Commit Graph

2876 Commits

Author SHA1 Message Date
John Reiser 2a594ad0a7 Better return value when de-compression method mismatches.
modified:   arch/amd64/lzma_d.S
	modified:   arch/amd64/nrv2b_d.S
	modified:   arch/amd64/nrv2d_d.S
	modified:   arch/amd64/nrv2e_d.S
2018-10-07 10:15:48 -07:00
John Reiser b05073550c "pop %rcx", not %ecx
modified:   amd64-darwin.macho-entry.S
	modified:   amd64-linux.elf-entry.S
2018-10-07 10:11:45 -07:00
John Reiser 37d6a34e58 MSVC is a nimrod. (All verions 10.0 through 14.1)
"(4074): error C4146: unary minus operator applied to unsigned type, result still unsigned"
So what?  Many programmers are much better than the typical Microsoft coder.
The C standard GUARANTEES that unsigned arithmetic uses two's complement,
ignores overflow, and the result is what the hardware adder produces.
	modified:   p_lx_elf.cpp
2018-09-23 20:45:07 -07:00
John Reiser 4f0cba9bb6 /proc/self/exe mapping had wrong offset in stub for 32-bit ARM
https://github.com/upx/upx/issues/221
	modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S
	also arm*.*-linux.elf-*.{h,map}
2018-09-23 20:32:37 -07:00
John Reiser 4d1c754af9 Preserve Mach_segment_header.flags; fix non-PIE main programs on MacOS.
https://github.com/upx/upx/issues/222
	modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   stub/src/amd64-darwin.macho-entry.S
	also *.macho-*.h, *.macho-fold.map, amd64-darwin.macho-entry.bin.dump
2018-09-22 18:50:37 -07:00
John Reiser c1cfde21d7 Map when .vmsize (not .filesize). More debugging DPRINTF;
modified:   stub/src/amd64-darwin.macho-main.c
	also *.macho-fold.h, *.macho-fold.map
2018-09-22 13:06:45 -07:00
John Reiser bb1f9cdecd Propagate pagezero_vmsize; fix overlay_offset.
modified:   p_mach.cpp
2018-09-22 12:11:51 -07:00
John Reiser b259b0ca28 Print failed syscalls to stderr
modified:   stub/src/amd64-darwin.macho-fold.S
2018-09-22 12:09:22 -07:00
John Reiser 0051dfc84f --android-shlib: Relocate ABS _edata etc.
https://github.com/upx/upx/issues/220
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
2018-09-16 15:10:40 -07:00
John Reiser 9f294e6ce5 Fix "upx -d" de-compression when input is compressed Android shlib.
https://github.com/upx/upx/issues/220
	modified:   p_lx_elf.cpp
2018-09-16 13:09:43 -07:00
John Reiser 153ea8be03 MSVC signed/unsigned
modified:   p_mach.cpp
2018-09-11 21:13:27 -07:00
John Reiser f3f7f97f8d MSVC signed/unsigned
modified:   p_mach.cpp
2018-09-09 15:58:24 -07:00
John Reiser 9bb6854e64 Fix stub for MacOS El Capitan, which has "pre-linked" /usr/bin/dyld
https://github.com/upx/upx/issues/218
https://github.com/Homebrew/homebrew-core/pull/31846
	modified:   src/amd64-darwin.macho-main.c
	    also *-darwin.mach-fold.{h,map}
2018-09-09 15:37:54 -07:00
John Reiser 597e8fe407 Fix de-compression for Mach-O files (MacOS)
https://github.com/upx/upx/issues/219
	modified:   p_mach.cpp
	modified:   p_mach.h
2018-09-08 11:41:38 -07:00
John Reiser 0dac6b7be3 MacOS de-compression (upx -d)
https://github.com/upx/upx/issues/218
	modified:   p_mach.cpp
2018-09-04 20:52:17 -07:00
Markus F.X.J. Oberhumer 2fcc3f86c0 Introduce environment variable UPX_DISABLE_GITREV_WARNING. 2018-08-26 06:29:58 +02:00
Markus F.X.J. Oberhumer 56f4d781c1 Post-release version bump. 2018-08-26 06:08:40 +02:00
John Reiser 2923c0968e Merge branch 'devel' of https://github.com/upx/upx into devel
Fix Conflicts:
	.github/travis_testsuite_1.sh
2018-08-22 14:58:36 -07:00
John Reiser bdd97fe0b2 build stubs
modified:   amd64-linux.elf-fold.h
	modified:   arm64-linux.elf-fold.h
	modified:   i386-bsd.elf-fold.h
	modified:   i386-linux.elf.interp-fold.h
	modified:   i386-netbsd.elf-fold.h
	modified:   i386-openbsd.elf-fold.h
	modified:   powerpc64-linux.elf-fold.h
	modified:   powerpc64le-linux.elf-fold.h
	modified:   tmp/amd64-linux.elf-fold.map
	modified:   tmp/arm64-linux.elf-fold.map
	modified:   tmp/i386-bsd.elf-fold.map
	modified:   tmp/i386-linux.elf.interp-fold.map
	modified:   tmp/i386-netbsd.elf-fold.map
	modified:   tmp/i386-openbsd.elf-fold.map
	modified:   tmp/powerpc64-linux.elf-fold.map
	modified:   tmp/powerpc64le-linux.elf-fold.map
2018-08-22 14:48:15 -07:00
John Reiser 6b500bc83b auxv_up() quit at AT_NULL, especially when AT_BASE has been omitted.
Based on contribution from Brian Geffon 'bgaff'
https://github.com/upx/upx/pull/215 ; bgaff
	modified:   amd64-linux.elf-main.c
	modified:   i386-bsd.elf-main.c
	modified:   i386-linux.elf.interp-main.c
	modified:   i386-openbsd.elf-main.c
2018-08-22 14:39:14 -07:00
Markus F.X.J. Oberhumer 04d79040f9 Bump tentative release date. 2018-08-22 13:15:50 +02:00
Markus F.X.J. Oberhumer 2f06de54c5 Cosmetic update. 2018-08-22 12:43:23 +02:00
John Reiser 6489ec9bba Fix PT_LOAD for ELF shared library.
modified:   p_lx_elf.cpp
2018-08-20 19:36:27 -07:00
John Reiser 8f9713ed53 Appease MSVC warning C4018: s/igned/unsigned mismatch
modified:   p_lx_elf.cpp
2018-08-13 18:47:42 -07:00
John Reiser 90eb68b3b9 Adapt to 4 PT_LOAD in binutils-2.31 and gcc-8.2.1 (Fedora 29)
0:        PF_R: .gnu.hash .dynsym .dynstr
1: PF_X | PF_R: .plt .plt.sec .text
2:        PF_R: .rodata .hash
3: PF_W | PF_R: .data.rel.ro .dynamic .got .got.plt .data .bss
	modified:   p_lx_elf.cpp

