libbacktrace/ChangeLog

   1 2020-07-08  Ian Lance Taylor  <iant@golang.org>
   2
   3         * configure.ac: Test linker support for DWARF5
   4         * configure: Regenerate
   5
   6 2020-05-29  H.J. Lu  <hjl.tools@gmail.com>
   7
   8         PR bootstrap/95413
   9         * configure: Regenerated.
  10
  11 2020-05-15  H.J. Lu  <hongjiu.lu@intel.com>
  12
  13         PR bootstrap/95147
  14         * configure: Regenerated.
  15
  16 2020-05-14  H.J. Lu  <hongjiu.lu@intel.com>
  17
  18         * configure: Regenerated.
  19
  20 2020-05-13  Ian Lance Taylor  <iant@golang.org>
  21
  22         * ztest.c (test_large): Mark state ATTRIBUTE_UNUSED.
  23
  24 2020-05-13  Ian Lance Taylor  <iant@golang.org>
  25
  26         PR go/95061
  27         * posix.c (backtrace_open): Treat EACCESS like ENOENT.
  28
  29 2020-05-12  H.J. Lu  <hongjiu.lu@intel.com>
  30
  31         * Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
  32         * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
  33         AC_SUBST(CET_HOST_FLAGS).  Clear CET_HOST_FLAGS if jit isn't
  34         enabled.
  35         * Makefile.in: Regenerated.
  36         * configure: Likewise.
  37
  38 2020-05-11  Ian Lance Taylor  <iant@golang.org>
  39
  40         PR libbacktrace/95012
  41         * configure.ac: Check for getpagesize declaration.
  42         * mmap.c: Declare getpagesize if necessary.
  43         * mmapio.c: Likewise.
  44         * configure: Regenerate.
  45         * config.h.in: Regenerate.
  46         * Makefile.in: Regenerate.
  47
  48 2020-05-09  Roland McGrath  <mcgrathr@google.com>
  49
  50         * elf.c (elf_add): Bail early if there are no section headers at all.
  51
  52 2020-05-09  Ian Lance Taylor  <iant@golang.org>
  53
  54         * elf.c (elf_add): Don't free strtab if an error occurs after
  55         recording symbol information.
  56
  57 2020-05-09  Ian Lance Taylor  <iant@golang.org>
  58
  59         PR libbacktrace/88745
  60         * macho.c: New file.
  61         * filetype.awk: Recognize Mach-O files.
  62         * Makefile.am (FORMAT_FILES): Add macho.c.
  63         (check_DATA): New variable.  Set to .dSYM if HAVE_DSYMUTIL.
  64         (%.dSYM): New pattern target.
  65         (test_macho_SOURCES, test_macho_CFLAGS): New targets.
  66         (test_macho_LDADD): New target.
  67         (BUILDTESTS): Add test_macho.
  68         (macho.lo): Add dependencies.
  69         * configure.ac: Recognize macho file type.  Check for
  70         mach-o/dyld.h.  Don't try to run objcopy if we don't find it.
  71         Look for dsymutil and define a HAVE_DSYMUTIL conditional.
  72         * Makefile.in: Regenerate.
  73         * configure: Regenerate.
  74         * config.h.in: Regenerate.
  75
  76 2020-05-09  Ian Lance Taylor  <iant@golang.org>
  77
  78         * read.c (backtrace_get_view): Support short read.
  79
  80 2020-05-09  Ian Lance Taylor  <iant@golang.org>
  81
  82         * elf.c (elf_add): If debug sections are very large or far apart,
  83         read them individually rather than as a single view.
  84
  85 2020-05-08  Ian Lance Taylor  <iant@golang.org>
  86
  87         * fileline.c (sysctl_exec_name): New static function.
  88         (sysctl_exec_name1): New macro or static function.
  89         (sysctl_exec_name2): Likewise.
  90         (fileline_initialize): Try sysctl_exec_name[12].
  91         * configure.ac: Check for sysctl args to fetch executable name.
  92         * configure: Regenerate.
  93         * config.h.in: Regenerate.
  94
  95 2020-02-15  Ian Lance Taylor  <iant@golang.org>
  96
  97         * ztest.c (test_large): Update file to current libgo test file.
  98
  99 2020-02-03  Ian Lance Taylor  <iant@golang.org>
 100
 101         * Makefile.am (libbacktrace_TEST_CFLAGS): Define.
