mirror/libbacktrace
1
0
Fork 0
mirror of https://github.com/ianlancetaylor/libbacktrace.git synced 2026-09-07 12:17:06 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity
134 Commits 2 Branches 0 Tags
3bd5a08e4fa6b70bba04d1431386f4384bb123ce
Commit Graph
23 Commits
Author SHA1 Message Date
Ian Lance Taylor 6d913c4521 libbacktrace: report decl_lineno with MOREDATA 
Based on patch by Andi Kleen.

	* backtrace.h (struct backtrace_moredata): Add
	backtrace_decl_lineno field.
	* internal.h (BACKTRACE_MOREDATA_VERSION): Change to 4.
	* dwarf.c (struct function): Add decl_lineno field.
	(call_callback): Add decl_lineno parameter. Change all callers.
	(read_referenced_name_from_attr): Likewise.
	(read_referenced_name): Likewise.
	(report_inlined_functions): Likewise.
	(read_function_entry): Set decl_lineno field.
	(dwarf_lookup_pc): Handle decl_lineno across inlines.
	* mdtest.c (struct mdinfo): Define.
	(struct mddata): Define.
	(md_callback_one): Adjust for mddata.
	(md_callback_three): Likewise.
	(test1, f2): Reformat for simpler line number testing.
	(f3): Test that decl_lineno is correct.
	(f13): Adjust for mddata.
 2026-08-31 12:42:36 -07:00
Ian Lance Taylor 6f8310e238 libbacktrace: support returning discriminator field 
Based on patch from Andi Kleen.

	* backtrace.h (backtrace_create_state): Rewrite comment to change
	threaded parameter to flags.
	(backtrace_full_callback, backtrace_syminfo_callback): Document
	behavior change if moredata flag is set.
	(struct backtrace_moredata): Define.
	* backtrace-supported.h.in (BACKTRACE_SUPPORTS_MOREDATA): Define.
	* internal.h (struct backtrace_state): Add moredata field.
	(BACKTRACE_MOREDATA_VERSION): Define.
	* state.c (backtrace_create_state): Change threaded parameter to
	flags.  Set state moredata field based on flags.
	* dwarf.c (struct line): Add disc field.
	(struct function): Add caller_disc field.
	(call_callback): New static function.
	(add_line): Add disc parameter.  Change all callers.  Store disc
	in new line value.
	(read_line_program): Track discriminator value.
	(read_line_info): Initialize disc field in final line entry.
	(read_function_entry): Handle DW_AT_GNU_discriminator.
	(report_inlined_functions): Add disc parameter. Change all
	callers. Call call_callback rather than calling callback
	directly.
	(dwarf_lookup_pc): Handle inlined discriminators. Call
	call_callback rather than calling callback directly.
	(dwarf_fileline): Call call_callback rather than calling callback
	directly.
	* elf.c (elf_syminfo): Pass moredata if requested.
	* macho.c (macho_syminfo): Likewise.
	* pecoff.c (coff_syminfo): Likewise.
	* xcoff.c (xcoff_syminfo): Likewise.
	(xcoff_lookup_pc): Likewise.
	* backtrace.c: #include <string.h>.
	(unwind): Pass moredata if requested.
	* unknown.c: #include <string.h>.
	(unknown_fileline): Pass moredata if requested.
	* fileline.c (backtrace_syminfo_to_full_callback): Add comment
	about moredata.
	* mdtest.c: New test file.
	* Makefile.am (mdtest_SOURCES): Define.
	(mdtest_CFLAGS, mdtest_LDFLAGS, mdtest_LDADD): Define.
	(BUILDTESTS): Add mdtest.
	* Makefile.in: Regenerate.
 2026-07-06 12:42:21 -07:00
Jakub Jelinek 42962d2cfb Update copyright years. 2026-05-03 18:21:13 -07:00
Jakub Jelinek bdd324c192 Update copyright years. 2026-05-03 18:20:27 -07:00
Ian Lance Taylor 3d0be55844 libbacktrace: don't get confused by overlapping address ranges 
Fixes https://github.com/ianlancetaylor/libbacktrace/issues/137.

