Merge.

from glibc-common-2.5-10.fc6) do not like this.

.cvsignore

@@ -1,4 +0,0 @@
-.cvsignore
-ChangeLog.cvs*
-build
-maint

.hgignore

@@ -0,0 +1,51 @@
+syntax: regexp
+
+^\.bzr
+^ChangeLog
+^Makevars.global
+^build
+^maint
+
+syntax: glob
+
+Makevars.local
+
+*.a
+*.dll
+*.lib
+*.py[cdo]
+*.so
+*.swp
+
+doc/*.1
+doc/*.doc
+doc/*.html
+doc/*.man
+doc/*.ps
+doc/*.tex
+
+src/GNUmakefile
+src/MMakefile
+src/compress_nrv*
+src/*.mft
+src/*.rc
+
+src/*.d
+src/*.exe
+src/*.map
+src/*.o
+src/*.obj
+src/*.out
+src/*.res
+src/*.ttp
+
+stub/**MMakefile
+stub/**.*-stamp
+stub/tmp*/*
+stub/**/tmp*/*
+
+stub/tools/armpe/armpe_tester
+
+stub/tools/sstrip/amd64-linux-sstrip
+stub/tools/sstrip/i386-linux-sstrip
+stub/tools/sstrip/sstrip

.hgtags

@@ -0,0 +1,15 @@
+140415ffbcef86a42b4d672249927364430d3d38 RELEASE_111
+223ac5b23f9731ceac9ff8d65167df4900776e36 RELEASE_190
+2c753c5bf38e7322715e2a5c6c5381111bd7a61a RELEASE_194
+2ee65b77f9117651e2e5517b2edede23698d73ca RELEASE_196
+396983c065fc743cb5b9703e266ca87eeff8a6ee RELEASE_291
+70402aeee6e0e4fc2889658ed8cee44461c0b0a8 RELEASE_200
+a1c61174f54aac714f59ac20fcba839d71e64c5c RELEASE_292
+a916a2fe22de45167d25abcb40008315f415221c RELEASE_201
+a935d577fc7dd9c2c87761c9c702805da6ce1e51 RELEASE_193
+b0353253b0b3d062eb5adb50d4b665a96620da45 RELEASE_195
+b82ef51896199484afe5b0553af7d1e59b7ce428 BRANCHPOINT_FOR_upx2.hg
+c2e0cd4d621b047f254f2def42132a03683ff52c RELEASE_192
+d276aa09033c24d0981bc3f4fee5628aecc988ad RELEASE_290
+eb1ce56dce7dd1835964362470610925963b9043 RELEASE_110
+ed96891ef795bceec6b7ff3ca1ca7764431bfb39 RELEASE_191

BUGS

@@ -8,8 +8,8 @@
 
 
                     The Ultimate Packer for eXecutables
-          Copyright (c) 1996-2002 Markus Oberhumer & Laszlo Molnar
+   Copyright (c) 1996-2007 Markus Oberhumer, Laszlo Molnar & John Reiser
-                       http://upx.sourceforge.net
+                        http://upx.sourceforge.net
 
 
 Limitations and other things which are not (yet) supported:

COPYING

@@ -1,8 +1,8 @@
                     GNU GENERAL PUBLIC LICENSE
                        Version 2, June 1991
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
-     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
@@ -15,7 +15,7 @@ software--to make sure the software is free for all its users.  This
 General Public License applies to most of the Free Software
 Foundation's software and to any other program whose authors commit to
 using it.  (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.)  You can apply it to
+the GNU Lesser General Public License instead.)  You can apply it to
 your programs, too.
 
   When we speak of free software, we are referring to freedom, not
@@ -55,7 +55,7 @@ patent must be licensed for everyone's free use or not licensed at all.
 
   The precise terms and conditions for copying, distribution and
 modification follow.
-
+
                     GNU GENERAL PUBLIC LICENSE
    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
@@ -110,7 +110,7 @@ above, provided that you also meet all of these conditions:
     License.  (Exception: if the Program itself is interactive but
     does not normally print such an announcement, your work based on
     the Program is not required to print an announcement.)
-
+
 These requirements apply to the modified work as a whole.  If
 identifiable sections of that work are not derived from the Program,
 and can be reasonably considered independent and separate works in
@@ -168,7 +168,7 @@ access to copy from a designated place, then offering equivalent
 access to copy the source code from the same place counts as
 distribution of the source code, even though third parties are not
 compelled to copy the source along with the object code.
-
+
   4. You may not copy, modify, sublicense, or distribute the Program
 except as expressly provided under this License.  Any attempt
 otherwise to copy, modify, sublicense or distribute the Program is
@@ -225,7 +225,7 @@ impose that choice.
 
 This section is intended to make thoroughly clear what is believed to
 be a consequence of the rest of this License.
-
+
   8. If the distribution and/or use of the Program is restricted in
 certain countries either by patents or by copyrighted interfaces, the
 original copyright holder who places the Program under this License
@@ -278,7 +278,7 @@ PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGES.
 
                      END OF TERMS AND CONDITIONS
-
+
             How to Apply These Terms to Your New Programs
 
   If you develop a new program, and you want it to be of the greatest
@@ -291,7 +291,7 @@ convey the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
     <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) 19yy  <name of author>
+    Copyright (C) <year>  <name of author>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -303,17 +303,16 @@ the "copyright" line and a pointer to where the full notice is found.
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
+    You should have received a copy of the GNU General Public License along
-    along with this program; if not, write to the Free Software
+    with this program; if not, write to the Free Software Foundation, Inc.,
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
 
 Also add information on how to contact you by electronic and paper mail.
 
 If the program is interactive, make it output a short notice like this
 when it starts in an interactive mode:
 
-    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision version 69, Copyright (C) year name of author
     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     This is free software, and you are welcome to redistribute it
     under certain conditions; type `show c' for details.
@@ -336,5 +335,5 @@ necessary.  Here is a sample; alter the names:
 This General Public License does not permit incorporating your program into
 proprietary programs.  If your program is a subroutine library, you may
 consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Library General
+library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.

Makefile

@@ -1,33 +1,47 @@
-# Toplevel Makefile for UPX
+#
+# UPX toplevel Makefile - needs GNU make 3.80 or better
+#
 
-SHELL = /bin/sh
+MAKEFLAGS += -rR
+.SUFFIXES:
+export SHELL = /bin/sh
 
 srcdir = .
 top_srcdir = .
+-include $(top_srcdir)/Makevars.global ./Makevars.local
 
 
+# info: src/stub needs GNU make 3.81 and special build tools
+BUILD_STUB = 0
+ifneq ($(wildcard $(HOME)/local/bin/bin-upx/.),)
+BUILD_STUB = 1
+endif
+ifneq ($(wildcard $(HOME)/bin/bin-upx/.),)
+BUILD_STUB = 1
+endif
+ifneq ($(findstring $(firstword $(MAKE_VERSION)),3.79 3.79.1 3.80),)
+BUILD_STUB = 0
+endif
+
+
+default:
+	@echo "UPX info: please choose a target for 'make'"
+
 all mostlyclean clean distclean maintainer-clean:
-	$(MAKE) -C src/stub/util/sstrip $@
+ifeq ($(BUILD_STUB),1)
 	$(MAKE) -C src/stub $@
+endif
 	$(MAKE) -C src $@
 	$(MAKE) -C doc $@
 
-dist: distclean
-	false
-
-zip:
-	cd .. && rm -f upx-current.zip && zip -r upx-current.zip upx
-
-cvs-admin-ko:
-	cvs admin -ko .
-	cvs update
 
+ifneq ($(wildcard .hg/data/.),)
+# automatically generate ChangeLog from local Mercurial repo
 ChangeLog:
-	perl $(srcdir)/scripts/cvs2cl.pl --utc -f ChangeLog.cvs
+	hg log --style=changelog > $@
+.PHONY: ChangeLog
+endif
 
 
-.PHONY: all mostlyclean clean distclean maintainer-clean
+.PHONY: default all mostlyclean clean distclean maintainer-clean
-.PHONY: dist cvs-admin-ko ChangeLog
-
-.NOEXPORT:
 

NEWS

@@ -2,19 +2,119 @@
 User visible changes for UPX
 ==================================================================
 
-[ BETA VERSION - please see README.1ST for some more info ]
+Changes in 2.93 beta (08 Mar 2007):
+  * new formats Mach/i386 and Mach/fat support Mac OS X i686 and
+    Universal binaries [i686 and PowerPC only]
+  * dos/exe: LZMA is now also supported for 16-bit dos/exe. Please note that
+    you have to explicitly use '--lzma' even for '--ultra-brute' here
+    because runtime decompression is about 30 times slower than NRV -
+    which is really noticeable on old machines.
+  * dos/exe: fixed a rarely occuring bug in relocation handling
+  * win32/pe & arm/pe: better icon compression handling
+
+Changes in 2.92 beta (23 Jan 2007):
+  * new option '--ultra-brute' which tries even more variants
+  * slightly improved compression ratio for some files when
+    using '--brute' or '--ultra-brute'
+  * bug fixes
+
+Changes in 2.91 beta (29 Nov 2006):
+  * assorted bug fixes
+  * arm/pe: fix "missing" icon & version info resource problem for wince 5
+  * win32/pe & arm/pe: added option --compress-icons=3 to compress all icons
+
+Changes in 2.90 beta (08 Oct 2006):
+  * LZMA algorithm support for most of the 32-bit and 64-bit file formats;
+    use new option '--lzma' to enable
+  * new format: BSD/elf386 supporting FreeBSD, NetBSD and OpenBSD
+    via auto-detection of PT_NOTE or EI_OSABI
+  * arm/pe: all the NRV compression methods are now supported
+    (only NRV2D is missing in thumb mode)
+  * linux/elf386, linux/ElfAMD: remember /proc/self/exe in environment
+  * major source code changes: the runtime decompression stubs are now
+    built from internal ELF objects
+
+==================================================================
+
+Changes in 2.03 (07 Nov 2006):
+  * bvmlinuz/386: fix for kernels not at 0x100000; also allow x86_64
+  * linux/elf386: work around Linux kernel bug (0-length .bss needs PF_W)
+
+Changes in 2.02 (13 Aug 2006):
+  * linux/386: work around Linux kernel bug (".bss" requires PF_W)
+  * linux/ppc32, mach/ppc32: compressed programs now work on a 405 CPU
+  * vmlinuz/386: fixed zlib uncompression problem on DOS
+
+Changes in 2.01 (06 Jun 2006):
+  * arm/pe: better DLL support
+  * dos/exe: device driver support added
+  * linux/386: Fix --force-execve for PaX, grSecurity, and strict SELinux.
+    /tmp must support execve(); therefore /tmp cannot be mounted 'noexec'.
+  * win32/pe & arm/pe: added new option '--keep-resource=' for
+    excluding selected resources from compression
+
+Changes in 2.00 (27 Apr 2006):
+  * linux/386: the stub now prints an error message if some strict
+    SELinux mode does prevent runtime decompression and execution
+    (for a fully SELinux-compatible but otherwise inferior compression
+    format you can use the '--force-execve' option)
+  * linux/386: worked around a problem where certain Linux kernels
+    clobber the %ebx register during a syscall
+  * win32/pe: disable filters for files with broken PE headers
+
+Changes in 1.96 beta (13 Apr 2006):
+  * arm/pe: added filter support
+  * win32/pe: removed an unnecessary check so that Delphi 2006 and
+    Digital Mars C++ programs finally are supported
+
+Changes in 1.95 beta (09 Apr 2006):
+  * arm/pe: added DLL support
+  * arm/pe: added thumb mode stub support
+  * arm/pe: added unpacking support
+  * win32/pe: really worked around R6002 runtime errors
+
+Changes in 1.94 beta (11 Mar 2006):
+  * new format: added support for arm/pe (ARM executables running on WinCE)
+  * new format: added support for linux elf/amd64
+  * new format: added support for linux elf/ppc32
+  * new format: added support for mach/ppc32 (Apple Mac OS X)
+  * win32/pe: hopefully working "load config" support
+  * win32/pe: R6002 runtime errors worked around
+  * win32/pe: the stub now clears the dirty stack
+
+Changes in 1.93 beta (07 Feb 2005):
+  * vmlinuz/386: fixes to support more kernels
+
+Changes in 1.92 beta (20 Jul 2004):
+  * win32/pe: added option '--strip-loadconf' to strip the SEH load
+    config section [NOTE: this option is obsolete since UPX 1.94]
+  * win32/pe: try to detect .NET (win32/net) files [not yet supported by UPX]
+  * vmlinux/386: new format that directly supports building Linux kernels
+  * source code: now compiles cleanly under Win64
+
+Changes in 1.91 beta (30 Jun 2004):
+  * djgpp2/coff: added support for recent binutils versions
+  * linux/elf386, linux/sh386: lots of improvements
+  * vmlinuz/386: added support for recent kernels
+  * watcom/le: don't crash on files without relocations
+  * win32/pe: stricter checks of some PE values
+  * option '--brute' now implies '--crp-ms=999999'.
+  * source code: much improved portability using ACC, the
+    Automatic Compiler Configuration
+  * source code: compile fixes for strict ISO C++ compilers
+  * source code: compile fixes for Win64
+  * re-synced with upx 1.25 branch
 
 Changes in 1.90 beta (11 Nov 2002):
-  * UNSTABLE BETA VERSION - DO NOT USE EXCEPT FOR TESTING
   * implemented several new options for finer compression control:
-      `--all-methods', `--all-filters' and `--brute'
+    '--all-methods', '--all-filters' and '--brute'
   * ps1/exe: new format - UPX now supports PlayStation One programs
-  * linux/386: added the option `--force-execve'
+  * linux/386: added the option '--force-execve'
   * vmlinuz/386: better kernel detection and sanity checks
+  * re-synced with upx 1.24 branch
   * documentation updates
 
 Changes in 1.11 beta (20 Dec 2000):
-  * UNSTABLE BETA VERSION - DO NOT USE EXCEPT FOR TESTING
   * vmlinuz/386: new format - UPX now supports bootable linux kernels
   * linux/elf386: added the new ELF direct-to-memory executable format - no
     more temp files are needed for decompression!
@@ -25,6 +125,15 @@ Changes in 1.11 beta (20 Dec 2000):
 
 ==================================================================
 
+Changes in 1.25 (29 Jun 2004)
+  * INFO: http://upx.sourceforge.net is the permanent UPX home page
+  * watcom/le: don't crash on files without relocations
+  * win32/pe: stricter checks of some PE values
+  * source code: much improved portability using ACC, the
+    Automatic Compiler Configuration
+  * source code: compile fixes for strict ISO C++ compilers
+  * source code: compile fixes for Win64
+
 Changes in 1.24 (07 Nov 2002)
   * djgpp2/coff: stricter check of the COFF header to work around a
     problem with certain binutils versions
@@ -41,13 +150,13 @@ Changes in 1.23 (05 Sep 2002)
 Changes in 1.22 (27 Jun 2002)
   * atari/tos: the stub now flushes the CPU cache to avoid
     problems on 68030+ machines
-  * source code: additional compiler support for Borland C++ 5.5.1,
+  * source code: additional compiler support for Borland C++,
-    Digital Mars C++ 8.28 and Watcom C++ 11.0c
+    Digital Mars C++ and Watcom C++
 
 Changes in 1.21 (01 Jun 2002)
-  * New option `--crp-ms=' for slightly better compression at the cost
+  * New option '--crp-ms=' for slightly better compression at the cost
     of higher memory requirements during compression.
-    Try `upx --best --crp-ms=100000'. See the docs for more info.
+    Try 'upx --best --crp-ms=100000'. See the docs for more info.
   * source code: portability fixes
   * source code: compile fixes for g++ 3.0 and g++ 3.1
 
@@ -61,7 +170,6 @@ Changes in 1.20 (23 May 2001)
            our unstable development releases 1.1x and 1.9x]
 
 Changes in 1.08 (30 Apr 2001)
-  * INFO: http://upx.sourceforge.net now is the new permanent UPX home page
   * new native port to atari/tos
   * win32/pe: shortened the identstring
   * source code: portability fixes - UPX now builds cleanly under m68k CPUs
@@ -86,7 +194,7 @@ Changes in 1.05 (24 Jan 2001)
       at the unstable UPX 1.1x beta versions for that)
 
 Changes in 1.04 (19 Dec 2000)
-  * dos/exe: fixed an internal error when using `--no-reloc'
+  * dos/exe: fixed an internal error when using '--no-reloc'
   * win32/pe: fixed a rare bug in the relocation handling code
   * some tunings for the default compression level
 
@@ -94,7 +202,7 @@ Changes in 1.03 (30 Nov 2000)
   * linked with a new version of the NRV compression library:
       - improved compression ratio a little bit
       - overall significantly faster compression
-      - much faster when using high compression levels like `-9' or `--best'
+      - much faster when using high compression levels like '-9' or '--best'
       - much faster with large files
   * atari/tos: added support for FreeMiNT
   * the 32-bit DOS version now uses the new CWSDSTUB extender
@@ -102,7 +210,7 @@ Changes in 1.03 (30 Nov 2000)
 Changes in 1.02 (13 Sep 2000)
   * watcom/le: fixed a problem with the Causeway extender
   * win32/pe: don't automatically strip relocs if they seem needed
-  * support multiple backup generations when using `-k'
+  * support multiple backup generations when using '-k'
   * updated the console screen driver
 
 Changes in 1.01 (09 Apr 2000)
@@ -130,7 +238,7 @@ Changes in 0.99.1 (29 Feb 2000)
 
 Changes in 0.99 (25 Feb 2000)
   * FULL SOURCE CODE RELEASED UNDER THE TERMS OF THE GNU GPL
-  * win32/pe: changed default to `--strip-relocs=1'
+  * win32/pe: changed default to '--strip-relocs=1'
   * dos/com and dos/sys: fixed a bad decompressor problem
   * linux/386: the counter for the progress indicator was off by one
 
@@ -153,7 +261,7 @@ Changes in 0.91 (13 Nov 1999)
   * dos/exe: correctly restore cs when uncompressing
 
 Changes in 0.90 (10 Nov 1999)
-  * all formats: `--overlay=copy' now is the default overlay mode
+  * all formats: '--overlay=copy' now is the default overlay mode
   * improved compression ratio for most files
   * win32/pe: uncompression is finally supported
   * win32/pe: never compress REGISTRY resources
@@ -163,7 +271,7 @@ Changes in 0.90 (10 Nov 1999)
   * win32/pe: somewhat less memory is required during compression
   * linux/386: fixed compression of scripts which was broken since 0.71
   * linux/386: more FreeBSD compatibility issues
-  * changed option: `-i' now prints some more details during compression
+  * changed option: '-i' now prints some more details during compression
     (not finished yet)
 
 Changes in 0.84 (04 Oct 1999)
@@ -179,7 +287,7 @@ Changes in 0.83 (17 Sep 1999)
 Changes in 0.82 (16 Aug 1999)
   * dos/exe: fixed a decompressor bug which could cause crash on some files
   * linux/386: section headers are now stripped from the stub so that
-    `strip' won't ruin a compressed file any longer
+    'strip' won't ruin a compressed file any longer
   * wc/le: support for stack not in the last object disabled again
   * win32/pe: removed some unneeded data
 
@@ -188,32 +296,32 @@ Changes in 0.81 (04 Aug 1999)
   * dos/com: fixed an internal error that could happen with very small files
 
 Changes in 0.80 (03 Aug 1999)
-  * you can set some default options in the environment var `UPX'
+  * you can set some default options in the environment var 'UPX'
   * dos/com: the decompressor stub now checks for enough free memory
   * dos/exe: decompressor rewritten, some bugs are fixed
-  * dos/exe: new option `--no-reloc': no relocation data is put into
+  * dos/exe: new option '--no-reloc': no relocation data is put into
     the DOS header
   * tmt/adam: added support for more stubs, detect already packed files
-  * tmt/adam: new option `--copy-overlay'
+  * tmt/adam: new option '--copy-overlay'
   * wc/le: reduced memory requirement during uncompression
   * wc/le: support files which do not contain their stack in the last object
   * wc/le: fixed a bug which could cause a crash, improved relocation
     handling
-  * wc/le: new option `--copy-overlay'
+  * wc/le: new option '--copy-overlay'
-  * win32/pe: `--compress-icons=2' is now the default
+  * win32/pe: '--compress-icons=2' is now the default
   * win32/pe: even better TLS support
   * win32/pe: versioninfo works on NT
   * win32/pe: import by ordinal from kernel32.dll works
-  * win32/pe: other import improvements: importing a nonexistant DLL
+  * win32/pe: other import improvements: importing a nonexistent DLL
-    results in a usual Windows message, importing a nonexistant function
+    results in a usual Windows message, importing a nonexistent function
     results in program exit (instead of crash ;-)
-  * win32/pe: new option: `--compress-resources=0'
+  * win32/pe: new option: '--compress-resources=0'
   * win32/pe: reduced memory requirement during uncompression, some
     files might even require LESS memory when they're compressed
   * win32/pe: TYPELIBs should work now
   * win32/pe: improved relocation handling, 16-bit relocations should work
-  * win32/pe: new option `--strip-relocs' (only if you know what you are doing)
+  * win32/pe: new option '--strip-relocs' (only if you know what you are doing)
-  * win32/pe: new option `--copy-overlay'
+  * win32/pe: new option '--copy-overlay'
   * important internal changes: now the stubs are built at runtime
 
 Changes in 0.72 (12 May 1999)
@@ -227,20 +335,20 @@ Changes in 0.72 (12 May 1999)
   * linux/386: minor decompressor stub updates, nicer progress bar
 
 Changes in 0.71 (19 Apr 1999)
-  * dos/exe: added option `--no-overlay'
+  * dos/exe: added option '--no-overlay'
   * linux/386: various improvements in the stub, most notably the
     overhead for an extra cleanup process has been removed
   * win32/pe: added support for export forwarders
   * win32/pe: added support for DLLs without entry point or imports
   * win32/pe: yet another .bss fix
-  * win32/pe: new option `--compress-icons=2': compress all icons
+  * win32/pe: new option '--compress-icons=2': compress all icons
     which are not in the first icon directory
   * win32/pe: rearranged stub to avoid false alerts from some virus scanners
 
 Changes in 0.70 (30 Mar 1999)
   * added support for linux/386 executables
   * improved compression ratio quite a bit
-  * added new compression level `--best' to squeeze out even some more bytes
+  * added new compression level '--best' to squeeze out even some more bytes
   * win32/pe: TLS support is much better now
   * win32/pe: --compress-icons=0 should now work as well
   * the usual minor fixes for win32/pe
@@ -257,7 +365,7 @@ Changes in 0.60 (06 Mar 1999)
   * win32/pe: fixed file corruption when the size of the export data is invalid
   * win32/pe: fixed a problem with empty resource data
   * win32/pe: compressed file alignment set to minimum value
-  * win32/pe: made all compressed sections writeable
+  * win32/pe: made all compressed sections writable
   * fixed some other win32/pe bugs
   * fixed an address optimization problem for some not Watcom LE files
   * fixed a bug which could make UPX hang when an exe header contained
@@ -281,7 +389,7 @@ Changes in 0.40 (05 Oct 1998)
   * fixed a small but fatal bug in dos/sys introduced in 0.30
   * fixed a rare bug in dos/exe
   * worked around a bug in djgpp's strip 2.8
-  * Allegro packfile support should work now
+  * djgpp/coff: Allegro packfile support should work now
   * added dos/exeh compression method (works on 386+)
 
 Changes in 0.30 (27 Jul 1998)
@@ -298,3 +406,5 @@ Changes in 0.20 (05 Jul 1998)
 Changes in 0.05 (26 May 1998)
   * first public beta release
 
+
+# vim:set syntax=off tw=0 ts=4 sw=4 et: -*- coding: utf-8 -*-

PROJECTS

@@ -8,8 +8,8 @@
 
 
                     The Ultimate Packer for eXecutables
-          Copyright (c) 1996-2002 Markus Oberhumer & Laszlo Molnar
+   Copyright (c) 1996-2007 Markus Oberhumer, Laszlo Molnar & John Reiser
-                       http://upx.sourceforge.net
+                        http://upx.sourceforge.net
 
 
 Here are some possible projects from which you can choose if you'd like to
@@ -42,8 +42,6 @@ More formats:
  - freebsd/386 (generic), freebsd/elf386 (specialized).
    Probably could share most of the linux code.
 
- - Windows CE
-
  - add support for self-extracting HTML pages using a Javascript stub
    (like the AlgART HTML Packer "AHP")
 
@@ -58,8 +56,6 @@ Existing formats:
 
  - dos/exe: implement filter support
 
- - dos/sys: add support for sys/exe combos
-
  - linux/i386:
      - use the new assembly preprocessor stuff (ie. process the file
        headers internally)
@@ -70,8 +66,7 @@ Existing formats:
 
  - win32/pe: display a nice dialog box in the stub in case
      of problems (like importing a DLL or function fails)
- - win32/pe: finer control over resource compression, per section
+ - win32/pe: per section compression
-     compression
 
 
 Compression ratio:

README

@@ -8,26 +8,11 @@
 
 
                     The Ultimate Packer for eXecutables
-          Copyright (c) 1996-2002 Markus Oberhumer & Laszlo Molnar
+   Copyright (c) 1996-2007 Markus Oberhumer, Laszlo Molnar & John Reiser
-                       http://upx.sourceforge.net
+                        http://upx.sourceforge.net
 
 
 
-WARNING - UNSTABLE BETA VERSION
-===============================
-
-All versions 1.9x are unstable beta releases - use them only for testing,
-and never distribute a program that is packed with them !
-There will be hidden bugs. Really.
-
-The current stable release is 1.22, and the next stable release
-will be called version 2.00.
-
-The main news since 1.22 are support for bootable Linux kernels ("vmlinuz/386")
-and direct Linux ELF-to-memory decompression ("linux/elf386"), so there's
-no reason to use the unstable versions unless you want to try the new formats.
-
-
 WELCOME
 =======
 
@@ -52,7 +37,7 @@ and run exactly as before, with no runtime or memory penalty for most
 of the supported formats.
 
 UPX supports a number of different executable formats, including
-Windows 95/98/ME/NT/2000/XP programs and DLLs, DOS programs,
+Windows 95/98/ME/NT/2000/XP/CE programs and DLLs, DOS programs,
 and Linux executables and kernels.
 
 UPX is free software distributed under the term of the GNU General
@@ -70,8 +55,8 @@ UPX aims to be Commercial Quality Freeware.
 SHORT DOCUMENTATION
 ===================
 
-`upx program.exe' will compress a program or DLL. For best compression
+'upx program.exe' will compress a program or DLL. For best compression
-results try `upx --best program.exe'.
+results try 'upx --brute program.exe'.
 
 Please see the file UPX.DOC for the full documentation. The files
 NEWS and BUGS also contain various tidbits of information.
@@ -85,7 +70,7 @@ UPX comes with ABSOLUTELY NO WARRANTY; for details see the file LICENSE.
 Having said that, we think that UPX is quite stable now. Indeed we
 have compressed lots of files without any problems. Also, the
 current version has undergone several months of beta testing -
-actually it's more than 4 years since our first public beta.
+actually it's almost 8 years since our first public beta.
 
 This is the first production quality release, and we plan that future
 releases will be backward compatible with this version.
@@ -111,7 +96,7 @@ THE FUTURE
   - We will *NOT* add any sort of protection and/or encryption.
     This only gives people a false feeling of security because
     by definition all protectors/compressors can be broken.
-    And don't trust any advertisment of authors of other executable
+    And don't trust any advertisement of authors of other executable
     compressors about this topic - just do a websearch on "unpackers"...
 
   - Fix all remaining bugs - keep your reports coming ;-)
@@ -123,8 +108,9 @@ THE FUTURE
 COPYRIGHT
 =========
 
-Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-Copyright (C) 1996-2002 Laszlo Molnar
+Copyright (C) 1996-2007 Laszlo Molnar
+Copyright (C) 2000-2007 John F. Reiser
 
 This program may be used freely, and you are welcome to
 redistribute it under certain conditions.
@@ -143,7 +129,7 @@ Markus & Laszlo
 
 
    Markus F.X.J. Oberhumer                   Laszlo Molnar
-   markus@oberhumer.com                      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com                      ml1050@users.sourceforge.net
 
 
 

README.1ST

@@ -8,24 +8,24 @@
 
 
                     The Ultimate Packer for eXecutables
+   Copyright (c) 1996-2007 Markus Oberhumer, Laszlo Molnar & John Reiser
+                        http://upx.sourceforge.net
 
 
 
 WARNING - UNSTABLE BETA VERSION
 ===============================
 
-All versions 1.9x are unstable beta releases - use them only for testing,
+The current stable release is 2.02, and the next stable release
-and never distribute a program that is packed with them !
+will be called version 3.00.
-There will be hidden bugs. Really.
 
-The current stable release is 1.24, and the next stable release
-will be called version 2.00.
 
-The main news since 1.24 are:
+MAJOR NEWS IN UPX 3
-  - slightly better compression using the new NRV2E algorithm
+===================
-  - new options for compression tuining (e.g. `--brute')
+
-  - support for bootable Linux kernels ("vmlinuz/386")
+The main news since UPX 2 are:
-  - direct Linux ELF-to-memory decompression ("linux/elf386")
+
-  - support for playstation exes ("ps1/exe")
+  * new format: added support for linux elf/arm
-  - lots of new bugs ;-) take care
+
+  * better compression using the LZMA algorithm (option '--lzma')
 

README.SRC

@@ -66,49 +66,42 @@ Prerequisites
 Tools needed to build/modify the UPX sources
 --------------------------------------------
 
-  - A modern C++ compiler like gcc 2.95.3 or Visual C++ 6
+  - A C++ compiler supporting inner classes, templates, exceptions
+    and RTTI.
 
-  - GNU make for Win32
+  - GNU make 3.80 or better (GNU make 3.81 recommened).
-    http://upx.sourceforge.net/download/tools/
-
-  - GNU make for DOS
-    ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/
 
 
 To compile the packer sources
 -----------------------------
 
-  set the environment variable UCLDIR to point to your UCL installation, e.g.
+  Set the environment variable UPX_UCLDIR to point to your
+  UCL build directory, e.g.
 
-     set UCLDIR=c:\src\ucl-1.01                       (DOS / Windows)
+     set UPX_UCLDIR=c:\src\ucl-1.03                   (DOS / Windows)
-     export UCLDIR=$HOME/local/src/ucl-1.01           (Unix)
+     export UPX_UCLDIR=$HOME/local/src/ucl-1.03       (Unix)
 
-  then type
+  Set the environment variable UPX_LZMADIR to point to your
+  to your unpacked lzma443.tar.bz2 source directory, e.g.
 
-     make target=linux              # on linux
+     export UPX_LZMADIR=$HOME/local/src/lzma-4.43     (Unix)
-     make target=djgpp2             # for djgpp2
+
-     make target=mingw32            # for mingw32
+  Finally type
-     make target=cygwin             # cygwin 1.3.x
+
-     make target=no-cygwin          # for mingw32 as included in cygwin
+     make
-     make target=vc6                # for Visual C++ 6.0
 
 
 If you want to modify the stub sources you'll also need
 -------------------------------------------------------
 
-  - Nasm 0.98.34 - the Netwide Assembler
+  - GNU make 3.81 or better
-    http://upx.sourceforge.net/download/tools/
+    http://savannah.gnu.org/projects/make/
-    http://nasm.sourceforge.net/
 
-  - A68K - a 68000 macro assembler
+  - Perl & Python
-    http://upx.sourceforge.net/download/tools/
 
-  - djasm - an assembler for the djgpp stub
+  - A number of cross-assemblers and cross-compilers - precompiled
-    http://upx.sourceforge.net/download/tools/
+    binaries for i386-linux hosts are available from
-
+    http://sourceforge.net/project/showfiles.php?group_id=2331
-  - Perl 5.004 or better
-
-  - Linux (for the linux/386 stubs)
 
 
 Misc. notes
@@ -123,9 +116,6 @@ Misc. notes
     stream.
   - Use gcc extensions and other compiler specific stuff only through
     macros.
-  - Keep in mind that it should be possible to build UPX on braindead
-    file systems (FAT). Don't use long file names or other things
-    that break building under plain DOS.
 
 ***
 
@@ -150,3 +140,5 @@ Patches/Contributions
 
       diff -uNr olddirectory newdirectory
 
+
+# vi:ts=4:et

THANKS

@@ -8,8 +8,8 @@
 
 
                     The Ultimate Packer for eXecutables
-          Copyright (c) 1996-2002 Markus Oberhumer & Laszlo Molnar
+   Copyright (c) 1996-2007 Markus Oberhumer, Laszlo Molnar & John Reiser
-                       http://upx.sourceforge.net
+                        http://upx.sourceforge.net
 
 
 .___..        .
@@ -39,12 +39,12 @@ Ice
   for debugging the PE headersize problem down
 Joergen Ibsen <jibz@hotmail.com> and d'b
   for the relocation & address optimization ideas
-John F. Reiser <jreiser@BitWagon.com>
-  for the new Linux executable formats
 John S. Fine <johnfine@erols.com>
   for the new version of the dos/exe decompressor
 Lukundoo <Lukundoo@softhome.net>
   for beta testing
+Michael Devore
+  for initial dos/exe device driver support
 Oleg V. Volkov <rover@lglobus.ru>
   for various FreeBSD specific informations
 The Owl & G-RoM

TODO

@@ -1,4 +1,14 @@
-UPX TODO list. Last updated 2002-11-11.
+UPX TODO list. Last updated 2006-12-08.
+
+
+IMPORTANT PROBLEMS THAT SHOULD BE FIXED SOON:
+
+- [None]
+
+
+OTHER:
+
+- docs: convert docs from upx.pod to use AsciiDoc
 
 - check all <const_cast> to make sure they are not invalid
 
@@ -6,6 +16,8 @@ UPX TODO list. Last updated 2002-11-11.
   (info: bla bla). Also ui.cpp (total_*).
 
 
+-----------------------------------------------------------------------
+
 
 IMPROVED COMPRESSION RATIO
 ==========================
@@ -29,8 +41,6 @@ ALL FORMATS
 - implement `--cpu=486' option to use bswap on the 32-bit formats
     (if cpu >= 486)
 
-- consider removing "or ebp,-1" when not needed
-
 
 FORMAT DJGPP2/COFF
 ==================
@@ -65,6 +75,8 @@ FORMAT TMT/ADAM
 FORMAT WATCOM/LE
 ================
 
+- handle files without relocations
+
 - the decompressors are already aligned, no need for an
     extra alignment
 
@@ -72,10 +84,6 @@ FORMAT WATCOM/LE
 
 - handle holes in the file
 
-- implement compressWithFilters()
-
-- add a call to verifyOverlappingDecompression()
-
 
 FORMAT WIN16/NE
 ===============
@@ -91,11 +99,6 @@ FORMAT WIN32/PE
 
 - decrease runtime memory overhead
 
-2 - easy - mfx + ml) new switch(es) : do not compress resource types x,y,z
-    or resource names a,b,c
-
-3 - medium - ml) rebuild exports
-
 3 - difficult) don't compress the BSS section and other holes.
 
 4 - medium - ml) fix when objectalign < 0x1000

doc/.cvsignore

@@ -1,6 +0,0 @@
-upx.1
-upx.doc
-upx.html
-upx.man
-upx.ps
-upx.tex

doc/Makefile

@@ -1,34 +1,51 @@
+#
+# UPX doc Makefile - needs GNU make 3.80 or better
+#
+
+MAKEFLAGS += -rR
+.SUFFIXES:
 SHELL = /bin/sh
 
-top_srcdir = ..
+# internal make variables
+comma := ,
+empty :=
+space := $(empty) $(empty)
+tab   := $(empty)	$(empty)
 
-PACKAGE      = upx
+# update $PATH for our special stub build tools
-VERSION_DATE = 11 Nov 2002
+ifneq ($(wildcard $(HOME)/local/bin/bin-upx/.),)
-VERSION     := $(shell sed -n 's/^.*UPX_VERSION_STRING .*"\(.*\)".*/\1/p' $(top_srcdir)/src/version.h)
+export PATH := $(HOME)/local/bin/bin-upx:$(PATH)
+endif
+ifneq ($(wildcard $(HOME)/bin/bin-upx/.),)
+export PATH := $(HOME)/bin/bin-upx:$(PATH)
+endif
 
-TRIMSPACE = cat
+
-TRIMSPACE = sed -e 's/ *$$//'
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+top_srcdir ?= ..
+
+PACKAGE       = upx
+VERSION_DATE := $(shell sed -n 's/^.*UPX_VERSION_DATE_ISO .*"\(.*\)".*/\1/p' $(top_srcdir)/src/version.h)
+VERSION      := $(shell sed -n 's/^.*UPX_VERSION_STRING .*"\(.*\)".*/\1/p' $(top_srcdir)/src/version.h)
+
+RTRIM  := sed -e 's/[ $(tab)]*$$//'
+DETAB2 := sed -e 's/$(tab)/  /g'
 
 BUILT_SOURCES = upx.1 upx.doc upx.html upx.man upx.ps upx.tex
 BUILT_SOURCES = upx.1 upx.doc upx.html
 
 
 ###
-###
+### targets
 ###
 
 all: $(BUILT_SOURCES)
 
-mostlyclean:
+mostlyclean clean distclean maintainer-clean:
-	-rm -f $(BUILT_SOURCES) pod2htm*
+	rm -f $(BUILT_SOURCES) pod2htm*
-
-clean: mostlyclean
-
-distclean: clean
-
-maintainer-clean: distclean
-
-.SUFFIXES: .1 .doc .html .man .pod .ps .tex .texi
 
 .PHONY: all mostlyclean clean distclean maintainer-clean
 
@@ -37,32 +54,32 @@ maintainer-clean: distclean
 ### rules
 ###
 
-.pod.1:
+.SUFFIXES: .1 .doc .html .man .pod .ps .tex
-	pod2man --center=" " --release="$(PACKAGE) $(VERSION)" --date="$(VERSION_DATE)" $< | $(TRIMSPACE) > $@
 
-.pod.html:
+%.1 : %.pod
-###	pod2html $< | $(TRIMSPACE) > $@
+	pod2man --center=" " --release="$(PACKAGE) $(VERSION)" --date="$(VERSION_DATE)" $< | $(RTRIM) > $@
-	pod2html --noindex $< | $(TRIMSPACE) > $@
-	@-rm -f pod2htm*
 
-.pod.tex:
+%.doc : %.pod
+	pod2text < $< | $(RTRIM) > $@
+
+%.html : %.pod
+	pod2html --noindex $< | $(RTRIM) | $(DETAB2) > $@
+	@rm -f pod2htm*
+
+%.man : %.1
+	nroff -man $< | $(RTRIM) > $@
+
+%.ps : %.1
+	groff -man $< | $(RTRIM) > $@
+
+%.tex : %.pod
 	pod2latex $<
 
-.pod.doc:
-	pod2text < $< | $(TRIMSPACE) > $@
-
-.1.man:
-	nroff -man $< | $(TRIMSPACE) > $@
-
-.1.ps:
-	groff -man $< | $(TRIMSPACE) > $@
-
 
 ###
 ### dependencies
 ###
 
-$(BUILT_SOURCES): $(top_srcdir)/src/version.h Makefile
+$(BUILT_SOURCES): $(top_srcdir)/src/version.h $(MAKEFILE_LIST)
-
+.DELETE_ON_ERROR: $(BUILT_SOURCES)
-.NOEXPORT:
 

doc/elf-to-mem.txt

@@ -1,5 +1,5 @@
            Decompressing ELF Directly to Memory on Linux/x86
-          Copyright 2000 John F. Reiser  jreiser@BitWagon.com
+        Copyright (C) 2000-2007 John F. Reiser  jreiser@BitWagon.com
 
 References:
   <elf.h>   definitions for the ELF file format
@@ -17,7 +17,7 @@ program itself.  So, the decompressor program (which contains the
 compressed version of the original executable) must have the same
 brk() as the original executable.  So, the second PT_LOAD
 ELF "segment" of the compressed program is used only to set the brk(0).
-See src/p_lx_elf.cpp, function PackLinuxI386elf::patchLoader().
+See src/p_lx_elf.cpp, function PackLinuxElf32::generateElfHdr.
 All of the decompressor's code, and all of the compressed image
 of the original executable, reside in the first PT_LOAD of the
 decompressor program.
@@ -57,9 +57,25 @@ Subroutine do_xmap() of src/stub/l_lx_elf.c performs the
 "virtual execve()" using the compressed data as source, and stores
 the decompressed bytes directly into the appropriate virtual addresses.
 
-Before transfering control to the PT_INTERP "program interpreter",
+Before transferring control to the PT_INTERP "program interpreter",
 minor tricks are required to setup the Elf32_auxv_t entries,
 clear the free portion of the stack (to compensate for ld-linux.so.2
 assuming that its automatic stack variables are initialized to zero),
 and remove (all but 4 bytes of) the decompression program (and
 compressed executable) from the address space.
+
+Because the UPX runtime stub removes all traces of the compressed file
+from the address space, then the Linux kernel erases the symlink
+/proc/self/exe.  Linux stores the pathname argument that was specified
+to execve() immediately after the '\0' which terminates the character
+string of the last environment variable [as of execve()].  This is true
+for at least all Linux 2.6, 2.4, and 2.2 kernels.  The pathname is not
+"bound" to the file as strongly as /proc/self/exe (the file may be changed
+without affecting the pathname), but the pathname does provide some
+information.  The pathname may be relative to the working directory,
+so look before any chdir().
+
+The Elf formats for Linux add an environment variable named "   " [three
+spaces] which saves the results of readlink("/proc/self/exe",,) before
+the runtime stub unmaps all its pages.  As of 2006-10-03 this works
+for linux/elf386 and linux/ElfAMD.

doc/loader.txt

@@ -2,16 +2,8 @@ This documentation is written for those brave souls who want to
 understand and/or modify the UPX assembly stubs - the small snippets
 that do the runtime decompression when a compressed program is started.
 
-So, how the runtime stub/loader generation works?
+If you look at the C++ source files, you can find code fragments like
-
+this:
-You might have already noticed that for some file formats the loaders
-are quite simple (linux/i386 & tos) while in the other cases the
-loaders look very suspicious: they're full of `%ifdef's and contain
-loads of cryptic comments like `__PERELOC2__'.
-
-If you look at the C++ source files, however you can notice that these
-comment strings (without the leading and trailing underscores) are used
-in the following way (they are all 8 character length strings):
 
     addLoader("PEMAIN20",
               ih.entry ? "PEDOJUMP" : "PERETURN",
@@ -19,71 +11,40 @@ in the following way (they are all 8 character length strings):
               NULL
              );
 
-Basically that's all you have to know: when you want to add a section
+    linker->defineSymbol("original_entry", ih.entry);
-of assembly code to the runtime loader, you just write
 
-l_foo.asm
+and in the assembly files fragments like this:
----------
-    ;__FOOBAR00__
 
-    xor eax, eax
+    section         PEISDLL1
-    label1:
+                    cmpb    [esp + 8], 1
-    jmps label1
+                    jnz     reloc_end_jmp
 
-    ;__FOOBARZZ__
+    section         PEMAIN21
+    reloc_end_jmp:
 
-p_foo.cpp
+    section         PERETURN
----------
+                    xor     eax, eax
+                    inc     eax
+                    ret     0x0C
+    section         PEDOJUMP
+                    jmp    original_entry
 
-    addLoader("FOOBAR00", NULL);
+Everything works as you would expect. If you want to add the code
-
+fragment which is in `section PERETURN' to the runtime stub, then
-This will add the assembly section starting from __FOOBAR00__ and ending
+simply use `addLoader("PERETURN")' in the C++ source.
-before __FOOBARZZ__ to the loader. You can add an %ifdef - %endif pair
-before these comments if you wish - but these conditionals will NOT be
-seen by the assembler, they are just syntactic sugar to make the code a
-little bit more readable and understandable. (Note however, that only
-%ifdefs which are started on the 1st column are removed by the upx
-assembly preprocessor program, so you can still use preprocessor
-conditionals if you wish - just write them starting from the 2nd
-column.)
 
 That's nice, you could say, but how cross section jumps and calls are
 handled? Well, that is the nicest part of this stuff - they are handled
 automatically. All you have to do is to add the required sections to the
 loader using `addLoader()' and the rest is done by upx. It will resolve
-every conditional or unconditional jumps or subrutine calls for you.
+every conditional or unconditional jumps or subroutine calls for you.
 
-This functionality (we could say it's a simple linker) is achived by the
+You can also use (undefined) symbols in the assembly for values that
-assembly preprocessor (src/stub/scripts/app.pl) and a little C++ module
+can only be computed during compression time (like `original_entry').
-(src/linker.cpp). And of course NASM - the Netwide Assembler. You can
+These symbols can be defined later in C++ using
-see what's going on behind the scenes - just do:
 
-    cd src/stubs
+        linker->defineSymbol("xx", yy)
-    make maintainer-clean
-    make all
 
-This will rebuild all the loaders - and keep the temporary files (*.as[xy])
+This functionality (we could say it's a simple linker) is achieved by
-which are seen by the assembler.
+compiling the assembly into an ELF object file which a little C++
-
+module (src/linker.cpp) can interpret and work with.
-Currently this loader/stub building method only works with ix86
-assembly - both app.pl and linker.cpp heavily rely on this when dealing
-with cross section references.
-
-And finally some important features/requirements you should be aware of:
-
- - as previously stated - preprocessor conditionals starting on the 1st
-   column are removed by app.pl
- - sections are separated by comments in the form `;__X1234567__'
- - jumps are recognized by searching for a word which starts with `j'
-   and followed by a label - this also means that `jmp short label1'
-   will NOT be recognized (but you can use a macro called `jmps' for it
-   by adding `%define jmps jmp short' to the beginning of the file)
- - at the end of the file you need something like this
-
-    eof:
-    ;       __XTHEENDX__
-            section .data
-            dd      -1
-            dw      eof
-
-That's all for now.

doc/selinux.txt

@@ -0,0 +1,43 @@
+                        UPX and SELinux
+                        March 6, 2006
+
+
+When a program that has been compressed by UPX is run, the decompressor
+must create and write new memory pages of executable instructions.
+SELinux (Security Enhanced Linux) directly controls the conditions
+under which generating and/or executing new instructions is allowed,
+so the configuration settings of SELinux affect the running of programs
+that have been compressed by UPX.
+
+In SELinux "strict enforcing" mode (the most restrictive), generating
+new instructions at runtime is not allowed at all: any page with
+PROT_EXEC permission must be mapped from a file in a mounted filesystem
+that has 'x' [eXecute] permission, and the generation of such files is
+also tightly controlled.  A program that was compressed by UPX will not
+run in SELinux strict enforcing mode.  Attempts will fail with exit
+code 127, and a record will be added to the history file
+/var/log/audit/audit.log.
+
+In "targeted enforcing" mode, SELinux pays close attention mostly to
+designated processes that run with elevated privileges: web server,
+print server, login server, etc.  Ordinary user excutables receive
+much less scrutiny.  However, one of the eventual goals of SELinux is to
+eradicate runtime generation of instructions because of the possibility
+for exploitation by malware (virus, trojan, key logger, privilege
+elevation exploit, etc.)  Thus targeted enforcing mode notices and
+logs the use of "execmem" capability that is used by a program which
+was compressed by UPX.  In keeping with the goal of eventual prohibition,
+SELinux ordinarily would deny execmem.  However, most current SELinux
+systems, including Fedora Core 5 [set for release March 15, 2006],
+override this with "allow_exemem=1" in /etc/selinux/targeted/booleans.
+Thus a program compressed by UPX will run in the default installed
+configuration (targeted enforcing, allow_execmem=1) of SELinux under
+Fedora Core 5.  Each invocation will add a few lines to the log file
+/var/log/audit/audit.log, one line for each use of execmem.  If the
+SELinux policy becomes more restrictive in the future, then a special
+SELinux class or other mechanism must be created for compressed programs,
+or else UPX-compressed executables will not run then.
+
+In its "permissive" modes, SELinux just logs the potential problems,
+but otherwise does not interfere.  A program compressed by UPX will run
+in any permissive mode.

doc/upx.pod

@@ -12,15 +12,16 @@ B<upx> S<[ I<command> ]> S<[ I<options> ]> I<filename>...
 
 =head1 ABSTRACT
 
-            The Ultimate Packer for eXecutables
+                    The Ultimate Packer for eXecutables
-  Copyright (c) 1996-2002 Markus Oberhumer & Laszlo Molnar
+   Copyright (c) 1996-2007 Markus Oberhumer, Laszlo Molnar & John Reiser
-               http://upx.sourceforge.net
+                        http://upx.sourceforge.net
 
 
 B<UPX> is a portable, extendable, high-performance executable packer for
 several different executable formats. It achieves an excellent compression
 ratio and offers I<*very*> fast decompression. Your executables suffer
-no memory overhead or other drawbacks for most of the formats supported.
+no memory overhead or other drawbacks for most of the formats supported,
+because of in-place decompression.
 
 While you may use B<UPX> freely for both non-commercial and commercial
 executables (for details see the file LICENSE), we would highly
@@ -36,11 +37,6 @@ is considered not politically correct ;-) ]
 
 B<UPX> comes with ABSOLUTELY NO WARRANTY; for details see the file LICENSE.
 
-Having said that, we think that B<UPX> is quite stable now. Indeed we
-have compressed lots of files without any problems. Also, the
-current version has undergone several months of beta testing -
-actually it's more than 4 years since our first public beta back in 1998.
-
 This is the first production quality release, and we plan that future 1.xx
 releases will be backward compatible with this version.
 
@@ -55,7 +51,8 @@ B<UPX> is a versatile executable packer with the following features:
   - excellent compression ratio: compresses better than zip/gzip,
       use UPX to decrease the size of your distribution !
 
-  - very fast decompression: about 10 MB/sec even on my old Pentium 133
+  - very fast decompression: about 10 MB/sec on an ancient Pentium 133,
+      about 200 MB/sec on an Athlon XP 2000+.
 
   - no memory overhead for your compressed executables for most of the
       supported formats
@@ -78,8 +75,13 @@ B<UPX> is a versatile executable packer with the following features:
       * rtm32/pe
       * tmt/adam
       * vmlinuz/386     [bootable Linux kernel]
+      * vmlinux/386
       * watcom/le (supporting DOS4G, PMODE/W, DOS32a and CauseWay)
-      * win32/pe
+      * win32/pe (exe and dll)
+      * arm/pe (exe and dll)
+      * linux/elfamd64
+      * linux/elfppc32
+      * mach/elfppc32
 
   - portable: UPX is written in portable endian-neutral C++
 
@@ -136,6 +138,9 @@ B<--help>: prints the help
 
 B<--version>: print the version of B<UPX>
 
+B<--exact>: when compressing, require to be able to get a byte-identical file
+after decompression with option B<-d>
+
 [ ...to be written... - type `B<upx --help>' for now ]
 
 
@@ -166,29 +171,17 @@ Compression level B<--best> may take a long time.
 
 =back
 
-Note that compression level B<-9> can be somewhat slow for large
+Note that compression level B<--best> can be somewhat slow for large
 files, but you definitely should use it when releasing a final version
 of your program.
 
-Since UPX 0.70 there is also an extra compression level B<--best> which
+Quick info for achieving the best compression ratio:
-squeezes out even some more compression ratio. While it is usually fine
-to use this option with your favorite .com file it may take a long time
-to compress a multi-megabyte program. You have been warned.
-
-Tips for achieving the best compression ratio:
 
 =over 4
 
 =item *
 
-Use the compression level B<--best>.
+Try B<upx --brute myfile.exe> or even B<upx --ultra-brute myfile.exe>.
-
-=item *
-
-Try one or both of the options B<--all-methods> and B<--all-filters>.
-
-Info: the option B<--brute> is an abbrevation for all the options
-B<S<--best> S<--all-methods> S<--all-filters>>.
 
 =item *
 
@@ -204,12 +197,15 @@ For win32/pe programs there's B<--strip-relocs=0>. See notes below.
 
 =head1 OVERLAY HANDLING OPTIONS
 
+Info: An "overlay" means auxiliary data attached after the logical end of
+an executable, and it often contains application specific data
+(this is a common practice to avoid an extra data file, though
+it would be better to use resource sections).
+
 B<UPX> handles overlays like many other executable packers do: it simply
 copies the overlay after the compressed image. This works with some
-files, but doesn't work with others.
+files, but doesn't work with others, depending on how an application
-
+actually accesses this overlayed data.
-Since version 0.90 UPX defaults to B<--overlay=copy> for
-all executable formats.
 
   --overlay=copy    Copy any extra data attached to the file. [DEFAULT]
 
@@ -238,7 +234,8 @@ environment variable because of a COMMAND.COM limitation.
 Not all of the options are valid in the environment variable -
 B<UPX> will tell you.
 
-You can use the B<--no-env> option to turn this support off.
+You can explicitly use the B<--no-env> option to ignore the
+environment variable.
 
 
 
@@ -250,6 +247,7 @@ This is the executable format used by the Atari ST/TT, a Motorola 68000
 based personal computer which was popular in the late '80s. Support
 of this format is only because of nostalgic feelings of one of
 the authors and serves no practical purpose :-).
+See http://www.freemint.de for more info.
 
 Packed programs will be byte-identical to the original after uncompression.
 All debug information will be stripped, though.
@@ -320,9 +318,6 @@ Extra options available for this executable format:
 
 =head2 NOTES FOR DOS/SYS
 
-You can only compress plain sys files, sys/exe (two in one)
-combos are not supported.
-
 Compressed programs only work on a 286+.
 
 Packed programs will be byte-identical to the original after uncompression.
@@ -350,11 +345,11 @@ Extra options available for this executable format:
 First of all, it is recommended to use B<UPX> *instead* of B<strip>. strip has
 the very bad habit of replacing your stub with its own (outdated) version.
 Additionally B<UPX> corrects a bug/feature in strip v2.8.x: it
-will fix the 4 KByte aligment of the stub.
+will fix the 4 KByte alignment of the stub.
 
 B<UPX> includes the full functionality of stubify. This means it will
 automatically stubify your COFF files. Use the option B<--coff> to
-disable this behaviour (see below).
+disable this functionality (see below).
 
 B<UPX> automatically handles Allegro packfiles.
 
@@ -385,7 +380,7 @@ Extra options available for this executable format:
 Introduction
 
   Linux/386 support in UPX consists of 3 different executable formats,
-  one optimized for ELF excutables ("linux/elf386"), one optimized
+  one optimized for ELF executables ("linux/elf386"), one optimized
   for shell scripts ("linux/sh386"), and one generic format
   ("linux/386").
 
@@ -413,14 +408,14 @@ General user's overview
   or network I/O.
 
   Depending on the statistics of usage and access, and the relative
-  speeds of CPU, RAM, swap space, /tmp, and filesystem storage, then
+  speeds of CPU, RAM, swap space, /tmp, and file system storage, then
   invoking and running a compressed executable can be faster than
   directly running the corresponding uncompressed program.
-  The operating system might perfrom fewer expensive I/O operations
+  The operating system might perform fewer expensive I/O operations
   to invoke the compressed program.  Paging to or from swap space
-  or /tmp might be faster than paging from the general filesystem.
+  or /tmp might be faster than paging from the general file system.
   ``Medium-sized'' programs which access about 1/3 to 1/2 of their
-  stored program bytes can do particulary well with compression.
+  stored program bytes can do particularly well with compression.
   Small programs tend not to benefit as much because the absolute
   savings is less.  Big programs tend not to benefit proportionally
   because each invocation may use only a small fraction of the program,
@@ -429,7 +424,7 @@ General user's overview
   then compression may win anyway.
 
   Currently, executables compressed by UPX do not share RAM at runtime
-  in the way that executables mapped from a filesystem do.  As a
+  in the way that executables mapped from a file system do.  As a
   result, if the same program is run simultaneously by more than one
   process, then using the compressed version will require more RAM and/or
   swap space.  So, shell programs (bash, csh, etc.)  and ``make''
@@ -518,7 +513,7 @@ The linux/elf386 format decompresses directly into RAM,
 uses only one exec, does not use space in /tmp,
 and does not use /proc.
 
-Linux/elf386 is automatically selected for Linux ELF exectuables.
+Linux/elf386 is automatically selected for Linux ELF executables.
 
 Packed programs will be byte-identical to the original after uncompression.
 
@@ -607,7 +602,7 @@ Extra options available for this executable format:
 Please read the general Linux description first.
 
 The generic linux/386 format decompresses to /tmp and needs
-/proc filesystem support. It starts the decompressed program
+/proc file system support. It starts the decompressed program
 via the execve() syscall.
 
 Linux/386 is only selected if the specialized linux/elf386
@@ -619,11 +614,11 @@ How it works:
 
   For files which are not ELF and not a script for a known "-c" shell,
   UPX uses kernel execve(), which first requires decompressing to a
-  temporary file in the filesystem.  Interestingly -
+  temporary file in the file system.  Interestingly -
   because of the good memory management of the Linux kernel - this
-  often does not introduce a noticable delay, and in fact there
+  often does not introduce a noticeable delay, and in fact there
   will be no disk access at all if you have enough free memory as
-  the entire process takes places within the filesystem buffers.
+  the entire process takes places within the file system buffers.
 
   A compressed executable consists of the UPX stub and an overlay
   which contains the original program in a compressed form.
@@ -649,7 +644,7 @@ Specific drawbacks:
     decompression, but you still need it for the full execution time
     of the program.
 
-  - You must have /proc filesystem support as the stub wants to open
+  - You must have /proc file system support as the stub wants to open
     /proc/<pid>/exe and needs /proc/<pid>/fd/X. This also means that you
     cannot compress programs that are used during the boot sequence
     before /proc is mounted.
@@ -661,7 +656,7 @@ Specific drawbacks:
 
   - Because of temporary decompression to disk the decompression speed
     is not as fast as with the other executable formats. Still, I can see
-    no noticable delay when starting programs like my ~3 MB emacs (which
+    no noticeable delay when starting programs like my ~3 MB emacs (which
     is less than 1 MB when compressed :-).
 
 Extra options available for this executable format:
@@ -677,21 +672,25 @@ Extra options available for this executable format:
 This is the executable format used by the Sony PlayStation (PSone),
 a Mips R3000 based gaming console which is popular since the late '90s.
 Support of this format is very similar to the Atari one, because of
-nostalgic feelings of one of the authors, but this format maybe serves
+nostalgic feelings of one of the authors.
-a practical purpose ;-).
 
-Packed programs will be byte-identical to the original after uncompression.
+Packed programs will be byte-identical to the original after uncompression,
+until further notice.
 
-Maximum uncompressed size: ~1998848 bytes.
+Maximum uncompressed size: ~1.89 / ~7.60 Mbytes.
 
 Notes:
 
+  - UPX creates as default a suitable executable for CD-Mastering
+    and console transfer. For a CD-Master main executable you could also try
+    the special option "--boot-only" as described below.
+
   - Normally the packed files use the same memory areas like the uncompressed
     versions, so they will not override other memory areas while unpacking.
     If this isn't possible UPX will abort showing a 'packed data overlap'
-    error. With the "--force" option UPX will set a few 'bytes higher' loading
+    error. With the "--force" option UPX will relocate the loading address
-    offset for the packed file, but this isn't a real problem if it is a
+    for the packed file, but this isn't a real problem if it is a single or
-    single or boot-only executable.
+    the main executable.
 
