+2023-05-29 Release Manager
+
+ * GCC 11.4.0 released.
+
+2022-04-21 Release Manager
+
+ * GCC 11.3.0 released.
+
+2021-07-28 Release Manager
+
+ * GCC 11.2.0 released.
+
+2021-04-27 Release Manager
+
+ * GCC 11.1.0 released.
+
+2021-03-03 Ian Lance Taylor <iant@golang.org>
+
+ * dwarf.c (read_line_program): Don't special case file 0.
+ (read_function_entry): Likewise.
+
+2021-03-02 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/98818
+ * dwarf.c (dwarf_buf_error): Add errnum parameter. Change all
+ callers.
+ * backtrace.h: Update backtrace_error_callback comment.
+
+2021-02-12 Ian Lance Taylor <iant@golang.org>
+
+ * configure.ac: Check for objcopy --add-gnu-debuglink by using
+ objcopy --help.
+ * configure: Regenerate
+
+2021-01-18 Ian Lance Taylor <iant@golang.org>
+
+ * Makefile.am (%_dwz): If dwz fails, use uncompressed debug info.
+ * Makefile.in: Regenerate.
+ * configure: Regenerate.
+
+2021-01-18 Ian Lance Taylor <iant@golang.org>
+
+ 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.
+
+2021-01-05 Samuel Thibault <samuel.thibault@ens-lyon.org>
+
+ * configure: Re-generate.
+
+2020-12-05 Iain Sandoe <iain@sandoe.co.uk>
+
+ PR target/97865
+ * configure: Regenerate.
+
+2020-12-02 Ian Lance Taylor <iant@golang.org>
+
+ * dwarf.c (resolve_string): Use > rather than >= to check whether
+ string index extends past buffer.
+ (resolve_addr_index): Similarly for address index.
+
+2020-11-29 John David Anglin <danglin@gcc.gnu.org>
+
+ * configure: Regenerate.
+
+2020-10-20 Ian Lance Taylor <iant@golang.org>
+
+ * internal.h (ATTRIBUTE_FALLTHROUGH): Define.
+ * elf.c (elf_zlib_inflate): Use ATTRIBUTE_FALLTHROUGH.
+
+2020-09-28 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/97082
+ * Makefile.am (check_DATA): Add mtest.dSYM if USE_DSYMUTIL.
+ * Makefile.in: Regenerate.
+
+2020-09-28 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/97227
+ * configure.ac (USE_DSYMUTIL): Define instead of HAVE_DSYMUTIL.
+ * Makefile.am: Change all uses of HAVE_DSYMUTIL to USE_DSYMUTIL.
+ * configure: Regenerate.
+ * Makefile.in: Regenerate.
+
+2020-09-23 Ian Lance Taylor <iant@golang.org>
+
+ * dwarf.c (report_inlined_functions): Handle PC == -1 and PC ==
+ p->low.
+ (dwarf_lookup_pc): Likewise.
+
+2020-09-17 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/97080
+ * fileline.c (backtrace_syminfo_to_full_callback): New function.
+ (backtrace_syminfo_to_full_error_callback): New function.
+ * elf.c (elf_nodebug): Call syminfo_fn if possible.
+ * internal.h (struct backtrace_call_full): Define.
+ (backtrace_syminfo_to_full_callback): Declare.
+ (backtrace_syminfo_to_full_error_callback): Declare.
+ * mtest.c (f3): Only check all[i] if data.index permits.
+
+2020-09-16 Iain Sandoe <iain@sandoe.co.uk>
+
+ * macho.c (MACH_O_CPU_TYPE_PPC): New.
+ (MACH_O_CPU_TYPE_PPC64): New.
+ Add compile-tests for powerpc to the Mach-O variants.
+
+2020-09-14 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/93608
+ Add support for MiniDebugInfo.
+ * elf.c (struct elf_view): Define. Replace most uses of
+ backtrace_view with elf_view.
