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665 Commits

Author SHA1 Message Date
John Reiser
c8a3acbba8 Static executable with 4 PT_LOAD has only ELF headers in first PT_LOAD 
https://github.com/upx/upx/issues/615
 2022-11-02 10:03:25 -07:00
John Reiser
2354b01bad Adapt to libbfd: "no Shdrs" requires 0==.e_shentsize and 0==.e_shnum 
modified:   p_lx_elf.cpp
 2022-10-24 12:56:49 +02:00
John Reiser
d3ad6d25d8 PackLinuxElf64::asl_pack2_Shdrs() for better fit in logical flow 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2022-10-24 12:56:49 +02:00
John Reiser
2e29f9fa5f pack2() fixes for --android-shlib 
WIP for https://github.com/upx/upx/issues/599
	modified:   p_lx_elf.cpp
 2022-10-24 12:56:49 +02:00
John Reiser
5d9f71bb13 asl_pack1_Shdrs() 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2022-10-24 12:56:49 +02:00
John Reiser
82ed25bb44 Major fix 64-bit un_shlib_1() and unpack(), but not --android-shlib 
Also canUnpack() is really a 'bool' which sets overlay_offset
when 'true'; confusing!
        https://github.com/upx/upx/issues/599 (partial)
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.h
 2022-10-24 12:56:49 +02:00
John Reiser
48ad5513ff un_shlib_1() allows test mode ("-t") which has (nullptr == fo) 
modified:   p_lx_elf.cpp
 2022-10-07 12:52:21 -07:00
Markus F.X.J. Oberhumer
0f42579e68 src: fix djgpp and musl builds 2022-10-02 20:00:30 +02:00
Markus F.X.J. Oberhumer
b4cb9f8b2f src: silence some bogus GitHub CodeQL warnings; add MemBuffer "+" overload 2022-09-17 07:53:14 +02:00
Markus F.X.J. Oberhumer
c75d7a685d src: major cleanups, introduce new eXtended Span class 
- initial minimally invasive eXtended Span implementation
- rename ptr_diff to ptr_diff_bytes
- move some files to util subdir
- lots of cleanups
- start using the new checked pointers - this needs some real-world testing
 2022-09-16 13:26:13 +02:00
Markus F.X.J. Oberhumer
d001a63bce Welcome 2022. 2022-09-04 04:24:39 +02:00
John Reiser
acad3c3000 DT_INIT_ARRAY noes not pertain to DT_* for symbol table info 
https://github.com/upx/upx/issues/586
	modified:   p_lx_elf.cpp
 2022-07-02 20:52:18 -07:00
John Reiser
c1311c78a3 Extra space to force "git commit" to force rebuild for tagging Issue 
https://github.com/upx/upx/issues/577
	modified:   p_lx_elf.cpp
 2022-05-30 15:19:18 -07:00
John Reiser
717150b7f3 Stupid MSVC: bad C4706: assignment within conditional expression 
-    for (unsigned j=0; (k = dt_names[j]); ++j) {
+    for (unsigned j=0; ((k = dt_names[j]), k); ++j) {

The complaint was:
    p_lx_elf.cpp(5710) : warning C4706: assignment within conditional expression
which is INCORRECT, as shown in the change which is 100% equivalent.
The assignment occurs BEFORE the conditional expression.
	modified:   p_lx_elf.cpp
 2022-05-30 15:09:34 -07:00
John Reiser
a68c62d938 More placate compilers 
https://github.com/upx/upx/issues/577
	modified:   p_lx_elf.cpp
 2022-05-30 15:02:53 -07:00
John Reiser
c11f8a569a Placate 'clang' -Wcast-align 
https://github.com/upx/upx/issues/577
	modified:   p_lx_elf.cpp
 2022-05-30 14:55:39 -07:00
John Reiser
03436d2415 Bug in handling DT_GNU_HASH table. 
Fix includes a more-general and stronger heuristic to find the end of
GNU_HASH table when there is no ElfXX_Shdr for it.  64-bit only for now.
(This is needed to help prevent SIGSEGV when processing tampered .exe.)

