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fb4dcd4e96538beab96d9a4e49fcaaa213af2021
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41 Commits

Author SHA1 Message Date
Bartosz Taudul
e842bf223f Use correct type for phdr addresses. 2026-07-07 17:54:03 +02:00
Ivan Molodetskikh
16a148f0be Replace __WORDSIZE with __SIZEOF_POINTER__ 
__WORDSIZE has been relocated from bits/reg.h (now an empty header) to
sys/reg.h in 2024:
https://git.musl-libc.org/cgit/musl/commit/?id=e709a6f07ade208ba513f9225222336f30c304b0

And in any case, it's a private definition. Let's use a common
documented define instead:
https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html

Fixes symbol resolution on musl (particularly, postmarketOS aarch64).
 2026-07-06 18:57:31 +03:00
Ivan Molodetskikh
279f7ba0df libbacktrace: Fix missing table assignment in RLE seq decode 
Fixes segfault when decompressing mesa debuginfo on Aeryn.
 2026-06-27 11:05:12 +03:00
Ivan Molodetskikh
bd2106db68 libbacktrace: support compressed block with window descriptor 
Some debuginfo on AerynOS has this format.
 2026-06-26 10:46:33 +03:00
Ian Lance Taylor
99c13e53bf libbacktrace: support compressed block with no sequences 
* elf.c (elf_zstd_decompress_frame): Support a compressed block
	with no sequences, only literals.

Fixes https://github.com/ianlancetaylor/libbacktrace/issues/164
 2026-06-26 10:46:17 +03:00
Ian Lance Taylor
7fbe1d1345 libbacktrace: support multiple zstd frames 
Based on patch by GitHub user ofats.

	* elf.c (elf_zstd_decompress_frame): New static function,
	broken out of elf_zstd_decompress.
	(elf_zstd_decompress): Call elf_zstd_decompress_frame in a loop.
	* zstdtest.c (test_large): Compress the file in chunks.
 2026-06-26 10:41:29 +03:00
Ivan Molodetskikh
5745b489a2 callstack: Calculate end address from highest LOAD header 
Headers aren't guaranteed to be sorted in final address order. For
example, from readelf -lW of a .so built with clang:

Program Headers:
  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
  PHDR           0x000040 0x0000000000000040 0x0000000000000040 0x000230 0x000230 R   0x8
  LOAD           0x000000 0x0000000000000000 0x0000000000000000 0x5e8274 0x5e8274 R   0x1000
  LOAD           0x5e8280 0x00000000005e9280 0x00000000005e9280 0x51e990 0x51e990 R E 0x1000
  LOAD           0xb06c10 0x0000000000b08c10 0x0000000000b08c10 0x031628 0x0323f0 RW  0x1000
  LOAD           0xb38240 0x0000000000b3b240 0x0000000000b3b240 0x009aa8 0x011c40 RW  0x1000
  DYNAMIC        0xb32270 0x0000000000b34270 0x0000000000b34270 0x000410 0x000410 RW  0x8
  GNU_RELRO      0xb06c10 0x0000000000b08c10 0x0000000000b08c10 0x031628 0x0323f0 R   0x1
  GNU_EH_FRAME   0x4e8360 0x00000000004e8360 0x00000000004e8360 0x029cf4 0x029cf4 R   0x4
  GNU_STACK      0x000000 0x0000000000000000 0x0000000000000000 0x000000 0x000000 RW  0
  NOTE           0x000270 0x0000000000000270 0x0000000000000270 0x000024 0x000024 R   0x4
 2026-06-26 10:41:29 +03:00
Bartosz Taudul
7974a74580 Add external_file support to libbacktrace 
- Add external_file field to backtrace_state struct
- Add backtrace_create_state_for_file() function that marks
  state for external ELF files not loaded in current process
- In backtrace_initialize, use external_file flag to:
  - Pass exe=0 to elf_add for ET_DYN files (allows DWARF loading)
  - Skip dl_iterate_phdr enumeration (avoids noise from current process)