	* dwarf.c (resolve_unit_addrs_overlap_walk): New static function.
	(resolve_unit_addrs_overlap): New static function.
	(build_dwarf_data): Call resolve_unit_addrs_overlap.
 2024-10-18 13:04:47 -07:00
Ian Lance Taylor 1dd5c408fe libbacktrace: support FDPIC 
Based on patch by Max Filippov.

	* internal.h: If FDPIC, #include <link.h> and/or <sys/link.h>.
	(libbacktrace_using_fdpic): Define.
	(struct libbacktrace_base_address): Define.
	(libbacktrace_add_base): Define.
	(backtrace_dwarf_add): Change base_address to struct
	libbacktrace_base_address.
	* dwarf.c (struct dwarf_data): Change base_address to struct
	libbacktrace_base_address.
	(add_ranges, find_address_ranges, build_ddress_map): Likewise.
	(build_dwarf_data, build_dwarf_add): Likewise.
	(add_low_high_range): Change base_address to struct
	libbacktrace_base_address.  Use libbacktrace_add_base.
	(add_ranges_from_ranges, add_ranges_from_rnglists): Likewise.
	(add_line): Use libbacktrace_add_base.
	* elf.c (elf_initialize_syminfo): Change base_address to struct
	libbacktrace_base_address.  Use libbacktrace_add_base.
	(elf_add): Change base_address to struct
	libbacktrace_base_address.
	(phdr_callback): Likewise.  Initialize base_address.m.
	(backtrace_initialize): If using FDPIC, don't call elf_add with
	main executable; always use dl_iterate_phdr.
	* macho.c (macho_add_symtab): Change base_address to struct
	libbacktrace_base_address.  Use libbacktrace_add_base.
	(macho_syminfo): Change base_address to struct
	libbacktrace_base_address.
	(macho_add_fat, macho_add_dsym, macho_add): Likewise.
	(backtrace_initialize): Likewise.  Initialize base_address.m.
	* pecoff.c (coff_initialize_syminfo): Change base_address to
	struct libbacktrace_base_address.  Use libbacktrace_add_base.
	(coff_add): Change base_address to struct
	libbacktrace_base_address.  Initialize base_address.m.
 2024-07-15 17:29:35 -07:00
Ian Lance Taylor 8c05bcb94f libbacktrace: update copyright years 2024-07-11 18:14:01 -07:00
Ian Lance Taylor f69acdfbd6 libbacktrace: remove trailing whitespace 
* dwarf.c: Remove trailing whitespace.
	* macho.c: Likewise.

Fixes #124
 2024-07-11 15:30:09 -07:00
Ian Lance Taylor afe2967c77 libbacktrace: change PC variables from uint64_t to uintptr_t 
Change variables holding PC values from uint64_t to uintptr_t.
	Patch by Björn Schäpers.
	* dwarf.c (struct function_addrs): Change low and high fields to
	uintptr_t.
	(struct unit_addrs): Likewise.
	(resolve_addr_index): Change address parameter to uintptr_t*.
	(add_unit_addr): Change lowpc and highpc parameters to uintptr_t.
	(add_function_range): Likewise.
	(struct pcrange): Change lowpc and highpc fields to uintptr_t.
	(add_low_high_range): Change add_range lowpc and highpc parameters
	to uintptr_t.
	(add_ranges_from_ranges): Likewise.
	(add_ranges_from_rnglists): Likewise.
	(add_low_high_range): Chnage lowpc and highpc variables to
	uintpr_t.
	(add_ranges_from_rnglists): Change some local variables to
	uintptr_t.
	(add_ranges_from_ranges): Change base parameter to uintptr_t.
	(add_ranges_from_rnglists): Likewise.
	(read_function_entry): Likewise.
	(resolve_addr_index): Add explicit casts to uintptr_t.
	(update_pcrange): Likewise.
	(add_ranges_from_ranges): Likewise.
	(add_ranges_from_rnglists): Likewise.
	(read_function_entry): Likewise.
 2023-01-20 14:25:38 -08:00
Ian Lance Taylor 2446c66076 libbacktrace: gather address ranges from skeleton units 
* dwarf.c (find_address_ranges): Handle skeleton units.
	(read_function_entry): Likewise.
 2022-02-17 08:27:13 -08:00
Ian Lance Taylor 509f74a2fb libbacktrace: initialize DWARF 5 fields of unit 
When I added the fields in 2019-12-13 I forgot to initialize them.