https://github.com/upx/upx/issues/577
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2022-05-30 14:24:21 -07:00
John Reiser
78c555b4a6 Handle old-style compressed main programs when de-compressing 
modified:   p_lx_elf.cpp
 2022-03-22 19:20:09 -07:00
John Reiser
e7ca5c54ff Fix --brute for p_lx_elf.cpp, which compresses multiple pieces 
Force all pieces to use the same de-compressor.
(Future: allow each PT_LOAD to choose its own.)
Has minor wobbles due to page alignment, and size of de-compressor.
64-bit only for now.
https://github.com/upx/upx/issues/570
https://github.com/upx/upx/issues/297
	modified:   p_lx_elf.cpp
	modified:   p_unix.cpp
	modified:   packer.cpp
	modified:   packer.h
 2022-03-22 11:46:25 -07:00
John Reiser
663d6b466b WIP: clarify compressWithFilters; reduce size of obuf for PackLinuxElf64 
modified:   p_lx_elf.cpp
	modified:   packer.cpp
	modified:   packer.h
 2022-03-21 13:49:46 -07:00
John Reiser
34df0d6ef1 More empty HASH and/or GNU_HASH when Rust-musl 
https://github.com/upx/upx/issues/568
	modified:   p_lx_elf.cpp
 2022-03-12 14:21:51 -08:00
John Reiser
e5aeea9ed2 Check more carefully in invert_pt_dynamic() 
https://github.com/upx/upx/issues/566
	modified:   p_lx_elf.cpp
 2022-02-28 07:55:49 -08:00
John Reiser
5bcf9dd8af Do not complain for minimal DT_GNU_HASH as by Rust. 
Also: .p_type is 32 bits only!

https://github.com/upx/upx/issues/525
	modified:   p_lx_elf.cpp
 2021-12-25 12:39:31 -08:00
John Reiser
284adb203f Better checking of DT_HASH.nbuckets 
https://github.com/upx/upx/issues/507
	modified:   p_lx_elf.cpp
 2021-12-24 15:52:16 -08:00
John Reiser
adafa841f7 Some PT_LOAD must have (p_flags & PF_X) 
https://github.com/upx/upx/issues/511
	modified:   p_lx_elf.cpp
 2021-12-24 15:32:19 -08:00
John Reiser
fdc5d25d03 Require DT_STRSZ 
https://github.com/upx/upx/issues/512
	modified:   p_lx_elf.cpp
 2021-12-24 15:08:22 -08:00
John Reiser
bd441e83ae WIP: de-compression of old-style shlib 
modified:   p_lx_elf.cpp
 2021-09-06 08:43:20 -07:00
John Reiser
c9f6a3583c WIP 64-bit shlib 
modified:   p_lx_elf.cpp
 2021-08-07 06:45:01 -07:00
John Reiser
076aaf829a WIP: Elf64 shlib compress+decompress seems to work 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
 2021-07-05 13:47:19 -07:00
John Reiser
85f0c5a445 WIP: Elf64 shlib cleanup 
modified:   file.cpp
	modified:   file.h
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2021-07-02 18:33:38 -07:00
John Reiser
d5263a56ce WIP: handling shared library 
modified:   p_lx_elf.cpp
	modified:   p_unix.cpp
	modified:   p_unix.h
 2021-05-22 16:03:53 -07:00
John Reiser
181c752488 WIP: un_shlib_1 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2021-05-08 11:14:31 -07:00
John Reiser
333a288248 shlib: Don't compress below xct_off (except Elf headers) 
modified:   p_lx_elf.cpp
 2021-04-11 15:16:34 -07:00
John Reiser
613df414ed Fix off-by-1 in invert_pt_dynamic; SHT_NOBITS occupies no space 
modified:   p_lx_elf.cpp
 2021-04-11 15:09:55 -07:00
John Reiser
be050693f2 PackLinuxElf::canUnpack must checkEhdr() for ELF input 
https://github.com/upx/upx/issues/485
	modified:   p_lx_elf.cpp
 2021-04-10 10:11:48 -07:00
John Reiser
78f48d65d5 Allow 0==nbucket for DT_HASH, DT_GNU_HASH 
static linked 'Rust' program with no symbols
https://github.com/upx/upx/issues/476
 2021-03-25 07:22:01 -07:00
John Reiser
b81ec224b7 Fix headway argument to invert_pt_dynamic() 
https://github.com/upx/upx/issues/473
	modified:   p_lx_elf.cpp
 2021-03-25 07:10:40 -07:00
John Reiser
4be6cfebcd get_te32() when checking DT_GNU_HASH chains (MIPS .so) 
https://github.com/upx/upx/issues/473
        modified:   p_lx_elf.cpp
 2021-03-23 18:21:45 -07:00
John Reiser
98973dd8b9 get_te32() when checking DT_HASH chains (MIPS .so) 
https://github.com/upx/upx/issues/473
	modified:   p_lx_elf.cpp
 2021-03-23 06:45:01 -07:00
John Reiser
1218b6ff2a Check more in invert_pt_dynamic 
https://github.com/upx/upx/issues/471
	modified:   p_lx_elf.cpp
 2021-03-16 18:46:11 -07:00
John Reiser
0a69e7803b Fix errors detected by "make run-testsuite". 