 Extra options available for this executable format:
 
@@ -700,14 +699,23 @@ Extra options available for this executable format:
                       the compression ratio in some cases, but usually
                       the default method gives the best results anyway.
 
+  --8-bit             Uses 8 bit size compression [default: 32 bit]
+
+  --8mb-ram           PSone has 8 MB ram available [default: 2 MB]
+
+  --boot-only         This format is for main exes and CD-Mastering only !
+                      It may slightly improve the compression ratio,
+                      decompression routines are faster than default ones.
+                      But it cannot be used for console transfer !
+
   --no-align          This option disables CD mode 2 data sector format
-                      alignment. This will slightly increase the compression
+                      alignment. May slightly improves the compression ratio,
-                      ratio, but the compressed executable will not work
+                      but the compressed executable will not boot from a CD.
-                      when started from a CD.
+                      Use it for console transfer only !
 
 
 
-=head2 NOTES FOR RTM32/PE
+=head2 NOTES FOR RTM32/PE and ARM/PE
 
 Same as win32/pe.
 
@@ -751,15 +759,15 @@ Benefits:
   - Better compression (but note that the kernel was already compressed,
   so the improvement is not as large as with other formats).
   Still, the bytes saved may be essential for special needs like
-  bootdisks.
+  boot disks.
 
      For example, this is what I get for my 2.2.16 kernel:
         1589708  vmlinux
          641073  bzImage        [original]
          560755  bzImage.upx    [compressed by "upx -9"]
 
-  - Much faster decompression at kernel boot time (but decompression
+  - Much faster decompression at kernel boot time (but kernel
-    speed is not really an issue these days).
+    decompression speed is not really an issue these days).
 
 Drawbacks:
 
@@ -798,13 +806,14 @@ Extra options available for this executable format:
 =head2 NOTES FOR WIN32/PE
 
 The PE support in B<UPX> is quite stable now, but probably there are
-still some incompabilities with some files.
+still some incompatibilities with some files.
 
 Because of the way B<UPX> (and other packers for this format) works, you
-can see increased memory usage of your compressed files. If you start
+can see increased memory usage of your compressed files because the whole
-several instances of huge compressed programs you're wasting memory
+program is loaded into memory at startup.
-because the common segements of the program won't get shared
+If you start several instances of huge compressed programs you're
-across the instances.
+wasting memory because the common segments of the program won't
+get shared across the instances.
 On the other hand if you're compressing only smaller programs, or
 running only one instance of larger programs, then this penalty is
 smaller, but it's still there.
@@ -812,12 +821,19 @@ smaller, but it's still there.
 If you're running executables from network, then compressed programs
 will load faster, and require less bandwidth during execution.
 
-DLLs are supported.
+DLLs are supported. But UPX compressed DLLs can not share common data and
+code when they got used by multiple applications. So compressing msvcrt.dll
+is a waste of memory, but compressing the dll plugins of a particular
+application may be a better idea.
 
 Screensavers are supported, with the restriction that the filename
 must end with ".scr" (as screensavers are handled slightly different
 than normal exe files).
 
+UPX compressed PE files have some minor memory overhead (usually in the
+10 - 30 kbytes range) which can be seen by specifying the "-i" command
+line switch during compression.
+
 Extra options available for this executable format:
 
  --compress-exports=0 Don't compress the export section.
@@ -834,9 +850,26 @@ Extra options available for this executable format:
   --compress-icons=1  Compress all but the first icon.
   --compress-icons=2  Compress all icons which are not in the
                       first icon directory. [DEFAULT]
+  --compress-icons=3  Compress all icons.
 
   --compress-resources=0  Don't compress any resources at all.
 
+  --keep-resource=list Don't compress resources specified by the list.
+                      The members of the list are separated by commas.
+                      A list member has the following format: I<type[/name]>.
+                      I<Type> is the type of the resource. Standard types
+                      must be specified as decimal numbers, user types can be
+                      specified by decimal IDs or strings. I<Name> is the
+                      identifier of the resource. It can be a decimal number
+                      or a string. For example:
+
+                      --keep-resource=2/MYBITMAP,5,6/12345
+
+                      UPX won't compress the named bitmap resource "MYBITMAP",
+                      it leaves every dialog (5) resource uncompressed, and
+                      it won't touch the string table resource with identifier
+                      12345.
+
   --force             Force compression even when there is an
                       unexpected value in a header field.
                       Use with care.
@@ -847,7 +880,7 @@ Extra options available for this executable format:
                       address greater or equal to 0x400000. Usually the
                       compressed files becomes smaller, but some files
                       may become larger. Note that the resulting file will
-                      not work under Win32s.
+                      not work under Windows 3.x (Win32s).
                       UPX never strips relocations from a DLL
                       regardless of this option.
 
@@ -893,13 +926,13 @@ Please report all bugs immediately to the authors.
 
 =head1 COPYRIGHT
 
-Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
 
-Copyright (C) 1996-2002 Laszlo Molnar
+Copyright (C) 1996-2007 Laszlo Molnar
 
-Copyright (C) 2000-2002 John F. Reiser
+Copyright (C) 2000-2007 John F. Reiser
 
-Copyright (C) 2002      Jens Medoch
+Copyright (C) 2002-2007 Jens Medoch
 
 This program may be used freely, and you are welcome to
 redistribute it under certain conditions.

patches/patch-elfcode.h

@@ -1,101 +0,0 @@
-The GNU bfd binary file descriptor package, part of the GNU binutils package,
-contains code to recognize an Elf file by looking at fields in the file header.
-Many programs (such as gdb, size, objdump, objcopy, strip and others) use bfd.
-Unfortunately, bfd has been overly strict.  In releases
-   binutils-2.9.1.0.4, binutils-2.9.1.0.23, binutils-2.9.5.0.0,
-   binutils-2.10.1,
-   gdb-4.17, gdb-5.0,
-and probably others,
-bfd does not recognize a file with zero in Elf32_Ehdr.e_shoff, .e_shentsize,
-or .e_shnum, even though the operating system kernel does not care, and many
-bfd clients would work just fine in these cases.
-
-Because of its desire to create small size compressed executables, UPX
-generates and uses Elf files with zero in .e_shoff, .e_shentsizes, and .e_shnum.
-As a result, many widely-distributed instances of gdb, size, objdump, etc.,
-refuse to work on UPX-packed executables.
-
-Here is a patch to bfd/elfcode.h which enables many bfd clients to work
-with UPX-packed executables.  The last two lines of the patch are
-       if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) == -1)
- 	return -1;
-
-
---- elfcode.h.orig	Mon Jun 16 11:45:32 1997
-+++ elfcode.h	Sat Apr 22 10:18:56 2000
-@@ -1,5 +1,5 @@
- /* ELF executable support for BFD.
--   Copyright 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
-+   Copyright 1991, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
- 
-    Written by Fred Fish @ Cygnus Support, from information published
-    in "UNIX System V Release 4, Programmers Guide: ANSI C and
-@@ -517,14 +517,14 @@
-   elf_debug_file (i_ehdrp);
- #endif
- 
--  /* If there is no section header table, we're hosed. */
--  if (i_ehdrp->e_shoff == 0)
-+  /* If there is no section header table, and relocatable, then we're hosed. */
-+  if (i_ehdrp->e_shoff == 0 && i_ehdrp->e_type == ET_REL)
-     goto got_wrong_format_error;
- 
-   /* As a simple sanity check, verify that the what BFD thinks is the
-      size of each section header table entry actually matches the size
--     recorded in the file. */
--  if (i_ehdrp->e_shentsize != sizeof (x_shdr))
-+     recorded in the file, but only if there are any sections. */
-+  if (i_ehdrp->e_shentsize != sizeof (x_shdr) &&  i_ehdrp->e_shnum != 0)
-     goto got_wrong_format_error;
- 
-   ebd = get_elf_backend_data (abfd);
-@@ -579,6 +579,7 @@
-   /* Allocate space for a copy of the section header table in
-      internal form, seek to the section header table in the file,
-      read it in, and convert it to internal form.  */
-+ if (i_ehdrp->e_shnum!=0) {
-   i_shdrp = ((Elf_Internal_Shdr *)
- 	     bfd_alloc (abfd, sizeof (*i_shdrp) * i_ehdrp->e_shnum));
-   elf_elfsections (abfd) = ((Elf_Internal_Shdr **)
-@@ -609,6 +610,7 @@
-       if (! bfd_section_from_shdr (abfd, i_ehdrp->e_shstrndx))
- 	goto got_no_match;
-     }
-+ }
- 
-   /* Read in the program headers.  */
-   if (i_ehdrp->e_phnum == 0)
-@@ -644,6 +646,7 @@
-      bfd_section_from_shdr with it (since this particular strtab is
-      used to find all of the ELF section names.) */
- 
-+ if (i_ehdrp->e_shstrndx != 0) {
-   shstrtab = bfd_elf_get_str_section (abfd, i_ehdrp->e_shstrndx);
-   if (!shstrtab)
-     goto got_no_match;
-@@ -657,6 +660,7 @@
-       if (! bfd_section_from_shdr (abfd, shindex))
- 	goto got_no_match;
-     }
-+ }
- 
-   /* Let the backend double check the format and override global
-      information.  */
-@@ -930,7 +934,7 @@
- {
-   Elf_Internal_Shdr *hdr;
-   Elf_Internal_Shdr *verhdr;
--  long symcount;		/* Number of external ELF symbols */
-+  unsigned long symcount;	/* Number of external ELF symbols */
-   elf_symbol_type *sym;		/* Pointer to current bfd symbol */
-   elf_symbol_type *symbase;	/* Buffer for generated bfd symbols */
-   Elf_Internal_Sym i_sym;
-@@ -978,7 +982,7 @@
-     sym = symbase = NULL;
-   else
-     {
--      long i;
-+      unsigned long i;
- 
-       if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) == -1)
- 	return -1;

src/.cvsignore

@@ -1,19 +0,0 @@
-GNUmakefile
-*.0??
-*.dat
-*.idb
-*.img
-*.map
-*.raw
-*.rel
-*.pdb
-*.upx
-.gdbinit
-.Attic
-.deps
-compress_nrv.*
-upx
-upx_nrv
-upx_nrv.*
-upx_ucl
-upx_ucl.*

src/Makefile

@@ -1,625 +1,88 @@
 #
-# UPX Makefile (GNU make) - works with unix/win32/djgpp2
+# UPX Makefile - needs GNU make 3.80 or better
-#
-# usage:
-#   `make target=linux'             # linux
-#   `make target=djggp2'            # dos32 - djggp2 2.03
-#   `make target=cygwin'            # win32 - cygwin 1.3.x
-#   `make target=mingw32'           # win32 - mingw32
-#   `make target=no-cygwin'         # win32 - mingw32 as included in cygwin 1.3.x
-#   `make target=bcc'               # win32 - Borland C++ 5.5.1
-#   `make target=dmc'               # win32 - Digital Mars C++ 8.30
-#   `make target=vc6'               # win32 - Visual C++ 6.0
-#   `make target=wcc'               # win32 - Watcom C++ 11.0c
-#   `make target=cross-m68k-linux'  # m68k-linux cross compiler
-#   `make target=cross-mingw32'     # i586-mingw32msvc cross compiler
-#   `make target=cross-mint'        # m68k-atari-mint cross compiler
 #
 
-
+MAKEFLAGS += -rR
-# configuration section
-
-ifeq ($(strip $(UCLDIR)),)
-# change this to reflect where the UCL library is
-UCLDIR = $(HOME)/local/src/ucl-1.01
-endif
-
-##target =
-
-DEBUG = 0
-
-
-# -------------------------------------------------------
-# You should not have to change anything below this line.
-# -------------------------------------------------------
-
-SHELL = /bin/sh
-
-
 .SUFFIXES:
-.SUFFIXES: .a .c .cpp .exe .lib .o .obj .rc .res .ttp
+export SHELL = /bin/sh
+override e = $($1) $(EXTRA_$1) $(upx_$1) $($(basename $(notdir $@)).$1)
 
-
+ifndef srcdir
-srcdir = .
+srcdir := $(dir $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))
-top_srcdir = ..
+srcdir := $(shell echo '$(srcdir)' | sed 's,/*$$,,')
-
-VPATH = $(srcdir)
-
-
-# auto-detect the target unless given on the commandline
-ifeq ($(strip $(target)),)
-##target = djgpp2
-ifneq ($(strip $(wildcard /usr/include/linux)),)
-target = linux
 endif
-##ifneq ($(strip $(wildcard /platform/sun4?/kernel/unix)),)
+ifndef top_srcdir
-##target = sparc
+top_srcdir := $(srcdir)/..
-##endif
+endif
+-include $(top_srcdir)/Makevars.global ./Makevars.local
+ifneq ($(srcdir),.)
+##$(info Info: using VPATH . $(srcdir))
+VPATH := . $(srcdir)
 endif
 
-ifeq ($(strip $(target)),)
+ifeq ($(CXX),)
-include please_specify_a_target
+CXX = g++
 endif
-
+ifneq ($(findstring $(firstword $(CXX)),g++),)
-
+USE_GNUC ?= 1
-# util var for use in the rules - basename of the current target
+endif
-override T = $(basename $@)
+ifeq ($(USE_GNUC),1)
-
+CXXFLAGS += -MMD
-
-# /***********************************************************************
-# // object files
-# ************************************************************************/
-
-# these use exceptions & RTTI
-OBJECTS1 = \
-	compress$o except$o file$o lefile$o \
-	filter$o linker$o mem$o msg$o stdcxx$o work$o ui$o \
-	packer$o packerf$o packhead$o packmast$o \
-	p_com$o p_djgpp2$o p_elks$o p_exe$o \
-	p_lx_elf$o p_lx_exc$o p_lx_sep$o p_lx_sh$o \
-	p_ps1$o p_sys$o p_tmt$o p_tos$o \
-	p_unix$o p_vmlinz$o p_w16ne$o p_w32pe$o p_wcle$o
-
-# no exceptions or RTTI
-OBJECTS2 = \
-	filteri$o help$o main$o mygetopt$o snprintf$o util$o \
-	c_init$o c_file$o c_none$o c_screen$o \
-	s_object$o s_djgpp2$o s_vcsa$o s_win32$o
-
-# pure C sources
-OBJECTS3 =
-
-OBJECTS = $(OBJECTS1) $(OBJECTS2) $(OBJECTS3)
-LIBS =
-RESOURCES =
-
-
-# /***********************************************************************
-# // compiler settings
-# ************************************************************************/
-
-###
-### default compiler (gcc under unix)
-###
-
-o = .o
-a = .a
-e =
-
-CC = gcc
-DEFS =
-INCLUDES =
-##INCLUDES = -I. -I$(srcdir)
-CFLAGS_OUTPUT = -o $@
-
-LINK_EXE = $(CXXLD) $(LDFLAGS) -o $@ $^ $(LDLIBS)
-STUBEDIT_EXE =
-STUBIFY_EXE =
-CHMOD_EXE =
-
-# C++ defaults are set later
-CXX =
-CXXLD =
-CXXFLAGS_OUTPUT =
-
-
-###
-### gcc defaults
-###
-
-##CFLAGS_WERROR = -Werror
-CFLAGS_WERROR =
-CFLAGS_W  = $(CFLAGS_WERROR)
-CFLAGS_W += -Wall -W -Wcast-align -Wcast-qual -Wmissing-prototypes -Wpointer-arith -Wshadow -Wwrite-strings
-CFLAGS_M  =
-##CFLAGS_M += -fno-builtin
-##CFLAGS_M += -malign-functions=0 -malign-jumps=0 -malign-loops=0
-##CFLAGS_O  = -Os -fstrict-aliasing
-##CFLAGS_O  = -O2 -fstrict-aliasing
-CFLAGS_O  = -O2 -fno-strict-aliasing
-
-CFLAGS    = $(CFLAGS_W) $(CFLAGS_M) $(CFLAGS_O)
-CXXFLAGS  = $(CFLAGS) -Wsynth -fconserve-space
-CXXFLAGS1 = $(CXXFLAGS)
-##CXXFLAGS1 += -fasynchronous-exceptions
-CXXFLAGS2 = $(CXXFLAGS) -fno-exceptions -fno-rtti
-
 ifeq ($(DEBUG),1)
-DEFS += -DDEBUG
+CXXFLAGS += -O0 -g
-## DEFS += -DTESTING
-endif
-
-ifeq ($(DEBUG),1)
-LDFLAGS = -g
 else
-LDFLAGS = -s
+CXXFLAGS += -O2
 endif
-LDFLAGS += -Wl,-Map,$T.map
+CXXFLAGS += -Wall -W -Wcast-align -Wcast-qual -Wpointer-arith -Wwrite-strings -Werror
-LDLIBS = -lz
+##CXXFLAGS += -Wshadow
-LIBDIRS =
-DOS_LDLIBS =
-DOS_LIBDIRS =
-
-
-###
-### compression library
-###
-
-UCLDIR:=$(strip $(subst \,/,$(UCLDIR)))
-NRVDIR:=$(strip $(subst \,/,$(NRVDIR)))
-u = ucl
-U = UCL
-upx_exe_tail =
-include $(srcdir)/Makefile.inc
-ifneq ($(strip $(wildcard $(NRVDIR)/include/nrv)),)
-  u = nrv
-  U = NRV
-  upx_exe_tail = _$(u)
-  include $(srcdir)/Makefile.inc
 endif
-upx_exe = upx$(upx_exe_tail)$(e)
+CPPFLAGS += $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)
+CXXLD ?= $(CXX)
 
-override tmp := -Wl,--rpath,
+exeext ?= .out
-LDRPATH := $(addprefix $(tmp),$(LIBDIRS))
+libext ?= .a
-LIBDIRS += .
+objext ?= .o
-LDLIBDIRS := $(addprefix -L,$(LIBDIRS))
 
-##LDFLAGS += $(LDRPATH)
+upx_SOURCES := $(wildcard $(srcdir)/*.cpp)
-LDFLAGS += $(LDLIBDIRS)
+upx_OBJECTS := $(notdir $(upx_SOURCES:.cpp=$(objext)))
 
-
+# we need UCL and zlib - you can set envvar UPX_UCLDIR
-###
+ifneq ($(wildcard $(UPX_UCLDIR)/include/ucl/ucl.h),)
-### Linux
+INCLUDES += -I$(UPX_UCLDIR)/include
-###
+LIBS += $(addprefix -L,$(dir $(wildcard $(UPX_UCLDIR)/libucl$(libext) $(UPX_UCLDIR)/src/.libs/libucl$(libext))))
-
-ifeq ($(target),linux)
-override arch := $(shell uname -m | sed -e 's/^i[3456789]86$$/i386/')
-DEFS += '-DUPX_CONFIG_H="config_h/linux.h"'
-DEFS += -D_FILE_OFFSET_BITS=64
-LDLIBS += -lmcheck
-ifeq ($(arch),i386)
-  CC += -march=i386 -mcpu=i586
-  ##CFLAGS_M += -mno-schedule-prologue
 endif
-##CFLAGS_WERROR = -Werror
+LIBS += -lucl -lz
-
+# you should set envvar UPX_LZMADIR to point to your unpacked lzma443.tar.bz2
-ifeq (1,2) 	# checkergcc
+ifneq ($(wildcard $(UPX_LZMADIR)/C/7zip/.),)
-  CC = checkergcc
+DEFS += -DWITH_LZMA=1
-  CXX = checkerg++
+INCLUDES += -I$(UPX_LZMADIR)
-else
-ifeq ($(DEBUG),1)
-  ##CFLAGS += -O0 -gstabs+3
-  ##CFLAGS += -O0 -gdwarf-2
-  CFLAGS += -O0 -g
-else
-  ##LDFLAGS += -static
-  STUBEDIT_EXE = objcopy -S -R .comment -R .note $@
-  ifeq ($(arch),i386)
-    STUBIFY_EXE = perl $(srcdir)/stub/scripts/brandelf.pl $@
-    CHMOD_EXE = chmod 755 $@
-  endif
-endif
-endif
-
-endif	# linux
-
-
-###
-### Linux cross compilers
-###
-
-ifeq ($(target),cross-m68k-linux)
-CC = m68k-linux-gcc
-DEFS += '-DUPX_CONFIG_H="config_h/linux.h"'
-##LDLIBS += -lmcheck
-endif	# cross-m68k-linux
-
-
-###
-### sparc-sun-solaris2.8
-###
-
-ifeq ($(target),sparc)
-CC = gcc
-DEFS += '-DUPX_CONFIG_H="config_h/sparc_sun_solaris28.h"'
-endif	# sparc
-
-
-ifeq ($(target),XXX-sparc)
-DEFS += '-DUPX_CONFIG_H="config_h/sparc_sun_solaris28.h"'
-INCLUDES += -I/home/ethmola/local/include
-
-ifeq (1,2) # native compiler
-  CFLAGS = -O0 -g
-  CXXFLAGS1 =
-  CXXFLAGS2 =
-  DEFS += -DUSE_STDNAMESPACE
-else # gcc
-  CFLAGS += -O0 -gstabs+
-endif
-
-ifeq (1,2) # purify
-  DEFS += -D__PURIFY__
-  CXXLD := purify $(CXXLD)
-endif
-
-endif	# XXX-sparc
-
-
-###
-### Atari cross compiler
-###
-
-ifeq ($(target),cross-mint)
-e = .ttp
-CC = m68k-atari-mint-gcc
-CC += -m68000
-endif
-
-ifeq ($(target),cross-mint-m68040)
-e = .ttp
-CC = m68k-atari-mint-gcc
-CC += -m68040
-endif
-
-ifeq ($(target),cross-mint-m68020-60)
-e = .ttp
-CC = m68k-atari-mint-gcc
-CC += -m68020-60 -m68881
 endif
 
 
-###
+all: upx$(exeext)
-### djgpp2
+.DELETE_ON_ERROR: upx$(exeext) $(upx_OBJECTS)
-###
 
-ifeq ($(target),djgpp2)
+upx$(exeext): $(upx_OBJECTS) $(upx_DEPENDENCIES)
-e = .exe
+	$($(notdir $@).PRE_LINK_STEP)
-CC += -march=i386 -mcpu=i586
+	$(strip $(CXXLD) $(call e,CPPFLAGS) $(call e,CXXFLAGS) $(call e,LDFLAGS) -o $@ $(upx_OBJECTS) $(call e,LDADD) $(call e,LIBS))
-##CFLAGS_M += -mno-schedule-prologue
+	$($(notdir $@).POST_LINK_STEP)
-CFLAGS_WERROR = -Werror
+
-STUBEDIT_EXE = stubedit $@ bufsize=0xfc00
+%.o : %.cpp
-ifneq ($(strip $(wildcard $(DJDIR)/bin/mfxdjstubify.ex[eE])),)
+	$(strip $(CXX) $(call e,CPPFLAGS) $(call e,CXXFLAGS) -o $@ -c $<)
-ifneq ($(strip $(wildcard $(DJDIR)/bin/cwsdstub.ex[eE])),)
-STUBIFY_EXE = mfxdjstubify -v -s $(DJDIR)/bin/cwsdstub.exe $(upx_exe)
-endif
-endif
-endif	# djgpp2
 
 
-###
+ifeq ($(USE_GNUC),1)
-### cygwin / mingw32
+##compress_lzma$(objext) : CXXFLAGS += -O3 -fomit-frame-pointer
-###
+compress_lzma$(objext) : CXXFLAGS += -Wno-cast-qual
-
+compress_lzma$(objext) : CXXFLAGS += -Wno-non-virtual-dtor
-ifeq ($(target),cygwin)
+compress_lzma$(objext) : CXXFLAGS += -Wno-shadow
-e = .exe
+compress_lzma$(objext) : CXXFLAGS += -Wno-unused
-CC += -march=i386 -mcpu=i586
+##compress_lzma$(objext) : CXXFLAGS += -Wno-error
-CXXLD = g++
-##CFLAGS_M += -mno-schedule-prologue
-endif
-
-ifeq ($(target),mingw32)
-e = .exe
-CC = gcc -mno-cygwin
-CC += -march=i386 -mcpu=i586
-CXXLD = g++ -mno-cygwin
-##CFLAGS_M += -mno-schedule-prologue
-endif
-
-# mingw32 as included in cygwin
-ifeq ($(target),no-cygwin)
-e = .exe
-CC = gcc -mno-cygwin
-CC += -march=i386 -mcpu=i586
-CXXLD = g++ -mno-cygwin
-##CFLAGS_M += -mno-schedule-prologue
-endif
-
-# mingw32 cross compiler
-ifeq ($(target),cross-mingw32)
-e = .exe
-CC = i586-mingw32msvc-gcc
-CC += -march=i386 -mcpu=i586
-CXXLD = i586-mingw32msvc-g++
-##CFLAGS_M += -mno-schedule-prologue
 endif
 
 
-###
+mostlyclean clean distclean maintainer-clean:
-### Borland C++ 5.5.1
+	rm -f *.d *.map *.o *.obj *.res upx.exe upx.out upx.ttp upx$(exeext)
-###
 
-ifeq ($(target),bcc)
+-include *.d
-o = .obj
+.PHONY: all mostlyclean clean distclean maintainer-clean
-a = .lib
-e = .exe
-CC = bcc32 -q
-CFLAGS = -w -w-aus -g1
-CXXFLAGS1 = $(CFLAGS)
-CXXFLAGS2 = $(CFLAGS) -x- -xd- -RT-
-CFLAGS_OUTPUT = -o$@
-LDFLAGS =
-LDLIBS = $(DOS_LDLIBS) zlib114.lib
-
-ifneq ($(strip $(DOS_LIBDIRS)),)
-LIB := $(DOS_LIBDIRS);$(LIB)
-endif
-export LIB
-
-ifeq ($(DEBUG),1)
-  CFLAGS += -Od -d
-else
-  CFLAGS += -O2 -d
-endif
-
-LINK_EXE = $(CXXLD) $(LDFLAGS) -e$@ $^ $(LDLIBS)
-
-endif	# bcc
-
-
-###
-### Digital Mars C++ 8.30
-###
-
-ifeq ($(target),dmc)
-o = .obj
-a = .lib
-e = .exe
-CC = dmc -mn
-CFLAGS = -w- -wx
-CXXFLAGS1 = $(CFLAGS) -Aa -Ab -Ae -Ar
-CXXFLAGS2 = $(CFLAGS) -Aa -Ab
-CFLAGS_OUTPUT = -o$@
-LDFLAGS =
-LDLIBS = $(DOS_LDLIBS)
-
-ifneq ($(strip $(DOS_LIBDIRS)),)
-LIB := $(DOS_LIBDIRS);$(LIB)
-endif
-export LIB
-
-ifeq ($(DEBUG),1)
-  CFLAGS += -o- -g -s
-else
-  CFLAGS += -o
-endif
-
-LINK_EXE = $(CXXLD) $(LDFLAGS) -o$@ $^ $(LDLIBS)
-
-endif	# dmc
-
-
-###
-### Visual C++ 6 (aka Microsoft C/C++ Compiler 12.00)
-###
-
-ifeq ($(target),vc6)
-o = .obj
-a = .lib
-e = .exe
-CC = cl -nologo
-CFLAGS = -W4 -WX
-CXXFLAGS1 = $(CFLAGS) -EHac -GR
-CXXFLAGS2 = $(CFLAGS)
-LDFLAGS =
-LINK_LDFLAGS = /link /map:$T.map
-
-ifneq ($(strip $(DOS_LIBDIRS)),)
-LIB := $(DOS_LIBDIRS);$(LIB)
-endif
-export LIB
-
-ifeq (1,2)
-  # statically link libc.lib
-  CC += -ML
-  LDLIBS = $(u)_s.lib setargv.obj
-else
-  # link against msvcrt.dll
-  CC += -MD
-  LDLIBS = $(DOS_LDLIBS) zlib114.lib setargv.obj
-endif
-ifeq ($(DEBUG),1)
-  CFLAGS += -Od -ZI
-  LINK_LDFLAGS += /debug
-else
-  CFLAGS += -O2 -GF
-  LINK_LDFLAGS += /release
-endif
-RESOURCES = upx.res
-
-##LINK_LDFLAGS += /verbose
-LINK_EXE = $(CXXLD) $(LDFLAGS) -Fe$@ $^ $(LDLIBS) $(LINK_LDFLAGS)
-
-endif	# vc6
-
-
-###
-### Watcom C++ 11.0c
-###
-
-ifeq ($(target),wcc)
-o = .obj
-a = .lib
-e = .exe
-CC = wcl386 -zq -bt=nt -mf -5r
-CFLAGS = -zc -w5 -we
-CXXFLAGS1 = $(CFLAGS) -xs -xr
-CXXFLAGS2 = $(CFLAGS)
-CFLAGS_OUTPUT = -fo=$@
-LDFLAGS = -k0x100000 -fm
-LDLIBS = $(DOS_LDLIBS)
-
-INCLUDES:=$(strip $(subst /,\\,$(INCLUDES)))
-ifeq (1,2)
-  WCL386:=$(INCLUDES)
-  export WCL386
-  INCLUDES:=
-endif
-
-ifneq ($(strip $(DOS_LIBDIRS)),)
-LIB := $(DOS_LIBDIRS);$(LIB)
-endif
-export LIB
-
-ifeq ($(DEBUG),1)
-  CFLAGS +=
-else
-  # note: it seems that the optimizer is generating bad code with `-ox'
-  CFLAGS += -olr
-endif
-
-LINK_EXE = $(CXXLD) $(LDFLAGS) -fe=$@ $^ $(LDLIBS)
-
-endif	# wcc
-
-
-# /***********************************************************************
-# // malloc debuggers and memory checkers - somewhat obsolete, use valgrind
-# ************************************************************************/
-
-ifeq (1,2)
-  # compile in extra valgrind support
-  CFLAGS += -DWITH_VALGRIND
-endif
-
-ifeq (1,2)
-  LDLIBS += -lefence
-endif
-
-ifeq (1,2)
-  CFLAGS += -DWITH_DMALLOC
-  LDLIBS += -ldmalloc
-endif
-
-ifeq (1,2)
-  CFLAGS += -DWITH_GC -DLINUX_THREADS -D_REENTRANT
-  LDLIBS += -lgc -lpthread
-  # only needed when using -static:
-  ##LDFLAGS += -Wl,-defsym,_DYNAMIC=0
-endif
-
-
-# /***********************************************************************
-# // finish settings
-# ************************************************************************/
-
-# C++ defaults
-ifeq ($(strip $(CXX)),)
-  ifeq ($(strip $(CC)),gcc)
-    CXX = g++
-  else
-    CXX = $(CC)
-  endif
-endif
-ifeq ($(strip $(CXXLD)),)
-  CXXLD = $(CXX)
-endif
-ifeq ($(strip $(CXXFLAGS_OUTPUT)),)
-  CXXFLAGS_OUTPUT = $(CFLAGS_OUTPUT)
-endif
-
-
-# extra flags
-DEFS      += $(EXTRA_DEFS)
-CFLAGS    += $(EXTRA_CFLAGS)
-CFLAGS_W  += $(EXTRA_CFLAGS_W)
-CFLAGS_M  += $(EXTRA_CFLAGS_M)
-CFLAGS_O  += $(EXTRA_CFLAGS_O)
-CXXFLAGS1 += $(EXTRA_CXXFLAGS1)
-CXXFLAGS2 += $(EXTRA_CXXFLAGS2)
-LDFLAGS   += $(EXTRA_LDFLAGS)
-LDLIBS    += $(EXTRA_LDLIBS)
-
-
-# To better deal with asynchronous exceptions we compile all source
-# files with exception handling and RTTI enabled - the size overhead
-# is negligible.
-CXXFLAGS2 = $(CXXFLAGS1)
-
-
-# /***********************************************************************
-# // main targets
-# ************************************************************************/
-
-all: $(upx_exe)
-
-.PHONY: all mostlyclean clean distclean maintainer-clean untabify tags
-
-$(upx_exe): $(OBJECTS) $(LIBS) $(RESOURCES)
-	$(LINK_EXE)
-	$(STUBEDIT_EXE)
-	$(STUBIFY_EXE)
-	$(CHMOD_EXE)
-
-
-mostlyclean:
-	-rm -f *.d *.err *.i *.log *.map *~ gdb-trans*
-
-clean: mostlyclean
-	-rm -f *.a *.lib *.o *.obj *.res *.tds tags TAGS ID
-	-rm -f *.idb *.pdb
-	-rm -f $(upx_exe) upx upx.exe upx.ttp upx_nrv upx_nrv.exe upx_nrv.ttp upx_ucl upx_ucl.exe upx_ucl.ttp
-	-rm -rf .deps
-
-distclean: clean
-
-maintainer-clean: distclean
-
-
-untabify:
-	mfxtu -d4 -t *.h *.cpp *.ch
-	mfxtu -d8 -t stub/[ln]*.asm stub/*.ash stub/*.[cs]
-
-tags TAGS:
-	ctags *.h *.cpp *.ch
-
-ID:
-	mkid *.h *.cpp *.ch
-
-
-# /***********************************************************************
-# // rules
-# ************************************************************************/
-
-%$o : %.c
-	$(CC) $(DEFS) $(INCLUDES) $(CFLAGS) $(CFLAGS_OUTPUT) -c $<
-
-%$o : %.cpp
-	$(CXX) $(DEFS) $(INCLUDES) $(CXXFLAGS1) $(CXXFLAGS_OUTPUT) -c $<
-
-ifneq ($(strip $(OBJECTS2)),)
-$(OBJECTS2): %$o : %.cpp
-	$(CXX) $(DEFS) $(INCLUDES) $(CXXFLAGS2) $(CXXFLAGS_OUTPUT) -c $<
-endif
-
-%.res : %.rc
-	rc -l 0x409 -fo$@ $<
-
-
-# /***********************************************************************
-# // dependencies
-# ************************************************************************/
-
-include $(srcdir)/Makefile.dep
-
-# vi:nowrap

src/Makefile.dep

@@ -1,16 +0,0 @@
-
-# /***********************************************************************
-# // automated dependencies
-# ************************************************************************/
-
-CFLAGS   += -Wp,-MMD,.deps/$(*F).pp
-
-ifeq ($(strip $(wildcard .deps)),)
-  DEPS_MAGIC := $(shell mkdir .deps > /dev/null 2>&1 || :)
-else
-  DEP_FILES := $(wildcard .deps/*.pp)
-  ifneq ($(strip $(DEP_FILES)),)
-    include $(DEP_FILES)
-  endif
-endif
-

src/Makefile.inc

@@ -1,39 +0,0 @@
-UDIR := $($(U)DIR)
-
-ifneq ($(strip $(wildcard $(UDIR)/include)),) # { include
-DEFS += -DWITH_$(U)
-INCLUDES += -I$(UDIR)/include
-
-ifneq ($(strip $(wildcard $(UDIR)/build/$(target)/src/.libs)),)
-LIBDIRS += $(UDIR)/build/$(target)/src/.libs
-endif
-ifneq ($(strip $(wildcard $(UDIR)/src/.libs)),)
-LIBDIRS += $(UDIR)/src/.libs
-endif
-ifeq ($(DEBUG),1)
-ifneq ($(strip $(wildcard $(UDIR)/build/debug/src/.libs)),)
-LIBDIRS += $(UDIR)/build/debug/src/.libs
-endif
-endif
-ifneq ($(strip $(wildcard $(UDIR)/build/release/src/.libs)),)
-LIBDIRS += $(UDIR)/build/release/src/.libs
-endif
-ifneq ($(strip $(wildcard $(UDIR)/build/src/.libs)),)
-LIBDIRS += $(UDIR)/build/src/.libs
-endif
-ifneq ($(strip $(wildcard $(UDIR))),)
-LIBDIRS += $(UDIR)
-DOS_LIBDIRS := $(DOS_LIBDIRS);$(UDIR)
-endif
-
-LDLIBS += -l$(u)
-DOS_LDLIBS += $(u).lib
-
-
-DEFS := $(DEFS)
-INCLUDES := $(INCLUDES)
-LIBDIRS := $(LIBDIRS)
-LDLIBS := $(LDLIBS)
-DOS_LDLIBS := $(DOS_LDLIBS)
-
-endif # } include

src/bele.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -34,132 +34,147 @@
 // core
 **************************************************************************/
 
-inline unsigned get_be16(const void *bb)
+inline unsigned get_be16(const void *p)
 {
-    const upx_bytep b = (const upx_bytep) bb;
+#if defined(ACC_UA_GET_BE16)
-    unsigned v;
+    return ACC_UA_GET_BE16(p);
-    v  = (unsigned) b[1] <<  0;
-    v |= (unsigned) b[0] <<  8;
-    return v;
-}
-
-inline void set_be16(void *bb, unsigned v)
-{
-    upx_bytep b = (upx_bytep) bb;
-    b[1] = (unsigned char) (v >>  0);
-    b[0] = (unsigned char) (v >>  8);
-}
-
-
-inline unsigned get_be24(const void *bb)
-{
-    const upx_bytep b = (const upx_bytep) bb;
-    unsigned v;
-    v  = (unsigned) b[2] <<  0;
-    v |= (unsigned) b[1] <<  8;
-    v |= (unsigned) b[0] << 16;
-    return v;
-}
-
-inline void set_be24(void *bb, unsigned v)
-{
-    upx_bytep b = (upx_bytep) bb;
-    b[2] = (unsigned char) (v >>  0);
-    b[1] = (unsigned char) (v >>  8);
-    b[0] = (unsigned char) (v >> 16);
-}
-
-
-inline unsigned get_be32(const void *bb)
-{
-    const upx_bytep b = (const upx_bytep) bb;
-    unsigned v;
-    v  = (unsigned) b[3] <<  0;
-    v |= (unsigned) b[2] <<  8;
-    v |= (unsigned) b[1] << 16;
-    v |= (unsigned) b[0] << 24;
-    return v;
-}
-
-inline void set_be32(void *bb, unsigned v)
-{
-    upx_bytep b = (upx_bytep) bb;
-    b[3] = (unsigned char) (v >>  0);
-    b[2] = (unsigned char) (v >>  8);
-    b[1] = (unsigned char) (v >> 16);
-    b[0] = (unsigned char) (v >> 24);
-}
-
-
-inline unsigned get_le16(const void *bb)
-{
-#if defined(__i386__)
-    return * (const unsigned short *) bb;
 #else
-    const upx_bytep b = (const upx_bytep) bb;
+    return acc_ua_get_be16(p);
-    unsigned v;
-    v  = (unsigned) b[0] <<  0;
-    v |= (unsigned) b[1] <<  8;
-    return v;
 #endif
 }
 
-inline void set_le16(void *bb, unsigned v)
+inline void set_be16(void *p, unsigned v)
 {
-#if defined(__i386__)
+#if defined(ACC_UA_SET_BE16)
-    (* (unsigned short *) bb) = (unsigned short) (v & 0xffff);
+    ACC_UA_SET_BE16(p, v);
 #else
-    upx_bytep b = (upx_bytep) bb;
+    acc_ua_set_be16(p, v);
-    b[0] = (unsigned char) (v >>  0);
-    b[1] = (unsigned char) (v >>  8);
 #endif
 }
 
-
+inline unsigned get_be24(const void *p)
-inline unsigned get_le24(const void *bb)
 {
-    const upx_bytep b = (const upx_bytep) bb;
+#if defined(ACC_UA_GET_BE24)
-    unsigned v;
+    return ACC_UA_GET_BE24(p);
-    v  = (unsigned) b[0] <<  0;
-    v |= (unsigned) b[1] <<  8;
-    v |= (unsigned) b[2] << 16;
-    return v;
-}
-
-inline void set_le24(void *bb, unsigned v)
-{
-    upx_bytep b = (upx_bytep) bb;
-    b[0] = (unsigned char) (v >>  0);
-    b[1] = (unsigned char) (v >>  8);
-    b[2] = (unsigned char) (v >> 16);
-}
-
-
-inline unsigned get_le32(const void *bb)
-{
-#if defined(__i386__)
-    return * (const unsigned *) bb;
 #else
-    const upx_bytep b = (const upx_bytep) bb;
+    return acc_ua_get_be24(p);
-    unsigned v;
-    v  = (unsigned) b[0] <<  0;
-    v |= (unsigned) b[1] <<  8;
-    v |= (unsigned) b[2] << 16;
-    v |= (unsigned) b[3] << 24;
-    return v;
 #endif
 }
 
-inline void set_le32(void *bb, unsigned v)
+inline void set_be24(void *p, unsigned v)
 {
-#if defined(__i386__)
+#if defined(ACC_UA_SET_BE24)
-    (* (unsigned *) bb) = v;
+    ACC_UA_SET_BE24(p, v);
 #else
-    upx_bytep b = (upx_bytep) bb;
+    acc_ua_set_be24(p, v);
-    b[0] = (unsigned char) (v >>  0);
+#endif
-    b[1] = (unsigned char) (v >>  8);
+}
-    b[2] = (unsigned char) (v >> 16);
+
-    b[3] = (unsigned char) (v >> 24);
+inline unsigned get_be32(const void *p)
+{
+#if defined(ACC_UA_GET_BE32)
+    return ACC_UA_GET_BE32(p);
+#else
+    return acc_ua_get_be32(p);
+#endif
+}
+
+inline void set_be32(void *p, unsigned v)
+{
+#if defined(ACC_UA_SET_BE32)
+    ACC_UA_SET_BE32(p, v);
+#else
+    acc_ua_set_be32(p, v);
+#endif
+}
+
+inline acc_uint64l_t get_be64(const void *p)
+{
+#if defined(ACC_UA_GET_BE64)
+    return ACC_UA_GET_BE64(p);
+#else
+    return acc_ua_get_be64(p);
+#endif
+}
+
+inline void set_be64(void *p, acc_uint64l_t v)
+{
+#if defined(ACC_UA_SET_BE64)
+    ACC_UA_SET_BE64(p, v);
+#else
+    acc_ua_set_be64(p, v);
+#endif
+}
+
+inline unsigned get_le16(const void *p)
+{
+#if defined(ACC_UA_GET_LE16)
+    return ACC_UA_GET_LE16(p);
+#else
+    return acc_ua_get_le16(p);
+#endif
+}
+
+inline void set_le16(void *p, unsigned v)
+{
+#if defined(ACC_UA_SET_LE16)
+    ACC_UA_SET_LE16(p, v);
+#else
+    acc_ua_set_le16(p, v);
+#endif
+}
+
+inline unsigned get_le24(const void *p)
+{
+#if defined(ACC_UA_GET_LE24)
+    return ACC_UA_GET_LE24(p);
+#else
+    return acc_ua_get_le24(p);
+#endif
+}
+
+inline void set_le24(void *p, unsigned v)
+{
+#if defined(ACC_UA_SET_LE24)
+    ACC_UA_SET_LE24(p, v);
+#else
+    acc_ua_set_le24(p, v);
+#endif
+}
+
+inline unsigned get_le32(const void *p)
+{
+#if defined(ACC_UA_GET_LE32)
+    return ACC_UA_GET_LE32(p);
+#else
+    return acc_ua_get_le32(p);
+#endif
+}
+
+inline void set_le32(void *p, unsigned v)
+{
+#if defined(ACC_UA_SET_LE32)
+    ACC_UA_SET_LE32(p, v);
+#else
+    acc_ua_set_le32(p, v);
+#endif
+}
+
+inline acc_uint64l_t get_le64(const void *p)
+{
+#if defined(ACC_UA_GET_LE64)
+    return ACC_UA_GET_LE64(p);
+#else
+    return acc_ua_get_le64(p);
+#endif
+}
+
+inline void set_le64(void *p, acc_uint64l_t v)
+{
+#if defined(ACC_UA_SET_LE64)
+    ACC_UA_SET_LE64(p, v);
+#else
+    acc_ua_set_le64(p, v);
 #endif
 }
 
@@ -168,122 +183,270 @@ inline void set_le32(void *bb, unsigned v)
 // get signed values, i.e. sign-extend
 **************************************************************************/
 
-inline int sign_extend(int v, int bits)
+inline int sign_extend(unsigned v, unsigned bits)
 {
-    const int sign_bit = 1 << (bits - 1);
+    const unsigned sign_bit = 1u << (bits - 1);
-    v |= -(v & sign_bit);
+    v &= sign_bit | (sign_bit - 1);
-    return v;
+    //v = (v ^ sign_bit) - sign_bit;
+    v |= 0 - (v & sign_bit);
+    return (int) v;
 }
 
-inline int get_be16_signed(const void *bb)
+inline acc_int64l_t sign_extend(acc_uint64l_t v, unsigned bits)
 {
-    int v = get_be16(bb);
+    const acc_uint64l_t sign_bit = ACC_UINT64_C(1) << (bits - 1);
+    v &= sign_bit | (sign_bit - 1);
+    //v = (v ^ sign_bit) - sign_bit;
+    v |= 0 - (v & sign_bit);
+    return (acc_int64l_t) v;
+}
+
+inline int get_be16_signed(const void *p)
+{
+    unsigned v = get_be16(p);
     return sign_extend(v, 16);
 }
 
-inline int get_be24_signed(const void *bb)
+inline int get_be24_signed(const void *p)
 {
-    int v = get_be24(bb);
+    unsigned v = get_be24(p);
     return sign_extend(v, 24);
 }
 
-inline int get_be32_signed(const void *bb)
+inline int get_be32_signed(const void *p)
 {
-    int v = get_be32(bb);
+    unsigned v = get_be32(p);
     return sign_extend(v, 32);
 }
 
-inline int get_le16_signed(const void *bb)
+inline acc_int64l_t get_be64_signed(const void *p)
 {
-    int v = get_le16(bb);
+    acc_uint64l_t v = get_be64(p);
+    return sign_extend(v, 64);
+}
+
+inline int get_le16_signed(const void *p)
+{
+    unsigned v = get_le16(p);
     return sign_extend(v, 16);
 }
 
-inline int get_le24_signed(const void *bb)
+inline int get_le24_signed(const void *p)
 {
-    int v = get_le24(bb);
+    unsigned v = get_le24(p);
     return sign_extend(v, 24);
 }
 
-inline int get_le32_signed(const void *bb)
+inline int get_le32_signed(const void *p)
 {
-    int v = get_le32(bb);
+    unsigned v = get_le32(p);
     return sign_extend(v, 32);
 }
 
+inline acc_int64l_t get_le64_signed(const void *p)
+{
+    acc_uint64l_t v = get_le64(p);
+    return sign_extend(v, 64);
+}
+
+
+/*************************************************************************
+// swab (bswap)
+**************************************************************************/
+
+inline unsigned acc_swab16(unsigned v)
+{
+    return ((v & 0x00ff) << 8) |
+           ((v & 0xff00) >> 8);
+}
+
+inline unsigned acc_swab32(unsigned v)
+{
+    return ((v & 0x000000ff) << 24) |
+           ((v & 0x0000ff00) <<  8) |
+           ((v & 0x00ff0000) >>  8) |
+           ((v & 0xff000000) >> 24);
+}
+
+
+inline unsigned acc_swab16p(const acc_uint16e_t *p)
+{
+    return acc_swab16(*p);
+}
+
+inline unsigned acc_swap32p(const acc_uint32e_t *p)
+{
+    return acc_swab32(*p);
+}
+
+
+inline void acc_swab16s(acc_uint16e_t *p)
+{
+    *p = acc_swab16(*p);
+}
+
+inline void acc_swab32s(acc_uint32e_t *p)
+{
+    *p = acc_swab32(*p);
+}
+
+
+inline void acc_ua_swab16s(void *p)
+{
+    set_be16(p, get_le16(p));
+}
+
+inline void acc_ua_swab32s(void *p)
+{
+    set_be32(p, get_le32(p));
+}
+
 
 /*************************************************************************
 // classes for portable unaligned access
+//
+// Important: these classes must be PODs (Plain Old Data), i.e. no
+//   constructor, no destructor, no virtual functions and no default
+//   assignment operator, and all fields must be public(!).
+//
+// [Actually we _can_ use a safe non-POD subset, but for this we need
+//  to have gcc bug 17519 fixed - see http://gcc.gnu.org/PR17519 ]
 **************************************************************************/
 
-class BE16
+struct BE16
 {
     unsigned char d[2];
 
-public:
+    //inline BE16() { }
-    BE16& operator =  (const BE16 &v) { memcpy(d, v.d, sizeof(d)); return *this; }
+    //BE16(unsigned v) { set_be16(d, v); }
 
-    BE16& operator =  (unsigned v)    { set_be16(d, v); return *this; }
+    BE16& operator =  (unsigned v) { set_be16(d, v); return *this; }
-    BE16& operator += (unsigned v)    { set_be16(d, get_be16(d) + v); return *this; }
+    BE16& operator += (unsigned v) { set_be16(d, get_be16(d) + v); return *this; }
-    BE16& operator -= (unsigned v)    { set_be16(d, get_be16(d) - v); return *this; }
+    BE16& operator -= (unsigned v) { set_be16(d, get_be16(d) - v); return *this; }
-    BE16& operator &= (unsigned v)    { set_be16(d, get_be16(d) & v); return *this; }
+    BE16& operator *= (unsigned v) { set_be16(d, get_be16(d) * v); return *this; }
-    BE16& operator |= (unsigned v)    { set_be16(d, get_be16(d) | v); return *this; }
+    BE16& operator /= (unsigned v) { set_be16(d, get_be16(d) / v); return *this; }
+    BE16& operator &= (unsigned v) { set_be16(d, get_be16(d) & v); return *this; }
+    BE16& operator |= (unsigned v) { set_be16(d, get_be16(d) | v); return *this; }
+    BE16& operator ^= (unsigned v) { set_be16(d, get_be16(d) ^ v); return *this; }
+    BE16& operator <<= (unsigned v) { set_be16(d, get_be16(d) << v); return *this; }
+    BE16& operator >>= (unsigned v) { set_be16(d, get_be16(d) >> v); return *this; }
 
-    operator const unsigned () const  { return get_be16(d); }
+    operator unsigned () const  { return get_be16(d); }
 }
 __attribute_packed;
 
 
-class BE32
+struct BE32
 {
     unsigned char d[4];
 
-public:
+    //inline BE32() { }
-    BE32& operator =  (const BE32 &v) { memcpy(d, v.d, sizeof(d)); return *this; }
+    //BE32(unsigned v) { set_be32(d, v); }
 
-    BE32& operator =  (unsigned v)    { set_be32(d, v); return *this; }
+    BE32& operator =  (unsigned v) { set_be32(d, v); return *this; }
-    BE32& operator += (unsigned v)    { set_be32(d, get_be32(d) + v); return *this; }
+    BE32& operator += (unsigned v) { set_be32(d, get_be32(d) + v); return *this; }
-    BE32& operator -= (unsigned v)    { set_be32(d, get_be32(d) - v); return *this; }
+    BE32& operator -= (unsigned v) { set_be32(d, get_be32(d) - v); return *this; }
-    BE32& operator &= (unsigned v)    { set_be32(d, get_be32(d) & v); return *this; }
+    BE32& operator *= (unsigned v) { set_be32(d, get_be32(d) * v); return *this; }
-    BE32& operator |= (unsigned v)    { set_be32(d, get_be32(d) | v); return *this; }
+    BE32& operator /= (unsigned v) { set_be32(d, get_be32(d) / v); return *this; }
+    BE32& operator &= (unsigned v) { set_be32(d, get_be32(d) & v); return *this; }
+    BE32& operator |= (unsigned v) { set_be32(d, get_be32(d) | v); return *this; }
+    BE32& operator ^= (unsigned v) { set_be32(d, get_be32(d) ^ v); return *this; }
+    BE32& operator <<= (unsigned v) { set_be32(d, get_be32(d) << v); return *this; }
+    BE32& operator >>= (unsigned v) { set_be32(d, get_be32(d) >> v); return *this; }
 
-    operator const unsigned () const  { return get_be32(d); }
+    operator unsigned () const  { return get_be32(d); }
 }
 __attribute_packed;
 
 
-class LE16
+struct BE64
+{
+    unsigned char d[8];
+
+    //inline BE64() { }
+    //BE64(acc_uint64l_t v) { set_be64(d, v); }
+
+    BE64& operator =  (acc_uint64l_t v) { set_be64(d, v); return *this; }
+    BE64& operator += (acc_uint64l_t v) { set_be64(d, get_be64(d) + v); return *this; }
+    BE64& operator -= (acc_uint64l_t v) { set_be64(d, get_be64(d) - v); return *this; }
+    BE64& operator *= (acc_uint64l_t v) { set_be64(d, get_be64(d) * v); return *this; }
+    BE64& operator /= (acc_uint64l_t v) { set_be64(d, get_be64(d) / v); return *this; }
+    BE64& operator &= (acc_uint64l_t v) { set_be64(d, get_be64(d) & v); return *this; }
+    BE64& operator |= (acc_uint64l_t v) { set_be64(d, get_be64(d) | v); return *this; }
+    BE64& operator ^= (acc_uint64l_t v) { set_be64(d, get_be64(d) ^ v); return *this; }
+    BE64& operator <<= (unsigned v) { set_be64(d, get_be64(d) << v); return *this; }
+    BE64& operator >>= (unsigned v) { set_be64(d, get_be64(d) >> v); return *this; }
+
+    operator acc_uint64l_t () const  { return get_be64(d); }
+}
+__attribute_packed;
+
+
+struct LE16
 {
     unsigned char d[2];
 
-public:
+    //inline LE16() { }
-    LE16& operator =  (const LE16 &v) { memcpy(d, v.d, sizeof(d)); return *this; }
+    //LE16(unsigned v) { set_le16(d, v); }
 
-    LE16& operator =  (unsigned v)    { set_le16(d, v); return *this; }
+    LE16& operator =  (unsigned v) { set_le16(d, v); return *this; }
-    LE16& operator += (unsigned v)    { set_le16(d, get_le16(d) + v); return *this; }
+    LE16& operator += (unsigned v) { set_le16(d, get_le16(d) + v); return *this; }
-    LE16& operator -= (unsigned v)    { set_le16(d, get_le16(d) - v); return *this; }
+    LE16& operator -= (unsigned v) { set_le16(d, get_le16(d) - v); return *this; }
-    LE16& operator &= (unsigned v)    { set_le16(d, get_le16(d) & v); return *this; }
+    LE16& operator *= (unsigned v) { set_le16(d, get_le16(d) * v); return *this; }
-    LE16& operator |= (unsigned v)    { set_le16(d, get_le16(d) | v); return *this; }
+    LE16& operator /= (unsigned v) { set_le16(d, get_le16(d) / v); return *this; }
+    LE16& operator &= (unsigned v) { set_le16(d, get_le16(d) & v); return *this; }
+    LE16& operator |= (unsigned v) { set_le16(d, get_le16(d) | v); return *this; }
+    LE16& operator ^= (unsigned v) { set_le16(d, get_le16(d) ^ v); return *this; }
+    LE16& operator <<= (unsigned v) { set_le16(d, get_le16(d) << v); return *this; }
+    LE16& operator >>= (unsigned v) { set_le16(d, get_le16(d) >> v); return *this; }
 
-    operator const unsigned () const  { return get_le16(d); }
+    operator unsigned () const  { return get_le16(d); }
 }
 __attribute_packed;
 
 
-class LE32
+struct LE32
 {
     unsigned char d[4];
 
-public:
+    //inline LE32() { }
-    LE32& operator =  (const LE32 &v) { memcpy(d, v.d, sizeof(d)); return *this; }
+    //LE32(unsigned v) { set_le32(d, v); }
 
-    LE32& operator =  (unsigned v)    { set_le32(d, v); return *this; }
+    LE32& operator =  (unsigned v) { set_le32(d, v); return *this; }
-    LE32& operator += (unsigned v)    { set_le32(d, get_le32(d) + v); return *this; }
+    LE32& operator += (unsigned v) { set_le32(d, get_le32(d) + v); return *this; }
-    LE32& operator -= (unsigned v)    { set_le32(d, get_le32(d) - v); return *this; }
+    LE32& operator -= (unsigned v) { set_le32(d, get_le32(d) - v); return *this; }
-    LE32& operator &= (unsigned v)    { set_le32(d, get_le32(d) & v); return *this; }
+    LE32& operator *= (unsigned v) { set_le32(d, get_le32(d) * v); return *this; }
-    LE32& operator |= (unsigned v)    { set_le32(d, get_le32(d) | v); return *this; }
+    LE32& operator /= (unsigned v) { set_le32(d, get_le32(d) / v); return *this; }
+    LE32& operator &= (unsigned v) { set_le32(d, get_le32(d) & v); return *this; }
+    LE32& operator |= (unsigned v) { set_le32(d, get_le32(d) | v); return *this; }
+    LE32& operator ^= (unsigned v) { set_le32(d, get_le32(d) ^ v); return *this; }
+    LE32& operator <<= (unsigned v) { set_le32(d, get_le32(d) << v); return *this; }
+    LE32& operator >>= (unsigned v) { set_le32(d, get_le32(d) >> v); return *this; }
 
-    operator const unsigned () const  { return get_le32(d); }
+    operator unsigned () const  { return get_le32(d); }
+}
+__attribute_packed;
+
+
+struct LE64
+{
+    unsigned char d[8];
+
+    //inline LE64() { }
+    //LE64(acc_uint64l_t v) { set_le64(d, v); }
+
+    LE64& operator =  (acc_uint64l_t v) { set_le64(d, v); return *this; }
+    LE64& operator += (acc_uint64l_t v) { set_le64(d, get_le64(d) + v); return *this; }
+    LE64& operator -= (acc_uint64l_t v) { set_le64(d, get_le64(d) - v); return *this; }
+    LE64& operator *= (acc_uint64l_t v) { set_le64(d, get_le64(d) * v); return *this; }
+    LE64& operator /= (acc_uint64l_t v) { set_le64(d, get_le64(d) / v); return *this; }
+    LE64& operator &= (acc_uint64l_t v) { set_le64(d, get_le64(d) & v); return *this; }
+    LE64& operator |= (acc_uint64l_t v) { set_le64(d, get_le64(d) | v); return *this; }
+    LE64& operator ^= (acc_uint64l_t v) { set_le64(d, get_le64(d) ^ v); return *this; }
+    LE64& operator <<= (unsigned v) { set_le64(d, get_le64(d) << v); return *this; }
+    LE64& operator >>= (unsigned v) { set_le64(d, get_le64(d) >> v); return *this; }
+
+    operator acc_uint64l_t () const  { return get_le64(d); }
 }
 __attribute_packed;
 
@@ -292,46 +455,78 @@ __attribute_packed;
 // global operators
 **************************************************************************/
 