	* dwarf.c (build_address_map): Initialize DWARF 5 fields of unit.
 2022-02-16 11:42:40 -08:00
Ian Lance Taylor 4f57c99971 libbacktrace: don't special case file 0 
It's no longer necessary as file 0 is now set up in all cases.

	* dwarf.c (read_line_program): Don't special case file 0.
	(read_function_entry): Likewise.

Fixes #69
 2021-03-02 18:17:36 -08:00
Ian Lance Taylor 59473f7906 libbacktrace: pass -1 to error callback for unrecognized DWARF 
PR libbacktrace/98818
	* dwarf.c (dwarf_buf_error): Add errnum parameter.  Change all
	callers.
	* backtrace.h: Update backtrace_error_callback comment.
 2021-03-02 13:49:18 -08:00
Ian Lance Taylor 096650403a libbacktrace: use correct directory/filename for DWARF 5 
PR debug/98716
	* dwarf.c (read_v2_paths): Allocate zero entry for dirs and
	filenames.
	(read_line_program): Remove parameter u, change caller.  Don't
	subtract one from dirs and filenames index.
	(read_function_entry): Don't subtract one from filenames index.
 2021-01-18 14:57:11 -08:00
Jakub Jelinek 5496ee0a1a Update copyright years. 2021-01-18 14:56:19 -08:00
Ian Lance Taylor 1da441c1b0 libbacktrace: correct buffer overflow tests 
* dwarf.c (resolve_string): Use > rather than >= to check whether
	string index extends past buffer.
	(resolve_addr_index): Similarly for address index.
 2020-12-04 11:19:55 -08:00
Ian Lance Taylor 95e8e96c86 libbacktrace: handle pc == low correctly 
* dwarf.c (report_inlined_functions): Handle PC == -1 and PC ==
	p->low.
	(dwarf_lookup_pc): Likewise.
 2020-09-27 17:30:21 -07:00
Ian Lance Taylor 430dc8b6fe libbacktrace: avoid ambiguous binary search 
Searching for a range match can cause the search order to not match
the sort order, which can cause libbacktrace to miss matching entries.
Allocate an extra entry at the end of function_addrs and unit_addrs vectors,
so that we can safely compare to the next entry when searching.
Adjust the matching code accordingly.

Fixes #44

	* dwarf.c (function_addrs_search): Compare against the next entry
	low address, not the high address.
	(unit_addrs_search): Likewise.
	(build_address_map): Add a trailing unit_addrs.
	(read_function_entry): Add a trailing function_addrs.
	(read_function_info): Likewise.
	(report_inlined_functions): Search backward for function_addrs
	match.
	(dwarf_lookup_pc): Search backward for unit_addrs and
	function_addrs matches.
 2020-09-27 17:17:59 -07:00
Ian Lance Taylor bd02146d90 Update copyright years. 2020-02-18 18:46:13 -08:00
Ian Lance Taylor 559ab7cab4 libbacktrace: update to current version from GCC trunk 
This adds DWARF 5 support as well as an enhanced testsuite.

Patch assembled by Than McIntosh.
 2019-12-23 18:55:51 -08:00
Than McIntosh 17f687d2b9 Update from gcc trunk version of libbacktrace at svn rev 256427. (#8) 
Includes (among other things) support for compressed debug sections,
a variety of bugfixes, and expanded test coverage.
 2018-01-12 10:26:02 -08:00
Ian Lance Taylor ba79a27ee9 all: remove meaningless trailing whitespace 2016-09-11 06:45:37 -07:00
Ian Lance Taylor 84241313f2 libbacktrace: initial commit 
This is a standalone version of the libbacktrace library that I
originally wrote for GCC.  This is a copy of libbacktrace from GCC
trunk, with all dependencies incorporated here.
 2016-09-10 07:59:09 -07:00