total_out does not matter when option -t writes no output file.
Subtle error in generateElfHdr() [noted by address sanitizer].
New member function is_LOAD32() to avoid confusion with (1+ LO_PROC).
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2021-03-06 15:31:56 -08:00
John Reiser
0a1d24d1d9 Remove nit from PackLinuxElf64::generateElfHdr [address sanitizer] 
modified:   p_lx_elf.cpp
 2021-03-05 16:33:25 -08:00
John Reiser
35555bfb8a WIP: PackLinuxElf64::unpack working for shared libraries (non-Android) 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
 2021-03-05 16:20:36 -08:00
John Reiser
c9cb42df40 WIP: hacking un_shlib_1 
modified:   p_lx_elf.cpp
 2021-02-28 17:12:20 -08:00
John Reiser
2be03028f4 WIP: un_shlib_1 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2021-02-27 19:27:12 -08:00
John Reiser
182e0796df Split PackLinuxElf64::unpack for main program vs shared library 
modified:   p_lx_elf.cpp
 2021-02-22 16:15:03 -08:00
John Reiser
fb844a8ed1 total_in, total_out move to PackUnix 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_lx_interp.cpp
	modified:   p_mach.cpp
	modified:   p_unix.cpp
	modified:   p_unix.h
 2021-02-22 16:13:40 -08:00
John Reiser
23f63e4196 WIP unpacking ELF shared library 
modified:   Makefile
	modified:   lzma-sdk
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_mach.cpp
	modified:   p_unix.cpp
	modified:   p_unix.h
	modified:   packer.cpp
	modified:   packer.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/src/arm64-linux.elf-fold.S
	modified:   stub/tmp/arm64-linux.elf-fold.map
 2021-01-15 14:11:09 -08:00
Markus F.X.J. Oberhumer
9131d5216f Welcome 2021. 2021-01-01 20:39:22 +01:00
John Reiser
13bc031163 Check DT_REL/DT_RELA, DT_RELSZ/DT_RELASZ 
https://github.com/upx/upx/issues/421
	modified:   p_lx_elf.cpp
 2020-12-11 13:38:18 -08:00
Markus F.X.J. Oberhumer
f7e2266c3f Start using some C++ 14 features. 2020-12-08 05:40:17 +01:00
John Reiser
7841e15583 Prefer MemBuffer instead of New()+delete 
https://github.com/upx/upx/issues/428
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2020-12-05 10:31:55 -08:00
Markus F.X.J. Oberhumer
94e72238f2 Fix some warnings. 2020-12-03 03:10:12 +01:00
John Reiser
e6ccef2cf1 MSVC strikes again 
modified:   p_lx_elf.cpp
 2020-09-05 19:19:11 -07:00
John Reiser
be61e9f584 Fix 64-bit ET_EXEC 
https://github.com/upx/upx/issues/405
	modified:   p_lx_elf.cpp
	modified:   stub/src/amd64-linux.elf-main.c

	modified:   ../.github/travis_testsuite_1-expected_sha256sums.sh
	modified:   stub/amd64-linux.elf-fold.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/powerpc64-linux.elf-fold.h
	modified:   stub/powerpc64le-linux.elf-fold.h
	modified:   stub/tmp/amd64-linux.elf-fold.map
	modified:   stub/tmp/arm64-linux.elf-fold.map
	modified:   stub/tmp/powerpc64-linux.elf-fold.map
	modified:   stub/tmp/powerpc64le-linux.elf-fold.map
 2020-09-04 10:21:14 -07:00
John Reiser
c1a55b063e 0==e_shnum obviates testing of e_shoff 
modified:   p_lx_elf.cpp
