febe8e4d9e
whitespace
...
modified: stub/src/arch/amd64/lzma_d.S
2024-08-25 15:16:28 -07:00
c924c32d54
ELF2: fix lzma on amd64-linux.elf-*
...
New -DWINDOWS_BACK so that amd64-win64.pe.h does not change.
This hides a real bug (unchecked), but would change anti-virus status.
modified: src/stub/src/amd64-expand.S
modified: src/stub/src/amd64-linux.elf-entry.S
modified: src/stub/src/amd64-linux.elf-fold.S
modified: src/stub/src/arch/amd64/lzma_d.S
modified: src/stub/Makefile
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
plus generated *.h, *.map, *.dump
2024-08-25 15:16:28 -07:00
c36977f0b1
ELF: amd64-linux main programs use 2-step de-compressor
...
The first $ARCH to move to 2-step de-compressor for ELF main programs.
De-compressor uses memfd_create to comply with strictest SELinux
settings (no PROT_WRITE on any PROT_EXEC page).
First step de-compressor always uses NRV2B to de-compress the second step,
and the second step can use a different de-compressor for each PT_LOAD.
modified: p_lx_elf.cpp
modified: stub/Makefile
modified: stub/src/amd64-linux.elf-fold.lds
modified: stub/src/amd64-linux.elf-entry.S
modified: stub/src/amd64-linux.elf-fold.S
new file: stub/src/amd64-linux.elf-main2.c
modified: stub/amd64-linux.elf-entry.h
modified: stub/amd64-linux.elf-fold.h
modified: stub/tmp/amd64-linux.elf-entry.bin.dump
modified: stub/tmp/amd64-linux.elf-fold.map
2024-08-25 15:16:28 -07:00
03c4184067
all: misc cleanups
2024-07-23 12:24:09 +02:00
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
62265a1bc9
fix typos
2024-05-07 01:41:41 -07:00
e5546bc8b0
32-bit ELF escape hatch when no fit on last executable page
...
... about 1/1000 (4/PAGE_SIZE) chance
modified: src/stub/src/i386-linux.elf-main.c
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
plus all 32-bit elf-fold.h, elf-fold.map
2024-05-06 09:42:13 -07:00
f0cb30e2b9
all: minor cleanups
2024-05-02 18:50:23 +02:00
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
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
ddf2da3d76
cmake: run tests in parallel; misc/podman: add 30-rebuild-stubs.sh
2024-04-26 10:36:01 +02:00
265c100845
PowerPC64 nrv2d decompressor
...
https://github.com/upx/upx/issues/813
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: src/stub/src/arch/powerpc/64le/nrv2d_d.S
modified: src/stub/powerpc64-darwin.dylib-entry.h
modified: src/stub/powerpc64-darwin.macho-entry.h
modified: src/stub/powerpc64-linux.elf-entry.h
modified: src/stub/powerpc64le-linux.elf-entry.h
modified: src/stub/powerpc64le-linux.kernel.vmlinux.h
2024-04-24 14:37:09 -07:00
84e8288f61
Propagate yesterday's fix to stub decoding on PowerPC
...
https://github.com/upx/upx/issues/813
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: src/stub/src/arch/powerpc/32/nrv2d_d.S
modified: src/stub/src/arch/powerpc/32/nrv2e_d.S
modified: src/stub/src/arch/powerpc/64le/nrv2b_d.S
modified: src/stub/src/arch/powerpc/64le/nrv2d_d.S
modified: src/stub/powerpc-darwin.dylib-entry.h
modified: src/stub/powerpc-darwin.macho-entry.h
modified: src/stub/powerpc-linux.elf-entry.h
modified: src/stub/powerpc-linux.kernel.vmlinux.h
modified: src/stub/powerpc64-darwin.dylib-entry.h
modified: src/stub/powerpc64-darwin.macho-entry.h
modified: src/stub/powerpc64-linux.elf-entry.h
modified: src/stub/powerpc64le-linux.elf-entry.h
modified: src/stub/powerpc64le-linux.kernel.vmlinux.h
modified: src/stub/tmp/powerpc-darwin.dylib-entry.bin.dump
modified: src/stub/tmp/powerpc-darwin.macho-entry.bin.dump
modified: src/stub/tmp/powerpc-linux.elf-entry.bin.dump
modified: src/stub/tmp/powerpc-linux.kernel.vmlinux.bin.dump
modified: src/stub/tmp/powerpc64-darwin.dylib-entry.bin.dump
modified: src/stub/tmp/powerpc64-darwin.macho-entry.bin.dump
modified: src/stub/tmp/powerpc64-linux.elf-entry.bin.dump
modified: src/stub/tmp/powerpc64le-linux.elf-entry.bin.dump
modified: src/stub/tmp/powerpc64le-linux.kernel.vmlinux.bin.dump
2024-04-24 10:36:55 -07:00
6db0af8d04
PowerPC cannot branch on CArry; requires contortions
...