-inline bool operator < (const BE16& v1, const BE16& v2)
+template <class T>
-{
+inline T* operator + (T* ptr, const BE16& v) { return ptr + (unsigned) v; }
-    return (const unsigned)v1 < (const unsigned)v2;
+template <class T>
-}
+inline T* operator + (const BE16& v, T* ptr) { return ptr + (unsigned) v; }
-
+template <class T>
-inline bool operator < (const BE32& v1, const BE32& v2)
+inline T* operator - (T* ptr, const BE16& v) { return ptr - (unsigned) v; }
-{
-    return (const unsigned)v1 < (const unsigned)v2;
-}
-
-inline bool operator < (const LE16& v1, const LE16& v2)
-{
-    return (const unsigned)v1 < (const unsigned)v2;
-}
-
-inline bool operator < (const LE32& v1, const LE32& v2)
-{
-    return (const unsigned)v1 < (const unsigned)v2;
-}
-
 
 template <class T>
-inline T* operator + (T* ptr, const BE16& v) { return ptr + (const unsigned) v; }
+inline T* operator + (T* ptr, const BE32& v) { return ptr + (unsigned) v; }
 template <class T>
-inline T* operator - (T* ptr, const BE16& v) { return ptr - (const unsigned) v; }
+inline T* operator + (const BE32& v, T* ptr) { return ptr + (unsigned) v; }
+template <class T>
+inline T* operator - (T* ptr, const BE32& v) { return ptr - (unsigned) v; }
+
+// these are not implemented on purpose and will cause link-time errors
+template <class T> T* operator + (T* ptr, const BE64& v);
+template <class T> T* operator + (const BE64& v, T* ptr);
+template <class T> T* operator - (T* ptr, const BE64& v);
 
 template <class T>
-inline T* operator + (T* ptr, const BE32& v) { return ptr + (const unsigned) v; }
+inline T* operator + (T* ptr, const LE16& v) { return ptr + (unsigned) v; }
 template <class T>
-inline T* operator - (T* ptr, const BE32& v) { return ptr - (const unsigned) v; }
+inline T* operator + (const LE16& v, T* ptr) { return ptr + (unsigned) v; }
+template <class T>
+inline T* operator - (T* ptr, const LE16& v) { return ptr - (unsigned) v; }
 
 template <class T>
-inline T* operator + (T* ptr, const LE16& v) { return ptr + (const unsigned) v; }
+inline T* operator + (T* ptr, const LE32& v) { return ptr + (unsigned) v; }
 template <class T>
-inline T* operator - (T* ptr, const LE16& v) { return ptr - (const unsigned) v; }
+inline T* operator + (const LE32& v, T* ptr) { return ptr + (unsigned) v; }
+template <class T>
+inline T* operator - (T* ptr, const LE32& v) { return ptr - (unsigned) v; }
 
-template <class T>
+// these are not implemented on purpose and will cause link-time errors
-inline T* operator + (T* ptr, const LE32& v) { return ptr + (const unsigned) v; }
+template <class T> T* operator + (T* ptr, const LE64& v);
-template <class T>
+template <class T> T* operator + (const LE64& v, T* ptr);
-inline T* operator - (T* ptr, const LE32& v) { return ptr - (const unsigned) v; }
+template <class T> T* operator - (T* ptr, const LE64& v);
+
+
+/*************************************************************************
+// global overloads
+**************************************************************************/
+
+#if 1 && !defined(ALIGN_DOWN)
+inline unsigned ALIGN_DOWN(unsigned a, const LE32& b) { return ALIGN_DOWN(a, (unsigned) b); }
+inline unsigned ALIGN_DOWN(const LE32& a, unsigned b) { return ALIGN_DOWN((unsigned) a, b); }
+inline unsigned ALIGN_UP  (unsigned a, const LE32& b) { return ALIGN_UP  (a, (unsigned) b); }
+inline unsigned ALIGN_UP  (const LE32& a, unsigned b) { return ALIGN_UP  ((unsigned) a, b); }
+#endif
+
+
+#if !defined(UPX_MAX)
+inline unsigned UPX_MAX(unsigned a, const BE16& b)    { return UPX_MAX(a, (unsigned) b); }
+inline unsigned UPX_MAX(const BE16& a, unsigned b)    { return UPX_MAX((unsigned) a, b); }
+inline unsigned UPX_MIN(unsigned a, const BE16& b)    { return UPX_MIN(a, (unsigned) b); }
+inline unsigned UPX_MIN(const BE16& a, unsigned b)    { return UPX_MIN((unsigned) a, b); }
+
+inline unsigned UPX_MAX(unsigned a, const BE32& b)    { return UPX_MAX(a, (unsigned) b); }
+inline unsigned UPX_MAX(const BE32& a, unsigned b)    { return UPX_MAX((unsigned) a, b); }
+inline unsigned UPX_MIN(unsigned a, const BE32& b)    { return UPX_MIN(a, (unsigned) b); }
+inline unsigned UPX_MIN(const BE32& a, unsigned b)    { return UPX_MIN((unsigned) a, b); }
+
+inline unsigned UPX_MAX(unsigned a, const LE16& b)    { return UPX_MAX(a, (unsigned) b); }
+inline unsigned UPX_MAX(const LE16& a, unsigned b)    { return UPX_MAX((unsigned) a, b); }
+inline unsigned UPX_MIN(unsigned a, const LE16& b)    { return UPX_MIN(a, (unsigned) b); }
+inline unsigned UPX_MIN(const LE16& a, unsigned b)    { return UPX_MIN((unsigned) a, b); }
+
+inline unsigned UPX_MAX(unsigned a, const LE32& b)    { return UPX_MAX(a, (unsigned) b); }
+inline unsigned UPX_MAX(const LE32& a, unsigned b)    { return UPX_MAX((unsigned) a, b); }
+inline unsigned UPX_MIN(unsigned a, const LE32& b)    { return UPX_MIN(a, (unsigned) b); }
+inline unsigned UPX_MIN(const LE32& a, unsigned b)    { return UPX_MIN((unsigned) a, b); }
+#endif
 
 
 /*************************************************************************
@@ -339,29 +534,106 @@ inline T* operator - (T* ptr, const LE32& v) { return ptr - (const unsigned) v;
 **************************************************************************/
 
 // for use with qsort()
-int be16_compare(const void *e1, const void *e2);
+extern "C" {
-int be24_compare(const void *e1, const void *e2);
+int __acc_cdecl_qsort be16_compare(const void *, const void *);
-int be32_compare(const void *e1, const void *e2);
+int __acc_cdecl_qsort be24_compare(const void *, const void *);
-int le16_compare(const void *e1, const void *e2);
+int __acc_cdecl_qsort be32_compare(const void *, const void *);
-int le24_compare(const void *e1, const void *e2);
+int __acc_cdecl_qsort be64_compare(const void *, const void *);
-int le32_compare(const void *e1, const void *e2);
+int __acc_cdecl_qsort le16_compare(const void *, const void *);
-int be16_compare_signed(const void *e1, const void *e2);
+int __acc_cdecl_qsort le24_compare(const void *, const void *);
-int be24_compare_signed(const void *e1, const void *e2);
+int __acc_cdecl_qsort le32_compare(const void *, const void *);
-int be32_compare_signed(const void *e1, const void *e2);
+int __acc_cdecl_qsort le64_compare(const void *, const void *);
-int le16_compare_signed(const void *e1, const void *e2);
+int __acc_cdecl_qsort be16_compare_signed(const void *, const void *);
-int le24_compare_signed(const void *e1, const void *e2);
+int __acc_cdecl_qsort be24_compare_signed(const void *, const void *);
-int le32_compare_signed(const void *e1, const void *e2);
+int __acc_cdecl_qsort be32_compare_signed(const void *, const void *);
+int __acc_cdecl_qsort be64_compare_signed(const void *, const void *);
+int __acc_cdecl_qsort le16_compare_signed(const void *, const void *);
+int __acc_cdecl_qsort le24_compare_signed(const void *, const void *);
+int __acc_cdecl_qsort le32_compare_signed(const void *, const void *);
+int __acc_cdecl_qsort le64_compare_signed(const void *, const void *);
+} // extern "C"
 
 
 // just for testing...
-#if 0 && defined(__i386__) && defined(__GNUC_VERSION_HEX__)
+#if !defined(ACC_CFG_NO_UNALIGNED)
-# if (__GNUC_VERSION_HEX__ >= 0x030100)
+#if 0 && (ACC_ARCH_AMD64 || ACC_ARCH_I386) && (ACC_CC_GNUC >= 0x030200)
-   typedef unsigned short LE16_unaligned __attribute__((__packed__,__aligned__(1)));
+   typedef acc_uint16e_t LE16_unaligned __attribute__((__aligned__(1)));
-   typedef unsigned int   LE32_unaligned __attribute__((__packed__,__aligned__(1)));
+   typedef acc_uint32e_t LE32_unaligned __attribute__((__aligned__(1)));
-#  define LE16      LE16_unaligned
+#  ifndef LE16
-#  define LE32      LE32_unaligned
+#    define LE16    LE16_unaligned
-# endif
+#  endif
+#  ifndef LE32
+#    define LE32    LE32_unaligned
+#  endif
 #endif
+#if 0 && (ACC_ARCH_I386) && (ACC_CC_INTELC)
+   typedef __declspec(align(1)) acc_uint16e_t LE16_unaligned;
+   typedef __declspec(align(1)) acc_uint32e_t LE32_unaligned;
+#  ifndef LE16
+#    define LE16    LE16_unaligned
+#  endif
+#  ifndef LE32
+#    define LE32    LE32_unaligned
+#  endif
+#endif
+#if 0 && (ACC_ARCH_AMD64 || ACC_ARCH_I386) && (ACC_CC_MSC) && (_MSC_VER >= 1200)
+   typedef __declspec(align(1)) acc_uint16e_t LE16_unaligned;
+   typedef __declspec(align(1)) acc_uint32e_t LE32_unaligned;
+#  ifndef LE16
+#    define LE16    LE16_unaligned
+#  endif
+#  ifndef LE32
+#    define LE32    LE32_unaligned
+#  endif
+#  pragma warning(disable: 4244)        // Wx: conversion, possible loss of data
+#endif
+#endif
+
+
+/*************************************************************************
+// Provide namespaces and classes to abtract endianness policies.
+//
+// CTP - Compile-Time Polymorphism (templates)
+// RTP - Run-Time Polymorphism (virtual functions)
+**************************************************************************/
+
+// forward declarations
+namespace N_BELE_CTP {
+class BEPolicy; class LEPolicy;
+extern const BEPolicy be_policy;
+extern const LEPolicy le_policy;
+}
+namespace N_BELE_RTP {
+class AbstractPolicy;
+class BEPolicy; class LEPolicy;
+extern const BEPolicy be_policy;
+extern const LEPolicy le_policy;
+}
+
+namespace N_BELE_CTP {
+#define BELE_CTP 1
+#include "bele_policy.h"
+#undef BELE_CTP
+}
+
+namespace N_BELE_RTP {
+#define BELE_RTP 1
+#include "bele_policy.h"
+#undef BELE_RTP
+}
+
+namespace N_BELE_CTP {
+
+template <class T>
+inline const N_BELE_RTP::AbstractPolicy* getRTP();
+template <>
+inline const N_BELE_RTP::AbstractPolicy* getRTP<BEPolicy>()
+     { return &N_BELE_RTP::be_policy; }
+template <>
+inline const N_BELE_RTP::AbstractPolicy* getRTP<LEPolicy>()
+     { return &N_BELE_RTP::le_policy; }
+
+}
 
 
 #endif /* already included */

src/bele_policy.h

@@ -0,0 +1,283 @@
+/* bele_policy.h -- access memory in BigEndian and LittleEndian byte order
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+ */
+
+
+#ifndef __UPX_BELE_H
+#  error "this is an internal include file"
+#endif
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+#if defined(BELE_CTP)
+   // CTP - Compile-Time Polymorphism (templates)
+#  define V     static inline
+#  define S     static int __acc_cdecl_qsort
+#  define C
+#elif defined(BELE_RTP)
+   // RTP - Run-Time Polymorphism (virtual functions)
+#  define V     virtual
+#  define S     virtual int
+#  define C     const
+#else
+#  error
+#endif
+
+
+#if defined(BELE_RTP)
+struct AbstractPolicy
+{
+    inline AbstractPolicy() { }
+    virtual inline ~AbstractPolicy() { }
+    V bool isBE() C = 0;
+    V bool isLE() C = 0;
+
+    V unsigned get16(const void *p) C = 0;
+    V unsigned get24(const void *p) C = 0;
+    V unsigned get32(const void *p) C = 0;
+    V acc_uint64l_t get64(const void *p) C = 0;
+
+    V void set16(void *p, unsigned v) C = 0;
+    V void set24(void *p, unsigned v) C = 0;
+    V void set32(void *p, unsigned v) C = 0;
+    V void set64(void *p, acc_uint64l_t v) C = 0;
+
+    V unsigned get16_signed(const void *p) C = 0;
+    V unsigned get24_signed(const void *p) C = 0;
+    V unsigned get32_signed(const void *p) C = 0;
+    V acc_uint64l_t get64_signed(const void *p) C = 0;
+
+    S u16_compare(const void *a, const void *b) C = 0;
+    S u24_compare(const void *a, const void *b) C = 0;
+    S u32_compare(const void *a, const void *b) C = 0;
+    S u64_compare(const void *a, const void *b) C = 0;
+
+    S u16_compare_signed(const void *a, const void *b) C = 0;
+    S u24_compare_signed(const void *a, const void *b) C = 0;
+    S u32_compare_signed(const void *a, const void *b) C = 0;
+    S u64_compare_signed(const void *a, const void *b) C = 0;
+
+    // disable dynamic allocation
+    DISABLE_NEW_DELETE
+};
+#endif
+
+
+struct BEPolicy
+#if defined(BELE_RTP)
+    : public AbstractPolicy
+#endif
+{
+    inline BEPolicy() { }
+#if defined(BELE_CTP)
+    typedef N_BELE_RTP::BEPolicy RTP_Policy;
+#elif defined(BELE_RTP)
+    typedef N_BELE_CTP::BEPolicy CTP_Policy;
+#endif
+    V bool isBE() C { return true; }
+    V bool isLE() C { return false; }
+
+    typedef BE16 U16;
+    typedef BE32 U32;
+    typedef BE64 U64;
+
+    V unsigned get16(const void *p) C
+        { return get_be16(p); }
+    V unsigned get24(const void *p) C
+        { return get_be24(p); }
+    V unsigned get32(const void *p) C
+        { return get_be32(p); }
+    V acc_uint64l_t get64(const void *p) C
+        { return get_be64(p); }
+
+    V void set16(void *p, unsigned v) C
+        { set_be16(p, v); }
+    V void set24(void *p, unsigned v) C
+        { set_be24(p, v); }
+    V void set32(void *p, unsigned v) C
+        { set_be32(p, v); }
+    V void set64(void *p, acc_uint64l_t v) C
+        { set_be64(p, v); }
+
+    V unsigned get16_signed(const void *p) C
+        { return get_be16_signed(p); }
+    V unsigned get24_signed(const void *p) C
+        { return get_be24_signed(p); }
+    V unsigned get32_signed(const void *p) C
+        { return get_be32_signed(p); }
+    V acc_uint64l_t get64_signed(const void *p) C
+        { return get_be64_signed(p); }
+
+    S u16_compare(const void *a, const void *b) C
+        { return be16_compare(a, b); }
+    S u24_compare(const void *a, const void *b) C
+        { return be24_compare(a, b); }
+    S u32_compare(const void *a, const void *b) C
+        { return be32_compare(a, b); }
+    S u64_compare(const void *a, const void *b) C
+        { return be64_compare(a, b); }
+
+    S u16_compare_signed(const void *a, const void *b) C
+        { return be16_compare_signed(a, b); }
+    S u24_compare_signed(const void *a, const void *b) C
+        { return be24_compare_signed(a, b); }
+    S u32_compare_signed(const void *a, const void *b) C
+        { return be32_compare_signed(a, b); }
+    S u64_compare_signed(const void *a, const void *b) C
+        { return be64_compare_signed(a, b); }
+
+    static void compileTimeAssertions() {
+        COMPILE_TIME_ASSERT(sizeof(U16) == 2)
+        COMPILE_TIME_ASSERT(sizeof(U32) == 4)
+        COMPILE_TIME_ASSERT(sizeof(U64) == 8)
+        COMPILE_TIME_ASSERT_ALIGNED1(U16)
+        COMPILE_TIME_ASSERT_ALIGNED1(U32)
+        COMPILE_TIME_ASSERT_ALIGNED1(U64)
+    }
+
+    // disable dynamic allocation
+    DISABLE_NEW_DELETE
+};
+
+
+struct LEPolicy
+#if defined(BELE_RTP)
+    : public AbstractPolicy
+#endif
+{
+    inline LEPolicy() { }
+#if defined(BELE_CTP)
+    typedef N_BELE_RTP::LEPolicy RTP_Policy;
+#elif defined(BELE_RTP)
+    typedef N_BELE_CTP::LEPolicy CTP_Policy;
+#endif
+    V bool isBE() C { return false; }
+    V bool isLE() C { return true; }
+
+    typedef LE16 U16;
+    typedef LE32 U32;
+    typedef LE64 U64;
+
+    V unsigned get16(const void *p) C
+        { return get_le16(p); }
+    V unsigned get24(const void *p) C
+        { return get_le24(p); }
+    V unsigned get32(const void *p) C
+        { return get_le32(p); }
+    V acc_uint64l_t get64(const void *p) C
+        { return get_le64(p); }
+
+    V void set16(void *p, unsigned v) C
+        { set_le16(p, v); }
+    V void set24(void *p, unsigned v) C
+        { set_le24(p, v); }
+    V void set32(void *p, unsigned v) C
+        { set_le32(p, v); }
+    V void set64(void *p, acc_uint64l_t v) C
+        { set_le64(p, v); }
+
+    V unsigned get16_signed(const void *p) C
+        { return get_le16_signed(p); }
+    V unsigned get24_signed(const void *p) C
+        { return get_le24_signed(p); }
+    V unsigned get32_signed(const void *p) C
+        { return get_le32_signed(p); }
+    V acc_uint64l_t get64_signed(const void *p) C
+        { return get_le64_signed(p); }
+
+    S u16_compare(const void *a, const void *b) C
+        { return le16_compare(a, b); }
+    S u24_compare(const void *a, const void *b) C
+        { return le24_compare(a, b); }
+    S u32_compare(const void *a, const void *b) C
+        { return le32_compare(a, b); }
+    S u64_compare(const void *a, const void *b) C
+        { return le64_compare(a, b); }
+
+    S u16_compare_signed(const void *a, const void *b) C
+        { return le16_compare_signed(a, b); }
+    S u24_compare_signed(const void *a, const void *b) C
+        { return le24_compare_signed(a, b); }
+    S u32_compare_signed(const void *a, const void *b) C
+        { return le32_compare_signed(a, b); }
+    S u64_compare_signed(const void *a, const void *b) C
+        { return le64_compare_signed(a, b); }
+
+    static void compileTimeAssertions() {
+        COMPILE_TIME_ASSERT(sizeof(U16) == 2)
+        COMPILE_TIME_ASSERT(sizeof(U32) == 4)
+        COMPILE_TIME_ASSERT(sizeof(U64) == 8)
+        COMPILE_TIME_ASSERT_ALIGNED1(U16)
+        COMPILE_TIME_ASSERT_ALIGNED1(U32)
+        COMPILE_TIME_ASSERT_ALIGNED1(U64)
+    }
+
+    // disable dynamic allocation
+    DISABLE_NEW_DELETE
+};
+
+
+#if (ACC_ABI_BIG_ENDIAN)
+typedef BEPolicy HostPolicy;
+#elif (ACC_ABI_LITTLE_ENDIAN)
+typedef LEPolicy HostPolicy;
+#else
+#  error "ACC_ABI_ENDIAN"
+#endif
+
+
+#if 0 /* UNUSED */
+struct HostAlignedPolicy
+{
+#if defined(BELE_CTP)
+    enum { isBE = HostPolicy::isBE, isLE = HostPolicy::isLE };
+#endif
+
+    typedef acc_uint16e_t U16;
+    typedef acc_uint32e_t U32;
+    typedef acc_uint64l_t U64;
+
+    static void compileTimeAssertions() {
+        COMPILE_TIME_ASSERT(sizeof(U16) == 2)
+        COMPILE_TIME_ASSERT(sizeof(U32) == 4)
+        COMPILE_TIME_ASSERT(sizeof(U64) == 8)
+    }
+};
+#endif
+
+
+#undef V
+#undef S
+#undef C
+
+
+/*
+vi:ts=4:et:nowrap
+*/
+

src/bptr.h

@@ -0,0 +1,115 @@
+/* bptr.h --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+ */
+
+
+#ifndef __UPX_BPTR_H
+#define __UPX_BPTR_H
+
+
+/*************************************************************************
+// BoundedPtr
+**************************************************************************/
+
+template <class T>
+class BoundedPtr
+{
+//    typedef BoundedPtr<T> Self;
+public:
+    typedef T* StoredType;
+    typedef T* PointerType;
+    typedef T& ReferenceType;
+
+    ~BoundedPtr() { }
+
+    explicit BoundedPtr(void* base, unsigned size, T* ptr=0)
+        : ptr_(ptr), base_(base), size_(size) { check(); }
+    BoundedPtr& operator= (const BoundedPtr& other) {
+        assert(base_ == other.base_); assert(size_ == other.size_);
+        ptr_ = other.ptr_; check(); return *this;
+    }
+    BoundedPtr& operator= (T* other) {
+        ptr_ = other; check(); return *this;
+    }
+
+    operator T* () { check(); return ptr_; }
+    operator const T* () const { check(); return ptr_; }
+
+    BoundedPtr& operator += (size_t n) {
+        checkStrict(); ptr_ += n; checkStrict(); return *this;
+    }
+    BoundedPtr& operator -= (size_t n) {
+        checkStrict(); ptr_ -= n; checkStrict(); return *this;
+    }
+    BoundedPtr& operator ++ (void) {
+        checkStrict(); ptr_ += 1; checkStrict(); return *this;
+    }
+//    T* operator ++ (int) {
+//        T* p = ptr_; checkStrict(); ptr_ += 1; checkStrict(); return p;
+//    }
+//    BoundedPtr& operator -- (void) {
+//        checkStrict(); ptr_ -= 1; checkStrict(); return *this;
+//    }
+
+
+private:
+    void checkNULL() const {
+        if (!ptr_)
+            throwCantUnpack("unexpected NULL pointer; take care!");
+    }
+    void checkRange(size_t extra=0) const {
+        size_t off = (const char *) ptr_ - (const char *) base_;
+        if (off > size_ || off + extra > size_)
+            throwCantUnpack("pointer out of range; take care!");
+    }
+    void checkStrict(size_t extra=0) const {
+        checkNULL();
+        checkRange(extra);
+    }
+    void check(size_t extra=0) const {
+        if (ptr_) checkRange(extra);
+    }
+
+    T* ptr_;
+    void* base_;
+    size_t size_;
+
+    // disable copy
+    BoundedPtr(const BoundedPtr&); // {}
+//    BoundedPtr& operator= (const BoundedPtr&); // { return *this; }
+
+    // disable dynamic allocation
+    DISABLE_NEW_DELETE
+};
+
+
+#endif /* already included */
+
+
+/*
+vi:ts=4:et
+*/
+

src/c_file.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -72,7 +72,7 @@ static void print0(FILE *f, const char *s)
 }
 
 
-static upx_bool intro(FILE *f)
+static bool intro(FILE *f)
 {
     UNUSED(f);
     return 0;

src/c_init.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -81,7 +81,7 @@ static int do_init(FILE *f)
     if (opt->console == CON_NONE || opt->to_stdout)
         return con_mode;
     try_init(&console_file,f);
-    if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO) || !isatty(STDERR_FILENO))
+    if (!acc_isatty(STDIN_FILENO) || !acc_isatty(STDOUT_FILENO) || !acc_isatty(STDERR_FILENO))
         return con_mode;
 
 #if defined(USE_ANSI)
@@ -124,7 +124,7 @@ static int set_fg(FILE *f, int fg)
 }
 
 
-static upx_bool intro(FILE *f)
+static bool intro(FILE *f)
 {
     if (con == me)
         init(f,-1,-1);
@@ -142,7 +142,7 @@ console_t console_init =
 };
 
 
-void con_fprintf(FILE *f, const char *format, ...)
+void __acc_cdecl_va con_fprintf(FILE *f, const char *format, ...)
 {
     va_list args;
     char buf[80*25];

src/c_none.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -58,7 +58,7 @@ static void print0(FILE *f, const char *s)
 }
 
 
-static upx_bool intro(FILE *f)
+static bool intro(FILE *f)
 {
     UNUSED(f);
     return 0;

src/c_screen.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -88,7 +88,7 @@ static screen_t *do_construct(screen_t *s, int fd)
 
 static screen_t *screen = NULL;
 
-static void do_destroy(void)
+static void __acc_cdecl_atexit do_destroy(void)
 {
     if (screen)
     {
@@ -130,7 +130,7 @@ static int init(FILE *f, int o, int now)
     if (!screen)
         screen = do_construct(screen_djgpp2_construct(),fd);
 #endif
-#if defined(__MFX_WIN32)
+#if defined(USE_SCREEN_WIN32)
     if (!screen)
         screen = do_construct(screen_win32_construct(),fd);
 #endif
@@ -295,7 +295,7 @@ static void print0(FILE *f, const char *ss)
 }
 
 
-static upx_bool intro(FILE *f)
+static bool intro(FILE *f)
 {
     UNUSED(f);
 #if defined(USE_FRAMES)

src/compress.ch

@@ -1,242 +0,0 @@
-/* compress.ch --
-
-   This file is part of the UPX executable compressor.
-
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
-   All Rights Reserved.
-
-   UPX and the UCL library are free software; you can redistribute them
-   and/or modify them under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2 of
-   the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation, Inc.,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-   Markus F.X.J. Oberhumer              Laszlo Molnar
-   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
- */
-
-
-/*************************************************************************
-//
-**************************************************************************/
-
-#if defined(upx_adler32)
-unsigned upx_adler32(const void *buf, unsigned len, unsigned adler)
-{
-    if (len == 0)
-        return adler;
-    assert(buf != NULL);
-    return ucl_adler32(adler, (const ucl_bytep)buf, len);
-}
-#endif
-
-
-#if defined(upx_crc32)
-unsigned upx_crc32(const void *buf, unsigned len, unsigned crc)
-{
-    if (len == 0)
-        return crc;
-    assert(buf != NULL);
-    return ucl_crc32(crc, (const ucl_bytep)buf, len);
-}
-#endif
-
-
-/*************************************************************************
-//
-**************************************************************************/
-
-#if defined(upx_compress)
-
-int upx_compress           ( const upx_bytep src, upx_uint  src_len,
-                                   upx_bytep dst, upx_uintp dst_len,
-                                   upx_progress_callback_t *cb,
-                                   int method, int level,
-                             const struct upx_compress_config_t *conf_parm,
-                                   upx_uintp result )
-{
-    struct upx_compress_config_t conf;
-    upx_uint result_buffer[16];
-    int r = UPX_E_ERROR;
-
-    assert(level > 0);
-    memset(&conf, 0xff, sizeof(conf));
-    if (conf_parm)
-        conf = *conf_parm;      // struct copy
-    if (!result)
-        result = result_buffer;
-
-    // assume no info available - fill in worst case results
-    //result[0] = 1;              // min_offset_found - NOT USED
-    result[1] = src_len - 1;    // max_offset_found
-    //result[2] = 2;              // min_match_found - NOT USED
-    result[3] = src_len - 1;    // max_match_found
-    //result[4] = 1;              // min_run_found - NOT USED
-    result[5] = src_len;        // max_run_found
-    result[6] = 1;              // first_offset_found
-    //result[7] = 999999;         // same_match_offsets_found - NOT USED
-
-    // prepare bit-buffer settings
-    conf.bb_endian = 0;
-    conf.bb_size = 0;
-    if (method >= M_NRV2B_LE32 && method <= M_NRV2E_LE16)
-    {
-        int n = (method - M_NRV2B_LE32) % 3;
-        if (n == 0)
-            conf.bb_size = 32;
-        else if (n == 1)
-            conf.bb_size = 8;
-        else
-            conf.bb_size = 16;
-    }
-    else
-        throwInternalError("unknown compression method");
-
-    // optimize compression parms
-    if (level <= 3 && conf.max_offset == UPX_UINT_MAX)
-        conf.max_offset = 8*1024-1;
-    else if (level == 4 && conf.max_offset == UPX_UINT_MAX)
-        conf.max_offset = 32*1024-1;
-
-    if M_IS_NRV2B(method)
-        r = ucl_nrv2b_99_compress(src, src_len, dst, dst_len,
-                                  cb, level, &conf, result);
-    else if M_IS_NRV2D(method)
-        r = ucl_nrv2d_99_compress(src, src_len, dst, dst_len,
-                                  cb, level, &conf, result);
-#if defined(ALG_NRV2E)
-    else if M_IS_NRV2E(method)
-        r = ucl_nrv2e_99_compress(src, src_len, dst, dst_len,
-                                  cb, level, &conf, result);
-#endif
-    else
-        throwInternalError("unknown compression method");
-
-    return r;
-}
-
-#endif /* upx_compress */
-
-
-/*************************************************************************
-//
-**************************************************************************/
-
-#if defined(upx_decompress)
-
-int upx_decompress         ( const upx_bytep src, upx_uint  src_len,
-                                   upx_bytep dst, upx_uintp dst_len,
-                                   int method )
-{
-    int r = UPX_E_ERROR;
-
-    switch (method)
-    {
-    case M_NRV2B_8:
-        r = ucl_nrv2b_decompress_safe_8(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2B_LE16:
-        r = ucl_nrv2b_decompress_safe_le16(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2B_LE32:
-        r = ucl_nrv2b_decompress_safe_le32(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2D_8:
-        r = ucl_nrv2d_decompress_safe_8(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2D_LE16:
-        r = ucl_nrv2d_decompress_safe_le16(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2D_LE32:
-        r = ucl_nrv2d_decompress_safe_le32(src,src_len,dst,dst_len,NULL);
-        break;
-#if defined(ALG_NRV2E)
-    case M_NRV2E_8:
-        r = ucl_nrv2e_decompress_safe_8(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2E_LE16:
-        r = ucl_nrv2e_decompress_safe_le16(src,src_len,dst,dst_len,NULL);
-        break;
-    case M_NRV2E_LE32:
-        r = ucl_nrv2e_decompress_safe_le32(src,src_len,dst,dst_len,NULL);
-        break;
-#endif
-    default:
-        throwInternalError("unknown decompression method");
-        break;
-    }
-
-    return r;
-}
-
-#endif /* upx_decompress */
-
-
-/*************************************************************************
-//
-**************************************************************************/
-
-#if defined(upx_test_overlap)
-
-int upx_test_overlap       ( const upx_bytep buf, upx_uint src_off,
-                                   upx_uint  src_len, upx_uintp dst_len,
-                                   int method )
-{
-    int r = UPX_E_ERROR;
-
-    switch (method)
-    {
-    case M_NRV2B_8:
-        r = ucl_nrv2b_test_overlap_8(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2B_LE16:
-        r = ucl_nrv2b_test_overlap_le16(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2B_LE32:
-        r = ucl_nrv2b_test_overlap_le32(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2D_8:
-        r = ucl_nrv2d_test_overlap_8(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2D_LE16:
-        r = ucl_nrv2d_test_overlap_le16(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2D_LE32:
-        r = ucl_nrv2d_test_overlap_le32(buf,src_off,src_len,dst_len,NULL);
-        break;
-#if defined(ALG_NRV2E)
-    case M_NRV2E_8:
-        r = ucl_nrv2e_test_overlap_8(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2E_LE16:
-        r = ucl_nrv2e_test_overlap_le16(buf,src_off,src_len,dst_len,NULL);
-        break;
-    case M_NRV2E_LE32:
-        r = ucl_nrv2e_test_overlap_le32(buf,src_off,src_len,dst_len,NULL);
-        break;
-#endif
-    default:
-        throwInternalError("unknown decompression method");
-        break;
-    }
-
-    return r;
-}
-
-#endif /* upx_test_overlap */
-
-
-/*
-vi:ts=4:et:nowrap
-*/
-

src/compress.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -27,23 +27,196 @@
 
 
 #include "conf.h"
+#include "compress.h"
+#include "mem.h"
+#include <zlib.h>
 
 
-#if defined(WITH_NRV)
+/*************************************************************************
-#  include "compress_nrv.ch"
+//
+**************************************************************************/
+
+unsigned upx_adler32(const void *buf, unsigned len, unsigned adler)
+{
+    if (len == 0)
+        return adler;
+    assert(buf != NULL);
+#if 0
+    return adler32(adler, (const Bytef *) buf, len); // zlib
 #elif defined(WITH_UCL)
-#  define upx_adler32       upx_adler32
+    return ucl_adler32(adler, (const ucl_bytep) buf, len);
-//#  define upx_crc32         upx_crc32
-#  define upx_compress      upx_compress
-#  define upx_decompress    upx_decompress
-#  if (UPX_VERSION_HEX >= 0x019000)
-#    define ALG_NRV2E
-#    define upx_test_overlap  upx_test_overlap
-#  endif
-#  include "compress.ch"
 #else
 #  error
 #endif
+}
+
+
+#if 0 /* UNUSED */
+unsigned upx_crc32(const void *buf, unsigned len, unsigned crc)
+{
+    if (len == 0)
+        return crc;
+    assert(buf != NULL);
+#if 0
+    return crc32(crc, (const Bytef *) buf, len); // zlib
+#elif defined(WITH_UCL)
+    return ucl_crc32(crc, (const ucl_bytep) buf, len);
+#else
+#  error
+#endif
+}
+#endif /* UNUSED */
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_compress           ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf,
+                                   upx_compress_result_t *cresult )
+{
+    int r = UPX_E_ERROR;
+    upx_compress_result_t cresult_buffer;
+
+    assert(method > 0); assert(level > 0);
+
+#if 1
+    // set available bytes in dst
+    if (*dst_len == 0)
+        *dst_len = MemBuffer::getSizeForCompression(src_len);
+#else
+    // force users to provide *dst_len
+    assert(*dst_len != 0);
+#endif
+    // for UPX, we always require a reasonably sized outbut buffer
+    assert(*dst_len >= MemBuffer::getSizeForCompression(src_len));
+
+    if (!cresult)
+        cresult = &cresult_buffer;
+    memset(cresult, 0, sizeof(*cresult));
+#if 1
+    // debug
+    cresult->method = method;
+    cresult->level = level;
+    cresult->u_len = src_len;
+    cresult->c_len = 0;
+#endif
+
+    if (0) {
+    }
+#if defined(WITH_LZMA)
+    else if (M_IS_LZMA(method))
+        r = upx_lzma_compress(src, src_len, dst, dst_len,
+                              cb, method, level, cconf, cresult);
+#endif
+#if defined(WITH_NRV)
+    else if (M_IS_NRV2B(method) || M_IS_NRV2D(method) || M_IS_NRV2E(method))
+        r = upx_nrv_compress(src, src_len, dst, dst_len,
+                             cb, method, level, cconf, cresult);
+#endif
+#if defined(WITH_UCL)
+    else if (M_IS_NRV2B(method) || M_IS_NRV2D(method) || M_IS_NRV2E(method))
+        r = upx_ucl_compress(src, src_len, dst, dst_len,
+                             cb, method, level, cconf, cresult);
+#endif
+    else {
+        throwInternalError("unknown compression method");
+    }
+
+#if 1
+    // debug
+    cresult->c_len = *dst_len;
+#endif
+    return r;
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_decompress         ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    int r = UPX_E_ERROR;
+
+    assert(*dst_len > 0);
+    assert(src_len < *dst_len); // must be compressed
+
+    if (cresult && cresult->method == 0)
+        cresult = NULL;
+
+    if (0) {
+    }
+#if defined(WITH_LZMA)
+    else if (M_IS_LZMA(method))
+        r = upx_lzma_decompress(src, src_len, dst, dst_len, method, cresult);
+#endif
+#if defined(WITH_NRV)
+    else if (M_IS_NRV2B(method) || M_IS_NRV2D(method) || M_IS_NRV2E(method))
+        r = upx_nrv_decompress(src, src_len, dst, dst_len, method, cresult);
+#endif
+#if defined(WITH_UCL)
+    else if (M_IS_NRV2B(method) || M_IS_NRV2D(method) || M_IS_NRV2E(method))
+        r = upx_ucl_decompress(src, src_len, dst, dst_len, method, cresult);
+#endif
+#if defined(WITH_ZLIB)
+    else if (M_IS_DEFLATE(method))
+        r = upx_zlib_decompress(src, src_len, dst, dst_len, method, cresult);
+#endif
+    else {
+        throwInternalError("unknown decompression method");
+    }
+
+    return r;
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_test_overlap       ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    int r = UPX_E_ERROR;
+
+    if (cresult && cresult->method == 0)
+        cresult = NULL;
+
+    assert(*dst_len > 0);
+    assert(src_len < *dst_len); // must be compressed
+    unsigned overlap_overhead = src_off + src_len - *dst_len;
+    assert((int)overlap_overhead > 0);
+
+    if (0) {
+    }
+#if defined(WITH_LZMA)
+    else if (M_IS_LZMA(method))
+        r = upx_lzma_test_overlap(buf, src_off, src_len, dst_len, method, cresult);
+#endif
+#if defined(WITH_NRV)
+    else if (M_IS_NRV2B(method) || M_IS_NRV2D(method) || M_IS_NRV2E(method))
+        r = upx_nrv_test_overlap(buf, src_off, src_len, dst_len, method, cresult);
+#endif
+#if defined(WITH_UCL)
+    else if (M_IS_NRV2B(method) || M_IS_NRV2D(method) || M_IS_NRV2E(method))
+        r = upx_ucl_test_overlap(buf, src_off, src_len, dst_len, method, cresult);
+#endif
+    else {
+        throwInternalError("unknown decompression method");
+    }
+
+    return r;
+}
 
 
 /*

src/compress.h

@@ -0,0 +1,118 @@
+/* compress.h --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+ */
+
+
+#ifndef __UPX_COMPRESS_H
+#define __UPX_COMPRESS_H
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+#if defined(WITH_LZMA)
+const char *upx_lzma_version_string(void);
+int upx_lzma_compress      ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf,
+                                   upx_compress_result_t *cresult );
+int upx_lzma_decompress    ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+int upx_lzma_test_overlap  ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+#endif
+
+
+#if defined(WITH_NRV)
+const char *upx_nrv_version_string(void);
+int upx_nrv_compress       ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf,
+                                   upx_compress_result_t *cresult );
+int upx_nrv_decompress     ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+int upx_nrv_test_overlap   ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+#endif
+
+
+#if defined(WITH_UCL)
+const char *upx_ucl_version_string(void);
+int upx_ucl_compress       ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf,
+                                   upx_compress_result_t *cresult );
+int upx_ucl_decompress     ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+int upx_ucl_test_overlap   ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+#endif
+
+#if defined(WITH_ZLIB)
+const char *upx_zlib_version_string(void);
+int upx_zlib_compress      ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf,
+                                   upx_compress_result_t *cresult );
+int upx_zlib_decompress    ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+int upx_zlib_test_overlap  ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult );
+#endif
+
+
+#endif /* already included */
+
+
+/*
+vi:ts=4:et
+*/
+

src/compress_lzma.cpp

@@ -0,0 +1,527 @@
+/* compress_lzma.cpp --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+ */
+
+
+#include "conf.h"
+#include "compress.h"
+
+
+void lzma_compress_config_t::reset()
+{
+    memset(this, 0, sizeof(*this));
+
+    pos_bits.reset();
+    lit_pos_bits.reset();
+    lit_context_bits.reset();
+    dict_size.reset();
+    fast_mode = 2;
+    num_fast_bytes.reset();
+    match_finder_cycles = 0;
+
+    max_num_probs = 0;
+}
+
+
+#if !defined(WITH_LZMA)
+extern int compress_lzma_dummy;
+int compress_lzma_dummy = 0;
+#else
+
+
+// INFO: the LZMA SDK is covered by a permissive license which allows
+//   using unmodified LZMA source code in UPX and the UPX stubs.
+//   See SPECIAL EXCEPTION below.
+//
+// Quoting from lzma-4.43/lzma.txt:
+//
+//   LICENSE
+//   -------
+//
+//   LZMA SDK is available under any of the following licenses:
+//
+//   1) GNU Lesser General Public License (GNU LGPL)
+//   2) Common Public License (CPL)
+//   3) Simplified license for unmodified code (read SPECIAL EXCEPTION)
+//   4) Proprietary license
+//
+//   It means that you can select one of these four options and follow rules
+//   of that license.
+//
+//   1,2) GNU LGPL and CPL licenses are pretty similar and both these
+//   licenses are classified as
+//    - "Free software licenses" at http://www.gnu.org/
+//    - "OSI-approved" at http://www.opensource.org/
+//
+//   3) SPECIAL EXCEPTION
+//
+//   Igor Pavlov, as the author of this code, expressly permits you
+//   to statically or dynamically link your code (or bind by name)
+//   to the files from LZMA SDK without subjecting your linked
+//   code to the terms of the CPL or GNU LGPL.
+//   Any modifications or additions to files from LZMA SDK, however,
+//   are subject to the GNU LGPL or CPL terms.
+//
+//   SPECIAL EXCEPTION allows you to use LZMA SDK in applications with closed code,
+//   while you keep LZMA SDK code unmodified.
+
+
+/*************************************************************************
+// cruft because of pseudo-COM layer
+**************************************************************************/
+
+#undef USE_LZMA_PROPERTIES
+
+#undef MSDOS
+#undef OS2
+#undef _WIN32
+#undef _WIN32_WCE
+#undef COMPRESS_MF_MT
+#undef _NO_EXCEPTIONS
+#include "C/Common/MyInitGuid.h"
+//#include "C/7zip/Compress/LZMA/LZMADecoder.h"
+#include "C/7zip/Compress/LZMA/LZMAEncoder.h"
+
+namespace MyLzma {
+
+struct InStream: public ISequentialInStream, public CMyUnknownImp
+{
+    MY_UNKNOWN_IMP
+    const Byte *b_buf; size_t b_size; size_t b_pos;
+    void Init(const Byte *data, size_t size) {
+        b_buf = data; b_size = size; b_pos = 0;
+    }
+    STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+};
+
+STDMETHODIMP InStream::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+    size_t remain = b_size - b_pos;
+    if (size > remain) size = (UInt32) remain;
+    memcpy(data, b_buf + b_pos, size);
+    b_pos += size;
+    if (processedSize != NULL) *processedSize = size;
+    return S_OK;
+}
+
+struct OutStream : public ISequentialOutStream, public CMyUnknownImp
+{
+    MY_UNKNOWN_IMP
+    Byte *b_buf; size_t b_size; size_t b_pos; bool overflow;
+    void Init(Byte *data, size_t size) {
+        b_buf = data; b_size = size; b_pos = 0; overflow = false;
+    }
+    HRESULT WriteByte(Byte c) {
+        if (b_pos >= b_size) { overflow = true; return E_FAIL; }
+        b_buf[b_pos++] = c;
+        return S_OK;
+    }
+    STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+};
+
+STDMETHODIMP OutStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
+{
+    size_t remain = b_size - b_pos;
+    if (size > remain) size = (UInt32) remain, overflow = true;
+    memcpy(b_buf + b_pos, data, size);
+    b_pos += size;
+    if (processedSize != NULL) *processedSize = size;
+    return overflow ? E_FAIL : S_OK;
+}
+
+struct ProgressInfo : public ICompressProgressInfo, public CMyUnknownImp
+{
+    MY_UNKNOWN_IMP
+    STDMETHOD(SetRatioInfo)(const UInt64 *inSize, const UInt64 *outSize);
+    upx_callback_p cb;
+};
+
+STDMETHODIMP ProgressInfo::SetRatioInfo(const UInt64 *inSize, const UInt64 *outSize)
+{
+    if (cb && cb->nprogress)
+        cb->nprogress(cb, (unsigned) *inSize, (unsigned) *outSize);
+    return S_OK;
+}
+
+} // namespace
+
+
+#if (ACC_CC_INTELC) && defined(__linux__)
+#  pragma warning(disable: 424)         // #424: extra ";" ignored
+#endif
+
+#include "C/Common/Alloc.cpp"
+#include "C/Common/CRC.cpp"
+//#include "C/7zip/Common/InBuffer.cpp"
+#include "C/7zip/Common/OutBuffer.cpp"
+#include "C/7zip/Common/StreamUtils.cpp"
+#include "C/7zip/Compress/LZ/LZInWindow.cpp"
+//#include "C/7zip/Compress/LZ/LZOutWindow.cpp"
+//#include "C/7zip/Compress/LZMA/LZMADecoder.cpp"
+#include "C/7zip/Compress/LZMA/LZMAEncoder.cpp"
+#include "C/7zip/Compress/RangeCoder/RangeCoderBit.cpp"
+#undef RC_NORMALIZE
+
+
+int upx_lzma_compress      ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf_parm,
+                                   upx_compress_result_t *cresult )
+{
+    assert(M_IS_LZMA(method));
+    assert(level > 0); assert(cresult != NULL);
+
+    int r = UPX_E_ERROR;
+    HRESULT rh;
+    const lzma_compress_config_t *lcconf = cconf_parm ? &cconf_parm->conf_lzma : NULL;
+    lzma_compress_result_t *res = &cresult->result_lzma;
+
+    MyLzma::InStream is; is.AddRef();
+    MyLzma::OutStream os; os.AddRef();
+    is.Init(src, src_len);
+    os.Init(dst, *dst_len);
+
+    MyLzma::ProgressInfo progress; progress.AddRef();
+    progress.cb = cb;
+
+    NCompress::NLZMA::CEncoder enc;
+    const PROPID propIDs[8] = {
+        NCoderPropID::kPosStateBits,        // 0  pb    _posStateBits(2)
+        NCoderPropID::kLitPosBits,          // 1  lp    _numLiteralPosStateBits(0)
+        NCoderPropID::kLitContextBits,      // 2  lc    _numLiteralContextBits(3)
+        NCoderPropID::kDictionarySize,      // 3  ds
+        NCoderPropID::kAlgorithm,           // 4  fm    _fastmode
+        NCoderPropID::kNumFastBytes,        // 5  fb
+        NCoderPropID::kMatchFinderCycles,   // 6  mfc   _matchFinderCycles, _cutValue
+        NCoderPropID::kMatchFinder          // 7  mf
+    };
+    PROPVARIANT pr[8];
+    pr[0].vt = pr[1].vt = pr[2].vt = pr[3].vt = VT_UI4;
+    pr[4].vt = pr[5].vt = pr[6].vt = VT_UI4;
+    pr[7].vt = VT_BSTR;
+
+    // setup defaults
+    pr[0].uintVal = 2;                  // 0 .. 4
+    pr[1].uintVal = 0;                  // 0 .. 4
+    pr[2].uintVal = 3;                  // 0 .. 8
+    pr[3].uintVal = 4 * 1024 * 1024;    // 1 .. 2**30
+    pr[4].uintVal = 2;
+    pr[5].uintVal = 64;                 // 5 .. 273
+    pr[6].uintVal = 0;
+#ifdef COMPRESS_MF_BT4
+    static wchar_t matchfinder[] = L"BT4";
+#endif
+    assert(NCompress::NLZMA::FindMatchFinder(matchfinder) >= 0);
+    pr[7].bstrVal = matchfinder;
+#if 1
+    pr[0].uintVal = lzma_compress_config_t::pos_bits_t::default_value_c;
+    pr[1].uintVal = lzma_compress_config_t::lit_pos_bits_t::default_value_c;
+    pr[2].uintVal = lzma_compress_config_t::lit_context_bits_t::default_value_c;
+    pr[3].uintVal = lzma_compress_config_t::dict_size_t::default_value_c;
+    pr[5].uintVal = lzma_compress_config_t::num_fast_bytes_t::default_value_c;
+#endif
+    // method overrides
+    if (method >= 0x100) {
+        pr[0].uintVal = (method >> 16) & 15;
+        pr[1].uintVal = (method >> 12) & 15;
+        pr[2].uintVal = (method >>  8) & 15;
+    }
+#if 0
+    // DEBUG - set sizes so that we use a maxmimum amount of stack.
+    //  These settings cause res->num_probs == 3147574, i.e. we will
+    //  need about 6 MB of stack during runtime decompression.
+    pr[1].uintVal = 4;
+    pr[2].uintVal = 8;
+#endif
+
+    // FIXME: tune these settings according to level
+    switch (level)
+    {
+    case 1:
+        pr[3].uintVal = 256 * 1024;
+        pr[4].uintVal = 0;
+        pr[5].uintVal = 8;
+        break;
+    case 2:
+        pr[3].uintVal = 256 * 1024;
+        pr[4].uintVal = 0;
+        break;
+    case 3:
+        break;
+    case 4:
+        break;
+    case 5:
+        break;
+    case 6:
+        break;
+    case 7:
+        break;
+    case 8:
+        break;
+    case 9:
+        pr[3].uintVal = 8 * 1024 * 1024;
+        break;
+    case 10:
+        pr[3].uintVal = src_len;
+        break;
+    default:
+        goto error;
+    }
+
+    // cconf overrides
+    if (lcconf)
+    {
+        oassign(pr[0].uintVal, lcconf->pos_bits);
+        oassign(pr[1].uintVal, lcconf->lit_pos_bits);
+        oassign(pr[2].uintVal, lcconf->lit_context_bits);
+        oassign(pr[3].uintVal, lcconf->dict_size);
+        oassign(pr[5].uintVal, lcconf->num_fast_bytes);
+    }
+
+    // limit dictionary size
+    if (pr[3].uintVal > src_len)
+        pr[3].uintVal = src_len;
+
+    // limit num_probs
+    if (lcconf && lcconf->max_num_probs)
+    {
+        for (;;)
+        {
+            unsigned n = 1846 + (768 << (pr[2].uintVal + pr[1].uintVal));
+            if (n <= lcconf->max_num_probs)
+                break;
+            if (pr[1].uintVal > pr[2].uintVal)
+            {
+                if (pr[1].uintVal == 0)
+                    goto error;
+                pr[1].uintVal -= 1;
+            }
+            else
+            {
+                if (pr[2].uintVal == 0)
+                    goto error;
+                pr[2].uintVal -= 1;
+            }
+        }
+    }
+
+    res->pos_bits = pr[0].uintVal;
+    res->lit_pos_bits = pr[1].uintVal;
+    res->lit_context_bits = pr[2].uintVal;
+    res->dict_size = pr[3].uintVal;
+    res->fast_mode = pr[4].uintVal;
+    res->num_fast_bytes = pr[5].uintVal;
+    res->match_finder_cycles = pr[6].uintVal;
+    //res->num_probs = LzmaGetNumProbs(&s.Properties));
+    //res->num_probs = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))
+    res->num_probs = 1846 + (768 << (res->lit_context_bits + res->lit_pos_bits));
+    //printf("\nlzma_compress config: %u %u %u %u %u\n", res->pos_bits, res->lit_pos_bits, res->lit_context_bits, res->dict_size, res->num_probs);
+
+#ifndef _NO_EXCEPTIONS
+    try {
+#else
+#  error
+#endif
+
+    if (enc.SetCoderProperties(propIDs, pr, 8) != S_OK)
+        goto error;
+    if (enc.WriteCoderProperties(&os) != S_OK)
+        goto error;
+    if (os.overflow) {
+        //r = UPX_E_OUTPUT_OVERRUN;
+        r = UPX_E_NOT_COMPRESSIBLE;
+        goto error;
+    }
+    assert(os.b_pos == 5);
+#if defined(USE_LZMA_PROPERTIES)
+    os.b_pos = 1;
+#else
+    os.b_pos = 0;
+    // extra stuff in first byte: 5 high bits convenience for stub decompressor
+    unsigned t = res->lit_context_bits + res->lit_pos_bits;
+    os.WriteByte((t << 3) | res->pos_bits);
+    os.WriteByte((res->lit_pos_bits << 4) | (res->lit_context_bits));
+#endif
+
+    rh = enc.Code(&is, &os, NULL, NULL, &progress);
+
+#ifndef _NO_EXCEPTIONS
+    } catch (...) { rh = E_OUTOFMEMORY; }
+#endif
+
+    assert(is.b_pos <=  src_len);
+    assert(os.b_pos <= *dst_len);
+    if (rh == E_OUTOFMEMORY)
+        r = UPX_E_OUT_OF_MEMORY;
+    else if (os.overflow)
+    {
+        assert(os.b_pos == *dst_len);
+        //r = UPX_E_OUTPUT_OVERRUN;
+        r = UPX_E_NOT_COMPRESSIBLE;
+    }
+    else if (rh == S_OK)
+    {
+        assert(is.b_pos == src_len);
+        r = UPX_E_OK;
+    }
+
+error:
+    *dst_len = os.b_pos;
+    //printf("\nlzma_compress: %d: %u %u %u %u %u, %u - > %u\n", r, res->pos_bits, res->lit_pos_bits, res->lit_context_bits, res->dict_size, res->num_probs, src_len, *dst_len);
+    //printf("%u %u %u\n", is.__m_RefCount, os.__m_RefCount, progress.__m_RefCount);
+    return r;
+}
+
+
+/*************************************************************************
+// decompress
+**************************************************************************/
+
+#undef _LZMA_IN_CB
+#undef _LZMA_OUT_READ
+#undef _LZMA_PROB32
+#undef _LZMA_LOC_OPT
+#include "C/7zip/Compress/LZMA_C/LzmaDecode.h"
+#include "C/7zip/Compress/LZMA_C/LzmaDecode.c"
+
+int upx_lzma_decompress    ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    assert(M_IS_LZMA(method));
+    // see res->num_probs above
+    COMPILE_TIME_ASSERT(sizeof(CProb) == 2)
+    COMPILE_TIME_ASSERT(LZMA_BASE_SIZE == 1846)
+    COMPILE_TIME_ASSERT(LZMA_LIT_SIZE == 768)
+
+    CLzmaDecoderState s; memset(&s, 0, sizeof(s));
+    SizeT src_out = 0, dst_out = 0;
+    int r = UPX_E_ERROR;
+    int rh;
+
+#if defined(USE_LZMA_PROPERTIES)
+    if (src_len < 2)
+        goto error;
+    rh = LzmaDecodeProperties(&s.Properties, src, src_len);
+    if (rh != 0)
+        goto error;
+    src += 1; src_len -= 1;
+#else
+    if (src_len < 3)
+        goto error;
+    s.Properties.pb = src[0] & 7;
+    s.Properties.lp = (src[1] >> 4);
+    s.Properties.lc = src[1] & 15;
+    if (s.Properties.pb >= 5) goto error;
+    if (s.Properties.lp >= 5) goto error;
+    if (s.Properties.lc >= 9) goto error;
+    // extra
+    if ((src[0] >> 3) != s.Properties.lc + s.Properties.lp) goto error;
+    src += 2; src_len -= 2;
+#endif
+
+    if (cresult)
+    {
+        assert(cresult->method == method);
+        assert(cresult->result_lzma.pos_bits == (unsigned) s.Properties.pb);
+        assert(cresult->result_lzma.lit_pos_bits == (unsigned) s.Properties.lp);
+        assert(cresult->result_lzma.lit_context_bits == (unsigned) s.Properties.lc);
+        assert(cresult->result_lzma.num_probs == (unsigned) LzmaGetNumProbs(&s.Properties));
+        const lzma_compress_result_t *res = &cresult->result_lzma;
+        UNUSED(res);
+        //printf("\nlzma_decompress config: %u %u %u %u %u\n", res->pos_bits, res->lit_pos_bits, res->lit_context_bits, res->dict_size, res->num_probs);
+    }
+    s.Probs = (CProb *) malloc(sizeof(CProb) * LzmaGetNumProbs(&s.Properties));
+    if (!s.Probs)
+    {
+        r = UPX_E_OUT_OF_MEMORY;
+        goto error;
+    }
+    rh = LzmaDecode(&s, src, src_len, &src_out, dst, *dst_len, &dst_out);
+    assert(src_out <=  src_len);
+    assert(dst_out <= *dst_len);
+    if (rh == 0)
+    {
+        r = UPX_E_OK;
+        if (src_out != src_len)
+            r = UPX_E_INPUT_NOT_CONSUMED;
+    }
+
+error:
+    *dst_len = dst_out;
+    free(s.Probs);
+
+    UNUSED(cresult);
+    return r;
+}
+
+
+/*************************************************************************
+// test_overlap
+**************************************************************************/
+
+int upx_lzma_test_overlap  ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    assert(M_IS_LZMA(method));
+
+    // FIXME - implement this
+    // Note that Packer::verifyOverlappingDecompression() will
+    // verify the final result in any case.
+    UNUSED(buf);
+
+    unsigned overlap_overhead = src_off + src_len - *dst_len;
+    //printf("upx_lzma_test_overlap: %d\n", overlap_overhead);
+    if ((int)overlap_overhead >= 256)
+        return UPX_E_OK;
+
+    UNUSED(cresult);
+    return UPX_E_ERROR;
+}
+
+
+/*************************************************************************
+// misc
+**************************************************************************/
+
+const char *upx_lzma_version_string(void)
+{
+    // FIXME
+//    return NULL;
+    return "4.43";
+}
+
+
+#endif /* WITH_LZMA */
+/*
+vi:ts=4:et:nowrap
+*/
+