 102         (test_elf32_CFLAGS): Use $(libbacktrace_test_CFLAGS).
 103         (test_elf_64_CFLAGS, test_xcoff_32_CFLAGS): Likewise.
 104         (test_xcoff_64_CFLAGS, test_pecoff_CFLAGS): Likewise.
 105         (test_unknown_CFLAGS, unittest_CFLAGS): Likewise.
 106         (unittest_alloc_CFLAGS, allocfail_CFLAGS): Likewise.
 107         (b2test_CFLAGS, b3test_CFLAGS, btest_CFLAGS): Likewise.
 108         (btest_lto_CFLAGS, btest_alloc_CFLAGS, stest_CFLAGS): Likewise.
 109         (stest_alloc_CFLAGS): Likewise.
 110         * Makefile.in: Regenerate.
 111         * ztest.c (error_callback_compress): Mark vdata unused.
 112         (test_large): Add casts to avoid warnings.
 113
 114 2020-01-01  Jakub Jelinek  <jakub@redhat.com>
 115
 116         Update copyright years.
 117
 118 2019-12-13  Ian Lance Taylor  <iant@golang.org>
 119
 120         Add DWARF 5 support.
 121         * dwarf.c (struct attr): Add val field.
 122         (enum attr_val_encoding): Add ATTR_VAL_ADDDRESS_INDEX,
 123         ATTR_VAL_STRING_INDEX, ATTR_VAL_RNGLISTS_INDEX.
 124         (struct line_header): Add addrsize field.
 125         (struct line_header_format): Define.
 126         (struct unit): Add str_offsets_base, addr_base, and rnglists_base
 127         fields.
 128         (read_uint24): New static function.
 129         (read_attribute): Add implicit_val parameter.  Replace dwarf_str
 130         and dwarf_str_size parameters with dwarf_sections parameter.  Add
 131         support for new DWARF 5 forms.  Change all callers.
 132         (resolve_string): New static function.
 133         (resolve_addr_index): Likewise.
 134         (read_abbrevs): Support DW_FORM_implicit_const.
 135         (struct pcrange): Add lowpc_is_addr_index, highpc_is_addr_Index,
 136         and ranges_is_index fields.
 137         (update_pcrange): Support DWARF 5 encodings.
 138         (add_high_low_range): New static function, split out of
 139         add_ranges.
 140         (add_ranges_from_ranges): Likewise.
 141         (add_ranges_from_rnglists): New static function.
 142         (add_ranges): Just call new helper functions.
 143         (find_address_ranges): Use resolve_string for strings, after
 144         reading all attributes.  Handle new DWARF 5 attributes.
 145         (build_address_map): Support DWARF 5 compilation units.
 146         (read_v2_paths): New static function, split out of
 147         read_line_header.
 148         (read_lnct): New static function.
 149         (read_line_header_format_entries): Likewise.
 150         (read_line_header): Add ddata parameter.  Support DWARF 5 line
 151         headers.  Call new helper functions.  Change all callers.
 152         (read_line_program): Use addrsize from line program header.  Don't
 153         special case directory index 0 for DWARF 5.
 154         (read_referenced_name): Use resolve_string.
 155         (read_function_entry): Handle DWARF 5 encodings.  Use
 156         resolve_string.
 157         * internal.h (enum dwarf_section): Add DEBUG_ADDR,
 158         DEBUG_STR_OFFSETS, DEBUG_LINE_STR, DEBUG_RNGLISTS.
 159         * elf.c (dwarf_section_names): Add new section names.
 160         * pecoff.c (dwarf_section_names): Likewise.
 161         * xcoff.c (xcoff_add): Clear dwarf_sections before setting
 162         fields.
 163         * configure.ac: Define HAVE_DWARF5 automake conditional.
 164         * Makefile.am (dwarf5_SOURCES): New variable if HAVE_DWARF5.
 165         (dwarf5_CFLAGS, dwarf5_LDADD): Likewise.
 166         (dwarf5_alloc_SOURCES, dwarf5_alloc_CFLAGS): Likewise.
 167         (dwarf5_alloc_LDADD): Likewise.
 168         (BUILDTESTS): Add dwarf5 tests if HAVE_DWARF5.
 169         (CLEANFILES, clean-local): Define.
 170
 171 2019-12-08  Ian Lance Taylor  <iant@golang.org>
 172
 173         * dwarf.c (struct pcrange): Define.
