libbacktrace/ChangeLog

   1 2024-05-03  Ian Lance Taylor  <iant@golang.org>
   2
   3         * pecoff.c (struct dll_notification_data): Define.
   4         (LDR_DLL_NOTIFICATION): New typedef.
   5         (LDR_REGISTER_FUNCTION): New typedef.
   6         (struct dll_notification_context): Define.
   7         (dll_notification): New static function.
   8         (backtrace_initialize): Register DLL notification.
   9
  10 2024-04-28  Ian Lance Taylor  <iant@golang.org>
  11
  12         * configure.ac: Checked for tlhelp32.h
  13         * pecoff.c: Include <tlhelp32.h> if available.
  14         (backtrace_initialize): Use tlhelp32 api for a snapshot to
  15         detect loaded modules.
  16         (coff_add): New argument for the module handle of the file,
  17         to get the base address.
  18         * configure, config.h.in: Regenerate.
  19
  20 2024-04-23  Ian Lance Taylor  <iant@golang.org>
  21
  22         * configure.ac: Test --compress-debug-sections=zlib-gnu and
  23         --compress-debug-sections=zlib-gabi separately, setting new
  24         automake conditionals.
  25         * Makefile.am (ctestg, ctestg_alloc): Only build if
  26         HAVE_COMPRESSED_DEBUG_ZLIB_GNU.
  27         (ctesta, ctesta_alloc): Only build if
  28         HAVE_COMPRESSED_DEBUG_ZLIB_GABI.
  29         (ctestzstd_alloc): New test if HAVE_COMPRESSED_DEBUG_ZSTD.
  30         * configure, Makefile.in: Regenerate.
  31
  32 2024-03-08  Ian Lance Taylor  <iant@golang.org>
  33
  34         * elf.c (elf_uncompress_chdr): Don't assume compressed section is
  35         aligned.
  36
  37 2024-03-02  Ian Lance Taylor  <iant@golang.org>
  38
  39         * Makefile.am (libbacktrace_testing_ldflags): Define.
  40         (*_LDFLAGS): Add $(libbacktrace_testing_ldflags) for test
  41         programs.
  42         * Makefile.in: Regenerate
  43
  44 2024-03-02  Ian Lance Taylor  <iant@golang.org>
  45
  46         * elf.c (elf_uncompress_lzma_block): Skip all header padding bytes
  47         and verify that they are zero.
  48
  49 2024-03-02  Ian Lance Taylor  <iant@golang.org>
  50
  51         PR libbacktrace/114201
  52         * elf.c (elf_add): Add caller_opd parameter.  Change all callers.
  53         Release opd data after all recursive calls.
  54
  55 2024-03-01  Ian Lance Taylor  <iant@golang.org>
  56
  57         * elf.c (elf_add): Add the symbol table from a debuginfo file.
  58         * Makefile.am (MAKETESTS): Add buildidfull and gnudebuglinkfull
  59         variants of buildid and gnudebuglink tests.
  60         (%_gnudebuglinkfull, %_buildidfull): New patterns.
  61         * Makefile.in: Regenerate.
  62
  63 2023-11-30  Ian Lance Taylor  <iant@golang.org>
  64
  65         * pecoff.c: Include <windows.h> if available.
  66         (coff_add): On Windows call GetModuleHandle to get base address.
  67
  68 2023-11-29  Ian Lance Taylor  <iant@golang.org>
  69
  70         * fileline.c: Include <windows.h> if available.
  71         (windows_get_executable_path): New static function.
  72         (fileline_initialize): Call windows_get_executable_path.
  73         * configure.ac: Checked for windows.h
  74         * configure: Regenerate.
  75         * config.h.in: Regenerate.
  76
  77 2023-10-22  Iain Sandoe  <iain@sandoe.co.uk>
  78
  79         * configure: Regenerate.
  80         * configure.ac: Handle Darwin rpaths.
  81
  82 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
  83
  84         * configure: Regenerate.
  85
  86 2023-08-07  Alexander von Gluck IV  <kallisti5@unixzen.com>
  87
  88         * configure: Regenerate.
  89
  90 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
  91
  92         * configure: Regenerate.
  93
  94 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
  95
  96         * configure: Regenerate.
  97
  98 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
  99
 100         * configure: Regenerate.
 101
 102 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
 103
 104         * configure: Regenerate.
 105
 106 2023-08-03  Richard Biener  <rguenther@suse.de>
 107
 108         * zstdtest.c (test_samples): Properly compute the allocation
 109         size for the uncompressed data.
 110
 111 2023-07-31  Ian Lance Taylor  <iant@golang.org>
 112
 113         * configure.ac: Check for _pgmptr declaration.
 114         * fileline.c (fileline_initialize): Check for _pgmfptr before
 115         /proc/self/exec.
 116         * configure, config.h.in: Regenerate.
 117
 118 2023-03-28  Ian Lance Taylor  <iant@golang.org>
 119
 120         * elf.c (elf_zstd_read_fse): Call elf_fetch_bits after reading
 121         bits, not before.  Add unlikely for error case.
 122         (elf_zstd_offset_table): Regenerate.
 123         (elf_zstd_read_huff): Clear 13 entries in weight_mark, not 12.
 124         (elf_zstd_read_literals): For a single stream adjust by
 125         total_streams_size, not compressed_size.
 126
 127 2023-01-20  Ian Lance Taylor  <iant@golang.org>
 128
 129         * dwarf.c (struct function_addrs): Change low and high fields to
 130         uintptr_t.
 131         (struct unit_addrs): Likewise.
 132         (resolve_addr_index): Change address parameter to uintptr_t*.
 133         (add_unit_addr): Change lowpc and highpc parameters to uintptr_t.
 134         (add_function_range): Likewise.
 135         (struct pcrange): Change lowpc and highpc fields to uintptr_t.
 136         (add_low_high_range): Change add_range lowpc and highpc parameters
 137         to uintptr_t.
 138         (add_ranges_from_ranges): Likewise.
 139         (add_ranges_from_rnglists): Likewise.
 140         (add_low_high_range): Chnage lowpc and highpc variables to
 141         uintpr_t.
 142         (add_ranges_from_rnglists): Change some local variables to
 143         uintptr_t.
 144         (add_ranges_from_ranges): Change base parameter to uintptr_t.
 145         (add_ranges_from_rnglists): Likewise.
 146         (read_function_entry): Likewise.
 147         (resolve_addr_index): Add explicit casts to uintptr_t.
 148         (update_pcrange): Likewise.
 149         (add_ranges_from_ranges): Likewise.
 150         (add_ranges_from_rnglists): Likewise.
 151         (read_function_entry): Likewise.
 152
 153 2023-01-17  Martin Liska  <mliska@suse.cz>
 154
 155         * Makefile.in: Regenerate.
 156
 157 2023-01-06  Ian Lance Taylor  <iant@golang.org>
 158
 159         PR libbacktrace/108297
 160         * configure.ac: Test whether linker supports --build-id.
 161         * Makefile.am: Only run --build-id tests if supported.
 162         * configure, Makefile.in: Regenerate.
 163
 164 2022-12-17  Ian Lance Taylor  <iant@golang.org>
 165
 166         * elf.c (elf_fetch_backward_init): New static function.
 167         (ZSTD_TABLE_SIZE): Use huffman scratch space size rather than
 168         literal size.
 169         (ZSTD_TABLE_WORK_LIT_SIZE): Don't define.
 170         (elf_zstd_read_huff): Use elf_fetch_backward_init.
 171         (elf_zstd_read_literals): New static function.
 172         (ZSTD_LIT_RAW, ZSTD_LIT_RLE, ZSTD_LIT_HUFF): Don't define.
 173         (struct elf_zstd_literals): Don't define.
 174         (elf_zstd_literal_output): Remove static function.
 175         (elf_zstd_decompress): Use elf_fetch_backward_init and
 176         elf_zstd_read_literals.  Rewrite literal copying.<
 177
 178 2022-12-10  Ian Lance Taylor  <iant@golang.org>
 179
 180         * elf.c (ZSTD_TABLE_*): Use elf_zstd_fse_baseline_entry.
 181         (ZSTD_ENCODE_BASELINE_BITS): Define.
 182         (ZSTD_DECODE_BASELINE, ZSTD_DECODE_BASEBITS): Define.
 183         (elf_zstd_literal_length_base): New static const array.
 184         (elf_zstd_match_length_base): Likewise.
 185         (struct elf_zstd_fse_baseline_entry): Define.
 186         (elf_zstd_make_literal_baseline_fse): New static function.
 187         (elf_zstd_make_offset_baseline_fse): Likewise.
 188         (elf_zstd_make_match_baseline_fse): Likewise.
 189         (print_table, main): Use elf_zstd_fse_baseline_entry.
 190         (elf_zstd_lit_table, elf_zstd_match_table): Likewise.
 191         (elf_zstd_offset_table): Likewise.
 192         (struct elf_zstd_seq_decode): Likewise.  Remove use_rle and rle
 193         fields.
 194         (elf_zstd_unpack_seq_decode): Use elf_zstd_fse_baseline_entry,
 195         taking a conversion function.  Convert RLE to FSE.
 196         (elf_zstd_literal_length_baseline): Remove.
 197         (elf_zstd_literal_length_bits): Remove.
 198         (elf_zstd_match_length_baseline): Remove.
 199         (elf_zstd_match_length_bits): Remove.
 200         (elf_zstd_decompress): Use elf_zstd_fse_baseline_entry.  Rewrite
 201         and simplify main loop.
 202
 203 2022-12-08  Ian Lance Taylor  <iant@golang.org>
 204
 205         * configure.ac: Check for zstd library and
 206         --compress-debug-sections=zstd linker option.
 207         * Makefile.am (zstdtest_*): New targets.
 208         (zstdtest_alloc_*, ctestzstd_*): New targets.
 209         (BUILDTESTS): Add zstdtest, zstdtest_alloc, ctestzstd as
 210         appropriate.
 211         * elf.c (ELFCOMPRESS_ZSTD): Define.
 212         (elf_fetch_bits): Rename from elf_zlib_fetch.  Update uses.
 213         (elf_fetch_bits_backward): New static function.
 214         (ZLIB_HUFFMAN_*): Rename from HUFFMAN_*.  Update uses.
 215         (ZLIB_TABLE_*): Rename from ZDEBUG_TABLE_*.  Update uses.
 216         (ZSTD_TABLE_*): Define.
 217         (struct elf_zstd_fse_entry): Define.
 218         (elf_zstd_read_fse): New static function.
 219         (elf_zstd_build_fse): Likewise.
 220         (lit): Define if BACKTRACE_GENERATE_ZSTD_FSE_TABLES.
 221         (match, offset, next, print_table, main): Likewise.
 222         (elf_zstd_lit_table): New static const array.
 223         (elf_zstd_match_table, elf_zstd_offset_table): Likewise.
 224         (elf_zstd_read_huff): New static function.
 225         (struct elf_zstd_seq_decode): Define.
 226         (elf_zstd_unpack_seq_decode): New static function.
 227         (ZSTD_LIT_*): Define.
 228         (struct elf_zstd_literals): Define.
 229         (elf_zstd_literal_output): New static function.
 230         (ZSTD_LITERAL_LENGTH_BASELINE_OFFSET): Define.
 231         (elf_zstd_literal_length_baseline): New static const array.
 232         (elf_zstd_literal_length_bits): Likewise.
 233         (ZSTD_MATCH_LENGTH_BASELINE_OFFSET): Define.
 234         (elf_zstd_match_length_baseline): New static const array.
 235         (elf_zstd_match_length_bits): Likewise.
 236         (elf_zstd_decompress): New static function.
 237         (ZDEBUG_TABLE_SIZE): New definition.
 238         (elf_uncompress_chdr): Support ELF_COMPRESS_ZSTD.
 239         (backtrace_uncompress_zstd): New function.
 240         (elf_add): Use ZLIB_TABLE_SIZE for zlib-gnu sections.