src/compress_ucl.cpp

@@ -0,0 +1,291 @@
+/* compress_ucl.cpp --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+ */
+
+
+#include "conf.h"
+#include "compress.h"
+#if !defined(WITH_UCL)
+extern int compress_ucl_dummy;
+int compress_ucl_dummy = 0;
+#else
+
+#if 1 && !defined(UCL_USE_ASM) && (ACC_ARCH_I386)
+#  if (ACC_CC_GNUC || ACC_CC_INTELC || ACC_CC_MSC || ACC_CC_WATCOMC)
+#    define UCL_USE_ASM
+#  endif
+#endif
+#if defined(UCL_NO_ASM)
+#  undef UCL_USE_ASM
+#endif
+#if defined(ACC_CFG_NO_UNALIGNED)
+#  undef UCL_USE_ASM
+#endif
+#if 1 && defined(UCL_USE_ASM)
+#  include <ucl/ucl_asm.h>
+#  define ucl_nrv2b_decompress_safe_8       ucl_nrv2b_decompress_asm_safe_8
+#  define ucl_nrv2b_decompress_safe_le16    ucl_nrv2b_decompress_asm_safe_le16
+#  define ucl_nrv2b_decompress_safe_le32    ucl_nrv2b_decompress_asm_safe_le32
+#  define ucl_nrv2d_decompress_safe_8       ucl_nrv2d_decompress_asm_safe_8
+#  define ucl_nrv2d_decompress_safe_le16    ucl_nrv2d_decompress_asm_safe_le16
+#  define ucl_nrv2d_decompress_safe_le32    ucl_nrv2d_decompress_asm_safe_le32
+#  define ucl_nrv2e_decompress_safe_8       ucl_nrv2e_decompress_asm_safe_8
+#  define ucl_nrv2e_decompress_safe_le16    ucl_nrv2e_decompress_asm_safe_le16
+#  define ucl_nrv2e_decompress_safe_le32    ucl_nrv2e_decompress_asm_safe_le32
+#endif
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+static int convert_errno_from_ucl(int r)
+{
+    switch (r)
+    {
+    case UCL_E_OK:                  return UPX_E_OK;
+    case UCL_E_ERROR:               return UPX_E_ERROR;
+    case UCL_E_OUT_OF_MEMORY:       return UPX_E_OUT_OF_MEMORY;
+    case UCL_E_NOT_COMPRESSIBLE:    return UPX_E_NOT_COMPRESSIBLE;
+    case UCL_E_INPUT_OVERRUN:       return UPX_E_INPUT_OVERRUN;
+    case UCL_E_OUTPUT_OVERRUN:      return UPX_E_OUTPUT_OVERRUN;
+    case UCL_E_LOOKBEHIND_OVERRUN:  return UPX_E_LOOKBEHIND_OVERRUN;
+    case UCL_E_EOF_NOT_FOUND:       return UPX_E_EOF_NOT_FOUND;
+    case UCL_E_INPUT_NOT_CONSUMED:  return UPX_E_INPUT_NOT_CONSUMED;
+//  case UCL_E_NOT_YET_IMPLEMENTED: return UPX_E_NOT_YET_IMPLEMENTED;
+    case UCL_E_INVALID_ARGUMENT:    return UPX_E_INVALID_ARGUMENT;
+    // UCL extra:
+    case UCL_E_OVERLAP_OVERRUN:     return UPX_E_ERROR;
+    }
+    return UPX_E_ERROR;
+}
+
+
+extern "C" {
+static void wrap_nprogress_ucl(ucl_uint a, ucl_uint b, int state, ucl_voidp user)
+{
+    if (state != -1 && state != 3) return;
+    upx_callback_p cb = (upx_callback_p) user;
+    if (cb && cb->nprogress)
+        cb->nprogress(cb, a, b);
+}}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_ucl_compress       ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb_parm,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf_parm,
+                                   upx_compress_result_t *cresult )
+{
+    int r;
+    assert(level > 0); assert(cresult != NULL);
+
+    COMPILE_TIME_ASSERT(sizeof(ucl_compress_config_t) == sizeof(REAL_ucl_compress_config_t))
+
+    ucl_progress_callback_t cb;
+    cb.callback = 0;
+    cb.user = NULL;
+    if (cb_parm && cb_parm->nprogress) {
+        cb.callback = wrap_nprogress_ucl;
+        cb.user = cb_parm;
+    }
+
+    ucl_compress_config_t cconf; cconf.reset();
+    if (cconf_parm)
+        cconf = cconf_parm->conf_ucl; // struct copy
+
+    ucl_uint *res = cresult->result_ucl.result;
+    // assume no info available - fill in worst case results
+    //res[0] = 1;                 // min_offset_found - NOT USED
+    res[1] = src_len - 1;       // max_offset_found
+    //res[2] = 2;                 // min_match_found - NOT USED
+    res[3] = src_len - 1;       // max_match_found
+    //res[4] = 1;                 // min_run_found - NOT USED
+    res[5] = src_len;           // max_run_found
+    res[6] = 1;                 // first_offset_found
+    //res[7] = 999999;            // same_match_offsets_found - NOT USED
+
+    // prepare bit-buffer settings
+    cconf.bb_endian = 0;
+    cconf.bb_size = 0;
+    if (method >= M_NRV2B_LE32 && method <= M_NRV2E_LE16)
+    {
+        static const unsigned char sizes[3] = {32, 8, 16};
+        cconf.bb_size = sizes[(method - M_NRV2B_LE32) % 3];
+    }
+    else {
+        throwInternalError("unknown compression method");
+        return UPX_E_ERROR;
+    }
+
+    // optimize compression parms
+    if (level <= 3 && cconf.max_offset == UCL_UINT_MAX)
+        cconf.max_offset = 8*1024-1;
+    else if (level == 4 && cconf.max_offset == UCL_UINT_MAX)
+        cconf.max_offset = 32*1024-1;
+
+    if M_IS_NRV2B(method)
+        r = ucl_nrv2b_99_compress(src, src_len, dst, dst_len,
+                                  &cb, level, &cconf, res);
+    else if M_IS_NRV2D(method)
+        r = ucl_nrv2d_99_compress(src, src_len, dst, dst_len,
+                                  &cb, level, &cconf, res);
+    else if M_IS_NRV2E(method)
+        r = ucl_nrv2e_99_compress(src, src_len, dst, dst_len,
+                                  &cb, level, &cconf, res);
+    else {
+        throwInternalError("unknown compression method");
+        return UPX_E_ERROR;
+    }
+
+    // make sure first_offset_found is set
+    if (res[6] == 0)
+        res[6] = 1;
+
+    return convert_errno_from_ucl(r);
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_ucl_decompress     ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    int r;
+
+    switch (method)
+    {
+    case M_NRV2B_8:
+        r = ucl_nrv2b_decompress_safe_8(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2B_LE16:
+        r = ucl_nrv2b_decompress_safe_le16(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2B_LE32:
+        r = ucl_nrv2b_decompress_safe_le32(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2D_8:
+        r = ucl_nrv2d_decompress_safe_8(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2D_LE16:
+        r = ucl_nrv2d_decompress_safe_le16(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2D_LE32:
+        r = ucl_nrv2d_decompress_safe_le32(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2E_8:
+        r = ucl_nrv2e_decompress_safe_8(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2E_LE16:
+        r = ucl_nrv2e_decompress_safe_le16(src,src_len,dst,dst_len,NULL);
+        break;
+    case M_NRV2E_LE32:
+        r = ucl_nrv2e_decompress_safe_le32(src,src_len,dst,dst_len,NULL);
+        break;
+    default:
+        throwInternalError("unknown decompression method");
+        return UPX_E_ERROR;
+    }
+
+    UNUSED(cresult);
+    return convert_errno_from_ucl(r);
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_ucl_test_overlap   ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    int r;
+
+    switch (method)
+    {
+    case M_NRV2B_8:
+        r = ucl_nrv2b_test_overlap_8(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2B_LE16:
+        r = ucl_nrv2b_test_overlap_le16(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2B_LE32:
+        r = ucl_nrv2b_test_overlap_le32(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2D_8:
+        r = ucl_nrv2d_test_overlap_8(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2D_LE16:
+        r = ucl_nrv2d_test_overlap_le16(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2D_LE32:
+        r = ucl_nrv2d_test_overlap_le32(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2E_8:
+        r = ucl_nrv2e_test_overlap_8(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2E_LE16:
+        r = ucl_nrv2e_test_overlap_le16(buf,src_off,src_len,dst_len,NULL);
+        break;
+    case M_NRV2E_LE32:
+        r = ucl_nrv2e_test_overlap_le32(buf,src_off,src_len,dst_len,NULL);
+        break;
+    default:
+        throwInternalError("unknown decompression method");
+        return UPX_E_ERROR;
+    }
+
+    UNUSED(cresult);
+    return convert_errno_from_ucl(r);
+}
+
+
+/*************************************************************************
+// misc
+**************************************************************************/
+
+const char *upx_ucl_version_string(void)
+{
+    return ucl_version_string();
+}
+
+
+#endif /* WITH_UCL */
+/*
+vi:ts=4:et:nowrap
+*/
+

src/compress_zlib.cpp

@@ -0,0 +1,230 @@
+/* compress_zlib.cpp --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+ */
+
+
+#include "conf.h"
+#include "compress.h"
+
+
+void zlib_compress_config_t::reset()
+{
+    memset(this, 0, sizeof(*this));
+
+    mem_level.reset();
+    window_bits.reset();
+    strategy.reset();
+}
+
+
+#if !defined(WITH_ZLIB)
+extern int compress_zlib_dummy;
+int compress_zlib_dummy = 0;
+#else
+
+#include <zlib.h>
+
+
+static int convert_errno_from_zlib(int zr)
+{
+    switch (zr)
+    {
+    case Z_OK:                  return UPX_E_OK;
+    case Z_DATA_ERROR:          return UPX_E_ERROR;
+    case Z_NEED_DICT:           return UPX_E_ERROR;
+    }
+    return UPX_E_ERROR;
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_zlib_compress      ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   upx_callback_p cb_parm,
+                                   int method, int level,
+                             const upx_compress_config_t *cconf_parm,
+                                   upx_compress_result_t *cresult )
+{
+    assert(method == M_DEFLATE);
+    assert(level > 0); assert(cresult != NULL);
+    UNUSED(cb_parm);
+    int r = UPX_E_ERROR;
+    int zr;
+    const zlib_compress_config_t *lcconf = cconf_parm ? &cconf_parm->conf_zlib : NULL;
+    zlib_compress_result_t *res = &cresult->result_zlib;
+
+    if (level == 10)
+        level = 9;
+
+    zlib_compress_config_t::mem_level_t mem_level;
+    zlib_compress_config_t::window_bits_t window_bits;
+    zlib_compress_config_t::strategy_t strategy;
+    // cconf overrides
+    if (lcconf)
+    {
+        oassign(mem_level, lcconf->mem_level);
+        oassign(window_bits, lcconf->window_bits);
+        oassign(strategy, lcconf->strategy);
+    }
+
+    res->dummy = 0;
+
+    z_stream s;
+    s.zalloc = (alloc_func) 0;
+    s.zfree = (free_func) 0;
+    s.next_in = const_cast<upx_bytep>(src); // UNCONST
+    s.avail_in = src_len;
+    s.next_out = dst;
+    s.avail_out = *dst_len;
+    s.total_in = s.total_out = 0;
+
+    zr = deflateInit2(&s, level, Z_DEFLATED, 0 - (int)window_bits,
+                      mem_level, strategy);
+    if (zr != Z_OK)
+        goto error;
+    zr = deflate(&s, Z_FINISH);
+    if (zr != Z_STREAM_END)
+        goto error;
+    zr = deflateEnd(&s);
+    if (zr != Z_OK)
+        goto error;
+    r = UPX_E_OK;
+    goto done;
+error:
+    (void) deflateEnd(&s);
+    r = convert_errno_from_zlib(zr);
+    if (r == UPX_E_OK)
+        r = UPX_E_ERROR;
+done:
+    if (r == UPX_E_OK)
+    {
+        if (s.avail_in != 0 || s.total_in != src_len)
+            r = UPX_E_ERROR;
+    }
+    assert(s.total_in  <=  src_len);
+    assert(s.total_out <= *dst_len);
+    *dst_len = s.total_out;
+    return r;
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int upx_zlib_decompress    ( const upx_bytep src, unsigned  src_len,
+                                   upx_bytep dst, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    assert(method == M_DEFLATE);
+    UNUSED(method);
+    UNUSED(cresult);
+    int r = UPX_E_ERROR;
+    int zr;
+
+    z_stream s;
+    s.zalloc = (alloc_func) 0;
+    s.zfree = (free_func) 0;
+    s.next_in = const_cast<upx_bytep>(src); // UNCONST
+    s.avail_in = src_len;
+    s.next_out = dst;
+    s.avail_out = *dst_len;
+    s.total_in = s.total_out = 0;
+
+    zr = inflateInit2(&s, -15);
+    if (zr != Z_OK)
+        goto error;
+    zr = inflate(&s, Z_FINISH);
+    if (zr != Z_STREAM_END)
+        goto error;
+    zr = inflateEnd(&s);
+    if (zr != Z_OK)
+        goto error;
+    r = UPX_E_OK;
+    goto done;
+error:
+    (void) inflateEnd(&s);
+    r = convert_errno_from_zlib(zr);
+    if (r == UPX_E_OK)
+        r = UPX_E_ERROR;
+done:
+    if (r == UPX_E_OK)
+    {
+        if (s.avail_in != 0 || s.total_in != src_len)
+            r = UPX_E_INPUT_NOT_CONSUMED;
+    }
+    assert(s.total_in  <=  src_len);
+    assert(s.total_out <= *dst_len);
+    *dst_len = s.total_out;
+    return r;
+}
+
+
+/*************************************************************************
+// test_overlap
+**************************************************************************/
+
+int upx_zlib_test_overlap  ( const upx_bytep buf, unsigned src_off,
+                                   unsigned  src_len, unsigned* dst_len,
+                                   int method,
+                             const upx_compress_result_t *cresult )
+{
+    assert(method == M_DEFLATE);
+
+    // FIXME - implement this
+    // Note that Packer::verifyOverlappingDecompression() will
+    // verify the final result in any case.
+    UNUSED(buf);
+
+    unsigned overlap_overhead = src_off + src_len - *dst_len;
+    //printf("upx_zlib_test_overlap: %d\n", overlap_overhead);
+    if ((int)overlap_overhead >= 256)
+        return UPX_E_OK;
+
+    UNUSED(cresult);
+    return UPX_E_ERROR;
+}
+
+
+/*************************************************************************
+// misc
+**************************************************************************/
+
+const char *upx_zlib_version_string(void)
+{
+    return zlibVersion();
+}
+
+
+#endif /* WITH_ZLIB */
+/*
+vi:ts=4:et:nowrap
+*/
+

src/config_h/linux.h

@@ -1,229 +0,0 @@
-/* pseudo <config.h> for Linux */
-
-#ifndef __UPX_CONFIG_H
-#define __UPX_CONFIG_H
-
-/* $TOP$ */
-
-/* Define to empty if the keyword does not work.  */
-/* #undef const */
-
-/* Define if your C compiler doesn't accept -c and -o together.  */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* Define as the return type of signal handlers (int or void).  */
-#define RETSIGTYPE void
-
-/* Define to `unsigned' if <sys/types.h> doesn't define.  */
-/* #undef size_t */
-
-/* Define if you have the ANSI C header files.  */
-#define STDC_HEADERS 1
-
-/* Define if you can safely include both <sys/time.h> and <time.h>.  */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define if your memcmp is broken.  */
-/* #undef NO_MEMCMP */
-
-/* Define to `long' if <stddef.h> doesn't define.  */
-/* #undef ptrdiff_t */
-
-/* Define when using the dmalloc package.  */
-/* #undef WITH_DMALLOC */
-
-/* Define if you have the access function.  */
-#define HAVE_ACCESS 1
-
-/* Define if you have the atoi function.  */
-#define HAVE_ATOI 1
-
-/* Define if you have the chmod function.  */
-#define HAVE_CHMOD 1
-
-/* Define if you have the chown function.  */
-#define HAVE_CHOWN 1
-
-/* Define if you have the ctime function.  */
-#define HAVE_CTIME 1
-
-/* Define if you have the difftime function.  */
-#define HAVE_DIFFTIME 1
-
-/* Define if you have the fchmod function.  */
-#define HAVE_FCHMOD 1
-
-/* Define if you have the fileno function.  */
-#define HAVE_FILENO 1
-
-/* Define if you have the fstat function.  */
-#define HAVE_FSTAT 1
-
-/* Define if you have the XXX function.  */
-#define HAVE_GETPID 1
-
-/* Define if you have the XXX function.  */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define if you have the getumask function.  */
-/* #undef HAVE_GETUMASK */
-
-/* Define if you have the gmtime function.  */
-#define HAVE_GMTIME 1
-
-/* Define if you have the index function.  */
-#define HAVE_INDEX 1
-
-/* Define if you have the isatty function.  */
-#define HAVE_ISATTY 1
-
-/* Define if you have the lstat function.  */
-#define HAVE_LSTAT 1
-
-/* Define if you have the localtime function.  */
-#define HAVE_LOCALTIME 1
-
-/* Define if you have the memcmp function.  */
-#define HAVE_MEMCMP 1
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
-
-/* Define if you have the memmove function.  */
-#define HAVE_MEMMOVE 1
-
-/* Define if you have the memset function.  */
-#define HAVE_MEMSET 1
-
-/* Define if you have the mktime function.  */
-#define HAVE_MKTIME 1
-
-/* Define if you have the setmode function.  */
-/* #undef HAVE_SETMODE */
-
-/* Define if you have the stat function.  */
-#define HAVE_STAT 1
-
-/* Define if you have the strcasecmp function.  */
-#define HAVE_STRCASECMP 1
-
-/* Define if you have the strchr function.  */
-#define HAVE_STRCHR 1
-
-/* Define if you have the strdup function.  */
-#define HAVE_STRDUP 1
-
-/* Define if you have the strftime function.  */
-#define HAVE_STRFTIME 1
-
-/* Define if you have the stricmp function.  */
-/* #undef HAVE_STRICMP */
-
-/* Define if you have the strncasecmp function.  */
-#define HAVE_STRNCASECMP 1
-
-/* Define if you have the strnicmp function.  */
-/* #undef HAVE_STRNICMP */
-
-/* Define if you have the strstr function.  */
-#define HAVE_STRSTR 1
-
-/* Define if you have the tzset function.  */
-#define HAVE_TZSET 1
-
-/* Define if you have the umask function.  */
-#define HAVE_UMASK 1
-
-/* Define if you have the utime function.  */
-#define HAVE_UTIME 1
-
-/* Define if you have the vsnprintf function.  */
-#define HAVE_VSNPRINTF 1
-
-/* Define if you have the <assert.h> header file.  */
-#define HAVE_ASSERT_H 1
-
-/* Define if you have the <ctype.h> header file.  */
-#define HAVE_CTYPE_H 1
-
-/* Define if you have the <curses.h> header file.  */
-#define HAVE_CURSES_H 1
-
-/* Define if you have the <limits.h> header file.  */
-#define HAVE_LIMITS_H 1
-
-/* Define if you have the <linux/kd.h> header file.  */
-#define HAVE_LINUX_KD_H 1
-
-/* Define if you have the <linux/kdev_t.h> header file.  */
-#define HAVE_LINUX_KDEV_T_H 1
-
-/* Define if you have the <linux/major.h> header file.  */
-#define HAVE_LINUX_MAJOR_H 1
-
-/* Define if you have the <memory.h> header file.  */
-#define HAVE_MEMORY_H 1
-
-/* Define if you have the <ncurses.h> header file.  */
-#define HAVE_NCURSES_H 1
-
-/* Define if you have the <signal.h> header file.  */
-#define HAVE_SIGNAL_H 1
-
-/* Define if you have the <stddef.h> header file.  */
-#define HAVE_STDDEF_H 1
-
-/* Define if you have the <stdint.h> header file.  */
-#define HAVE_STDINT_H 1
-
-/* Define if you have the <sys/param.h> header file.  */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define if you have the <sys/resource.h> header file.  */
-#define HAVE_SYS_RESOURCE_H 1
-
-/* Define if you have the <sys/time.h> header file.  */
-#define HAVE_SYS_TIME_H 1
-
-/* Define if you have the <sys/times.h> header file.  */
-#define HAVE_SYS_TIMES_H 1
-
-/* Define if you have the <sys/utime.h> header file.  */
-/* #undef HAVE_SYS_UTIME_H */
-
-/* Define if you have the <time.h> header file.  */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file.  */
-#define HAVE_UNISTD_H 1
-
-/* Define if you have the <utime.h> header file.  */
-#define HAVE_UTIME_H 1
-
-/* $BOTTOM$ */
-
-#if defined(HAVE_GMTIME) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_GMTIME
-#endif
-
-#if defined(HAVE_LOCALTIME) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_LOCALTIME
-#endif
-
-#if defined(HAVE_STRFTIME) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_STRFTIME
-#endif
-
-#if defined(HAVE_SYS_RESOURCE_H) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_SYS_RESOURCE_H
-#endif
-
-#if defined(HAVE_SYS_TIMES_H) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_SYS_TIMES_H
-#endif
-
-#endif /* already included */
-
-/*
-vi:ts=4
-*/

src/config_h/sparc_sun_solaris28.h

@@ -1,226 +0,0 @@
-/* pseudo <config.h> for sparc-sun-solaris2.8 */
-
-#ifndef __UPX_CONFIG_H
-#define __UPX_CONFIG_H
-
-/* $TOP$ */
-
-/* Define to empty if the keyword does not work.  */
-/* #undef const */
-
-/* Define if your C compiler doesn't accept -c and -o together.  */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* Define as the return type of signal handlers (int or void).  */
-#define RETSIGTYPE void
-
-/* Define to `unsigned' if <sys/types.h> doesn't define.  */
-/* #undef size_t */
-
-/* Define if you have the ANSI C header files.  */
-#define STDC_HEADERS 1
-
-/* Define if you can safely include both <sys/time.h> and <time.h>.  */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define if your memcmp is broken.  */
-/* #undef NO_MEMCMP */
-
-/* Define to `long' if <stddef.h> doesn't define.  */
-/* #undef ptrdiff_t */
-
-/* Define when using the dmalloc package.  */
-/* #undef WITH_DMALLOC */
-
-/* Define if you have the access function.  */
-#define HAVE_ACCESS 1
-
-/* Define if you have the atoi function.  */
-#define HAVE_ATOI 1
-
-/* Define if you have the chmod function.  */
-#define HAVE_CHMOD 1
-
-/* Define if you have the chown function.  */
-#define HAVE_CHOWN 1
-
-/* Define if you have the ctime function.  */
-#define HAVE_CTIME 1
-
-/* Define if you have the difftime function.  */
-#define HAVE_DIFFTIME 1
-
-/* Define if you have the fchmod function.  */
-#define HAVE_FCHMOD 1
-
-/* Define if you have the fileno function.  */
-#define HAVE_FILENO 1
-
-/* Define if you have the fstat function.  */
-#define HAVE_FSTAT 1
-
-/* Define if you have the XXX function.  */
-#define HAVE_GETPID 1
-
-/* Define if you have the XXX function.  */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define if you have the getumask function.  */
-/* #undef HAVE_GETUMASK */
-
-/* Define if you have the gmtime function.  */
-#define HAVE_GMTIME 1
-
-/* Define if you have the index function.  */
-#define HAVE_INDEX 1
-
-/* Define if you have the isatty function.  */
-#define HAVE_ISATTY 1
-
-/* Define if you have the lstat function.  */
-#define HAVE_LSTAT 1
-
-/* Define if you have the localtime function.  */
-#define HAVE_LOCALTIME 1
-
-/* Define if you have the memcmp function.  */
-#define HAVE_MEMCMP 1
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
-
-/* Define if you have the memmove function.  */
-#define HAVE_MEMMOVE 1
-
-/* Define if you have the memset function.  */
-#define HAVE_MEMSET 1
-
-/* Define if you have the mktime function.  */
-#define HAVE_MKTIME 1
-
-/* Define if you have the setmode function.  */
-/* #undef HAVE_SETMODE */
-
-/* Define if you have the stat function.  */
-#define HAVE_STAT 1
-
-/* Define if you have the strcasecmp function.  */
-#define HAVE_STRCASECMP 1
-
-/* Define if you have the strchr function.  */
-#define HAVE_STRCHR 1
-
-/* Define if you have the strdup function.  */
-#define HAVE_STRDUP 1
-
-/* Define if you have the strftime function.  */
-#define HAVE_STRFTIME 1
-
-/* Define if you have the stricmp function.  */
-/* #undef HAVE_STRICMP */
-
-/* Define if you have the strncasecmp function.  */
-#define HAVE_STRNCASECMP 1
-
-/* Define if you have the strnicmp function.  */
-/* #undef HAVE_STRNICMP */
-
-/* Define if you have the strstr function.  */
-#define HAVE_STRSTR 1
-
-/* Define if you have the tzset function.  */
-#define HAVE_TZSET 1
-
-/* Define if you have the umask function.  */
-#define HAVE_UMASK 1
-
-/* Define if you have the utime function.  */
-#define HAVE_UTIME 1
-
-/* Define if you have the vsnprintf function.  */
-#define HAVE_VSNPRINTF 1
-
-/* Define if you have the <assert.h> header file.  */
-#define HAVE_ASSERT_H 1
-
-/* Define if you have the <ctype.h> header file.  */
-#define HAVE_CTYPE_H 1
-
-/* Define if you have the <curses.h> header file.  */
-#define HAVE_CURSES_H 1
-
-/* Define if you have the <limits.h> header file.  */
-#define HAVE_LIMITS_H 1
-
-/* Define if you have the <linux/kd.h> header file.  */
-#define HAVE_LINUX_KD_H 1
-
-/* Define if you have the <linux/kdev_t.h> header file.  */
-#define HAVE_LINUX_KDEV_T_H 1
-
-/* Define if you have the <linux/major.h> header file.  */
-#define HAVE_LINUX_MAJOR_H 1
-
-/* Define if you have the <memory.h> header file.  */
-#define HAVE_MEMORY_H 1
-
-/* Define if you have the <ncurses.h> header file.  */
-#define HAVE_NCURSES_H 1
-
-/* Define if you have the <signal.h> header file.  */
-#define HAVE_SIGNAL_H 1
-
-/* Define if you have the <stddef.h> header file.  */
-#define HAVE_STDDEF_H 1
-
-/* Define if you have the <sys/param.h> header file.  */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define if you have the <sys/resource.h> header file.  */
-#define HAVE_SYS_RESOURCE_H 1
-
-/* Define if you have the <sys/time.h> header file.  */
-#define HAVE_SYS_TIME_H 1
-
-/* Define if you have the <sys/times.h> header file.  */
-#define HAVE_SYS_TIMES_H 1
-
-/* Define if you have the <sys/utime.h> header file.  */
-/* #undef HAVE_SYS_UTIME_H */
-
-/* Define if you have the <time.h> header file.  */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file.  */
-#define HAVE_UNISTD_H 1
-
-/* Define if you have the <utime.h> header file.  */
-#define HAVE_UTIME_H 1
-
-/* $BOTTOM$ */
-
-#if defined(HAVE_GMTIME) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_GMTIME
-#endif
-
-#if defined(HAVE_LOCALTIME) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_LOCALTIME
-#endif
-
-#if defined(HAVE_STRFTIME) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_STRFTIME
-#endif
-
-#if defined(HAVE_SYS_RESOURCE_H) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_SYS_RESOURCE_H
-#endif
-
-#if defined(HAVE_SYS_TIMES_H) && !defined(TIME_WITH_SYS_TIME)
-#  undef /**/ HAVE_SYS_TIMES_H
-#endif
-
-#endif /* already included */
-
-/*
-vi:ts=4
-*/

src/console.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -34,8 +34,9 @@
 #undef USE_CONSOLE
 #undef USE_ANSI
 #undef USE_SCREEN
-#undef USE_SCREEN_VCSA
 #undef USE_SCREEN_CURSES
+#undef USE_SCREEN_VCSA
+#undef USE_SCREEN_WIN32
 #undef USE_FRAMES
 
 #if defined(WITH_GUI) && !defined(NO_CONSOLE)
@@ -57,10 +58,12 @@
 
 #if 1 && defined(__DJGPP__)
 #  define USE_SCREEN
-#endif
+#elif 1 && (ACC_OS_CYGWIN || ACC_OS_WIN32 || ACC_OS_WIN64)
-
-#if 1 && defined(__MFX_WIN32)
 #  define USE_SCREEN
+#  define USE_SCREEN_WIN32
+#elif 1 && (ACC_OS_EMX && defined(__RSXNT__))
+#  define USE_SCREEN
+#  define USE_SCREEN_WIN32
 #endif
 
 
@@ -114,16 +117,16 @@ typedef struct
     int (*init)(FILE *f, int, int);
     int (*set_fg)(FILE *f, int fg);
     void (*print0)(FILE *f, const char *s);
-    upx_bool (*intro)(FILE *f);
+    bool (*intro)(FILE *f);
 }
 console_t;
 
 
 #if defined(__GNUC__)
-void con_fprintf(FILE *f, const char *format, ...)
+void __acc_cdecl_va con_fprintf(FILE *f, const char *format, ...)
-        __attribute__((format(printf,2,3)));
+        __attribute__((__format__(printf,2,3)));
 #else
-void con_fprintf(FILE *f, const char *format, ...);
+void __acc_cdecl_va con_fprintf(FILE *f, const char *format, ...);
 #endif
 
 

src/except.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -35,7 +35,7 @@
 
 long Throwable::counter = 0;
 
-Throwable::Throwable(const char *m, int e, bool w)
+Throwable::Throwable(const char *m, int e, bool w) NOTHROW
     : super(), msg(NULL), err(e), is_warning(w)
 {
     if (m)
@@ -47,7 +47,7 @@ Throwable::Throwable(const char *m, int e, bool w)
 }
 
 
-Throwable::Throwable(Throwable const &other)
+Throwable::Throwable(const Throwable &other) NOTHROW
     : super(other), msg(NULL), err(other.err), is_warning(other.is_warning)
 {
     if (other.msg)
@@ -85,6 +85,11 @@ void throwCantPack(const char *msg)
         throw CantUnpackException(msg);
 }
 
+void throwCantPackExact()
+{
+    throwCantPack("option '--exact' does not work with this file");
+}
+
 void throwFilterException()
 {
     throwCantPack("filter problem");
@@ -174,22 +179,24 @@ void throwEOFException(const char *msg, int e)
 //
 **************************************************************************/
 
-const char *prettyName(const char *n)
+const char *prettyName(const char *n) NOTHROW
 {
     if (n == NULL)
-        return "";
+        return "(null)";
-    while (*n >= '0' && *n <= '9')              // gcc
+    while (*n)
-        n++;
+    {
-    if (strncmp(n, "class ", 6) == 0)           // Visual C++
+        if (*n >= '0' && *n <= '9')             // Linux ABI
-        n += 6;
+            n++;
+        else if (*n == ' ')
+            n++;
+        else if (strncmp(n, "class ", 6) == 0)  // Visual C++
+            n += 6;
+        else
+            break;
+    }
     return n;
 }
 
-const char *prettyName(const std::type_info &ti)
-{
-    return prettyName(ti.name());
-}
-
 
 /*
 vi:ts=4:et

src/except.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -31,8 +31,7 @@
 
 #ifdef __cplusplus
 
-const char *prettyName(const char *n);
+const char *prettyName(const char *n) NOTHROW;
-const char *prettyName(const std::type_info &ti);
 
 
 /*************************************************************************
@@ -43,13 +42,13 @@ class Throwable : public std::exception
 {
     typedef std::exception super;
 protected:
-    Throwable(const char *m = 0, int e = 0, bool w = false);
+    Throwable(const char *m = 0, int e = 0, bool w = false) NOTHROW;
 public:
-    Throwable(Throwable const &);
+    Throwable(const Throwable &) NOTHROW;
     virtual ~Throwable() NOTHROW;
-    const char *getMsg() const { return msg; }
+    const char *getMsg() const NOTHROW { return msg; }
-    int getErrno() const { return err; }
+    int getErrno() const NOTHROW { return err; }
-    bool isWarning() const { return is_warning; }
+    bool isWarning() const NOTHROW { return is_warning; }
 private:
     char *msg;
     int err;
@@ -58,12 +57,9 @@ protected:
 
 private:
     // disable assignment
-    Throwable& operator= (Throwable const &);
+    Throwable& operator= (const Throwable &);
     // disable dynamic allocation
-#ifndef new
+    DISABLE_NEW_DELETE
-    static void *operator new (size_t); // {}
-    static void *operator new[] (size_t); // {}
-#endif
 
 private:
     static long counter;                // for debugging
@@ -75,7 +71,7 @@ class Exception : public Throwable
 {
     typedef Throwable super;
 public:
-    Exception(const char *m = 0, int e = 0, bool w = false) : super(m,e,w) { }
+    Exception(const char *m = 0, int e = 0, bool w = false) NOTHROW : super(m,e,w) { }
 };
 
 
@@ -84,7 +80,7 @@ class Error : public Throwable
 {
     typedef Throwable super;
 public:
-    Error(const char *m = 0, int e = 0) : super(m,e) { }
+    Error(const char *m = 0, int e = 0) NOTHROW : super(m,e) { }
 };
 
 
@@ -96,7 +92,7 @@ class OutOfMemoryException : public Exception
 {
     typedef Exception super;
 public:
-    OutOfMemoryException(const char *m = 0, int e = 0) : super(m,e) { }
+    OutOfMemoryException(const char *m = 0, int e = 0) NOTHROW : super(m,e) { }
 };
 
 
@@ -104,7 +100,7 @@ class IOException : public Exception
 {
     typedef Exception super;
 public:
-    IOException(const char *m = 0, int e = 0) : super(m,e) { }
+    IOException(const char *m = 0, int e = 0) NOTHROW : super(m,e) { }
 };
 
 
@@ -112,7 +108,7 @@ class EOFException : public IOException
 {
     typedef IOException super;
 public:
-    EOFException(const char *m = 0, int e = 0) : super(m,e) { }
+    EOFException(const char *m = 0, int e = 0) NOTHROW : super(m,e) { }
 };
 
 
@@ -120,7 +116,7 @@ class FileNotFoundException : public IOException
 {
     typedef IOException super;
 public:
-    FileNotFoundException(const char *m = 0, int e = 0) : super(m,e) { }
+    FileNotFoundException(const char *m = 0, int e = 0) NOTHROW : super(m,e) { }
 };
 
 
@@ -128,7 +124,7 @@ class FileAlreadyExistsException : public IOException
 {
     typedef IOException super;
 public:
-    FileAlreadyExistsException(const char *m = 0, int e = 0) : super(m,e) { }
+    FileAlreadyExistsException(const char *m = 0, int e = 0) NOTHROW : super(m,e) { }
 };
 
 
@@ -140,35 +136,35 @@ class OverlayException : public Exception
 {
     typedef Exception super;
 public:
-    OverlayException(const char *m = 0, bool w = false) : super(m,0,w) { }
+    OverlayException(const char *m = 0, bool w = false) NOTHROW : super(m,0,w) { }
 };
 
 class CantPackException : public Exception
 {
     typedef Exception super;
 public:
-    CantPackException(const char *m = 0, bool w = false) : super(m,0,w) { }
+    CantPackException(const char *m = 0, bool w = false) NOTHROW : super(m,0,w) { }
 };
 
 class UnknownExecutableFormatException : public CantPackException
 {
     typedef CantPackException super;
 public:
-    UnknownExecutableFormatException(const char *m = 0, bool w = false) : super(m,w) { }
+    UnknownExecutableFormatException(const char *m = 0, bool w = false) NOTHROW : super(m,w) { }
 };
 
 class AlreadyPackedException : public CantPackException
 {
     typedef CantPackException super;
 public:
-    AlreadyPackedException(const char *m = 0) : super(m) { is_warning = true; }
+    AlreadyPackedException(const char *m = 0) NOTHROW : super(m) { is_warning = true; }
 };
 
 class NotCompressibleException : public CantPackException
 {
     typedef CantPackException super;
 public:
-    NotCompressibleException(const char *m = 0) : super(m) { }
+    NotCompressibleException(const char *m = 0) NOTHROW : super(m) { }
 };
 
 
@@ -176,14 +172,14 @@ class CantUnpackException : public Exception
 {
     typedef Exception super;
 public:
-    CantUnpackException(const char *m = 0, bool w = false) : super(m,0,w) { }
+    CantUnpackException(const char *m = 0, bool w = false) NOTHROW : super(m,0,w) { }
 };
 
 class NotPackedException : public CantUnpackException
 {
     typedef CantUnpackException super;
 public:
-    NotPackedException(const char *m = 0) : super(m,true) { }
+    NotPackedException(const char *m = 0) NOTHROW : super(m,true) { }
 };
 
 
@@ -195,7 +191,7 @@ class InternalError : public Error
 {
     typedef Error super;
 public:
-    InternalError(const char *m = 0) : super(m,0) { }
+    InternalError(const char *m = 0) NOTHROW : super(m,0) { }
 };
 
 
@@ -212,6 +208,7 @@ public:
 #endif
 
 void throwCantPack(const char *msg) NORET;
+void throwCantPackExact() NORET;
 void throwUnknownExecutableFormat(const char *msg = NULL, bool warn = false) NORET;
 void throwNotCompressible(const char *msg = NULL) NORET;
 void throwAlreadyPacked(const char *msg = NULL) NORET;

src/file.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -40,13 +40,15 @@ void File::chmod(const char *name, int mode)
 #if defined(HAVE_CHMOD)
     if (::chmod(name,mode) != 0)
         throwIOException(name,errno);
+#else
+    UNUSED(name); UNUSED(mode);
 #endif
 }
 
 
 void File::rename(const char *old_, const char *new_)
 {
-#if 1 && defined(__DJGPP__)
+#if defined(__DJGPP__)
     if (::_rename(old_,new_) != 0)
 #else
     if (::rename(old_,new_) != 0)
@@ -67,7 +69,7 @@ void File::unlink(const char *name)
 **************************************************************************/
 
 FileBase::FileBase() :
-    _fd(-1), _flags(0), _shflags(0), _mode(0), _name(NULL)
+    _fd(-1), _flags(0), _shflags(0), _mode(0), _name(NULL), _offset(0), _length(0)
 {
     memset(&st,0,sizeof(st));
 }
@@ -102,6 +104,10 @@ void FileBase::sopen()
         assert(0);
 #endif
     }
+    if (!(_fd < 0)) {
+        ::fstat(_fd, &st);
+        _length = st.st_size;
+    }
 }
 
 
@@ -115,6 +121,8 @@ bool FileBase::close()
     _flags = 0;
     _mode = 0;
     _name = NULL;
+    _offset = 0;
+    _length = 0;
     return ok;
 }
 
@@ -128,29 +136,13 @@ void FileBase::closex()
 
 int FileBase::read(void *buf, int len)
 {
-    int l;
     if (!isOpen() || len < 0)
         throwIOException("bad read");
-    if (len == 0)
+    errno = 0;
-        return 0;
+    long l = acc_safe_hread(_fd, buf, len);
-    for (;;)
+    if (errno)
-    {
+        throwIOException("read error",errno);
-#if 1 && defined(__DJGPP__)
+    return (int) l;
-        l = ::_read(_fd, buf, len);
-#else
-        l = ::read(_fd, buf, len);
-#endif
-        if (l < 0)
-        {
-#if defined(EINTR)
-            if (errno == EINTR)
-                continue;
-#endif
-            throwIOException("read error",errno);
-        }
-        break;
-    }
-    return l;
 }
 
 
@@ -165,26 +157,12 @@ int FileBase::readx(void *buf, int len)
 
 void FileBase::write(const void *buf, int len)
 {
-    int l;
     if (!isOpen() || len < 0)
         throwIOException("bad write");
-    if (len == 0)
+    errno = 0;
-        return;
+    long l = acc_safe_hwrite(_fd, buf, len);
-    for (;;)
+    if (l != len)
-    {
+        throwIOException("write error",errno);
-#if 1 && defined(__DJGPP__)
-        l = ::_write(_fd,buf,len);
-#else
-        l = ::write(_fd,buf,len);
-#endif
-#if defined(EINTR)
-        if (l < 0 && errno == EINTR)
-            continue;
-#endif
-        if (l != len)
-            throwIOException("write error",errno);
-        break;
-    }
 }
 
 
@@ -192,10 +170,17 @@ void FileBase::seek(off_t off, int whence)
 {
     if (!isOpen())
         throwIOException("bad seek 1");
-    if (whence == SEEK_SET && off < 0)
+    if (whence == SEEK_SET) {
-        throwIOException("bad seek 2");
+        if (off < 0)
-    if (whence == SEEK_END && off > 0)
+            throwIOException("bad seek 2");
-        throwIOException("bad seek 3");
+        off += _offset;
+    }
+    if (whence == SEEK_END) {
+        if (off > 0)
+            throwIOException("bad seek 3");
+        off += _offset + _length;
+        whence = SEEK_SET;
+    }
     if (::lseek(_fd,off,whence) < 0)
         throwIOException("seek error",errno);
 }
@@ -208,7 +193,19 @@ off_t FileBase::tell() const
     off_t l = ::lseek(_fd, 0, SEEK_CUR);
     if (l < 0)
         throwIOException("tell error",errno);
-    return l;
+    return l - _offset;
+}
+
+
+void FileBase::set_extent(off_t offset, off_t length)
+{
+    _offset = offset;
+    _length = length;
+}
+
+off_t FileBase::st_size() const
+{
+    return _length;
 }
 
 
@@ -233,6 +230,8 @@ void InputFile::sopen(const char *name, int flags, int shflags)
     _flags = flags;
     _shflags = shflags;
     _mode = 0;
+    _offset = 0;
+    _length = 0;
     FileBase::sopen();
     if (!isOpen())
     {
@@ -259,14 +258,16 @@ int InputFile::readx(void *buf, int len)
 
 int InputFile::read(MemBuffer *buf, int len)
 {
+    buf->checkState();
     assert((unsigned)len <= buf->getSize());
-    return super::read(buf->getVoidPtr(), len);
+    return read(buf->getVoidPtr(), len);
 }
 
 int InputFile::readx(MemBuffer *buf, int len)
 {
+    buf->checkState();
     assert((unsigned)len <= buf->getSize());
-    return super::readx(buf->getVoidPtr(), len);
+    return read(buf->getVoidPtr(), len);
 }
 
 
@@ -315,6 +316,8 @@ void OutputFile::sopen(const char *name, int flags, int shflags, int mode)
     _flags = flags;
     _shflags = shflags;
     _mode = mode;
+    _offset = 0;
+    _length = 0;
     FileBase::sopen();
     if (!isOpen())
     {
@@ -335,29 +338,18 @@ void OutputFile::sopen(const char *name, int flags, int shflags, int mode)
 bool OutputFile::openStdout(int flags, bool force)
 {
     close();
-    if (!force)
+    int fd = STDOUT_FILENO;
-    {
+    if (!force && acc_isatty(fd))
-        if (!isafile(STDOUT_FILENO))
+        return false;
-            return false;
-    }
-    _fd = STDOUT_FILENO;
     _name = "<stdout>";
     _flags = flags;
     _shflags = -1;
     _mode = 0;
-    if (flags != 0)
+    _offset = 0;
-    {
+    _length = 0;
-        assert(flags == O_BINARY);
+    if (flags && acc_set_binmode(fd, 1) == -1)
-#if defined(__MINT__)
+        throwIOException(_name, errno);
-        __set_binmode(stdout, 1);
+    _fd = fd;
-#elif defined(HAVE_SETMODE) && defined(USE_SETMODE)
-        if (setmode(_fd, O_BINARY) == -1)
-            throwIOException(_name,errno);
-#if defined(__DJGPP__)
-        __djgpp_set_ctrl_c(1);
-#endif
-#endif
-    }
     return true;
 }
 
@@ -368,6 +360,60 @@ void OutputFile::write(const void *buf, int len)
     bytes_written += len;
 }
 
+off_t OutputFile::st_size() const
+{
+    if (opt->to_stdout) {  // might be a pipe ==> .st_size is invalid
+        return bytes_written;  // too big if seek()+write() instead of rewrite()
+    }
+    struct stat my_st;
+    ::fstat(_fd, &my_st);
+    return my_st.st_size;
+}
+
+
+void OutputFile::write(const MemBuffer *buf, int len)
+{
+    buf->checkState();
+    assert((unsigned)len <= buf->getSize());
+    write(buf->getVoidPtr(), len);
+}
+
+
+void OutputFile::write(const MemBuffer &buf, int len)
+{
+    write(&buf, len);
+}
+
+void OutputFile::rewrite(const void *buf, int len)
+{
+    assert(!opt->to_stdout);
+    write(buf, len);
+    bytes_written -= len;       // restore
+}
+
+void OutputFile::seek(off_t off, int whence)
+{
+    assert(!opt->to_stdout);
+    super::seek(off,whence);
+}
+
+void OutputFile::set_extent(off_t offset, off_t length)
+{
+    super::set_extent(offset, length);
+    bytes_written = 0;
+    if (0==offset && (off_t)~0u==length) {
+        ::fstat(_fd, &st);
+        _length = st.st_size - offset;
+    }
+}
+
+off_t OutputFile::unset_extent()
+{
+    _offset = 0;
+    _length = ::lseek(_fd, 0, SEEK_END);
+    bytes_written = _length;
+    return _length;
+}
 
 void OutputFile::dump(const char *name, const void *buf, int len, int flags)
 {
@@ -375,7 +421,7 @@ void OutputFile::dump(const char *name, const void *buf, int len, int flags)
          flags = O_CREAT | O_BINARY | O_TRUNC;
     flags |= O_WRONLY;
     OutputFile f;
-    f.open(name, flags, 0666);
+    f.open(name, flags, 0600);
     f.write(buf, len);
     f.closex();
 }

src/file.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -38,6 +38,9 @@ class MemBuffer;
 
 class File
 {
+protected:
+    File() { }
+    virtual ~File() { }
 public:
     static void chmod(const char *name, int mode);
     static void rename(const char *old_, const char *new_);
@@ -56,6 +59,8 @@ public:
     virtual bool isOpen() const { return _fd >= 0; }
     int getFd() const { return _fd; }
     const char *getName() const { return _name; }
+    virtual off_t st_size() const;  // { return _length; }
+    virtual void set_extent(off_t offset, off_t length);
 
 protected:
     void sopen();
@@ -70,6 +75,8 @@ protected:
     int _shflags;
     int _mode;
     const char *_name;
+    off_t _offset;
+    off_t _length;
 public:
     struct stat st;
 };
@@ -123,23 +130,17 @@ public:
     virtual bool openStdout(int flags=0, bool force=false);
 
     virtual void write(const void *buf, int len);
+    virtual void write(const MemBuffer *buf, int len);
+    virtual void write(const MemBuffer &buf, int len);
+    virtual void set_extent(off_t offset, off_t length);
+    virtual off_t unset_extent();  // returns actual length
 
     off_t getBytesWritten() const { return bytes_written; }
+    virtual off_t st_size() const;  // { return _length; }
 
-#if (UPX_VERSION_HEX >= 0x019000)
+    // FIXME - these won't work when using the '--stdout' option
-    // FIXME - these won't work when using the `--stdout' option
+    virtual void seek(off_t off, int whence);
-    virtual void seek(off_t off, int whence)
+    virtual void rewrite(const void *buf, int len);
-    {
-        assert(!opt->to_stdout);
-        super::seek(off,whence);
-    }
-    virtual void rewrite(const void *buf, int len)
-    {
-        assert(!opt->to_stdout);
-        write(buf, len);
-        bytes_written -= len;       // restore
-    }
-#endif
 
     // util
     static void dump(const char *name, const void *buf, int len, int flags=-1);
@@ -153,7 +154,7 @@ protected:
 //
 **************************************************************************/
 
-#if 0
+#if 0 /* NOT USED */
 class MemoryOutputFile : public FileBase
 {
     typedef FileBase super;

src/filter.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -21,8 +21,8 @@
    If not, write to the Free Software Foundation, Inc.,
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-   Markus F.X.J. Oberhumer   Laszlo Molnar
+   Markus F.X.J. Oberhumer              Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
  */
 
 
@@ -61,10 +61,10 @@ const FilterImp::FilterEntry *FilterImp::getFilter(int id)
         memset(filter_map, 0xff, sizeof(filter_map));
         for (int i = 0; i < n_filters; i++)
         {
-            int fid = filters[i].id;
+            int filter_id = filters[i].id;
-            assert(fid >= 0 && fid <= 255);
+            assert(filter_id >= 0 && filter_id <= 255);
-            assert(filter_map[fid] == 0xff);
+            assert(filter_map[filter_id] == 0xff);
-            filter_map[fid] = (unsigned char) i;
+            filter_map[filter_id] = (unsigned char) i;
         }
         done = true;
     }
@@ -85,6 +85,20 @@ bool Filter::isValidFilter(int filter_id)
     return fe != NULL;
 }
 
+bool Filter::isValidFilter(int filter_id, const int *allowed_filters)
+{
+    if (!isValidFilter(filter_id))
+        return false;
+    if (filter_id == 0)
+        return true;
+    if (allowed_filters == NULL)
+        return false;
+    while (*allowed_filters != FT_END)
+        if (*allowed_filters++ == filter_id)
+            return true;
+    return false;
+}
+
 
 /*************************************************************************
 // high level API

src/filter.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -62,6 +62,7 @@ public:
     bool scan(const upx_byte *buf, unsigned buf_len);
 
     static bool isValidFilter(int filter_id);
+    static bool isValidFilter(int filter_id, const int *allowed_filters);
 
 public:
     // Will be set by each call to filter()/unfilter().

src/filter/ct.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -383,6 +383,81 @@ static int s_ct32_e8e9_bswap_be(Filter *f)
 
 #undef CT32
 
+/*************************************************************************
+// 24-bit ARM calltrick ("naive")
+**************************************************************************/
+
+#define CT24ARM_LE(f, cond, addvalue, get, set) \
+    upx_byte *b = f->buf; \
+    upx_byte *b_end = b + f->buf_len - 4; \
+    do { \
+        if (cond) \
+        { \
+            unsigned a = (unsigned) (b - f->buf); \
+            f->lastcall = a; \
+            set(b, get(b) + (addvalue)); \
+            f->calls++; \
+        } \
+        b += 4; \
+    } while (b < b_end); \
+    if (f->lastcall) f->lastcall += 4; \
+    return 0;
+
+
+#define ARMCT_COND_le (((b[3] & 0x0f) == 0x0b))
+
+static int f_ct24arm_le(Filter *f)
+{
+    CT24ARM_LE(f, ARMCT_COND_le, a / 4 + f->addvalue, get_le24, set_le24)
+}
+
+static int u_ct24arm_le(Filter *f)
+{
+    CT24ARM_LE(f, ARMCT_COND_le, 0 - a / 4 - f->addvalue, get_le24, set_le24)
+}
+
+static int s_ct24arm_le(Filter *f)
+{
+    CT24ARM_LE(f, ARMCT_COND_le, a + f->addvalue, get_le24, set_dummy)
+}
+
+#undef CT24ARM_LE
+
+#define CT24ARM_BE(f, cond, addvalue, get, set) \
+    upx_byte *b = f->buf; \
+    upx_byte *b_end = b + f->buf_len - 4; \
+    do { \
+        if (cond) \
+        { \
+            unsigned a = (unsigned) (b - f->buf); \
+            f->lastcall = a; \
+            set(1+b, get(1+b) + (addvalue)); \
+            f->calls++; \
+        } \
+        b += 4; \
+    } while (b < b_end); \
+    if (f->lastcall) f->lastcall += 4; \
+    return 0;
+
+#define ARMCT_COND_be (((b[0] & 0x0f) == 0x0b))
+
+static int f_ct24arm_be(Filter *f)
+{
+    CT24ARM_BE(f, ARMCT_COND_be, a / 4 + f->addvalue, get_be24, set_be24)
+}
+
+static int u_ct24arm_be(Filter *f)
+{
+    CT24ARM_BE(f, ARMCT_COND_be, 0 - a / 4 - f->addvalue, get_be24, set_be24)
+}
+
+static int s_ct24arm_be(Filter *f)
+{
+    CT24ARM_BE(f, ARMCT_COND_be, a + f->addvalue, get_be24, set_dummy)
+}
+
+#undef CT24ARM_BE
+#undef ARMCT_COND
 
 /*
 vi:ts=4:et:nowrap

src/filter/cto.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -36,11 +36,11 @@ static int F(Filter *f)
 #ifdef U
     // filter
     upx_byte *b = f->buf;
-    const unsigned addvalue = f->addvalue;
 #else
     // scan
     const upx_byte *b = f->buf;
 #endif
+    const unsigned addvalue = f->addvalue;
     const unsigned size = f->buf_len;
 
     unsigned ic, jc, kc;
@@ -52,11 +52,24 @@ static int F(Filter *f)
         unsigned char buf[256];
         memset(buf,0,256);
 
+        // A call to a destination that is inside the buffer
+        // will be rewritten and marked with cto8 as first byte.
+        // So, a call to a destination that is outside the buffer
+        // must not conflict with the mark.
+        // Note that unsigned comparison checks both edges of buffer.
         for (ic = 0; ic < size - 5; ic++)
-            if (COND(b,ic) && get_le32(b+ic+1)+ic+1 >= size)
+        {
+            if (!COND(b,ic))
+                continue;
+            jc = get_le32(b+ic+1)+ic+1;
+            if (jc < size)
             {
-                buf[b[ic+1]] |= 1;
+                if (jc + addvalue >= (1u << 24)) // hi 8 bits won't be cto8
+                    return -1;
             }
+            else
+                buf[b[ic+1]] |= 1;
+        }
 
         if (getcto(f, buf) < 0)
             return -1;
@@ -74,6 +87,7 @@ static int F(Filter *f)
         // try to detect 'real' calls only
         if (jc < size)
         {
+            assert(jc + addvalue < (1u << 24)); // hi 8 bits won't be cto8
 #ifdef U
             set_be32(b+ic+1,jc+addvalue+cto);
 #endif

src/filter/ctoj.h

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
+   Copyright (C) 2000-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -40,11 +40,11 @@ static int F(Filter *f)
 #ifdef U
     // filter
     upx_byte *b = f->buf;
-    const unsigned addvalue = f->addvalue;
 #else
     // scan
     const upx_byte *b = f->buf;
 #endif
+    const unsigned addvalue = f->addvalue;
     const unsigned size = f->buf_len;
 
     unsigned ic, jc, kc;
@@ -57,10 +57,18 @@ static int F(Filter *f)
         memset(buf,0,256);
 
         for (ic = 0; ic < size - 5; ic++)
-            if (COND(b,ic,lastcall) && get_le32(b+ic+1)+ic+1 >= size)
+        {
+            if (!COND(b,ic,lastcall))
+                continue;
+            jc = get_le32(b+ic+1)+ic+1;
+            if (jc < size)
             {
-                buf[b[ic+1]] |= 1;
+                if (jc + addvalue >= (1u << 24)) // hi 8 bits won't be cto8
+                    return -1;
             }
+            else
+                buf[b[ic+1]] |= 1;
+        }
 
         if (getcto(f, buf) < 0)
             return -1;
@@ -78,6 +86,7 @@ static int F(Filter *f)
         // try to detect 'real' calls only
         if (jc < size)
         {
+            assert(jc + addvalue < (1u << 24)); // hi 8 bits won't be cto8
 #ifdef U
             set_be32(b+ic+1,jc+addvalue+cto);
 #endif
@@ -134,8 +143,7 @@ static int U(Filter *f)
     const unsigned size5 = f->buf_len - 5;
     const unsigned addvalue = f->addvalue;
     const unsigned cto = (unsigned)f->cto << 24;
-    unsigned lastcall = 0;
+//    unsigned lastcall = 0;    // lastcall is not used in COND macro
-
     unsigned ic, jc;
 
     for (ic = 0; ic < size5; ic++)
@@ -147,7 +155,7 @@ static int U(Filter *f)
                 set_le32(b+ic+1,jc-ic-1-addvalue-cto);
                 f->calls++;
                 ic += 4;
-                f->lastcall = lastcall = ic+1;
+                f->lastcall = ic+1;
             }
             else
                 f->noncalls++;

src/filter/ctojr.h

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
+   Copyright (C) 2000-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -30,6 +30,10 @@
  */
 
 
+#if (ACC_CC_MSC && (_MSC_VER >= 1000 && _MSC_VER < 1300))
+#  pragma warning(disable: 4702)        // W4: unreachable code
+#endif
+
 
 /*************************************************************************
 // filter / scan
@@ -131,6 +135,7 @@ static int F(Filter *f)
             {
                 buf[b[ic+1]] |= 1;
             }
+        UNUSED(which);
 
         if (getcto(f, buf) < 0)
             return -1;

src/filter/ctok.h

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
+   Copyright (C) 2000-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -40,11 +40,11 @@ static int F(Filter *f)
 #ifdef U
     // filter
     upx_byte *b = f->buf;
-    const unsigned addvalue = f->addvalue;
 #else
     // scan
     const upx_byte *b = f->buf;
 #endif
+    const unsigned addvalue = f->addvalue;
     const unsigned size = f->buf_len;
     unsigned const id = f->id;
 
@@ -58,10 +58,18 @@ static int F(Filter *f)
         memset(buf,0,256);
 
         for (ic = 0; ic < size - 5; ic++)
-            if (COND(b,ic,lastcall,id) && get_le32(b+ic+1)+ic+1 >= size)
+        {
+            if (!COND(b,ic,lastcall,id))
+                continue;
+            jc = get_le32(b+ic+1)+ic+1;
+            if (jc < size)
             {
-                buf[b[ic+1]] |= 1;
+                if (jc + addvalue >= (1u << 24)) // hi 8 bits won't be cto8
+                    return -1;
             }
+            else
+                buf[b[ic+1]] |= 1;
+        }
 
         if (getcto(f, buf) < 0)
             return -1;
@@ -79,6 +87,7 @@ static int F(Filter *f)
         // try to detect 'real' calls only
         if (jc < size)
         {
+            assert(jc + addvalue < (1u << 24)); // hi 8 bits won't be cto8
 #ifdef U
             set_be32(b+ic+1,jc+addvalue+cto);
 #endif

src/filter/ctsw.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filter/getcto.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filter/ppcbxx.h

@@ -0,0 +1,155 @@
+/* ppcbxx.h -- PowerPC Branch trick
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   Copyright (C) 2004-2007 John F. Reiser
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
+ */
+
+
+
+/*************************************************************************
+// filter / scan
+**************************************************************************/
+
+#define W_CTO 4  /* width of cto; must match stub/ppc_bxx.S */
+
+static int F(Filter *f)
+{
+#ifdef U
+    // filter
+    upx_byte *b = f->buf;
+    const unsigned addvalue = f->addvalue;
+#else
+    // scan
+    const upx_byte *b = f->buf;
+#endif
+    const unsigned size  = umin(f->buf_len, -(~0u<<(32 - (6+ W_CTO))));
+    const unsigned size4 = size -4;
+
+    unsigned ic;
+    unsigned calls = 0, noncalls = 0;
+    unsigned lastnoncall = size, lastcall = 0;
+
+    // find 26-2-W_CTO bits of displacements that contain no targets
+    {
+        unsigned char buf[256];
+        unsigned short wbuf[256];
+        const size_t WW = (size_t)0 - ((~(size_t)0) << W_CTO); // ???
+        memset(wbuf, 0, sizeof(wbuf));
+        memset(buf     , 0,       WW);
+        memset(buf + WW, 1, 256 - WW);
+
+        for (ic = 0; ic<=size4; ic+=4) if (COND(b,ic)) {
+            unsigned const off = (int)(get_be32(b+ic)<<6) >>6;
+            if (size <= (off & (~0u<<2))+ic) {
+                buf[(~(~0u<<W_CTO)) & (off>>(26 - W_CTO))] |= 1;
+                ++wbuf[0xff&(off>>18)];
+            }
+        }
+
+        if (getcto(f, buf) < 0) {
+            if (0!=W_CTO)  // FIXME: what is this ???
+                return -1;
+            f->cto = 0;
+        }
+    }
+    const unsigned char cto8 = f->cto;
+#ifdef U
+    const unsigned cto = (unsigned)f->cto << (24+2 - W_CTO);
+#endif
+
+    for (ic = 0; ic<=size4; ic+=4) if (COND(b,ic)) {
+        unsigned const word = get_be32(b+ic);
+        unsigned const off = (int)(word<<6) >>6;
+        unsigned const jc = (off & (~0u<<2))+ic;
+        // try to detect 'real' calls only
+        if (jc < size) {
+#ifdef U
+            set_be32(b+ic,(0xfc000003&word) | (jc+addvalue+cto));
+#endif
+            calls++;
+            lastcall = ic;
+        }
+        else {
+            assert(0==W_CTO  // FIXME: what is this ???
+            || (~(~0u<<W_CTO) & (word>>(24+2 - W_CTO))) != cto8);  // this should not happen
+            lastnoncall = ic;
+            noncalls++;
+        }
+    }
+
+    f->calls = calls;
+    f->noncalls = noncalls;
+    f->lastcall = lastcall;
+
+#if 0
+    printf("\ncalls=%d noncalls=%d text_size=%x calltrickoffset=%x\n",
+        calls,noncalls,size,cto8);
+#endif
+    return 0;
+}
+
+
+/*************************************************************************
+// unfilter
+**************************************************************************/
+
+#ifdef U
+static int U(Filter *f)
+{
+    upx_byte *b = f->buf;
+    const unsigned size4 = umin(f->buf_len - 4, -(~0u<<(32 - (6+ W_CTO))));
+    const unsigned addvalue = f->addvalue;
+
+    unsigned ic;
+
+   for (ic = 0; ic<=size4; ic+=4) if (COND(b,ic)) {
+        unsigned const word = get_be32(b+ic);
+        if ((~(~0u<<W_CTO) & (word>>(24+2 - W_CTO))) == f->cto) {
+            unsigned const jc = word & (~(~0u<<(26 - W_CTO)) & (~0u<<2));
+            set_be32(b+ic, (0xfc000003&word)|(0x03fffffc&(jc-ic-addvalue)));
+            f->calls++;
+            f->lastcall = ic;
+        }
+        else {
+            f->noncalls++;
+        }
+    }
+    return 0;
+}
+#endif
+
+
+#undef F
+#undef U
+
+#undef W_CTO
+
+/*
+vi:ts=4:et:nowrap
+*/
+

src/filter/sub.hh

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filter/sub16.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filter/sub32.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filter/sub8.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filter/sw.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/filteri.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,13 +22,19 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
 #include "conf.h"
 #include "filter.h"
 