+ (elf_get_view): New static functions. Replace most calls of
+ backtrace_get_view with elf_get_view.
+ (elf_release_view): New static functions. Replace most calls of
+ backtrace_release_view with elf_release_view.
+ (elf_uncompress_failed): Rename from elf_zlib_failed. Change all
+ callers.
+ (LZMA_STATES, LZMA_POS_STATES, LZMA_DIST_STATES): Define.
+ (LZMA_DIST_SLOTS, LZMA_DIST_MODEL_START): Define.
+ (LZMA_DIST_MODEL_END, LZMA_FULL_DISTANCES): Define.
+ (LZMA_ALIGN_SIZE, LZMA_LEN_LOW_SYMBOLS): Define.
+ (LZMA_LEN_MID_SYMBOLS, LZMA_LEN_HIGH_SYMBOLS): Define.
+ (LZMA_LITERAL_CODERS_MAX, LZMA_LITERAL_CODER_SIZE): Define.
+ (LZMA_PROB_IS_MATCH_LEN, LZMA_PROB_IS_REP_LEN): Define.
+ (LZMA_PROB_IS_REP0_LEN, LZMA_PROB_IS_REP1_LEN): Define.
+ (LZMA_PROB_IS_REP2_LEN, LZMA_PROB_IS_REP0_LONG_LEN): Define.
+ (LZMA_PROB_DIST_SLOT_LEN, LZMA_PROB_DIST_SPECIAL_LEN): Define.
+ (LZMA_PROB_DIST_ALIGN_LEN): Define.
+ (LZMA_PROB_MATCH_LEN_CHOICE_LEN): Define.
+ (LZMA_PROB_MATCH_LEN_CHOICE2_LEN): Define.
+ (LZMA_PROB_MATCH_LEN_LOW_LEN): Define.
+ (LZMA_PROB_MATCH_LEN_MID_LEN): Define.
+ (LZMA_PROB_MATCH_LEN_HIGH_LEN): Define.
+ (LZMA_PROB_REP_LEN_CHOICE_LEN): Define.
+ (LZMA_PROB_REP_LEN_CHOICE2_LEN): Define.
+ (LZMA_PROB_REP_LEN_LOW_LEN): Define.
+ (LZMA_PROB_REP_LEN_MID_LEN): Define.
+ (LZMA_PROB_REP_LEN_HIGH_LEN): Define.
+ (LZMA_PROB_LITERAL_LEN): Define.
+ (LZMA_PROB_IS_MATCH_OFFSET, LZMA_PROB_IS_REP_OFFSET): Define.
+ (LZMA_PROB_IS_REP0_OFFSET, LZMA_PROB_IS_REP1_OFFSET): Define.
+ (LZMA_PROB_IS_REP2_OFFSET): Define.
+ (LZMA_PROB_IS_REP0_LONG_OFFSET): Define.
+ (LZMA_PROB_DIST_SLOT_OFFSET): Define.
+ (LZMA_PROB_DIST_SPECIAL_OFFSET): Define.
+ (LZMA_PROB_DIST_ALIGN_OFFSET): Define.
+ (LZMA_PROB_MATCH_LEN_CHOICE_OFFSET): Define.
+ (LZMA_PROB_MATCH_LEN_CHOICE2_OFFSET): Define.
+ (LZMA_PROB_MATCH_LEN_LOW_OFFSET): Define.
+ (LZMA_PROB_MATCH_LEN_MID_OFFSET): Define.
+ (LZMA_PROB_MATCH_LEN_HIGH_OFFSET): Define.
+ (LZMA_PROB_REP_LEN_CHOICE_OFFSET): Define.
+ (LZMA_PROB_REP_LEN_CHOICE2_OFFSET): Define.
+ (LZMA_PROB_REP_LEN_LOW_OFFSET): Define.
+ (LZMA_PROB_REP_LEN_MID_OFFSET): Define.