https://github.com/upx/upx/issues/813
modified: src/stub/src/arch/powerpc/32/nrv2b_d.S
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: src/stub/powerpc-darwin.dylib-entry.h
modified: src/stub/powerpc-darwin.macho-entry.h
modified: src/stub/powerpc-linux.elf-entry.h
modified: src/stub/powerpc-linux.kernel.vmlinux.h
modified: src/stub/src/i386-linux.elf-main.c
modified: src/stub/tmp/powerpc-darwin.dylib-entry.bin.dump
modified: src/stub/tmp/powerpc-darwin.macho-entry.bin.dump
modified: src/stub/tmp/powerpc-linux.elf-entry.bin.dump
modified: src/stub/tmp/powerpc-linux.kernel.vmlinux.bin.dump
2024-04-23 17:40:07 -07:00
9fb64ded10
Syscall on powerpc linux wipes arg registers, unlike x86_64
...
Also squeaky-clean 'get_page_mask' for I/D cache consistency.
https://github.com/upx/upx/issues/813
modified: stub/powerpc-linux.elf-entry.h
modified: stub/powerpc-linux.elf-fold.h
modified: stub/src/powerpc-linux.elf-entry.S
modified: stub/src/powerpc-linux.elf-fold.S
modified: stub/tmp/powerpc-linux.elf-entry.bin.dump
modified: stub/tmp/powerpc-linux.elf-fold.map
2024-04-21 19:46:05 -07:00
91f5fe1c0e
arm64 --nrv2d instruction confusion
...
https://github.com/upx/upx/issues/806
ARM Architecture Reference Manual
ARMv8, for ARMv8-A architecture profile
Section C6.2.47, page C6-595 (note the 'invert'!)
CINC <Wd>, <Wn>, <cond>
is equivalent to
CSINC <Wd>, <Wn>, <Wn>, invert(<cond>)
modified: src/stub/src/arch/arm64/v8/nrv2d_d32.S
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: src/stub/arm64-darwin.macho-entry.h
modified: src/stub/arm64-linux.elf-entry.h
modified: src/stub/arm64-linux.elf-so_fold.h
modified: src/stub/arm64-linux.shlib-init.h
modified: src/stub/arm64-win64.pe.h
2024-04-07 14:01:19 -07:00
bb816f0c74
arm64 --nrv2d preserve sign when decoding offset
...
https://github.com/upx/upx/issues/806
modified: src/stub/arm64-darwin.macho-entry.h
modified: src/stub/arm64-linux.elf-entry.h
modified: src/stub/arm64-linux.elf-so_fold.h
modified: src/stub/arm64-linux.shlib-init.h
modified: src/stub/arm64-win64.pe.h
modified: src/stub/src/arch/arm64/v8/nrv2d_d32.S
2024-04-06 16:16:28 -07:00
93abe97ea5
powerpc64le --nrv2d register conflict
...
modified: stub/powerpc64-darwin.dylib-entry.h
modified: stub/powerpc64-darwin.macho-entry.h
modified: stub/powerpc64-linux.elf-entry.h
modified: stub/powerpc64le-linux.elf-entry.h
modified: stub/powerpc64le-linux.kernel.vmlinux.h
modified: stub/src/arch/powerpc/64le/nrv2d_d.S
modified: stub/src/arch/powerpc/64le/nrv2e_d.S
https://github.com/upx/upx/issues/806
2024-04-06 16:16:28 -07:00
f29791470f
all: yet more cleanups
2024-03-10 16:23:06 +01:00
41f6945be1
Fix auxv_up() to avoid SIGSEGV under valgrind
...