+static unsigned
+umin(unsigned const a, unsigned const b)
+{
+    return (a<=b) ? a : b;
+}
+
 
 #define set_dummy(p, v)     ((void)0)
 #define get_8(p)            (*(p))
@@ -103,7 +109,7 @@
 
 #define COND1(b,x)     (b[x] == 0xe8 || b[x] == 0xe9)
 #define COND2(b,x,lc)  (lc!=(x) && 0xf==b[(x)-1] && 0x80<=b[x] && b[x]<=0x8f)
-#define  COND(b,x,lc,id) (COND1(b,x) || ((9<=(0xf&(id))) && COND2(b,x,lc)))
+#define COND(b,x,lc,id) (COND1(b,x) || ((9<=(0xf&(id))) && COND2(b,x,lc)))
 #define F                       f_ctok32_e8e9_bswap_le
 #define U                       u_ctok32_e8e9_bswap_le
 #include "filter/ctok.h"
@@ -145,6 +151,19 @@
 #undef COND_CALL
 
 
+/*************************************************************************
+// PowerPC branch [incl. call] trick
+**************************************************************************/
+
+#define COND(b,x) (18==(get_be32(b+x)>>26))
+#define F                       f_ppcbxx
+#define U                       u_ppcbxx
+#include "filter/ppcbxx.h"
+#define F                       s_ppcbxx
+#include "filter/ppcbxx.h"
+#undef COND
+
+
 /*************************************************************************
 // database for use in class Filter
 **************************************************************************/
@@ -205,6 +224,10 @@ const FilterImp::FilterEntry FilterImp::filters[] = {
     { 0x46, 6, 0x00ffffff, f_ctok32_e8e9_bswap_le, u_ctok32_e8e9_bswap_le, s_ctok32_e8e9_bswap_le },
     { 0x49, 6, 0x00ffffff, f_ctok32_e8e9_bswap_le, u_ctok32_e8e9_bswap_le, s_ctok32_e8e9_bswap_le },
 
+    // 24-bit calltrick for arm
+    { 0x50, 8, 0x01ffffff, f_ct24arm_le, u_ct24arm_le, s_ct24arm_le },
+    { 0x51, 8, 0x01ffffff, f_ct24arm_be, u_ct24arm_be, s_ct24arm_be },
+
     // 32-bit cto calltrick with jmp and jcc(swap 0x0f/0x8Y) and relative renumbering
     { 0x80, 8, 0x00ffffff, f_ctojr32_e8e9_bswap_le, u_ctojr32_e8e9_bswap_le, s_ctojr32_e8e9_bswap_le },
     { 0x81, 8, 0x00ffffff, f_ctojr32_e8e9_bswap_le, u_ctojr32_e8e9_bswap_le, s_ctojr32_e8e9_bswap_le },
@@ -230,9 +253,12 @@ const FilterImp::FilterEntry FilterImp::filters[] = {
     { 0xb1,99,          0, f_sub32_2, u_sub32_2, s_sub32_2 },
     { 0xb2,99,          0, f_sub32_3, u_sub32_3, s_sub32_3 },
     { 0xb3,99,          0, f_sub32_4, u_sub32_4, s_sub32_4 },
+
+    // PowerPC branch+call trick
+    { 0xd0, 8,          0, f_ppcbxx, u_ppcbxx, s_ppcbxx },
 };
 
-const int FilterImp::n_filters = HIGH(filters);
+const int FilterImp::n_filters = TABLESIZE(filters);
 
 
 /*

src/help.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -27,6 +27,9 @@
 
 
 #include "conf.h"
+#include "compress.h"
+#include "packmast.h"
+#include "packer.h"
 
 
 /*************************************************************************
@@ -47,12 +50,12 @@ void show_head(void)
 #define V(x)    (strcmp(UPX_VERSION_STRING, UPX_VERSION_STRING4) ? UPX_VERSION_STRING : UPX_VERSION_STRING x)
     fg = con_fg(f,FG_GREEN);
     con_fprintf(f,
-                "                     Ultimate Packer for eXecutables\n"
+                "                       Ultimate Packer for eXecutables\n"
-                "         Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002\n"
+                "  Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007\n"
-                "UPX %-12s Markus F.X.J. Oberhumer & Laszlo Molnar %20s\n\n",
+                "UPX %-10s  Markus Oberhumer, Laszlo Molnar & John Reiser  %14s\n\n",
-#if defined(__MFX_DOS)
+#if (ACC_OS_DOS16 || ACC_OS_DOS32)
                 V("d"),
-#elif defined(__MFX_WIN32)
+#elif (ACC_OS_WIN16 || ACC_OS_WIN32 || ACC_OS_WIN64)
                 V("w"),
 #elif 0 && defined(__linux__)
                 V("l"),
@@ -62,6 +65,8 @@ void show_head(void)
                 UPX_VERSION_DATE);
     fg = con_fg(f,fg);
 #undef V
+
+    UNUSED(fg);
 }
 
 
@@ -86,7 +91,77 @@ void show_usage(void)
 //
 **************************************************************************/
 
-void show_help(int x)
+struct PackerNames
+{
+    struct Entry {
+        const char* fname;
+        const char* sname;
+    };
+    Entry names[32];
+    size_t names_count;
+    const options_t *o;
+    PackerNames() : names_count(0), o(NULL) { }
+    void add(const Packer *p)
+    {
+        p->assertPacker();
+        assert(names_count < 32);
+        names[names_count].fname = p->getFullName(o);
+        names[names_count].sname = p->getName();
+        names_count++;
+    }
+    static Packer* visit(Packer *p, void *user)
+    {
+        PackerNames *self = (PackerNames *) user;
+        self->add(p);
+        return NULL;
+    }
+    static int __acc_cdecl_qsort cmp_fname(const void *a, const void *b) {
+        return strcmp(((const Entry *) a)->fname, ((const Entry *) b)->fname);
+    }
+    static int __acc_cdecl_qsort cmp_sname(const void *a, const void *b) {
+        return strcmp(((const Entry *) a)->sname, ((const Entry *) b)->sname);
+    }
+};
+
+static void show_all_packers(FILE *f, int verbose)
+{
+    options_t o; o.reset();
+    PackerNames pn; pn.o = &o;
+    PackMaster::visitAllPackers(pn.visit, NULL, &o, &pn);
+    qsort(pn.names, pn.names_count, sizeof(PackerNames::Entry), pn.cmp_fname);
+    size_t pos = 0;
+    for (size_t i = 0; i < pn.names_count; ++i)
+    {
+        const char *fn = pn.names[i].fname;
+        const char *sn = pn.names[i].sname;
+        if (verbose)
+        {
+            con_fprintf(f, "    %-32s %s\n", fn, sn);
+        }
+        else
+        {
+            if (pos == 0) {
+                con_fprintf(f, "  %s", fn);
+                pos = 2 + strlen(fn);
+            } else if (pos + 1 + strlen(fn) > 80) {
+                con_fprintf(f, "\n  %s", fn);
+                pos = 2 + strlen(fn);
+            } else {
+                con_fprintf(f, " %s", fn);
+                pos += 1 + strlen(fn);
+            }
+        }
+    }
+    if (!verbose && pn.names_count)
+        con_fprintf(f, "\n");
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+void show_help(int verbose)
 {
     FILE *f = con_term;
     int fg;
@@ -103,8 +178,8 @@ void show_help(int x)
                 "  -d     decompress                        -l    list compressed file\n"
                 "  -t     test compressed file              -V    display version number\n"
                 "  -h     give %s help                    -L    display software license\n%s",
-                x == 0 ? "" : "  --best compress best (can be very slow for big files)\n",
+                verbose == 0 ? "" : "  --best compress best (can be slow for big files)\n",
-                x == 0 ? "more" : "this", x == 0 ? "" : "\n");
+                verbose == 0 ? "more" : "this", verbose == 0 ? "" : "\n");
 
     fg = con_fg(f,FG_YELLOW);
     con_fprintf(f,"Options:\n");
@@ -112,22 +187,29 @@ void show_help(int x)
 
     con_fprintf(f,
                 "  -q     be quiet                          -v    be verbose\n"
-                "  -oFILE write output to `FILE'\n"
+                "  -oFILE write output to 'FILE'\n"
                 //"  -f     force overwrite of output files and compression of suspicious files\n"
                 "  -f     force compression of suspicious files\n"
                 "%s%s"
-                , (x == 0) ? "  -k     keep backup files\n" : ""
+                , (verbose == 0) ? "  -k     keep backup files\n" : ""
 #if 1
-                , (x > 0) ? "  --no-color, --mono, --color, --no-progress   change look\n" : ""
+                , (verbose > 0) ? "  --no-color, --mono, --color, --no-progress   change look\n" : ""
 #else
                 , ""
 #endif
                 );
 
-    if (x > 0)
+    if (verbose > 0)
     {
         fg = con_fg(f,FG_YELLOW);
-        con_fprintf(f,"\nBackup options:\n");
+        con_fprintf(f,"\nCompression tuning options:\n");
+        fg = con_fg(f,fg);
+        con_fprintf(f,
+                    "  --brute             try all available compression methods & filters\n"
+                    "  --ultra-brute       try even more compression variants\n"
+                    "\n");
+        fg = con_fg(f,FG_YELLOW);
+        con_fprintf(f,"Backup options:\n");
         fg = con_fg(f,fg);
         con_fprintf(f,
                     "  -k, --backup        keep backup files\n"
@@ -138,17 +220,15 @@ void show_help(int x)
         fg = con_fg(f,fg);
         con_fprintf(f,
                     "  --overlay=copy      copy any extra data attached to the file [default]\n"
-                    "  --overlay=strip     strip any extra data attached to the file [dangerous]\n"
+                    "  --overlay=strip     strip any extra data attached to the file [DANGEROUS]\n"
                     "  --overlay=skip      don't compress a file with an overlay\n"
                     "\n");
-#if 1
         fg = con_fg(f,FG_YELLOW);
         con_fprintf(f,"Options for atari/tos:\n");
         fg = con_fg(f,fg);
         con_fprintf(f,
                     "  --all-methods       try all available compression methods\n"
                     "\n");
-#endif
         fg = con_fg(f,FG_YELLOW);
         con_fprintf(f,"Options for djgpp2/coff:\n");
         fg = con_fg(f,fg);
@@ -190,16 +270,16 @@ void show_help(int x)
                     "  --script=/path/upxX  use path/upxX as decompressor\n"
                     "\n");
 #endif
-#if 1
         fg = con_fg(f,FG_YELLOW);
         con_fprintf(f,"Options for ps1/exe:\n");
         fg = con_fg(f,fg);
         con_fprintf(f,
                     "  --all-methods       try all available compression methods\n"
-                    "  --no-align          don't align to mode2 sector format\n"
+                    "  --8-bit             uses 8 bit size compression [default: 32 bit]\n"
+                    "  --8mb-ram           8 megabyte memory limit [default: 2 mb]\n"
+                    "  --boot-only         disables client/host transfer compatibility\n"
+                    "  --no-align          don't align to 2048 bytes [enables: --console-run]\n"
                     "\n");
-#endif
-#if 1
         fg = con_fg(f,FG_YELLOW);
         con_fprintf(f,"Options for tmt/adam:\n");
         fg = con_fg(f,fg);
@@ -207,16 +287,13 @@ void show_help(int x)
                     "  --all-methods       try all available compression methods\n"
                     "  --all-filters       try all available preprocessing filters\n"
                     "\n");
-#endif
-#if 1
         fg = con_fg(f,FG_YELLOW);
-        con_fprintf(f,"Options for [b]vmlinuz/386\n");
+        con_fprintf(f,"Options for vmlinuz/386\n");
         fg = con_fg(f,fg);
         con_fprintf(f,
                     "  --all-methods       try all available compression methods\n"
                     "  --all-filters       try all available preprocessing filters\n"
                     "\n");
-#endif
         fg = con_fg(f,FG_YELLOW);
         con_fprintf(f,"Options for watcom/le:\n");
         fg = con_fg(f,fg);
@@ -224,7 +301,7 @@ void show_help(int x)
                     "  --le                produce LE output [default: EXE]\n"
                     "\n");
         fg = con_fg(f,FG_YELLOW);
-        con_fprintf(f,"Options for win32/pe & rtm32/pe:\n");
+        con_fprintf(f,"Options for win32/pe, rtm32/pe & arm/pe:\n");
         fg = con_fg(f,fg);
         con_fprintf(f,
                     "  --compress-exports=0    do not compress the export section\n"
@@ -232,7 +309,9 @@ void show_help(int x)
                     "  --compress-icons=0      do not compress any icons\n"
                     "  --compress-icons=1      compress all but the first icon\n"
                     "  --compress-icons=2      compress all but the first icon directory [default]\n"
+                    "  --compress-icons=3      compress all icons\n"
                     "  --compress-resources=0  do not compress any resources at all\n"
+                    "  --keep-resource=list    do not compress resources specified by list\n"
                     "  --strip-relocs=0        do not strip relocations\n"
                     "  --strip-relocs=1        strip relocations [default]\n"
                     "  --all-methods           try all available compression methods\n"
@@ -240,34 +319,23 @@ void show_help(int x)
                     "\n");
     }
 
-    con_fprintf(f,
+    con_fprintf(f, "file..   executables to (de)compress\n");
-                "file..   executables to (de)compress\n"
-                "\n");
-    fg = con_fg(f,FG_YELLOW);
-    con_fprintf(f,"This version supports:\n");
-    fg = con_fg(f,fg);
-    con_fprintf(f,"    "
-                "atari/tos, "
-                "bvmlinuz/386, "
-                "djgpp2/coff, "
-                "dos/com, "
-                "dos/exe, "
-                "dos/sys,\n    "
-                //"elks/8086, "
-                "linux/386, "
-                "linux/elf386, "
-                "linux/sh386, "
-                "ps1/exe, "
-                "rtm32/pe, "
-                "tmt/adam,\n    "
-                "vmlinuz/386, "
-                "watcom/le, "
-                //"win16/ne, "
-                "win32/pe"
-                "\n\nUPX comes with ABSOLUTELY NO WARRANTY; for details visit http://upx.sf.net\n"
-                //"\n\nUPX comes with ABSOLUTELY NO WARRANTY; for details type `upx -L'.\n"
-                "");
 
+    if (verbose > 0)
+    {
+        fg = con_fg(f,FG_YELLOW);
+        con_fprintf(f,"\nThis version supports:\n");
+        fg = con_fg(f,fg);
+        show_all_packers(f, verbose);
+    }
+    else
+    {
+        con_fprintf(f,"\nType '%s --help' for more detailed help.\n", progname);
+    }
+
+    con_fprintf(f,"\nUPX comes with ABSOLUTELY NO WARRANTY; for details visit http://upx.sf.net\n"
+//                "\nUPX comes with ABSOLUTELY NO WARRANTY; for details type 'upx -L'.\n"
+                "");
 
 #if defined(DEBUG) || defined(TESTING)
     fg = con_fg(f,FG_RED);
@@ -281,6 +349,8 @@ void show_help(int x)
                 "\n");
     fg = con_fg(f,fg);
 #endif
+
+    UNUSED(fg);
 }
 
 
@@ -320,6 +390,8 @@ void show_license(void)
         "   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>\n"
     );
     fg = con_fg(f,fg);
+
+    UNUSED(fg);
 }
 
 
@@ -329,25 +401,43 @@ void show_license(void)
 
 void show_version(int x)
 {
-    FILE *f = stdout;
+    FILE *fp = stdout;
+    const char *v;
     UNUSED(x);
+    UNUSED(v);
 
-#if 0 && defined(__GNUC__)
+    fprintf(fp, "upx %s\n", UPX_VERSION_STRING);
-    fprintf(f,"upx %s (gcc 0x%lx)\n", UPX_VERSION_STRING, __GNUC_VERSION_HEX__);
-#else
-    fprintf(f,"upx %s\n", UPX_VERSION_STRING);
-#endif
 #if defined(WITH_NRV)
-    fprintf(f,"NRV data compression library %s\n", nrv_version_string());
+    v = upx_nrv_version_string();
+    if (v != NULL && v[0])
+        fprintf(fp, "NRV data compression library %s\n", v);
 #endif
 #if defined(WITH_UCL)
-    fprintf(f,"UCL data compression library %s\n", ucl_version_string());
+    v = upx_ucl_version_string();
+    if (v != NULL && v[0])
+        fprintf(fp, "UCL data compression library %s\n", v);
 #endif
-    fprintf(f,"Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer\n");
+#if defined(WITH_ZLIB)
-    fprintf(f,"Copyright (C) 1996-2002 Laszlo Molnar\n");
+    v = upx_zlib_version_string();
-    fprintf(f,"Copyright (C) 2000-2002 John F. Reiser\n");
+    if (v != NULL && v[0])
-    fprintf(f,"Copyright (C) 2002      Jens Medoch\n");
+        fprintf(fp, "zlib data compression library %s\n", v);
-    fprintf(f,"UPX comes with ABSOLUTELY NO WARRANTY; for details type `%s -L'.\n", progname);
+#endif
+#if defined(WITH_LZMA)
+    v = upx_lzma_version_string();
+    if (v != NULL && v[0])
+        fprintf(fp, "LZMA SDK version %s\n", v);
+#endif
+    fprintf(fp, "Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer\n");
+    fprintf(fp, "Copyright (C) 1996-2007 Laszlo Molnar\n");
+    fprintf(fp, "Copyright (C) 2000-2007 John F. Reiser\n");
+    fprintf(fp, "Copyright (C) 2002-2007 Jens Medoch\n");
+#if defined(WITH_ZLIB)
+    fprintf(fp, "Copyright (C) 1995" "-2005 Jean-loup Gailly and Mark Adler\n");
+#endif
+#if defined(WITH_LZMA)
+    fprintf(fp, "Copyright (C) 1999" "-2006 Igor Pavlov\n");
+#endif
+    fprintf(fp, "UPX comes with ABSOLUTELY NO WARRANTY; for details type '%s -L'.\n", progname);
 }
 
 

src/lefile.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them

src/lefile.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -219,8 +219,8 @@ protected:
 
 private:
     // disable copy and assignment
-    LeFile(LeFile const &); // {}
+    LeFile(const LeFile &); // {}
-    LeFile& operator= (LeFile const &); // { return *this; }
+    LeFile& operator= (const LeFile &); // { return *this; }
 };
 
 

src/linker.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -30,64 +30,202 @@
 #define __UPX_LINKER_H
 
 
-class Linker
+/*************************************************************************
+// ElfLinker
+**************************************************************************/
+
+class ElfLinker : private nocopy
 {
+    friend class Packer;
 public:
-    Linker(const void *pdata, int plen, int pinfo);
+    const N_BELE_RTP::AbstractPolicy *bele;
-    virtual ~Linker();
+protected:
-    int addSection(const char *sect);
+    struct      Section;
-    void addSection(const char *sname, const void *sdata, unsigned len);
+    struct      Symbol;
-    const char *getLoader(int *llen);
+    struct      Relocation;
-    int getSection(const char *name, int *slen) const;
+
-    int getLoaderSize() const { return olen; }
+    upx_byte    *input;
-    void setLoaderAlignOffset(int phase);
+    int         inputlen;
+    upx_byte    *output;
+    int         outputlen;
+
+    Section     *head;
+    Section     *tail;
+
+    Section     **sections;
+    Symbol      **symbols;
+    Relocation  **relocations;
+
+    unsigned    nsections;
+    unsigned    nsections_capacity;
+    unsigned    nsymbols;
+    unsigned    nsymbols_capacity;
+    unsigned    nrelocations;
+    unsigned    nrelocations_capacity;
+
+    bool        reloc_done;
 
 protected:
-    // little endian
+    void preprocessSections(char *start, char *end);
-    virtual unsigned get32(const void *b) const { return get_le32(b); }
+    void preprocessSymbols(char *start, char *end);
-    virtual void set32(void *b, unsigned v) const { set_le32(b, v); }
+    void preprocessRelocations(char *start, char *end);
+    Section *findSection(const char *name, bool fatal=true) const;
+    Symbol *findSymbol(const char *name, bool fatal=true) const;
 
-private:
+    Symbol *addSymbol(const char *name, const char *section, unsigned offset);
-    struct section;
+    Relocation *addRelocation(const char *section, unsigned off, const char *type,
-    struct jump;
+                              const char *symbol, unsigned add);
 
-    char     *iloader, *oloader;
+public:
-    int      ilen, olen;
+    ElfLinker();
-    int      info;
+    virtual ~ElfLinker();
-    jump     *jumps;
-    int      njumps;
-    section  *sections;
-    int      nsections;
-    int      frozen;
-    int      align_hack;
-    int     align_offset;
 
-private:
+    virtual void init(const void *pdata, int plen);
-    // disable copy and assignment
+    //virtual void setLoaderAlignOffset(int phase);
-    Linker(Linker const &); // {}
+    virtual int addLoader(const char *sname);
-    Linker& operator= (Linker const &); // { return *this; }
+    void addLoader(const char *s, va_list ap);
+#if 1 && (ACC_CC_GNUC >= 0x040100)
+    void __acc_cdecl_va addLoaderVA(const char *s, ...) __attribute__((__sentinel__));
+#else
+    void __acc_cdecl_va addLoaderVA(const char *s, ...);
+#endif
+    virtual Section *addSection(const char *sname, const void *sdata, int slen, unsigned p2align);
+    virtual int getSection(const char *sname, int *slen=NULL) const;
+    virtual int getSectionSize(const char *sname) const;
+    virtual upx_byte *getLoader(int *llen=NULL) const;
+    virtual void defineSymbol(const char *name, unsigned value);
+    virtual unsigned getSymbolOffset(const char *) const;
+
+    virtual void dumpSymbol(const Symbol *, unsigned flags, FILE *fp) const;
+    virtual void dumpSymbols(unsigned flags=0, FILE *fp=NULL) const;
+
+    void alignWithByte(unsigned len, unsigned char b);
+    virtual void alignCode(unsigned len) { alignWithByte(len, 0); }
+    virtual void alignData(unsigned len) { alignWithByte(len, 0); }
+
+protected:
+    virtual void relocate();
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
 };
 
 
-class BeLinker : public Linker
+struct ElfLinker::Section : private nocopy
 {
-    typedef Linker super;
+    char *name;
-public:
+    void *input;
-    BeLinker(const void *pdata, int plen, int pinfo) :
+    upx_byte *output;
-        super(pdata, plen, pinfo) { }
+    unsigned size;
+    unsigned offset;
+    unsigned p2align;   // log2
+    Section *next;
 
-protected:
+    Section(const char *n, const void *i, unsigned s, unsigned a=0);
-    // big endian
+    ~Section();
-    virtual unsigned get32(const void *b) const { return get_be32(b); }
-    virtual void set32(void *b, unsigned v) const { set_be32(b, v); }
-
-private:
-    // disable copy and assignment
-    BeLinker(BeLinker const &); // {}
-    BeLinker& operator= (BeLinker const &); // { return *this; }
 };
 
 
+struct ElfLinker::Symbol : private nocopy
+{
+    char *name;
+    Section *section;
+    unsigned offset;
+
+    Symbol(const char *n, Section *s, unsigned o);
+    ~Symbol();
+};
+
+
+struct ElfLinker::Relocation : private nocopy
+{
+    const Section *section;
+    unsigned offset;
+    const char *type;
+    const Symbol *value;
+    unsigned add;           // used in .rela relocations
+
+    Relocation(const Section *s, unsigned o, const char *t,
+               const Symbol *v, unsigned a);
+};
+
+
+/*************************************************************************
+// ElfLinker arch subclasses
+**************************************************************************/
+
+class ElfLinkerAMD64 : public ElfLinker
+{
+    typedef ElfLinker super;
+protected:
+    virtual void alignCode(unsigned len) { alignWithByte(len, 0x90); }
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+class ElfLinkerArmBE : public ElfLinker
+{
+    typedef ElfLinker super;
+public:
+    ElfLinkerArmBE() { bele = &N_BELE_RTP::be_policy; }
+protected:
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+class ElfLinkerArmLE : public ElfLinker
+{
+    typedef ElfLinker super;
+protected:
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+class ElfLinkerM68k : public ElfLinker
+{
+    typedef ElfLinker super;
+public:
+    ElfLinkerM68k() { bele = &N_BELE_RTP::be_policy; }
+protected:
+    virtual void alignCode(unsigned len);
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+class ElfLinkerMipsLE : public ElfLinker
+{
+    typedef ElfLinker super;
+protected:
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+class ElfLinkerPpc32 : public ElfLinker
+{
+    typedef ElfLinker super;
+public:
+    ElfLinkerPpc32() { bele = &N_BELE_RTP::be_policy; }
+protected:
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+class ElfLinkerX86 : public ElfLinker
+{
+    typedef ElfLinker super;
+protected:
+    virtual void alignCode(unsigned len) { alignWithByte(len, 0x90); }
+    virtual void relocate1(const Relocation *, upx_byte *location,
+                           unsigned value, const char *type);
+};
+
+
+
 #endif /* already included */
 
 

src/mem.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -34,11 +34,40 @@
 //
 **************************************************************************/
 
-MemBuffer::MemBuffer(unsigned size) :
+static int use_mcheck = -1;
-    ptr(NULL), alloc_ptr(NULL), alloc_size(0)
+
+static int mcheck_init()
 {
-    if (size > 0)
+    if (use_mcheck < 0)
-        alloc(size, 0);
+    {
+        use_mcheck = 1;
+#if defined(WITH_VALGRIND) && defined(RUNNING_ON_VALGRIND)
+        if (RUNNING_ON_VALGRIND)
+        {
+            //fprintf(stderr, "upx: detected RUNNING_ON_VALGRIND\n");
+            use_mcheck = 0;
+        }
+#endif
+    }
+    return use_mcheck;
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+MemBuffer::MemBuffer() :
+    b(NULL), b_size(0)
+{
+    if (use_mcheck < 0)
+        mcheck_init();
+}
+
+MemBuffer::MemBuffer(unsigned size) :
+    b(NULL), b_size(0)
+{
+    alloc(size);
 }
 
 
@@ -49,59 +78,139 @@ MemBuffer::~MemBuffer()
 
 void MemBuffer::dealloc()
 {
-    if (alloc_ptr)
+    if (b)
-        ::free(alloc_ptr);
+    {
-    alloc_ptr = ptr = NULL;
+        checkState();
-    alloc_size = 0;
+        if (use_mcheck)
+        {
+            // remove magic constants
+            set_be32(b - 8, 0);
+            set_be32(b - 4, 0);
+            set_be32(b + b_size, 0);
+            set_be32(b + b_size + 4, 0);
+            //
+            ::free(b - 16);
+        }
+        else
+            ::free(b);
+        b = NULL;
+        b_size = 0;
+    }
+    else
+        assert(b_size == 0);
 }
 
 
-unsigned MemBuffer::getSize() const
+unsigned MemBuffer::getSizeForCompression(unsigned uncompressed_size, unsigned extra)
 {
-    if (!alloc_ptr)
+    assert((int)uncompressed_size > 0);
-        return 0;
+    assert((int)extra >= 0);
-    unsigned size = alloc_size - (ptr - alloc_ptr);
+    unsigned size = uncompressed_size + uncompressed_size/8 + 256 + extra;
-    assert((int)size > 0);
+    return size;
+}
+
+unsigned MemBuffer::getSizeForUncompression(unsigned uncompressed_size, unsigned extra)
+{
+    assert((int)uncompressed_size > 0);
+    assert((int)extra >= 0);
+    unsigned size = uncompressed_size + extra;
+//    size += 512;   // 512 safety bytes
+    // INFO: 3 bytes are the allowed overrun for the i386 asm_fast decompressors
+#if (ACC_ARCH_I386)
+    size += 3;
+#endif
     return size;
 }
 
 
-void MemBuffer::alloc(unsigned size, unsigned base_offset)
+void MemBuffer::allocForCompression(unsigned uncompressed_size, unsigned extra)
 {
-    // NOTE: we don't automaticlly free a used buffer
+    unsigned size = getSizeForCompression(uncompressed_size, extra);
-    assert(alloc_ptr == NULL);
+    alloc(size);
-    assert((int)size > 0);
+}
-    size = base_offset + size;
+
-    alloc_ptr = (unsigned char *) malloc(size);
+
-    if (!alloc_ptr)
+void MemBuffer::allocForUncompression(unsigned uncompressed_size, unsigned extra)
+{
+    unsigned size = getSizeForUncompression(uncompressed_size, extra);
+    alloc(size);
+}
+
+
+void MemBuffer::fill(unsigned off, unsigned len, int value)
+{
+    checkState();
+    assert((int)off >= 0);
+    assert((int)len >= 0);
+    assert(off <= b_size);
+    assert(len <= b_size);
+    assert(off + len <= b_size);
+    if (len > 0)
+        memset(b + off, value, len);
+}
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+#define PTR(p)      ((unsigned) ((acc_uintptr_t)(p) & 0xffffffff))
+#define MAGIC1(p)   (PTR(p) ^ 0xfefdbeeb)
+#define MAGIC2(p)   (PTR(p) ^ 0xfefdbeeb ^ 0x80024001)
+
+unsigned MemBuffer::global_alloc_counter = 0;
+
+
+void MemBuffer::checkState() const
+{
+    if (!b)
+        throwInternalError("block not allocated");
+    if (use_mcheck)
     {
-        //throw bad_alloc();
+        if (get_be32(b - 4) != MAGIC1(b))
-        throwCantPack("out of memory");
+            throwInternalError("memory clobbered before allocated block 1");
-        //exit(1);
+        if (get_be32(b - 8) != b_size)
+            throwInternalError("memory clobbered before allocated block 2");
+        if (get_be32(b + b_size) != MAGIC2(b))
+            throwInternalError("memory clobbered past end of allocated block");
     }
-    alloc_size = size;
+    assert((int)b_size > 0);
-    ptr = alloc_ptr + base_offset;
 }
 
 
 void MemBuffer::alloc(unsigned size)
 {
-    alloc(size, 0);
+    if (use_mcheck < 0)
-}
+        mcheck_init();
 
+    // NOTE: we don't automatically free a used buffer
+    assert(b == NULL);
+    assert(b_size == 0);
+    //
+    assert((int)size > 0);
+    unsigned total = use_mcheck ? size + 32 : size;
+    assert((int)total > 0);
+    unsigned char *p = (unsigned char *) malloc(total);
+    if (!p)
+    {
+        //throw bad_alloc();
+        throw OutOfMemoryException("out of memory");
+        //exit(1);
+    }
+    b_size = size;
+    if (use_mcheck)
+    {
+        b = p + 16;
+        // store magic constants to detect buffer overruns
+        set_be32(b - 8, b_size);
+        set_be32(b - 4, MAGIC1(b));
+        set_be32(b + b_size, MAGIC2(b));
+        set_be32(b + b_size + 4, global_alloc_counter++);
+    }
+    else
+        b = p ;
 
-void MemBuffer::allocForCompression(unsigned uncompressed_size)
+    //fill(0, b_size, (rand() & 0xff) | 1); // debug
-{
-    assert((int)uncompressed_size > 0);
-    alloc(uncompressed_size + uncompressed_size/8 + 256, 0);
-}
-
-
-void MemBuffer::allocForUncompression(unsigned uncompressed_size)
-{
-    assert((int)uncompressed_size > 0);
-    //alloc(uncompressed_size + 3 + 512, 0);  // 512 safety bytes
-    alloc(uncompressed_size + 3, 0);  // 3 bytes for asm_fast decompresion
 }
 
 

src/mem.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -37,46 +37,44 @@
 class MemBuffer
 {
 public:
-    MemBuffer(unsigned size=0);
+    MemBuffer();
+    explicit MemBuffer(unsigned size);
     ~MemBuffer();
 
+    static unsigned getSizeForCompression(unsigned uncompressed_size, unsigned extra=0);
+    static unsigned getSizeForUncompression(unsigned uncompressed_size, unsigned extra=0);
+
     void alloc(unsigned size);
-    void allocForCompression(unsigned uncompressed_size);
+    void allocForCompression(unsigned uncompressed_size, unsigned extra=0);
-    void allocForUncompression(unsigned uncompressed_size);
+    void allocForUncompression(unsigned uncompressed_size, unsigned extra=0);
 
     void dealloc();
 
-    const unsigned char *getBuf()     const { return ptr; }
+    void checkState() const;
-    unsigned getSize() const;
 
-    operator       unsigned char * ()       { return ptr; }
+    unsigned getSize() const { return b_size; }
-    //operator const unsigned char * () const { return ptr; }
 
-          void *getVoidPtr()                { return (void *) ptr; }
+    operator       unsigned char * ()       { return b; }
-    const void *getVoidPtr() const          { return (const void *) ptr; }
+    //operator const unsigned char * () const { return b; }
+          void *getVoidPtr()                { return (void *) b; }
+    const void *getVoidPtr() const          { return (const void *) b; }
+
+    void fill(unsigned off, unsigned len, int value);
+    void clear(unsigned off, unsigned len)  { fill(off, len, 0); }
+    void clear()                            { fill(0, b_size, 0); }
 
 private:
-    void alloc(unsigned size, unsigned base_offset);
+    unsigned char *b;
+    unsigned b_size;
 
-protected:
+    static unsigned global_alloc_counter;
-    unsigned char *ptr;
-    unsigned char *alloc_ptr;
-    unsigned alloc_size;
 
-private:
     // disable copy and assignment
-    MemBuffer(MemBuffer const &); // {}
+    MemBuffer(const MemBuffer &); // {}
-    MemBuffer& operator= (MemBuffer const &); // { return *this; }
+    MemBuffer& operator= (const MemBuffer &); // { return *this; }
 
     // disable dynamic allocation
-#ifndef new
+    DISABLE_NEW_DELETE
-    static void *operator new (size_t); // {}
-    static void *operator new[] (size_t); // {}
-#endif
-#ifndef delete
-    //static void operator delete (void *) {}
-    //static void operator delete[] (void *) {}
-#endif
 };
 
 #endif /* already included */

src/msg.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -66,9 +66,9 @@ void printClearLine(FILE *f)
 static void pr_print(bool c, const char *msg)
 {
     if (c && !opt->to_stdout)
-        con_fprintf(stderr,msg);
+        con_fprintf(stderr, "%s", msg);
     else
-        fprintf(stderr,msg);
+        fprintf(stderr, "%s", msg);
 }
 
 static void pr_error(const char *iname, const char *msg, bool is_warning)
@@ -88,7 +88,7 @@ static void pr_error(const char *iname, const char *msg, bool is_warning)
     // This hack is needed, otherwise error messages may get lost
     // when the cursor is not yet at the bottom of the screen.
     // At least I can use some colors then...
-    bool c = isatty(STDERR_FILENO) ? 1 : 0;
+    bool c = acc_isatty(STDERR_FILENO) ? 1 : 0;
 
     int fg = con_fg(stderr,FG_BRTRED);
     upx_snprintf(buf+strlen(buf),sizeof(buf)-strlen(buf),"%s: ", progname);
@@ -103,23 +103,35 @@ static void pr_error(const char *iname, const char *msg, bool is_warning)
     fg = con_fg(stderr,fg);
 
     UNUSED(is_warning);
+    UNUSED(fg);
 }
 
 
 void printErr(const char *iname, const Throwable *e)
 {
     char buf[1024];
+    size_t l;
 
-    upx_snprintf(buf, sizeof(buf), "%s", prettyName(typeid(*e)));
+    upx_snprintf(buf, sizeof(buf), "%s", prettyName(typeid(*e).name()));
-    if (e->getMsg())
+    l = strlen(buf);
-        upx_snprintf(buf+strlen(buf),sizeof(buf)-strlen(buf),": %s", e->getMsg());
+    if (l < sizeof(buf) && e->getMsg())
-    if (e->getErrno())
+        upx_snprintf(buf+l, sizeof(buf)-l, ": %s", e->getMsg());
-        upx_snprintf(buf+strlen(buf),sizeof(buf)-strlen(buf),": %s", strerror(e->getErrno()));
+    l = strlen(buf);
+    if (l < sizeof(buf) && e->getErrno()) {
+        upx_snprintf(buf+l, sizeof(buf)-l, ": %s", strerror(e->getErrno()));
+#if 1
+        // some compilers (e.g. Borland C++) put a trailing '\n'
+        // into strerror() result
+        l = strlen(buf);
+        while (l-- > 0 && (buf[l] == '\n' || buf[l] == ' '))
+            buf[l] = 0;
+#endif
+    }
     pr_error(iname,buf,e->isWarning());
 }
 
 
-void printErr(const char *iname, const char *format, ...)
+void __acc_cdecl_va printErr(const char *iname, const char *format, ...)
 {
     va_list args;
     char buf[1024];
@@ -132,7 +144,7 @@ void printErr(const char *iname, const char *format, ...)
 }
 
 
-void printWarn(const char *iname, const char *format, ...)
+void __acc_cdecl_va printWarn(const char *iname, const char *format, ...)
 {
     va_list args;
     char buf[1024];
@@ -189,7 +201,7 @@ void infoHeader()
     info_header = 0;
 }
 
-void infoHeader(const char *format, ...)
+void __acc_cdecl_va infoHeader(const char *format, ...)
 {
     if (opt->info_mode <= 0)
         return;
@@ -203,7 +215,7 @@ void infoHeader(const char *format, ...)
 }
 
 
-void info(const char *format, ...)
+void __acc_cdecl_va info(const char *format, ...)
 {
     if (opt->info_mode <= 0)
         return;
@@ -218,7 +230,7 @@ void info(const char *format, ...)
 }
 
 
-void infoWarning(const char *format, ...)
+void __acc_cdecl_va infoWarning(const char *format, ...)
 {
     if (opt->info_mode <= 0)
     {

src/mygetopt.cpp

@@ -21,11 +21,22 @@
    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 
-#include "tailor.h"
+
+#undef PROGNAME
+#if 0
 #ifndef EOF
 #include <stdio.h>
 #include <string.h>
 #endif
+#define PROGNAME(x)     (x)
+#else
+#include "conf.h"
+static const char *my_progname(const char *argv0)
+{
+    return progname ? progname : argv0;
+}
+#define PROGNAME(x)     my_progname(x)
+#endif
 
 
 /* If GETOPT_COMPAT is defined, `+' as well as `--' can introduce a
@@ -54,8 +65,6 @@
 #define optind                  mfx_optind
 #define opterr                  mfx_opterr
 #define optopt                  mfx_optopt
-#define my_index                strchr
-#define my_strlen               strlen
 #undef BAD_OPTION
 
 /* For communication from `getopt' to the caller.
@@ -167,7 +176,7 @@ static int last_nonopt;
 
 static void exchange (char **argv)
 {
-  char *temp, **first, **last;
+  char *temp; char **first, **last;
 
   /* Reverse all the elements [first_nonopt, optind) */
   first = &argv[first_nonopt];
@@ -382,15 +391,10 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
       int indfound = 0;
       int needexact = 0;
 
-#if defined(DOSISH)
       /* allow `--option#value' because you cannout assign a '='
          to an environment variable under DOS command.com */
       while (*s && *s != '=' && * s != '#')
         s++;
-#else
-      while (*s && *s != '=')
-        s++;
-#endif
 
       /* Test all options for either exact match or abbreviated matches.  */
       for (p = longopts, option_index = 0; p->name;
@@ -399,7 +403,7 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
           {
             if (p->has_arg & 0x10)
               needexact = 1;
-            if ((unsigned) (s - nextchar) == my_strlen (p->name))
+            if ((unsigned) (s - nextchar) == strlen (p->name))
               {
                 /* Exact match found.  */
                 pfound = p;
@@ -423,8 +427,8 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
         {
           if (opterr)
             fprintf (stderr, "%s: unrecognized option `%s'\n",
-                     argv[0], argv[optind]);
+                     PROGNAME(argv[0]), argv[optind]);
-          nextchar += my_strlen (nextchar);
+          nextchar += strlen (nextchar);
           optind++;
           return BAD_OPTION;
         }
@@ -432,8 +436,8 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
         {
           if (opterr)
             fprintf (stderr, "%s: option `%s' is ambiguous\n",
-                     argv[0], argv[optind]);
+                     PROGNAME(argv[0]), argv[optind]);
-          nextchar += my_strlen (nextchar);
+          nextchar += strlen (nextchar);
           optind++;
           return BAD_OPTION;
         }
@@ -459,14 +463,14 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
                         /* --option */
                         fprintf (stderr,
                                  "%s: option `--%s' doesn't allow an argument\n",
-                                 argv[0], pfound->name);
+                                 PROGNAME(argv[0]), pfound->name);
                       else
                         /* +option or -option */
                         fprintf (stderr,
                              "%s: option `%c%s' doesn't allow an argument\n",
-                             argv[0], argv[optind - 1][0], pfound->name);
+                             PROGNAME(argv[0]), argv[optind - 1][0], pfound->name);
                     }
-                  nextchar += my_strlen (nextchar);
+                  nextchar += strlen (nextchar);
                   return BAD_OPTION;
                 }
             }
@@ -482,13 +486,13 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
                 {
                   if (opterr)
                     fprintf (stderr, "%s: option `--%s%s' requires an argument\n",
-                             argv[0], pfound->name,
+                             PROGNAME(argv[0]), pfound->name,
                              (pfound->has_arg & 0x20) ? "=" : "");
-                  nextchar += my_strlen (nextchar);
+                  nextchar += strlen (nextchar);
                   return optstring[0] == ':' ? ':' : BAD_OPTION;
                 }
             }
-          nextchar += my_strlen (nextchar);
+          nextchar += strlen (nextchar);
           if (longind != NULL)
             *longind = option_index;
           if (pfound->flag)
@@ -506,31 +510,31 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
 #ifdef GETOPT_COMPAT
           || argv[optind][0] == '+'
 #endif                          /* GETOPT_COMPAT */
-          || my_index (optstring, *nextchar) == NULL)
+          || strchr (optstring, *nextchar) == NULL)
         {
           if (opterr)
             {
               if (argv[optind][1] == '-')
                 /* --option */
                 fprintf (stderr, "%s: unrecognized option `--%s'\n",
-                         argv[0], nextchar);
+                         PROGNAME(argv[0]), nextchar);
               else
                 /* +option or -option */
                 fprintf (stderr, "%s: unrecognized option `%c%s'\n",
-                         argv[0], argv[optind][0], nextchar);
+                         PROGNAME(argv[0]), argv[optind][0], nextchar);
             }
           nextchar = empty_string;
           optind++;
           return BAD_OPTION;
         }
-        ambig = ambig;
+        (void) &ambig;  /* UNUSED */
     }
 
   /* Look at and handle the next option-character.  */
 
   {
     char c = *nextchar++;
-    const char *temp = my_index (optstring, c);
+    const char *temp = strchr (optstring, c);
 
     /* Increment `optind' when we start to process its last character.  */
     if (*nextchar == '\0')
@@ -543,12 +547,12 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
 #if 0
             if (c < 040 || c >= 0177)
               fprintf (stderr, "%s: unrecognized option, character code 0%o\n",
-                       argv[0], c);
+                       PROGNAME(argv[0]), c);
             else
-              fprintf (stderr, "%s: unrecognized option `-%c'\n", argv[0], c);
+              fprintf (stderr, "%s: unrecognized option `-%c'\n", PROGNAME(argv[0]), c);
 #else
             /* 1003.2 specifies the format of this message.  */
-            fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
+            fprintf (stderr, "%s: illegal option -- %c\n", PROGNAME(argv[0]), c);
 #endif
           }
         optopt = c;
@@ -584,11 +588,11 @@ static int _getopt_internal (int argc, char **argv, const char *optstring,
                   {
 #if 0
                     fprintf (stderr, "%s: option `-%c' requires an argument\n",
-                             argv[0], c);
+                             PROGNAME(argv[0]), c);
 #else
                     /* 1003.2 specifies the format of this message.  */
                     fprintf (stderr, "%s: option requires an argument -- %c\n",
-                             argv[0], c);
+                             PROGNAME(argv[0]), c);
 #endif
                   }
                 optopt = c;
@@ -694,3 +698,9 @@ main (argc, argv)
 }
 
 #endif /* TEST */
+
+
+/*
+vi:ts=4:et:nowrap
+*/
+

src/mygetopt.h

@@ -19,7 +19,7 @@
 #define __MFX_GETOPT_H 1
 
 #ifdef __cplusplus
-//extern "C" {
+/* extern "C" { */
 #endif
 
 /* For communication from `getopt' to the caller.
@@ -96,7 +96,7 @@ int mfx_getopt_long(int argc, char **argv, const char *shortopts,
                     const struct mfx_option *longopts, int *longind);
 
 #ifdef __cplusplus
-//}
+/* } */
 #endif
 
-#endif /* _GETOPT_H */
+#endif /* __MFX_GETOPT_H */

src/options.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -47,15 +47,22 @@ struct options_t {
 
     // compression options
     int method;
-    int level;          // compression level 1..10
+    bool method_lzma_seen;
-    int filter;         // preferred filter from Packer::getFilters()
+    bool method_nrv2b_seen;
-    bool all_methods;   // try all available compression methods ?
+    bool method_nrv2d_seen;
-    bool all_filters;   // try all available filters ?
+    bool method_nrv2e_seen;
+    int level;              // compression level 1..10
+    int filter;             // preferred filter from Packer::getFilters()
+    bool ultra_brute;
+    bool all_methods;       // try all available compression methods ?
+    bool all_methods_use_lzma;
+    bool all_filters;       // try all available filters ?
+    bool no_filter;         // force no filter
+    bool exact;             // user requires byte-identical decompression
 
     // other options
     int backup;
     int console;
-    int debug;
     int force;
     int info_mode;
     bool ignorewarn;
@@ -66,6 +73,15 @@ struct options_t {
     int verbose;
     bool to_stdout;
 
+    // debug options
+    struct {
+        int debug_level;
+        bool disable_random_id;         // for Packer::getRandomId()
+        const char *dump_stub_loader;
+        char fake_stub_version[4+1];    // for internal debugging
+        char fake_stub_year[4+1];       // for internal debugging
+    } debug;
+
     // overlay handling
     enum {
         SKIP_OVERLAY      = 0,
@@ -74,16 +90,14 @@ struct options_t {
     };
     int overlay;
 
-    // compression runtime parameters - see struct ucl_compress_config_t
+    // compression runtime parameters - see struct XXX_compress_config_t
-    struct {
+    struct crp_t {
-        upx_uint max_offset;
+        lzma_compress_config_t  crp_lzma;
-        upx_uint max_match;
+        ucl_compress_config_t   crp_ucl;
-        int s_level;
+        zlib_compress_config_t  crp_zlib;
-        int h_level;
+        void reset() { crp_lzma.reset(); crp_ucl.reset(); crp_zlib.reset(); }
-        int p_level;
+    };
-        int c_flags;
+    crp_t crp;
-        upx_uint m_size;
-    } crp;
 
     // CPU
     enum {
@@ -99,38 +113,47 @@ struct options_t {
 
     // options for various executable formats
     struct {
-        bool force_stub;
+        bool split_segments;
-        bool no_reloc;
+    } atari_tos;
-    } dos;
     struct {
         bool coff;
-    } djgpp2;
+    } djgpp2_coff;
     struct {
+        bool force_stub;
+        bool no_reloc;
+    } dos_exe;
+    struct {
+        bool boot_only;
         bool no_align;
-    } ps1;
+        bool do_8bit;
-    struct {
+        bool do_8mb;
-        bool split_segments;
+    } ps1_exe;
-    } tos;
     struct {
         unsigned blocksize;
         bool force_execve;          // force the linux/386 execve format
-        bool ptinterp;              // is PT_INTERP, so don't adjust auxv_t
+        bool is_ptinterp;           // is PT_INTERP, so don't adjust auxv_t
+        bool use_ptinterp;          // use PT_INTERP /opt/upx/run
+        bool make_ptinterp;         // make PT_INTERP [ignore current file!]
+        unsigned char osabi0;       // replacement if 0==.e_ident[EI_OSABI]
         enum { SCRIPT_MAX = 32 };
         const char *script_name;
-    } unix;
+    } o_unix;
     struct {
         bool le;
-    } wcle;
+    } watcom_le;
     struct {
         int compress_exports;
         int compress_icons;
         int compress_resources;
         signed char compress_rt[25];    // 25 == RT_LAST
         int strip_relocs;
-    } w32pe;
+        const char *keep_resource;
+    } win32_pe;
+
+    void reset();
 };
 
-extern struct options_t * volatile opt;
+extern struct options_t *opt;
 
 
 #endif /* already included */

src/p_armpe.h

@@ -0,0 +1,73 @@
+/* p_armpe.h --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer   Laszlo Molnar
+   markus@oberhumer.com      ml1050@users.sourceforge.net
+ */
+
+
+#ifndef __UPX_P_ARMPE_H
+#define __UPX_P_ARMPE_H
+
+/*************************************************************************
+// arm/pe
+**************************************************************************/
+
+class PackArmPe : public PeFile
+{
+    typedef PeFile super;
+
+public:
+    PackArmPe(InputFile *f);
+    virtual ~PackArmPe();
+    virtual int getFormat() const { return UPX_F_WINCE_ARM_PE; }
+    virtual const char *getName() const { return "arm/pe"; }
+    virtual const char *getFullName(const options_t *) const { return "arm-wince.pe"; }
+    virtual const int *getCompressionMethods(int method, int level) const;
+    virtual const int *getFilters() const;
+
+    virtual void pack(OutputFile *fo);
+
+    virtual bool canPack();
+    virtual int canUnpack();
+
+protected:
+    virtual void buildLoader(const Filter *ft);
+    virtual Linker* newLinker() const;
+
+    virtual unsigned processImports();
+    virtual void processImports(unsigned, unsigned);
+    virtual void rebuildImports(upx_byte *&);
+
+    virtual void processTls(Interval *);
+
+    bool use_thumb_stub;
+};
+
+
+#endif /* already included */
+
+
+/*
+vi:ts=4:et
+*/

src/p_com.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -31,9 +31,10 @@
 #include "filter.h"
 #include "packer.h"
 #include "p_com.h"
+#include "linker.h"
 
 static const
-#include "stub/l_com.h"
+#include "stub/i086-dos16.com.h"
 
 //#define TESTING
 
@@ -44,16 +45,11 @@ static const
 
 const int *PackCom::getCompressionMethods(int method, int level) const
 {
-    static const int m_nrv2b[] = { M_NRV2B_LE16, -1 };
+    static const int m_nrv2b[] = { M_NRV2B_LE16, M_END };
-    if (M_IS_NRV2B(method))
-        return m_nrv2b;
 #if 0
-    // NOT IMPLEMENTED
+    static const int m_nrv2d[] = { M_NRV2D_LE16, M_END };
-    static const int m_nrv2d[] = { M_NRV2D_LE16, -1 };
-    if (M_IS_NRV2D(method))
-        return m_nrv2d;
 #endif
-    UNUSED(level);
+    UNUSED(method); UNUSED(level);
     return m_nrv2b;
 }
 
@@ -62,7 +58,7 @@ const int *PackCom::getFilters() const
 {
     static const int filters[] = {
         0x06, 0x03, 0x04, 0x01, 0x05, 0x02,
-    -1 };
+    FT_END };
     return filters;
 }
 
@@ -98,10 +94,9 @@ void PackCom::patchLoader(OutputFile *fo,
                           upx_byte *loader, int lsize,
                           unsigned calls)
 {
-    const int filter_id = ph.filter;
     const int e_len = getLoaderSectionStart("COMCUTPO");
     const int d_len = lsize - e_len;
-    assert(e_len > 0 && e_len < 256);
+    assert(e_len > 0 && e_len < 128);
     assert(d_len > 0 && d_len < 256);
 
     const unsigned upper_end = ph.u_len + ph.overlap_overhead + d_len + 0x100;
@@ -111,22 +106,19 @@ void PackCom::patchLoader(OutputFile *fo,
     if (upper_end + stacksize > 0xfffe)
         throwCantPack("file is too big for dos/com");
 
-    if (filter_id)
+    linker->defineSymbol("calltrick_calls", calls);
-    {
+    linker->defineSymbol("sp_limit", upper_end + stacksize);
-        assert(calls > 0);
+    linker->defineSymbol("bytes_to_copy", ph.c_len + lsize);
-        patch_le16(loader,lsize,"CT",calls);
+    linker->defineSymbol("copy_source", ph.c_len + lsize + 0x100);
-    }
+    linker->defineSymbol("copy_destination", upper_end);
+    linker->defineSymbol("neg_e_len", 0 - e_len);
+    linker->defineSymbol("NRV2B160", ph.u_len + ph.overlap_overhead);
 
+    relocateLoader();
+    loader = getLoader();
+
+    // some day we could use the relocation stuff for patchPackHeader too
     patchPackHeader(loader,e_len);
-
-    // NOTE: Depends on: decompr_start == cutpoint+1 !!!
-    patch_le16(loader,e_len,"JM",upper_end - 0xff - d_len - getLoaderSection("UPX1HEAD"));
-    loader[getLoaderSectionStart("COMSUBSI") - 1] = (upx_byte) -e_len;
-    patch_le16(loader,e_len,"DI",upper_end);
-    patch_le16(loader,e_len,"SI",ph.c_len + lsize + 0x100);
-    patch_le16(loader,e_len,"CX",ph.c_len + lsize);
-    patch_le16(loader,e_len,"SP",upper_end + stacksize);
-
     // write loader + compressed file
     fo->write(loader,e_len);            // entry
     fo->write(obuf,ph.c_len);
@@ -139,18 +131,18 @@ void PackCom::patchLoader(OutputFile *fo,
 }
 
 
-int PackCom::buildLoader(const Filter *ft)
+void PackCom::buildLoader(const Filter *ft)
 {
-    initLoader(nrv2b_loader,sizeof(nrv2b_loader));
+    initLoader(stub_i086_dos16_com, sizeof(stub_i086_dos16_com));
-    addLoader("COMMAIN1""COMSUBSI",
+    addLoader("COMMAIN1",
               ph.first_offset_found == 1 ? "COMSBBBP" : "",
               "COMPSHDI",
               ft->id ? "COMCALLT" : "",
-              "COMMAIN2""UPX1HEAD""COMCUTPO""NRV2B160",
+              "COMMAIN2,UPX1HEAD,COMCUTPO,NRV2B160",
               ft->id ? "NRVDDONE" : "NRVDRETU",
               "NRVDECO1",
               ph.max_offset_found <= 0xd00 ? "NRVLED00" : "NRVGTD00",
-              "NRVDECO2""NRV2B169",
+              "NRVDECO2",
               NULL
              );
     if (ft->id)
@@ -158,7 +150,6 @@ int PackCom::buildLoader(const Filter *ft)
         assert(ft->calls > 0);
         addFilter16(ft->id);
     }
-    return getLoaderSize();
 }
 
 
@@ -170,7 +161,7 @@ void PackCom::addFilter16(int filter_id)
     if (filter_id % 3 == 0)
         addLoader("CALLTR16",
                   filter_id < 4 ? "CT16SUB0" : "",
-                  filter_id < 4 ? "" : (opt->cpu == opt->CPU_8086 ? "CT16I086" : "CT16I286""CT16SUB0"),
+                  filter_id < 4 ? "" : (opt->cpu == opt->CPU_8086 ? "CT16I086" : "CT16I286,CT16SUB0"),
                   "CALLTRI2",
                   getFormat() == UPX_F_DOS_COM ? "CORETURN" : "",
                   NULL
@@ -180,7 +171,7 @@ void PackCom::addFilter16(int filter_id)
                   "CALLTRI5",
                   getFormat() == UPX_F_DOS_COM ? "CT16JEND" : "CT16JUL2",
                   filter_id < 4 ? "CT16SUB1" : "",
-                  filter_id < 4 ? "" : (opt->cpu == opt->CPU_8086 ? "CT16I087" : "CT16I287""CT16SUB1"),
+                  filter_id < 4 ? "" : (opt->cpu == opt->CPU_8086 ? "CT16I087" : "CT16I287,CT16SUB1"),
                   "CALLTRI6",
                   NULL
                  );
@@ -206,7 +197,7 @@ void PackCom::pack(OutputFile *fo)
     ft.addvalue = getCallTrickOffset();
     // compress
     const unsigned overlap_range = ph.u_len < 0xFE00 - ft.addvalue ? 32 : 0;
-    compressWithFilters(&ft, overlap_range);
+    compressWithFilters(&ft, overlap_range, NULL_cconf);
 
     const int lsize = getLoaderSize();
     MemBuffer loader(lsize);
@@ -270,6 +261,12 @@ void PackCom::unpack(OutputFile *fo)
 }
 
 
+Linker* PackCom::newLinker() const
+{
+    return new ElfLinkerX86();
+}
+
+
 /*
 vi:ts=4:et
 */

src/p_com.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -38,10 +38,11 @@ class PackCom : public Packer
 {
     typedef Packer super;
 public:
-    PackCom(InputFile *f) : super(f) { }
+    PackCom(InputFile *f) : super(f) { bele = &N_BELE_RTP::le_policy; }
     virtual int getVersion() const { return 13; }
     virtual int getFormat() const { return UPX_F_DOS_COM; }
     virtual const char *getName() const { return "dos/com"; }
+    virtual const char *getFullName(const options_t *o) const { return o && o->cpu == o->CPU_8086 ? "i086-dos16.com" : "i286-dos16.com"; }
     virtual const int *getCompressionMethods(int method, int level) const;
     virtual const int *getFilters() const;
 
@@ -52,10 +53,11 @@ public:
     virtual int canUnpack();
 
 protected:
-    virtual const unsigned getCallTrickOffset() const { return 0x100; }
+    virtual unsigned getCallTrickOffset() const { return 0x100; }
+    virtual Linker* newLinker() const;
 
 protected:
-    virtual int buildLoader(const Filter *ft);
+    virtual void buildLoader(const Filter *ft);
     virtual void patchLoader(OutputFile *fo, upx_byte *, int, unsigned);
     virtual void addFilter16(int filter_id);
 };

src/p_djgpp2.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -31,12 +31,12 @@
 #include "filter.h"
 #include "packer.h"
 #include "p_djgpp2.h"
+#include "linker.h"
 
 static const
-#include "stub/stubify.h"
+#include "stub/i386-dos32.djgpp2.h"
-
 static const
-#include "stub/l_djgpp2.h"
+#include "stub/i386-dos32.djgpp2-stubify.h"
 
