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75 Commits

Author SHA1 Message Date
John Reiser ed0665407a More: prefer movzbl over movb fetch to register 
Avoids hardware failure of writing 0x00 instead of the fetched byte.
1 cycle faster, 1 byte larger (but often recouped later when OR of 32-bits).
Avoid changing win*pe.S for now.

	modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   stub/src/amd64-darwin.dylib-entry.S
	modified:   stub/src/amd64-darwin.macho-entry.S
	modified:   stub/src/amd64-expand.S
	modified:   stub/src/amd64-linux.shlib-init.S
	modified:   stub/src/arch/amd64/nrv2b_d.S
	modified:   stub/src/arch/amd64/nrv2d_d.S
	modified:   stub/src/arch/amd64/nrv2e_d.S
	modified:   stub/src/arch/i386/nrv2b_d32-easy.S
	modified:   stub/src/i386-darwin.macho-entry.S
           plus generated *.h *.map *.dump
 2024-08-25 15:16:29 -07:00
John Reiser ca33d66816 Sync stub checksums; and i386-linux and arm64-linux generated files 
modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
 2024-08-25 15:16:29 -07:00
John Reiser d71fe3eda0 Sync stub checksums (and generated files) 
Many *.h, *.dump, *.map
 2024-08-25 15:16:29 -07:00
John Reiser f7cab0cf71 ELF2 for i386-linux main programs 
OpenBSD and NetBSD main programs probably need work.
	modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   p_lx_elf.cpp
	modified:   stub/Makefile
	modified:   stub/src/i386-linux.elf-entry.S
	new file:   stub/src/i386-linux.elf-entry.lds
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   stub/src/i386-linux.elf-fold.lds
	new file:   stub/src/i386-linux.elf-main2.c
	new file:   stub/src/i386-linux.elf-so_entry.lds
	modified:   stub/src/upxfd_android.c
           plus generated *.h *.map *.dump
 2024-08-25 15:16:29 -07:00
John Reiser de8de9c0f0 Option --unmap-all-pages completely avoids /proc/self/exe 
https://github.com/upx/upx/issues/749
 2024-06-18 10:18:32 -07:00
John Reiser 92c925fe95 New i386/lzma-multi_d.S enables unpacking more than one block 
Used by p_lx_exe.cpp; others keep old i386/lzma_d.S
which allows only one block, but avoids trouble with
anti-virus utilities for some OS.
	modified:   misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	new file:   src/stub/src/arch/i386/lzma-multi_d.S
	modified:   src/stub/src/arch/i386/lzma_d.S
	modified:   src/stub/src/i386-bsd.elf.execve-entry.S
	modified:   src/stub/src/i386-linux.elf.execve-entry.S
    plus stub/*.h, *.dump

    Notable:
	modified:   src/stub/i386-dos32.djgpp2.h
	modified:   src/stub/i386-dos32.tmt.h
	modified:   src/stub/i386-dos32.watcom.le.h
	modified:   src/stub/i386-win32.pe.h
 2024-05-01 10:09:52 -07:00
John Reiser 4562d5459d Some non-ELF --lzma stubs assumed only one block, and <= 0.5MiB 
Fixed for p_lx_exc.cpp; others remain a mystery.
https://github.com/upx/upx/issues/816
 2024-05-01 10:09:52 -07:00
Markus F.X.J. Oberhumer 47fc230893 all: welcome 2024 2024-01-03 17:47:25 +01:00
Markus F.X.J. Oberhumer a1d090a6fd src/stub: add a "clang-format off" directive 2023-10-15 10:55:15 +02:00
John Reiser d6d5e7ae3d For Android emulator: align i386 LEXEC020 binfo 
modified:   src/stub/src/i386-linux.elf-entry.S
	modified:   src/p_lx_elf.cpp

