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208 Commits

Author SHA1 Message Date
Markus F.X.J. Oberhumer
f7e2266c3f Start using some C++ 14 features. 2020-12-08 05:40:17 +01:00
Markus F.X.J. Oberhumer
bd193201b2 Avoid a clang-11 warning. 2020-12-03 02:14:47 +01:00
John Reiser
1879185e42 Check Mach_command.cmdsize 
https://github.com/upx/upx/issues/426
Also use MemBuffer to avoid leaks that result from throw()
	modified:   p_mach.cpp
	modified:   p_mach.h
 2020-11-28 10:56:28 -08:00
John Reiser
a928a08f9d ptrTEXT in PackMachBase<T>::canUnpack() 
https://github.com/upx/upx/issues/417
	modified:   p_mach.cpp
 2020-11-06 19:14:18 -08:00
John Reiser
2f453acf5d use UPX_RSIZE_MAX_MEM 
modified:   p_mach.cpp
 2020-05-28 15:45:07 -07:00
John Reiser
4ae1576726 Mach-o LC_SEGMENTs not monotonic in file (__DWARF for 'go') 
https://github.com/upx/upx/issues/222  go-1.14 (but not go-1.14.3 ?)
	modified:   ../p_mach.cpp
	modified:   ../p_mach.h
	modified:   ../p_unix.cpp
	modified:   ../p_unix.h
	modified:   ../stub/src/amd64-darwin.macho-main.c