https://github.com/upx/upx/issues/784
modified: stub/src/amd64-linux.elf-main.c
modified: stub/src/i386-linux.elf-main.c
modified: ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
plus all generated stub/*-linux.elf-fold.{h,map}
2024-02-03 13:58:53 -08:00
38ed4b2017
arm32, arm64 ABI for -static must preserve register 0
...
Also arm32 forgot to unmap the expanded de-compressor via the escape hatch.
https://github.com/upx/upx/issues/758
https://github.com/upx/upx/issues/768
modified: ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: stub/src/arm.v4a-linux.elf-entry.S
modified: stub/src/arm.v4a-linux.elf-fold.S
modified: stub/src/arm64-linux.elf-entry.S
modified: stub/src/arm64-linux.elf-fold.S
modified: stub/src/i386-linux.elf-main.c
modified: stub/src/amd64-linux.elf-main.c
plus associated *.h *.map *.dump
2024-01-12 15:39:18 -08:00
09c5e38322
arm64-linux.elf ABI owns x0 at execve()?
...
https://github.com/upx/upx/issues/758
modified: ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: stub/arm64-linux.elf-fold.h
modified: stub/src/amd64-linux.elf-main.c
modified: stub/src/arm64-linux.elf-fold.S
modified: stub/tmp/arm64-linux.elf-fold.map
2024-01-09 12:17:01 -08:00
fe6f1f0bb6
arm64-linux.elf-fold.S typo (eyesight)
...
https://github.com/upx/upx/issues/743
modified: misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: src/stub/arm64-linux.elf-fold.h
modified: src/stub/src/arm64-linux.elf-fold.S
2024-01-09 10:01:07 -08:00
47fc230893
all: welcome 2024
2024-01-03 17:47:25 +01:00
d4e94f5086
Fix varying page size on arm64
...
https://github.com/upx/upx/issues/734
modified: stub/src/amd64-linux.elf-fold.S
modified: stub/src/amd64-linux.elf-main.c
modified: stub/src/arm64-linux.elf-entry.S
modified: stub/src/arm64-linux.elf-fold.S
modified: ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
... plus associated stub/*.h etc
2023-11-17 15:10:31 -08:00
52400e2561
/proc/self/exe now is optional
...
... for the benefit of 'unshare', 'chroot', etc.
If not present, then upx run-time stub unmaps all pages of original main program.
https://github.com/upx/upx/issues/721
modified: stub/src/amd64-linux.elf-entry.S
modified: stub/src/amd64-linux.elf-fold.S
modified: stub/src/arm.v4a-linux.elf-entry.S
modified: stub/src/arm.v4a-linux.elf-fold.S
modified: stub/src/arm64-linux.elf-entry.S
modified: stub/src/arm64-linux.elf-fold.S
modified: stub/src/i386-linux.elf-fold.S
modified: stub/src/mipsel.r3000-linux.elf-fold.S
modified: stub/src/powerpc-linux.elf-fold.S
modified: stub/src/powerpc64le-linux.elf-fold.S
modified: ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
... plus all associaed *.h, *.map, *.dump in stub/
2023-10-30 08:23:52 -07:00
f62576a2be
CI updates and minor cleanups
2023-10-30 14:15:35 +01:00
19bf9f59e9
src: clang-format stub/tools/armpe/armpe_tester.c
2023-10-30 13:07:20 +01:00
1dd96a7628
src/pefile: stricter reloc checks; cleanups
2023-10-23 14:26:37 +02:00
67548a4d9a
src: minor cleanups
2023-10-22 00:45:06 +02:00
a1d090a6fd
src/stub: add a "clang-format off" directive
2023-10-15 10:55:15 +02:00
65b06f6046
More LZMA inSize (srclen) defense
...