+ (LZMA_PROB_REP_LEN_HIGH_OFFSET): Define.
+ (LZMA_PROB_LITERAL_OFFSET): Define.
+ (LZMA_PROB_TOTAL_COUNT): Define.
+ (LZMA_IS_MATCH, LZMA_IS_REP, LZMA_IS_REP0): Define.
+ (LZMA_IS_REP1, LZMA_IS_REP2, LZMA_IS_REP0_LONG): Define.
+ (LZMA_DIST_SLOT, LZMA_DIST_SPECIAL, LZMA_DIST_ALIGN): Define.
+ (LZMA_MATCH_LEN_CHOICE, LZMA_MATCH_LEN_CHOICE2): Define.
+ (LZMA_MATCH_LEN_LOW, LZMA_MATCH_LEN_MID): Define.
+ (LZMA_MATCH_LEN_HIGH, LZMA_REP_LEN_CHOICE): Define.
+ (LZMA_REP_LEN_CHOICE2, LZMA_REP_LEN_LOW): Define.
+ (LZMA_REP_LEN_MID, LZMA_REP_LEN_HIGH, LZMA_LITERAL): Define.
+ (elf_lzma_varint): New static function.
+ (elf_lzma_range_normalize): New static function.
+ (elf_lzma_bit, elf_lzma_integer): New static functions.
+ (elf_lzma_reverse_integer): New static function.
+ (elf_lzma_len, elf_uncompress_lzma_block): New static functions.
+ (elf_uncompress_lzma): New static function.
+ (backtrace_uncompress_lzma): New function.
+ (elf_add): Add memory and memory_size parameters. Change all
+ callers. Look for .gnu_debugdata section, and, if found,
+ decompress it and use it for symbols and debug info. Permit the
+ descriptor parameter to be -1.
+ * internal.h (backtrace_uncompress_lzma): Declare.
+ * mtest.c: New file.
+ * xztest.c: New file.
+ * configure.ac: Check for nm, xz, and comm programs. Check for
+ liblzma library.
+ (HAVE_MINIDEBUG): Define.
+ * Makefile.am (mtest_SOURCES): Define.
+ (mtest_CFLAGS, mtest_LDADD): Define.
+ (TESTS): Add mtest_minidebug if HAVE_MINIDEBUG.
+ (%_minidebug): New pattern rule, if HAVE_MINIDEBUG.
+ (xztest_SOURCES, xztest_CFLAGS, xztest_LDADD): Define.
+ (xztest_alloc_SOURCES, xztest_alloc_CFLAGS): Define
+ (xztest_alloc_LDADD): Define.
+ (BUILDTESTS): Add mtest, xztest, xztest_alloc.
+ (CLEANFILES): Add files created by minidebug pattern.
+ (btest.lo): Correct INCDIR reference.
+ (mtest.lo, xztest.lo, ztest.lo): New targets.
+ * configure: Regenerate.
+ * config.h.in: Regenerate.
+ * Makefile.in: Regenerate.
+
+2020-09-09 Ian Lance Taylor <iant@golang.org>
+
+ * pecoff.c (coff_initialize_syminfo): Add is_64 parameter.
+ (coff_add): Determine and pass is_64.
+
+2020-09-09 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/96973
+ * fileline.c (macho_get_executable_path): New static function.
+ (fileline_initialize): Call macho_get_executable_path.
+
+2020-09-09 Ian Lance Taylor <iant@golang.org>
+
+ * 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.
+
+2020-09-08 Ian Lance Taylor <iant@golang.org>
+
+ * simple.c (simple_unwind): Correct comment spelling.
+
+2020-09-08 Ian Lance Taylor <iant@golang.org>
+
+ * macho.c (macho_add_dsym): Make space for '/' in dsym. Use
+ correct length when freeing diralc.
+
+2020-09-08 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/96973
+ * macho.c (macho_add_fat): Correctly swap 32-bit file offset.