 174         (update_pcrange, add_ranges): New static functions.
 175         (add_unit_addr): Change signature to work with add_ranges.  Don't
 176         add base_address here.
 177         (add_unit_ranges): Remove.
 178         (find_address_ranges): Replace str/ranges parameters with
 179         dwarf_sections.  Use update_pcrange and add_ranges.  Change all
 180         callers.
 181         (add_function_range): Change signature to work with add_ranges.
 182         Don't add base_address here.
 183         (add_function_ranges): Remove.
 184         (read_function_entry): Use update_pcrange and add_ranges.
 185
 186 2019-12-04  Ian Lance Taylor  <iant@golang.org>
 187
 188         * edtest.c (test1): Add noclone attribute.
 189
 190 2019-12-04  Ian Lance Taylor  <iant@golang.org>
 191
 192         * internal.h (enum dwarf_section): Define.
 193         (struct dwarf_sections): Define.
 194         (backtrace_dwarf_add): Update declaration to replace specific
 195         section parameters with dwarf_sections parameter.
 196         * dwarf.c (struct dwarf_data): Replace specific section fields
 197         with dwarf_sections field.
 198         (read_attribute): Use dwarf_sections with altlink.
 199         (build_address_map): Replace specific section parameters with
 200         dwarf_sections parameter.  Change all callers.
 201         (read_line_info): Use dwarf_sections with ddata.
 202         (read_referenced_name): Likewise.
 203         (add_function_ranges): Likewise.
 204         (read_function_entry): Likewise.
 205         (read_function_info): Likewise.
 206         (build_dwarf_data): Replace specific section parameters with
 207         dwarf_sections parameter.  Change all callers.
 208         (backtrace_dwarf_add): Likewise.
 209         * elf.c (enum debug_section): Remove.
 210         (dwarf_section_names): Remove .zdebug names.
 211         (elf_add): Track zsections separately.  Build dwarf_sections.
 212         * pecoff.c (enum debug_section): Remove.
 213         (struct debug_section_info): Remove data field.
 214         (coff_add): Build dwarf_sections.
 215         * xcoff.c (enum dwarf_section): Remove.  Replace DWSECT_xxx
 216         references with DEBUG_xxx references.
 217         (xcoff_add): Build dwarf_sections.
 218
 219 2019-09-27  Maciej W. Rozycki  <macro@wdc.com>
 220
 221         * configure: Regenerate.
 222
 223 2019-09-26  Ian Lance Taylor  <iant@golang.org>
 224
 225         PR libbacktrace/91908
 226         * pecoff.c (backtrace_initialize): Explicitly cast unchecked
 227         __sync_bool_compare_and_swap to void.
 228         * xcoff.c (backtrace_initialize): Likewise.
 229
 230 2019-09-03  Ulrich Weigand  <uweigand@de.ibm.com>
 231
 232         * configure.ac: Remove references to spu.
 233         * configure: Regenerate.
 234
 235 2019-05-24  Clement Chigot  <clement.chigot@atos.net>
 236
 237         * Makefile.am (BUILDTESTS): Remove test_elf, add test_elf_32 and
 238         test_elf_64.
 239         * Makefile.in: Regenerate.
 240
 241 2019-05-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 242
 243         * configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
 244         handling.
 245         * configure: Regenerate.
 246
 247 2019-03-11  Ian Lance Taylor  <iant@golang.org>
 248
 249         PR libbacktrace/89669
 250         * Makefile.am (BUILDTESTS): Only add ztest and ztest_alloc if
 251         HAVE_ELF.
 252         * Makefile.in: Regenerate.
 253
 254 2019-02-26  Tom de Vries  <tdevries@suse.de>
 255
 256         * btest.c (test5): Allow global.* as minimal symbol name for global.
 257
 258 2019-02-26  Tom de Vries  <tdevries@suse.de>
 259
 260         * Makefile.am (TESTS): Only add b3test_dwz_buildid if HAVE_DWZ.
 261         * Makefile.in: Regenerate.
 262
 263 2019-02-12  Tom de Vries  <tdevries@suse.de>
 264
 265         PR libbacktrace/81983
 266         * dwarf.c (dwarf_lookup_pc): Don't call bsearch if nmemb == 0.
 267
 268 2019-02-10  Tom de Vries  <tdevries@suse.de>
 269
 270         * Makefile.am (BUILDTESTS): Add btest_lto.