https://github.com/upx/upx/issues/717
modified: stub/src/amd64-darwin.dylib-entry.S fixed
modified: stub/src/amd64-darwin.macho-entry.S fixed
modified: stub/src/amd64-linux.elf-so_entry.S comment-only
modified: stub/src/i386-linux.elf-so_entry.S comment-only
modified: stub/amd64-darwin.dylib-entry.h
modified: stub/amd64-darwin.macho-entry.h
modified: stub/amd64-linux.elf-so_entry.h
modified: stub/tmp/amd64-darwin.dylib-entry.bin.dump
modified: stub/tmp/amd64-darwin.macho-entry.bin.dump
modified: stub/tmp/amd64-linux.elf-so_entry.bin.dump
Find+fix steps that were performed:
1. Find all 'add' instructions that compute "eof".
NRV run-time decompressors ignore srclen, so 'add' can be ignored for them.
$ cd upx-devel4/src/stub
$ grep -sr 'add.*eof' src | grep -v 'nrv2._d.*.S' | sort
src/amd64-darwin.dylib-entry.S: addq src,lsrc; push lsrc // &input_eof
src/amd64-darwin.macho-entry.S: addq src,lsrc; push lsrc // &input_eof
src/amd64-linux.elf-entry.S: addq src,lsrc; push lsrc // &input_eof
src/amd64-linux.elf-so_entry.S: addq src,lsrc; push lsrc // MATCH_05 &input_eof
src/amd64-linux.elf-so_main.c: void *mfd_addr = Pmap(0, sizeof(code), PROT_READ|PROT_EXEC, MAP_PRIVATE, mfd, 0);
src/amd64-linux.shlib-init.S: addq src,lsrc; push lsrc // &input_eof
src/arch/amd64/lzma_d.S:// addq src,lsrc; push lsrc // &input_eof
src/i386-expand.S: add src,%ecx; push %ecx // MATCH_52 eof_src
src/i386-linux.elf-so_entry.S: add src,lsrc; push lsrc // MATCH_05 &input_eof
2. Case-by-case inspection
src/amd64-darwin.dylib-entry.S: addq src,lsrc; push lsrc // &input_eof
restoring 'subq' is added in this commit
src/amd64-darwin.macho-entry.S: addq src,lsrc; push lsrc // &input_eof
restoring 'subq' is added in this commit
src/amd64-linux.elf-entry.S: addq src,lsrc; push lsrc // &input_eof
a restoring 'subq' is already next
src/amd64-linux.elf-so_entry.S: addq src,lsrc; push lsrc // MATCH_05 &input_eof
lsrc is dead for inlined nrv2b
src/amd64-linux.elf-so_main.c: void *mfd_addr = Pmap(0, sizeof(code), PROT_READ|PROT_EXEC, MAP_PRIVATE, mfd, 0);
.c code
src/amd64-linux.shlib-init.S: addq src,lsrc; push lsrc // &input_eof
restoring 'subq' is already next
src/arch/amd64/lzma_d.S:// addq src,lsrc; push lsrc // &input_eof
comment that explains preceding actions in ELFMAINX; a restoring 'subq' is already next
src/i386-expand.S: add src,%ecx; push %ecx // MATCH_52 eof_src
%ecx is dead
src/i386-linux.elf-so_entry.S: add src,lsrc; push lsrc // MATCH_05 &input_eof
lsrc is dead for inlined nrv2b
2023-10-12 10:41:13 -07:00
0515be4334
LZMA on AMD64 had bug in calling sequence, leading to random exit(127)
...
LzmaDecode randomly decided that the input had ended in the middle,
because of error in interface between ELFMAINX and the decoder.