+
+2020-09-08 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/96971
+ * filetype.awk: Only match magic number at start of line.
+
+2020-08-24 Ian Lance Taylor <iant@golang.org>
+
+ * macho.c (MACH_O_MH_MAGIC_FAT_64): Define.
+ (MACH_O_MH_CIGAM_FAT_64): Define.
+ (struct macho_fat_arch_64): Define.
+ (macho_add_fat): Add and use is_64 parameter.
+ (macho_add): Recognize 64-bit fat files.
+
+2020-07-30 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/96202
+ * configure: Regenerated.
+
+2020-07-08 Ian Lance Taylor <iant@golang.org>
+
+ * configure.ac: Test linker support for DWARF5
+ * configure: Regenerate
+
+2020-05-29 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/95413
+ * configure: Regenerated.
+
+2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/95147
+ * configure: Regenerated.
+
+2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
+
+ * configure: Regenerated.
+
+2020-05-13 Ian Lance Taylor <iant@golang.org>
+
+ * ztest.c (test_large): Mark state ATTRIBUTE_UNUSED.
+
+2020-05-13 Ian Lance Taylor <iant@golang.org>
+
+ PR go/95061
+ * posix.c (backtrace_open): Treat EACCESS like ENOENT.
+
+2020-05-12 H.J. Lu <hongjiu.lu@intel.com>
+
+ * Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
+ * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
+ AC_SUBST(CET_HOST_FLAGS). Clear CET_HOST_FLAGS if jit isn't
+ enabled.
+ * Makefile.in: Regenerated.
+ * configure: Likewise.
+
+2020-05-11 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/95012
+ * configure.ac: Check for getpagesize declaration.
+ * mmap.c: Declare getpagesize if necessary.
+ * mmapio.c: Likewise.
+ * configure: Regenerate.
+ * config.h.in: Regenerate.
+ * Makefile.in: Regenerate.
+
+2020-05-09 Roland McGrath <mcgrathr@google.com>
+
+ * elf.c (elf_add): Bail early if there are no section headers at all.
+
+2020-05-09 Ian Lance Taylor <iant@golang.org>
+
+ * elf.c (elf_add): Don't free strtab if an error occurs after
+ recording symbol information.
+
+2020-05-09 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/88745
+ * macho.c: New file.
+ * filetype.awk: Recognize Mach-O files.
+ * Makefile.am (FORMAT_FILES): Add macho.c.
+ (check_DATA): New variable. Set to .dSYM if HAVE_DSYMUTIL.
+ (%.dSYM): New pattern target.
+ (test_macho_SOURCES, test_macho_CFLAGS): New targets.
+ (test_macho_LDADD): New target.
+ (BUILDTESTS): Add test_macho.
+ (macho.lo): Add dependencies.
+ * configure.ac: Recognize macho file type. Check for
+ mach-o/dyld.h. Don't try to run objcopy if we don't find it.
+ Look for dsymutil and define a HAVE_DSYMUTIL conditional.
+ * Makefile.in: Regenerate.
+ * configure: Regenerate.
+ * config.h.in: Regenerate.
+
+2020-05-09 Ian Lance Taylor <iant@golang.org>
+
+ * read.c (backtrace_get_view): Support short read.
+
+2020-05-09 Ian Lance Taylor <iant@golang.org>
+
+ * elf.c (elf_add): If debug sections are very large or far apart,
+ read them individually rather than as a single view.
+
+2020-05-08 Ian Lance Taylor <iant@golang.org>
+
+ * fileline.c (sysctl_exec_name): New static function.
+ (sysctl_exec_name1): New macro or static function.
+ (sysctl_exec_name2): Likewise.
+ (fileline_initialize): Try sysctl_exec_name[12].
+ * configure.ac: Check for sysctl args to fetch executable name.
+ * configure: Regenerate.
