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621 Commits

Author SHA1 Message Date
John Reiser
905bfacf44 Pacify clang-tidy 2023-07-26 17:21:39 -07:00
Markus F.X.J. Oberhumer
053e95033f all: improve C++ static analyzers 2023-07-26 22:28:47 +02:00
John Reiser
745fef7425 fpad4, fpad8, and _Shdr hacking should guard against (!fo) 
Also pacify some clang scan-build complaints.
	modified:   p_lx_elf.cpp
 2023-07-26 07:27:12 -07:00
John Reiser
c9d625a237 Use 'elfout' for changing ElfXX_Ehdr 
https://github.com/upx/upx/issues/688
	modified:   p_lx_elf.cpp
 2023-07-26 07:15:22 +02:00
John Reiser
2684e815e0 Fix use of memfd_create for shlib stubs, espcially Android 
Also relocation of init_array[0] for Elf32 shlib.
        https://github.com/upx/upx/issues/220
        https://github.com/upx/upx/issues/609
        https://github.com/upx/upx/issues/680

	modified:   stub/src/amd64-linux.elf-so_main.c
	modified:   stub/src/i386-linux.elf-so_main.c
	modified:   p_lx_elf.cpp

	modified:   stub/src/arm.v4a-linux.elf-so_fold.S
	modified:   stub/src/arm64-linux.elf-so_entry.S
	modified:   stub/src/arm64-linux.elf-so_fold.S
	modified:   stub/src/i386-linux.elf-so_fold.S

	modified:   stub/amd64-linux.elf-so_fold.h
	modified:   stub/arm.v4a-linux.elf-so_fold.h
	modified:   stub/arm.v5a-linux.elf-so_fold.h
	modified:   stub/arm64-linux.elf-so_entry.h
	modified:   stub/arm64-linux.elf-so_fold.h
	modified:   stub/i386-linux.elf-so_fold.h
	modified:   stub/tmp/amd64-linux.elf-so_fold.bin.dump
 2023-07-26 07:15:22 +02:00
John Reiser
672d69c68a Fix unpacking of upx-3.94-armeb_linux/upx 
Getting past the code of the stub must deal with variances
between released versions.
	modified:   p_lx_elf.cpp
 2023-07-18 16:56:39 -07:00
Markus F.X.J. Oberhumer
5edfda46e5 all: clang-tidy updates 2023-07-08 09:59:41 +02:00
John Reiser
c429859cbf Placate Android dlopen() some more. 
https://github.com/upx/upx/issues/680
	modified:   p_lx_elf.cpp
 2023-07-06 10:08:41 +02:00
John Reiser
dc76b2af97 info(Android_penalty) 
modified:   p_lx_elf.cpp
 2023-06-26 09:09:47 -07:00
John Reiser
b4a793ed26 Make ::forward_Shdrs more friendly to Android dlopen() 
https://github.com/upx/upx/issues/220
https://github.com/upx/upx/issues/609
 2023-06-22 10:16:25 -07:00
Markus F.X.J. Oberhumer
08a72d5251 Fix whitespace. 2023-05-10 20:19:22 +02:00
John Reiser
736a6cd955 Catch amd64 ET_EXEC with .e_entry < 0x400000 
https://github.com/upx/upx/issues/673
	modified:   p_lx_elf.cpp
 2023-05-10 20:17:22 +02:00
John Reiser
75ce5e5df3 Fix SIGSEGV due to name confusion in ::forward_Shdrs 
https://github.com/upx/upx/issues/671
	modified:   p_lx_elf.cpp
 2023-05-10 20:17:22 +02:00
John Reiser
04ffb641a6 Compilers generate junk .sh_info 
modified:   p_lx_elf.cpp
 2023-04-24 19:37:25 -07:00
Markus F.X.J. Oberhumer
b1729e3bcf src: cleanup MAX_ELF_HDR 2023-04-19 23:23:46 +02:00
John Reiser
78b68283c4 Fix .e_entry for PowerPC64 
https://github.com/upx/upx/issues/668
	modified:   p_lx_elf.cpp
 2023-04-19 13:58:52 -07:00
John Reiser
d8395d8c42 Fix usage of _te32/_te64/_te16 for Elf classes 
How did it ever work?  UPX_RSIZE_MAX_MEM of 768MiB, Elf32_Off of only
32-bits, and preponderance of little-endian and small positive integers
hides many mis-uses of _te64/_te32.
ELF does not help: e_phnum, e_shnum, Elf32_Section, Elf64_Section are all
16-bit, but sh_info and sh_link are 32-bit.
Templatizing p_elf.h (following the example of p_mach.h) failed
because of complexity.  (Plus too many special cases of ELF where 32-bit
and 64-bit are not parallel.)
	modified:   p_lx_elf.cpp
	modified:   p_lx_sh.cpp
	modified:   p_mach.cpp
 2023-04-17 13:19:06 -07:00
John Reiser
a20c5a1e7f Align 64-bit forward_Shdr 
//github.com/upx/upx/issues/220
	modified:   p_lx_elf.cpp
 2023-04-12 14:54:49 -07:00
John Reiser
3bdfcaa541 Try to placate Android crapware, which cannot deal with null strings 
From https://github.com/upx/upx/issues/220 :