	modified:   ../stub/amd64-darwin.macho-fold.h
	modified:   ../stub/arm.v5a-darwin.macho-fold.h
	modified:   ../stub/arm64-darwin.macho-fold.h
	modified:   ../stub/tmp/amd64-darwin.macho-fold.map
	modified:   ../stub/tmp/arm.v5a-darwin.macho-fold.map
	modified:   ../stub/tmp/arm64-darwin.macho-fold.map
 2020-05-30 02:54:09 -07:00
Markus F.X.J. Oberhumer
92f072cf70 Silence some compiler warnings. 2020-01-08 04:49:27 +01:00
Markus F.X.J. Oberhumer
d1174385ef Welcome 2020. 2020-01-08 04:13:28 +01:00
John Reiser
819c33fee2 Detect malformed Mach-o file in ::canUnpack() 
https://github.com/upx/upx/issues/314
https://github.com/upx/upx/issues/315
	modified:   p_mach.cpp
 2019-11-15 21:32:06 -08:00
John Reiser
3de0008543 i386-darwin.macho re-implementation, especially for MacOS <= 10.8.x (Mountain Lion) 
[i386 will not be supported by new MacOS beginning fall 2019.]
https://github.com/upx/upx/issues/246
	modified:   p_mach.cpp
	modified:   stub/i386-darwin.macho-entry.h
	modified:   stub/i386-darwin.macho-fold.h
	modified:   stub/i386-darwin.macho-upxmain.exe
	modified:   stub/i386-darwin.macho-upxmain.h
	new file:   stub/src/arch/i386/bxx.S
	new file:   stub/src/arch/i386/nrv2b_d32-easy.S
	new file:   stub/src/arch/i386/nrv2d_d32-easy.S
	new file:   stub/src/arch/i386/nrv2e_d32-easy.S
	modified:   stub/src/i386-darwin.macho-entry.S
	modified:   stub/src/i386-darwin.macho-fold.S
	modified:   stub/src/i386-darwin.macho-main.c
	modified:   stub/src/i386-darwin.macho-upxmain.c
	modified:   stub/tmp/i386-darwin.macho-entry.bin.dump
	modified:   stub/tmp/i386-darwin.macho-fold.map
 2019-03-02 15:39:30 -08:00
John Reiser
423f1a8758 pack4() "__TEXT".nsects can differ from prototype to actual 
modified:   p_mach.cpp
 2019-02-18 14:41:43 -08:00
Markus F.X.J. Oberhumer
3667fa4e44 Welcome 2019. 2019-02-15 11:04:09 +01:00
John Reiser
473b90419f Mach-o for 'rust' has intermixed LC_SEGMENT64 "__DWARF" with 0==.vmsize 
https://github.com/upx/upx/issues/222
	modified:   p_mach.cpp
	modified:   stub/src/amd64-darwin.macho-main.c
	modified:   stub/src/amd64-darwin.macho-upxmain.c
	also *-darwin.macho-fold.{h,map}
 2018-10-13 21:06:37 -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
bb1f9cdecd Propagate pagezero_vmsize; fix overlay_offset. 
modified:   p_mach.cpp
 2018-09-22 12:11:51 -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
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
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
Markus F.X.J. Oberhumer
021c8db58a Welcome 2018. 2018-01-19 10:55:32 +01:00
Markus F.X.J. Oberhumer
900926c0ed Avoid a MSVC warning. 2018-01-12 10:19:14 +01:00
John Reiser
ee3f1292d0 fix editing rot for mach-o .dylib 
https://github.com/upx/upx/issues/57
	modified:   p_mach.cpp
 2018-01-11 11:33:15 -08:00
John Reiser
4854c03096 uint64_t ==> upx_uint64_t 
MSVC error C2065: 'uint64_t' : undeclared identifier
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_mach.cpp
 2018-01-06 09:33:04 -08:00
John Reiser
79e65503a9 Merge branch 'devel' into jreiser-macho 2017-12-26 10:41:26 -08:00
John Reiser
aefb2fa3c3 bad logic for throwCantUnpack("cmdsize") [simple] 
https://github.com/upx/upx/issues/161
	modified:   p_mach.cpp
 2017-12-19 17:36:22 -08:00
John Reiser
e8aa80f904 stash work-in-progress 
modified:   linker.cpp
	modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   packmast.cpp
	modified:   stub/Makefile
	modified:   stub/src/amd64-darwin.macho-main.c
	modified:   stub/src/arm.v5a-darwin.macho-entry.S
	modified:   stub/src/arm64-darwin.macho-entry.S
	modified:   stub/src/arm64-darwin.macho-fold.S
	modified:   stub/src/arm64-darwin.macho-main.c
 2017-12-19 17:32:15 -08:00
John Reiser
5063480a38 MH_EXECUTE runs under lldb, fails under shell 
mmap  addr=0x100000000  len=0x3003  prot=0x3  flags=0x1012  fd=-1  off=0x0  reloc=0x0
maddr=0xffffffffffffffff  addr=0x100000000
	modified:   p_mach.cpp
	modified:   p_mach_enum.h
	modified:   stub/src/amd64-darwin.macho-entry.S
	modified:   stub/src/amd64-darwin.macho-fold.S
	modified:   stub/src/amd64-darwin.macho-main.c
 2017-12-13 09:54:44 -08:00
John Reiser
3400ae9dbe MH_EXECUTE leave space for thread state command 
modified:   p_mach.cpp
 2017-12-12 10:53:19 -08:00
John Reiser
c6d6378005 Mach-o MH_EXECUTE rewrite; work-in-progress 
The stub for amd64 gets into the de-compressed folded code.
	modified:   p_mach.cpp
	modified:   stub/amd64-darwin.macho-entry.h
	modified:   stub/src/amd64-darwin.macho-entry.S
	modified:   stub/src/amd64-darwin.macho-upxmain.c
	modified:   stub/tmp/amd64-darwin.macho-entry.bin.dump
 2017-12-06 17:04:47 -08:00
John Reiser
4f6979967d Mach-o MH_EXECUTE rewrite; work-in-progress 
On amd64, otool and lldb accept the results.
The entry point points to the unfilter and uncompress routines.
Somehow _start has been lost.

	modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   p_mach_enum.h
	modified:   stub/amd64-darwin.macho-entry.h
	modified:   stub/src/amd64-darwin.macho-entry.S
	modified:   stub/src/amd64-darwin.macho-upxmain.c
	modified:   stub/src/i386-darwin.macho-upxmain.c
	modified:   stub/src/powerpc-darwin.macho-upxmain.c
	modified:   stub/tmp/amd64-darwin.macho-entry.bin.dump
 2017-12-03 23:17:55 -08:00
John Reiser
6eafa552bb Mach-o defend against bad crafted input 
https://github.com/upx/upx/issues/146
	modified:   p_mach.cpp
 2017-11-15 13:38:54 -08:00
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
96433b4e39 FILTER_ID was wrong for arm64-linux.shlib and arm64-darwin.macho. 
https://github.com/upx/upx/issues/100  (partial)
	modified:   stub/src/arm64-darwin.macho-fold.S
	modified:   stub/src/arm64-linux.shlib-init.S
	modified:   p_mach.cpp