 
 /*************************************************************************
@@ -46,13 +46,16 @@ static const
 PackDjgpp2::PackDjgpp2(InputFile *f) :
     super(f), coff_offset(0)
 {
-    COMPILE_TIME_ASSERT(sizeof(external_scnhdr_t) == 40);
+    bele = &N_BELE_RTP::le_policy;
-    COMPILE_TIME_ASSERT(sizeof(coff_header_t) == 0xa8);
+    COMPILE_TIME_ASSERT(sizeof(external_scnhdr_t) == 40)
-    COMPILE_TIME_ASSERT(sizeof(stubify_stub) == 2048);
+    COMPILE_TIME_ASSERT(sizeof(coff_header_t) == 0xa8)
-#if defined(STUBIFY_STUB_ADLER32)
+    COMPILE_TIME_ASSERT_ALIGNED1(external_scnhdr_t)
+    COMPILE_TIME_ASSERT_ALIGNED1(coff_header_t)
+    COMPILE_TIME_ASSERT(sizeof(stub_i386_dos32_djgpp2_stubify) == 2048)
+    COMPILE_TIME_ASSERT(STUB_I386_DOS32_DJGPP2_STUBIFY_ADLER32 == 0xbf689ba8)
+    COMPILE_TIME_ASSERT(STUB_I386_DOS32_DJGPP2_STUBIFY_CRC32   == 0x2ae982b2)
     //printf("0x%08x\n", upx_adler32(stubify_stub, sizeof(stubify_stub)));
-    assert(upx_adler32(stubify_stub, sizeof(stubify_stub)) == STUBIFY_STUB_ADLER32);
+    //assert(upx_adler32(stubify_stub, sizeof(stubify_stub)) == STUBIFY_STUB_ADLER32);
-#endif
 }
 
 
@@ -65,8 +68,9 @@ const int *PackDjgpp2::getCompressionMethods(int method, int level) const
 const int *PackDjgpp2::getFilters() const
 {
     static const int filters[] = {
-        0x26, 0x24, 0x11, 0x14, 0x13, 0x16, 0x25, 0x15, 0x12,
+        0x26, 0x24, 0x49, 0x46, 0x16, 0x13, 0x14, 0x11,
-    -1 };
+        FT_ULTRA_BRUTE, 0x25, 0x15, 0x12,
+    FT_END };
     return filters;
 }
 
@@ -81,25 +85,32 @@ unsigned PackDjgpp2::findOverlapOverhead(const upx_bytep buf,
 }
 
 
-int PackDjgpp2::buildLoader(const Filter *ft)
+Linker* PackDjgpp2::newLinker() const
+{
+    return new ElfLinkerX86;
+}
+
+
+void PackDjgpp2::buildLoader(const Filter *ft)
 {
     // prepare loader
-    initLoader(nrv_loader,sizeof(nrv_loader));
+    initLoader(stub_i386_dos32_djgpp2, sizeof(stub_i386_dos32_djgpp2));
-    addLoader("IDENTSTR""DJ2MAIN1",
+    addLoader("IDENTSTR,DJ2MAIN1",
               ft->id ? "DJCALLT1" : "",
-              "DJ2MAIN2",
+              ph.first_offset_found == 1 ? "DJ2MAIN2" : "",
-              getDecompressor(),
+              M_IS_LZMA(ph.method) ? "LZMA_INIT_STACK" : "",
+              getDecompressorSections(),
+              M_IS_LZMA(ph.method) ? "LZMA_DONE_STACK" : "",
               "DJ2BSS00",
               NULL
              );
     if (ft->id)
     {
         assert(ft->calls > 0);
-        addLoader("DJCALLT2",NULL);
+        addLoader("DJCALLT2", NULL);
         addFilter32(ft->id);
     }
-    addLoader("DJRETURN+40DXXXXUPX1HEAD",NULL);
+    addLoader("DJRETURN,+40C,UPX1HEAD", NULL);
-    return getLoaderSize();
 }
 
 
@@ -109,18 +120,18 @@ int PackDjgpp2::buildLoader(const Filter *ft)
 
 void PackDjgpp2::handleStub(OutputFile *fo)
 {
-    if (fo && !opt->djgpp2.coff)
+    if (fo && !opt->djgpp2_coff.coff)
     {
         if (coff_offset > 0)
         {
             // copy stub from exe
-            Packer::handleStub(fi,fo,coff_offset);
+            Packer::handleStub(fi, fo, coff_offset);
         }
         else
         {
             // "stubify" stub
-            info("Adding stub: %ld bytes", (long)sizeof(stubify_stub));
+            info("Adding stub: %ld bytes", (long)sizeof(stub_i386_dos32_djgpp2_stubify));
-            fo->write(stubify_stub,sizeof(stubify_stub));
+            fo->write(stub_i386_dos32_djgpp2_stubify, sizeof(stub_i386_dos32_djgpp2_stubify));
         }
     }
 }
@@ -132,14 +143,14 @@ static bool is_dlm(InputFile *fi, long coff_offset)
     long off;
 
     try {
-        fi->seek(coff_offset,SEEK_SET);
+        fi->seek(coff_offset, SEEK_SET);
-        fi->readx(buf,4);
+        fi->readx(buf, 4);
         off = get_le32(buf);
         if (off < 0 || off > coff_offset + 4)
             return false;
-        fi->seek(off,SEEK_SET);
+        fi->seek(off, SEEK_SET);
-        fi->readx(buf,4);
+        fi->readx(buf, 4);
-        if (memcmp(buf,"DLMF",4) == 0)
+        if (memcmp(buf, "DLMF", 4) == 0)
             return true;
     } catch (const IOException&) {
     }
@@ -158,7 +169,7 @@ static void handle_allegropak(InputFile *fi, OutputFile *fo)
         if (memcmp(buf, "slh+", 4) != 0)
             return;
         pfsize = get_be32_signed(buf+4);
-        if (pfsize <= 8 || pfsize >= fi->st.st_size)
+        if (pfsize <= 8 || (off_t) pfsize >= (off_t) fi->st.st_size)
             return;
         fi->seek(-pfsize, SEEK_END);
     } catch (const IOException&) {
@@ -179,25 +190,25 @@ int PackDjgpp2::readFileHeader()
     unsigned char hdr[0x1c];
     unsigned char magic[8];
 
-    fi->seek(0,SEEK_SET);
+    fi->seek(0, SEEK_SET);
-    fi->readx(hdr,sizeof(hdr));
+    fi->readx(hdr, sizeof(hdr));
     if (get_le16(hdr) == 0x5a4d)        // MZ exe signature, stubbed?
     {
         coff_offset = 512 * get_le16(hdr+4);
         if (get_le16(hdr+2) != 0)
             coff_offset += get_le16(hdr+2) - 512;
-        fi->seek(512,SEEK_SET);
+        fi->seek(512, SEEK_SET);
-        fi->readx(magic,8);
+        fi->readx(magic, 8);
-        if (memcmp("go32stub",magic,8) != 0)
+        if (memcmp("go32stub", magic, 8) != 0)
             return 0;                   // not V2 image
-        fi->seek(coff_offset,SEEK_SET);
+        fi->seek(coff_offset, SEEK_SET);
-        if (fi->read(&coff_hdr,sizeof(coff_hdr)) != sizeof(coff_hdr))
+        if (fi->read(&coff_hdr, sizeof(coff_hdr)) != sizeof(coff_hdr))
             throwCantPack("skipping djgpp symlink");
     }
     else
     {
-        fi->seek(coff_offset,SEEK_SET);
+        fi->seek(coff_offset, SEEK_SET);
-        fi->readx(&coff_hdr,0xa8);
+        fi->readx(&coff_hdr, 0xa8);
     }
     if (coff_hdr.f_magic != 0x014c)    // I386MAGIC
         return 0;
@@ -220,7 +231,7 @@ void PackDjgpp2::stripDebug()
     coff_hdr.f_symptr = 0;
     coff_hdr.f_nsyms = 0;
     coff_hdr.f_flags = 0x10f;   // 0x100: "32 bit machine: LSB first"
-    memset(text->misc,0,12);
+    memset(text->misc, 0, 12);
 }
 
 
@@ -232,7 +243,7 @@ bool PackDjgpp2::canPack()
 {
     if (!readFileHeader())
         return false;
-    if (is_dlm(fi,coff_offset))
+    if (is_dlm(fi, coff_offset))
         throwCantPack("can't handle DLM");
 
     if (opt->force == 0)
@@ -269,56 +280,60 @@ void PackDjgpp2::pack(OutputFile *fo)
     // read file
     const unsigned size = text->size + data->size;
     const unsigned tpos = text->scnptr;
-    const unsigned usize = size + (tpos & 0x1ff);
+    const unsigned hdrsize = 20 + 28 + sizeof(external_scnhdr_t) * coff_hdr.f_nscns;
-    const unsigned hdrsize = 20 + 28 + (40 * coff_hdr.f_nscns);
+    const unsigned usize = size + hdrsize;
     if (hdrsize < sizeof(coff_hdr) || hdrsize > tpos)
         throwCantPack("coff header error");
-    if (hdrsize > (tpos & 0x1ff))
-        throwCantPack("unsupported coff header");
 
     ibuf.alloc(usize);
     obuf.allocForCompression(usize);
 
-    fi->seek(coff_offset,SEEK_SET);
+    fi->seek(coff_offset, SEEK_SET);
-    fi->readx(ibuf,hdrsize);             // orig. coff header
+    fi->readx(ibuf, hdrsize);             // orig. coff header
-    memset(ibuf + hdrsize, 0, tpos - hdrsize);
+    fi->seek(coff_offset + tpos, SEEK_SET);
-    fi->seek(coff_offset+tpos,SEEK_SET);
+    fi->readx(ibuf + hdrsize, size);
-    fi->readx(ibuf + (tpos & 0x1ff),size);
 
     // prepare packheader
     ph.u_len = usize;
     // prepare filter
     Filter ft(ph.level);
     ft.buf_len = usize - data->size;
-    ft.addvalue = text->vaddr & ~0x1ff;
+    ft.addvalue = text->vaddr - hdrsize;
     // compress
-    compressWithFilters(&ft, 512);
+    upx_compress_config_t cconf; cconf.reset();
+    // limit stack size needed for runtime decompression
+    cconf.conf_lzma.max_num_probs = 1846 + (768 << 4); // ushort: ~28KB stack
+    compressWithFilters(&ft, 512, &cconf);
 
     // patch coff header #2
     const unsigned lsize = getLoaderSize();
+    assert(lsize % 4 == 0);
     text->size = lsize;                   // new size of .text
     data->size = ph.c_len;                // new size of .data
 
-    if (bss->size < ph.overlap_overhead)  // give it a .bss
+    unsigned stack = 1024 + ph.overlap_overhead + getDecompressorWrkmemSize();
-        bss->size = ph.overlap_overhead;
+    stack = ALIGN_UP(stack, 16u);
+    if (bss->size < stack)  // give it a .bss
+        bss->size = stack;
 
     text->scnptr = sizeof(coff_hdr);
     data->scnptr = text->scnptr + text->size;
     data->vaddr = bss->vaddr + ((data->scnptr + data->size) & 0x1ff) - data->size + ph.overlap_overhead - 0x200;
     coff_hdr.f_nscns = 3;
 
-    // prepare loader
+    linker->defineSymbol("original_entry", coff_hdr.a_entry);
-    MemBuffer loader(lsize);
+    linker->defineSymbol("length_of_bss", ph.overlap_overhead / 4);
-    memcpy(loader,getLoader(),lsize);
+    defineDecompressorSymbols();
-
-    // patch loader
-    patchPackHeader(loader,lsize);
-    patch_le32(loader,lsize,"ENTR",coff_hdr.a_entry);
-    patchFilter32(loader, lsize, &ft);
-    patch_le32(loader,lsize,"BSSL",ph.overlap_overhead/4);
     assert(bss->vaddr == ((size + 0x1ff) &~ 0x1ff) + (text->vaddr &~ 0x1ff));
-    patch_le32(loader,lsize,"OUTP",text->vaddr &~ 0x1ff);
+    linker->defineSymbol("stack_for_lzma", bss->vaddr + bss->size);
-    patch_le32(loader,lsize,"INPP",data->vaddr);
+    linker->defineSymbol("start_of_uncompressed", text->vaddr - hdrsize);
+    linker->defineSymbol("start_of_compressed", data->vaddr);
+    defineFilterSymbols(&ft);
+
+    // we should not overwrite our decompressor during unpacking
+    // the original coff header (which is put just before the
+    // beginning of the original .text section)
+    assert(text->vaddr > hdrsize + lsize + sizeof(coff_hdr));
 
     // patch coff header #3
     text->vaddr = sizeof(coff_hdr);
@@ -327,13 +342,23 @@ void PackDjgpp2::pack(OutputFile *fo)
     bss->size -= ph.overlap_overhead;
 
     // because of a feature (bug?) in stub.asm we need some padding
-    memcpy(obuf+data->size,"UPX",3);
+    memcpy(obuf+data->size, "UPX", 3);
-    data->size = ALIGN_UP(data->size,4);
+    data->size = ALIGN_UP(data->size, 4);
+
+    linker->defineSymbol("DJ2MAIN1", coff_hdr.a_entry);
+    relocateLoader();
+
+    // prepare loader
+    MemBuffer loader(lsize);
+    memcpy(loader, getLoader(), lsize);
+    patchPackHeader(loader, lsize);
 
     // write coff header, loader and compressed file
-    fo->write(&coff_hdr,sizeof(coff_hdr));
+    fo->write(&coff_hdr, sizeof(coff_hdr));
-    fo->write(loader,lsize);
+    fo->write(loader, lsize);
-    fo->write(obuf,data->size);
+    if (opt->debug.dump_stub_loader)
+        OutputFile::dump(opt->debug.dump_stub_loader, loader, lsize);
+    fo->write(obuf, data->size);
 #if 0
     printf("%-13s: coff hdr   : %8ld bytes\n", getName(), (long) sizeof(coff_hdr));
     printf("%-13s: loader     : %8ld bytes\n", getName(), (long) lsize);
@@ -345,7 +370,7 @@ void PackDjgpp2::pack(OutputFile *fo)
 
     // handle overlay
     // FIXME: only Allegro pakfiles are supported
-    handle_allegropak(fi,fo);
+    handle_allegropak(fi, fo);
 
     // finally check the compression ratio
     if (!checkFinalCompressionRatio(fo))
@@ -361,10 +386,10 @@ int PackDjgpp2::canUnpack()
 {
     if (!readFileHeader())
         return false;
-    if (is_dlm(fi,coff_offset))
+    if (is_dlm(fi, coff_offset))
         throwCantUnpack("can't handle DLM");
     fi->seek(coff_offset, SEEK_SET);
-    return readPackHeader(1024) ? 1 : -1;
+    return readPackHeader(4096) ? 1 : -1;
 }
 
 
@@ -379,19 +404,30 @@ void PackDjgpp2::unpack(OutputFile *fo)
     ibuf.alloc(ph.c_len);
     obuf.allocForUncompression(ph.u_len);
 
-    fi->seek(coff_offset + ph.buf_offset + ph.getPackHeaderSize(),SEEK_SET);
+    fi->seek(coff_offset + ph.buf_offset + ph.getPackHeaderSize(), SEEK_SET);
-    fi->readx(ibuf,ph.c_len);
+    fi->readx(ibuf, ph.c_len);
 
     // decompress
-    decompress(ibuf,obuf);
+    decompress(ibuf, obuf);
+
+    coff_header_t *chdr = (coff_header_t*) obuf.getVoidPtr();
+    text = chdr->sh;
+    data = text + 1;
+
+    const unsigned hdrsize = 20 + 28
+        + sizeof(external_scnhdr_t) * chdr->f_nscns;
+
+    unsigned addvalue;
+    if (ph.version >= 14)
+        addvalue = text->vaddr - hdrsize;
+    else
+        addvalue = text->vaddr &~ 0x1ff; // for old versions
 
     // unfilter
     if (ph.filter)
     {
-        memcpy(&coff_hdr,obuf,sizeof(coff_hdr));
-
         Filter ft(ph.level);
-        ft.init(ph.filter, text->vaddr &~ 0x1ff);
+        ft.init(ph.filter, addvalue);
         ft.cto = (unsigned char) ph.filter_cto;
         if (ph.version < 11)
         {
@@ -402,18 +438,34 @@ void PackDjgpp2::unpack(OutputFile *fo)
         ft.unfilter(obuf, ph.u_len - data->size);
     }
 
-    // fixup for the aligning bug in strip 2.8+
+    if (ph.version < 14)
-    text = ((coff_header_t*) (unsigned char *) obuf)->sh;
-    data = text + 1;
-    text->scnptr &= 0x1ff;
-    data->scnptr = text->scnptr + text->size;
-
-    // write decompressed file
-    if (fo)
     {
-        fo->write(obuf,ph.u_len);
+        // fixup for the aligning bug in strip 2.8+
-        handle_allegropak(fi,fo);
+        text->scnptr &= 0x1ff;
+        data->scnptr = text->scnptr + text->size;
+        // write decompressed file
+        if (fo)
+            fo->write(obuf, ph.u_len);
     }
+    else
+    {
+        // write the header
+        // some padding might be required between the end
+        // of the header and the start of the .text section
+
+        const unsigned padding = text->scnptr - hdrsize;
+        ibuf.clear(0, padding);
+
+        if (fo)
+        {
+            fo->write(obuf, hdrsize);
+            fo->write(ibuf, padding);
+            fo->write(obuf + hdrsize, ph.u_len - hdrsize);
+        }
+    }
+
+    if (fo)
+        handle_allegropak(fi, fo);
 }
 
 

src/p_djgpp2.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -40,9 +40,10 @@ class PackDjgpp2 : public Packer
 
 public:
     PackDjgpp2(InputFile *f);
-    virtual int getVersion() const { return 13; }
+    virtual int getVersion() const { return 14; }
     virtual int getFormat() const { return UPX_F_DJGPP2_COFF; }
     virtual const char *getName() const { return "djgpp2/coff"; }
+    virtual const char *getFullName(const options_t *) const { return "i386-dos32.djgpp2"; }
     virtual const int *getCompressionMethods(int method, int level) const;
     virtual const int *getFilters() const;
 
@@ -59,7 +60,8 @@ protected:
     virtual unsigned findOverlapOverhead(const upx_bytep buf,
                                          unsigned range = 0,
                                          unsigned upper_limit = ~0u) const;
-    virtual int buildLoader(const Filter *ft);
+    virtual void buildLoader(const Filter *ft);
+    virtual Linker* newLinker() const;
 
     long coff_offset;
 

src/p_elf.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -31,71 +31,382 @@
 
 
 /*************************************************************************
-// Some ELF type definitinons
+// N_Elf
 **************************************************************************/
 
+namespace N_Elf {
+
+// integral types
+template <class THalf, class TWord, class TXword, class TAddr, class TOff>
+struct ElfITypes
+{
+    typedef THalf   Half;
+    typedef TWord   Word;
+    typedef TXword  Xword;
+    typedef TAddr   Addr;
+    typedef TOff    Off;
+    typedef THalf   Section;
+    typedef THalf   Versym;
+};
+
+
 // The ELF file header. This appears at the start of every ELF file.
-struct Elf_LE32_Ehdr
+template <class TElfITypes>
+struct Ehdr
 {
+    typedef typename TElfITypes::Half    Half;
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Off     Off;
+
     unsigned char e_ident[16];  /* Magic number and other info */
-    LE16 e_type;                /* Object file type */
+    Half e_type;                /* Object file type */
-    LE16 e_machine;             /* Architecture */
+    Half e_machine;             /* Architecture */
-    LE32 e_version;             /* Object file version */
+    Word e_version;             /* Object file version */
-    LE32 e_entry;               /* Entry point virtual address */
+    Addr e_entry;               /* Entry point virtual address */
-    LE32 e_phoff;               /* Program header table file offset */
+    Off  e_phoff;               /* Program header table file offset */
-    LE32 e_shoff;               /* Section header table file offset */
+    Off  e_shoff;               /* Section header table file offset */
-    LE32 e_flags;               /* Processor-specific flags */
+    Word e_flags;               /* Processor-specific flags */
-    LE16 e_ehsize;              /* ELF header size in bytes */
+    Half e_ehsize;              /* ELF header size in bytes */
-    LE16 e_phentsize;           /* Program header table entry size */
+    Half e_phentsize;           /* Program header table entry size */
-    LE16 e_phnum;               /* Program header table entry count */
+    Half e_phnum;               /* Program header table entry count */
-    LE16 e_shentsize;           /* Section header table entry size */
+    Half e_shentsize;           /* Section header table entry size */
-    LE16 e_shnum;               /* Section header table entry count */
+    Half e_shnum;               /* Section header table entry count */
-    LE16 e_shstrndx;            /* Section header string table index */
+    Half e_shstrndx;            /* Section header string table index */
+
+#   define WANT_EHDR_ENUM 1
+#   include "p_elf_enum.h"
 }
 __attribute_packed;
 
 
-// Program segment header.
+template <class TElfITypes>
-struct Elf_LE32_Phdr
+struct Dyn
 {
-    LE32 p_type;                /* Segment type */
+    typedef typename TElfITypes::Xword   Xword;
-    LE32 p_offset;              /* Segment file offset */
+    typedef typename TElfITypes::Addr    Addr;
-    LE32 p_vaddr;               /* Segment virtual address */
-    LE32 p_paddr;               /* Segment physical address */
-    LE32 p_filesz;              /* Segment size in file */
-    LE32 p_memsz;               /* Segment size in memory */
-    LE32 p_flags;               /* Segment flags */
-    LE32 p_align;               /* Segment alignment */
 
-    // Values for p_type
+    Xword d_tag;
-    enum {
+    Addr d_val;
-        PT_LOAD     = 1,    /* Loadable program segment */
-        PT_DYNAMIC  = 2,    /* Dynamic linking information */
-        PT_PHDR     = 6     /* Entry for header table itself */
-    };
 
-    // Values for p_flags
+#   define WANT_DYN_ENUM 1
-    enum { PF_X = (1 << 0) };   /* Segment is executable */
+#   include "p_elf_enum.h"
-    enum { PF_W = (1 << 1) };   /* Segment is writable */
-    enum { PF_R = (1 << 2) };   /* Segment is readable */
 }
 __attribute_packed;
 
 
-struct Elf_LE32_Dyn
+template <class TElfITypes>
+struct External_Note
 {
-    LE32 d_tag;
+    typedef typename TElfITypes::Word   Word;
-    LE32 d_val;
 
-    enum {  // tags
+    Word xn_namesz;  // includes terminating '\0'
-        DT_NULL     =  0,   /* End flag */
+    Word xn_datasz;
-        DT_NEEDED   =  1,   /* Name of needed library */
+    Word xn_type;
-        DT_STRTAB   =  5,   /* String table */
+    //char xn_name[N];  // terminate with '\0'
-        DT_STRSZ    = 10    /* Sizeof string table */
+    //char xn_data[M];  // aligned to 0 mod 4
-    };
 }
 __attribute_packed;
 
+
+} // namespace N_Elf
+
+
+/*************************************************************************
+// N_Elf32
+**************************************************************************/
+
+namespace N_Elf32 {
+
+template <class TElfITypes>
+struct Phdr
+{
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Off     Off;
+
+    Word p_type;                /* Segment type */
+    Off  p_offset;              /* Segment file offset */
+    Addr p_vaddr;               /* Segment virtual address */
+    Addr p_paddr;               /* Segment physical address */
+    Word p_filesz;              /* Segment size in file */
+    Word p_memsz;               /* Segment size in memory */
+    Word p_flags;               /* Segment flags */
+    Word p_align;               /* Segment alignment */
+
+#   define WANT_PHDR_ENUM 1
+#   include "p_elf_enum.h"
+}
+__attribute_packed;
+
+
+template <class TElfITypes>
+struct Shdr
+{
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Off     Off;
+
+    Word sh_name;               /* Section name (string tbl index) */
+    Word sh_type;               /* Section type */
+    Word sh_flags;              /* Section flags */
+    Addr sh_addr;               /* Section virtual addr at execution */
+    Off  sh_offset;             /* Section file offset */
+    Word sh_size;               /* Section size in bytes */
+    Word sh_link;               /* Link to another section */
+    Word sh_info;               /* Additional section information */
+    Word sh_addralign;          /* Section alignment */
+    Word sh_entsize;            /* Entry size if section holds table */
+
+#   define WANT_SHDR_ENUM 1
+#   include "p_elf_enum.h"
+}
+__attribute_packed;
+
+
+template <class TElfITypes>
+struct Sym
+{
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Section Section;
+
+    Word st_name;               /* symbol name (index into string table) */
+    Addr st_value;              /* symbol value */
+    Word st_size;               /* symbol size */
+    unsigned char st_info;      /* symbol type and binding */
+    unsigned char st_other;     /* symbol visibility */
+    Section st_shndx;           /* section index */
+
+#   define WANT_SYM_ENUM 1
+#   include "p_elf_enum.h"
+
+    static unsigned int  get_st_bind(unsigned x) { return 0xf & (x>>4); }
+    static unsigned int  get_st_type(unsigned x) { return 0xf &  x    ; }
+    static unsigned char make_st_info(unsigned bind, unsigned type) { return (bind<<4) + (0xf & type); }
+}
+__attribute_packed;
+
+
+} // namespace N_Elf32
+
+
+/*************************************************************************
+// N_Elf64
+**************************************************************************/
+
+namespace N_Elf64 {
+
+template <class TElfITypes>
+struct Phdr
+{
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Xword   Xword;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Off     Off;
+
+    Word  p_type;               /* Segment type */
+    Word  p_flags;              /* Segment flags */
+    Off   p_offset;             /* Segment file offset */
+    Addr  p_vaddr;              /* Segment virtual address */
+    Addr  p_paddr;              /* Segment physical address */
+    Xword p_filesz;             /* Segment size in file */
+    Xword p_memsz;              /* Segment size in memory */
+    Xword p_align;              /* Segment alignment */
+
+#   define WANT_PHDR_ENUM 1
+#   include "p_elf_enum.h"
+}
+__attribute_packed;
+
+
+template <class TElfITypes>
+struct Shdr
+{
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Xword   Xword;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Off     Off;
+
+    Word  sh_name;              /* Section name (string tbl index) */
+    Word  sh_type;              /* Section type */
+    Xword sh_flags;             /* Section flags */
+    Addr  sh_addr;              /* Section virtual addr at execution */
+    Off   sh_offset;            /* Section file offset */
+    Xword sh_size;              /* Section size in bytes */
+    Word  sh_link;              /* Link to another section */
+    Word  sh_info;              /* Additional section information */
+    Xword sh_addralign;         /* Section alignment */
+    Xword sh_entsize;           /* Entry size if section holds table */
+
+#   define WANT_SHDR_ENUM 1
+#   include "p_elf_enum.h"
+}
+__attribute_packed;
+
+
+template <class TElfITypes>
+struct Sym
+{
+    typedef typename TElfITypes::Word    Word;
+    typedef typename TElfITypes::Xword   Xword;
+    typedef typename TElfITypes::Addr    Addr;
+    typedef typename TElfITypes::Section Section;
+
+    Word st_name;               /* symbol name (index into string table) */
+    unsigned char st_info;      /* symbol type and binding */
+    unsigned char st_other;     /* symbol visibility */
+    Section st_shndx;           /* section index */
+    Addr st_value;              /* symbol value */
+    Xword st_size;              /* symbol size */
+
+#   define WANT_SYM_ENUM 1
+#   include "p_elf_enum.h"
+
+    static unsigned int  get_st_bind(unsigned x) { return 0xf & (x>>4); }
+    static unsigned int  get_st_type(unsigned x) { return 0xf &  x    ; }
+    static unsigned char make_st_info(unsigned bind, unsigned type) { return (bind<<4) + (0xf & type); }
+}
+__attribute_packed;
+
+
+} // namespace N_Elf64
+
+
+/*************************************************************************
+// aggregate types into an ElfClass
+**************************************************************************/
+
+namespace N_Elf {
+
+template <class TP>
+struct ElfClass_32
+{
+    typedef TP BeLePolicy;
+
+    // integral types
+    typedef typename TP::U16 U16;
+    typedef typename TP::U32 U32;
+    typedef typename TP::U64 U64;
+    typedef N_Elf::ElfITypes<U16, U32, U32, U32, U32> ElfITypes;
+
+    // ELF types
+    typedef N_Elf  ::Ehdr<ElfITypes> Ehdr;
+    typedef N_Elf32::Phdr<ElfITypes> Phdr;
+    typedef N_Elf32::Shdr<ElfITypes> Shdr;
+    typedef N_Elf  ::Dyn <ElfITypes> Dyn;
+    typedef N_Elf32::Sym <ElfITypes> Sym;
+    typedef N_Elf  ::External_Note<ElfITypes> External_Note;
+
+    static void compileTimeAssertions() {
+        BeLePolicy::compileTimeAssertions();
+        COMPILE_TIME_ASSERT(sizeof(Ehdr) == 52)
+        COMPILE_TIME_ASSERT(sizeof(Phdr) == 32)
+        COMPILE_TIME_ASSERT(sizeof(Shdr) == 40)
+        COMPILE_TIME_ASSERT(sizeof(Dyn)  ==  8)
+        COMPILE_TIME_ASSERT(sizeof(Sym)  == 16)
+        COMPILE_TIME_ASSERT_ALIGNED1(Ehdr)
+        COMPILE_TIME_ASSERT_ALIGNED1(Phdr)
+        COMPILE_TIME_ASSERT_ALIGNED1(Shdr)
+        COMPILE_TIME_ASSERT_ALIGNED1(Dyn)
+        COMPILE_TIME_ASSERT_ALIGNED1(Sym)
+    }
+};
+
+
+template <class TP>
+struct ElfClass_64
+{
+    typedef TP BeLePolicy;
+
+    // integral types
+    typedef typename TP::U16 U16;
+    typedef typename TP::U32 U32;
+    typedef typename TP::U64 U64;
+    typedef N_Elf::ElfITypes<U16, U32, U64, U64, U64> ElfITypes;
+
+    // ELF types
+    typedef N_Elf  ::Ehdr<ElfITypes> Ehdr;
+    typedef N_Elf64::Phdr<ElfITypes> Phdr;
+    typedef N_Elf64::Shdr<ElfITypes> Shdr;
+    typedef N_Elf  ::Dyn <ElfITypes> Dyn;
+    typedef N_Elf64::Sym <ElfITypes> Sym;
+    typedef N_Elf  ::External_Note<ElfITypes> External_Note;
+
+    static void compileTimeAssertions() {
+        BeLePolicy::compileTimeAssertions();
+        COMPILE_TIME_ASSERT(sizeof(Ehdr) == 64)
+        COMPILE_TIME_ASSERT(sizeof(Phdr) == 56)
+        COMPILE_TIME_ASSERT(sizeof(Shdr) == 64)
+        COMPILE_TIME_ASSERT(sizeof(Dyn)  == 16)
+        COMPILE_TIME_ASSERT(sizeof(Sym)  == 24)
+        COMPILE_TIME_ASSERT_ALIGNED1(Ehdr)
+        COMPILE_TIME_ASSERT_ALIGNED1(Phdr)
+        COMPILE_TIME_ASSERT_ALIGNED1(Shdr)
+        COMPILE_TIME_ASSERT_ALIGNED1(Dyn)
+        COMPILE_TIME_ASSERT_ALIGNED1(Sym)
+    }
+};
+
+
+} // namespace N_Elf
+
+
+typedef N_Elf::ElfClass_32<N_BELE_CTP::HostPolicy> ElfClass_Host32;
+typedef N_Elf::ElfClass_64<N_BELE_CTP::HostPolicy> ElfClass_Host64;
+typedef N_Elf::ElfClass_32<N_BELE_CTP::BEPolicy>   ElfClass_BE32;
+typedef N_Elf::ElfClass_64<N_BELE_CTP::BEPolicy>   ElfClass_BE64;
+typedef N_Elf::ElfClass_32<N_BELE_CTP::LEPolicy>   ElfClass_LE32;
+typedef N_Elf::ElfClass_64<N_BELE_CTP::LEPolicy>   ElfClass_LE64;
+
+
+/*************************************************************************
+// shortcuts
+**************************************************************************/
+
+typedef ElfClass_Host32::Ehdr Elf32_Ehdr;
+typedef ElfClass_Host32::Phdr Elf32_Phdr;
+typedef ElfClass_Host32::Shdr Elf32_Shdr;
+typedef ElfClass_Host32::Dyn  Elf32_Dyn;
+typedef ElfClass_Host32::Sym  Elf32_Sym;
+typedef ElfClass_Host32::External_Note  Elf32_External_Note;
+
+typedef ElfClass_Host64::Ehdr Elf64_Ehdr;
+typedef ElfClass_Host64::Phdr Elf64_Phdr;
+typedef ElfClass_Host64::Shdr Elf64_Shdr;
+typedef ElfClass_Host64::Dyn  Elf64_Dyn;
+typedef ElfClass_Host64::Sym  Elf64_Sym;
+typedef ElfClass_Host64::External_Note  Elf64_External_Note;
+
+typedef ElfClass_BE32::Ehdr   Elf_BE32_Ehdr;
+typedef ElfClass_BE32::Phdr   Elf_BE32_Phdr;
+typedef ElfClass_BE32::Shdr   Elf_BE32_Shdr;
+typedef ElfClass_BE32::Dyn    Elf_BE32_Dyn;
+typedef ElfClass_BE32::Sym    Elf_BE32_Sym;
+typedef ElfClass_BE32::External_Note    Elf_BE32_External_Note;
+
+typedef ElfClass_BE64::Ehdr   Elf_BE64_Ehdr;
+typedef ElfClass_BE64::Phdr   Elf_BE64_Phdr;
+typedef ElfClass_BE64::Shdr   Elf_BE64_Shdr;
+typedef ElfClass_BE64::Dyn    Elf_BE64_Dyn;
+typedef ElfClass_BE64::Sym    Elf_BE64_Sym;
+typedef ElfClass_BE64::External_Note    Elf_BE64_External_Note;
+
+typedef ElfClass_LE32::Ehdr   Elf_LE32_Ehdr;
+typedef ElfClass_LE32::Phdr   Elf_LE32_Phdr;
+typedef ElfClass_LE32::Shdr   Elf_LE32_Shdr;
+typedef ElfClass_LE32::Dyn    Elf_LE32_Dyn;
+typedef ElfClass_LE32::Sym    Elf_LE32_Sym;
+typedef ElfClass_LE32::External_Note    Elf_LE32_External_Note;
+
+typedef ElfClass_LE64::Ehdr   Elf_LE64_Ehdr;
+typedef ElfClass_LE64::Phdr   Elf_LE64_Phdr;
+typedef ElfClass_LE64::Shdr   Elf_LE64_Shdr;
+typedef ElfClass_LE64::Dyn    Elf_LE64_Dyn;
+typedef ElfClass_LE64::Sym    Elf_LE64_Sym;
+typedef ElfClass_LE64::External_Note    Elf_LE64_External_Note;
+
+
 #endif /* already included */
 
 

src/p_elf_enum.h

@@ -0,0 +1,185 @@
+/* p_elf_enum.h --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer   Laszlo Molnar
+   markus@oberhumer.com      ml1050@users.sourceforge.net
+ */
+
+
+/*************************************************************************
+// Use the preprocessor to work around
+//   - that the types embedding these enums have to be PODs, and
+//     deriving from an empty base class (which is the usual C++ way
+//     of "importing" enums) does not yield a POD any more
+//   - that older compilers do not correctly perform EBCO
+**************************************************************************/
+
+#ifdef WANT_EHDR_ENUM
+#undef WANT_EHDR_ENUM
+    enum { // e_ident[]
+        EI_CLASS      = 4,
+        EI_DATA       = 5,      /* Data encoding */
+        EI_VERSION    = 6,
+        EI_OSABI      = 7,
+        EI_ABIVERSION = 8
+    };
+    enum { // e_ident[EI_CLASS]
+        ELFCLASS32 = 1,         /* 32-bit objects */
+        ELFCLASS64 = 2          /* 64-bit objects */
+    };
+    enum { // e_ident[EI_DATA]
+        ELFDATA2LSB = 1,        /* 2's complement, little endian */
+        ELFDATA2MSB = 2         /* 2's complement, big endian */
+    };
+    enum { // e_ident[EI_OSABI]
+        ELFOSABI_NONE    = 0,      // == ELFOSABI_SYSV
+        ELFOSABI_NETBSD  = 2,
+        ELFOSABI_LINUX   = 3,
+        ELFOSABI_FREEBSD = 9,
+        ELFOSABI_OPENBSD = 12,
+        ELFOSABI_ARM     = 97
+    };
+    enum { // e_type
+        ET_NONE = 0,            /* No file type */
+        ET_REL  = 1,            /* Relocatable file */
+        ET_EXEC = 2,            /* Executable file */
+        ET_DYN  = 3,            /* Shared object file */
+        ET_CORE = 4             /* Core file */
+    };
+    enum { // e_machine
+        EM_386    = 3,
+        EM_PPC    = 20,
+        EM_PPC64  = 21,
+        EM_ARM    = 40,
+        EM_X86_64 = 62
+    };
+    enum { // e_version
+        EV_CURRENT = 1
+    };
+#endif
+
+
+#ifdef WANT_PHDR_ENUM
+#undef WANT_PHDR_ENUM
+    enum { // p_type
+        PT_LOAD    = 1,         /* Loadable program segment */
+        PT_DYNAMIC = 2,         /* Dynamic linking information */
+        PT_INTERP  = 3,         /* Name of program interpreter */
+        PT_NOTE    = 4,         /* Auxiliary information (esp. OpenBSD) */
+        PT_PHDR    = 6          /* Entry for header table itself */
+    };
+
+    enum { // p_flags
+        PF_X = 1,               /* Segment is executable */
+        PF_W = 2,               /* Segment is writable */
+        PF_R = 4                /* Segment is readable */
+    };
+#endif
+
+
+#ifdef WANT_SHDR_ENUM
+#undef WANT_SHDR_ENUM
+    enum { // sh_type
+        SHT_NULL = 0,           /* Section header table entry unused */
+        SHT_PROGBITS = 1,       /* Program data */
+        SHT_SYMTAB = 2,         /* Symbol table */
+        SHT_STRTAB = 3,         /* String table */
+        SHT_RELA = 4,           /* Relocation entries with addends */
+        SHT_HASH = 5,           /* Symbol hash table */
+        SHT_DYNAMIC = 6,        /* Dynamic linking information */
+        SHT_NOTE = 7,           /* Notes */
+        SHT_NOBITS = 8,         /* Program space with no data (bss) */
+        SHT_REL = 9,            /* Relocation entries, no addends */
+        SHT_SHLIB = 10,         /* Reserved */
+        SHT_DYNSYM = 11,        /* Dynamic linker symbol table */
+            /* 12, 13  hole */
+        SHT_INIT_ARRAY = 14,    /* Array of constructors */
+        SHT_FINI_ARRAY = 15,    /* Array of destructors */
+        SHT_PREINIT_ARRAY = 16, /* Array of pre-constructors */
+        SHT_GROUP = 17,         /* Section group */
+        SHT_SYMTAB_SHNDX = 18,  /* Extended section indeces */
+        SHT_GNU_LIBLIST = 0x6ffffff7    /* Prelink library list */
+    };
+
+    enum { // sh_flags
+        SHF_WRITE      = (1 << 0),  /* Writable */
+        SHF_ALLOC      = (1 << 1),  /* Occupies memory during execution */
+        SHF_EXECINSTR  = (1 << 2),  /* Executable */
+        SHF_MERGE      = (1 << 4),  /* Might be merged */
+        SHF_STRINGS    = (1 << 5),  /* Contains nul-terminated strings */
+        SHF_INFO_LINK  = (1 << 6),  /* 'sh_info' contains SHT index */
+        SHF_LINK_ORDER = (1 << 7)   /* Preserve order after combining */
+    };
+#endif
+
+
+#ifdef WANT_DYN_ENUM
+#undef WANT_DYN_ENUM
+    enum { // d_tag
+        DT_NULL     =  0,       /* End flag */
+        DT_NEEDED   =  1,       /* Name of needed library */
+        DT_HASH     =  4,       /* Hash table of symbol names */
+        DT_STRTAB   =  5,       /* String table */
+        DT_SYMTAB   =  6,       /* Symbol table */
+        DT_STRSZ    = 10        /* Sizeof string table */
+    };
+#endif
+
+
+#ifdef WANT_SYM_ENUM
+#undef WANT_SYM_ENUM
+    enum { // st_bind (high 4 bits of st_info)
+        STB_LOCAL   =   0,      /* Local symbol */
+        STB_GLOBAL  =   1,      /* Global symbol */
+        STB_WEAK    =   2       /* Weak symbol */
+    };
+
+    enum { // st_type (low 4 bits of st_info)
+        STT_NOTYPE  =   0,      /* Symbol type is unspecified */
+        STT_OBJECT  =   1,      /* Symbol is a data object */
+        STT_FUNC    =   2,      /* Symbol is a code object */
+        STT_SECTION =   3,      /* Symbol associated with a section */
+        STT_FILE    =   4,      /* Symbol's name is file name */
+        STT_COMMON  =   5,      /* Symbol is a common data object */
+        STT_TLS     =   6       /* Symbol is thread-local data object*/
+    };
+
+    enum { // st_other (visibility)
+        STV_DEFAULT  =  0,      /* Default symbol visibility rules */
+        STV_INTERNAL =  1,      /* Processor specific hidden class */
+        STV_HIDDEN   =  2,      /* Sym unavailable in other modules */
+        STV_PROTECTED=  3       /* Not preemptible, not exported */
+    };
+
+    enum { // st_shndx
+        SHN_UNDEF   =   0,      /* Undefined section */
+        SHN_ABS     =   0xfff1, /* Associated symbol is absolute */
+        SHN_COMMON  =   0xfff2  /* Associated symbol is common */
+    };
+#endif
+
+
+/*
+vi:ts=4:et
+*/
+

src/p_elks.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -94,13 +94,12 @@ void PackElks8086::readKernel()
 //
 **************************************************************************/
 
-int PackElks8086::buildLoader(const Filter *ft)
+void PackElks8086::buildLoader(const Filter *ft)
 {
     // prepare loader
     initLoader(nrv_loader, sizeof(nrv_loader));
     // FIXME
     UNUSED(ft);
-    return getLoaderSize();
 }
 
 
@@ -113,7 +112,7 @@ void PackElks8086::pack(OutputFile *fo)
     ft.buf_len = ph.u_len;
     ft.addvalue = kernel_entry;
     // compress
-    compressWithFilters(&ft, overlap_range);
+    compressWithFilters(&ft, overlap_range, NULL_cconf);
 
     const unsigned lsize = getLoaderSize();
     MemBuffer loader(lsize);
@@ -122,10 +121,11 @@ void PackElks8086::pack(OutputFile *fo)
     patchPackHeader(loader, lsize);
 #if 0
     // FIXME
-    patchFilter32(loader, lsize, &ft);
+    defineFilterSymbols(&ft);
-    patch_le32(loader, lsize, "ESI1", zimage_offset + lsize);
+    defineDecompressorSymbols();
-    patch_le32(loader, lsize, "KEIP", kernel_entry);
+    //patch_le32(loader, lsize, "ESI1", zimage_offset + lsize);
-    patch_le32(loader, lsize, "STAK", stack_during_uncompression);
+    //patch_le32(loader, lsize, "KEIP", kernel_entry);
+    //patch_le32(loader, lsize, "STAK", stack_during_uncompression);
 #endif
 
     boot_sect_t * const bs = (boot_sect_t *) ((unsigned char *) setup_buf);

src/p_exe.cpp

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -31,9 +31,10 @@
 #include "filter.h"
 #include "packer.h"
 #include "p_exe.h"
+#include "linker.h"
 
 static const
-#include "stub/l_exe.h"
+#include "stub/i086-dos16.exe.h"
 
 #define RSFCRI          4096    // Reserved Space For Compressed Relocation Info
 #define MAXMATCH        0x2000
@@ -49,8 +50,15 @@ static const
 PackExe::PackExe(InputFile *f) :
     super(f)
 {
+    bele = &N_BELE_RTP::le_policy;
     COMPILE_TIME_ASSERT(sizeof(exe_header_t) == 32);
     ih_exesize = ih_imagesize = ih_overlay = 0;
+    stack_for_lzma = 0;
+    use_clear_dirty_stack = false;
+
+    // disable lzma for "--brute" unless explicitly given "--lzma"
+    if (opt->all_methods_use_lzma && !opt->method_lzma_seen)
+        opt->all_methods_use_lzma = false;
 }
 
 
@@ -72,7 +80,7 @@ int PackExe::fillExeHeader(struct exe_header_t *eh) const
 #define oh  (*eh)
     // fill new exe header
     int flag = 0;
-    if (!opt->dos.no_reloc)
+    if (!opt->dos_exe.no_reloc && !M_IS_LZMA(ph.method))
         flag |= USEJUMP;
     if (ih.relocs == 0)
         flag |= NORELOC;
@@ -80,9 +88,17 @@ int PackExe::fillExeHeader(struct exe_header_t *eh) const
     memset(&oh,0,sizeof(oh));
     oh.ident = 'M' + 'Z' * 256;
     oh.headsize16 = 2;
-    oh.ip = 0;
 
-    oh.sp = ih.sp > 0x200 ? ih.sp : 0x200;
+    unsigned minsp = 0x200;
+    if (M_IS_LZMA(ph.method))
+        minsp = stack_for_lzma;
+    minsp = ALIGN_UP(minsp, 16u);
+    assert(minsp < 0xff00);
+    if (oh.sp > minsp)
+        minsp = oh.sp;
+    if (minsp < 0xff00 - 2)
+        minsp = ALIGN_UP(minsp, 2u);
+    oh.sp = minsp;
 
     unsigned destpara = (ph.u_len + ph.overlap_overhead - ph.c_len + 31) / 16;
     oh.ss = ph.c_len/16 + destpara;
@@ -94,63 +110,14 @@ int PackExe::fillExeHeader(struct exe_header_t *eh) const
 
     if (oh.ss != ih.ss)
         flag |= SS;
-    if (oh.sp != ih.sp)
+    if (oh.sp != ih.sp || M_IS_LZMA(ph.method))
         flag |= SP;
     return flag;
 #undef oh
 }
 
-
+void PackExe::addLoaderEpilogue(int flag)
-int PackExe::buildLoader(const Filter *)
 {
-    struct exe_header_t tmp_oh;
-    int flag = fillExeHeader(&tmp_oh);
-
-    // prepare loader
-    initLoader(nrv_loader,sizeof(nrv_loader));
-    addLoader("EXEENTRY",
-              relocsize ? "EXERELPU" : "",
-              "EXEMAIN4""+G5DXXXX""UPX1HEAD""EXECUTPO",
-              NULL
-             );
-    if (ph.method == M_NRV2B_8)
-        addLoader("NRV2B16S",               // decompressor
-                  ph.u_len > DI_LIMIT ? "N2B64K01" : "",
-                  "NRV2BEX1",
-                  opt->cpu == opt->CPU_8086 ? "N2BX8601" : "N2B28601",
-                  "NRV2BEX2",
-                  opt->cpu == opt->CPU_8086 ? "N2BX8602" : "N2B28602",
-                  "NRV2BEX3",
-                  ph.c_len > 0xffff ? "N2B64K02" : "",
-                  "NRV2BEX9""NRV2B16E",
-                  NULL
-                 );
-    else if (ph.method == M_NRV2D_8)
-        addLoader("NRV2D16S",
-                  ph.u_len > DI_LIMIT ? "N2D64K01" : "",
-                  "NRV2DEX1",
-                  opt->cpu == opt->CPU_8086 ? "N2DX8601" : "N2D28601",
-                  "NRV2DEX2",
-                  opt->cpu == opt->CPU_8086 ? "N2DX8602" : "N2D28602",
-                  "NRV2DEX3",
-                  ph.c_len > 0xffff ? "N2D64K02" : "",
-                  "NRV2DEX9""NRV2D16E",
-                  NULL
-                 );
-    else if (ph.method == M_NRV2E_8)
-        addLoader("NRV2E16S",
-                  ph.u_len > DI_LIMIT ? "N2E64K01" : "",
-                  "NRV2EEX1",
-                  opt->cpu == opt->CPU_8086 ? "N2EX8601" : "N2E28601",
-                  "NRV2EEX2",
-                  opt->cpu == opt->CPU_8086 ? "N2EX8602" : "N2E28602",
-                  "NRV2EEX3",
-                  ph.c_len > 0xffff ? "N2E64K02" : "",
-                  "NRV2EEX9""NRV2E16E",
-                  NULL
-                 );
-    else
-        throwInternalError("unknown compression method");
     addLoader("EXEMAIN5", NULL);
     if (relocsize)
         addLoader(ph.u_len <= DI_LIMIT || (ph.u_len & 0x7fff) >= relocsize ? "EXENOADJ" : "EXEADJUS",
@@ -162,6 +129,7 @@ int PackExe::buildLoader(const Filter *)
                   NULL
                  );
     addLoader("EXEMAIN8",
+              device_driver ? "DEVICEEND" : "",
               (flag & SS) ? "EXESTACK" : "",
               (flag & SP) ? "EXESTASP" : "",
               (flag & USEJUMP) ? "EXEJUMPF" : "",
@@ -172,7 +140,132 @@ int PackExe::buildLoader(const Filter *)
                   "EXERETIP",
                   NULL
                  );
-    return getLoaderSize();
+
+    linker->defineSymbol("original_cs", ih.cs);
+    linker->defineSymbol("original_ip", ih.ip);
+    linker->defineSymbol("original_sp", ih.sp);
+    linker->defineSymbol("original_ss", ih.ss);
+    linker->defineSymbol("reloc_size",
+                         (ph.u_len <= DI_LIMIT || (ph.u_len & 0x7fff)
+                          >= relocsize ? 0 : MAXRELOCS) - relocsize);
+}
+
+void PackExe::buildLoader(const Filter *)
+{
+    // get flag
+    exe_header_t dummy_oh;
+    int flag = fillExeHeader(&dummy_oh);
+
+    initLoader(stub_i086_dos16_exe, sizeof(stub_i086_dos16_exe));
+
+    if (M_IS_LZMA(ph.method))
+    {
+        addLoader("LZMA_DEC00",
+                  opt->small ? "LZMA_DEC10" : "LZMA_DEC20",
+                  "LZMA_DEC30",
+                  use_clear_dirty_stack ? "LZMA_DEC31" : "",
+                  "LZMA_DEC32",
+                  ph.u_len > 0xffff ? "LZMA_DEC33" : "",
+                  NULL
+                 );
+
+        addLoaderEpilogue(flag);
+        defineDecompressorSymbols();
+        const unsigned lsize0 = getLoaderSize();
+
+        // Lzma decompression code starts at ss:0x10, and its size is
+        // lsize bytes. It also needs getDecompressorWrkmemSize() bytes
+        // during uncompression. It also uses some stack, so 0x100
+        // more bytes are allocated
+        stack_for_lzma = 0x10 + lsize0 + getDecompressorWrkmemSize() + 0x100;
+        stack_for_lzma = ALIGN_UP(stack_for_lzma, 16u);
+
+        unsigned clear_dirty_stack_low = 0x10 + lsize0;
+        clear_dirty_stack_low = ALIGN_UP(clear_dirty_stack_low, 2u);
+        if (use_clear_dirty_stack)
+            linker->defineSymbol("clear_dirty_stack_low", clear_dirty_stack_low);
+
+        relocateLoader();
+        const unsigned lsize = getLoaderSize();
+        assert(lsize0 == lsize);
+        MemBuffer loader(lsize);
+        memcpy(loader, getLoader(), lsize);
+
+        MemBuffer compressed_lzma;
+        compressed_lzma.allocForCompression(lsize);
+        unsigned c_len_lzma = MemBuffer::getSizeForCompression(lsize);
+        int r = upx_compress(loader, lsize, compressed_lzma, &c_len_lzma,
+                             NULL, M_NRV2B_LE16, 9, NULL, NULL);
+        assert(r == UPX_E_OK); assert(c_len_lzma < lsize);
+
+        info("lzma+relocator code compressed: %u -> %u", lsize, c_len_lzma);
+        // reinit the loader
+        initLoader(stub_i086_dos16_exe, sizeof(stub_i086_dos16_exe));
+        // prepare loader
+        if (device_driver)
+            addLoader("DEVICEENTRY,LZMADEVICE,DEVICEENTRY2", NULL);
+
+        linker->addSection("COMPRESSED_LZMA", compressed_lzma, c_len_lzma, 0);
+        addLoader("LZMAENTRY,NRV2B160,NRVDDONE,NRVDECO1,NRVGTD00,NRVDECO2",
+                  NULL);
+
+    }
+    else if (device_driver)
+        addLoader("DEVICEENTRY,DEVICEENTRY2", NULL);
+
+    addLoader("EXEENTRY",
+              M_IS_LZMA(ph.method) && device_driver ? "LONGSUB" : "SHORTSUB",
+              "JNCDOCOPY",
+              relocsize ? "EXERELPU" : "",
+              "EXEMAIN4",
+              M_IS_LZMA(ph.method) ? "" : "EXEMAIN4B",
+              "EXEMAIN4C",
+              M_IS_LZMA(ph.method) ? "COMPRESSED_LZMA_START,COMPRESSED_LZMA" : "",
+              "+G5DXXXX,UPX1HEAD,EXECUTPO",
+              NULL
+             );
+    if (ph.method == M_NRV2B_8)
+        addLoader("NRV2B16S",               // decompressor
+                  ph.u_len > DI_LIMIT ? "N2B64K01" : "",
+                  "NRV2BEX1",
+                  opt->cpu == opt->CPU_8086 ? "N2BX8601" : "N2B28601",
+                  "NRV2BEX2",
+                  opt->cpu == opt->CPU_8086 ? "N2BX8602" : "N2B28602",
+                  "NRV2BEX3",
+                  ph.c_len > 0xffff ? "N2B64K02" : "",
+                  "NRV2BEX9",
+                  NULL
+                 );
+    else if (ph.method == M_NRV2D_8)
+        addLoader("NRV2D16S",
+                  ph.u_len > DI_LIMIT ? "N2D64K01" : "",
+                  "NRV2DEX1",
+                  opt->cpu == opt->CPU_8086 ? "N2DX8601" : "N2D28601",
+                  "NRV2DEX2",
+                  opt->cpu == opt->CPU_8086 ? "N2DX8602" : "N2D28602",
+                  "NRV2DEX3",
+                  ph.c_len > 0xffff ? "N2D64K02" : "",
+                  "NRV2DEX9",
+                  NULL
+                 );
+    else if (ph.method == M_NRV2E_8)
+        addLoader("NRV2E16S",
+                  ph.u_len > DI_LIMIT ? "N2E64K01" : "",
+                  "NRV2EEX1",
+                  opt->cpu == opt->CPU_8086 ? "N2EX8601" : "N2E28601",
+                  "NRV2EEX2",
+                  opt->cpu == opt->CPU_8086 ? "N2EX8602" : "N2E28602",
+                  "NRV2EEX3",
+                  ph.c_len > 0xffff ? "N2E64K02" : "",
+                  "NRV2EEX9",
+                  NULL
+                 );
+    else if M_IS_LZMA(ph.method)
+        return;
+    else
+        throwInternalError("unknown compression method");
+
+    addLoaderEpilogue(flag);
 }
 
 
@@ -213,7 +306,7 @@ bool PackExe::canPack()
     fi->readx(&offs,sizeof (offs));
     if (ih.relocoffs >= 0x40 && offs)
     {
-        if (opt->dos.force_stub)
+        if (opt->dos_exe.force_stub)
             opt->overlay = opt->COPY_OVERLAY;
         else
             throwCantPack("can't pack new-exe");
@@ -231,6 +324,9 @@ unsigned optimize_relocs(upx_byte *b, const unsigned size,
                          const upx_byte *relocs, const unsigned nrelocs,
                          upx_byte *crel, bool *has_9a)
 {
+    if (opt->exact)
+        throwCantPackExact();
+
     upx_byte * const crel_save = crel;
     unsigned i;
     unsigned seg_high = 0;
@@ -293,7 +389,9 @@ unsigned optimize_relocs(upx_byte *b, const unsigned size,
         {
             addr = get_le32(relocs+4*i);
             //printf ("%x\n",es*16+di);
-            if (addr - es*16 > 0xfffe)
+            if ((addr - es*16 > 0xfffe)
+                || (i == nrelocs - 1 && addr - es * 16 > 0xff00)
+               )
             {
                 // segment change
                 t = 1+(0xffff-di)/254;
@@ -303,7 +401,7 @@ unsigned optimize_relocs(upx_byte *b, const unsigned size,
                 break;
             }
             unsigned offs = addr - es*16;
-            if (offs >= 3 && b[es*16 + offs-3] == 0x9a)
+            if (offs >= 3 && b[es*16 + offs-3] == 0x9a && offs > di + 3)
             {
                 for (t = di; t < offs-3; t++)
                     if (b[es*16+t] == 0x9a && get_le16(b+es*16+t+3) <= seg_high)
@@ -338,7 +436,7 @@ unsigned optimize_relocs(upx_byte *b, const unsigned size,
     set_le16 (crel_save+2,seg_high);
 
     //OutputFile::dump("x.rel", crel_save, crel - crel_save);
-    return crel - crel_save;
+    return (unsigned) (crel - crel_save);
 }
 
 
@@ -365,6 +463,8 @@ void PackExe::pack(OutputFile *fo)
 
     checkAlreadyPacked(ibuf, UPX_MIN(ih_imagesize, 127u));
 
+    device_driver = get_le32(ibuf) == 0xffffffffu;
+
     // relocations
     has_9a = false;
     upx_byte *w = ibuf + ih_imagesize;
@@ -403,13 +503,18 @@ void PackExe::pack(OutputFile *fo)
     ph.u_len = ih_imagesize + relocsize;
     // prepare filter
     Filter ft(ph.level);
-    // compress
+    // compress (max_match = 8192)
-    compressWithFilters(&ft, 32, 0, NULL, 0, MAXMATCH);
+    upx_compress_config_t cconf; cconf.reset();
-    if (ph.max_run_found + ph.max_match_found > 0x8000)
+    cconf.conf_ucl.max_match = MAXMATCH;
-        throwCantPack("decompressor limit exceeded, send a bugreport");
+    cconf.conf_lzma.max_num_probs = 1846 + (768 << 4); // ushort: ~28KB stack
+    compressWithFilters(&ft, 32, &cconf);
+
+    if (M_IS_NRV2B(ph.method) || M_IS_NRV2D(ph.method) || M_IS_NRV2E(ph.method))
+        if (ph.max_run_found + ph.max_match_found > 0x8000)
+            throwCantPack("decompressor limit exceeded, send a bugreport");
 
 #ifdef TESTING
-    if (opt->debug)
+    if (opt->debug.debug_level)
     {
         printf("image+relocs %d -> %d\n",ih_imagesize+relocsize,ph.c_len);
         printf("offsets: %d - %d\nmatches: %d - %d\nruns: %d - %d\n",
@@ -437,8 +542,8 @@ void PackExe::pack(OutputFile *fo)
 