Phone:
04-10 16:07:52.862 E/AndroidRuntime( 5178): java.lang.UnsatisfiedLinkError: dlopen failed: \
"/data/app/~~Nwb-iR6LHpHyrT37xe8HNg==/com.android.support-y0YbcwLn1b4sBRD09JGVAw==/lib/arm64/libMyLibName.so" \
has unsupported e_shentsize: 0x0 (expected 0x40)

Emulator:
04-10 09:57:38.746 E/AndroidRuntime( 6403): java.lang.UnsatisfiedLinkError: dlopen failed: \
"/data/app/~~sBBMDvh36TxwO4muxOJ3Bg==/com.android.support-8Lc6r2dLzTIW7SEHXLI0XQ==/lib/arm64/libMyLibName.so" \
has no section headers

	modified:   p_lx_elf.cpp
 2023-04-11 13:41:54 -07:00
John Reiser
7b2faf2016 Elf64_Rela for shlib DT_INIT_ARRAY 
Also allow PT_PHDR in shlibs.
Also page align lo end of mmap, like mprotect.
        https://github.com/upx/upx/issues/664
	modified:   p_lx_elf.cpp
	modified:   stub/src/amd64-linux.elf-so_main.c
	modified:   stub/src/i386-linux.elf-so_main.c

	modified:   stub/src/amd64-linux.elf-so_fold.S
	modified:   stub/src/arm.v4a-linux.elf-fold.S
	modified:   stub/src/arm.v4a-linux.elf-so_fold.S
	modified:   stub/src/arm64-linux.elf-fold.S
	modified:   stub/src/arm64-linux.elf-so_fold.S
	modified:   stub/src/i386-linux.elf-so_fold.S

	modified:   stub/amd64-linux.elf-so_fold.h
	modified:   stub/arm.v4a-linux.elf-fold.h
	modified:   stub/arm.v4a-linux.elf-so_fold.h
	modified:   stub/arm.v5a-linux.elf-fold.h
	modified:   stub/arm.v5a-linux.elf-so_fold.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/arm64-linux.elf-so_fold.h
	modified:   stub/armeb.v4a-linux.elf-fold.h
	modified:   stub/i386-linux.elf-so_fold.h

	modified:   stub/tmp/amd64-linux.elf-so_fold.bin.dump
	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

	modified:   stub/src/arch/mips/r3000/macros.ash
	modified:   ../.github/travis_testsuite_1-expected_sha256sums.sh
 2023-04-11 11:00:48 -07:00
John Reiser
42902dabac 64-bit shlib with DT_INIT_ARRAY but no DT_INIT 
https://github.com/upx/upx/issues/664
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
 2023-04-10 18:01:39 -07:00
John Reiser
c72ceaa979 MSVC 
modified:   p_lx_elf.cpp
 2023-03-26 11:29:19 -07:00
John Reiser
8ac79ca0ad whitespce 
modified:   p_lx_elf.cpp
 2023-03-26 11:16:36 -07:00
John Reiser
b361b91ec7 Try to appease Android runtime loader; _Shdr vs _Phdr offsets 
JNI FalalError called: Unable to load library:
    [dlopen failed: "/lib/arm/libunity.so"
    .dynamic section has invalid offset: 0x6d3e58,
    expected to match PT_DYNAMIC offset: 0x441e58]
https://github.com/upx/upx/issues/609
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
 2023-03-26 10:53:30 -07:00
John Reiser
7b68aa7bdc Fix de-comression of shared libraries 
modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2023-03-26 07:23:08 -07:00
John Reiser
5d15e57294 De-compression for 32-bit shared libraries on i686, ARM 
https://github.com/upx/upx/issues/609
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2023-03-23 16:29:25 -07:00
John Reiser
06fae05910 32-bit ARM Android shlib: DT_INIT_ARRAY without DT_INIT 
De-compressor needs to catch up.
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   stub/src/i386-linux.elf-so_main.c
 2023-03-22 10:44:17 -07:00
John Reiser
1320e3efdb PackLinuxElf32::canPackOSABI() isolates canPack() from OSABI weirdness 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2023-03-16 08:30:06 -07:00
John Reiser
b74c4e4ac1 Picky, picky static analyzer 
https://github.com/upx/upx/actions/runs/4422867763/jobs/7755057541
	modified:   p_lx_elf.cpp
 2023-03-15 09:05:02 -07:00
John Reiser
35333403ef Zero ElfXX_Ehdr.e_sh* info when removing ElfXX_Shdr 
The aim is less confusion by static linkers: the _Shdr are gone!
https://github.com/upx/upx/issues/659
	modified:   p_lx_elf.cpp
 2023-03-15 08:44:59 -07:00
John Reiser
f8934c09ff F*ck MSVC 
warning C4245: 'return': conversion from 'int' to 'unsigned int', signed/unsigned mismatch
    return ~0;  // in function declared as returning 'unsigned'.  The bits are the same!
	modified:   p_lx_elf.cpp
 2023-03-09 12:00:56 -08:00
John Reiser
7a09c88e30 CI convention sucks 
renamed:    MAX_ELF_HDR.cpp -> MAX_ELF_HDR.h
	modified:   p_lx_elf.cpp
 2023-03-09 11:44:22 -08:00
John Reiser
17526d1132 Make it easier to change MAX_ELF_HDR consistently 
https://github.com/upx/upx/issues/655