	modified:   stub/arm64-darwin.macho-fold.h
	modified:   stub/arm64-linux.shlib-init.h
 2017-08-25 12:51:33 -07:00
Markus F.X.J. Oberhumer
ef8a7f330d Silence some compiler warnings. 2017-07-23 02:59:51 +02:00
Markus F.X.J. Oberhumer
69355514c9 Fix some misspellings. 2017-07-22 12:54:37 +02:00
John Reiser
650df95b72 Fix thinko in PackMachBase<T>::canUnpack(). Also detect more bad input values. 
https://github.com/upx/upx/issues/109
	modified:   p_mach.cpp
 2017-06-18 14:24:44 -07:00
John Reiser
143c4e3322 Fix MH_EXECUTE for amd64-darwin.macho 
modified:   p_mach.cpp
	modified:   stub/src/amd64-darwin.macho-entry.S

	modified:   stub/amd64-darwin.macho-entry.h
	modified:   stub/tmp/amd64-darwin.macho-entry.bin.dump
 2017-06-07 08:58:20 -07:00
John Reiser
ce194fa5d8 amd64-darwin.dylib hacking 
modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   p_mach_enum.h
	modified:   stub/src/amd64-darwin.dylib-entry.S

	modified:   stub/amd64-darwin.dylib-entry.h
	modified:   stub/tmp/amd64-darwin.dylib-entry.bin.dump
 2017-05-17 15:50:34 -07:00
John Reiser
fe4a8f33b1 Start on darwin.macho-dylib 
modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   packmast.cpp
 2017-05-03 08:30:21 -07:00
John Reiser
6ed67f4532 Unpack prefix with appended data; give message, keep backup 
https://github.com/upx/upx/issues/4
	modified:   p_mach.cpp
 2017-04-03 12:53:27 -07:00
John Reiser
f7751684af Stubs LZMA_DEC00 and LZMA_ELF00 fall through; no "+80C" alignment. 
addStubEntrySections() and getDecompressorSections()
	modified:   p_lx_elf.cpp
	modified:   p_mach.cpp
	modified:   packer_c.cpp
 2017-02-05 13:26:02 -08:00
John Reiser
2cefd34bb7 Allow __PAGEZERO.vmsize to be 0x1000 on x86_64, as for "go"-language. 
https://github.com/upx/upx/issues/59
	modified:   p_mach.cpp
	modified:   p_mach.h
 2017-02-03 15:12:40 -08:00
Markus F.X.J. Oberhumer
5d3be8da1d Silence a MSVC warning. 2017-01-03 12:37:35 +01:00
Markus F.X.J. Oberhumer
c4da5e81fa Welcome 2017. 2017-01-03 12:02:07 +01:00
Markus F.X.J. Oberhumer
0b4ac35bc9 Tune some MSVC warnings. 2016-12-19 22:57:43 +01:00
John Reiser
9c1bc99d7a Avoid warning C4146: unary minus operator applied to unsigned type, result still unsigned 
modified:   p_mach.cpp
 2016-12-16 10:59:51 -08:00
Markus F.X.J. Oberhumer
8d61e037f9 Cleanups. 2016-11-20 14:17:21 +01:00
John Reiser
3df7d26101 propagate cpusubtype 
modified:   p_mach.cpp
	modified:   p_mach.h
 2016-11-14 05:06:29 -08:00
John Reiser
a72aca4379 powerpc (32-bit) works on MacOS using Sierra-compatible strategy. 
modified:   p_mach.cpp
	modified:   p_mach.h
	modified:   stub/powerpc-darwin.macho-entry.h
	modified:   stub/powerpc-darwin.macho-upxmain.exe
	modified:   stub/powerpc-darwin.macho-upxmain.h
	modified:   stub/src/powerpc-darwin.macho-entry.S
	modified:   stub/src/powerpc-darwin.macho-upxsubr.S
	modified:   stub/tmp/powerpc-darwin.macho-entry.bin.dump
 2016-11-12 19:48:19 -08:00