+ * config.h.in: Regenerate.
+
+2020-02-15 Ian Lance Taylor <iant@golang.org>
+
+ * ztest.c (test_large): Update file to current libgo test file.
+
+2020-02-03 Ian Lance Taylor <iant@golang.org>
+
+ * Makefile.am (libbacktrace_TEST_CFLAGS): Define.
+ (test_elf32_CFLAGS): Use $(libbacktrace_test_CFLAGS).
+ (test_elf_64_CFLAGS, test_xcoff_32_CFLAGS): Likewise.
+ (test_xcoff_64_CFLAGS, test_pecoff_CFLAGS): Likewise.
+ (test_unknown_CFLAGS, unittest_CFLAGS): Likewise.
+ (unittest_alloc_CFLAGS, allocfail_CFLAGS): Likewise.
+ (b2test_CFLAGS, b3test_CFLAGS, btest_CFLAGS): Likewise.
+ (btest_lto_CFLAGS, btest_alloc_CFLAGS, stest_CFLAGS): Likewise.
+ (stest_alloc_CFLAGS): Likewise.
+ * Makefile.in: Regenerate.
+ * ztest.c (error_callback_compress): Mark vdata unused.
+ (test_large): Add casts to avoid warnings.
+
+2020-01-01 Jakub Jelinek <jakub@redhat.com>
+
+ Update copyright years.
+
+2019-12-13 Ian Lance Taylor <iant@golang.org>
+
+ Add DWARF 5 support.
+ * dwarf.c (struct attr): Add val field.
+ (enum attr_val_encoding): Add ATTR_VAL_ADDDRESS_INDEX,
+ ATTR_VAL_STRING_INDEX, ATTR_VAL_RNGLISTS_INDEX.
+ (struct line_header): Add addrsize field.
+ (struct line_header_format): Define.
+ (struct unit): Add str_offsets_base, addr_base, and rnglists_base
+ fields.
+ (read_uint24): New static function.
+ (read_attribute): Add implicit_val parameter. Replace dwarf_str
+ and dwarf_str_size parameters with dwarf_sections parameter. Add
+ support for new DWARF 5 forms. Change all callers.
+ (resolve_string): New static function.
+ (resolve_addr_index): Likewise.
+ (read_abbrevs): Support DW_FORM_implicit_const.
+ (struct pcrange): Add lowpc_is_addr_index, highpc_is_addr_Index,
+ and ranges_is_index fields.
+ (update_pcrange): Support DWARF 5 encodings.
+ (add_high_low_range): New static function, split out of
+ add_ranges.
+ (add_ranges_from_ranges): Likewise.
+ (add_ranges_from_rnglists): New static function.
+ (add_ranges): Just call new helper functions.
+ (find_address_ranges): Use resolve_string for strings, after
+ reading all attributes. Handle new DWARF 5 attributes.
+ (build_address_map): Support DWARF 5 compilation units.
+ (read_v2_paths): New static function, split out of
+ read_line_header.
+ (read_lnct): New static function.
+ (read_line_header_format_entries): Likewise.
+ (read_line_header): Add ddata parameter. Support DWARF 5 line
+ headers. Call new helper functions. Change all callers.
+ (read_line_program): Use addrsize from line program header. Don't
+ special case directory index 0 for DWARF 5.
+ (read_referenced_name): Use resolve_string.
+ (read_function_entry): Handle DWARF 5 encodings. Use
+ resolve_string.
+ * internal.h (enum dwarf_section): Add DEBUG_ADDR,
+ DEBUG_STR_OFFSETS, DEBUG_LINE_STR, DEBUG_RNGLISTS.
+ * elf.c (dwarf_section_names): Add new section names.
+ * pecoff.c (dwarf_section_names): Likewise.
+ * xcoff.c (xcoff_add): Clear dwarf_sections before setting
+ fields.
+ * configure.ac: Define HAVE_DWARF5 automake conditional.