Thanks to Kevin Gosse!
https://github.com/upx/upx/pull/716
https://github.com/MichalStrehovsky/PublishAotCompressed/issues/11
2023-10-06 14:14:32 -07:00
632c7c4826
all: assorted cleanups; introduce undocumented '--sysinfo' option
2023-10-05 03:51:27 +02:00
b0b87eda02
check-whitespace
...
modified: stub/src/upxfd_android.c
2023-09-28 12:49:14 -07:00
f63a673a8b
Prepare to emulate memfd_create() on 32-bit Android (ARM and i386)
...
modified: stub/src/include/linux.h
new file: stub/src/upxfd_android.c
new file: stub/src/upxfd_create.c
2023-09-28 12:44:49 -07:00
290dd0c5d2
Git straggler
...
modified: src/stub/tmp/i386-linux.elf-entry.bin.dump
2023-09-28 12:09:32 -07:00
194bf2b852
Common prototypes for mmap and ftruncate
...
modified: src/stub/src/include/linux.h
modified: src/stub/src/amd64-linux.elf-so_main.c
modified: src/stub/src/i386-linux.elf-so_main.c
modified: src/stub/src/i386-linux.elf.execve-main.c
modified: src/stub/src/i386-linux.elf.interp-main.c
modified: src/stub/src/i386-linux.elf.shell-main.c
2023-09-28 12:07:04 -07:00
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
bfeed2ab9a
MAP_PRIVATE to capture memfd pages before closing the fd
...
https://github.com/upx/upx/issues/710
modified: stub/src/amd64-linux.elf-so_main.c
modified: stub/src/i386-linux.elf-so_main.c
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_fold.h
modified: stub/i386-linux.elf-so_fold.h
2023-09-20 13:12:04 -07:00
9331ed39d4
32-bit Android lacks memfd_create, and has varying __NR_ftruncate
...
https://github.com/upx/upx/issues/700
modified: stub/src/i386-linux.elf-so_main.c
modified: stub/src/arm.v4a-linux.elf-so_entry.S
modified: stub/src/arm.v4a-linux.elf-so_fold.S
modified: stub/arm.v4a-linux.elf-so_entry.h
modified: stub/arm.v4a-linux.elf-so_fold.h
modified: stub/arm.v5a-linux.elf-so_entry.h
modified: stub/arm.v5a-linux.elf-so_fold.h
2023-09-02 15:31:32 -07:00
bfb438dc89
Sync stubs
...
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_fold.h
modified: stub/i386-linux.elf-so_fold.h
modified: stub/tmp/amd64-linux.elf-so_fold.bin.dump
2023-08-31 13:34:49 -07:00
cd3f69c290
Explicit write() can subsume ftruncate()
...
modified: stub/src/amd64-linux.elf-so_main.c
modified: stub/src/i386-linux.elf-so_main.c
2023-08-31 13:25:53 -07:00
394cd77bec
all: cleanups
2023-08-16 01:06:52 +02:00
10e759f1f1
src: minor cleanups
2023-08-11 13:32:53 +02:00
757401dd0c
CI and spell checks
2023-08-09 13:08:38 +02:00
43b3b54197
spell check typos
...
modified: p_lx_exc.cpp
modified: p_mach.cpp
modified: stub/src/amd64-linux.elf-so_main.c
modified: stub/src/i386-linux.elf-so_main.c
modified: stub/src/arch/mips/r3000/bits.ash
modified: stub/src/arm.v4a-linux.elf-fold.S
modified: stub/src/arm.v4a-linux.shlib-init.S
modified: stub/src/arm64-linux.shlib-init.S
modified: stub/src/i386-linux.elf-main.c
modified: stub/src/mipsel.r3000-linux.elf-entry.S
2023-07-31 09:05:32 -07:00
c3327977da
Pwrite:
...
modified: stub/src/amd64-linux.elf-so_fold.S
modified: stub/amd64-linux.elf-so_fold.h
modified: stub/tmp/amd64-linux.elf-so_fold.bin.dump
2023-07-29 13:42:20 -07:00
334731f56b
Sync stubs for powerpc64le-linux.elf/upx-3.95
...
How did this mismatch happen?
modified: ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
modified: stub/arm64-linux.elf-so_entry.h
modified: stub/powerpc64-linux.elf-fold.h
modified: stub/powerpc64le-linux.elf-fold.h
2023-07-26 07:15:22 +02:00
d5e7672a45
De-activate "bkpt" at entry
...
modified: arm64-linux.elf-so_entry.S
2023-07-26 07:15:22 +02:00
John Reiser