     // set oh.min & oh.max
     ic = ih.min*16 + ih_imagesize;
-    if (ic < oh.ss*16 + oh.sp)
+    if (ic < oh.ss*16u + oh.sp)
-        ic = oh.ss*16 + oh.sp;
+        ic = oh.ss*16u + oh.sp;
     oh.min = (ic - (packedsize + lsize)) / 16;
     ic = oh.min + (ih.max - ih.min);
     oh.max = ic < 0xffff && ih.max != 0xffff ? ic : 0xffff;
@@ -472,60 +577,61 @@ void PackExe::pack(OutputFile *fo)
     }
     extra_info[eisize++] = (unsigned char) flag;
 
+    if (M_IS_NRV2B(ph.method) || M_IS_NRV2D(ph.method) || M_IS_NRV2E(ph.method))
+        linker->defineSymbol("bx_magic", 0x7FFF + 0x10 * ((packedsize & 15) + 1));
+
+    unsigned decompressor_entry = 1 + (packedsize & 15);
+    if (M_IS_LZMA(ph.method))
+        decompressor_entry = 0x10;
+    linker->defineSymbol("decompressor_entry", decompressor_entry);
+
     // patch loader
     if (flag & USEJUMP)
     {
         // I use a relocation entry to set the original cs
-        unsigned n = find_le32(loader,lsize,get_le32("IPCS"));
+        unsigned n = getLoaderSectionStart("EXEJUMPF") + 1;
-        patch_le32(loader,lsize,get_le32("IPCS"), ih.cs*0x10000 + ih.ip);
         n += packedsize + 2;
         oh.relocs = 1;
-        oh.firstreloc = (n&0xf) + ((n>>4)<<16);
+        oh.firstreloc = (n & 0xf) + ((n >> 4) << 16);
     }
     else
     {
-        patch_le16(loader,lsize,"IP",ih.ip);
-        if (ih.cs)
-            patch_le16(loader,lsize,"CS",ih.cs);
         oh.relocs = 0;
-        oh.firstreloc = ih.cs*0x10000 + ih.ip;
+        oh.firstreloc = ih.cs * 0x10000 + ih.ip;
     }
 
     // g++ 3.1 does not like the following line...
 //    oh.relocoffs = offsetof(exe_header_t, firstreloc);
     oh.relocoffs = ptr_diff(&oh.firstreloc, &oh);
 
-    if (flag & SP)
+    linker->defineSymbol("destination_segment", oh.ss - ph.c_len / 16 - e_len / 16);
-        patch_le16(loader,lsize,"SP",ih.sp);
+    linker->defineSymbol("source_segment", e_len / 16 + (copysize - firstcopy) / 16);
-    if (flag & SS)
+    linker->defineSymbol("copy_offset", firstcopy - 2);
-        patch_le16(loader,lsize,"SS",ih.ss);
+    linker->defineSymbol("words_to_copy",firstcopy / 2);
-    if (relocsize)
-        patch_le16(loader,lsize,"RS",(ph.u_len <= DI_LIMIT || (ph.u_len & 0x7fff) >= relocsize ? 0 : MAXRELOCS) - relocsize);
 
-    patchPackHeader(loader,e_len);
+    linker->defineSymbol("exe_stack_sp", oh.sp);
-
+    linker->defineSymbol("exe_stack_ss", oh.ss);
-    patch_le16(loader,e_len,"BX",0x800F + 0x10*((packedsize&15)+1) - 0x10);
+    linker->defineSymbol("interrupt", get_le16(ibuf + 8));
-    patch_le16(loader,e_len,"BP",(packedsize&15)+1);
+    linker->defineSymbol("attribute", get_le16(ibuf + 4));
-
+    linker->defineSymbol("orig_strategy", get_le16(ibuf + 6));
-    unsigned destpara = oh.ss - ph.c_len/16;
-    patch_le16(loader,e_len,"ES",destpara-e_len/16);
-    patch_le16(loader,e_len,"DS",e_len/16+(copysize-firstcopy)/16);
-    patch_le16(loader,e_len,"SI",firstcopy-2);
-    patch_le16(loader,e_len,"CX",firstcopy/2);
-
-    // finish --stub support
-    //if (ih.relocoffs >= 0x40 && memcmp(&ih.relocoffs,">TIPPACH",8))
-    //    throwCantPack("FIXME");
 
     const unsigned outputlen = sizeof(oh)+lsize+packedsize+eisize;
     oh.m512 = outputlen & 511;
     oh.p512 = (outputlen + 511) >> 9;
 
-//fprintf(stderr,"\ne_len=%x d_len=%x clen=%x oo=%x ulen=%x destp=%x copys=%x images=%x",e_len,d_len,packedsize,ph.overlap_overhead,ph.u_len,destpara,copysize,ih_imagesize);
+    const char *exeentry = M_IS_LZMA(ph.method) ? "LZMAENTRY" : "EXEENTRY";
+    oh.ip = device_driver ? getLoaderSection(exeentry) - 2 : 0;
+
+    defineDecompressorSymbols();
+    relocateLoader();
+    memcpy(loader, getLoader(), lsize);
+    patchPackHeader(loader,e_len);
+
+//fprintf(stderr,"\ne_len=%x d_len=%x c_len=%x oo=%x ulen=%x destp=%x copys=%x images=%x",e_len,d_len,packedsize,ph.overlap_overhead,ph.u_len,destpara,copysize,ih_imagesize);
 
     // write header + write loader + compressed file
 #ifdef TESTING
-    if (opt->debug)
+    if (opt->debug.debug_level)
         printf("\n%d %d %d %d\n",(int)sizeof(oh),e_len,packedsize,d_len);
 #endif
     fo->write(&oh,sizeof(oh));
@@ -565,7 +671,7 @@ int PackExe::canUnpack()
         return false;
     const off_t off = ih.headsize16 * 16;
     fi->seek(off, SEEK_SET);
-    bool b = readPackHeader(128);
+    bool b = readPackHeader(4096);
     return b && (off + (off_t) ph.c_len <= file_size);
 }
 
@@ -605,12 +711,11 @@ void PackExe::unpack(OutputFile *fo)
     {
         relocs -= get_le16(obuf+ph.u_len-2);
         ph.u_len -= 2;
-        upx_byte *p;
 
         wrkmem.alloc(4*MAXRELOCS);
-        unsigned es = 0,ones = get_le16(relocs);
+        unsigned es = 0, ones = get_le16(relocs);
-        unsigned seghi = get_le16(relocs+2);
+        const unsigned seghi = get_le16(relocs+2);
-        p = relocs + 4;
+        const upx_byte *p = relocs + 4;
 
         while (ones)
         {
@@ -628,10 +733,10 @@ void PackExe::unpack(OutputFile *fo)
                 dorel = true;
                 if (*p == 0)
                 {
-                    upx_byte *q;
+                    const upx_byte *q;
                     for (q = obuf+es*16+di; !(*q == 0x9a && get_le16(q+3) <= seghi); q++)
                         ;
-                    di = q - (obuf+es*16) + 3;
+                    di = ptr_diff(q, obuf+es*16) + 3;
                 }
                 else if (*p == 1)
                 {
@@ -668,15 +773,15 @@ void PackExe::unpack(OutputFile *fo)
     oh.ss = ih.ss;
 
     if (flag & MAXMEM)
-        imagesize -= 2, oh.max = get_le16(ibuf+imagesize);
+        { imagesize -= 2; oh.max = get_le16(ibuf+imagesize); }
     if (flag & MINMEM)
-        imagesize -= 2, oh.min = get_le16(ibuf+imagesize);
+        { imagesize -= 2; oh.min = get_le16(ibuf+imagesize); }
     if (flag & SP)
-        imagesize -= 2, oh.sp = get_le16(ibuf+imagesize);
+        { imagesize -= 2; oh.sp = get_le16(ibuf+imagesize); }
     if (flag & SS)
-        imagesize -= 2, oh.ss = get_le16(ibuf+imagesize);
+        { imagesize -= 2; oh.ss = get_le16(ibuf+imagesize); }
 
-    unsigned ip = (flag & USEJUMP) ? get_le32(ibuf+imagesize-4) : ih.firstreloc;
+    unsigned ip = (flag & USEJUMP) ? get_le32(ibuf+imagesize-4) : (unsigned) ih.firstreloc;
     oh.ip = ip & 0xffff;
     oh.cs = ip >> 16;
 
@@ -696,6 +801,75 @@ void PackExe::unpack(OutputFile *fo)
 }
 
 
+Linker* PackExe::newLinker() const
+{
+    return new ElfLinkerX86();
+}
+
+/*
+
+memory layout at decompression time
+===================================
+
+normal exe
+----------
+
+a, at load time
+
+(e - copying code, C - compressed data, d - decompressor+relocator,
+ x - not specified, U - uncompressed code+data, R uncompressed relocation)
+
+eeCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdddd
+^ CS:0                                       ^ SS:0
+
+b, after copying
+
+xxxxxxxxxxxxxxxCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdddd
+^ES:DI=0       ^ DS:SI=0                     ^ CS=SS, IP in range 0..0xf
+
+c, after uncompression
+
+UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUURRdddd
+                                           ^ ES:DI
+
+device driver
+-------------
+
+the file has 2 entry points, CS:0 in device driver mode, and
+CS:exe_as_device_entry in normal mode. the code in section DEVICEENTRY
+sets up the same environment for section EXEENTRY, as it would see in normal
+execution mode.
+
+lzma uncompression for normal exes
+----------------------------------
+
+(n - nrv2b uncompressor, l - nrv2b compressed lzma + relocator code)
+
+a, at load time
+
+nneelllCCCCCCCCCCCCCCCCCCCCCCCCC
+
+^ CS:0                                       ^ SS:0
+
+b, after nrv2b
+
+nneelllCCCCCCCCCCCCCCCCCCCCCCCCC             dddd
+^ CS:0                                       ^ SS:0x10
+
+after this, normal ee code runs
+
+lzma + device driver
+--------------------
+
+(D - device driver adapter)
+
+a, at load time
+
+DDnneelllCCCCCCCCCCCCCCCCCCCCCCCCC
+
+*/
+
+
 /*
 vi:ts=4:et
 */

src/p_exe.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,7 +22,7 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    Markus F.X.J. Oberhumer   Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   markus@oberhumer.com      ml1050@users.sourceforge.net
  */
 
 
@@ -42,6 +42,7 @@ public:
     virtual int getVersion() const { return 13; }
     virtual int getFormat() const { return UPX_F_DOS_EXE; }
     virtual const char *getName() const { return "dos/exe"; }
+    virtual const char *getFullName(const options_t *o) const { return o && o->cpu == o->CPU_8086 ? "i086-dos16.exe" : "i286-dos16.exe"; }
     virtual const int *getCompressionMethods(int method, int level) const;
     virtual const int *getFilters() const;
 
@@ -68,7 +69,9 @@ protected:
     virtual int readFileHeader(void);
 
     virtual int fillExeHeader(struct exe_header_t *) const;
-    virtual int buildLoader(const Filter *ft);
+    virtual void buildLoader(const Filter *ft);
+    virtual Linker* newLinker() const;
+    void addLoaderEpilogue(int flag);
 
     struct exe_header_t
     {
@@ -98,6 +101,7 @@ protected:
     unsigned relocsize;
 
     bool has_9a;
+    bool device_driver;
 
     enum {
         NORELOC = 1,
@@ -107,6 +111,9 @@ protected:
         MINMEM = 16,
         MAXMEM = 32
     };
+
+    unsigned stack_for_lzma;    // stack size required for lzma
+    bool use_clear_dirty_stack;
 };
 
 

src/p_lx_elf.h

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
+   Copyright (C) 2000-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,8 +22,11 @@
    If not, write to the Free Software Foundation, Inc.,
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-   Markus F.X.J. Oberhumer   Laszlo Molnar           John F. Reiser
+   Markus F.X.J. Oberhumer              Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu   jreiser@BitWagon.com
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
  */
 
 
@@ -31,52 +34,421 @@
 #define __UPX_P_LX_ELF_H
 
 
+class PackLinuxElf : public PackUnix
+{
+    typedef PackUnix super;
+public:
+    PackLinuxElf(InputFile *f);
+    virtual ~PackLinuxElf();
+    /*virtual void buildLoader(const Filter *);*/
+    virtual bool canUnpackVersion(int version) const { return (version >= 11); }
+
+protected:
+    virtual const int *getCompressionMethods(int method, int level) const;
+
+    // All other virtual functions in this class must be pure virtual
+    // because they depend on Elf32 or Elf64 data structures, which differ.
+
+    virtual void pack1(OutputFile *, Filter &) = 0;  // generate executable header
+    virtual void pack2(OutputFile *, Filter &) = 0;  // append compressed data
+    virtual void pack3(OutputFile *, Filter &) = 0;  // append loader
+    //virtual void pack4(OutputFile *, Filter &) = 0;  // append pack header
+
+    virtual void generateElfHdr(
+        OutputFile *,
+        void const *proto,
+        unsigned const brka
+    ) = 0;
+    virtual void defineSymbols(Filter const *);
+    virtual void addStubEntrySections(Filter const *);
+    virtual void unpack(OutputFile *fo) = 0;
+
+protected:
+    char       *file_image;       // if ET_DYN investigation
+    char const *dynstr;   // from DT_STRTAB
+
+    unsigned sz_phdrs;  // sizeof Phdr[]
+    unsigned sz_elf_hdrs;  // all Elf headers
+    unsigned sz_pack2;  // after pack2(), before loader
+
+    unsigned short e_machine;
+    unsigned char ei_class;
+    unsigned char ei_data;
+    unsigned char ei_osabi;
+    char const *osabi_note;
+};
+
+class PackLinuxElf32 : public PackLinuxElf
+{
+    typedef PackLinuxElf super;
+public:
+    PackLinuxElf32(InputFile *f);
+    virtual ~PackLinuxElf32();
+protected:
+    virtual int checkEhdr(Elf32_Ehdr const *ehdr) const;
+    virtual bool canPack();
+
+    // These ARM routines are essentially common to big/little endian,
+    // but the class hierarchy splits after this class.
+    virtual void ARM_defineSymbols(Filter const *ft);
+    virtual void ARM_updateLoader(OutputFile *);
+
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    virtual void pack2(OutputFile *, Filter &);  // append compressed data
+    virtual void pack3(OutputFile *, Filter &);  // append loader
+    virtual void pack4(OutputFile *, Filter &);  // append pack header
+    virtual void unpack(OutputFile *fo);
+
+    virtual void generateElfHdr(
+        OutputFile *,
+        void const *proto,
+        unsigned const brka
+    );
+    virtual void buildLinuxLoader(
+        upx_byte const *const proto,  // assembly-only sections
+        unsigned const szproto,
+        upx_byte const *const fold,  // linked assembly + C section
+        unsigned const szfold,
+        Filter const *ft
+    );
+    virtual off_t getbrk(const Elf32_Phdr *phdr, int e_phnum) const;
+    virtual void patchLoader();
+    virtual void updateLoader(OutputFile *fo);
+    virtual unsigned find_LOAD_gap(Elf32_Phdr const *const phdri, unsigned const k,
+        unsigned const e_phnum);
+    virtual off_t getbase(const Elf32_Phdr *phdr, int e_phnum) const;
+
+    static unsigned elf_hash(char const *) /*const*/;
+    virtual void const *elf_find_dynamic(unsigned) const;
+    virtual Elf32_Sym const *elf_lookup(char const *) const;
+    virtual unsigned elf_get_offset_from_address(unsigned) const;
+
+protected:
+    Elf32_Ehdr  ehdri; // from input file
+    Elf32_Phdr *phdri; // for  input file
+
+    Elf32_Dyn    const *dynseg;   // from PT_DYNAMIC
+    unsigned int const *hashtab;  // from DT_HASH
+    Elf32_Sym    const *dynsym;   // from DT_SYMTAB
+
+    struct cprElfHdr1 {
+        Elf32_Ehdr ehdr;
+        Elf32_Phdr phdr[1];
+        l_info linfo;
+    }
+    __attribute_packed;
+
+    struct cprElfHdr2 {
+        Elf32_Ehdr ehdr;
+        Elf32_Phdr phdr[2];
+        l_info linfo;
+    }
+    __attribute_packed;
+
+    struct cprElfHdr3 {
+        Elf32_Ehdr ehdr;
+        Elf32_Phdr phdr[3];
+        l_info linfo;
+    }
+    __attribute_packed;
+
+    cprElfHdr3 elfout;
+
+    struct Elf32_Note {
+        unsigned namesz;  // 8
+        unsigned descsz;  // 4
+        unsigned type;    // 1
+        char text[0x18 - 4*4];  // "OpenBSD"
+        unsigned end;     // 0
+    } elfnote;
+
+    static void compileTimeAssertions() {
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr1) == 52 + 1*32 + 12)
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr2) == 52 + 2*32 + 12)
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr3) == 52 + 3*32 + 12)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr1)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr2)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr3)
+    }
+};
+
+
+class PackLinuxElf64 : public PackLinuxElf
+{
+    typedef PackLinuxElf super;
+public:
+    PackLinuxElf64(InputFile *f);
+    virtual ~PackLinuxElf64();
+    /*virtual void buildLoader(const Filter *);*/
+
+protected:
+    virtual int checkEhdr(Elf64_Ehdr const *ehdr) const;
+
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    virtual void pack2(OutputFile *, Filter &);  // append compressed data
+    virtual void pack3(OutputFile *, Filter &);  // append loader
+    virtual void pack4(OutputFile *, Filter &);  // append pack header
+    virtual void unpack(OutputFile *fo);
+
+    virtual void generateElfHdr(
+        OutputFile *,
+        void const *proto,
+        unsigned const brka
+    );
+    virtual void buildLinuxLoader(
+        upx_byte const *const proto,  // assembly-only sections
+        unsigned const szproto,
+        upx_byte const *const fold,  // linked assembly + C section
+        unsigned const szfold,
+        Filter const *ft
+    );
+    virtual off_t getbrk(const Elf64_Phdr *phdr, int e_phnum) const;
+    virtual void patchLoader();
+    virtual void updateLoader(OutputFile *fo);
+    virtual unsigned find_LOAD_gap(Elf64_Phdr const *const phdri, unsigned const k,
+        unsigned const e_phnum);
+
+protected:
+    Elf64_Ehdr  ehdri; // from input file
+    Elf64_Phdr *phdri; // for  input file
+
+    struct cprElfHdr1 {
+        Elf64_Ehdr ehdr;
+        Elf64_Phdr phdr[1];
+        l_info linfo;
+    }
+    __attribute_packed;
+
+    struct cprElfHdr2 {
+        Elf64_Ehdr ehdr;
+        Elf64_Phdr phdr[2];
+        l_info linfo;
+    }
+    __attribute_packed;
+
+    struct cprElfHdr3 {
+        Elf64_Ehdr ehdr;
+        Elf64_Phdr phdr[3];
+        l_info linfo;
+    }
+    __attribute_packed;
+
+    cprElfHdr3 elfout;
+
+    static void compileTimeAssertions() {
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr1) == 64 + 1*56 + 12)
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr2) == 64 + 2*56 + 12)
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr3) == 64 + 3*56 + 12)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr1)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr2)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr3)
+    }
+};
+
+class PackLinuxElf32Be : public PackLinuxElf32
+{
+    typedef PackLinuxElf32 super;
+protected:
+    PackLinuxElf32Be(InputFile *f) : super(f) { bele = &N_BELE_RTP::be_policy; }
+
+    virtual acc_uint64l_t get_native64(const void *b) const { return get_be64(b); }
+    virtual unsigned get_native32(const void *b) const { return get_be32(b); }
+    virtual unsigned get_native16(const void *b) const { return get_be16(b); }
+    virtual void set_native64(void *b, acc_uint64l_t v) const { set_be64(b, v); }
+    virtual void set_native32(void *b, unsigned v) const { set_be32(b, v); }
+    virtual void set_native16(void *b, unsigned v) const { set_be16(b, v); }
+};
+
+class PackLinuxElf32Le : public PackLinuxElf32
+{
+    typedef PackLinuxElf32 super;
+protected:
+    PackLinuxElf32Le(InputFile *f) : super(f) { bele = &N_BELE_RTP::le_policy; }
+
+    virtual acc_uint64l_t get_native64(const void *b) const { return get_le64(b); }
+    virtual unsigned get_native32(const void *b) const { return get_le32(b); }
+    virtual unsigned get_native16(const void *b) const { return get_le16(b); }
+    virtual void set_native64(void *b, acc_uint64l_t v) const { set_le64(b, v); }
+    virtual void set_native32(void *b, unsigned v) const { set_le32(b, v); }
+    virtual void set_native16(void *b, unsigned v) const { set_le16(b, v); }
+};
+
+class PackLinuxElf64Le : public PackLinuxElf64
+{
+    typedef PackLinuxElf64 super;
+protected:
+    PackLinuxElf64Le(InputFile *f) : super(f) { bele = &N_BELE_RTP::le_policy; }
+
+    virtual acc_uint64l_t get_native64(const void *b) const { return get_le64(b); }
+    virtual unsigned get_native32(const void *b) const { return get_le32(b); }
+    virtual unsigned get_native16(const void *b) const { return get_le16(b); }
+    virtual void set_native64(void *b, acc_uint64l_t v) const { set_le64(b, v); }
+    virtual void set_native32(void *b, unsigned v) const { set_le32(b, v); }
+    virtual void set_native16(void *b, unsigned v) const { set_le16(b, v); }
+};
+
+/*************************************************************************
+// linux/elf64amd
+**************************************************************************/
+
+class PackLinuxElf64amd : public PackLinuxElf64Le
+{
+    typedef PackLinuxElf64Le super;
+public:
+    PackLinuxElf64amd(InputFile *f);
+    virtual ~PackLinuxElf64amd();
+    virtual int getFormat() const { return UPX_F_LINUX_ELF64_AMD; }
+    virtual const char *getName() const { return "linux/ElfAMD"; }
+    virtual const char *getFullName(const options_t *) const { return "amd64-linux.elf"; }
+    virtual const int *getFilters() const;
+    virtual bool canPack();
+protected:
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    //virtual void pack3(OutputFile *, Filter &);  // append loader
+    virtual void buildLoader(const Filter *);
+    virtual Linker* newLinker() const;
+    virtual void defineSymbols(Filter const *);
+};
+
+/*************************************************************************
+// linux/elf32ppc
+**************************************************************************/
+
+class PackLinuxElf32ppc : public PackLinuxElf32Be
+{
+    typedef PackLinuxElf32Be super;
+public:
+    PackLinuxElf32ppc(InputFile *f);
+    virtual ~PackLinuxElf32ppc();
+    virtual int getFormat() const { return UPX_F_LINUX_ELFPPC32; }
+    virtual const char *getName() const { return "linux/ElfPPC"; }
+    virtual const char *getFullName(const options_t *) const { return "powerpc-linux.elf"; }
+    virtual const int *getFilters() const;
+protected:
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    virtual void buildLoader(const Filter *);
+    virtual Linker* newLinker() const;
+};
+
 /*************************************************************************
 // linux/elf386
 **************************************************************************/
 
-class PackLinuxI386elf : public PackLinuxI386
+class PackLinuxElf32x86 : public PackLinuxElf32Le
 {
-    typedef PackLinuxI386 super;
+    typedef PackLinuxElf32Le super;
 public:
-    PackLinuxI386elf(InputFile *f);
+    PackLinuxElf32x86(InputFile *f);
-    virtual ~PackLinuxI386elf();
+    virtual ~PackLinuxElf32x86();
-    virtual int getVersion() const { return 13; }
     virtual int getFormat() const { return UPX_F_LINUX_ELF_i386; }
     virtual const char *getName() const { return "linux/elf386"; }
+    virtual const char *getFullName(const options_t *) const { return "i386-linux.elf"; }
     virtual const int *getFilters() const;
-    virtual int buildLoader(const Filter *);
 
     virtual void unpack(OutputFile *fo);
 
-    virtual bool canPack();
-    virtual bool canUnpackVersion(int version) const
-        { return (version >= 11); }
-
 protected:
-    struct Extent {
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
-        off_t offset;
+
-        off_t size;
+    virtual void buildLoader(const Filter *);
-    };
+    virtual void addStubEntrySections(Filter const *);
-    virtual void packExtent(Extent const &x,
+    virtual Linker* newLinker() const;
-        unsigned &total_in, unsigned &total_out, Filter *, OutputFile *);
+    virtual void defineSymbols(Filter const *);
-    virtual void unpackExtent(unsigned wanted, OutputFile *fo,
+};
-        unsigned &total_in, unsigned &total_out,
+
-        unsigned &c_adler, unsigned &u_adler,
+class PackBSDElf32x86 : public PackLinuxElf32x86
-        bool first_PF_X, unsigned szb_info );
+{
+    typedef PackLinuxElf32x86 super;
+public:
+    PackBSDElf32x86(InputFile *f);
+    virtual ~PackBSDElf32x86();
+    virtual int getFormat() const { return UPX_F_BSD_ELF_i386; }
+    virtual const char *getName() const { return "BSD/elf386"; }
 
 protected:
     virtual void pack1(OutputFile *, Filter &);  // generate executable header
-    virtual void pack2(OutputFile *, Filter &);  // append compressed data
-
-    virtual void patchLoader();
-
-    Elf_LE32_Ehdr  ehdri; // from input file
-    Elf_LE32_Phdr *phdri; // for  input file
-    unsigned sz_phdrs;  // sizeof Phdr[]
 
+    virtual void buildLoader(const Filter *);
 };
 
+class PackFreeBSDElf32x86 : public PackBSDElf32x86
+{
+    typedef PackBSDElf32x86 super;
+public:
+    PackFreeBSDElf32x86(InputFile *f);
+    virtual ~PackFreeBSDElf32x86();
+    virtual const char *getFullName(const options_t *) const { return "i386-freebsd.elf"; }
+};
+
+class PackNetBSDElf32x86 : public PackBSDElf32x86
+{
+    typedef PackBSDElf32x86 super;
+public:
+    PackNetBSDElf32x86(InputFile *f);
+    virtual ~PackNetBSDElf32x86();
+    virtual const char *getFullName(const options_t *) const { return "i386-netbsd.elf"; }
+};
+
+class PackOpenBSDElf32x86 : public PackBSDElf32x86
+{
+    typedef PackBSDElf32x86 super;
+public:
+    PackOpenBSDElf32x86(InputFile *f);
+    virtual ~PackOpenBSDElf32x86();
+    virtual const char *getFullName(const options_t *) const { return "i386-openbsd.elf"; }
+
+protected:
+    virtual void buildLoader(const Filter *ft);
+    virtual void generateElfHdr(
+        OutputFile *,
+        void const *proto,
+        unsigned const brka
+    );
+};
+
+/*************************************************************************
+// linux/elfarm
+**************************************************************************/
+
+class PackLinuxElf32armLe : public PackLinuxElf32Le
+{
+    typedef PackLinuxElf32Le super;
+public:
+    PackLinuxElf32armLe(InputFile *f);
+    virtual ~PackLinuxElf32armLe();
+    virtual int getFormat() const { return UPX_F_LINUX_ELF32_ARMLE; }
+    virtual const char *getName() const { return "linux/armLE"; }
+    virtual const char *getFullName(const options_t *) const { return "arm-linux.elf"; }
+    virtual const int *getFilters() const;
+
+protected:
+    virtual const int *getCompressionMethods(int method, int level) const;
+    virtual Linker* newLinker() const;
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    virtual void buildLoader(const Filter *);
+    virtual void updateLoader(OutputFile *);
+    virtual void defineSymbols(Filter const *);
+};
+
+class PackLinuxElf32armBe : public PackLinuxElf32Be
+{
+    typedef PackLinuxElf32Be super;
+public:
+    PackLinuxElf32armBe(InputFile *f);
+    virtual ~PackLinuxElf32armBe();
+    virtual int getFormat() const { return UPX_F_LINUX_ELF32_ARMBE; }
+    virtual const char *getName() const { return "linux/armBE"; }
+    virtual const char *getFullName(const options_t *) const { return "armeb-linux.elf"; }
+    virtual const int *getFilters() const;
+
+protected:
+    virtual const int *getCompressionMethods(int method, int level) const;
+    virtual Linker* newLinker() const;
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    virtual void buildLoader(const Filter *);
+    virtual void updateLoader(OutputFile *);
+    virtual void defineSymbols(Filter const *);
+};
 
 #endif /*} already included */
 

src/p_lx_exc.cpp

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2001-2002 John F. Reiser
+   Copyright (C) 2001-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,8 +22,11 @@
    If not, write to the Free Software Foundation, Inc.,
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-   Markus F.X.J. Oberhumer   Laszlo Molnar           John F. Reiser
+   Markus F.X.J. Oberhumer              Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu   jreiser@BitWagon.com
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
  */
 
 
@@ -37,22 +40,49 @@
 #include "p_unix.h"
 #include "p_lx_exc.h"
 
-#define PT_LOAD     Elf_LE32_Phdr::PT_LOAD
+#define PT_LOAD     Elf32_Phdr::PT_LOAD
-#define PT_DYNAMIC  Elf_LE32_Phdr::PT_DYNAMIC
+#define PT_DYNAMIC  Elf32_Phdr::PT_DYNAMIC
-#define DT_NULL     Elf_LE32_Dyn::DT_NULL
+#if 0 // UNUSED
-#define DT_NEEDED   Elf_LE32_Dyn::DT_NEEDED
+#define DT_NULL     Elf32_Dyn::DT_NULL
-#define DT_STRTAB   Elf_LE32_Dyn::DT_STRTAB
+#define DT_NEEDED   Elf32_Dyn::DT_NEEDED
-#define DT_STRSZ    Elf_LE32_Dyn::DT_STRSZ
+#define DT_STRTAB   Elf32_Dyn::DT_STRTAB
+#define DT_STRSZ    Elf32_Dyn::DT_STRSZ
+#endif
 
 
 /*************************************************************************
 // linux/386 (generic "execve" format)
 **************************************************************************/
 
+PackLinuxI386::PackLinuxI386(InputFile *f) : super(f),
+    ei_osabi(Elf32_Ehdr::ELFOSABI_LINUX), osabi_note(NULL)
+{
+    bele = &N_BELE_RTP::le_policy;
+}
+
+PackBSDI386::PackBSDI386(InputFile *f) : super(f)
+{
+    // Shell scripts need help specifying the target operating system.
+    // Elf input will override this with .e_ident[EI_OSABI] or PT_NOTE.
+    // [2006-09-27: Today's only runtime stub for shell is for linux.]
+    if (Elf32_Ehdr::ELFOSABI_LINUX==opt->o_unix.osabi0) {
+        // Disallow an incompatibility.
+        ei_osabi = Elf32_Ehdr::ELFOSABI_NONE;
+    }
+    else {
+        ei_osabi = opt->o_unix.osabi0;  // might be ELFOSABI_NONE
+    }
+}
+
 static const
-#include "stub/l_lx_exec86.h"
+#include "stub/i386-linux.elf.execve-entry.h"
 static const
-#include "stub/fold_exec86.h"
+#include "stub/i386-linux.elf.execve-fold.h"
+
+static const
+#include "stub/i386-bsd.elf.execve-entry.h"
+static const
+#include "stub/i386-bsd.elf.execve-fold.h"
 
 
 const int *PackLinuxI386::getCompressionMethods(int method, int level) const
@@ -63,32 +93,53 @@ const int *PackLinuxI386::getCompressionMethods(int method, int level) const
 const int *PackLinuxI386::getFilters() const
 {
     static const int filters[] = {
-#if 1
-        0x26, 0x24, 0x11, 0x14, 0x13, 0x16, 0x25, 0x15, 0x12,
-#else
         0x49, 0x46,
+        0x26, 0x24, 0x11, 0x14, 0x13, 0x16, 0x25, 0x15, 0x12,
+#if 0
+// 0x80..0x87 are regarded as "untested".
         0x83, 0x86, 0x80, 0x84, 0x87, 0x81, 0x82, 0x85,
         0x24, 0x16, 0x13, 0x14, 0x11, 0x25, 0x15, 0x12,
 #endif
-    -1 };
+    FT_END };
     return filters;
 }
 
+static void
+set_stub_brk(Elf_LE32_Phdr *const phdr1, unsigned brka)
+{
+#define PAGE_MASK (~0ul<<12)
+        // linux-2.6.14 binfmt_elf.c: SIGKILL if (0==.p_memsz) on a page boundary
+        unsigned const brkb = brka | ((0==(~PAGE_MASK & brka)) ? 0x20 : 0);
+        phdr1->p_type = PT_LOAD;  // be sure
+        phdr1->p_offset = ~PAGE_MASK & brkb;
+        phdr1->p_vaddr = brkb;
+        phdr1->p_paddr = brkb;
+        phdr1->p_filesz = 0;
+        phdr1->p_memsz =  0;
+        if (0==phdr1->p_flags) {
+            phdr1->p_flags = Elf32_Phdr::PF_R|Elf32_Phdr::PF_W;
+        }
+        if (0==phdr1->p_align) {
+            phdr1->p_align = 0x1000;
+        }
+#undef PAGE_MASK
+}
+
 void
 PackLinuxI386::generateElfHdr(
-    OutputFile *const fo,
+    OutputFile *fo,
-    void const *const proto,
+    void const *proto,
     unsigned const brka
 )
 {
-    cprElfHdr1 *const h1 = (cprElfHdr1 *)&elfout;
     cprElfHdr2 *const h2 = (cprElfHdr2 *)&elfout;
-    memcpy(h2, proto, sizeof(*h2));
+    cprElfHdr3 *const h3 = (cprElfHdr3 *)&elfout;
+    memcpy(h3, proto, sizeof(*h3));  // reads beyond, but OK
 
-    assert(h2->ehdr.e_phoff     == sizeof(Elf_LE32_Ehdr));
+    assert(h2->ehdr.e_phoff     == sizeof(Elf32_Ehdr));
     assert(h2->ehdr.e_shoff     == 0);
-    assert(h2->ehdr.e_ehsize    == sizeof(Elf_LE32_Ehdr));
+    assert(h2->ehdr.e_ehsize    == sizeof(Elf32_Ehdr));
-    assert(h2->ehdr.e_phentsize == sizeof(Elf_LE32_Phdr));
+    assert(h2->ehdr.e_phentsize == sizeof(Elf32_Phdr));
     assert(h2->ehdr.e_shnum     == 0);
 
 #if 0  //{
@@ -100,29 +151,26 @@ PackLinuxI386::generateElfHdr(
 
     // Info for OS kernel to set the brk()
     if (brka) {
-        h2->phdr[1].p_type = PT_LOAD;  // be sure
+        set_stub_brk(&h2->phdr[1], brka);
-        h2->phdr[1].p_offset = 0xfff&brka;
-        h2->phdr[1].p_vaddr = brka;
-        h2->phdr[1].p_paddr = brka;
-        h2->phdr[1].p_filesz = 0;
-        h2->phdr[1].p_memsz =  0;
     }
 
-    if (ph.format==UPX_F_LINUX_i386 ) {
+    if (ph.format==UPX_F_LINUX_i386
-        assert(h1->ehdr.e_phnum==1);
+    ||  ph.format==UPX_F_LINUX_SH_i386
-        memset(&h1->linfo, 0, sizeof(h1->linfo));
+    ||  ph.format==UPX_F_BSD_i386
-        fo->write(h1, sizeof(*h1));
+    ) {
-    }
+        // SELinux, PAx, grSecurity demand no PF_W if PF_X.
-    else if (ph.format==UPX_F_LINUX_ELF_i386) {
+        // kernel-2.6.12-2.3.legacy_FC3 has a bug which demands
+        // a PT_LOAD with PF_W, else SIGSEGV when clearing page fragment
+        // on low page of ".bss", which is the high page of .text.
+        // So the minimum number of PT_LOAD is 2.
         assert(h2->ehdr.e_phnum==2);
         memset(&h2->linfo, 0, sizeof(h2->linfo));
         fo->write(h2, sizeof(*h2));
     }
-    else if (ph.format==UPX_F_LINUX_SH_i386) {
+    else if (ph.format==UPX_F_LINUX_ELFI_i386) {
-        assert(h2->ehdr.e_phnum==1);
+        assert(h3->ehdr.e_phnum==3);
-        h2->ehdr.e_phnum = 2;
+        memset(&h3->linfo, 0, sizeof(h3->linfo));
-        memset(&h2->linfo, 0, sizeof(h2->linfo));
+        fo->write(h3, sizeof(*h3));
-        fo->write(h2, sizeof(*h2));
     }
     else {
         assert(false);  // unknown ph.format, PackUnix::generateElfHdr
@@ -135,7 +183,16 @@ PackLinuxI386::pack1(OutputFile *fo, Filter &)
     // create a pseudo-unique program id for our paranoid stub
     progid = getRandomId();
 
-    generateElfHdr(fo, linux_i386exec_fold, 0);
+    generateElfHdr(fo, stub_i386_linux_elf_execve_fold, 0);
+}
+
+void
+PackBSDI386::pack1(OutputFile *fo, Filter &)
+{
+    // create a pseudo-unique program id for our paranoid stub
+    progid = getRandomId();
+
+    generateElfHdr(fo, stub_i386_bsd_elf_execve_fold, 0);
 }
 
 void
@@ -144,21 +201,82 @@ PackLinuxI386::pack4(OutputFile *fo, Filter &ft)
     overlay_offset = sizeof(elfout.ehdr) +
         (elfout.ehdr.e_phentsize * elfout.ehdr.e_phnum) +
         sizeof(l_info) +
-        ((elfout.ehdr.e_phnum==3) ? elfout.phdr[2].p_memsz : 0) ;
+        ((elfout.ehdr.e_phnum==3) ? (unsigned) elfout.phdr[2].p_memsz : 0) ;
+    unsigned nw = fo->getBytesWritten();
+    elfout.phdr[0].p_filesz = nw;
+    nw = 0u-((0u-elfout.phdr[0].p_align) & (0u-nw));  // ALIGN_UP
     super::pack4(fo, ft);  // write PackHeader and overlay_offset
+    set_stub_brk(&elfout.phdr[1], nw + elfout.phdr[0].p_vaddr);
 
-    elfout.phdr[0].p_filesz = fo->getBytesWritten();
+#if 0  // {
+    // /usr/bin/strip from RedHat 8.0 (binutils-2.13.90.0.2-2)
+    // generates a 92-byte [only] output, because the "linking view"
+    // is empty.  This code supplies a "linking view".
+    // However, 'strip' then generates _plausible_ junk that gets
+    // "Illegal instruction"  because 'strip' changes p_hdr[1].p_align,
+    // .p_offset, and .p_vaddr incorrectly.  So the "cure" is worse than
+    // the disease.  It is obvious that a 92-byte file is bad,
+    // but it is not obvious that the changed .p_align is bad.
+    // Also, having a totally empty "linking view" is easier for 'strip'
+    // to fix: just detect that, and do nothing.
+    // So, we don't use this code for now [2003-01-11].
 
-#define PAGE_MASK (~0<<12)
+    // Supply a "linking view" that covers everything,
+    // so that 'strip' does not omit everything.
+    Elf_LE32_Shdr shdr;
+    // The section header string table.
+    char const shstrtab[] = "\0.\0.shstrtab";
+
+    unsigned eod = elfout.phdr[0].p_filesz;
+    elfout.ehdr.e_shoff = eod;
+    elfout.ehdr.e_shentsize = sizeof(shdr);
+    elfout.ehdr.e_shnum = 3;
+    elfout.ehdr.e_shstrndx = 2;
+
+    // An empty Elf32_Shdr for space as a null index.
+    memset(&shdr, 0, sizeof(shdr));
+    shdr.sh_type = Elf32_Shdr::SHT_NULL;
+    fo->write(&shdr, sizeof(shdr));
+
+    // Cover all the bits we need at runtime.
+    memset(&shdr, 0, sizeof(shdr));
+    shdr.sh_name = 1;
+    shdr.sh_type = Elf32_Shdr::SHT_PROGBITS;
+    shdr.sh_flags = Elf32_Shdr::SHF_ALLOC;
+    shdr.sh_addr = elfout.phdr[0].p_vaddr;
+    shdr.sh_offset = overlay_offset;
+    shdr.sh_size = eod - overlay_offset;
+    shdr.sh_addralign = 4096;
+    fo->write(&shdr, sizeof(shdr));
+
+    // A section header for the section header string table.
+    memset(&shdr, 0, sizeof(shdr));
+    shdr.sh_name = 3;
+    shdr.sh_type = Elf32_Shdr::SHT_STRTAB;
+    shdr.sh_offset = 3*sizeof(shdr) + eod;
+    shdr.sh_size = sizeof(shstrtab);
+    fo->write(&shdr, sizeof(shdr));
+
+    fo->write(shstrtab, sizeof(shstrtab));
+#endif  // }
+
+
+    // Cannot pre-round .p_memsz.  If .p_filesz < .p_memsz, then kernel
+    // tries to make .bss, which requires PF_W.
+    // But strict SELinux (or PaX, grSecurity) disallows PF_W with PF_X.
+#if 0  /*{*/
+#undef PAGE_MASK
+#define PAGE_MASK (~0u<<12)
     // pre-calculate for benefit of runtime disappearing act via munmap()
     elfout.phdr[0].p_memsz =  PAGE_MASK & (~PAGE_MASK + elfout.phdr[0].p_filesz);
 #undef PAGE_MASK
+#else  /*}{*/
+    elfout.phdr[0].p_memsz =  elfout.phdr[0].p_filesz;
+#endif  /*}*/
 
     // rewrite Elf header
     fo->seek(0, SEEK_SET);
-    fo->rewrite(&elfout, sizeof(elfout.ehdr) +
+    fo->rewrite(&elfout, overlay_offset);
-        elfout.ehdr.e_phnum * sizeof(elfout.phdr[0]) +
-        sizeof(l_info) );
 }
 
 static unsigned
@@ -170,7 +288,12 @@ umax(unsigned a, unsigned b)
     return a;
 }
 
-int
+Linker *PackLinuxI386::newLinker() const
+{
+    return new ElfLinkerX86;
+}
+
+void
 PackLinuxI386::buildLinuxLoader(
     upx_byte const *const proto,
     unsigned        const szproto,
@@ -181,128 +304,106 @@ PackLinuxI386::buildLinuxLoader(
 {
     initLoader(proto, szproto);
 
+    unsigned fold_hdrlen = 0;
+  if (0 < szfold) {
     cprElfHdr1 const *const hf = (cprElfHdr1 const *)fold;
-    unsigned const fold_hdrlen = umax(0x80, sizeof(hf->ehdr) +
+    fold_hdrlen = sizeof(hf->ehdr) + hf->ehdr.e_phentsize * hf->ehdr.e_phnum +
-        hf->ehdr.e_phentsize * hf->ehdr.e_phnum + sizeof(l_info) );
+         sizeof(l_info);
-    struct b_info h; memset(&h, 0, sizeof(h));
+    if (0 == get_le32(fold_hdrlen + fold)) {
-    h.sz_unc = szfold - fold_hdrlen;
+        // inconsistent SIZEOF_HEADERS in *.lds (ld, binutils)
-    h.b_method = (unsigned char) ph.method;
+        fold_hdrlen = umax(0x80, fold_hdrlen);
-    h.b_ftid = (unsigned char) ph.filter;
+    }
-    h.b_cto8 = (unsigned char) ph.filter_cto;
+  }
-    unsigned char const *const uncLoader = fold_hdrlen + fold;
-
-    unsigned char *const cprLoader = new unsigned char[sizeof(h) + h.sz_unc];
-    int r = upx_compress(uncLoader, h.sz_unc, sizeof(h) + cprLoader, &h.sz_cpr,
-        NULL, ph.method, 10, NULL, NULL );
-    if (r != UPX_E_OK || h.sz_cpr >= h.sz_unc)
-        throwInternalError("loader compression failed");
-    memcpy(cprLoader, &h, sizeof(h));
-
     // This adds the definition to the "library", to be used later.
-    linker->addSection("FOLDEXEC", cprLoader, sizeof(h) + h.sz_cpr);
+    // NOTE: the stub is NOT compressed!  The savings is not worth it.
-    delete cprLoader;
+    linker->addSection("FOLDEXEC", fold + fold_hdrlen, szfold - fold_hdrlen, 0);
 
     n_mru = ft->n_mru;
 
-    // Here is a quick summary of the format of the output file:
+// Rely on "+80CXXXX" [etc] in getDecompressorSections() packer_c.cpp */
-    linker->setLoaderAlignOffset(
+//    // Here is a quick summary of the format of the output file:
-            // Elf32_Edhr
+//    linker->setLoaderAlignOffset(
-        sizeof(elfout.ehdr) +
+//            // Elf32_Edhr
-            // Elf32_Phdr: 1 for exec86, 2 for sh86, 3 for elf86
+//        sizeof(elfout.ehdr) +
-        (elfout.ehdr.e_phentsize * elfout.ehdr.e_phnum) +
+//            // Elf32_Phdr: 1 for exec86, 2 for sh86, 3 for elf86
-            // checksum UPX! lsize version format
+//        (elfout.ehdr.e_phentsize * elfout.ehdr.e_phnum) +
-        sizeof(l_info) +
+//            // checksum UPX! lsize version format
-            // PT_DYNAMIC with DT_NEEDED "forwarded" from original file
+//        sizeof(l_info) +
-        ((elfout.ehdr.e_phnum==3) ? elfout.phdr[2].p_memsz : 0) +
+//            // PT_DYNAMIC with DT_NEEDED "forwarded" from original file
-            // p_progid, p_filesize, p_blocksize
+//        ((elfout.ehdr.e_phnum==3) ? (unsigned) elfout.phdr[2].p_memsz : 0) +
-        sizeof(p_info) +
+//            // p_progid, p_filesize, p_blocksize
-            // compressed data
+//        sizeof(p_info) +
-        b_len + ph.c_len );
+//            // compressed data
-            // entry to stub
+//        b_len + ph.c_len );
-    addLoader("LEXEC000", 0);
+//            // entry to stub
+    addLoader("LEXEC000", NULL);
 
     if (ft->id) {
-        if (ph.format==UPX_F_LINUX_ELF_i386) { // decompr, unfilter are separate
-            addLoader("LXUNF000", 0);
-            addLoader("LXUNF002", 0);
-                if (0x80==(ft->id & 0xF0)) {
-                    if (256==n_mru) {
-                        addLoader("MRUBYTE0", 0);
-                    }
-                    else if (n_mru) {
-                        addLoader("LXMRU005", 0);
-                    }
-                    if (n_mru) {
-                        addLoader("LXMRU006", 0);
-                    }
-                    else {
-                        addLoader("LXMRU007", 0);
-                    }
-            }
-            else if (0x40==(ft->id & 0xF0)) {
-                addLoader("LXUNF008", 0);
-            }
-            addLoader("LXUNF010", 0);
-        }
         if (n_mru) {
-            addLoader("LEXEC009", 0);
+            addLoader("LEXEC009", NULL);
         }
     }
-    addLoader("LEXEC010", 0);
+    addLoader("LEXEC010", NULL);
-    addLoader(getDecompressor(), 0);
+    linker->defineSymbol("filter_cto", ft->cto);
-    addLoader("LEXEC015", 0);
+    linker->defineSymbol("filter_length",
+                         (ft->id & 0xf) % 3 == 0 ? ft->calls :
+                         ft->lastcall - ft->calls * 4);
+    addLoader(getDecompressorSections(), NULL);
+    addLoader("LEXEC015", NULL);
     if (ft->id) {
-        if (ph.format==UPX_F_LINUX_ELF_i386) {  // decompr, unfilter are separate
+        {  // decompr, unfilter not separate
-            if (0x80!=(ft->id & 0xF0)) {
-                addLoader("LXUNF042", 0);
-            }
-        }
-        else {  // decompr, unfilter not separate
             if (0x80==(ft->id & 0xF0)) {
-                addLoader("LEXEC110", 0);
+                addLoader("LEXEC110", NULL);
                 if (n_mru) {
-                    addLoader("LEXEC100", 0);
+                    addLoader("LEXEC100", NULL);
                 }
                 // bug in APP: jmp and label must be in same .asx/.asy
-                addLoader("LEXEC016", 0);
+                addLoader("LEXEC016", NULL);
             }
         }
         addFilter32(ft->id);
-        if (ph.format==UPX_F_LINUX_ELF_i386) { // decompr, unfilter are separate
+        {  // decompr always unfilters
-            if (0x80==(ft->id & 0xF0)) {
+            addLoader("LEXEC017", NULL);
-                if (0==n_mru) {
-                    addLoader("LXMRU058", 0);
-                }
-            }
-            addLoader("LXUNF035", 0);
-        }
-        else {  // decompr always unfilters
-            addLoader("LEXEC017", 0);
         }
     }
-
+    else {
-    addLoader("IDENTSTR", 0);
+        addLoader("LEXEC017", NULL);
-    addLoader("LEXEC020", 0);
-    addLoader("FOLDEXEC", 0);
-
-    char *ptr_cto = (char *)const_cast<unsigned char *>(getLoader());
-    int sz_cto = getLoaderSize();
-    if (0x20==(ft->id & 0xF0) || 0x30==(ft->id & 0xF0)) {  // push byte '?'  ; cto8
-        patch_le16(ptr_cto, sz_cto, "\x6a?", 0x6a + (ft->cto << 8));
-        checkPatch(NULL, 0, 0, 0);  // reset
     }
-    // PackHeader and overlay_offset at the end of the output file,
-    // after the compressed data.
 
-    return getLoaderSize();
+    addLoader("IDENTSTR", NULL);
+    addLoader("LEXEC020", NULL);
+    addLoader("FOLDEXEC", NULL);
+    if (M_IS_LZMA(ph.method)) {
+        const lzma_compress_result_t *res = &ph.compress_result.result_lzma;
+        acc_uint32e_t properties = // lc, lp, pb, dummy
+            (res->lit_context_bits << 0) |
+            (res->lit_pos_bits << 8) |
+            (res->pos_bits << 16);
+        if (linker->bele->isBE()) // big endian - bswap32
+            acc_swab32s(&properties);
+        linker->defineSymbol("lzma_properties", properties);
+        // -2 for properties
+        linker->defineSymbol("lzma_c_len", ph.c_len - 2);
+        linker->defineSymbol("lzma_u_len", ph.u_len);
+        unsigned const stack = getDecompressorWrkmemSize();
+        linker->defineSymbol("lzma_stack_adjust", 0u - stack);
+    }
+    if (0x80==(ft->id & 0xF0)) {
+        int const mru = ft->n_mru ? 1+ ft->n_mru : 0;
+        if (mru && mru!=256) {
+            unsigned const is_pwr2 = (0==((mru -1) & mru));
+            linker->defineSymbol("NMRU", mru - is_pwr2);
+        }
+    }
+    relocateLoader();
 }
 
-int
+void
 PackLinuxI386::buildLoader(Filter const *ft)
 {
-    unsigned const sz_fold = sizeof(linux_i386exec_fold);
+    unsigned const sz_fold = sizeof(stub_i386_linux_elf_execve_fold);
     MemBuffer buf(sz_fold);
-    memcpy(buf, linux_i386exec_fold, sz_fold);
+    memcpy(buf, stub_i386_linux_elf_execve_fold, sz_fold);
 
     // patch loader
     // note: we only can use /proc/<pid>/fd when exetype > 0.
@@ -312,22 +413,32 @@ PackLinuxI386::buildLoader(Filter const *ft)
     patch_le32(buf,sz_fold,"UPX3",progid);
     patch_le32(buf,sz_fold,"UPX2",exetype > 0 ? 0 : 0x7fffffff);
 
-    // get fresh filter
+    buildLinuxLoader(
-    Filter fold_ft = *ft;
+        stub_i386_linux_elf_execve_entry, sizeof(stub_i386_linux_elf_execve_entry),
-    fold_ft.init(ft->id, ft->addvalue);
-    int preferred_ctos[2] = {ft->cto, -1};
-    fold_ft.preferred_ctos = preferred_ctos;
-
-    // filter
-    optimizeFilter(&fold_ft, buf, sz_fold);
-    bool success = fold_ft.filter(buf + sizeof(cprElfHdr2), sz_fold - sizeof(cprElfHdr2));
-    (void)success;
-
-    return buildLinuxLoader(
-        linux_i386exec_loader, sizeof(linux_i386exec_loader),
         buf, sz_fold, ft );
 }
 
+void
+PackBSDI386::buildLoader(Filter const *ft)
+{
+    unsigned const sz_fold = sizeof(stub_i386_bsd_elf_execve_fold);
+    MemBuffer buf(sz_fold);
+    memcpy(buf, stub_i386_bsd_elf_execve_fold, sz_fold);
+
+    // patch loader
+    // note: we only can use /proc/<pid>/fd when exetype > 0.
+    //   also, we sleep much longer when compressing a script.
+    checkPatch(NULL, 0, 0, 0);  // reset
+    patch_le32(buf,sz_fold,"UPX4",exetype > 0 ? 3 : 15);   // sleep time
+    patch_le32(buf,sz_fold,"UPX3",progid);
+    patch_le32(buf,sz_fold,"UPX2",exetype > 0 ? 0 : 0x7fffffff);
+
+    buildLinuxLoader(
+        stub_i386_bsd_elf_execve_entry, sizeof(stub_i386_bsd_elf_execve_entry),
+        buf, sz_fold, ft );
+}
+
+// FIXME: getLoaderPrefixSize is unused?
 int PackLinuxI386::getLoaderPrefixSize() const
 {
     return 116;
@@ -347,17 +458,18 @@ int PackLinuxI386::checkEhdr(const Elf_LE32_Ehdr *ehdr) const
         return -1;
 
     // now check the ELF header
-    if (!memcmp(buf+8, "FreeBSD", 7))                   // branded
+    if (!memcmp(buf+8, "FreeBSD", 7))                  // branded
         return 1;
-    if (ehdr->e_type != 2)                              // executable
+    if (ehdr->e_type != Elf32_Ehdr::ET_EXEC
+    &&  ehdr->e_type != Elf32_Ehdr::ET_DYN )           // executable
         return 2;
-    if (ehdr->e_machine != 3)                           // Intel 80386
+    if (ehdr->e_machine != Elf32_Ehdr::EM_386)         // Intel 80386
         return 3;
-    if (ehdr->e_version != 1)                           // version
+    if (ehdr->e_version != Elf32_Ehdr::EV_CURRENT)     // version
         return 4;
     if (ehdr->e_phnum < 1)
         return 5;
-    if (ehdr->e_phentsize != sizeof(Elf_LE32_Phdr))
+    if (ehdr->e_phentsize != sizeof(Elf32_Phdr))
         return 6;
 
     // check for Linux kernels
@@ -378,19 +490,6 @@ int PackLinuxI386::checkEhdr(const Elf_LE32_Ehdr *ehdr) const
 }
 
 
-off_t PackLinuxI386::getbrk(const Elf_LE32_Phdr *phdr, int e_phnum) const
-{
-    off_t brka = 0;
-    for (int j = 0; j < e_phnum; ++phdr, ++j) {
-        if (phdr->PT_LOAD == phdr->p_type) {
-            off_t b = phdr->p_vaddr + phdr->p_memsz;
-            if (b > brka)
-                brka = b;
-        }
-    }
-    return brka;
-}
-
 
 /*************************************************************************
 //
@@ -404,6 +503,7 @@ bool PackLinuxI386::canPack()
     Elf_LE32_Ehdr ehdr;
     unsigned char *buf = ehdr.e_ident;
 
+    fi->seek(0, SEEK_SET);
     fi->readx(&ehdr, sizeof(ehdr));
     fi->seek(0, SEEK_SET);
 
@@ -411,12 +511,58 @@ bool PackLinuxI386::canPack()
     const unsigned l = get_le32(buf);
 
     int elf = checkEhdr(&ehdr);
-    if (elf >= 0)
+    if (elf >= 0) {
-    {
         // NOTE: ELF executables are now handled by p_lx_elf.cpp,
         //   so we only handle them here if force_execve
-        if (elf == 0 && opt->unix.force_execve)
+        if (elf == 0 && opt->o_unix.force_execve) {
             exetype = 1;
+
+            unsigned osabi0 = ehdr.e_ident[Elf32_Ehdr::EI_OSABI];
+            switch (osabi0) {
+            case Elf32_Ehdr::ELFOSABI_LINUX:
+            case Elf32_Ehdr::ELFOSABI_FREEBSD:
+            case Elf32_Ehdr::ELFOSABI_NETBSD:
+            case Elf32_Ehdr::ELFOSABI_OPENBSD:
+                ei_osabi = osabi0;  // Proudly declares its osabi in Ehdr.
+                break;
+            default:
+            unsigned const e_phnum = get_native16(&ehdr.e_phnum);
+            if (e_phnum<=(512/sizeof(Elf32_Phdr))) {
+                char buf2[512];
+                fi->seek(get_native32(&ehdr.e_phoff), SEEK_SET);
+                fi->readx(buf2, sizeof(buf2));
+                fi->seek(0, SEEK_SET);
+                Elf32_Phdr const *phdr = (Elf32_Phdr const *)buf2;
+                for (unsigned j=0; j < e_phnum; ++phdr, ++j) {
+                    if (phdr->PT_NOTE == get_native32(&phdr->p_type)) {
+                        unsigned const offset = get_native32(&phdr->p_offset);
+                        struct Elf32_Note note; memset(&note, 0, sizeof(note));
+                        fi->seek(offset, SEEK_SET);
+                        fi->readx(&note, sizeof(note));
+                        fi->seek(0, SEEK_SET);
+                        if (4==get_native32(&note.descsz)
+                        &&  1==get_native32(&note.type)
+                        &&  0==note.end ) {
+                            if (0==strcmp("NetBSD", (char const *)&note.text)) {
+                                ei_osabi = Elf32_Ehdr::ELFOSABI_NETBSD;
+                                break;
+                            }
+                            if (0==strcmp("OpenBSD", (char const *)&note.text)) {
+                                ei_osabi = Elf32_Ehdr::ELFOSABI_OPENBSD;
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+            }
+        }
+        if (UPX_F_BSD_i386==getFormat()
+        && !(Elf32_Ehdr::ELFOSABI_FREEBSD==ei_osabi
+          || Elf32_Ehdr::ELFOSABI_NETBSD ==ei_osabi
+          || Elf32_Ehdr::ELFOSABI_OPENBSD==ei_osabi )) {
+            return false;
+        }
     }
     else if (l == 0x00640107 || l == 0x00640108 || l == 0x0064010b || l == 0x006400cc)
     {
@@ -425,15 +571,17 @@ bool PackLinuxI386::canPack()
         // FIXME: N_TRSIZE, N_DRSIZE
         // FIXME: check for aout shared libraries
     }
-#if defined(__linux__)
+    else { // shell scripts and other interpreters
-    // only compress scripts when running under Linux
+        if (Elf32_Ehdr::ELFOSABI_LINUX!=ei_osabi) {
-    else if (!memcmp(buf, "#!/", 3))                    // #!/bin/sh
+            return false;  // so far, only Linux has runtime stub for shell
-        exetype = -1;
+        }
-    else if (!memcmp(buf, "#! /", 4))                   // #! /bin/sh
+        else if (!memcmp(buf, "#!/", 3))                    // #!/bin/sh
-        exetype = -1;
+            exetype = -1;
-    else if (!memcmp(buf, "\xca\xfe\xba\xbe", 4))       // Java bytecode
+        else if (!memcmp(buf, "#! /", 4))                   // #! /bin/sh
-        exetype = -2;
+            exetype = -1;
-#endif
+        else if (!memcmp(buf, "\xca\xfe\xba\xbe", 4))       // Java bytecode
+            exetype = -2;
+    }
 
     return super::canPack();
 }
@@ -444,7 +592,7 @@ void PackLinuxI386::patchLoader() { }
 
 void PackLinuxI386::patchLoaderChecksum()
 {
-    unsigned char *const ptr = const_cast<unsigned char *>(getLoader());
+    unsigned char *const ptr = getLoader();
     l_info *const lp = (l_info *)(sizeof(elfout.ehdr) +
         (elfout.ehdr.e_phnum * elfout.ehdr.e_phentsize) + (char *)&elfout );
     // checksum for loader + p_info

src/p_lx_exc.h

@@ -2,8 +2,8 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -21,8 +21,11 @@
    If not, write to the Free Software Foundation, Inc.,
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-   Markus F.X.J. Oberhumer   Laszlo Molnar
+   Markus F.X.J. Oberhumer              Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
  */
 