 271         * Makefile.in: Regenerate.
 272         * btest.c (test1, f2, f3, test3, f22, f23): Declare with
 273         __attribute__((noclone)).
 274
 275 2019-02-08  Tom de Vries  <tdevries@suse.de>
 276
 277         * backtrace.c (backtrace_full): Declare with __attribute__((noinline)).
 278         * print.c (backtrace_print): Same.
 279         * simple.c (backtrace_simple): Same.
 280
 281 2019-02-08  Tom de Vries  <tdevries@suse.de>
 282
 283         PR libbacktrace/78063
 284         * dwarf.c (build_address_map): Keep all parsed units.
 285         (read_referenced_name_from_attr): Handle DW_FORM_ref_addr.
 286
 287 2019-01-31  Tom de Vries  <tdevries@suse.de>
 288
 289         PR libbacktrace/89136
 290         * elf.c (elf_add): Read build-id if with_buildid_data.  Fix
 291         'debugaltlink_name_len =+ 1'.
 292
 293 2019-01-29  Tom de Vries  <tdevries@suse.de>
 294
 295         * install-debuginfo-for-buildid.sh.in: New script.
 296         * Makefile.am (check_PROGRAMS): Add b2test and b3test.
 297         (TESTS): Add b2test_buildid and b3test_dwz_buildid.
 298         * Makefile.in: Regenerate.
 299         * configure.ac (HAVE_ELF): Set with AM_CONDITIONAL.
 300         (READELF): Set with AC_CHECK_PROG.
 301         (install-debuginfo-for-buildid.sh): Generate with AC_CONFIG_FILES.
 302         * configure: Regenerate.
 303         * elf.c (SYSTEM_BUILD_ID_DIR): Factor out of ...
 304         (elf_open_debugfile_by_buildid): ... here.
 305
 306 2019-01-29  Tom de Vries  <tdevries@suse.de>
 307
 308         * Makefile.am: Replace check_PROGRAMS with BUILDTESTS, except for
 309         allocfail.
 310         (TESTS): Don't add check_PROGRAMS. Add BUILDTESTS.
 311         (check_PROGRAMS): Add BUILDTESTS.
 312         * Makefile.in: Regenerate.
 313
 314 2019-01-28  Tom de Vries  <tdevries@suse.de>
 315
 316         * Makefile.am (xcoff_%.c): Generate sed result into temporary file.
 317         Use $< to access prerequisite.
 318         * Makefile.in: Regenerate.
 319
 320 2019-01-25  Nathan Sidwell  <nathan@acm.org>
 321
 322         * elf.c (elf_add): Pass "" filename to recursive call with
 323         separated debug.
 324
 325 2019-01-25  Tom de Vries  <tdevries@suse.de>
 326
 327         * elf.c (elf_add): When handling .gnu_debugaltlink, call elf_add with
 328         filename == "".
 329         * Makefile.am (TESTS): Add btest_dwz_gnudebuglink.
 330         * Makefile.in: Regenerate.
 331
 332 2019-01-25  Tom de Vries  <tdevries@suse.de>
 333
 334         * Makefile.am: Rewrite dtest rule into "%_gnudebuglink" pattern rule.
 335         (TESTS): Rename dtest to btest_gnudebuglink.
 336         * Makefile.in: Regenerate.
 337
 338 2019-01-23  Tom de Vries  <tdevries@suse.de>
 339
 340         * dwarf.c (struct unit): Use size_t for low_offset/high_offset fields.
 341         (units_search, find_unit): Use size_t for offset.
 342         (build_address_map): Use size_t for unit_offset.
 343
 344 2019-01-20  Gerald Pfeifer  <gerald@pfeifer.com>
 345
 346         * allocfail.c (main): Increase portability of printf statement.
 347
 348 2019-01-18  Ian Lance Taylor  <iant@golang.org>
 349
 350         PR libbacktrace/88890
 351         * mmapio.c (backtrace_get_view): Change size parameter to
 352         uint64_t.  Check that value fits in size_t.
 353         * read.c (backtrace_get_view): Likewise.
 354         * internal.h (backtrace_get_view): Update declaration.
 355         * elf.c (elf_add): Pass shstrhdr->sh_size to backtrace_get_view.
 356
 357 2019-01-17  Tom de Vries  <tdevries@suse.de>
 358
 359         PR libbacktrace/82857
 360         * configure.ac (DWZ): Set with AC_CHECK_PROG.