 241         * internal.h (backtrace_uncompress_zstd): Declare.
 242         * zstdtest.c: New file.
 243         * configure, config.h.in, Makefile.in: Regenerate.
 244
 245 2022-10-12  Martin Liska  <mliska@suse.cz>
 246
 247         * configure: Regenerate.
 248
 249 2022-10-11  Olivier Hainque  <hainque@adacore.com>
 250             Olivier Hainque  <hainque@adacore.com>
 251
 252         * configure: Regenerate.
 253
 254 2022-07-08  Ian Lance Taylor  <iant@golang.org>
 255
 256         * configure.ac: Check for sys/link.h.  Use either link.h or
 257         sys/link.h when checking for dl_iterate_phdr.
 258         * elf.c: Include sys/link.h if available.
 259         * configure, config.h.in: Regenerate.
 260
 261 2022-07-07  Ian Lance Taylor  <iant@golang.org>
 262
 263         * macho.c (backtrace_initialize) [HAVE_MACH_O_DYLD_H]: Don't exit
 264         loop if we can't find debug info for one shared library.
 265
 266 2022-07-07  Ian Lance Taylor  <iant@golang.org>
 267
 268         * Makefile.am (MAKETESTS): New variable split out of TESTS.
 269         (CLEANFILES): Replace TESTS with BUILDTESTS and MAKETESTS.
 270         * Makefile.in: Regenerate.
 271
 272 2022-06-27  Ian Lance Taylor  <iant@golang.org>
 273
 274         * configure.ac: Use grep instead of fgrep.
 275         * configure, Makefile.in: Regenerate.
 276
 277 2022-05-28  Ian Lance Taylor  <iant@golang.org>
 278
 279         PR libbacktrace/105721
 280         * README: Update.
 281
 282 2022-04-05  Ian Lance Taylor  <iant@golang.org>
 283
 284         * elf.c (elf_zlib_inflate): Don't skip initial aligned byte in
 285         uncompressed block.
 286
 287 2022-02-17  Ian Lance Taylor  <iant@golang.org>
 288
 289         * dwarf.c (find_address_ranges): Handle skeleton units.
 290         (read_function_entry): Likewise.
 291
 292 2022-02-16  Ian Lance Taylor  <iant@golang.org>
 293
 294         * dwarf.c (build_address_map): Initialize DWARF 5 fields of unit.
 295
 296 2022-02-03  David Seifert  <soap@gentoo.org>
 297             Jakub Jelinek  <jakub@redhat.com>
 298
 299         * configure.ac: Support --disable-werror.
 300         * configure: Regenerate.
 301
 302 2021-12-28  Francois-Xavier Coudert  <fxcoudert@gmail.com>
 303
 304         PR libbacktrace/103822
 305         * Makefile.am: Fix newline.
 306         * Makefile.in: Regenerate.
 307
 308 2021-11-12  Martin Liska  <mliska@suse.cz>
 309
 310         PR libbacktrace/103167
 311         * elf.c (elf_uncompress_lzma_block): Cast to unsigned int.
 312         (elf_uncompress_lzma): Likewise.
 313         * xztest.c (test_samples): memcpy only if v > 0.
 314
 315 2021-10-22  Martin Liska  <mliska@suse.cz>
 316
 317         PR testsuite/102742
 318         * btest.c (MIN_DESCRIPTOR): New.
 319         (MAX_DESCRIPTOR): Likewise.
 320         (check_available_files): Likewise.
 321         (check_open_files): Check only file descriptors that
 322         were not available at the entry.
 323         (main): Call check_available_files.
 324
 325 2021-08-13  Sergei Trofimovich  <siarheit@google.com>
 326
 327         * install-debuginfo-for-buildid.sh.in: Force non-localized readelf
 328         output with LANG=C.
 329
 330 2021-06-28  Clément Chigot  <clement.chigot@atos.net>
 331
 332         * xcoff.c (SSUBTYP_DWRNGES): New define.
 333         (xcoff_add): Use correct XCOFF DWARF section subtype
 334         for DEBUG_RANGES. Remove lineoff workaround.
 335         Adjust base_address.
 336         (xcoff_initialize_syminfo): Adapt to new base_address.
 337         (xcoff_lookup_pc): Likewise.
 338         (xcoff_initialize_fileline): Likewise.
 339
 340 2021-05-03  H.J. Lu  <hjl.tools@gmail.com>
 341
 342         PR bootstrap/99703
 343         * configure: Regenerated.
 344
 345 2021-03-03  Ian Lance Taylor  <iant@golang.org>
 346
 347         * dwarf.c (read_line_program): Don't special case file 0.
 348         (read_function_entry): Likewise.
 349
 350 2021-03-02  Ian Lance Taylor  <iant@golang.org>
 351
 352         PR libbacktrace/98818
 353         * dwarf.c (dwarf_buf_error): Add errnum parameter.  Change all
 354         callers.
 355         * backtrace.h: Update backtrace_error_callback comment.
 356
 357 2021-02-12  Ian Lance Taylor  <iant@golang.org>
 358
 359         * configure.ac: Check for objcopy --add-gnu-debuglink by using
 360         objcopy --help.
 361         * configure: Regenerate
 362
 363 2021-01-18  Ian Lance Taylor  <iant@golang.org>
 364
 365         * Makefile.am (%_dwz): If dwz fails, use uncompressed debug info.
 366         * Makefile.in: Regenerate.
 367         * configure: Regenerate.
 368
 369 2021-01-18  Ian Lance Taylor  <iant@golang.org>
 370
 371         PR debug/98716
 372         * dwarf.c (read_v2_paths): Allocate zero entry for dirs and
 373         filenames.
 374         (read_line_program): Remove parameter u, change caller.  Don't
 375         subtract one from dirs and filenames index.
 376         (read_function_entry): Don't subtract one from filenames index.
 377
 378 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 379
 380         * configure: Re-generate.
 381
 382 2020-12-05  Iain Sandoe  <iain@sandoe.co.uk>
 383
 384         PR target/97865
 385         * configure: Regenerate.
 386
 387 2020-12-02  Ian Lance Taylor  <iant@golang.org>
 388
 389         * dwarf.c (resolve_string): Use > rather than >= to check whether
 390         string index extends past buffer.
 391         (resolve_addr_index): Similarly for address index.
 392
 393 2020-11-29  John David Anglin  <danglin@gcc.gnu.org>
 394
 395         * configure: Regenerate.
 396
 397 2020-10-20  Ian Lance Taylor  <iant@golang.org>
 398
 399         * internal.h (ATTRIBUTE_FALLTHROUGH): Define.
 400         * elf.c (elf_zlib_inflate): Use ATTRIBUTE_FALLTHROUGH.
 401
 402 2020-09-28  Ian Lance Taylor  <iant@golang.org>
 403
 404         PR libbacktrace/97082
 405         * Makefile.am (check_DATA): Add mtest.dSYM if USE_DSYMUTIL.
 406         * Makefile.in: Regenerate.
 407
 408 2020-09-28  Ian Lance Taylor  <iant@golang.org>
 409
 410         PR libbacktrace/97227
 411         * configure.ac (USE_DSYMUTIL): Define instead of HAVE_DSYMUTIL.
 412         * Makefile.am: Change all uses of HAVE_DSYMUTIL to USE_DSYMUTIL.
 413         * configure: Regenerate.
 414         * Makefile.in: Regenerate.
 415
 416 2020-09-23  Ian Lance Taylor  <iant@golang.org>
 417
 418         * dwarf.c (report_inlined_functions): Handle PC == -1 and PC ==
 419         p->low.
 420         (dwarf_lookup_pc): Likewise.
 421
 422 2020-09-17  Ian Lance Taylor  <iant@golang.org>
 423
 424         PR libbacktrace/97080
 425         * fileline.c (backtrace_syminfo_to_full_callback): New function.
 426         (backtrace_syminfo_to_full_error_callback): New function.
 427         * elf.c (elf_nodebug): Call syminfo_fn if possible.
 428         * internal.h (struct backtrace_call_full): Define.
 429         (backtrace_syminfo_to_full_callback): Declare.
 430         (backtrace_syminfo_to_full_error_callback): Declare.
 431         * mtest.c (f3): Only check all[i] if data.index permits.
 432
 433 2020-09-16  Iain Sandoe  <iain@sandoe.co.uk>
 434
 435         * macho.c (MACH_O_CPU_TYPE_PPC): New.
 436         (MACH_O_CPU_TYPE_PPC64): New.
 437         Add compile-tests for powerpc to the Mach-O variants.
 438
 439 2020-09-14  Ian Lance Taylor  <iant@golang.org>
 440
 441         PR libbacktrace/93608
 442         Add support for MiniDebugInfo.
 443         * elf.c (struct elf_view): Define.  Replace most uses of
 444         backtrace_view with elf_view.
 445         (elf_get_view): New static functions.  Replace most calls of
 446         backtrace_get_view with elf_get_view.
 447         (elf_release_view): New static functions.  Replace most calls of
 448         backtrace_release_view with elf_release_view.
 449         (elf_uncompress_failed): Rename from elf_zlib_failed.  Change all
 450         callers.
 451         (LZMA_STATES, LZMA_POS_STATES, LZMA_DIST_STATES): Define.
 452         (LZMA_DIST_SLOTS, LZMA_DIST_MODEL_START): Define.
 453         (LZMA_DIST_MODEL_END, LZMA_FULL_DISTANCES): Define.
 454         (LZMA_ALIGN_SIZE, LZMA_LEN_LOW_SYMBOLS): Define.
 455         (LZMA_LEN_MID_SYMBOLS, LZMA_LEN_HIGH_SYMBOLS): Define.
 456         (LZMA_LITERAL_CODERS_MAX, LZMA_LITERAL_CODER_SIZE): Define.
 457         (LZMA_PROB_IS_MATCH_LEN, LZMA_PROB_IS_REP_LEN): Define.
 458         (LZMA_PROB_IS_REP0_LEN, LZMA_PROB_IS_REP1_LEN): Define.
 459         (LZMA_PROB_IS_REP2_LEN, LZMA_PROB_IS_REP0_LONG_LEN): Define.
 460         (LZMA_PROB_DIST_SLOT_LEN, LZMA_PROB_DIST_SPECIAL_LEN): Define.
 461         (LZMA_PROB_DIST_ALIGN_LEN): Define.
 462         (LZMA_PROB_MATCH_LEN_CHOICE_LEN): Define.
 463         (LZMA_PROB_MATCH_LEN_CHOICE2_LEN): Define.
 464         (LZMA_PROB_MATCH_LEN_LOW_LEN): Define.
 465         (LZMA_PROB_MATCH_LEN_MID_LEN): Define.
 466         (LZMA_PROB_MATCH_LEN_HIGH_LEN): Define.
 467         (LZMA_PROB_REP_LEN_CHOICE_LEN): Define.
 468         (LZMA_PROB_REP_LEN_CHOICE2_LEN): Define.
 469         (LZMA_PROB_REP_LEN_LOW_LEN): Define.
 470         (LZMA_PROB_REP_LEN_MID_LEN): Define.
 471         (LZMA_PROB_REP_LEN_HIGH_LEN): Define.
 472         (LZMA_PROB_LITERAL_LEN): Define.
 473         (LZMA_PROB_IS_MATCH_OFFSET, LZMA_PROB_IS_REP_OFFSET): Define.
 474         (LZMA_PROB_IS_REP0_OFFSET, LZMA_PROB_IS_REP1_OFFSET): Define.
 475         (LZMA_PROB_IS_REP2_OFFSET): Define.
 476         (LZMA_PROB_IS_REP0_LONG_OFFSET): Define.
 477         (LZMA_PROB_DIST_SLOT_OFFSET): Define.
 478         (LZMA_PROB_DIST_SPECIAL_OFFSET): Define.
 479         (LZMA_PROB_DIST_ALIGN_OFFSET): Define.
 480         (LZMA_PROB_MATCH_LEN_CHOICE_OFFSET): Define.