 2020-07-26 20:00:05 -07:00
John Reiser
77c914bce5 Check de-compressed SHT_SYMTAB 
https://github.com/upx/upx/issues/396
	modified:   p_lx_elf.cpp
 2020-07-25 09:28:02 -07:00
John Reiser
cc60f03b2e Check Shdr more 
https://github.com/upx/upx/issues/395
	modified:   p_lx_elf.cpp
 2020-07-25 08:19:45 -07:00
John Reiser
cc9ccdbbd1 Check .sh_offset and .sh_size in SHT_DYNAMIC and SHT_STRNDX 
https://github.com/upx/upx/issues/394
	modified:   p_lx_elf.cpp
 2020-07-25 07:41:43 -07:00
John Reiser
9dfc8f573c Avoid 0==nbucket 
https://github.com/upx/upx/issues/393
	modified:   p_lx_elf.cpp
 2020-07-23 05:44:18 -07:00
John Reiser
4e2fdb464a Defend against bad PT_DYNAMIC 
https://github.com/upx/upx/issues/391
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2020-07-23 05:09:52 -07:00
John Reiser
73b854874e Defend against junk PT_DYNAMIC 
https://github.com/upx/upx/issues/390
	modified:   p_lx_elf.cpp
 2020-07-23 04:14:34 -07:00
John Reiser
0016512df1 Unpack: Phdrs must be within expansion of first compressed block 
https://github.com/upx/upx/issues/388
	modified:   p_lx_elf.cpp
 2020-07-22 19:34:27 -07:00
John Reiser
527139978a DT_HASH chains might be trimmed (64-bit, too) 
https://github.com/upx/upx/issues/383
	modified:   p_lx_elf.cpp
 2020-06-08 12:37:53 -07:00
John Reiser
47bc68fa6b DT_HASH chains might be trimmed 
https://github.com/upx/upx/issues/383
	modified:   p_lx_elf.cpp
 2020-06-07 19:35:49 -07:00
John Reiser
963392a5ae De-compress (upx -d) for ELF pageholes 
modified:   p_lx_elf.cpp
 2020-05-30 13:54:11 -07:00
John Reiser
a817ed0692 uintptr_t for MSVC 
modified:   p_lx_elf.cpp
 2020-05-23 11:02:46 -07:00
John Reiser
828a6cf07b invert_pt_dynamic() more checking 
https://github.com/upx/upx/issues/378
https://github.com/upx/upx/issues/379
	modified:   p_lx_elf.cpp
 2020-05-23 10:51:03 -07:00
John Reiser
962c35aa08 More checking of DT_GNU_HASH and DT_HASH tables 
https://github.com/upx/upx/issues/381
	modified:   p_lx_elf.cpp
 2020-05-23 10:04:38 -07:00
John Reiser
b327645e64 More checking of DT_GNU_HASH and DT_HASH tables 
https://github.com/upx/upx/issues/380
	modified:   p_lx_elf.cpp
 2020-05-23 09:41:41 -07:00
John Reiser
6272152dfe phdr[C_BASE].p_memsz for ET_EXEC 
modified:   p_lx_elf.cpp
 2020-05-25 14:11:46 -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
926481dace ELF layout for page holes when runtime PAGE_SIZE < .p_align 
amd64 works
	modified:   p_lx_elf.cpp
	modified:   stub/src/amd64-linux.elf-entry.S
	modified:   stub/src/amd64-linux.elf-fold.S
	modified:   stub/src/amd64-linux.elf-main.c
	modified:   Makefile
	modified:   stub/amd64-linux.elf-entry.h
	modified:   stub/amd64-linux.elf-fold.h
	modified:   stub/amd64-linux.shlib-init.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/powerpc64-linux.elf-fold.h
	modified:   stub/powerpc64le-linux.elf-fold.h
	modified:   stub/src/amd64-linux.shlib-init.S
	modified:   stub/tmp/amd64-linux.elf-entry.bin.dump
	modified:   stub/tmp/amd64-linux.elf-fold.map