 
@@ -38,17 +41,18 @@ class PackLinuxI386 : public PackUnixLe32
 {
     typedef PackUnixLe32 super;
 public:
-    PackLinuxI386(InputFile *f) : super(f) { }
+    PackLinuxI386(InputFile *f);
     virtual void generateElfHdr(
         OutputFile *,
         void const *proto,
-        unsigned brka
+        unsigned const brka
     );
     virtual int getFormat() const { return UPX_F_LINUX_i386; }
     virtual const char *getName() const { return "linux/386"; }
+    virtual const char *getFullName(const options_t *) const { return "i386-linux.elf.execve"; }
     virtual const int *getCompressionMethods(int method, int level) const;
     virtual const int *getFilters() const;
-    virtual int buildLoader(const Filter *);
+    virtual void buildLoader(const Filter *);
 
     virtual bool canPack();
 
@@ -59,8 +63,9 @@ protected:
     virtual void pack4(OutputFile *, Filter &);  // append PackHeader
 
     // loader util
+    virtual Linker* newLinker() const;
     virtual int getLoaderPrefixSize() const;
-    virtual int buildLinuxLoader(
+    virtual void buildLinuxLoader(
         upx_byte const *const proto,  // assembly-only sections
         unsigned const szproto,
         upx_byte const *const fold,  // linked assembly + C section
@@ -75,7 +80,6 @@ protected:
 
     // ELF util
     virtual int checkEhdr(const Elf_LE32_Ehdr *ehdr) const;
-    virtual off_t getbrk(const Elf_LE32_Phdr *phdr, int e_phnum) const;
 
     enum {
         UPX_ELF_MAGIC = 0x5850557f          // "\x7fUPX"
@@ -84,31 +88,64 @@ protected:
     unsigned n_mru;
 
     struct cprElfHdr1 {
-        struct Elf_LE32_Ehdr ehdr;
+        Elf_LE32_Ehdr ehdr;
-        struct Elf_LE32_Phdr phdr[1];
+        Elf_LE32_Phdr phdr[1];
-        struct PackUnix::l_info linfo;
+        l_info linfo;
     }
     __attribute_packed;
 
     struct cprElfHdr2 {
-        struct Elf_LE32_Ehdr ehdr;
+        Elf_LE32_Ehdr ehdr;
-        struct Elf_LE32_Phdr phdr[2];
+        Elf_LE32_Phdr phdr[2];
-        struct PackUnix::l_info linfo;
+        l_info linfo;
     }
     __attribute_packed;
 
     struct cprElfHdr3 {
-        struct Elf_LE32_Ehdr ehdr;
+        Elf_LE32_Ehdr ehdr;
-        struct Elf_LE32_Phdr phdr[3];
+        Elf_LE32_Phdr phdr[3];
-        struct PackUnix::l_info linfo;
+        l_info linfo;
     }
     __attribute_packed;
 
     cprElfHdr3 elfout;
 
+    struct Elf32_Note {
+        unsigned namesz;  // 8
+        unsigned descsz;  // 4
+        unsigned type;    // 1
+        char text[0x18 - 4*4];  // "OpenBSD"
+        unsigned end;     // 0
+    } elfnote;
+
+    unsigned char ei_osabi;
+    char const *osabi_note;
+
+    static void compileTimeAssertions() {
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr1) == 52 + 1*32 + 12)
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr2) == 52 + 2*32 + 12)
+        COMPILE_TIME_ASSERT(sizeof(cprElfHdr3) == 52 + 3*32 + 12)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr1)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr2)
+        COMPILE_TIME_ASSERT_ALIGNED1(cprElfHdr3)
+    }
 };
 
 
+class PackBSDI386 : public PackLinuxI386
+{
+    typedef PackLinuxI386 super;
+public:
+    PackBSDI386(InputFile *f);
+    virtual int getFormat() const { return UPX_F_BSD_i386; }
+    virtual const char *getName() const { return "*BSD/386"; }
+    virtual const char *getFullName(const options_t *) const { return "i386-bsd.elf.execve"; }
+
+protected:
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+
+    virtual void buildLoader(const Filter *);
+};
 #endif /* already included */
 
 

src/p_lx_interp.cpp

@@ -0,0 +1,310 @@
+/* p_lx_interp.cpp --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   Copyright (C) 2000-2007 John F. Reiser
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
+ */
+
+
+#include "conf.h"
+
+#include "file.h"
+#include "filter.h"
+#include "linker.h"
+#include "packer.h"
+#include "p_elf.h"
+#include "p_unix.h"
+#include "p_lx_exc.h"
+#include "p_lx_elf.h"
+#include "p_lx_interp.h"
+
+#define PT_LOAD     Elf32_Phdr::PT_LOAD
+#define PT_INTERP   Elf32_Phdr::PT_INTERP
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+static const
+#include "stub/i386-linux.elf.interp-entry.h"
+static const
+#include "stub/i386-linux.elf.interp-fold.h"
+
+PackLinuxElf32x86interp::PackLinuxElf32x86interp(InputFile *f) :
+    super(f)
+{
+}
+
+PackLinuxElf32x86interp::~PackLinuxElf32x86interp()
+{
+}
+
+bool PackLinuxElf32x86interp::canPack()
+{
+    if (opt->o_unix.make_ptinterp) {
+        return true;
+    }
+    if (!opt->o_unix.use_ptinterp) {
+        return false;
+    }
+    return super::canPack();
+}
+
+void PackLinuxElf32x86interp::pack1(OutputFile *fo, Filter &)
+{
+    fi->seek(0, SEEK_SET);
+    fi->readx(&ehdri, sizeof(ehdri));
+    assert(ehdri.e_phoff == sizeof(Elf32_Ehdr));  // checked by canPack()
+    sz_phdrs = ehdri.e_phnum * ehdri.e_phentsize;
+
+    phdri = new Elf32_Phdr[(unsigned)ehdri.e_phnum];
+    fi->seek(ehdri.e_phoff, SEEK_SET);
+    fi->readx(phdri, sz_phdrs);
+
+#define E Elf32_Ehdr
+    cprElfHdr3 h3;
+    memset(&h3, 0, sizeof(h3));
+    memcpy(h3.ehdr.e_ident, "\177ELF", 4);
+    h3.ehdr.e_ident[E::EI_CLASS] = E::ELFCLASS32;
+    h3.ehdr.e_ident[E::EI_DATA] = E::ELFDATA2LSB;
+    h3.ehdr.e_ident[E::EI_VERSION] = E::EV_CURRENT;
+    h3.ehdr.e_ident[E::EI_OSABI] = E::ELFOSABI_LINUX;
+    h3.ehdr.e_ident[E::EI_ABIVERSION] = E::EV_CURRENT;
+    h3.ehdr.e_type = E::ET_EXEC;
+    h3.ehdr.e_machine = E::EM_386;
+    h3.ehdr.e_version = 1;
+    h3.ehdr.e_phoff = sizeof(Elf32_Ehdr);
+    h3.ehdr.e_ehsize = sizeof(Elf32_Ehdr);
+    h3.ehdr.e_phentsize = sizeof(Elf32_Phdr);
+    h3.ehdr.e_phnum = 3;
+    h3.phdr[0].p_type = PT_LOAD;
+    h3.phdr[0].p_flags = Elf32_Phdr::PF_X | Elf32_Phdr::PF_R;
+    h3.phdr[0].p_align = 0x1000;
+    h3.phdr[1].p_type = PT_LOAD;
+    h3.phdr[1].p_flags = Elf32_Phdr::PF_W | Elf32_Phdr::PF_R;
+    h3.phdr[1].p_align = 1;
+    h3.phdr[2].p_type = PT_INTERP;
+    h3.phdr[2].p_offset = (char *)&h3.phdr[2].p_vaddr - (char *)&h3;
+    memcpy(&h3.phdr[2].p_vaddr, "/upxrun", h3.phdr[2].p_filesz = 8);
+    h3.phdr[2].p_align = 1;
+
+    if (opt->o_unix.make_ptinterp) { // unusual "once per release"
+        elfout = h3;
+        elfout.ehdr.e_phnum = 1;
+        fo->write(&elfout, elfout.ehdr.e_ehsize + elfout.ehdr.e_phentsize);
+    }
+    else { // usual case
+        generateElfHdr(fo, &h3, getbrk(phdri, ehdri.e_phnum));
+    }
+#undef E
+}
+
+void PackLinuxElf32x86interp::pack2(OutputFile *fo, Filter &ft)
+{
+    if (opt->o_unix.make_ptinterp) {
+        return;  // ignore current input file!
+    }
+    super::pack2(fo, ft);
+}
+
+#undef PAGE_MASK
+#define PAGE_MASK (~0u<<12)
+
+void PackLinuxElf32x86interp::pack3(OutputFile *fo, Filter &/*ft*/)
+{
+    unsigned base = getbase(phdri, ehdri.e_phnum);
+    unsigned sz = PAGE_MASK & (~PAGE_MASK + elfout.phdr[0].p_filesz);
+    if (base < (0x11000 + sz)) {
+        base =  0x11000 + sz;
+    }
+    if (opt->o_unix.make_ptinterp) {
+        base = 0x10000;
+    }
+    elfout.phdr[0].p_paddr = elfout.phdr[0].p_vaddr = base - sz;
+    if (opt->o_unix.make_ptinterp) {
+        initLoader(stub_i386_linux_elf_interp_entry, sizeof(stub_i386_linux_elf_interp_entry));
+        linker->addSection("FOLDEXEC", stub_i386_linux_elf_interp_fold, sizeof(stub_i386_linux_elf_interp_fold), 0);
+
+        addLoader("LXPTI000", NULL);
+
+        addLoader("LXPTI040", NULL);
+        ph.method = M_NRV2B_LE32; addLoader(getDecompressorSections(), NULL);
+        addLoader("LXPTI090", NULL);
+
+        addLoader("LXPTI041", NULL);
+        ph.method = M_NRV2D_LE32; addLoader(getDecompressorSections(), NULL);
+        addLoader("LXPTI090", NULL);
+
+        addLoader("LXPTI042", NULL);
+        ph.method = M_NRV2E_LE32; addLoader(getDecompressorSections(), NULL);
+        addLoader("LXPTI090", NULL);
+
+        //addLoader("LXPTI043", NULL);
+        //ph.method = M_CL1B_LE32;  addLoader(getDecompressorSections(), NULL);
+        //addLoader("LXPTI090", NULL);
+
+        addLoader("LXPTI091", NULL);
+
+        addLoader("LXPTI140", NULL);
+
+        addLoader("LXUNF002,LXUNF008,LXUNF010", NULL);
+        addFilter32(0x46);
+        addLoader("LXUNF042,LXUNF035", NULL);
+
+        addLoader("LXUNF002,LXUNF008,LXUNF010", NULL);
+        addFilter32(0x49);
+        addLoader("LXUNF042,LXUNF035", NULL);
+
+        addLoader("LXPTI200", NULL);
+        addLoader("FOLDEXEC", NULL);
+        upx_byte const *p = getLoader();
+        lsize = getLoaderSize();
+        updateLoader(fo);
+        fo->write(p, lsize);
+        elfout.phdr[0].p_filesz = fo->getBytesWritten();
+    }
+    else {
+        updateLoader(fo);
+    }
+}
+
+
+void PackLinuxElf32x86interp::unpack(OutputFile *fo)
+{
+#define MAX_INTERP_HDR 512
+    char bufehdr[MAX_INTERP_HDR];
+    Elf32_Ehdr *const ehdr = (Elf32_Ehdr *)bufehdr;
+    Elf32_Phdr const *phdr = (Elf32_Phdr *)(1+ehdr);
+
+    unsigned szb_info = sizeof(b_info);
+    {
+        fi->seek(0, SEEK_SET);
+        fi->readx(bufehdr, MAX_INTERP_HDR);
+        unsigned const e_entry = get_native32(&ehdr->e_entry);
+        if (e_entry < 0x401180) { /* old style, 8-byte b_info */
+            szb_info = 2*sizeof(unsigned);
+        }
+    }
+
+    fi->seek(overlay_offset, SEEK_SET);
+    p_info hbuf;
+    fi->readx(&hbuf, sizeof(hbuf));
+    unsigned orig_file_size = get_native32(&hbuf.p_filesize);
+    blocksize = get_native32(&hbuf.p_blocksize);
+    if (file_size > (off_t)orig_file_size || blocksize > orig_file_size)
+        throwCantUnpack("file header corrupted");
+
+    ibuf.alloc(blocksize + OVERHEAD);
+    b_info bhdr; memset(&bhdr, 0, sizeof(bhdr));
+    fi->readx(&bhdr, szb_info);
+    ph.u_len = get_native32(&bhdr.sz_unc);
+    ph.c_len = get_native32(&bhdr.sz_cpr);
+    ph.filter_cto = bhdr.b_cto8;
+
+    // Uncompress Ehdr and Phdrs.
+    fi->readx(ibuf, ph.c_len);
+    decompress(ibuf, (upx_byte *)ehdr, false);
+
+    unsigned total_in = 0;
+    unsigned total_out = 0;
+    unsigned c_adler = upx_adler32(NULL, 0);
+    unsigned u_adler = upx_adler32(NULL, 0);
+    off_t ptload0hi=0, ptload1lo=0, ptload1sz=0;
+
+    // decompress PT_LOAD
+    bool first_PF_X = true;
+    fi->seek(- (off_t) (szb_info + ph.c_len), SEEK_CUR);
+    for (unsigned j=0; j < ehdr->e_phnum; ++phdr, ++j) {
+        if (PT_LOAD==phdr->p_type) {
+            if (0==ptload0hi) {
+                ptload0hi = phdr->p_filesz + phdr->p_offset;
+            }
+            else if (0==ptload1lo) {
+                ptload1lo = phdr->p_offset;
+                ptload1sz = phdr->p_filesz;
+            }
+            if (fo)
+                fo->seek(phdr->p_offset, SEEK_SET);
+            if (Elf32_Phdr::PF_X & phdr->p_flags) {
+                unpackExtent(phdr->p_filesz, fo, total_in, total_out,
+                    c_adler, u_adler, first_PF_X, szb_info);
+                first_PF_X = false;
+            }
+            else {
+                unpackExtent(phdr->p_filesz, fo, total_in, total_out,
+                    c_adler, u_adler, false, szb_info);
+            }
+        }
+    }
+
+    if (0!=ptload1sz && ptload0hi < ptload1lo) {  // alignment hole?
+        if (fo)
+            fo->seek(ptload0hi, SEEK_SET);
+        unpackExtent(ptload1lo - ptload0hi, fo, total_in, total_out,
+            c_adler, u_adler, false, szb_info);
+    }
+    if (total_out != orig_file_size) {  // non-PT_LOAD stuff
+        if (fo)
+            fo->seek(0, SEEK_END);
+        unpackExtent(orig_file_size - total_out, fo, total_in, total_out,
+            c_adler, u_adler, false, szb_info);
+    }
+
+    // check for end-of-file
+    fi->readx(&bhdr, szb_info);
+    unsigned const sz_unc = ph.u_len = get_native32(&bhdr.sz_unc);
+
+    if (sz_unc == 0) { // uncompressed size 0 -> EOF
+        // note: magic is always stored le32
+        unsigned const sz_cpr = get_le32(&bhdr.sz_cpr);
+        if (sz_cpr != UPX_MAGIC_LE32)  // sz_cpr must be h->magic
+            throwCompressedDataViolation();
+    }
+    else { // extra bytes after end?
+        throwCompressedDataViolation();
+    }
+
+    // update header with totals
+    ph.c_len = total_in;
+    ph.u_len = total_out;
+
+    // all bytes must be written
+    if (total_out != orig_file_size)
+        throwEOFException();
+
+    // finally test the checksums
+    if (ph.c_adler != c_adler || ph.u_adler != u_adler)
+        throwChecksumError();
+#undef MAX_INTERP_HDR
+}
+
+
+/*
+vi:ts=4:et
+*/
+

src/p_lx_interp.h

@@ -0,0 +1,68 @@
+/* p_lx_interp.h --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Laszlo Molnar
+   Copyright (C) 2000-2007 John F. Reiser
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer              Laszlo Molnar
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
+ */
+
+
+#ifndef __UPX_P_LX_INTERP_H  //{
+#define __UPX_P_LX_INTERP_H
+
+
+/*************************************************************************
+// linux/interp386
+**************************************************************************/
+
+class PackLinuxElf32x86interp : public PackLinuxElf32x86
+{
+    typedef PackLinuxElf32x86 super;
+public:
+    PackLinuxElf32x86interp(InputFile *f);
+    virtual ~PackLinuxElf32x86interp();
+    virtual int getVersion() const { return 13; }
+    virtual int getFormat() const { return UPX_F_LINUX_ELFI_i386; }
+    virtual const char *getName() const { return "linux/elfi386"; }
+    virtual const char *getFullName(const options_t *) const { return "i386-linux.elf.interp"; }
+
+    virtual bool canPack();
+    virtual void unpack(OutputFile *fo);
+
+protected:
+    virtual void pack1(OutputFile *, Filter &);  // generate executable header
+    virtual void pack2(OutputFile *, Filter &);  // append compressed data
+    virtual void pack3(OutputFile *, Filter &);  // build loader
+};
+
+
+#endif /*} already included */
+
+
+/*
+vi:ts=4:et
+*/
+

src/p_lx_sep.cpp

@@ -1,91 +0,0 @@
-/* p_lx_sep.cpp --
-
-   This file is part of the UPX executable compressor.
-
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
-   All Rights Reserved.
-
-   UPX and the UCL library are free software; you can redistribute them
-   and/or modify them under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2 of
-   the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation, Inc.,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-   Markus F.X.J. Oberhumer   Laszlo Molnar           John F. Reiser
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu   jreiser@BitWagon.com
- */
-
-
-#include "conf.h"
-
-#include "file.h"
-#include "packer.h"
-#include "p_elf.h"
-#include "p_unix.h"
-#include "p_lx_exc.h"
-#include "p_lx_elf.h"
-#include "p_lx_sep.h"
-
-
-/*************************************************************************
-//
-**************************************************************************/
-
-//#define SCRIPT_SIZE     (opt->unix.SCRIPT_MAX + sizeof(l_info))
-#define SCRIPT_SIZE     (32 + sizeof(l_info))
-
-const upx_byte *PackLinuxI386sep::getLoader() const
-{
-    static char script[SCRIPT_SIZE];
-
-    memset(script, 0, sizeof(script));
-    char const *name = opt->unix.script_name;
-    if (0==name) {
-        name = "/usr/local/lib/upxX";
-    }
-    upx_snprintf(script, sizeof(script), "#!%s\n", name);
-    if (M_IS_NRV2B(ph.method)) {
-        script[strlen(script)-2] = 'b';
-        return (upx_byte const *)script;
-    }
-    if (M_IS_NRV2D(ph.method)) {
-        script[strlen(script)-2] = 'd';
-        return (upx_byte const *)script;
-    }
-    return NULL;
-}
-
-int PackLinuxI386sep::getLoaderSize() const
-{
-    if (M_IS_NRV2B(ph.method))
-        return SCRIPT_SIZE;
-    if (M_IS_NRV2D(ph.method))
-        return SCRIPT_SIZE;
-    return 0;
-}
-
-int PackLinuxI386sep::getLoaderPrefixSize() const
-{
-    return opt->unix.SCRIPT_MAX;
-}
-
-void PackLinuxI386sep::patchLoader()
-{
-    patchLoaderChecksum();
-}
-
-/*
-vi:ts=4:et
-*/
-

src/p_lx_sep.h

@@ -1,61 +0,0 @@
-/* p_lx_sep.h --
-
-   This file is part of the UPX executable compressor.
-
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
-   All Rights Reserved.
-
-   UPX and the UCL library are free software; you can redistribute them
-   and/or modify them under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2 of
-   the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation, Inc.,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-   Markus F.X.J. Oberhumer   Laszlo Molnar           John F. Reiser
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu   jreiser@BitWagon.com
- */
-
-
-#ifndef __UPX_P_LX_SEP_H  //{
-#define __UPX_P_LX_SEP_H
-
-
-/*************************************************************************
-// linux/sep386
-**************************************************************************/
-
-class PackLinuxI386sep : public PackLinuxI386elf
-{
-    typedef PackLinuxI386elf super;
-public:
-    PackLinuxI386sep(InputFile *f) : super(f) { }
-    virtual int getFormat() const { return UPX_F_LINUX_SEP_i386; }
-    virtual const char *getName() const { return "linux/sep386"; }
-
-protected:
-    virtual const upx_byte *getLoader() const;
-    virtual int getLoaderSize() const;
-    virtual int getLoaderPrefixSize() const;
-
-    virtual void patchLoader();
-    virtual void updateLoader(OutputFile *) {}
-};
-
-
-#endif /*} already included */
-
-/*
-vi:ts=4:et
-*/
-

src/p_lx_sh.cpp

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
+   Copyright (C) 2000-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,8 +22,11 @@
    If not, write to the Free Software Foundation, Inc.,
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-   Markus F.X.J. Oberhumer   Laszlo Molnar           John F. Reiser
+   Markus F.X.J. Oberhumer              Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu   jreiser@BitWagon.com
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
  */
 
 
@@ -45,9 +48,9 @@
 **************************************************************************/
 
 static const
-#include "stub/l_lx_sh86.h"
+#include "stub/i386-linux.elf.shell-entry.h"
 static const
-#include "stub/fold_sh86.h"
+#include "stub/i386-linux.elf.shell-fold.h"
 
 
 PackLinuxI386sh::PackLinuxI386sh(InputFile *f) :
@@ -59,12 +62,21 @@ PackLinuxI386sh::~PackLinuxI386sh()
 {
 }
 
-int
+static unsigned
+umax(unsigned a, unsigned b)
+{
+    if (a <= b) {
+        return b;
+    }
+    return a;
+}
+
+void
 PackLinuxI386sh::buildLoader(Filter const *ft)
 {
-    unsigned const sz_fold = sizeof(linux_i386sh_fold);
+    unsigned const sz_fold = sizeof(stub_i386_linux_elf_shell_fold);
     MemBuffer buf(sz_fold);
-    memcpy(buf, linux_i386sh_fold, sz_fold);
+    memcpy(buf, stub_i386_linux_elf_shell_fold, sz_fold);
 
     checkPatch(NULL, 0, 0, 0);  // reset
     patch_le32(buf,sz_fold,"UPX3",l_shname);
@@ -73,16 +85,22 @@ PackLinuxI386sh::buildLoader(Filter const *ft)
     // get fresh filter
     Filter fold_ft = *ft;
     fold_ft.init(ft->id, ft->addvalue);
-    int preferred_ctos[2] = {ft->cto, -1};
+    int preferred_ctos[2] = { ft->cto, -1 };
     fold_ft.preferred_ctos = preferred_ctos;
 
     // filter
     optimizeFilter(&fold_ft, buf, sz_fold);
-    bool success = fold_ft.filter(buf + sizeof(cprElfHdr2), sz_fold - sizeof(cprElfHdr2));
+    unsigned fold_hdrlen = sizeof(l_info) + sizeof(Elf32_Ehdr) +
+        sizeof(Elf32_Phdr) * get_native32(&((Elf32_Ehdr const *)(void *)buf)->e_phnum);
+    if (0 == get_le32(fold_hdrlen + buf)) {
+        // inconsistent SIZEOF_HEADERS in *.lds (ld, binutils)
+        fold_hdrlen = umax(0x80, fold_hdrlen);
+    }
+    bool success = fold_ft.filter(buf + fold_hdrlen, sz_fold - fold_hdrlen);
     UNUSED(success);
 
-    return buildLinuxLoader(
+    buildLinuxLoader(
-        linux_i386sh_loader, sizeof(linux_i386sh_loader),
+        stub_i386_linux_elf_shell_entry, sizeof(stub_i386_linux_elf_shell_entry),
         buf, sz_fold, ft );
 }
 
@@ -92,11 +110,11 @@ void PackLinuxI386sh::patchLoader() { }
 bool PackLinuxI386sh::getShellName(char *buf)
 {
     exetype = -1;
-    l_shname = strcspn(buf, " \t\n\v\f\r");
+    l_shname = (int) strcspn(buf, " \t\n\v\f\r");
     buf[l_shname] = 0;
     static char const *const shname[] = { // known shells that accept "-c" arg
         "ash", "bash", "bsh", "csh", "ksh", "pdksh", "sh", "tcsh", "zsh",
-        //"python", // FIXME: does python work ???
+        "python",
         NULL
     };
     const char *bname = strrchr(buf, '/');
@@ -104,7 +122,11 @@ bool PackLinuxI386sh::getShellName(char *buf)
         return false;
     for (int j = 0; NULL != shname[j]; ++j) {
         if (0 == strcmp(shname[j], bname + 1)) {
-            return super::canPack();
+            bool const s = super::canPack();
+            if (s) {
+                opt->o_unix.blocksize = blocksize = file_size;
+            }
+            return s;
         }
     }
     return false;
@@ -136,7 +158,14 @@ bool PackLinuxI386sh::canPack()
 void
 PackLinuxI386sh::pack1(OutputFile *fo, Filter &)
 {
-    generateElfHdr(fo, linux_i386sh_fold, 0x08048000);
+    generateElfHdr(fo, stub_i386_linux_elf_shell_fold, 0x08048000);
+}
+
+void
+PackLinuxI386sh::pack3(OutputFile *fo, Filter &ft)
+{
+    super::pack3(fo,ft);
+    elfout.phdr[0].p_filesz = fo->getBytesWritten();
 }
 
 /*

src/p_lx_sh.h

@@ -2,9 +2,9 @@
 
    This file is part of the UPX executable compressor.
 
-   Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2007 Markus Franz Xaver Johannes Oberhumer
-   Copyright (C) 1996-2002 Laszlo Molnar
+   Copyright (C) 1996-2007 Laszlo Molnar
-   Copyright (C) 2000-2002 John F. Reiser
+   Copyright (C) 2000-2007 John F. Reiser
    All Rights Reserved.
 
    UPX and the UCL library are free software; you can redistribute them
@@ -22,8 +22,11 @@
    If not, write to the Free Software Foundation, Inc.,
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-   Markus F.X.J. Oberhumer   Laszlo Molnar           John F. Reiser
+   Markus F.X.J. Oberhumer              Laszlo Molnar
-   markus@oberhumer.com      ml1050@cdata.tvnet.hu   jreiser@BitWagon.com
+   <mfx@users.sourceforge.net>          <ml1050@users.sourceforge.net>
+
+   John F. Reiser
+   <jreiser@users.sourceforge.net>
  */
 
 
@@ -44,10 +47,12 @@ public:
     virtual int getVersion() const { return 13; }
     virtual int getFormat() const { return UPX_F_LINUX_SH_i386; }
     virtual const char *getName() const { return "linux/sh386"; }
+    virtual const char *getFullName(const options_t *) const { return "i386-linux.elf.shell"; }
     virtual const int *getFilters() const { return NULL; }
-    virtual int buildLoader(const Filter *);
+    virtual void buildLoader(const Filter *);
 
     virtual void pack1(OutputFile *fo, Filter &ft);
+    virtual void pack3(OutputFile *fo, Filter &ft);
 
     virtual bool canPack();
     // virtual void unpack(OutputFile *fo) { super::unpack(fo); }

src/p_mach.cpp

@@ -0,0 +1,832 @@
+/* p_mach.cpp -- pack Mach Object executable
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 2004-2007 John Reiser
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   John Reiser
+   jreiser@users.sourceforge.net
+ */
+
+
+#include "conf.h"
+
+#include "file.h"
+#include "filter.h"
+#include "linker.h"
+#include "packer.h"
+#include "p_mach.h"
+#include "ui.h"
+
+static const
+#include "stub/powerpc-darwin.macho-entry.h"
+static const
+#include "stub/powerpc-darwin.macho-fold.h"
+
+static const
+#include "stub/i386-darwin.macho-entry.h"
+static const
+#include "stub/i386-darwin.macho-fold.h"
+
+template <class T>
+PackMachBase<T>::PackMachBase(InputFile *f, unsigned cputype, unsigned flavor,
+        unsigned count, unsigned size) :
+    super(f), my_cputype(cputype), my_thread_flavor(flavor),
+    my_thread_state_word_count(count), my_thread_command_size(size),
+    n_segment(0), rawmseg(NULL), msegcmd(NULL)
+{
+    MachClass::compileTimeAssertions();
+    bele = N_BELE_CTP::getRTP<BeLePolicy>();
+}
+
+template <class T>
+PackMachBase<T>::~PackMachBase()
+{
+    delete [] rawmseg;
+    delete [] msegcmd;
+}
+
+template <class T>
+const int *PackMachBase<T>::getCompressionMethods(int method, int level) const
+{
+    // There really is no LE bias.
+    return Packer::getDefaultCompressionMethods_le32(method, level);
+}
+
+
+const int *PackMachPPC32::getFilters() const
+{
+    static const int filters[] = { 0xd0, FT_END };
+    return filters;
+}
+
+int const *PackMachI386::getFilters() const
+{
+    static const int filters[] = { 0x49, FT_END };
+    return filters;
+}
+
+Linker *PackMachPPC32::newLinker() const
+{
+    return new ElfLinkerPpc32;
+}
+
+Linker *PackMachI386::newLinker() const
+{
+    return new ElfLinkerX86;
+}
+
+template <class T>
+void
+PackMachBase<T>::addStubEntrySections(Filter const *)
+{
+    addLoader("MACOS000", NULL);
+   //addLoader(getDecompressorSections(), NULL);
+    addLoader(
+        ( M_IS_NRV2E(ph.method) ? "NRV_HEAD,NRV2E,NRV_TAIL"
+        : M_IS_NRV2D(ph.method) ? "NRV_HEAD,NRV2D,NRV_TAIL"
+        : M_IS_NRV2B(ph.method) ? "NRV_HEAD,NRV2B,NRV_TAIL"
+        : M_IS_LZMA(ph.method)  ? "LZMA_ELF00,LZMA_DEC20,LZMA_DEC30"
+        : NULL), NULL);
+    addLoader("ELFMAINY,IDENTSTR,+40,ELFMAINZ,FOLDEXEC", NULL);
+}
+
+void PackMachI386::addStubEntrySections(Filter const *ft)
+{
+    int const n_mru = ft->n_mru;  // FIXME: belongs to filter? packerf?
+
+            // entry to stub
+    addLoader("LEXEC000", NULL);
+
+    if (ft->id) {
+        { // decompr, unfilter are separate
+            addLoader("LXUNF000", NULL);
+            addLoader("LXUNF002", NULL);
+                if (0x80==(ft->id & 0xF0)) {
+                    if (256==n_mru) {
+                        addLoader("MRUBYTE0", NULL);
+                    }
+                    else if (n_mru) {
+                        addLoader("LXMRU005", NULL);
+                    }
+                    if (n_mru) {
+                        addLoader("LXMRU006", NULL);
+                    }
+                    else {
+                        addLoader("LXMRU007", NULL);
+                    }
+            }
+            else if (0x40==(ft->id & 0xF0)) {
+                addLoader("LXUNF008", NULL);
+            }
+            addLoader("LXUNF010", NULL);
+        }
+        if (n_mru) {
+            addLoader("LEXEC009", NULL);
+        }
+    }
+    addLoader("LEXEC010", NULL);
+    addLoader(getDecompressorSections(), NULL);
+    addLoader("LEXEC015", NULL);
+    if (ft->id) {
+        {  // decompr, unfilter are separate
+            if (0x80!=(ft->id & 0xF0)) {
+                addLoader("LXUNF042", NULL);
+            }
+        }
+        addFilter32(ft->id);
+        { // decompr, unfilter are separate
+            if (0x80==(ft->id & 0xF0)) {
+                if (0==n_mru) {
+                    addLoader("LXMRU058", NULL);
+                }
+            }
+            addLoader("LXUNF035", NULL);
+        }
+    }
+    else {
+        addLoader("LEXEC017", NULL);
+    }
+
+    addLoader("IDENTSTR", NULL);
+    addLoader("LEXEC020", NULL);
+    addLoader("FOLDEXEC", NULL);
+}
+
+
+template <class T>
+void PackMachBase<T>::defineSymbols(Filter const *)
+{
+    // empty
+}
+
+
+template <class T>
+void
+PackMachBase<T>::buildMachLoader(
+    upx_byte const *const proto,
+    unsigned        const szproto,
+    upx_byte const *const fold,
+    unsigned        const szfold,
+    Filter const *ft
+)
+{
+    initLoader(proto, szproto);
+
+    struct b_info h; memset(&h, 0, sizeof(h));
+    unsigned fold_hdrlen = 0;
+  if (0 < szfold) {
+    h.sz_unc = (szfold < fold_hdrlen) ? 0 : (szfold - fold_hdrlen);
+    h.b_method = (unsigned char) ph.method;
+    h.b_ftid = (unsigned char) ph.filter;
+    h.b_cto8 = (unsigned char) ph.filter_cto;
+  }
+    unsigned char const *const uncLoader = fold_hdrlen + fold;
+
+    unsigned char *const cprLoader = new unsigned char[sizeof(h) + h.sz_unc];
+  if (0 < szfold) {
+    unsigned sz_cpr = 0;
+    int r = upx_compress(uncLoader, h.sz_unc, sizeof(h) + cprLoader, &sz_cpr,
+        NULL, ph.method, 10, NULL, NULL );
+    h.sz_cpr = sz_cpr;
+    if (r != UPX_E_OK || h.sz_cpr >= h.sz_unc)
+        throwInternalError("loader compression failed");
+  }
+    memcpy(cprLoader, &h, sizeof(h));
+
+    // This adds the definition to the "library", to be used later.
+    linker->addSection("FOLDEXEC", cprLoader, sizeof(h) + h.sz_cpr, 0);
+    delete [] cprLoader;
+
+    int const GAP = 128;  // must match stub/l_mac_ppc.S
+    segcmdo.vmsize += h.sz_unc - h.sz_cpr + GAP + 64;
+
+    addStubEntrySections(ft);
+
+    defineSymbols(ft);
+    relocateLoader();
+}
+
+void
+PackMachPPC32::buildLoader(const Filter *ft)
+{
+    buildMachLoader(
+        stub_powerpc_darwin_macho_entry, sizeof(stub_powerpc_darwin_macho_entry),
+        stub_powerpc_darwin_macho_fold,  sizeof(stub_powerpc_darwin_macho_fold),  ft );
+}
+
+void
+PackMachI386::buildLoader(const Filter *ft)
+{
+    buildMachLoader(
+        stub_i386_darwin_macho_entry, sizeof(stub_i386_darwin_macho_entry),
+        stub_i386_darwin_macho_fold,  sizeof(stub_i386_darwin_macho_fold),  ft );
+}
+
+template <class T>
+void PackMachBase<T>::patchLoader() { }
+
+template <class T>
+void PackMachBase<T>::updateLoader(OutputFile *) {}
+
+template <class T>
+void PackMachBase<T>::patchLoaderChecksum()
+{
+    unsigned char *const ptr = getLoader();
+    l_info *const lp = &linfo;
+    // checksum for loader; also some PackHeader info
+    lp->l_checksum = 0;
+    lp->l_magic = UPX_MAGIC_LE32;  // LE32 always
+    lp->l_lsize = (unsigned short) lsize;
+    lp->l_version = (unsigned char) ph.version;
+    lp->l_format  = (unsigned char) ph.format;
+    // INFO: lp->l_checksum is currently unused
+    lp->l_checksum = upx_adler32(ptr, lsize);
+}
+
+template <class T>
+int __acc_cdecl_qsort
+PackMachBase<T>::compare_segment_command(void const *const aa, void const *const bb)
+{
+    Mach_segment_command const *const a = (Mach_segment_command const *)aa;
+    Mach_segment_command const *const b = (Mach_segment_command const *)bb;
+    unsigned const xa = a->cmd - Mach_segment_command::LC_SEGMENT;
+    unsigned const xb = b->cmd - Mach_segment_command::LC_SEGMENT;
+           if (xa < xb)        return -1;  // LC_SEGMENT first
+           if (xa > xb)        return  1;
+    if (a->vmaddr < b->vmaddr) return -1;  // ascending by .vmaddr
+    if (a->vmaddr > b->vmaddr) return  1;
+                               return  0;
+}
+
+void PackMachPPC32::pack4(OutputFile *fo, Filter &ft)  // append PackHeader
+{
+    // offset of p_info in compressed file
+    overlay_offset = sizeof(mhdro) + sizeof(segcmdo) + sizeof(threado) + sizeof(linfo);
+
+    super::pack4(fo, ft);
+    segcmdo.filesize = fo->getBytesWritten();
+    segcmdo.vmsize += segcmdo.filesize;
+    fo->seek(sizeof(mhdro), SEEK_SET);
+    fo->rewrite(&segcmdo, sizeof(segcmdo));
+    fo->rewrite(&threado, sizeof(threado));
+    fo->rewrite(&linfo, sizeof(linfo));
+}
+
+void PackMachI386::pack4(OutputFile *fo, Filter &ft)  // append PackHeader
+{
+    // offset of p_info in compressed file
+    overlay_offset = sizeof(mhdro) + sizeof(segcmdo) + sizeof(threado) + sizeof(linfo);
+
+    super::pack4(fo, ft);
+    segcmdo.filesize = fo->getBytesWritten();
+    segcmdo.vmsize += segcmdo.filesize;
+    fo->seek(sizeof(mhdro), SEEK_SET);
+    fo->rewrite(&segcmdo, sizeof(segcmdo));
+    fo->rewrite(&threado, sizeof(threado));
+    fo->rewrite(&linfo, sizeof(linfo));
+}
+
+void PackMachPPC32::pack3(OutputFile *fo, Filter &ft)  // append loader
+{
+    BE32 disp;
+    unsigned const zero = 0;
+    unsigned len = fo->getBytesWritten();
+    fo->write(&zero, 3& (0u-len));
+    len += (3& (0u-len)) + sizeof(disp);
+    disp = 4+ len - sz_mach_headers;  // 4: sizeof(instruction)
+    fo->write(&disp, sizeof(disp));
+
+    threado.state.srr0 = len + segcmdo.vmaddr;  /* entry address */
+    super::pack3(fo, ft);
+}
+
+void PackMachI386::pack3(OutputFile *fo, Filter &ft)  // append loader
+{
+    LE32 disp;
+    unsigned const zero = 0;
+    unsigned len = fo->getBytesWritten();
+    fo->write(&zero, 3& (0u-len));
+    len += (3& (0u-len));
+    disp = len - sz_mach_headers;
+    fo->write(&disp, sizeof(disp));
+
+    threado.state.eip = len + sizeof(disp) + segcmdo.vmaddr;  /* entry address */
+    super::pack3(fo, ft);
+}
+
+// Determine length of gap between PT_LOAD phdri[k] and closest PT_LOAD
+// which follows in the file (or end-of-file).  Optimize for common case
+// where the PT_LOAD are adjacent ascending by .p_offset.  Assume no overlap.
+
+template <class T>
+unsigned PackMachBase<T>::find_SEGMENT_gap(
+    unsigned const k
+)
+{
+    if (Mach_segment_command::LC_SEGMENT!=msegcmd[k].cmd
+    ||  0==msegcmd[k].filesize ) {
+        return 0;
+    }
+    unsigned const hi = msegcmd[k].fileoff + msegcmd[k].filesize;
+    unsigned lo = ph.u_file_size;
+    unsigned j = k;
+    for (;;) { // circular search, optimize for adjacent ascending
+        ++j;
+        if (n_segment==j) {
+            j = 0;
+        }
+        if (k==j) {
+            break;
+        }
+        if (Mach_segment_command::LC_SEGMENT==msegcmd[j].cmd
+        &&  0!=msegcmd[j].filesize ) {
+            unsigned const t = msegcmd[j].fileoff;
+            if ((t - hi) < (lo - hi)) {
+                lo = t;
+                if (hi==lo) {
+                    break;
+                }
+            }
+        }
+    }
+    return lo - hi;
+}
+
+template <class T>
+void PackMachBase<T>::pack4(OutputFile *fo, Filter &ft)
+{
+    PackUnix::pack4(fo, ft);  // FIXME  super() does not work?
+}
+
+template <class T>
+void PackMachBase<T>::pack3(OutputFile *fo, Filter &ft)
+{
+    PackUnix::pack3(fo, ft);  // FIXME  super() does not work?
+}
+
+template <class T>
+void PackMachBase<T>::pack2(OutputFile *fo, Filter &ft)  // append compressed body
+{
+    Extent x;
+    unsigned k;
+
+    // count passes, set ptload vars
+    uip->ui_total_passes = 0;
+    for (k = 0; k < n_segment; ++k) {
+        if (Mach_segment_command::LC_SEGMENT==msegcmd[k].cmd
+        &&  0!=msegcmd[k].filesize ) {
+            uip->ui_total_passes++;
+            if (find_SEGMENT_gap(k)) {
+                uip->ui_total_passes++;
+            }
+        }
+    }
+
+    // compress extents
+    unsigned total_in = 0;
+    unsigned total_out = 0;
+
+    unsigned hdr_u_len = mhdri.sizeofcmds;
+
+    uip->ui_pass = 0;
+    ft.addvalue = 0;
+
+    // Packer::compressWithFilters chooses a filter for us, and the stubs
+    // can handle only one filter, and most filters are for executable
+    // instructions.  So filter only the largest executable segment.
+    unsigned exe_filesize_max = 0;
+    for (k = 0; k < n_segment; ++k)
+    if (Mach_segment_command::LC_SEGMENT==msegcmd[k].cmd
+    &&  0!=(Mach_segment_command::VM_PROT_EXECUTE & msegcmd[k].initprot)
+    &&  exe_filesize_max < msegcmd[k].filesize) {
+        exe_filesize_max = msegcmd[k].filesize;
+    }
+
+    int nx = 0;
+    for (k = 0; k < n_segment; ++k)
+    if (Mach_segment_command::LC_SEGMENT==msegcmd[k].cmd
+    &&  0!=msegcmd[k].filesize ) {
+        x.offset = msegcmd[k].fileoff;
+        x.size   = msegcmd[k].filesize;
+        if (0 == nx) { // 1st LC_SEGMENT must cover Mach_header at 0==fileoffset
+            unsigned const delta = mhdri.sizeofcmds;
+            x.offset    += delta;
+            x.size      -= delta;
+        }
+        bool const do_filter = (msegcmd[k].filesize==exe_filesize_max)
+            && 0!=(Mach_segment_command::VM_PROT_EXECUTE & msegcmd[k].initprot);
+        packExtent(x, total_in, total_out,
+            (do_filter ? &ft : 0 ), fo, hdr_u_len );
+        if (do_filter) {
+            exe_filesize_max = 0;
+        }
+        hdr_u_len = 0;
+        ++nx;
+    }
+    for (k = 0; k < n_segment; ++k) {
+        x.size = find_SEGMENT_gap(k);
+        if (x.size) {
+            x.offset = msegcmd[k].fileoff +msegcmd[k].filesize;
+            packExtent(x, total_in, total_out, 0, fo);
+        }
+    }
+
+    if ((off_t)total_in != file_size)
+        throwEOFException();
+    segcmdo.filesize = fo->getBytesWritten();
+}
+
+#undef PAGE_MASK
+#undef PAGE_SIZE
+#define PAGE_MASK (~0u<<12)
+#define PAGE_SIZE -PAGE_MASK
+
+void PackMachPPC32::pack1_setup_threado(OutputFile *const fo)
+{
+    threado.cmd = Mach_segment_command::LC_UNIXTHREAD;
+    threado.cmdsize = sizeof(threado);
+    threado.flavor = my_thread_flavor;
+    threado.count =  my_thread_state_word_count;
+    memset(&threado.state, 0, sizeof(threado.state));
+    fo->write(&threado, sizeof(threado));
+}
+
+void PackMachI386::pack1_setup_threado(OutputFile *const fo)
+{
+    threado.cmd = Mach_segment_command::LC_UNIXTHREAD;
+    threado.cmdsize = sizeof(threado);
+    threado.flavor = my_thread_flavor;
+    threado.count =  my_thread_state_word_count;
+    memset(&threado.state, 0, sizeof(threado.state));
+    fo->write(&threado, sizeof(threado));
+}
+
+template <class T>
+void PackMachBase<T>::pack1(OutputFile *const fo, Filter &/*ft*/)  // generate executable header
+{
+    mhdro = mhdri;
+    mhdro.ncmds = 2;
+    mhdro.sizeofcmds = sizeof(segcmdo) + my_thread_command_size;
+    mhdro.flags = Mach_header::MH_NOUNDEFS;
+    fo->write(&mhdro, sizeof(mhdro));
+
+    segcmdo.cmd = Mach_segment_command::LC_SEGMENT;
+    segcmdo.cmdsize = sizeof(segcmdo);
+    strncpy((char *)&segcmdo.segname, "__TEXT", sizeof(segcmdo.segname));
+    segcmdo.vmaddr = PAGE_MASK & (~PAGE_MASK +
+        msegcmd[n_segment -1].vmsize + msegcmd[n_segment -1].vmaddr );
+    segcmdo.vmsize = 0;    // adjust later
+    segcmdo.fileoff = 0;
+    segcmdo.filesize = 0;  // adjust later
+    segcmdo.initprot = segcmdo.maxprot =
+        Mach_segment_command::VM_PROT_READ |
+        Mach_segment_command::VM_PROT_WRITE |
+        Mach_segment_command::VM_PROT_EXECUTE;
+    segcmdo.nsects = 0;
+    segcmdo.flags = 0;
+    fo->write(&segcmdo, sizeof(segcmdo));
+
+    pack1_setup_threado(fo);
+    sz_mach_headers = fo->getBytesWritten();
+
+    memset((char *)&linfo, 0, sizeof(linfo));
+    fo->write(&linfo, sizeof(linfo));
+
+    return;
+}
+
+template <class T>
+void PackMachBase<T>::unpack(OutputFile *fo)
+{
+    overlay_offset = sizeof(mhdro) + sizeof(segcmdo) +
+        my_thread_command_size + sizeof(linfo);
+    fi->seek(overlay_offset, SEEK_SET);
+    p_info hbuf;
+    fi->readx(&hbuf, sizeof(hbuf));
+    unsigned orig_file_size = get_native32(&hbuf.p_filesize);
+    blocksize = get_native32(&hbuf.p_blocksize);
+    if (file_size > (off_t)orig_file_size || blocksize > orig_file_size)
+        throwCantUnpack("file header corrupted");
+
+    ibuf.alloc(blocksize + OVERHEAD);
+    b_info bhdr; memset(&bhdr, 0, sizeof(bhdr));
+    fi->readx(&bhdr, sizeof(bhdr));
+    ph.u_len = get_native32(&bhdr.sz_unc);
+    ph.c_len = get_native32(&bhdr.sz_cpr);
+    ph.method = bhdr.b_method;
+    ph.filter = bhdr.b_ftid;
+    ph.filter_cto = bhdr.b_cto8;
+
+    // Uncompress Macho headers
+    fi->readx(ibuf, ph.c_len);
+    Mach_header *const mhdr = (Mach_header *)new upx_byte[ph.u_len];
+    decompress(ibuf, (upx_byte *)mhdr, false);
+    unsigned const ncmds = mhdr->ncmds;
+
+    msegcmd = new Mach_segment_command[ncmds];
+    unsigned char *ptr = (unsigned char *)(1+mhdr);
+    for (unsigned j= 0; j < ncmds; ++j) {
+        msegcmd[j] = *(Mach_segment_command *)ptr;
+        ptr += (unsigned) ((Mach_segment_command *)ptr)->cmdsize;
+    }
+
+    // Put LC_SEGMENT together at the beginning, ascending by .vmaddr.
+    qsort(msegcmd, ncmds, sizeof(*msegcmd), compare_segment_command);
+    n_segment = 0;
+    for (unsigned j= 0; j < ncmds; ++j) {
+        n_segment += (Mach_segment_command::LC_SEGMENT==msegcmd[j].cmd);
+    }
+
+    unsigned total_in = 0;
+    unsigned total_out = 0;
+    unsigned c_adler = upx_adler32(NULL, 0);
+    unsigned u_adler = upx_adler32(NULL, 0);
+    Mach_segment_command const *sc = (Mach_segment_command const *)(1+ mhdr);
+    unsigned k;
+
+    fi->seek(- (off_t)(sizeof(bhdr) + ph.c_len), SEEK_CUR);
+    for (
+        k = 0;
+        k < ncmds;
+        (++k), (sc = (Mach_segment_command const *)(sc->cmdsize + (char const *)sc))
+    ) {
+        if (Mach_segment_command::LC_SEGMENT==sc->cmd
+        &&  0!=sc->filesize ) {
+            unsigned filesize = sc->filesize;
+            unpackExtent(filesize, fo, total_in, total_out, c_adler, u_adler, false, sizeof(bhdr));
+        }
+    }
+    for (unsigned j = 0; j < ncmds; ++j) {
+        unsigned const size = find_SEGMENT_gap(j);
+        if (size) {
+            unsigned const where = msegcmd[k].fileoff +msegcmd[k].filesize;
+            if (fo)
+                fo->seek(where, SEEK_SET);
+            unpackExtent(size, fo, total_in, total_out,
+                c_adler, u_adler, false, sizeof(bhdr));
+        }
+    }
+}
+
+
+template <class T>
+bool PackMachBase<T>::canPack()
+{
+    fi->seek(0, SEEK_SET);
+    fi->readx(&mhdri, sizeof(mhdri));
+
+    if (Mach_header::MH_MAGIC         !=mhdri.magic
+    ||  my_cputype                    !=mhdri.cputype
+    ||  Mach_header::MH_EXECUTE       !=mhdri.filetype
+    )
+        return false;
+
+    rawmseg = (Mach_segment_command *)new char[mhdri.sizeofcmds];
+    fi->readx(rawmseg, mhdri.sizeofcmds);
+
+    msegcmd = new Mach_segment_command[mhdri.ncmds];
+    unsigned char *ptr = (unsigned char *)rawmseg;
+    for (unsigned j= 0; j < mhdri.ncmds; ++j) {
+        msegcmd[j] = *(Mach_segment_command *)ptr;
+        ptr += (unsigned) ((Mach_segment_command *)ptr)->cmdsize;
+    }
+
+
+    // Put LC_SEGMENT together at the beginning, ascending by .vmaddr.
+    qsort(msegcmd, mhdri.ncmds, sizeof(*msegcmd), compare_segment_command);
+
+    // Check that LC_SEGMENTs form one contiguous chunk of the file.
+    for (unsigned j= 0; j < mhdri.ncmds; ++j) {
+        if (Mach_segment_command::LC_SEGMENT==msegcmd[j].cmd) {
+            if (0xfff & (msegcmd[j].fileoff | msegcmd[j].vmaddr)) {
+                return false;
+            }
+            if (0 < j) {
+                unsigned const sz = ~0xfff
+                                  & (0xfff + msegcmd[j-1].filesize);
+                if ((sz + msegcmd[j-1].fileoff)!=msegcmd[j].fileoff) {
+                    return false;
+                }
+            }
+            ++n_segment;
+            sz_segment = msegcmd[j].filesize + msegcmd[j].fileoff - msegcmd[0].fileoff;
+        }
+    }
+
+    // info: currently the header is 36 (32+4) bytes before EOF
+    unsigned char buf[256];
+    fi->seek(-(off_t)sizeof(buf), SEEK_END);
+    fi->readx(buf, sizeof(buf));
+    checkAlreadyPacked(buf, sizeof(buf));
+
+    // set options
+    opt->o_unix.blocksize = file_size;
+    return 0 < n_segment;
+}
+
+template class PackMachBase<MachClass_BE32>;
+template class PackMachBase<MachClass_LE32>;
+
+
+PackMachFat::PackMachFat(InputFile *f) : super(f)
+{
+    bele = &N_BELE_RTP::le_policy;  // sham
+}
+
+PackMachFat::~PackMachFat()
+{
+}
+
+const int *PackMachFat::getCompressionMethods(int /*method*/, int /*level*/) const
+{
+    static const int m_nrv2e[] = { M_NRV2E_LE32, M_END };
+    return m_nrv2e;  // sham
+}
+
+const int *PackMachFat::getFilters() const
+{
+    static const int filters[] = { 0x49, FT_END };
+    return filters;  // sham
+}
+
+void PackMachFat::pack(OutputFile *fo)
+{
+    unsigned const in_size = this->file_size;
+    fo->write(&fat_head, sizeof(fat_head.fat) +
+        fat_head.fat.nfat_arch * sizeof(fat_head.arch[0]));
+    unsigned length = 0;
+    for (unsigned j=0; j < fat_head.fat.nfat_arch; ++j) {
+        unsigned base = fo->unset_extent();  // actual length
+        base += ~(~0u<<fat_head.arch[j].align) & (0-base);  // align up
+        fo->seek(base, SEEK_SET);
+        fo->set_extent(base, ~0u);
+
+        ph.u_file_size = fat_head.arch[j].size;
+        fi->set_extent(fat_head.arch[j].offset, fat_head.arch[j].size);
+        switch (fat_head.arch[j].cputype) {
+        case PackMachFat::CPU_TYPE_I386: {
+            PackMachI386 packer(fi);
+            packer.initPackHeader();
+            packer.canPack();
+            packer.updatePackHeader();
+            packer.pack(fo);
+        } break;
+        case PackMachFat::CPU_TYPE_POWERPC: {
+            PackMachPPC32 packer(fi);
+            packer.initPackHeader();
+            packer.canPack();
+            packer.updatePackHeader();
+            packer.pack(fo);
+        } break;
+        }  // switch cputype
+        fat_head.arch[j].offset = base;
+        length = fo->unset_extent();
+        fat_head.arch[j].size = length - base;
+    }
+    ph.u_file_size = in_size;
+    fi->set_extent(0, in_size);
+
+    fo->seek(0, SEEK_SET);
+    fo->rewrite(&fat_head, sizeof(fat_head.fat) +
+        fat_head.fat.nfat_arch * sizeof(fat_head.arch[0]));
+    fo->set_extent(0, length);
+}
+
+void PackMachFat::unpack(OutputFile *fo)
+{
+    fo->seek(0, SEEK_SET);
+    fo->write(&fat_head, sizeof(fat_head.fat) +
+        fat_head.fat.nfat_arch * sizeof(fat_head.arch[0]));
+    unsigned length;
+    for (unsigned j=0; j < fat_head.fat.nfat_arch; ++j) {
+        unsigned base = fo->unset_extent();  // actual length
+        base += ~(~0u<<fat_head.arch[j].align) & (0-base);  // align up
+        fo->seek(base, SEEK_SET);
+        fo->set_extent(base, ~0u);
+
+        ph.u_file_size = fat_head.arch[j].size;
+        fi->set_extent(fat_head.arch[j].offset, fat_head.arch[j].size);
+        switch (fat_head.arch[j].cputype) {
+        case PackMachFat::CPU_TYPE_I386: {
+            PackMachI386 packer(fi);
+            packer.initPackHeader();
+            packer.canUnpack();
+            packer.unpack(fo);
+        } break;
+        case PackMachFat::CPU_TYPE_POWERPC: {
+            PackMachPPC32 packer(fi);
+            packer.initPackHeader();
+            packer.canUnpack();
+            packer.unpack(fo);
+        } break;
+        }  // switch cputype
+        fat_head.arch[j].offset = base;
+        length = fo->unset_extent();
+        fat_head.arch[j].size = length - base;
+    }
+    fo->unset_extent();
+    fo->seek(0, SEEK_SET);
+    fo->rewrite(&fat_head, sizeof(fat_head.fat) +
+        fat_head.fat.nfat_arch * sizeof(fat_head.arch[0]));
+}
+
+bool PackMachFat::canPack()
+{
+    struct Mach_fat_arch *arch = &fat_head.arch[0];
+
+    fi->readx(&fat_head, sizeof(fat_head));
+    if (Mach_fat_header::FAT_MAGIC!=fat_head.fat.magic
+    ||  N_FAT_ARCH < fat_head.fat.nfat_arch) {
+        return false;
+    }
+    for (unsigned j=0; j < fat_head.fat.nfat_arch; ++j) {
+        fi->set_extent(fat_head.arch[j].offset, fat_head.arch[j].size);
+        switch (arch[j].cputype) {
+        default: return false;
+        case PackMachFat::CPU_TYPE_I386: {
+            PackMachI386 packer(fi);
+            if (!packer.canPack())
+                return false;
+        } break;
+        case PackMachFat::CPU_TYPE_POWERPC: {
+            PackMachPPC32 packer(fi);
+            if (!packer.canPack())
+                return false;
+        } break;
+        }  // switch cputype
+    }
+
+    // info: currently the header is 36 (32+4) bytes before EOF
+    unsigned char buf[256];
+    fi->seek(-(off_t)sizeof(buf), SEEK_END);
+    fi->readx(buf, sizeof(buf));
+    checkAlreadyPacked(buf, sizeof(buf));
+
+    return true;
+}
+
+int PackMachFat::canUnpack()
+{
+    struct Mach_fat_arch *arch = &fat_head.arch[0];
+
+    fi->readx(&fat_head, sizeof(fat_head));
+    if (Mach_fat_header::FAT_MAGIC!=fat_head.fat.magic
+    ||  N_FAT_ARCH < fat_head.fat.nfat_arch) {
+        return false;
+    }
+    for (unsigned j=0; j < fat_head.fat.nfat_arch; ++j) {
+        fi->set_extent(fat_head.arch[j].offset, fat_head.arch[j].size);
+        switch (arch[j].cputype) {
+        default: return false;
+        case PackMachFat::CPU_TYPE_I386: {
+            PackMachI386 packer(fi);
+            if (!packer.canUnpack())
+                return 0;
+            ph.format = packer.getFormat(); // FIXME: copy entire PackHeader
+        } break;
+        case PackMachFat::CPU_TYPE_POWERPC: {
+            PackMachPPC32 packer(fi);
+            if (!packer.canUnpack())
+                return 0;
+            ph.format = packer.getFormat(); // FIXME: copy entire PackHeader
+        } break;
+        }  // switch cputype
+    }
+    return 1;
+}
+
+void PackMachFat::buildLoader(const Filter */*ft*/)
+{
+    assert(false);
+}
+
+Linker* PackMachFat::newLinker() const
+{
+    return new ElfLinkerX86;  // sham
+}
+
+void PackMachFat::list()
+{
+    assert(false);
+}
+
+/*
+vi:ts=4:et
+*/