 481         (LZMA_PROB_MATCH_LEN_CHOICE2_OFFSET): Define.
 482         (LZMA_PROB_MATCH_LEN_LOW_OFFSET): Define.
 483         (LZMA_PROB_MATCH_LEN_MID_OFFSET): Define.
 484         (LZMA_PROB_MATCH_LEN_HIGH_OFFSET): Define.
 485         (LZMA_PROB_REP_LEN_CHOICE_OFFSET): Define.
 486         (LZMA_PROB_REP_LEN_CHOICE2_OFFSET): Define.
 487         (LZMA_PROB_REP_LEN_LOW_OFFSET): Define.
 488         (LZMA_PROB_REP_LEN_MID_OFFSET): Define.
 489         (LZMA_PROB_REP_LEN_HIGH_OFFSET): Define.
 490         (LZMA_PROB_LITERAL_OFFSET): Define.
 491         (LZMA_PROB_TOTAL_COUNT): Define.
 492         (LZMA_IS_MATCH, LZMA_IS_REP, LZMA_IS_REP0): Define.
 493         (LZMA_IS_REP1, LZMA_IS_REP2, LZMA_IS_REP0_LONG): Define.
 494         (LZMA_DIST_SLOT, LZMA_DIST_SPECIAL, LZMA_DIST_ALIGN): Define.
 495         (LZMA_MATCH_LEN_CHOICE, LZMA_MATCH_LEN_CHOICE2): Define.
 496         (LZMA_MATCH_LEN_LOW, LZMA_MATCH_LEN_MID): Define.
 497         (LZMA_MATCH_LEN_HIGH, LZMA_REP_LEN_CHOICE): Define.
 498         (LZMA_REP_LEN_CHOICE2, LZMA_REP_LEN_LOW): Define.
 499         (LZMA_REP_LEN_MID, LZMA_REP_LEN_HIGH, LZMA_LITERAL): Define.
 500         (elf_lzma_varint): New static function.
 501         (elf_lzma_range_normalize): New static function.
 502         (elf_lzma_bit, elf_lzma_integer): New static functions.
 503         (elf_lzma_reverse_integer): New static function.
 504         (elf_lzma_len, elf_uncompress_lzma_block): New static functions.
 505         (elf_uncompress_lzma): New static function.
 506         (backtrace_uncompress_lzma): New function.
 507         (elf_add): Add memory and memory_size parameters.  Change all
 508         callers.  Look for .gnu_debugdata section, and, if found,
 509         decompress it and use it for symbols and debug info.  Permit the
 510         descriptor parameter to be -1.
 511         * internal.h (backtrace_uncompress_lzma): Declare.
 512         * mtest.c: New file.
 513         * xztest.c: New file.
 514         * configure.ac: Check for nm, xz, and comm programs.  Check for
 515         liblzma library.
 516         (HAVE_MINIDEBUG): Define.
 517         * Makefile.am (mtest_SOURCES): Define.
 518         (mtest_CFLAGS, mtest_LDADD): Define.
 519         (TESTS): Add mtest_minidebug if HAVE_MINIDEBUG.
 520         (%_minidebug): New pattern rule, if HAVE_MINIDEBUG.
 521         (xztest_SOURCES, xztest_CFLAGS, xztest_LDADD): Define.
 522         (xztest_alloc_SOURCES, xztest_alloc_CFLAGS): Define
 523         (xztest_alloc_LDADD): Define.
 524         (BUILDTESTS): Add mtest, xztest, xztest_alloc.
 525         (CLEANFILES): Add files created by minidebug pattern.
 526         (btest.lo): Correct INCDIR reference.
 527         (mtest.lo, xztest.lo, ztest.lo): New targets.
 528         * configure: Regenerate.
 529         * config.h.in: Regenerate.
 530         * Makefile.in: Regenerate.
 531
 532 2020-09-09  Ian Lance Taylor  <iant@golang.org>
 533
 534         * pecoff.c (coff_initialize_syminfo): Add is_64 parameter.
 535         (coff_add): Determine and pass is_64.
 536
 537 2020-09-09  Ian Lance Taylor  <iant@golang.org>
 538
 539         PR libbacktrace/96973
 540         * fileline.c (macho_get_executable_path): New static function.
 541         (fileline_initialize): Call macho_get_executable_path.
 542
 543 2020-09-09  Ian Lance Taylor  <iant@golang.org>
 544
 545         * dwarf.c (function_addrs_search): Compare against the next entry
 546         low address, not the high address.
 547         (unit_addrs_search): Likewise.
 548         (build_address_map): Add a trailing unit_addrs.
 549         (read_function_entry): Add a trailing function_addrs.
 550         (read_function_info): Likewise.
 551         (report_inlined_functions): Search backward for function_addrs
 552         match.
 553         (dwarf_lookup_pc): Search backward for unit_addrs and
 554         function_addrs matches.
 555
 556 2020-09-08  Ian Lance Taylor  <iant@golang.org>
 557
 558         * simple.c (simple_unwind): Correct comment spelling.
 559
 560 2020-09-08  Ian Lance Taylor  <iant@golang.org>
 561
 562         * macho.c (macho_add_dsym): Make space for '/' in dsym.  Use
 563         correct length when freeing diralc.
 564
 565 2020-09-08  Ian Lance Taylor  <iant@golang.org>
 566
 567         PR libbacktrace/96973
 568         * macho.c (macho_add_fat): Correctly swap 32-bit file offset.
 569
 570 2020-09-08  Ian Lance Taylor  <iant@golang.org>
 571
 572         PR libbacktrace/96971
 573         * filetype.awk: Only match magic number at start of line.
 574
 575 2020-08-24  Ian Lance Taylor  <iant@golang.org>
 576
 577         * macho.c (MACH_O_MH_MAGIC_FAT_64): Define.
 578         (MACH_O_MH_CIGAM_FAT_64): Define.
 579         (struct macho_fat_arch_64): Define.
 580         (macho_add_fat): Add and use is_64 parameter.
 581         (macho_add): Recognize 64-bit fat files.
 582
 583 2020-07-30  H.J. Lu  <hjl.tools@gmail.com>
 584
 585         PR bootstrap/96202
 586         * configure: Regenerated.
 587
 588 2020-07-08  Ian Lance Taylor  <iant@golang.org>
 589
 590         * configure.ac: Test linker support for DWARF5
 591         * configure: Regenerate
 592
 593 2020-05-29  H.J. Lu  <hjl.tools@gmail.com>
 594
 595         PR bootstrap/95413
 596         * configure: Regenerated.
 597
 598 2020-05-15  H.J. Lu  <hongjiu.lu@intel.com>
 599
 600         PR bootstrap/95147
 601         * configure: Regenerated.
 602
 603 2020-05-14  H.J. Lu  <hongjiu.lu@intel.com>
 604
 605         * configure: Regenerated.
 606
 607 2020-05-13  Ian Lance Taylor  <iant@golang.org>
 608
 609         * ztest.c (test_large): Mark state ATTRIBUTE_UNUSED.
 610
 611 2020-05-13  Ian Lance Taylor  <iant@golang.org>
 612
 613         PR go/95061
 614         * posix.c (backtrace_open): Treat EACCESS like ENOENT.
 615
 616 2020-05-12  H.J. Lu  <hongjiu.lu@intel.com>
 617
 618         * Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
 619         * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
 620         AC_SUBST(CET_HOST_FLAGS).  Clear CET_HOST_FLAGS if jit isn't
 621         enabled.
 622         * Makefile.in: Regenerated.
 623         * configure: Likewise.
 624
 625 2020-05-11  Ian Lance Taylor  <iant@golang.org>
 626
 627         PR libbacktrace/95012
 628         * configure.ac: Check for getpagesize declaration.
 629         * mmap.c: Declare getpagesize if necessary.
 630         * mmapio.c: Likewise.
 631         * configure: Regenerate.
 632         * config.h.in: Regenerate.
 633         * Makefile.in: Regenerate.
 634
 635 2020-05-09  Roland McGrath  <mcgrathr@google.com>
 636
 637         * elf.c (elf_add): Bail early if there are no section headers at all.
 638
 639 2020-05-09  Ian Lance Taylor  <iant@golang.org>
 640
 641         * elf.c (elf_add): Don't free strtab if an error occurs after
 642         recording symbol information.
 643
 644 2020-05-09  Ian Lance Taylor  <iant@golang.org>
 645
 646         PR libbacktrace/88745
 647         * macho.c: New file.
 648         * filetype.awk: Recognize Mach-O files.
 649         * Makefile.am (FORMAT_FILES): Add macho.c.
 650         (check_DATA): New variable.  Set to .dSYM if HAVE_DSYMUTIL.
 651         (%.dSYM): New pattern target.
 652         (test_macho_SOURCES, test_macho_CFLAGS): New targets.
 653         (test_macho_LDADD): New target.
 654         (BUILDTESTS): Add test_macho.
 655         (macho.lo): Add dependencies.
 656         * configure.ac: Recognize macho file type.  Check for
 657         mach-o/dyld.h.  Don't try to run objcopy if we don't find it.
 658         Look for dsymutil and define a HAVE_DSYMUTIL conditional.
 659         * Makefile.in: Regenerate.
 660         * configure: Regenerate.
 661         * config.h.in: Regenerate.
 662
 663 2020-05-09  Ian Lance Taylor  <iant@golang.org>
 664
 665         * read.c (backtrace_get_view): Support short read.
 666
 667 2020-05-09  Ian Lance Taylor  <iant@golang.org>
 668
 669         * elf.c (elf_add): If debug sections are very large or far apart,
 670         read them individually rather than as a single view.
 671
 672 2020-05-08  Ian Lance Taylor  <iant@golang.org>
 673
 674         * fileline.c (sysctl_exec_name): New static function.
 675         (sysctl_exec_name1): New macro or static function.
 676         (sysctl_exec_name2): Likewise.
 677         (fileline_initialize): Try sysctl_exec_name[12].
 678         * configure.ac: Check for sysctl args to fetch executable name.
 679         * configure: Regenerate.
 680         * config.h.in: Regenerate.
 681
 682 2020-02-15  Ian Lance Taylor  <iant@golang.org>
 683
 684         * ztest.c (test_large): Update file to current libgo test file.
 685
 686 2020-02-03  Ian Lance Taylor  <iant@golang.org>
 687
 688         * Makefile.am (libbacktrace_TEST_CFLAGS): Define.
 689         (test_elf32_CFLAGS): Use $(libbacktrace_test_CFLAGS).
 690         (test_elf_64_CFLAGS, test_xcoff_32_CFLAGS): Likewise.
 691         (test_xcoff_64_CFLAGS, test_pecoff_CFLAGS): Likewise.
 692         (test_unknown_CFLAGS, unittest_CFLAGS): Likewise.
 693         (unittest_alloc_CFLAGS, allocfail_CFLAGS): Likewise.
 694         (b2test_CFLAGS, b3test_CFLAGS, btest_CFLAGS): Likewise.
 695         (btest_lto_CFLAGS, btest_alloc_CFLAGS, stest_CFLAGS): Likewise.
 696         (stest_alloc_CFLAGS): Likewise.
 697         * Makefile.in: Regenerate.
 698         * ztest.c (error_callback_compress): Mark vdata unused.
 699         (test_large): Add casts to avoid warnings.
 700
 701 2020-01-01  Jakub Jelinek  <jakub@redhat.com>
 702
 703         Update copyright years.
 704
 705 2019-12-13  Ian Lance Taylor  <iant@golang.org>
 706
 707         Add DWARF 5 support.
 708         * dwarf.c (struct attr): Add val field.
 709         (enum attr_val_encoding): Add ATTR_VAL_ADDDRESS_INDEX,
 710         ATTR_VAL_STRING_INDEX, ATTR_VAL_RNGLISTS_INDEX.
 711         (struct line_header): Add addrsize field.
 712         (struct line_header_format): Define.