 361         (HAVE_DWZ): Set with AM_CONDITIONAL.
 362         * configure: Regenerate.
 363         * Makefile.am (TESTS): Add btest_dwz.
 364         * Makefile.in: Regenerate.
 365
 366 2019-01-17  Tom de Vries  <tdevries@suse.de>
 367
 368         PR libbacktrace/82857
 369         * dwarf.c (enum attr_val_encoding): Add ATTR_VAL_REF_ALT_INFO.
 370         (read_attribute): Handle DW_FORM_GNU_ref_alt using
 371         ATTR_VAL_REF_ALT_INFO.
 372         (read_referenced_name_from_attr): Handle DW_FORM_GNU_ref_alt.
 373
 374 2019-01-17  Tom de Vries  <tdevries@suse.de>
 375
 376         * dwarf.c (struct unit): Add low_offset and high_offset fields.
 377         (struct unit_vector): New type.
 378         (struct dwarf_data): Add units and units_counts fields.
 379         (find_unit): New function.
 380         (find_address_ranges): Add and handle unit_tag parameter.
 381         (build_address_map): Add and handle units_vec parameter.
 382         (build_dwarf_data): Pass units_vec to build_address_map.  Store resulting
 383         units vector.
 384
 385 2019-01-17  Tom de Vries  <tdevries@suse.de>
 386
 387         PR libbacktrace/82857
 388         * dwarf.c (read_attribute): Handle DW_FORM_GNU_strp_alt
 389         using altlink.
 390
 391 2019-01-17  Tom de Vries  <tdevries@suse.de>
 392
 393         * dwarf.c (enum attr_val_encoding): Add ATTR_VAL_NONE.
 394         (read_attribute): Add altlink parameter.  Handle missing altlink for
 395         DW_FORM_GNU_strp_alt and DW_FORM_GNU_ref_alt.
 396         (find_address_ranges, build_address_map, build_dwarf_data): Add and
 397         handle altlink parameter.
 398         (read_referenced_name, read_function_entry): Add argument to
 399         read_attribute call.
 400
 401 2019-01-17  Tom de Vries  <tdevries@suse.de>
 402
 403         * dwarf.c (struct dwarf_data): Add altlink field.
 404         (backtrace_dwarf_add): Add and handle fileline_altlink parameter.
 405         * elf.c (elf_add): Add argument to backtrace_dwarf_add call.
 406         (phdr_callback, backtrace_initialize): Add argument to elf_add calls.
 407         * internal.h (backtrace_dwarf_add): Add fileline_altlink parameter.
 408         * pecoff.c (coff_add): Add argument to backtrace_dwarf_add call.
 409         * xcoff.c (xcoff_add): Same.
 410
 411 2019-01-17  Tom de Vries  <tdevries@suse.de>
 412
 413         * internal.h (backtrace_dwarf_add): Add fileline_entry parameter.
 414         * dwarf.c (backtrace_dwarf_add): Add and handle fileline_entry parameter.
 415         * elf.c (elf_add): Add and handle fileline_entry parameter.  Add
 416         argument to backtrace_dwarf_add call.
 417         (phdr_callback, backtrace_initialize): Add argument to elf_add calls.
 418         * pecoff.c (coff_add): Add argument to backtrace_dwarf_add call.
 419         * xcoff.c (xcoff_add): Same.
 420
 421 2019-01-17  Tom de Vries  <tdevries@suse.de>
 422
 423         * elf.c (elf_add): Add and handle with_buildid_data and
 424         with_buildid_size parameters.  Handle .gnu_debugaltlink section.
 425         (phdr_callback, backtrace_initialize): Add arguments to elf_add calls.
 426
 427 2019-01-16  Tom de Vries  <tdevries@suse.de>
 428
 429         * dwarf.c (read_referenced_name_from_attr): New function.  Factor out
 430         of ...
 431         (read_referenced_name): ... here, and ...
 432         (read_function_entry): ... here.
 433
 434 2019-01-16  Tom de Vries  <tdevries@suse.de>
 435
 436         * dwarf.c (read_referenced_name): Don't allow DW_AT_name to override any
 437         name.
 438         (read_function_entry): Same.  Don't allow name found via
 439         DW_AT_abstract_origin or case DW_AT_specification to override linkage
 440         name.
