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55 Commits

Author SHA1 Message Date
Markus F.X.J. Oberhumer 9131d5216f Welcome 2021. 2021-01-01 20:39:22 +01:00
John Reiser fd2939e18d i386 works: ELF layout for page holes 
modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   stub/src/i386-linux.elf-main.c

	modified:   stub/arm.v4a-linux.elf-fold.h
	modified:   stub/arm.v5a-linux.elf-fold.h
	modified:   stub/armeb.v4a-linux.elf-fold.h
	modified:   stub/i386-linux.elf-entry.h
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/mips.r3000-linux.elf-fold.h
	modified:   stub/mipsel.r3000-linux.elf-fold.h
	modified:   stub/powerpc-linux.elf-fold.h
	modified:   stub/src/include/linux.h
	modified:   stub/tmp/arm.v4a-linux.elf-fold.map
	modified:   stub/tmp/arm.v5a-linux.elf-fold.map
	modified:   stub/tmp/armeb.v4a-linux.elf-fold.map
	modified:   stub/tmp/i386-linux.elf-entry.bin.dump
	modified:   stub/tmp/i386-linux.elf-fold.map
	modified:   stub/tmp/mips.r3000-linux.elf-fold.map
	modified:   stub/tmp/mipsel.r3000-linux.elf-fold.map
	modified:   stub/tmp/powerpc-linux.elf-fold.map
 2020-05-15 16:05:26 -07:00
John Reiser 80c27e0822 arm.v4a works: ELF layout for page holes 
modified:   p_lx_elf.cpp
	modified:   stub/src/i386-linux.elf-main.c
	modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S

	modified:   stub/arm.v4a-linux.elf-entry.h
	modified:   stub/arm.v4a-linux.elf-fold.h
	modified:   stub/arm.v5a-linux.elf-entry.h
	modified:   stub/arm.v5a-linux.elf-fold.h
	modified:   stub/armeb.v4a-linux.elf-entry.h
	modified:   stub/armeb.v4a-linux.elf-fold.h
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/mips.r3000-linux.elf-fold.h
	modified:   stub/mipsel.r3000-linux.elf-fold.h
	modified:   stub/powerpc-linux.elf-fold.h
	modified:   stub/tmp/arm.v4a-linux.elf-entry.bin.dump
	modified:   stub/tmp/arm.v4a-linux.elf-fold.map
	modified:   stub/tmp/arm.v5a-linux.elf-entry.bin.dump
	modified:   stub/tmp/arm.v5a-linux.elf-fold.map
	modified:   stub/tmp/armeb.v4a-linux.elf-entry.bin.dump
	modified:   stub/tmp/armeb.v4a-linux.elf-fold.map
	modified:   stub/tmp/i386-linux.elf-fold.map
	modified:   stub/tmp/mips.r3000-linux.elf-fold.map
	modified:   stub/tmp/mipsel.r3000-linux.elf-fold.map
	modified:   stub/tmp/powerpc-linux.elf-fold.map
 2020-05-14 15:10:40 -07:00
John Reiser 936013f60c Decompression escape hatch for ELF can require a new page. 
If not enough room on last page of .text, and ElfXX_Ehdr not PF_X,
then the escape hatch must use a new page.
https://github.com/upx/upx/issues/308
	modified:   ../.github/travis_testsuite_1-expected_sha256sums.sh
	modified:   stub/src/amd64-linux.elf-main.c
	modified:   stub/src/i386-linux.elf-main.c
    Plus stub/*-linux.elf-fold.h and stub/tmp/*-linux.elf-fold.map
 2020-01-19 13:25:55 -08:00
Markus F.X.J. Oberhumer d1174385ef Welcome 2020. 2020-01-08 04:13:28 +01:00
Markus F.X.J. Oberhumer 3667fa4e44 Welcome 2019. 2019-02-15 11:04:09 +01:00
John Reiser b97688d119 Stub updates AT_PHDR for 32-bit libmusl, particularly -fPIE 
https://github.com/upx/upx/issues/200
	modified:   stub/src/i386-linux.elf-main.c
	  also *.elf-fold.h, *.elf-fold.map for arm, armeb, i386, mips, mipsel, powerpc
	modified:   ../.github/travis_testsuite_1.sh
 2018-08-04 18:26:02 -07:00
Markus F.X.J. Oberhumer 021c8db58a Welcome 2018. 2018-01-19 10:55:32 +01:00
John Reiser 9e8de4abe5 i386: new stub strategy to avoid problems with early mmap layout 
The stub occupies the same region that execve() would create
for the original progam.  The stub copies everything to a new area,
erases the original region, replaces it with the de-compressed
program, and erases the copy of itself via the escape hatch.
The copy is inexpensive via mmap() of /proc/self/exe.

	modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   stub/src/i386-linux.elf-main.c

	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_lx_interp.cpp
	modified:   p_lx_interp.h
	modified:   p_lx_sh.cpp
	modified:   p_lx_sh.h
	modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   p_unix.cpp
	modified:   p_unix.h
	modified:   p_vmlinx.cpp

	plus .h, .map, .dump
 2017-10-01 15:56:34 -07:00
John Reiser 08627e9df5 Fix some AT_PHDR problems, at least on x86*. 
modified:   stub/src/amd64-linux.elf-main.c
	modified:   stub/src/i386-linux.elf-main.c

	modified:   ../.github/travis_testsuite_1.sh
	plus many *.elf-fold.h and *.elf-fold.map
 2017-09-18 19:54:27 -07:00
John Reiser 3bf387a2d4 PowerPC stub unified with i386; including escape hatch [munmap all extras] 
modified:   stub/src/i386-linux.elf-main.c
	modified:   stub/src/powerpc-linux.elf-entry.S
	modified:   stub/src/powerpc-linux.elf-fold.S
	modified:   stub/src/powerpc-linux.elf-main.c
	modified:   ../.github/travis_testsuite_1.sh

	{arm.*,i386,mips*.r3000,powerpc}-linux.elf-fold.{h,map}
	powerpc-*-entry.*
 2017-06-24 18:37:16 -07:00
John Reiser b2115a4162 i386: clear the stack when leaving (for buggy programs); align esp to 0 mod 8 
modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S

	modified:   ../.github/travis_testsuite_1.sh
	modified:   stub/i386-linux.elf-entry.h
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/tmp/i386-linux.elf-entry.bin.dump
	modified:   stub/tmp/i386-linux.elf-fold.map
 2017-06-16 21:36:21 -07:00
John Reiser d67bf16a08 i386: Separate PROT_EXEC and PROT_WRITE 
Also affects some arm and mips (via sharing i386-linux.elf-main.c)
	modified:   i386-linux.elf-entry.S
	modified:   i386-linux.elf-main.c

	also .h, .map, .dump
 2017-06-16 08:17:44 -07:00
John Reiser 8f572e5fe6 Rewrite stubs for 32-bit arm and i386 for -pie (Position-Independent Executable) 
Coming next: MIPS and PowerPC.
	modified:   p_lx_elf.cpp
	modified:   stub/src/i386-linux.elf-main.c
	modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S
	modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   ../.github/travis_testsuite_1.sh

	also associated *.h *.map *.dump files
 2017-06-14 09:57:19 -07:00
John Reiser 2d3bd0809a i386-linux.elf-fold.S avoids mmap() into stack 
modified:   stub/src/i386-linux.elf-fold.S
	modified:   ../.github/travis_testsuite_1.sh
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/tmp/i386-linux.elf-fold.map
 2017-06-09 14:38:08 -07:00
John Reiser 360b94dd6c i386-linux ET_EXEC working 
modified:   stub/src/i386-linux.elf-fold.S

	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/tmp/i386-linux.elf-fold.map
 2017-04-07 16:08:13 -07:00
John Reiser 8524e73f59 Always a 1-page crumb for i386 
modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S