	modified:   src/stub/i386-linux.elf-entry.h
	modified:   misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
 2023-09-28 12:02:28 -07:00
John Reiser 26d8e9c4c5 amd64-linux revamp for compressing shared libraries 
Major changes: p_lx_elf.cpp and stub/src/amd64-linux.elf-so*.
(Includes run-time infrastructure for multiple de-compressors.)
	modified:   linker.cpp
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
	modified:   p_unix.h
	modified:   stub/Makefile
	modified:   stub/src/amd64-darwin.dylib-entry.S
	modified:   stub/src/amd64-darwin.macho-entry.S
	new file:   stub/src/amd64-expand.S
	modified:   stub/src/amd64-linux.elf-entry.S
	new file:   stub/src/amd64-linux.elf-so_entry.S
	new file:   stub/src/amd64-linux.elf-so_fold.S
	new file:   stub/src/amd64-linux.elf-so_fold.lds
	new file:   stub/src/amd64-linux.elf-so_main.c
	modified:   stub/src/amd64-linux.shlib-init.S
	modified:   stub/src/amd64-win64.pep.S
	modified:   stub/src/arch/amd64/nrv2b_d.S
	modified:   stub/src/arch/amd64/nrv2d_d.S
	modified:   stub/src/arch/amd64/nrv2e_d.S
           plus many generated stub/*.h and stub/tmp/*.bin.dump
 2023-01-09 09:39:25 -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
John Reiser e2dbc661f1 Sync stub 
modified:   stub/i386-linux.elf-entry.h
 2021-12-03 08:38:26 -08:00
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
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
Markus F.X.J. Oberhumer 021c8db58a Welcome 2018. 2018-01-19 10:55:32 +01:00
John Reiser 08d3376740 Elf i386 stub: get enough space when unfolded code requires another page 
modified:   src/i386-linux.elf-entry.S
 2017-10-03 11:48:27 -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 9f20bbb046 Fix merge 2017-06-19 16:01:35 -07:00
John Reiser 82af555974 Merge branch 'i386-VDSO' into devel 2017-06-19 15:58:22 -07:00
John Reiser 50638b5213 i386 VDSO may conflict on low side of -pie ET_DYN 
https://github.com/upx/upx/issues/105
	modified:   stub/src/i386-linux.elf-entry.S

	modified:   stub/i386-linux.elf-entry.h
	modified:   stub/tmp/i386-linux.elf-entry.bin.dump
 2017-06-19 15:49:28 -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 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 513a57330a xstrip.py: *.bindump was unused; clear e_shnum, e_shstrndx 
modified:   stub/scripts/xstrip.py
	modified:   stub/Makefile