 441
 442 2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>
 443
 444         PR other/16615
 445
 446         * backtrace.h: Mechanically replace "can not" with "cannot".
 447
 448 2019-01-01  Jakub Jelinek  <jakub@redhat.com>
 449
 450         Update copyright years.
 451
 452 2018-12-29  Gerald Pfeifer  <gerald@pfeifer.com>
 453
 454         * Makefile.am (xcoff_%.c): Use an actual newline instead of \n
 455         in sed pattern.
 456         * Makefile.in: Regenerate.
 457
 458 2018-12-28  Tom de Vries  <tdevries@suse.de>
 459
 460         * dwarf.c (build_address_map): Reuse unused units.
 461
 462 2018-12-28  Tom de Vries  <tdevries@suse.de>
 463
 464         * dwarf.c (build_address_map): Simplify by removing local variable
 465         abbrevs.
 466
 467 2018-12-28  Ian Lance Taylor  <iant@golang.org>
 468             Tom de Vries  <tdevries@suse.de>
 469
 470         PR libbacktrace/88063
 471         * dwarf.c (free_unit_addrs_vector): Remove.
 472         (build_address_map): Keep track of allocated units in vector.  Free
 473         allocated units and corresponding abbrevs upon failure.  Remove now
 474         redundant call to free_unit_addrs_vector.  Free addrs vector upon
 475         failure.  Free allocated unit vector.
 476
 477 2018-12-28  Tom de Vries  <tdevries@suse.de>
 478
 479         * dwarf.c (build_address_map): Free addrs vector upon failure.
 480
 481 2018-12-14  Tom de Vries  <tdevries@suse.de>
 482
 483         PR testsuite/88491
 484         * allocfail.sh: Remove "set -o pipefail".
 485
 486 2018-12-12  Tom de Vries  <tdevries@suse.de>
 487
 488         * Makefile.am (TESTS): Add allocfail.sh.
 489         (check_PROGRAMS): Add allocfail.
 490         * Makefile.in: Regenerate.
 491         * instrumented_alloc.c: New file.  Redefine malloc and realloc.
 492         Include alloc.c.
 493         * allocfail.c: New file.
 494         * allocfail.sh: New file.
 495
 496 2018-11-30  Tom de Vries  <tdevries@suse.de>
 497
 498         * Makefile.am (check_PROGRAMS): Add test_elf, test_xcoff_32,
 499         test_xcoff_64, test_pecoff and test_unknown.
 500         * Makefile.in: Regenerate.
 501         * test_format.c: New file.
 502
 503 2018-11-30  Tom de Vries  <tdevries@suse.de>
 504
 505         * Makefile.am : Add _with_alloc version for each test in
 506         check_PROGRAMS.
 507         * Makefile.in: Regenerate.
 508
 509 2018-11-30  Tom de Vries  <tdevries@suse.de>
 510
 511         * internal.h (backtrace_vector_free): New static inline fuction,
 512         factored out of ...
 513         * dwarf.c (read_line_info): ... here.
 514
 515 2018-11-28  Tom de Vries  <tdevries@suse.de>
 516
 517         * dwarf.c (read_abbrevs): Fix handling of abbrevs->abbrevs allocation
 518         failure.
 519
 520 2018-11-27  Tom de Vries  <tdevries@suse.de>
 521
 522         * mmap.c (backtrace_vector_release): Same.
 523         * unittest.c (test1): Add check.
 524
 525 2018-11-27  Tom de Vries  <tdevries@suse.de>
 526
 527         * alloc.c (backtrace_vector_release): Handle vec->size == 0 using free
 528         instead of realloc.
 529         * Makefile.am (check_PROGRAMS): Add unittest.
 530         * Makefile.in: Regenerate.
 531         * unittest.c: New file.
 532
 533 2018-11-22  Tom de Vries  <tdevries@suse.de>
 534
 535         * dwarf.c (read_initial_length): Factor out of ...
 536         (build_address_map, read_line_info): ... here.
 537
 538 2018-11-21  Tom de Vries  <tdevries@suse.de>
 539
 540         * dwarf.c (read_string): Factor out of ...
 541         (read_attribute, read_line_header, read_line_program): ... here.
 542
 543 2018-10-31  Joseph Myers  <joseph@codesourcery.com>
 544
 545         PR bootstrap/82856
 546         * Makefile.am: Include multilib.am.