	modified:   stub/tmp/amd64-linux.shlib-init.bin.dump
	modified:   stub/tmp/arm64-linux.elf-fold.map
	modified:   stub/tmp/powerpc64-linux.elf-fold.map
	modified:   stub/tmp/powerpc64le-linux.elf-fold.map
 2020-05-09 08:05:05 -07:00
John Reiser
a3b2cde58d max_bucket versus symbias 
modified:   p_lx_elf.cpp
 2020-04-17 17:09:47 -07:00
John Reiser
30f37d2cc6 DT_GNU_HASH check the buckets 
https://github.com/upx/upx/issues/365
	modified:   p_lx_elf.cpp
 2020-04-17 16:49:54 -07:00
John Reiser
c4d61dd9fe --preserve-build-id for ET_EXEC 
https://github.com/upx/upx/issues/371
	modified:   p_lx_elf.cpp
 2020-04-17 16:17:29 -07:00
John Reiser
210870f840 invert_pt_dynamic() DT_GNU_HASH trims hash array for Rust and Android 
https://github.com/upx/upx/issues/369
	modified:   p_lx_elf.cpp
 2020-04-15 17:29:03 -07:00
John Reiser
4cb4bd38eb check_pt_dynamic() checks PT_DYNAMIC.p_memsz 
https://github.com/upx/upx/issues/368
	modified:   p_lx_elf.cpp
 2020-04-15 14:24:05 -07:00
John Reiser
58c6d19f7c unpack() checks PT_DYNAMIC.p_filesz 
https://github.com/upx/upx/issues/367
	modified:   p_lx_elf.cpp
 2020-04-15 14:12:06 -07:00
John Reiser
c67a5d677c More bounds checking for DT_INIT (etc.) in shlib 
https://github.com/upx/upx/issues/364
	modified:   p_lx_elf.cpp
 2020-04-13 17:08:49 -07:00
John Reiser
740b4ff865 ELF shared lib: PT_DYNAMIC might be below xct_off, such as MIPS 
https://github.com/upx/upx/issues/298
	modified:   p_lx_elf.cpp
 2020-02-15 15:04:44 -08:00
John Reiser
342b1b7d6c EM_PPC64 forgot get_te16(&...) for ehdri.e_machine 
So compression on big-endian host was not correct.
https://github.com/upx/upx/issues/334
	modified:   p_lx_elf.cpp
 2020-01-19 18:48:50 -08:00
John Reiser
e2f60adc95 Detect 0==DT_SYMTAB in invert_pt_dynamic() 
https://github.com/upx/upx/issues/333
	modified:   p_lx_elf.cpp
 2020-01-14 18:45:52 -08:00
John Reiser
1bb93d4fce Detect bad e_shstrtab better. 
https://github.com/upx/upx/issues/332
	modified:   p_lx_elf.cpp
 2020-01-13 17:26:31 -08:00
John Reiser
eb90eab632 Detect bogus DT_SYMENT. 
https://github.com/upx/upx/issues/331
	modified:   p_lx_elf.cpp
 2020-01-13 17:10:02 -08:00
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
cb5f590e10 More hacking Android shlib. 
https://github.com/upx/upx/issues/318
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
 2019-12-12 20:23:33 -08:00
John Reiser
5ed9c66ed9 Hack Android shared libraries on arm64. 
https://github.com/upx/upx/issues/318
	modified:   p_lx_elf.cpp
 2019-12-12 17:05:50 -08:00
John Reiser
b8f52d14f4 user_init_va on AARCH64 
https://github.com/upx/upx/issues/318  (work-in-progress)
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
 2019-12-04 14:26:46 -08:00
John Reiser
5d295c24f0 DT_NEEDED can be duplicated 
modified:   p_lx_elf.cpp
 2019-11-26 19:33:27 -08:00
John Reiser
8be9da8280 Avoid bogus values in PT_DYNAMIC segment. 
Detect duplicate DT_*.
Detect out-of-bounds hashtab and gashtab.
Detect missing DT_REL, DT_RELA.