	new file:   MAX_ELF_HDR.cpp
	new file:   stub/src/MAX_ELF_HDR.S
	new file:   stub/src/MAX_ELF_HDR.c

	modified:   p_lx_elf.cpp
	modified:   stub/arm.v4a-linux.elf-fold.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/src/amd64-linux.elf-fold.S
	modified:   stub/src/amd64-linux.elf-main.c
	modified:   stub/src/amd64-linux.elf-so_main.c
	modified:   stub/src/arm.v4a-linux.elf-fold.S
	modified:   stub/src/arm.v4a-linux.elf-so_fold.S
	modified:   stub/src/arm64-linux.elf-fold.S
	modified:   stub/src/arm64-linux.elf-so_fold.S
	modified:   stub/src/i386-bsd.elf-fold.S
	modified:   stub/src/i386-bsd.elf-main.c
	modified:   stub/src/i386-linux.elf-fold.S
	modified:   stub/src/i386-linux.elf-main.c
	modified:   stub/src/i386-linux.elf-so_main.c
	modified:   stub/src/i386-linux.elf.interp-fold.S
	modified:   stub/src/i386-linux.elf.interp-main.c
	modified:   stub/src/i386-linux.elf.shell-fold.S
	modified:   stub/src/i386-linux.elf.shell-main.c
	modified:   stub/src/i386-openbsd.elf-fold.S
	modified:   stub/src/i386-openbsd.elf-main.c
	modified:   stub/src/mipsel.r3000-linux.elf-fold.S
	modified:   ../.github/travis_testsuite_1-expected_sha256sums.sh
 2023-03-09 10:06:13 -08:00
John Reiser
ff7939c1c0 invert_pt_dynamic, sort_DTxx_offsets, elf_find_table_size 
https://github.com/upx/upx/issues/655
        modified:   p_lx_elf.cpp
        modified:   p_lx_elf.h
 2023-03-09 09:24:35 -08:00
John Reiser
96c196b1be Final ph.u_len and ph.c_len reflect multiple compressed extents 
https://github.com/upx/upx/issues/655
	modified:   ../.github/travis_testsuite_1-expected_sha256sums.sh
	modified:   p_lx_elf.cpp
 2023-03-09 09:06:06 -08:00
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
b8d9c2b755 all: assorted updates and cleanups 2023-02-05 17:20:32 +01:00
John Reiser
e86d9179aa Sync testsuite 
modified:   .github/travis_testsuite_1-expected_sha256sums.sh
	modified:   src/p_lx_elf.cpp
 2023-01-09 10:51:47 -08:00
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
John Reiser
64aa7540e2 Sync copyright year 2023 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
	modified:   p_unix.h
 2023-01-02 08:28:41 -08:00
Markus F.X.J. Oberhumer
dd1d5a92d2 all: welcome 2023 2023-01-01 19:49:30 +01:00
John Reiser
619aeb54ff Pesky "upx -t" mode 
https://github.com/upx/upx/issues/599
	modified:   p_lx_elf.cpp
 2022-12-30 10:29:25 -08:00
John Reiser
e56b748435 WIP fixing "upx -t" of shared library 
modified:   p_lx_elf.cpp
 2022-12-23 11:23:41 -08:00
John Reiser
fefce0d5c4 Cleanup "PT_LOAD gap recovery" during upx -d 
https://github.com/upx/upx/issues/635
	modified:   p_lx_elf.cpp
 2022-12-21 06:53:37 -08:00
John Reiser
1bed77e4d3 'sizeof' returns size_t, which on i386 is not as wide as off_t 
https://github.com/upx/upx/issues/629
https://github.com/upx/upx/issues/635
	modified:   p_lx_elf.cpp
 2022-12-20 07:21:02 -08:00
John Reiser
f2a68023fa MSVC error C4146: unary minus operator applied to unsigned type, result still unsigned 
modified:   p_lx_elf.cpp
 2022-12-19 16:14:48 -08:00
John Reiser
8ccffc40e3 A real typo that caused an error in "upx -d" de-compressing 
modified:   p_lx_elf.cpp
	modified:   ../.github/travis_testsuite_1-expected_sha256sums.sh
 2022-12-19 15:45:27 -08:00
John Reiser
dd8c1d0441 clang alignment 
modified:   p_lx_elf.cpp
 2022-12-19 14:31:26 -08:00
John Reiser
f9f28ff176 More work on "upx -d" de-compression 
https://github.com/upx/upx/issues/629
https://github.com/upx/upx/issues/635
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
 2022-12-19 13:49:43 -08:00
Markus F.X.J. Oberhumer
c23c7a9379 all: minor updates 2022-12-15 16:20:22 +01:00