https://github.com/upx/upx/issues/212 (partial, Fedora 29)
2018-08-13 17:36:56 -07:00
John Reiser 95fcbcb4f2 ::PackLinuxElf64amd() sets lg2_page back to 12.
https://github.com/upx/upx/issues/212 (partial, Fedora 29)
	modified:   p_lx_elf.cpp
2018-08-10 20:28:40 -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
John Reiser d9288213ec More checking of PT_DYNAMIC and its contents.
https://github.com/upx/upx/issues/206
	modified:   p_lx_elf.cpp
2018-05-17 21:48:26 -07:00
John Reiser 614c86fb7d --force-pie inhibits treating as shared library (for 'rust', etc.)
https://github.com/upx/upx/issues/200
	modified:   main.cpp
	modified:   options.h
	modified:   p_lx_elf.cpp
2018-04-26 13:44:17 -07:00
John Reiser 9f651ee40f Ignore ElfXX_Shdr if not CMD_COMPRESS; beware unpack when PT_DYNAMIC in other PT_LOAD
https://github.com/upx/upx/issues/200
	modified:   p_lx_elf.cpp
2018-04-26 08:34:58 -07:00
John Reiser 774c8c3fd4 Fix forgotten get_teXX() in canPack() and invert_pt_dynamic()
https://github.com/upx/upx/issues/200
	modified:   p_lx_elf.cpp
2018-04-25 23:05:17 -07:00
John Reiser b711d2f750 TLS callbacks: one entry only
https://github.com/upx/upx/issues/186  [partial, incomplete]
(Laszlo hints there is more, but meanwhile this does fix some.)
	modified:   pefile.cpp
2018-04-06 13:44:24 -07:00
John Reiser 8a793d5942 ELF shlib when no DT_INIT (especially --android-shlib)
https://github.com/upx/upx/issues/191
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
2018-04-04 09:15:18 -07:00
Mattiwatti 2c2e108301 PE: fix comparison against a constant value
... due to size always being assigned to right before this comparison,
and instead check against the RVA and size of the export directory
from the header. (note: this is still stricter than the Windows loader
which ignores all of these except the directory RVA, but if the name RVA
is invalid the PE was probably tampered with).
Change 'offset' to 'RVA' in exception message; this field is always an RVA