+ * Makefile.am (dwarf5_SOURCES): New variable if HAVE_DWARF5.
+ (dwarf5_CFLAGS, dwarf5_LDADD): Likewise.
+ (dwarf5_alloc_SOURCES, dwarf5_alloc_CFLAGS): Likewise.
+ (dwarf5_alloc_LDADD): Likewise.
+ (BUILDTESTS): Add dwarf5 tests if HAVE_DWARF5.
+ (CLEANFILES, clean-local): Define.
+
+2019-12-08 Ian Lance Taylor <iant@golang.org>
+
+ * dwarf.c (struct pcrange): Define.
+ (update_pcrange, add_ranges): New static functions.
+ (add_unit_addr): Change signature to work with add_ranges. Don't
+ add base_address here.
+ (add_unit_ranges): Remove.
+ (find_address_ranges): Replace str/ranges parameters with
+ dwarf_sections. Use update_pcrange and add_ranges. Change all
+ callers.
+ (add_function_range): Change signature to work with add_ranges.
+ Don't add base_address here.
+ (add_function_ranges): Remove.
+ (read_function_entry): Use update_pcrange and add_ranges.
+
+2019-12-04 Ian Lance Taylor <iant@golang.org>
+
+ * edtest.c (test1): Add noclone attribute.
+
+2019-12-04 Ian Lance Taylor <iant@golang.org>
+
+ * internal.h (enum dwarf_section): Define.
+ (struct dwarf_sections): Define.
+ (backtrace_dwarf_add): Update declaration to replace specific
+ section parameters with dwarf_sections parameter.
+ * dwarf.c (struct dwarf_data): Replace specific section fields
+ with dwarf_sections field.
+ (read_attribute): Use dwarf_sections with altlink.
+ (build_address_map): Replace specific section parameters with
+ dwarf_sections parameter. Change all callers.
+ (read_line_info): Use dwarf_sections with ddata.
+ (read_referenced_name): Likewise.
+ (add_function_ranges): Likewise.
+ (read_function_entry): Likewise.
+ (read_function_info): Likewise.
+ (build_dwarf_data): Replace specific section parameters with
+ dwarf_sections parameter. Change all callers.
+ (backtrace_dwarf_add): Likewise.
+ * elf.c (enum debug_section): Remove.
+ (dwarf_section_names): Remove .zdebug names.
+ (elf_add): Track zsections separately. Build dwarf_sections.
+ * pecoff.c (enum debug_section): Remove.
+ (struct debug_section_info): Remove data field.
+ (coff_add): Build dwarf_sections.
+ * xcoff.c (enum dwarf_section): Remove. Replace DWSECT_xxx
+ references with DEBUG_xxx references.
+ (xcoff_add): Build dwarf_sections.
+
+2019-09-27 Maciej W. Rozycki <macro@wdc.com>
+
+ * configure: Regenerate.
+
+2019-09-26 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/91908
+ * pecoff.c (backtrace_initialize): Explicitly cast unchecked
+ __sync_bool_compare_and_swap to void.
+ * xcoff.c (backtrace_initialize): Likewise.
+
+2019-09-03 Ulrich Weigand <uweigand@de.ibm.com>
+
+ * configure.ac: Remove references to spu.
+ * configure: Regenerate.
+
+2019-05-24 Clement Chigot <clement.chigot@atos.net>
+
+ * Makefile.am (BUILDTESTS): Remove test_elf, add test_elf_32 and
+ test_elf_64.
+ * Makefile.in: Regenerate.
+
+2019-05-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
+ handling.
+ * configure: Regenerate.
+
2019-03-11 Ian Lance Taylor <iant@golang.org>
PR libbacktrace/89669
* Initial implementation.
\f
-Copyright (C) 2012-2019 Free Software Foundation, Inc.
+Copyright (C) 2012-2021 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
projects / thirdparty / gcc.git / blobdiff