 713         (struct unit): Add str_offsets_base, addr_base, and rnglists_base
 714         fields.
 715         (read_uint24): New static function.
 716         (read_attribute): Add implicit_val parameter.  Replace dwarf_str
 717         and dwarf_str_size parameters with dwarf_sections parameter.  Add
 718         support for new DWARF 5 forms.  Change all callers.
 719         (resolve_string): New static function.
 720         (resolve_addr_index): Likewise.
 721         (read_abbrevs): Support DW_FORM_implicit_const.
 722         (struct pcrange): Add lowpc_is_addr_index, highpc_is_addr_Index,
 723         and ranges_is_index fields.
 724         (update_pcrange): Support DWARF 5 encodings.
 725         (add_high_low_range): New static function, split out of
 726         add_ranges.
 727         (add_ranges_from_ranges): Likewise.
 728         (add_ranges_from_rnglists): New static function.
 729         (add_ranges): Just call new helper functions.
 730         (find_address_ranges): Use resolve_string for strings, after
 731         reading all attributes.  Handle new DWARF 5 attributes.
 732         (build_address_map): Support DWARF 5 compilation units.
 733         (read_v2_paths): New static function, split out of
 734         read_line_header.
 735         (read_lnct): New static function.
 736         (read_line_header_format_entries): Likewise.
 737         (read_line_header): Add ddata parameter.  Support DWARF 5 line
 738         headers.  Call new helper functions.  Change all callers.
 739         (read_line_program): Use addrsize from line program header.  Don't
 740         special case directory index 0 for DWARF 5.
 741         (read_referenced_name): Use resolve_string.
 742         (read_function_entry): Handle DWARF 5 encodings.  Use
 743         resolve_string.
 744         * internal.h (enum dwarf_section): Add DEBUG_ADDR,
 745         DEBUG_STR_OFFSETS, DEBUG_LINE_STR, DEBUG_RNGLISTS.
 746         * elf.c (dwarf_section_names): Add new section names.
 747         * pecoff.c (dwarf_section_names): Likewise.
 748         * xcoff.c (xcoff_add): Clear dwarf_sections before setting
 749         fields.
 750         * configure.ac: Define HAVE_DWARF5 automake conditional.
 751         * Makefile.am (dwarf5_SOURCES): New variable if HAVE_DWARF5.
 752         (dwarf5_CFLAGS, dwarf5_LDADD): Likewise.
 753         (dwarf5_alloc_SOURCES, dwarf5_alloc_CFLAGS): Likewise.
 754         (dwarf5_alloc_LDADD): Likewise.
 755         (BUILDTESTS): Add dwarf5 tests if HAVE_DWARF5.
 756         (CLEANFILES, clean-local): Define.
 757
 758 2019-12-08  Ian Lance Taylor  <iant@golang.org>
 759
 760         * dwarf.c (struct pcrange): Define.
 761         (update_pcrange, add_ranges): New static functions.
 762         (add_unit_addr): Change signature to work with add_ranges.  Don't
 763         add base_address here.
 764         (add_unit_ranges): Remove.
 765         (find_address_ranges): Replace str/ranges parameters with
 766         dwarf_sections.  Use update_pcrange and add_ranges.  Change all
 767         callers.
 768         (add_function_range): Change signature to work with add_ranges.
 769         Don't add base_address here.
 770         (add_function_ranges): Remove.
 771         (read_function_entry): Use update_pcrange and add_ranges.
 772
 773 2019-12-04  Ian Lance Taylor  <iant@golang.org>
 774
 775         * edtest.c (test1): Add noclone attribute.
 776
 777 2019-12-04  Ian Lance Taylor  <iant@golang.org>
 778
 779         * internal.h (enum dwarf_section): Define.
 780         (struct dwarf_sections): Define.
 781         (backtrace_dwarf_add): Update declaration to replace specific
 782         section parameters with dwarf_sections parameter.
 783         * dwarf.c (struct dwarf_data): Replace specific section fields
 784         with dwarf_sections field.
 785         (read_attribute): Use dwarf_sections with altlink.
 786         (build_address_map): Replace specific section parameters with
 787         dwarf_sections parameter.  Change all callers.
 788         (read_line_info): Use dwarf_sections with ddata.
 789         (read_referenced_name): Likewise.
 790         (add_function_ranges): Likewise.
 791         (read_function_entry): Likewise.
 792         (read_function_info): Likewise.
 793         (build_dwarf_data): Replace specific section parameters with
 794         dwarf_sections parameter.  Change all callers.
 795         (backtrace_dwarf_add): Likewise.
 796         * elf.c (enum debug_section): Remove.
 797         (dwarf_section_names): Remove .zdebug names.
 798         (elf_add): Track zsections separately.  Build dwarf_sections.
 799         * pecoff.c (enum debug_section): Remove.
 800         (struct debug_section_info): Remove data field.
 801         (coff_add): Build dwarf_sections.
 802         * xcoff.c (enum dwarf_section): Remove.  Replace DWSECT_xxx
 803         references with DEBUG_xxx references.
 804         (xcoff_add): Build dwarf_sections.
 805
 806 2019-09-27  Maciej W. Rozycki  <macro@wdc.com>
 807
 808         * configure: Regenerate.
 809
 810 2019-09-26  Ian Lance Taylor  <iant@golang.org>
 811
 812         PR libbacktrace/91908
 813         * pecoff.c (backtrace_initialize): Explicitly cast unchecked
 814         __sync_bool_compare_and_swap to void.
 815         * xcoff.c (backtrace_initialize): Likewise.
 816
 817 2019-09-03  Ulrich Weigand  <uweigand@de.ibm.com>
 818
 819         * configure.ac: Remove references to spu.
 820         * configure: Regenerate.
 821
 822 2019-05-24  Clement Chigot  <clement.chigot@atos.net>
 823
 824         * Makefile.am (BUILDTESTS): Remove test_elf, add test_elf_32 and
 825         test_elf_64.
 826         * Makefile.in: Regenerate.
 827
 828 2019-05-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 829
 830         * configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
 831         handling.
 832         * configure: Regenerate.
 833
 834 2019-03-11  Ian Lance Taylor  <iant@golang.org>
 835
 836         PR libbacktrace/89669
 837         * Makefile.am (BUILDTESTS): Only add ztest and ztest_alloc if
 838         HAVE_ELF.
 839         * Makefile.in: Regenerate.
 840
 841 2019-02-26  Tom de Vries  <tdevries@suse.de>
 842
 843         * btest.c (test5): Allow global.* as minimal symbol name for global.
 844
 845 2019-02-26  Tom de Vries  <tdevries@suse.de>
 846
 847         * Makefile.am (TESTS): Only add b3test_dwz_buildid if HAVE_DWZ.
 848         * Makefile.in: Regenerate.
 849
 850 2019-02-12  Tom de Vries  <tdevries@suse.de>
 851
 852         PR libbacktrace/81983
 853         * dwarf.c (dwarf_lookup_pc): Don't call bsearch if nmemb == 0.
 854
 855 2019-02-10  Tom de Vries  <tdevries@suse.de>
 856
 857         * Makefile.am (BUILDTESTS): Add btest_lto.
 858         * Makefile.in: Regenerate.
 859         * btest.c (test1, f2, f3, test3, f22, f23): Declare with
 860         __attribute__((noclone)).
 861
 862 2019-02-08  Tom de Vries  <tdevries@suse.de>
 863
 864         * backtrace.c (backtrace_full): Declare with __attribute__((noinline)).
 865         * print.c (backtrace_print): Same.
 866         * simple.c (backtrace_simple): Same.
 867
 868 2019-02-08  Tom de Vries  <tdevries@suse.de>
 869
 870         PR libbacktrace/78063
 871         * dwarf.c (build_address_map): Keep all parsed units.
 872         (read_referenced_name_from_attr): Handle DW_FORM_ref_addr.
 873
 874 2019-01-31  Tom de Vries  <tdevries@suse.de>
 875
 876         PR libbacktrace/89136
 877         * elf.c (elf_add): Read build-id if with_buildid_data.  Fix
 878         'debugaltlink_name_len =+ 1'.
 879
 880 2019-01-29  Tom de Vries  <tdevries@suse.de>
 881
 882         * install-debuginfo-for-buildid.sh.in: New script.
 883         * Makefile.am (check_PROGRAMS): Add b2test and b3test.
 884         (TESTS): Add b2test_buildid and b3test_dwz_buildid.
 885         * Makefile.in: Regenerate.
 886         * configure.ac (HAVE_ELF): Set with AM_CONDITIONAL.
 887         (READELF): Set with AC_CHECK_PROG.
 888         (install-debuginfo-for-buildid.sh): Generate with AC_CONFIG_FILES.
 889         * configure: Regenerate.
 890         * elf.c (SYSTEM_BUILD_ID_DIR): Factor out of ...
 891         (elf_open_debugfile_by_buildid): ... here.
 892
 893 2019-01-29  Tom de Vries  <tdevries@suse.de>
 894
 895         * Makefile.am: Replace check_PROGRAMS with BUILDTESTS, except for
 896         allocfail.
 897         (TESTS): Don't add check_PROGRAMS. Add BUILDTESTS.
 898         (check_PROGRAMS): Add BUILDTESTS.
 899         * Makefile.in: Regenerate.
 900
 901 2019-01-28  Tom de Vries  <tdevries@suse.de>
 902
 903         * Makefile.am (xcoff_%.c): Generate sed result into temporary file.
 904         Use $< to access prerequisite.
 905         * Makefile.in: Regenerate.
 906
 907 2019-01-25  Nathan Sidwell  <nathan@acm.org>
 908
 909         * elf.c (elf_add): Pass "" filename to recursive call with
 910         separated debug.
 911
 912 2019-01-25  Tom de Vries  <tdevries@suse.de>
 913
 914         * elf.c (elf_add): When handling .gnu_debugaltlink, call elf_add with
 915         filename == "".
 916         * Makefile.am (TESTS): Add btest_dwz_gnudebuglink.
 917         * Makefile.in: Regenerate.
 918
 919 2019-01-25  Tom de Vries  <tdevries@suse.de>
 920
 921         * Makefile.am: Rewrite dtest rule into "%_gnudebuglink" pattern rule.
 922         (TESTS): Rename dtest to btest_gnudebuglink.
 923         * Makefile.in: Regenerate.
 924
 925 2019-01-23  Tom de Vries  <tdevries@suse.de>
 926
 927         * dwarf.c (struct unit): Use size_t for low_offset/high_offset fields.
 928         (units_search, find_unit): Use size_t for offset.
 929         (build_address_map): Use size_t for unit_offset.
 930
 931 2019-01-20  Gerald Pfeifer  <gerald@pfeifer.com>
 932
 933         * allocfail.c (main): Increase portability of printf statement.
 934
 935 2019-01-18  Ian Lance Taylor  <iant@golang.org>
 936
 937         PR libbacktrace/88890
 938         * mmapio.c (backtrace_get_view): Change size parameter to
 939         uint64_t.  Check that value fits in size_t.
 940         * read.c (backtrace_get_view): Likewise.
 941         * internal.h (backtrace_get_view): Update declaration.
 942         * elf.c (elf_add): Pass shstrhdr->sh_size to backtrace_get_view.
 943
 944 2019-01-17  Tom de Vries  <tdevries@suse.de>
 945
 946         PR libbacktrace/82857
 947         * configure.ac (DWZ): Set with AC_CHECK_PROG.
 948         (HAVE_DWZ): Set with AM_CONDITIONAL.
 949         * configure: Regenerate.
 950         * Makefile.am (TESTS): Add btest_dwz.
 951         * Makefile.in: Regenerate.
 952
 953 2019-01-17  Tom de Vries  <tdevries@suse.de>
 954
 955         PR libbacktrace/82857
 956         * dwarf.c (enum attr_val_encoding): Add ATTR_VAL_REF_ALT_INFO.