Detect out-of-bounds d_val.
https://github.com/upx/upx/issues/317
	modified:   p_lx_elf.cpp
 2019-11-23 20:06:14 -08:00
John Reiser
23570097cf MSVC barfs on {unsigned == long int) [because sizeof() is the same!] 
https://github.com/upx/upx/issues/283
	modified:   p_lx_elf.cpp
 2019-07-14 13:39:09 -07:00
John Reiser
593a69ce25 PT_LOAD[0] with ElfXX.Ehdr only 
https://github.com/upx/upx/issues/283
	modified:   p_lx_elf.cpp
 2019-07-14 13:08:56 -07:00
John Reiser
49766388bc Fix compression and de-compression of Android shared libraries 
Handle relocation (and DT_INIT_ARRAY[0]==NULL) when !DT_INIT.
Warn about missing --android-shlib if (ET_DYN && !DF_1_PIE && Arm*).
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
https://github.com/upx/upx/issues/265
https://github.com/upx/upx/issues/262
https://github.com/upx/upx/issues/259
https://github.com/upx/upx/issues/243
https://github.com/upx/upx/issues/229
https://github.com/upx/upx/issues/220
 2019-04-14 19:59:08 -07:00
John Reiser
f23267bddd Fix rotate+lop of PT_INTERP in shared library 
Found while working on https://github.com/upx/upx/issues/262
but probably does not help that bug.
	modified:   p_lx_elf.cpp
 2019-04-01 21:35:53 -07:00
John Reiser
d4e2d7e8a8 arm64 (aarch64) and PAGE_SIZE > 4KiB 
Future: use prctl(PR_SET_MM, PR_SET_MM_START_BRK, addr)
https://github.com/upx/upx/issues/254
	modified:   p_lx_elf.cpp
	modified:   stub/src/amd64-linux.elf-main.c
 2019-03-01 20:31:41 -08:00
Markus F.X.J. Oberhumer
3667fa4e44 Welcome 2019. 2019-02-15 11:04:09 +01:00
John Reiser
d1c80154f6 SHT_NOTE with ~SHF_ALLOC; as for 'gold' linker version 
https://github.com/upx/upx/issues/243
	modified:   p_lx_elf.cpp
 2019-02-12 21:13:24 -08:00
John Reiser
3c2bfc742e g++ -Wsign-compare is not as picky as MSVC warning C4018: '<': signed/unsigned mismatch 
https://github.com/upx/upx/issues/247
	modified:   p_lx_elf.cpp
 2019-02-09 08:04:58 -08:00
John Reiser
d60fef753f check_pt_load(); u32_t, u64_t; (off_t) is not unsigned! 
https://github.com/upx/upx/issues/247
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2019-02-01 19:31:57 -08:00
John Reiser
9719a7dd56 MSVC pettiness 
https://github.com/upx/upx/issues/238
	modified:   p_lx_elf.cpp
 2018-12-26 18:38:30 -08:00
John Reiser
c097233bf3 Stronger checks for DT_HASH, DT_GNU_HASH 
https://github.com/upx/upx/issues/238
	modified:   p_lx_elf.cpp
 2018-12-26 13:00:20 -08:00
John Reiser
69a583281f MemBuffer::subref() for 64-bit offsets; better diagnosis for bad .e_shoff 
https://github.com/upx/upx/issues/235 (POC14)
	modified:   mem.cpp
	modified:   mem.h
	modified:   p_lx_elf.cpp
 2018-12-16 16:00:15 -08:00
John Reiser
8e90c9af2b Corner cases for e_shnum vs e_shstrndx 
modified:   p_lx_elf.cpp
 2018-12-16 15:36:51 -08:00
John Reiser
a784284b7f Check user_init_off. Also remove '\n' from error messages. 