  Author:    Mattiwatti <mattiwatti@gmail.com>
	modified:   pefile.cpp
2018-04-02 09:07:29 -07:00
John Reiser 563165e6ae Defensive patches from hints by Sean Williams <rootkit@google.com>
modified:   pefile.cpp
2018-03-29 16:55:21 -07:00
John Reiser f1a31b4793 ELf32::unpack; Elf64 parity with Elf32 for shlib with no DT_INIT
https://github.com/upx/upx/issues/191  [partial, not finished]
	modified:   p_lx_elf.cpp
2018-03-27 19:15:47 -07:00
John Reiser 5e9b6bd69d more ELF shlib when no DT_INIT (especially Android): hook DT_INIT_ARRAY[0]
https://github.com/upx/upx/issues/191  [partial, not finished]
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   stub/src/arm.v4a-linux.shlib-init.S
	modified:   stub/src/arm.v4t-linux.shlib-init.S
2018-03-26 16:30:52 -07:00
John Reiser 9b990c4eae clarity
modified:   p_lx_elf.cpp
2018-03-24 13:52:29 -07:00
John Reiser 7a625a449a ELF shlib without DT_INIT: steal a DT_NULL from PT_DYNAMIC
https://github.com/upx/upx/issues/191  [partial, not finished]
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
2018-03-24 09:41:58 -07:00
John Reiser c2b62359d5 arm32 stubs on linux: allow 0==user_DT_INIT as nop; somewhat expensive
modified:   stub/arm.v5a-linux.shlib-init.h
	modified:   stub/arm.v5t-linux.shlib-init.h
	modified:   stub/src/arm.v4a-linux.shlib-init.S
	modified:   stub/src/arm.v4t-linux.shlib-init.S
	modified:   stub/tmp/arm.v5a-linux.shlib-init.bin.dump
	modified:   stub/tmp/arm.v5t-linux.shlib-init.bin.dump
2018-03-24 08:55:04 -07:00
John Reiser 6722e8972e cleanup dead variables: is_big, all_pages
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
2018-03-23 08:06:31 -07:00
John Reiser fefe7a3452 Fix segTEXT.vmsize and data for entry to shlib.
https://github.com/upx/upx/issues/57
	modified:   p_mach.cpp
2018-03-19 14:59:20 -07:00
John Reiser 90a1322929 Also check for wrap-around when checking oversize involving e_shoff and e_shnum.
raised by https://github.com/upx/upx/pull/190
	modified:   p_lx_elf.cpp
2018-03-15 21:25:20 -07:00
John Reiser d698eb69e2 Fix decompression stub for arm64 --lzma
https://github.com/upx/upx/issues/181
	modified:   stub/src/arch/arm64/v8/lzma_d.S
2018-02-24 13:04:15 -08:00
John Reiser 0ef00e9b82 Fix --lzma (and so --ultra-brute) for 32-bit ARM
https://github.com/upx/upx/issues/167  (comment #14)
	modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   ../.github/travis_testsuite_1.sh
2018-02-03 15:44:00 -08:00
John Reiser 95cedb6640 upgrade ::unpack for --android-shlib
modified:   p_elf_enum.h
    	modified:   p_lx_elf.cpp
    	modified:   p_lx_elf.h
    	modified:   stub/src/arm64-linux.shlib-init.S
    	modified:   stub/src/arm.v4t-linux.shlib-init.S
2018-02-02 14:50:56 -08:00
John Reiser d736da4208 Elf32, not shared lib: leave alone the hole between .text and .data
In theory Linux might put pages there (and that would be a problem),
but postpone closing the gap until more experience.
	modified:   p_lx_elf.cpp
2018-01-28 13:30:10 -08:00
John Reiser be83788666 --android-shlib for 32-bit ARM
Includes better handling of asl_delta in execution stub.

    	modified:   p_lx_elf.cpp
    	modified:   p_lx_elf.h
    	modified:   stub/src/arm.v4t-linux.shlib-init.S
    	modified:   stub/src/arm64-linux.shlib-init.S
2018-01-27 22:00:16 -08:00
John Reiser 5a28a51abc android shlib: better handling of asl_delta in execution stub
modified:   p_lx_elf.cpp
    	modified:   stub/src/arm64-linux.shlib-init.S
2018-01-26 12:35:06 -08:00
John Reiser 8a84df752c Compiler nit: ptr->ENUM is not always considered a constant
modified:   p_lx_elf.cpp
2018-01-26 11:54:33 -08:00