 957         (read_attribute): Handle DW_FORM_GNU_ref_alt using
 958         ATTR_VAL_REF_ALT_INFO.
 959         (read_referenced_name_from_attr): Handle DW_FORM_GNU_ref_alt.
 960
 961 2019-01-17  Tom de Vries  <tdevries@suse.de>
 962
 963         * dwarf.c (struct unit): Add low_offset and high_offset fields.
 964         (struct unit_vector): New type.
 965         (struct dwarf_data): Add units and units_counts fields.
 966         (find_unit): New function.
 967         (find_address_ranges): Add and handle unit_tag parameter.
 968         (build_address_map): Add and handle units_vec parameter.
 969         (build_dwarf_data): Pass units_vec to build_address_map.  Store resulting
 970         units vector.
 971
 972 2019-01-17  Tom de Vries  <tdevries@suse.de>
 973
 974         PR libbacktrace/82857
 975         * dwarf.c (read_attribute): Handle DW_FORM_GNU_strp_alt
 976         using altlink.
 977
 978 2019-01-17  Tom de Vries  <tdevries@suse.de>
 979
 980         * dwarf.c (enum attr_val_encoding): Add ATTR_VAL_NONE.
 981         (read_attribute): Add altlink parameter.  Handle missing altlink for
 982         DW_FORM_GNU_strp_alt and DW_FORM_GNU_ref_alt.
 983         (find_address_ranges, build_address_map, build_dwarf_data): Add and
 984         handle altlink parameter.
 985         (read_referenced_name, read_function_entry): Add argument to
 986         read_attribute call.
 987
 988 2019-01-17  Tom de Vries  <tdevries@suse.de>
 989
 990         * dwarf.c (struct dwarf_data): Add altlink field.
 991         (backtrace_dwarf_add): Add and handle fileline_altlink parameter.
 992         * elf.c (elf_add): Add argument to backtrace_dwarf_add call.
 993         (phdr_callback, backtrace_initialize): Add argument to elf_add calls.
 994         * internal.h (backtrace_dwarf_add): Add fileline_altlink parameter.
 995         * pecoff.c (coff_add): Add argument to backtrace_dwarf_add call.
 996         * xcoff.c (xcoff_add): Same.
 997
 998 2019-01-17  Tom de Vries  <tdevries@suse.de>
 999
1000         * internal.h (backtrace_dwarf_add): Add fileline_entry parameter.
1001         * dwarf.c (backtrace_dwarf_add): Add and handle fileline_entry parameter.
1002         * elf.c (elf_add): Add and handle fileline_entry parameter.  Add
1003         argument to backtrace_dwarf_add call.
1004         (phdr_callback, backtrace_initialize): Add argument to elf_add calls.
1005         * pecoff.c (coff_add): Add argument to backtrace_dwarf_add call.
1006         * xcoff.c (xcoff_add): Same.
1007
1008 2019-01-17  Tom de Vries  <tdevries@suse.de>
1009
1010         * elf.c (elf_add): Add and handle with_buildid_data and
1011         with_buildid_size parameters.  Handle .gnu_debugaltlink section.
1012         (phdr_callback, backtrace_initialize): Add arguments to elf_add calls.
1013
1014 2019-01-16  Tom de Vries  <tdevries@suse.de>
1015
1016         * dwarf.c (read_referenced_name_from_attr): New function.  Factor out
1017         of ...
1018         (read_referenced_name): ... here, and ...
1019         (read_function_entry): ... here.
1020
1021 2019-01-16  Tom de Vries  <tdevries@suse.de>
1022
1023         * dwarf.c (read_referenced_name): Don't allow DW_AT_name to override any
1024         name.
1025         (read_function_entry): Same.  Don't allow name found via
1026         DW_AT_abstract_origin or case DW_AT_specification to override linkage
1027         name.
1028
1029 2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>
1030
1031         PR other/16615
1032
1033         * backtrace.h: Mechanically replace "can not" with "cannot".
1034
1035 2019-01-01  Jakub Jelinek  <jakub@redhat.com>
1036
1037         Update copyright years.
1038
1039 2018-12-29  Gerald Pfeifer  <gerald@pfeifer.com>
1040
1041         * Makefile.am (xcoff_%.c): Use an actual newline instead of \n
1042         in sed pattern.
1043         * Makefile.in: Regenerate.
1044
1045 2018-12-28  Tom de Vries  <tdevries@suse.de>
1046
1047         * dwarf.c (build_address_map): Reuse unused units.
1048
1049 2018-12-28  Tom de Vries  <tdevries@suse.de>
1050
1051         * dwarf.c (build_address_map): Simplify by removing local variable
1052         abbrevs.
1053
1054 2018-12-28  Ian Lance Taylor  <iant@golang.org>
1055             Tom de Vries  <tdevries@suse.de>
1056
1057         PR libbacktrace/88063
1058         * dwarf.c (free_unit_addrs_vector): Remove.
1059         (build_address_map): Keep track of allocated units in vector.  Free
1060         allocated units and corresponding abbrevs upon failure.  Remove now
1061         redundant call to free_unit_addrs_vector.  Free addrs vector upon
1062         failure.  Free allocated unit vector.
1063
1064 2018-12-28  Tom de Vries  <tdevries@suse.de>
1065
1066         * dwarf.c (build_address_map): Free addrs vector upon failure.
1067
1068 2018-12-14  Tom de Vries  <tdevries@suse.de>
1069
1070         PR testsuite/88491
1071         * allocfail.sh: Remove "set -o pipefail".
1072
1073 2018-12-12  Tom de Vries  <tdevries@suse.de>
1074
1075         * Makefile.am (TESTS): Add allocfail.sh.
1076         (check_PROGRAMS): Add allocfail.
1077         * Makefile.in: Regenerate.
1078         * instrumented_alloc.c: New file.  Redefine malloc and realloc.
1079         Include alloc.c.
1080         * allocfail.c: New file.
1081         * allocfail.sh: New file.
1082
1083 2018-11-30  Tom de Vries  <tdevries@suse.de>
1084
1085         * Makefile.am (check_PROGRAMS): Add test_elf, test_xcoff_32,
1086         test_xcoff_64, test_pecoff and test_unknown.
1087         * Makefile.in: Regenerate.
1088         * test_format.c: New file.
1089
1090 2018-11-30  Tom de Vries  <tdevries@suse.de>
1091
1092         * Makefile.am : Add _with_alloc version for each test in
1093         check_PROGRAMS.
1094         * Makefile.in: Regenerate.
1095
1096 2018-11-30  Tom de Vries  <tdevries@suse.de>
1097
1098         * internal.h (backtrace_vector_free): New static inline fuction,
1099         factored out of ...
1100         * dwarf.c (read_line_info): ... here.
1101
1102 2018-11-28  Tom de Vries  <tdevries@suse.de>
1103
1104         * dwarf.c (read_abbrevs): Fix handling of abbrevs->abbrevs allocation
1105         failure.
1106
1107 2018-11-27  Tom de Vries  <tdevries@suse.de>
1108
1109         * mmap.c (backtrace_vector_release): Same.
1110         * unittest.c (test1): Add check.
1111
1112 2018-11-27  Tom de Vries  <tdevries@suse.de>
1113
1114         * alloc.c (backtrace_vector_release): Handle vec->size == 0 using free
1115         instead of realloc.
1116         * Makefile.am (check_PROGRAMS): Add unittest.
1117         * Makefile.in: Regenerate.
1118         * unittest.c: New file.
1119
1120 2018-11-22  Tom de Vries  <tdevries@suse.de>
1121
1122         * dwarf.c (read_initial_length): Factor out of ...
1123         (build_address_map, read_line_info): ... here.
1124
1125 2018-11-21  Tom de Vries  <tdevries@suse.de>
1126
1127         * dwarf.c (read_string): Factor out of ...
1128         (read_attribute, read_line_header, read_line_program): ... here.
1129
1130 2018-10-31  Joseph Myers  <joseph@codesourcery.com>
1131
1132         PR bootstrap/82856
1133         * Makefile.am: Include multilib.am.
1134         * configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
1135         * Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
1136
1137 2018-10-05  Ian Lance Taylor  <iant@golang.org>
1138
1139         PR libbacktrace/87529
1140         * backtrace.h: Document that backtrace_create_state should be
1141         called only once.
1142
1143 2018-08-05 Iain Buclaw  <ibuclaw@gdcproject.org>
1144
1145         * configure.ac: Move define of HAVE_ZLIB into check for -lz.
1146         * Makefile.in: Regenerate.
1147         * config.h.in: Likewise.
1148         * configure: Likewise.
1149
1150 2018-08-01  Tony Reix  <tony.reix@atos.net>
1151
1152         * xcoff.c (struct xcoff_line, struct xcoff_line_vector): Remove.
1153         (struct xcoff_func, struct xcoff_func_vector): New structs.
1154         (xcoff_syminfo): Drop leading dot from symbol name.
1155         (xcoff_line_compare, xcoff_line_search): Remove.
1156         (xcoff_func_compare, xcoff_func_search): New static functions.
1157         (xcoff_lookup_pc): Search function table.
1158         (xcoff_add_line, xcoff_process_linenos): Remove.
1159         (xcoff_initialize_fileline): Build function table.
1160
1161 2018-06-21 Denis Khalikov <d.khalikov@partner.samsung.com>
1162
1163         PR other/86198
1164         * elf.c (elf_add): Increase ".note.gnu.build-id" section size
1165         checking up to 36 bytes.
1166
1167 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
1168
1169         * configure: Regenerated.
1170
1171 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
1172
1173         * configure: Regenerated.
1174
1175 2018-04-17  Ian Lance Taylor  <iant@golang.org>
1176
1177         * backtrace.c: Revert last two changes.  Don't call mmap
1178         directly.
1179
1180 2018-04-17  Ian Lance Taylor  <iant@golang.org>
1181
1182         * backtrace.c: Include backtrace-supported.h before checking
1183         BACKTRACE_USES_MALLOC.
1184
1185 2018-04-17  Ian Lance Taylor  <iant@golang.org>
1186
1187         * backtrace.c (backtrace_full): When testing whether we can
1188         allocate memory, call mmap directly, and munmap the memory.
1189
1190 2018-04-04  Jakub Jelinek  <jakub@redhat.com>
1191
1192         PR other/85161
1193         * elf.c (elf_zlib_fetch): Fix up predefined macro names in test for
1194         big endian, only use 32-bit loads if endianity macros are predefined
1195         and indicate big or little endian.
1196
1197 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
1198
1199         PR target/84148
1200         * configure: Regenerate.
1201
1202 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
1203
1204         PR other/82368
1205         * elf.c (SHT_PROGBITS): Undefine and define.
1206
1207 2018-02-14  Jakub Jelinek  <jakub@redhat.com>
1208
1209         PR other/82368
1210         * elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define.
1211         (struct elf_ppc64_opd_data): New type.
1212         (elf_initialize_syminfo): Add opd argument, handle symbols
1213         pointing into the PowerPC64 ELFv1 .opd section.
1214         (elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer
1215         to structure with .opd data to elf_initialize_syminfo.
1216
1217 2018-01-31  Ian Lance Taylor  <iant@golang.org>
1218
1219         * elf.c (elf_add): Close descriptor if we use a debugfile.
1220         * btest.c (check_open_files): New static function.
1221         (main): Call check_open_files.
1222
1223 2018-01-25  Ian Lance Taylor  <iant@golang.org>
1224
1225         * elf.c (elf_open_debugfile_by_debuglink): Don't check CRC if the
1226         desired CRC is zero.
1227         (elf_add): Don't clear *found_sym and *found_dwarf if debuginfo.
1228
1229 2018-01-25  Ian Lance Taylor  <iant@golang.org>
1230
1231         * pecoff.c (coff_add): Only release syms_view if it is valid.
1232
1233 2018-01-25  Ian Lance Taylor  <iant@golang.org>
1234
1235         * pecoff.c (coff_add): Another memcpy -> coff_read4 fix.