	modified:   stub/i386-linux.elf-entry.h
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/tmp/i386-linux.elf-entry.bin.dump
 2017-04-07 11:17:01 -07:00
John Reiser bdf08baebd O_BINFO 
modified:   stub/amd64-darwin.macho-entry.h
	modified:   stub/amd64-linux.elf-entry.h
	modified:   stub/amd64-linux.elf-fold.h
	modified:   stub/arm64-linux.elf-entry.h
	modified:   stub/i386-bsd.elf-entry.h
	modified:   stub/i386-darwin.macho-entry.h
	modified:   stub/i386-linux.elf-entry.h
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/i386-netbsd.elf-entry.h
	modified:   stub/mips.r3000-linux.elf-fold.h
	modified:   stub/mipsel.r3000-linux.elf-fold.h
	modified:   stub/powerpc-darwin.macho-entry.h
	modified:   stub/powerpc-linux.elf-entry.h
	modified:   stub/powerpc-linux.elf-fold.h
	modified:   stub/powerpc64le-darwin.macho-entry.h
	modified:   stub/powerpc64le-linux.elf-entry.h
	modified:   stub/powerpc64le-linux.elf-fold.h
	modified:   stub/src/amd64-darwin.macho-entry.S
	modified:   stub/src/amd64-linux.elf-entry.S
	modified:   stub/src/amd64-linux.elf-fold.S
	modified:   stub/src/arch/powerpc/32/ppc_regs.h
	modified:   stub/src/arm64-linux.elf-entry.S
	modified:   stub/src/i386-bsd.elf-entry.S
	modified:   stub/src/i386-darwin.macho-entry.S
	modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   stub/src/mipsel.r3000-linux.elf-fold.S
	modified:   stub/src/powerpc-darwin.macho-entry.S
	modified:   stub/src/powerpc-linux.elf-entry.S
	modified:   stub/src/powerpc-linux.elf-fold.S
	modified:   stub/src/powerpc-linux.elf-main.c
	modified:   stub/src/powerpc64le-darwin.macho-entry.S
	modified:   stub/src/powerpc64le-linux.elf-entry.S
	modified:   stub/src/powerpc64le-linux.elf-fold.S
	modified:   stub/src/powerpc64le-linux.elf-main.c
	modified:   stub/tmp/amd64-darwin.macho-entry.bin.dump
	modified:   stub/tmp/amd64-linux.elf-entry.bin.dump
	modified:   stub/tmp/amd64-linux.elf-fold.map
	modified:   stub/tmp/arm64-linux.elf-entry.bin.dump
	modified:   stub/tmp/i386-bsd.elf-entry.bin.dump
	modified:   stub/tmp/i386-darwin.macho-entry.bin.dump
	modified:   stub/tmp/i386-linux.elf-entry.bin.dump
	modified:   stub/tmp/i386-linux.elf-fold.map
	modified:   stub/tmp/i386-netbsd.elf-entry.bin.dump
	modified:   stub/tmp/powerpc-darwin.macho-entry.bin.dump
	modified:   stub/tmp/powerpc-linux.elf-entry.bin.dump
	modified:   stub/tmp/powerpc-linux.elf-fold.map
	modified:   stub/tmp/powerpc64le-darwin.macho-entry.bin.dump
	modified:   stub/tmp/powerpc64le-linux.elf-entry.bin.dump
	modified:   stub/tmp/powerpc64le-linux.elf-fold.map
 2017-04-06 14:22:47 -07:00
John Reiser a59005e836 Elf propagates NX via PT_GNU_STACK (except MIPS stub is too difficult for now) 
https://github.com/upx/upx/issues/81
	modified:   ../.github/travis_testsuite_1.sh
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   stub/amd64-linux.elf-entry.h
	modified:   stub/i386-linux.elf-fold.h
	modified:   stub/powerpc-linux.elf-fold.h
	modified:   stub/powerpc64le-linux.elf-fold.h
	modified:   stub/src/amd64-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   stub/src/powerpc-linux.elf-fold.S
	modified:   stub/src/powerpc64le-linux.elf-fold.S
	modified:   stub/tmp/amd64-linux.elf-entry.bin.dump
	modified:   stub/tmp/i386-linux.elf-fold.map
	modified:   stub/tmp/powerpc-linux.elf-fold.map
	modified:   stub/tmp/powerpc64le-linux.elf-fold.map
 2017-04-03 20:25:57 -07:00
Markus F.X.J. Oberhumer c4da5e81fa Welcome 2017. 2017-01-03 12:02:07 +01:00
Markus F.X.J. Oberhumer f7554374ab Update email address. 2016-09-28 12:25:01 +02:00
Markus F.X.J. Oberhumer 96d9968db5 Welcome 2016. 2016-09-22 14:07:14 +02:00
Markus F.X.J. Oberhumer fb611a98f9 Welcome 2015. 2015-01-03 00:24:07 +01:00
Markus F.X.J. Oberhumer a26c982e93 Welcome 2014. 2014-01-07 23:05:10 +01:00
John Reiser e84abbdc82 ARM __clear_cache() has bugs 
Linux hostname 3.0.8-482645-user #1 SMP PREEMPT Mon Apr 30 19:43:45 KST 2012 armv7l GNU/Linux
  Processor	: ARMv7 Processor rev 3 (v7l)