	modified:   stub/amd64-darwin.dylib-entry.h
	modified:   stub/amd64-darwin.macho-entry.h
	modified:   stub/amd64-linux.elf-entry.h
	modified:   stub/amd64-linux.kernel.vmlinux.h
	modified:   stub/amd64-linux.shlib-init.h
	modified:   stub/amd64-win64.pep.h
	modified:   stub/arm.v4a-linux.elf-entry.h
	modified:   stub/arm.v4a-wince.pe.h
	modified:   stub/arm.v4t-wince.pe.h
	modified:   stub/arm.v5a-darwin.macho-entry.h
	modified:   stub/arm.v5a-linux.elf-entry.h
	modified:   stub/arm.v5a-linux.kernel.vmlinux.h
	modified:   stub/arm.v5a-linux.kernel.vmlinuz.h
	modified:   stub/arm.v5a-linux.shlib-init.h
	modified:   stub/arm.v5t-linux.shlib-init.h
	modified:   stub/arm64-darwin.macho-entry.h
	modified:   stub/arm64-linux.elf-entry.h
	modified:   stub/arm64-linux.shlib-init.h
	modified:   stub/armeb.v4a-linux.elf-entry.h
	modified:   stub/armeb.v5a-linux.kernel.vmlinux.h
	modified:   stub/i086-dos16.com.h
	modified:   stub/i086-dos16.exe.h
	modified:   stub/i086-dos16.sys.h
	modified:   stub/i386-bsd.elf-entry.h
	modified:   stub/i386-bsd.elf.execve-entry.h
	modified:   stub/i386-darwin.dylib-entry.h
	modified:   stub/i386-darwin.macho-entry.h
	modified:   stub/i386-dos32.djgpp2.h
	modified:   stub/i386-dos32.tmt.h
	modified:   stub/i386-dos32.watcom.le.h
	modified:   stub/i386-linux.elf-entry.h
	modified:   stub/i386-linux.elf.execve-entry.h
	modified:   stub/i386-linux.elf.interp-entry.h
	modified:   stub/i386-linux.elf.shell-entry.h
	modified:   stub/i386-linux.kernel.vmlinux.h
	modified:   stub/i386-linux.kernel.vmlinuz.h
	modified:   stub/i386-linux.shlib-init.h
	modified:   stub/i386-netbsd.elf-entry.h
	modified:   stub/i386-win32.pe.h
	modified:   stub/m68k-atari.tos.h
	modified:   stub/mips.r3000-linux.elf-entry.h
	modified:   stub/mipsel.r3000-linux.elf-entry.h
	modified:   stub/mipsel.r3000-ps1.h
	modified:   stub/powerpc-darwin.dylib-entry.h
	modified:   stub/powerpc-darwin.macho-entry.h
	modified:   stub/powerpc-linux.elf-entry.h
	modified:   stub/powerpc-linux.kernel.vmlinux.h
	modified:   stub/powerpc64le-darwin.dylib-entry.h
	modified:   stub/powerpc64le-darwin.macho-entry.h
	modified:   stub/powerpc64le-linux.elf-entry.h
	modified:   stub/powerpc64le-linux.kernel.vmlinux.h
 2017-03-24 09:26:40 -07:00
John Reiser bf3ddeb1eb Rebuild stubs. 
modified:   amd64-darwin.dylib-entry.h
	modified:   amd64-darwin.macho-entry.h
	modified:   amd64-darwin.macho-fold.h
	modified:   amd64-linux.elf-fold.h
	modified:   amd64-linux.kernel.vmlinux.h
	modified:   amd64-linux.shlib-init.h
	modified:   amd64-win64.pep.h
	modified:   i386-bsd.elf-entry.h
	modified:   i386-bsd.elf.execve-entry.h
	modified:   i386-darwin.dylib-entry.h
	modified:   i386-darwin.macho-entry.h
	modified:   i386-dos32.djgpp2.h
	modified:   i386-dos32.tmt.h
	modified:   i386-dos32.watcom.le.h
	modified:   i386-linux.elf-entry.h
	modified:   i386-linux.elf.execve-entry.h
	modified:   i386-linux.elf.interp-entry.h
	modified:   i386-linux.kernel.vmlinux.h
	modified:   i386-linux.kernel.vmlinuz.h
	modified:   i386-linux.shlib-init.h
	modified:   i386-netbsd.elf-entry.h
	modified:   i386-win32.pe.h
	modified:   tmp/amd64-darwin.dylib-entry.bin.dump
	modified:   tmp/amd64-darwin.macho-entry.bin.dump
	modified:   tmp/amd64-linux.shlib-init.bin.dump
	modified:   tmp/amd64-win64.pep.bin.dump
 2017-01-29 14:01:57 +01:00
John Reiser ba9118aa58 Bug in unfilter on x86* when region ends in 32-bit displacement. 
https://github.com/upx/upx/issues/43
	modified:   stub/src/arch/amd64/bxx.S
	modified:   stub/src/arch/i386/macros.S
	plus all the stubs that use them
 2017-01-29 14:01:56 +01:00
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
Markus F.X.J. Oberhumer 87a368a857 Welcome 2013. 2013-02-12 10:14:03 +01:00
Markus F.X.J. Oberhumer 43ce34d547 Welcome 2012. 2012-01-01 22:35:11 +01:00
Markus F.X.J. Oberhumer 9bf2b79d9e Enter 2011. 2011-01-03 08:49:23 +01:00
John Reiser e3cc5a63df don't erase AT_SYSINFO* if no conflict with decompressed folded stub 2010-07-17 08:19:50 -07:00
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
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
Markus F.X.J. Oberhumer 000309b47f stub: remove filename from dumps in order reduce diff noise when renaming files. 2007-11-20 06:34:48 +01:00