1236
1237 2018-01-24  Ian Lance Taylor  <iant@golang.org>
1238
1239         * pecoff.c (coff_add): Use coff_read4, not memcpy.
1240
1241 2018-01-24  Ian Lance Taylor  <iant@golang.org>
1242
1243         PR other/68239
1244         * mmap.c (backtrace_free_locked): Don't put more than 16 entries
1245         on the free list.
1246
1247 2018-01-19  Tony Reix  <tony.reix@atos.net>
1248
1249         * xcoff.c (xcoff_incl_compare): New function.
1250         (xcoff_incl_search): New function.
1251         (xcoff_process_linenos): Use bsearch to find include file.
1252         (xcoff_initialize_fileline): Sort include file information.
1253
1254 2018-01-16  Ian Lance Taylor  <iant@golang.org>
1255
1256         * elf.c (codes) [GENERATE_FIXED_HUFFMAN_TABLE]: Fix size to be
1257         288.
1258         (main) [GENERATE_FIXED_HUFFMAN_TABLE]: Pass 288 to
1259         elf_zlib_inflate_table.  Generate elf_zlib_default_dist_table.
1260         (elf_zlib_default_table): Update.
1261         (elf_zlib_default_dist_table): New static array.
1262         (elf_zlib_inflate): Use elf_zlib_default_dist_table for dist table
1263         for block type 1.
1264         * ztest.c (struct zlib_test): Add uncompressed_len.
1265         (tests): Initialize uncompressed_len field.  Add new test case.
1266         (test_samples): Use uncompressed_len field.
1267
1268 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
1269
1270         Update copyright years.
1271
1272 2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
1273
1274         * configure.ac: Add CET_FLAGS to EXTRA_FLAGS.
1275         * aclocal.m4: Regenerate.
1276         * Makefile.in: Likewise.
1277         * configure: Likewise.
1278
1279 2017-10-06  Ian Lance Taylor  <iant@golang.org>
1280
1281         * ztest.c (test_large): Pass unsigned long *, not size_t *, to
1282         zlib uncompress function.
1283
1284 2017-10-05  Ian Lance Taylor  <iant@golang.org>
1285
1286         * elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
1287         Read a four byte integer.
1288         (elf_zlib_inflate): Change val to uint64_t.  Align pin to a 32-bit
1289         boundary before ever calling elf_zlib_fetch.
1290         * ztest.c (test_large): Simplify print statements a bit.
1291
1292 2017-10-02  Ian Lance Taylor  <iant@golang.org>
1293
1294         * ztest.c: #include <errno.h>.
1295         (TEST_TIMING): Don't define, don't test.
1296         (xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME.
1297         (clockid_t, clock_gettime, CLOCK_REALTIME): Likewise.
1298         (ZLIB_CLOCK_GETTIME_ARG): Define.
1299         * configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK.
1300         * Makefile.am: Likewise.
1301         * configure, Makefile.in: Rebuild.
1302
1303 2017-10-02  Thomas Schwinge  <thomas@codesourcery.com>
1304
1305         PR other/67165
1306         * Makefile.am: Append the content of clock_gettime_link to
1307         ztest_LDADD.
1308         * configure.ac: Test for the case that clock_gettime is in librt.
1309         * Makefile.in: Regenerate.
1310         * configure: Likewise.
1311
1312         PR other/67165
1313         * configure.ac: Check for clock_gettime.
1314         * config.h.in: Regenerate.
1315         * configure: Likewise.
1316         * ztest.c (average_time, test_large): Conditionalize test timing
1317         on clock_gettime availability.
1318
1319 2017-09-29  Tony Reix  <tony.reix@atos.net>
1320
1321         * xcoff.c: Initial support for DWARF debug sections in XCOFF.
1322         (STYP_DWARF, SSUBTYP_DW*): Define.
1323         (enum dwarf_section): Define.
1324         (struct dwsect_info): Define.
1325         (xcoff_add): Look for DWARF sections, pass them to
1326         backtrace_dwarf_add.
1327
1328 2017-09-28  Ian Lance Taylor  <iant@golang.org>
1329
1330         PR other/67165
1331         * elf.c (__builtin_prefetch): Define if not __GNUC__.
1332         (unlikely): Define.
1333         (SHF_UNCOMPRESSED, ELFCOMPRESS_ZLIB): Define.
1334         (b_elf_chdr): Define type.
1335         (enum debug_section): Add ZDEBUG_xxx values.
1336         (debug_section_names): Add names for new sections.
1337         (struct debug_section_info): Add compressed field.
1338         (elf_zlib_failed, elf_zlib_fetch): New static functions.
1339         (HUFFMAN_TABLE_SIZE, HUFFMAN_VALUE_MASK): Define.
1340         (HUFFMAN_BITS_SHIFT, HUFFMAN_BITS_MASK): Define.
1341         (HUFFMAN_SECONDARY_SHIFT): Define.
1342         (ZDEBUG_TABLE_SIZE): Define.
1343         (ZDEBUG_TABLE_CODELEN_OFFSET, ZDEBUG_TABLE_WORK_OFFSET): Define.
1344         (final_next_secondary): New static variable if
1345         BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE.
1346         (elf_zlib_inflate_table): New static function.
1347         (BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE): If define, define main
1348         function to produce fixed Huffman table.
1349         (elf_zlib_default_table): New static variable.
1350         (elf_zlib_inflate): New static function.
1351         (elf_zlib_verify_checksum): Likewise.
1352         (elf_zlib_inflate_and_verify): Likewise.
1353         (elf_uncompress_zdebug): Likewise.
1354         (elf_uncompress_chdr): Likewise.
1355         (backtrace_uncompress_zdebug): New extern function.
1356         (elf_add): Look for .zdebug sections and SHF_COMPRESSED debug
1357         sections, and uncompress them.
1358         * internal.h (backtrace_compress_zdebug): Declare.
1359         * ztest.c: New file.
1360         * configure.ac: Check for -lz and check whether the linker
1361         supports --compress-debug-sections.
1362         * Makefile.am (ztest_SOURCES): New variable.
1363         (ztest_CFLAGS, ztest_LDADD): New variables.
1364         (check_PROGRAMS): Add ztest.
1365         (ctestg_SOURCES): New variable.
1366         (ctestg_CFLAGS, ctestg_LDFLAGS, ctestg_LDADD): New variables.
1367         (ctesta_SOURCES): New variable.
1368         (ctesta_CFLAGS, ctesta_LDFLAGS, ctesta_LDADD): New variables.
1369         (check_PROGRAMS): Add ctestg and ctesta.
1370         * configure, config.h.in, Makefile.in: Rebuild.
1371
1372 2017-09-22  Ian Lance Taylor  <iant@golang.org>
1373
1374         PR sanitizer/77631
1375         * configure.ac: Check for lstat and readlink.
1376         * elf.c (lstat, readlink): Provide dummy versions if real versions
1377         are not available.
1378         * configure, config.h.in: Rebuild.
1379
1380 2017-09-21  Ian Lance Taylor  <iant@google.com>
1381
1382         PR go/82284
1383         * elf.c (backtrace_initialize): Set pd.exe_filename.
1384
1385 2017-09-20  Ian Lance Taylor  <iant@golang.org>
1386             Denis Khalikov  <d.khalikov@partner.samsung.com>
1387
1388         PR sanitizer/77631
1389         Support for external debug info.
1390         * elf.c: Include <errno.h>, <sys/stat.h>, <unistd.h>.
1391         (S_ISLNK): Define if not defined.
1392         (xstrnlen): Define if strnlen is not available.
1393         (b_elf_note): Define type.
1394         (NT_GNU_BUILD_ID): Define macro.
1395         (elf_crc32, elf_crc32_file): New static functions.
1396         (elf_is_symlink, elf_readlink): New static functions.
1397         (elf_open_debugfile_by_buildid): New static function.
1398         (elf_try_debugfile): New static function.
1399         (elf_find_debugfile_by_debuglink): New static function.
1400         (elf_open_debugfile_by_debuglink): New static function.
1401         (elf_add): Add filename and debuginfo parameters.  Adjust all
1402         callers.  Look for external debug info notes, and try to fetch
1403         debug info from external file.
1404         (struct phdr_data): Add exe_filename field.
1405         (phdr_callback): Pass filename to elf_add.
1406         (backtrace_initialize): Add filename parameter.
1407         * internal.h (backtrace_initialize): Add filename parameter.
1408         * fileline.c (fileline_initialize): Pass filename to
1409         backtrace_initialize.
1410         * pecoff.c (fileline_initialize): Add unused filename parameter.
1411         * unknown.c (fileline_initialize): Likewise.
1412         * xcoff.c (fileline_initialize): Likewise.
1413         * configure.ac: Check for objcopy --add-gnu-debuglink.
1414         * Makefile.am (dtest): New test target.
1415         * configure, Makefile.in: Rebuild.
1416
1417 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
1418
1419         PR other/81096
1420         * Makefile.am (ttest_CFLAGS): Add $(AM_CFLAGS)
1421         * Makefile.in: Regenerate.
1422
1423 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
1424
1425         PR other/81096
1426         * libbacktrace/Makefile.in
1427         (HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_CFLAGS): Add $(AM_CFLAGS)
1428
1429 2017-08-02  David Edelsohn  <dje.gcc@gmail.com>
1430
1431         PR bootstrap/81638
1432         * xcoff.c (xcoff_process_linenos): Initialize incl to NULL.
1433
1434 2017-07-28  Tony Reix  <tony.reix@atos.net>
1435
1436         * xcoff.c: Don't leak a file descriptor if an archive is malformed.
1437
1438 2017-07-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1439
1440         * fileline.c (fileline_initialize): Print pid_t as long.
1441
1442 2017-07-26  Tony Reix  <tony.reix@atos.net>
1443
1444         * configure.ac: Check for XCOFF32/XCOFF64.  Check for loadquery.
1445         * filetype.awk: Separate AIX XCOFF32 and XCOFF64.
1446         * xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats.
1447         * configure, config.h.in: Regenerate.
1448
1449 2017-07-21  Tony Reix  <tony.reix@atos.net>
1450
1451         * filetype.awk: Add AIX XCOFF type detection.
1452         * configure.ac: Recognize xcoff format.
1453         * Makefile.am (FORMAT_FILES): Add xcoff.c.
1454         * fileline.c: Include <unistd.h>.
1455         (fileline_initialize): Add case for AIX procfs.
1456         * xcoff.c: New file.
1457         * configure, Makefile.in: Rebuild.
1458
1459 2017-06-21  Richard Biener  <rguenther@suse.de>
1460
1461         * configure.ac: Add AC_SYS_LARGEFILE.
1462         * config.h.in: Regenerate.
1463         * configure: Likewise.
1464
1465 2017-06-11  Ian Lance Taylor  <iant@golang.org>
1466
1467         * elf.c (backtrace_initialize): Always set *fileline_fn.
1468         * ttest.c: New file.
1469         * btest.c: Move support functions into testlib.c.  Change calls to
1470         check to pass file name.
1471         * testlib.c: New file, copied from (part of) btest.c.
1472         * testlib.h: New file, declarations for testlib.c.
1473         * edtest.c: Use testlib.h and testlib.c.
1474         * configure.ac: Test for -pthread, set HAVE_PTHREAD conditional.
1475         * Makefile.am (btest_SOURCES): Add testlib.c.
1476         (edtest_SOURCES): Likewise.
1477         (CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD.
1478         (ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define.
1479         * configure, Makefile.in: Rebuild.
1480
1481 2017-05-19  Than McIntosh  <thanm@google.com>
1482
1483         * dwarf.c (free_line_header): Don't free dirs if dirs_count == 0.
1484         (read_line_header): Don't allocate dirs if dirs_count == 0.
1485         * edtest.c: New file.
1486         * edtest2.c: New file.
1487         * Makefile.am (edtest_SOURCES, edtest_LDADD): Define.
1488         (check_PROGRAMS): Add edtest.
