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28 Commits

Author SHA1 Message Date
John Reiser adb0ca8250 Many changes for ELF shared libraries on Linux and Android 
Handling more than 2 PT_LOAD (and thus more than 1 executable PT_LOAD)
required extensive changes.  But the bonus is the infrastructure
to support a different (de-)compression algorithm for each PT_LOAD.

https://github.com/upx/upx/issues/341   i386 .so decompression
https://github.com/upx/upx/issues/609   armv7 .so on Android
https://github.com/upx/upx/issues/625   amd64 .so execution
https://github.com/upx/upx/issues/654   armv7 .exe
Not yet: .so on MIPS, PowerPC, PowerPC64
 2023-03-04 17:37:25 -08:00
Markus F.X.J. Oberhumer dd1d5a92d2 all: welcome 2023 2023-01-01 19:49:30 +01:00
Markus F.X.J. Oberhumer d001a63bce Welcome 2022. 2022-09-04 04:24:39 +02:00
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 b122f8e9d0 Optimize /proc/self/exe. Sync stubs. 
See also commit 78b1da5c00 earlier today
for https://github.com/upx/upx/issues/225 .
	modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S
	also *.h, *.map, *.bin.dump
 2018-10-09 20:11:34 -07:00
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 2bf5bb1625 arm: stub uses new strategy 
modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S
	modified:   p_lx_elf.cpp
	plus .h, .bin.dump, .map
 2017-10-05 17:07:30 -07:00
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 ede570be21 Spend 8 instructions to avoid modifying [0xf7000000, +) under qemu-arm. 
modified:   src/arm.v4a-linux.elf-entry.S
	modified:   src/arm.v4a-linux.elf-fold.S

	plus arm*.h and tmp/arm*.{dump,map}
 2017-09-20 13:31:38 -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 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 955206aaf0 Merge branch 'devel' into jreiser 
Conflicts:
	src/p_lx_elf.cpp
	src/stub/src/amd64-linux.elf-entry.S
	src/stub/src/amd64-linux.elf-main.c
	src/stub/src/arm.v4a-linux.elf-entry.S
	src/stub/src/arm.v4a-linux.elf-fold.S
	src/stub/src/arm64-linux.elf-entry.S
	src/stub/src/arm64-linux.elf-fold.S
	src/stub/src/i386-linux.elf-fold.S
	src/stub/src/powerpc-darwin.macho-entry.S
	src/stub/src/powerpc-linux.elf-fold.S
	src/stub/src/powerpc64le-darwin.macho-entry.S
	src/stub/src/powerpc64le-linux.elf-entry.S
	src/stub/src/powerpc64le-linux.elf-fold.S
	src/stub/src/powerpc64le-linux.elf-main.c

 Changes to be committed:
	modified:   ../.github/ISSUE_TEMPLATE.md
	modified:   ../.github/travis_build.sh
	modified:   ../.github/travis_deploy.sh
	modified:   ../.github/travis_init.sh
	modified:   ../.github/travis_testsuite_1.sh
	modified:   ../.gitignore
	modified:   ../.travis.yml
	modified:   ../NEWS
	modified:   c_screen.cpp
	modified:   file.cpp
	modified:   help.cpp
	modified:   linker.cpp
	modified:   main.cpp
	modified:   p_lx_elf.cpp
	modified:   packer.cpp
	modified:   s_djgpp2.cpp
	modified:   stub/src/amd64-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/arm64-linux.elf-entry.S
	modified:   stub/src/arm64-linux.elf-fold.S
	modified:   stub/src/i386-linux.elf-main.c
	modified:   stub/src/powerpc-darwin.dylib-entry.S
	modified:   stub/src/powerpc-darwin.macho-entry.S
	modified:   stub/src/powerpc-darwin.macho-fold.S
	modified:   stub/src/powerpc-linux.elf-fold.S
	modified:   stub/src/powerpc64le-darwin.dylib-entry.S
	modified:   stub/src/powerpc64le-darwin.macho-entry.S
	modified:   stub/src/powerpc64le-darwin.macho-fold.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:   ui.cpp
	modified:   util.cpp
	modified:   work.cpp
	[plus *.h, *.dump, *.map]
 2017-05-08 14:21:31 -07:00
John Reiser 61798d33f0 Revamp stub on arm, arm64; mmap into stack defeats auto-expansion [kernel bug?] 
modified:   stub/src/arm.v4a-linux.elf-fold.S
	modified:   stub/src/arm64-linux.elf-entry.S
	modified:   stub/src/arm64-linux.elf-fold.S

	modified:   ../.github/travis_testsuite_1.sh
	modified:   stub/arm.v4a-linux.elf-fold.h
	modified:   stub/arm.v5a-linux.elf-fold.h
	modified:   stub/arm64-linux.elf-entry.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/armeb.v4a-linux.elf-fold.h
	modified:   stub/tmp/arm.v4a-linux.elf-fold.map
	modified:   stub/tmp/arm.v5a-linux.elf-fold.map
	modified:   stub/tmp/arm64-linux.elf-fold.map
	modified:   stub/tmp/armeb.v4a-linux.elf-fold.map
 2017-05-05 18:36:44 -07:00
John Reiser 32019c61aa dynamic e_phnum for arm 
modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S

	modified:   ../.github/travis_testsuite_1.sh
	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/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
 2017-04-30 19:15:17 -07:00
John Reiser 40b506d2e0 Sync arm* stubs 
modified:   ../arm.v4a-linux.elf-entry.h
	modified:   ../arm.v4a-linux.elf-fold.h
	modified:   ../arm.v5a-linux.elf-entry.h
	modified:   ../arm.v5a-linux.elf-fold.h
	modified:   ../arm64-darwin.macho-entry.h
	modified:   ../arm64-linux.elf-entry.h
	modified:   ../arm64-linux.elf-fold.h
	modified:   ../armeb.v4a-linux.elf-entry.h
	modified:   ../armeb.v4a-linux.elf-fold.h
	modified:   ../tmp/arm.v4a-linux.elf-entry.bin.dump
	modified:   ../tmp/arm.v4a-linux.elf-fold.map
	modified:   ../tmp/arm.v5a-linux.elf-entry.bin.dump
	modified:   ../tmp/arm.v5a-linux.elf-fold.map
	modified:   ../tmp/arm64-darwin.macho-entry.bin.dump
	modified:   ../tmp/arm64-linux.elf-entry.bin.dump
	modified:   ../tmp/armeb.v4a-linux.elf-entry.bin.dump
	modified:   ../tmp/armeb.v4a-linux.elf-fold.map
 2017-04-11 19:13:11 -07:00
John Reiser 483db31acd arm: Preserve 8-byte alignment of stack pointer 
https://github.com/upx/upx/issues/60  (partial)
	modified:   stub/src/arm.v4a-linux.elf-fold.S

	modified:   ../.github/travis_testsuite_1.sh
	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/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
 2017-02-14 20:36:45 -08:00
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 f322b580ff stub: arm renaming. 2016-09-22 11:28:00 +02:00