  processor	: 0
  BogoMIPS	: 597.12

  processor	: 1
  BogoMIPS	: 597.12

  CPU implementer	: 0x41
  CPU architecture: 7
  CPU variant	: 0x1
  CPU part	: 0xc09
  CPU revision	: 3

  Hardware	: Espresso10
  Revision	: 000a
 2013-06-09 13:03:06 -07:00
John Reiser 5438a4837b more AT_PHDR trouble 2013-02-15 16:32:51 -08:00
Markus F.X.J. Oberhumer 87a368a857 Welcome 2013. 2013-02-12 10:14:03 +01:00
John Reiser 8fafa78796 sync stubs 2013-01-31 12:33:16 -08:00
Markus F.X.J. Oberhumer 43ce34d547 Welcome 2012. 2012-01-01 22:35:11 +01:00
John Reiser 6256381dc3 mmap_privanon() in stub for arm,i386,mips eases QNX 2011-10-16 11:39:46 -07:00
John Reiser b247b051ea QNX on armel (experimental) 2011-10-15 19:49:37 -07:00
Markus F.X.J. Oberhumer 9bf2b79d9e Enter 2011. 2011-01-03 08:49:23 +01:00
John Reiser dfc2efe8a6 make_hatch_arm() needs sys_munmap; also fix ARM div10. 2010-11-15 11:51:46 -08:00
John Reiser 5336c51199 Fix conflict between VDSO and unfolded decompressor for ET_DYN 
(-fPIE) with unlimited stack on Linux-2.6.34 et al.
 2010-07-16 20:58:52 -07:00
John Reiser f03f42ca4d Linux preserve /proc/self/exe; --unmap-all-pages option 2010-02-28 15:58:08 -08:00
Markus F.X.J. Oberhumer 6bc3197721 Enter 2010. 2010-02-06 17:15:49 +01:00
John Reiser 3664d86430 i386-linux.elf-fold fix compressed size for ET_DYN 2009-02-12 12:41:10 -08:00
Markus F.X.J. Oberhumer 5ed689ceb0 Enter 2009. 2008-12-31 17:07:18 +01:00
John Reiser 1307f66494 stub/i386-*.*-fold.S: allow 0==argc 2008-05-15 09:05:20 -07:00
Markus F.X.J. Oberhumer 6c8bb3a22e Rebuild all stubs with new formatting - no binary changes. 2008-04-04 17:21:24 +02:00
Markus F.X.J. Oberhumer 6ff1bd5917 Update my email address. 2008-01-02 10:12:42 +01:00
Markus F.X.J. Oberhumer fa49dbe2cb Enter 2008. 2008-01-02 09:42:31 +01:00
John Reiser a428eddf93 catch up automatically-generated files 2007-05-16 13:51:44 -07:00
John Reiser 81928d4ab1 mipsel stub escape hatch for munmap 2007-05-10 13:13:11 -07:00
John Reiser 3ebf93e03d mipsel syscall read+write of same register 2007-05-09 22:17:09 -07:00
John Reiser 59e4032f1f mipsel stub syscall registers 2007-05-08 13:33:00 -07:00
Markus F.X.J. Oberhumer 6e5f5732b5 brandelf.py: do not write "Linux" any longer as newer ldd's (e.g. 
from glibc-common-2.5-10.fc6) do not like this.
 2007-01-31 05:58:17 +01:00
Markus F.X.J. Oberhumer 5e83596a1b Enter 2007. 2007-01-14 13:08:58 +01:00
Markus F.X.J. Oberhumer 68f54a3247 Updated bin2h.py. 2006-11-23 02:23:39 +01:00
Markus F.X.J. Oberhumer 989d10a3e1 Rebuilt all stubs with new bin2h.py and --ident=auto-stub. 2006-11-21 03:36:48 +01:00