1489         (edtest2_build.c, gen_edtest2_build): New targets.
1490         * Makefile.in: Rebuild.
1491
1492 2017-03-08  Sam Thursfield  <sam.thursfield@codethink.co.uk>
1493
1494         * btest.c (test5): Replace #ifdef guard with 'unused' attribute
1495         to fix compile warning when BACKTRACE_SUPPORTED isn't defined.
1496
1497 2017-01-01  Jakub Jelinek  <jakub@redhat.com>
1498
1499         Update copyright years.
1500
1501 2016-11-15  Matthias Klose  <doko@ubuntu.com>
1502
1503         * configure: Regenerate.
1504
1505 2016-09-11  Carlos Liam  <carlos@aarzee.me>
1506
1507         * all: Remove meaningless trailing whitespace.
1508
1509 2016-05-18  Uros Bizjak  <ubizjak@gmail.com>
1510
1511         PR target/71161
1512         * elf.c (phdr_callback) [__i386__]: Add
1513         __attribute__((__force_align_arg_pointer__)).
1514
1515 2016-03-02  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>
1516
1517         * elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
1518         avoid possible crash.
1519         (elf_add): Don't set *fileline_fn to elf_nodebug value in case of
1520         missing debug info anymore.
1521
1522 2016-02-06  John David Anglin  <danglin@gcc.gnu.org>
1523
1524         * mmap.c (MAP_FAILED): Define if not defined.
1525
1526 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
1527
1528         Update copyright years.
1529
1530 2015-12-18  Andris Pavenis  <andris.pavenis@iki.fi>
1531
1532         * configure.ac: Specify that DJGPP do not have mmap
1533         even when sys/mman.h exists.
1534         * configure: Regenerate
1535
1536 2015-12-09  John David Anglin  <danglin@gcc.gnu.org>
1537
1538         PR libgfortran/68115
1539         * configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
1540         * configure: Regenerate.
1541         * elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
1542         to void.
1543
1544 2015-09-17  Ian Lance Taylor  <iant@google.com>
1545
1546         * posix.c (backtrace_open): Cast second argument of open() to int.
1547
1548 2015-09-11  Ian Lance Taylor  <iant@google.com>
1549
1550         * Makefile.am (backtrace.lo): Depend on internal.h.
1551         (sort.lo, stest.lo): Add explicit dependencies.
1552         * Makefile.in: Rebuild.
1553
1554 2015-09-09  Hans-Peter Nilsson  <hp@axis.com>
1555
1556         * backtrace.c: #include <sys/types.h>.
1557
1558 2015-09-08  Ian Lance Taylor  <iant@google.com>
1559
1560         PR other/67457
1561         * backtrace.c: #include "internal.h".
1562         (struct backtrace_data): Add can_alloc field.
1563         (unwind): If can_alloc is false, don't try to get file/line
1564         information.
1565         (backtrace_full): Set can_alloc field in bdata.
1566         * alloc.c (backtrace_alloc): Don't call error_callback if it is
1567         NULL.
1568         * mmap.c (backtrace_alloc): Likewise.
1569         * internal.h: Update comments for backtrace_alloc and
1570         backtrace_free.
1571
1572 2015-09-08  Ian Lance Taylor  <iant@google.com>
1573
1574         PR other/67457
1575         * mmap.c (backtrace_alloc): Correct test for mmap failure.
1576
1577 2015-08-31  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
1578
1579         * configure.ac: For spu-*-* targets, set have_fcntl to no.
1580         * configure: Regenerate.
1581
1582 2015-08-27  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
1583
1584         * configure.ac: Remove [disable-shared] argument to LT_INIT.
1585         Remove setting PIC_FLAG when building as target library.
1586         * configure: Regenerate.
1587
1588 2015-08-26  Hans-Peter Nilsson  <hp@axis.com>
1589
1590         * configure.ac: Only compile with -fPIC if the target
1591         supports it.
1592         * configure: Regenerate.
1593
1594 2015-08-24  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
1595
1596         * configure.ac: Set have_mmap to no on spu-*-* targets.
1597         * configure: Regenerate.
1598
1599 2015-08-13  Ian Lance Taylor  <iant@google.com>
1600
1601         * dwarf.c (read_function_entry): Add vec_inlined parameter.
1602         Change all callers.
1603
1604 2015-06-11  Martin Sebor  <msebor@redhat.com>
1605
1606         PR sanitizer/65479
1607         * dwarf.c (struct line): Add new field idx.
1608         (line_compare): Use it.
1609         (add_line): Set it.
1610         (read_line_info): Reset it.
1611
1612 2015-05-29  Tristan Gingold  <gingold@adacore.com>
1613
1614         * pecoff.c: New file.
1615         * Makefile.am (FORMAT_FILES): Add pecoff.c and dependencies.
1616         * Makefile.in: Regenerate.
1617         * filetype.awk: Detect pecoff.
1618         * configure.ac: Define BACKTRACE_SUPPORTS_DATA on elf platforms.
1619         Add pecoff.
1620         * btest.c (test5): Test enabled only if BACKTRACE_SUPPORTS_DATA is
1621         true.
1622         * backtrace-supported.h.in (BACKTRACE_SUPPORTS_DATA): Define.
1623         * configure: Regenerate.
1624         * pecoff.c: New file.
1625
1626 2015-05-13  Michael Haubenwallner  <michael.haubenwallner@ssi-schaefer.com>
1627
1628         * Makefile.in: Regenerated with automake-1.11.6.
1629         * aclocal.m4: Likewise.
1630         * configure: Likewise.
1631
1632 2015-01-24  Matthias Klose  <doko@ubuntu.com>
1633
1634         * configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC.
1635         * configure: Regenerate.
1636
1637 2015-01-05  Jakub Jelinek  <jakub@redhat.com>
1638
1639         Update copyright years.
1640
1641 2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>
1642
1643         PR bootstrap/63784
1644         * configure: Regenerated.
1645
1646 2014-11-11  David Malcolm  <dmalcolm@redhat.com>
1647
1648         * ChangeLog.jit: New.
1649
1650 2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
1651
1652         PR target/63610
1653         * configure: Regenerate.
1654
1655 2014-10-23  Ian Lance Taylor  <iant@google.com>
1656
1657         * internal.h (backtrace_atomic_load_pointer) [no atomic or sync]:
1658         Fix to return void *.
1659
1660 2014-05-08  Ian Lance Taylor  <iant@google.com>
1661
1662         * mmap.c (backtrace_free): If freeing a large aligned block of
1663         memory, call munmap rather than holding onto it.
1664         (backtrace_vector_grow): When growing a vector, double the number
1665         of pages requested.  When releasing the old version of a grown
1666         vector, pass the correct size to backtrace_free.
1667
1668 2014-03-07  Ian Lance Taylor  <iant@google.com>
1669
1670         * sort.c (backtrace_qsort): Use middle element as pivot.
1671
1672 2014-03-06  Ian Lance Taylor  <iant@google.com>
1673
1674         * sort.c: New file.
1675         * stest.c: New file.
1676         * internal.h (backtrace_qsort): Declare.
1677         * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort.
1678         (read_line_info, read_function_entry): Likewise.
1679         (read_function_info, build_dwarf_data): Likewise.
1680         * elf.c (elf_initialize_syminfo): Likewise.
1681         * Makefile.am (libbacktrace_la_SOURCES): Add sort.c.
1682         (stest_SOURCES, stest_LDADD): Define.
1683         (check_PROGRAMS): Add stest.
1684
1685 2014-02-07  Misty De Meo  <misty@brew.sh>
1686
1687         PR target/58710
1688         * configure.ac: Use AC_LINK_IFELSE in check for
1689         _Unwind_GetIPInfo.
1690         * configure: Regenerate.
1691
1692 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1693
1694         Update copyright years
1695
1696 2013-12-06  Jakub Jelinek  <jakub@redhat.com>
1697
1698         * elf.c (ET_DYN): Undefine and define again.
1699         (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN,
1700         return early -1 without closing the descriptor.
1701         (struct phdr_data): Add exe_descriptor.
1702         (phdr_callback): If pd->exe_descriptor is not -1, for very first
1703         call if dlpi_name is NULL just call elf_add with the exe_descriptor,
1704         otherwise backtrace_close the exe_descriptor if not -1.  Adjust
1705         call to elf_add.
1706         (backtrace_initialize): Adjust call to elf_add.  If it returns
1707         -1, set pd.exe_descriptor to descriptor, otherwise set it to -1.
1708
1709 2013-12-05  Ian Lance Taylor  <iant@google.com>
1710
1711         * alloc.c (backtrace_vector_finish): Add error_callback and data
1712         parameters.  Call backtrace_vector_release.  Return address base.
1713         * mmap.c (backtrace_vector_finish): Add error_callback and data
1714         parameters.  Return address base.
1715         * dwarf.c (read_function_info): Get new address base from
1716         backtrace_vector_finish.
1717         * internal.h (backtrace_vector_finish): Update declaration.
1718
1719 2013-11-27  Ian Lance Taylor  <iant@google.com>
1720
1721         * dwarf.c (find_address_ranges): New static function, broken out
1722         of build_address_map.
1723         (build_address_map): Call it.
1724         * btest.c (check): Check for missing filename or function, rather
1725         than crashing.
1726         (f3): Check that enough frames were returned.
1727
1728 2013-11-19  Jakub Jelinek  <jakub@redhat.com>
1729
1730         * backtrace.h (backtrace_syminfo_callback): Add symsize argument.
1731         * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as
1732         last argument.
1733         * btest.c (struct symdata): Add size field.
1734         (callback_three): Add symsize argument.  Copy it to the data->size
1735         field.
1736         (f23): Set symdata.size to 0.
1737         (test5): Likewise.  If sizeof (int) > 1, lookup address of
1738         ((uintptr_t) &global) + 1.  Verify symdata.val and symdata.size
1739         values.
1740
1741         * atomic.c: Include sys/types.h.
1742
1743 2013-11-18  Ian Lance Taylor  <iant@google.com>
1744
1745         * configure.ac: Check for support of __atomic extensions.
1746         * internal.h: Declare or #define atomic functions for use in
1747         backtrace code.
1748         * atomic.c: New file.
1749         * dwarf.c (dwarf_lookup_pc): Use atomic functions.
1750         (dwarf_fileline, backtrace_dwarf_add): Likewise.
1751         * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise.
1752         (backtrace_initialize): Likewise.
1753         * fileline.c (fileline_initialize): Likewise.
1754         * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c.
1755         * configure, config.h.in, Makefile.in: Rebuild.
1756
1757 2013-11-18  Jakub Jelinek  <jakub@redhat.com>
1758
1759         * elf.c (SHN_UNDEF): Define.
1760         (elf_initialize_syminfo): Add base_address argument.  Ignore symbols
1761         with st_shndx == SHN_UNDEF.  Add base_address to address fields.
1762         (elf_add): Adjust caller.
1763
1764         * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally.
1765
1766 2013-11-16  Ian Lance Taylor  <iant@google.com>
1767
1768         * backtrace.h (backtrace_create_state): Correct comment about
1769         threading.
1770
1771 2013-11-15  Ian Lance Taylor  <iant@google.com>
1772
1773         * backtrace.h (backtrace_syminfo): Update comment and parameter
1774         name to take any address, not just a PC value.
1775         * elf.c (STT_OBJECT): Define.
1776         (elf_nosyms): Rename parameter pc to addr.
1777         (elf_symbol_search): Rename local variable pc to addr.
1778         (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
1779         (elf_syminfo): Rename parameter pc to addr.
1780         * btest.c (global): New global variable.
1781         (test5): New test.
1782         (main): Call test5.
1783
1784 2013-10-17  Ian Lance Taylor  <iant@google.com>
1785
1786         * elf.c (elf_add): Don't get the wrong offsets if a debug section
1787         is missing.
1788
1789 2013-10-15  David Malcolm  <dmalcolm@redhat.com>
1790
1791         * configure.ac: Add --enable-host-shared, setting up
1792         pre-existing PIC_FLAG variable within Makefile.am et al.