This enables symbol resolution from arbitrary ELF files on disk,
with caller responsible for address translation.
 2026-03-30 19:52:12 +02:00
Bartosz Taudul
2f1fc19f88 libbacktrace: use correct names in #undef of ELF macros (b9e4006) 2026-03-30 19:40:30 +02:00
Bartosz Taudul
52607f70fe libbacktrace: add casts to avoid undefined shifts (78af4ff, 0034e33) 2026-03-30 19:38:45 +02:00
Bartosz Taudul
d79b7d4176 libbacktrace: don't get confused by overlapping address ranges (3d0be55) 2026-03-30 19:33:37 +02:00
Simonas Kazlauskas
10b5f0d878 fix: GetDebugInfoDescriptor signature 2025-11-13 19:19:52 +02:00
PewPewCrit
11c9e3fa35 libbacktrace: recognize new Mach-O DWARF sections 
Reference: libbacktrace@d48f84034ce3e53e501d10593710d025cb1121db
 2025-08-04 14:17:18 +03:00
Bartosz Taudul
e26c34346b libbacktrace: support FDPIC (1dd5c40) 2024-08-24 18:15:52 +02:00
Bartosz Taudul
0d0e56dca3 libbacktrace: avoid infinite recursion (febbb9b) 2024-08-24 18:02:05 +02:00
Bartosz Taudul
12c8592325 libbacktrace: fix UBSAN issues (5aa9254) 2024-08-24 18:01:10 +02:00
Bartosz Taudul
ef21f5867e libbacktrace: correctly gather Mach-O symbol table (3fda5a8) 2024-08-24 17:57:43 +02:00
Bartosz Taudul
ba79deddf6 libbacktrace: it's OK if zstd decompressor sees no backward bits (4ead348) 2024-08-24 17:55:41 +02:00
Ikko Eltociear Ashimine
dfbf0652f2 libbacktrace: update elf.cpp 
previouly -> previously
 2024-07-01 02:20:56 +09:00
Bartosz Taudul
2df972d586 libbacktrace: don't assume compressed section is aligned (7ead8c1) 2024-03-13 00:29:01 +01:00
Bartosz Taudul
49478ec3b3 libbacktrace: skip all LZMA block header padding bytes (28824f2) 2024-03-13 00:24:13 +01:00
Bartosz Taudul
1f90cd473b libbacktrace: use real .opd for debuginfo on ppc64 v1 ABI (592e9c8) 2024-03-13 00:23:08 +01:00
Bartosz Taudul
a9feb75bdf libbacktrace: read symbol table of debuginfo file (36cfdc1) 2024-03-13 00:20:14 +01:00
Bartosz Taudul
a4eecd508d libbacktrace: call GetModuleFileNameA on Windows (25889d2) 2024-03-13 00:18:14 +01:00
Bartosz Taudul
11bf33c32c libbacktrace: look for _pgmptr on Windows (c1c86fa2) 2024-03-13 00:15:10 +01:00
trodrigues
8503f32b36 fix typos and compilation warnings 2023-12-09 09:37:14 -06:00
trodrigues
e80e1d2484 fix line endings 2023-12-06 12:29:26 -06:00
Tiago Rodrigues
8dfc5fe41f re-apply diff 2023-12-06 12:39:52 -05:00
Tiago Rodrigues
38559172bb checkout elf.cpp as it looks like line ending were screwed up 2023-12-06 12:37:53 -05:00
Tiago Rodrigues
24b6c649d3 fix typo 2023-12-06 12:32:37 -05:00
trodrigues
b835d73590 Add support for libbacktrace to detect new elfs have been dynamically loaded after backtrace_initialize() has been called, and consider them for symbol resolution 2023-12-05 20:09:11 -06:00
xhe
4e771b2da0 adapt libbacktrace to musl 
Signed-off-by: xhe <xw897002528@gmail.com>
 2023-09-10 19:26:38 +08:00
Bartosz Taudul
77402eb9c2 libbacktrace: minor fixes for zstd decompression (cdb64b68) 2023-04-05 17:24:19 +02:00
Bartosz Taudul
0f19727dc6 libbacktrace: change PC variables from uint64_t to uintptr_t (afe2967c) 2023-04-05 17:23:04 +02:00
Bartosz Taudul
b53acde418 Fix type. 2023-01-05 20:34:50 +01:00
Bartosz Taudul
236bbfa8b1 libbacktrace: unpack literals into output buffer (da7eff2) 2023-01-05 20:31:05 +01:00
Bartosz Taudul
d8fc004bfa libbacktrace: rewrite and simplify main zstd loop (fd9442f) 2023-01-05 20:29:51 +01:00
Bartosz Taudul
08d403e324 libbacktrace: support zstd decompression (c992dd8) 2023-01-05 20:27:36 +01:00
Bartosz Taudul
1601ddeab5 Resolve relative file names to absolute ones. 
Note that this is a tentative fix, which *should* be working, but it may as
well not be correct in some edge cases. Who knows.
 2022-08-16 23:48:46 +02:00
Bartosz Taudul
8ccfe93044 Apply 7409767 from libbacktrace. 2022-07-20 00:41:22 +02:00
Bartosz Taudul
06c7984a16 Move all client headers and sources to public/ directory. 2022-07-17 15:47:38 +02:00