https://github.com/upx/upx/issues/235  POC11
	modified:   p_lx_elf.cpp
 2018-12-16 12:14:22 -08:00
John Reiser
0509edf08d ElfXX_Sym.st_name is always 32 bits 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2018-12-16 11:32:58 -08:00
John Reiser
7ca20f424f Typos 
modified:   p_lx_elf.cpp
 2018-12-15 21:17:26 -08:00
John Reiser
b74d51c2a8 More checking of e_shstrndx 
https://github.com/upx/upx/issues/235  POC6
	modified:   p_lx_elf.cpp
 2018-12-15 21:12:15 -08:00
John Reiser
58061cd121 Check .p_offset 
https://github.com/upx/upx/issues/235  POC13
	modified:   p_lx_elf.cpp
 2018-12-15 20:59:45 -08:00
John Reiser
b8f6be5389 More checking of DT_HASH and DT_GNU_HASH 
https://github.com/upx/upx/issues/235  POC12
	modified:   p_lx_elf.cpp
 2018-12-15 20:43:33 -08:00
John Reiser
7c766b3313 Check e_shstrndx and Shdr.st_name 
https://github.com/upx/upx/issues/235  POC10
	modified:   p_lx_elf.cpp
 2018-12-15 20:27:20 -08:00
John Reiser
91b81b587b Abandon when outrageous Elf64_Dyn.d_tag 
https://github.com/upx/upx/issues/235  POC8
	modified:   p_lx_elf.cpp
 2018-12-15 19:35:13 -08:00
John Reiser
780a4347b8 Check DT_HASH and DT_GNU_HASH. 
https://github.com/upx/upx/issues/235  POC2,POC4
Also cleanup checking of symbol number and .st_name
in POC1,POC3,POC5,POC7,POC9,POC11
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2018-12-15 19:16:14 -08:00
John Reiser
606ad08dd1 Check symbol number and .st_name 
https://github.com/upx/upx/issues/235  POC1,POC3,POC7,POC9
	modified:   p_elf_enum.h
	modified:   p_lx_elf.h
	modified:   p_lx_elf.cpp
 2018-12-14 21:32:49 -08:00
John Reiser
f88b85e126 MSVC error C4146: unary minus operator applied to unsigned type, result still unsigned 
modified:   p_lx_elf.cpp
 2018-10-09 20:27:19 -07:00
John Reiser
cb8b1595a1 Pay more attention to 0==.e_shnum 
modified:   p_lx_elf.cpp
 2018-10-09 19:38:43 -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
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
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
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
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
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
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
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
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
John Reiser
85f53b210d de-compression of arm64 --android-shlib 
modified:   src/p_lx_elf.cpp
	modified:   src/p_lx_elf.h
	modified:   src/stub/src/arm64-linux.shlib-init.S
 2018-01-24 15:39:46 -08:00
John Reiser
5d13c6cd01 elfout is unset for shlib in PackLinuxElf64::updateLoader 
modified:   p_lx_elf.cpp
 2018-01-22 16:15:53 -08:00
John Reiser
e1d20fd0b5 Fix wobble in PackLinuxElf64::pack2 
modified:   p_lx_elf.cpp
 2018-01-22 13:48:26 -08:00
John Reiser
d1035ecd8f Fix PLT for --android-shlib 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2018-01-22 13:05:18 -08:00
Markus F.X.J. Oberhumer
05e44b9644 Fix powerpc64 cross build. 2018-01-19 15:05:43 +01:00
Markus F.X.J. Oberhumer
021c8db58a Welcome 2018. 2018-01-19 10:55:32 +01:00
John Reiser
86745721ee MSVC strikes again 
modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
 2018-01-15 16:27:00 -08:00
John Reiser
c34fe09a79 Revamp --android-shlib 
Android "Oreo" wants to deal with ElfXX_Shdr[].  So splice 4KiB into PT_LOAD[0]
with an "extra" copy of them.  This requires careful relocation processing.
It also costs a page at run time, and an average of a page in the file
(depending on fragmentation at the boundary between r-x and rw- .)

https://github.com/upx/upx/issues/124
https://github.com/upx/upx/issues/139
https://github.com/upx/upx/issues/142

	modified:   p_elf_enum.h
	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
	modified:   stub/src/arm64-linux.shlib-init.S

	modified:   stub/arm.v5a-linux.shlib-init.h
	modified:   stub/arm.v5t-linux.shlib-init.h
	modified:   stub/arm64-linux.shlib-init.h

	modified:   ../.github/travis_testsuite_1.sh
 2018-01-15 16:08:34 -08:00
John Reiser
df94f4288a picky, picky 
modified:   p_lx_elf.cpp
 2018-01-11 12:09:43 -08:00
John Reiser
969efe687d MSVC pecadillos 
modified:   p_lx_elf.cpp
	modified:   pefile.cpp
 2018-01-11 12:01:00 -08:00