1793         * configure: Regenerate.
1794
1795 2013-09-20  Alan Modra  <amodra@gmail.com>
1796
1797         * configure: Regenerate.
1798
1799 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
1800
1801         * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
1802
1803 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
1804
1805         * elf.c (backtrace_initialize): Pass elf_fileline_fn to
1806         dl_iterate_phdr callbacks.
1807
1808 2013-03-25  Ian Lance Taylor  <iant@google.com>
1809
1810         * alloc.c: #include <sys/types.h>.
1811         * mmap.c: Likewise.
1812
1813 2013-01-31  Ian Lance Taylor  <iant@google.com>
1814
1815         * dwarf.c (read_function_info): Permit fvec parameter to be NULL.
1816         (dwarf_lookup_pc): Don't use ddata->fvec if threaded.
1817
1818 2013-01-25  Jakub Jelinek  <jakub@redhat.com>
1819
1820         PR other/56076
1821         * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir
1822         attribute was not seen.
1823
1824 2013-01-16  Ian Lance Taylor  <iant@google.com>
1825
1826         * dwarf.c (struct unit): Add filename and abs_filename fields.
1827         (build_address_map): Set new fields when reading unit.
1828         (dwarf_lookup_pc): If we don't find an entry in the line table,
1829         just return the main file name.
1830
1831 2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>
1832
1833         Update copyright years.
1834
1835 2013-01-01  Ian Lance Taylor  <iant@google.com>
1836
1837         PR bootstrap/54834
1838         * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I
1839         $(MULTIBUILDTOP)/../../gcc/include.
1840         * Makefile.in: Rebuild.
1841
1842 2013-01-01  Ian Lance Taylor  <iant@google.com>
1843
1844         PR other/55536
1845         * mmap.c (backtrace_alloc): Don't call sync functions if not
1846         threaded.
1847         (backtrace_free): Likewise.
1848
1849 2012-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1850
1851         * mmapio.c: Define MAP_FAILED if not defined.
1852
1853 2012-12-11  Jakub Jelinek  <jakub@redhat.com>
1854
1855         PR bootstrap/54926
1856         * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@.
1857         * configure.ac: If --with-target-subdir, add -frandom-seed=$@
1858         to EXTRA_FLAGS unconditionally, otherwise check whether the compiler
1859         accepts it.
1860         * Makefile.in: Regenerated.
1861         * configure: Regenerated.
1862
1863 2012-12-07  Jakub Jelinek  <jakub@redhat.com>
1864
1865         PR bootstrap/54926
1866         * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@.
1867         * Makefile.in: Regenerated.
1868
1869 2012-11-20  Ian Lance Taylor  <iant@google.com>
1870
1871         * dwarf.c (read_attribute): Always clear val.
1872
1873 2012-11-13  Ian Lance Taylor  <iant@google.com>
1874
1875         PR other/55312
1876         * configure.ac: Only add -Werror if building a target library.
1877         * configure: Rebuild.
1878
1879 2012-11-12  Ian Lance Taylor  <iant@google.com>
1880             Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1881             Gerald Pfeifer  <gerald@pfeifer.com>
1882
1883         * configure.ac: Check for getexecname.
1884         * fileline.c: #include <errno.h>.  Define getexecname if not
1885         available.
1886         (fileline_initialize): Try to find the executable in a few
1887         different ways.
1888         * print.c (error_callback): Only print the filename if it came
1889         from the backtrace state.
1890         * configure, config.h.in: Rebuild.
1891
1892 2012-10-29  Ian Lance Taylor  <iant@google.com>
1893
1894         * mmap.c (backtrace_vector_release): Correct last patch: add
1895         aligned, not size.
1896
1897 2012-10-29  Ian Lance Taylor  <iant@google.com>
1898
1899         * mmap.c (backtrace_vector_release): Make sure freed block is
1900         aligned on 8-byte boundary.
1901
1902 2012-10-26  Ian Lance Taylor  <iant@google.com>
1903
1904         PR other/55087
1905         * posix.c (backtrace_open): Add does_not_exist parameter.
1906         * elf.c (phdr_callback): Do not warn if shared library could not
1907         be opened.
1908         * fileline.c (fileline_initialize): Update calls to
1909         backtrace_open.
1910         * internal.h (backtrace_open): Update declaration.
1911
1912 2012-10-26  Jack Howarth  <howarth@bromo.med.uc.edu>
1913
1914         PR target/55061
1915         * configure.ac: Check for _Unwind_GetIPInfo function declaration.
1916         * configure: Regenerate.
1917
1918 2012-10-24  Ian Lance Taylor  <iant@google.com>
1919
1920         PR target/55061
1921         * configure.ac: Check whether -funwind-tables option works.
1922         * configure: Rebuild.
1923
1924 2012-10-11  Ian Lance Taylor  <iant@google.com>
1925
1926         * configure.ac: Do not use dl_iterate_phdr on Solaris 10.
1927         * configure: Rebuild.
1928
1929 2012-10-10  Ian Lance Taylor  <iant@google.com>
1930
1931         * elf.c: Rename all Elf typedefs to start with b_elf, and be all
1932         lower case.
1933
1934 2012-10-10  Hans-Peter Nilsson  <hp@bitrange.com>
1935
1936         * elf.c (elf_add_syminfo_data): Add casts to avoid warning.
1937
1938 2012-10-09  Ian Lance Taylor  <iant@google.com>
1939
1940         * dwarf.c (dwarf_fileline): Add cast to avoid warning.
1941         (backtrace_dwarf_add): Likewise.
1942
1943 2012-10-09  Ian Lance Taylor  <iant@google.com>
1944
1945         Add support for tracing through shared libraries.
1946         * configure.ac: Check for link.h and dl_iterate_phdr.
1947         * elf.c: #include <link.h> if system has dl_iterate_phdr.  #undef
1948         ELF macros before #defining them.
1949         (dl_phdr_info, dl_iterate_phdr): Define if system does not have
1950         dl_iterate_phdr.
1951         (struct elf_syminfo_data): Add next field.
1952         (elf_initialize_syminfo): Initialize next field.
1953         (elf_add_syminfo_data): New static function.
1954         (elf_add): New static function, broken out of
1955         backtrace_initialize.  Call backtrace_dwarf_add instead of
1956         backtrace_dwarf_initialize.
1957         (struct phdr_data): Define.
1958         (phdr_callback): New static function.
1959         (backtrace_initialize): Call elf_add.
1960         * dwarf.c (struct dwarf_data): Add next and base_address fields.
1961         (add_unit_addr): Add base_address parameter.  Change all callers.
1962         (add_unit_ranges, build_address_map): Likewise.
1963         (add_line): Add ddata parameter.  Change all callers.
1964         (read_line_program, add_function_range): Likewise.
1965         (dwarf_lookup_pc): New static function, broken out of
1966         dwarf_fileline.
1967         (dwarf_fileline): Call dwarf_lookup_pc.
1968         (build_dwarf_data): New static function.
1969         (backtrace_dwarf_add): New function.
1970         (backtrace_dwarf_initialize): Remove.
1971         * internal.h (backtrace_dwarf_initialize): Don't declare.
1972         (backtrace_dwarf_add): Declare.
1973         * configure, config.h.in: Rebuild.
1974
1975 2012-10-04  Gerald Pfeifer  <gerald@pfeifer.com>
1976
1977         * btest.c (f23): Avoid uninitialized variable warning.
1978
1979 2012-10-04  Ian Lance Taylor  <iant@google.com>
1980
1981         * dwarf.c: If the system header files do not declare strnlen,
1982         provide our own version.
1983
1984 2012-10-03  Ian Lance Taylor  <iant@google.com>
1985
1986         * dwarf.c (read_uleb128): Fix overflow test.
1987         (read_sleb128): Likewise.
1988         (build_address_map): Don't change unit_buf.start.
1989
1990 2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
1991
1992         PR other/54761
1993         * configure.ac (EXTRA_FLAGS): New.
1994         * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
1995         * configure, Makefile.in: Regenerate.
1996
1997 2012-09-29  Ian Lance Taylor  <iant@google.com>
1998
1999         PR other/54749
2000         * fileline.c (fileline_initialize): Pass errnum as -1 when
2001         reporting that we could not read executable information after a
2002         previous failure.
2003
2004 2012-09-27  Ian Lance Taylor  <iant@google.com>
2005
2006         PR bootstrap/54732
2007         * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE.
2008         * Makefile.am: Add dependencies for all objects.
2009         * configure, aclocal.m4, Makefile.in: Rebuild.
2010
2011 2012-09-27  Ian Lance Taylor  <iant@google.com>
2012
2013         PR other/54726
2014         * elf.c (backtrace_initialize): Set *fileln_fn, not
2015         state->fileln_fn.
2016
2017 2012-09-19  Ian Lance Taylor  <iant@google.com>
2018
2019         * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled
2020         as a target library.
2021         * configure: Rebuild.
2022
2023 2012-09-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2024             Ian Lance Taylor  <iant@google.com>
2025
2026         * configure.ac (GCC_HEADER_STDINT): Invoke.
2027         * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
2028         * btest.c: Don't include <stdint.h>.
2029         * dwarf.c: Likewise.
2030         * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.
2031
2032 2012-09-18  Ian Lance Taylor  <iant@google.com>
2033
2034         PR bootstrap/54623
2035         * Makefile.am (AM_CPPFLAGS): Define.
2036         (AM_CFLAGS): Remove -I options.
2037         * Makefile.in: Rebuild.
2038
2039 2012-09-18  Ian Lance Taylor  <iant@google.com>
2040
2041         * posix.c (O_BINARY): Define if not defined.
2042         (backtrace_open): Pass O_BINARY to open.  Only call fcntl if
2043         HAVE_FCNTL is defined.
2044         * configure.ac: Test for the fcntl function.
2045         * configure, config.h.in: Rebuild.
2046
2047 2012-09-18  Ian Lance Taylor  <iant@google.com>
2048
2049         * btest.c (test1, test2, test3, test4): Add the unused attribute.
2050
2051 2012-09-18  Ian Lance Taylor  <iant@google.com>
2052
2053         * dwarf.c: Correct test of HAVE_DECL_STRNLEN.
2054
2055 2012-09-18  Ian Lance Taylor  <iant@google.com>
2056
2057         * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS.
2058         * mmapio.c: Don't define _GNU_SOURCE.
2059         * configure, config.h.in: Rebuild.
2060
2061 2012-09-18  Ian Lance Taylor  <iant@google.com>
2062
2063         * configure.ac: Check whether strnlen is declared.
2064         * dwarf.c: Declare strnlen if not declared.
2065         * configure, config.h.in: Rebuild.
2066
2067 2012-09-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2068
2069         * fileline.c: Include <stdlib.h>.
2070         * mmap.c: Likewise.
2071
2072 2012-09-17  Ian Lance Taylor  <iant@google.com>
2073
2074         PR bootstrap/54611
2075         * nounwind.c (backtrace_full): Rename from backtrace.  Add state
2076         parameter.
2077
2078 2012-09-17  Gerald Pfeifer  <gerald@pfeifer.com>
2079
2080         PR bootstrap/54611
2081         * nounwind.c (backtrace_simple): Add state parameter.
2082
2083 2012-09-17  Ian Lance Taylor  <iant@google.com>
2084
2085         PR bootstrap/54609
2086         * unknown.c (unknown_fileline): Add state parameter, remove
2087         fileline_data parameter, name error_callback parameter.
2088         (backtrace_initialize): Add state parameter.
2089
2090 2012-09-17  Ian Lance Taylor  <iant@google.com>
2091
2092         * Initial implementation.
2093 \f
2094 Copyright (C) 2012-2024 Free Software Foundation, Inc.
2095
2096 Copying and distribution of this file, with or without modification,
2097 are permitted in any medium without royalty provided the copyright
2098 notice and this notice are preserved.