 547         * configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
 548         * Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
 549
 550 2018-10-05  Ian Lance Taylor  <iant@golang.org>
 551
 552         PR libbacktrace/87529
 553         * backtrace.h: Document that backtrace_create_state should be
 554         called only once.
 555
 556 2018-08-05 Iain Buclaw  <ibuclaw@gdcproject.org>
 557
 558         * configure.ac: Move define of HAVE_ZLIB into check for -lz.
 559         * Makefile.in: Regenerate.
 560         * config.h.in: Likewise.
 561         * configure: Likewise.
 562
 563 2018-08-01  Tony Reix  <tony.reix@atos.net>
 564
 565         * xcoff.c (struct xcoff_line, struct xcoff_line_vector): Remove.
 566         (struct xcoff_func, struct xcoff_func_vector): New structs.
 567         (xcoff_syminfo): Drop leading dot from symbol name.
 568         (xcoff_line_compare, xcoff_line_search): Remove.
 569         (xcoff_func_compare, xcoff_func_search): New static functions.
 570         (xcoff_lookup_pc): Search function table.
 571         (xcoff_add_line, xcoff_process_linenos): Remove.
 572         (xcoff_initialize_fileline): Build function table.
 573
 574 2018-06-21 Denis Khalikov <d.khalikov@partner.samsung.com>
 575
 576         PR other/86198
 577         * elf.c (elf_add): Increase ".note.gnu.build-id" section size
 578         checking up to 36 bytes.
 579
 580 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 581
 582         * configure: Regenerated.
 583
 584 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 585
 586         * configure: Regenerated.
 587
 588 2018-04-17  Ian Lance Taylor  <iant@golang.org>
 589
 590         * backtrace.c: Revert last two changes.  Don't call mmap
 591         directly.
 592
 593 2018-04-17  Ian Lance Taylor  <iant@golang.org>
 594
 595         * backtrace.c: Include backtrace-supported.h before checking
 596         BACKTRACE_USES_MALLOC.
 597
 598 2018-04-17  Ian Lance Taylor  <iant@golang.org>
 599
 600         * backtrace.c (backtrace_full): When testing whether we can
 601         allocate memory, call mmap directly, and munmap the memory.
 602
 603 2018-04-04  Jakub Jelinek  <jakub@redhat.com>
 604
 605         PR other/85161
 606         * elf.c (elf_zlib_fetch): Fix up predefined macro names in test for
 607         big endian, only use 32-bit loads if endianity macros are predefined
 608         and indicate big or little endian.
 609
 610 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 611
 612         PR target/84148
 613         * configure: Regenerate.
 614
 615 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
 616
 617         PR other/82368
 618         * elf.c (SHT_PROGBITS): Undefine and define.
 619
 620 2018-02-14  Jakub Jelinek  <jakub@redhat.com>
 621
 622         PR other/82368
 623         * elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define.
 624         (struct elf_ppc64_opd_data): New type.
 625         (elf_initialize_syminfo): Add opd argument, handle symbols
 626         pointing into the PowerPC64 ELFv1 .opd section.
 627         (elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer
 628         to structure with .opd data to elf_initialize_syminfo.
 629
 630 2018-01-31  Ian Lance Taylor  <iant@golang.org>
 631
 632         * elf.c (elf_add): Close descriptor if we use a debugfile.
 633         * btest.c (check_open_files): New static function.
 634         (main): Call check_open_files.
 635
 636 2018-01-25  Ian Lance Taylor  <iant@golang.org>
 637
 638         * elf.c (elf_open_debugfile_by_debuglink): Don't check CRC if the
 639         desired CRC is zero.
 640         (elf_add): Don't clear *found_sym and *found_dwarf if debuginfo.
 641
 642 2018-01-25  Ian Lance Taylor  <iant@golang.org>
 643
 644         * pecoff.c (coff_add): Only release syms_view if it is valid.
 645
 646 2018-01-25  Ian Lance Taylor  <iant@golang.org>
 647
 648         * pecoff.c (coff_add): Another memcpy -> coff_read4 fix.
 649
 650 2018-01-24  Ian Lance Taylor  <iant@golang.org>
 651
 652         * pecoff.c (coff_add): Use coff_read4, not memcpy.
 653
 654 2018-01-24  Ian Lance Taylor  <iant@golang.org>
 655
 656         PR other/68239
 657         * mmap.c (backtrace_free_locked): Don't put more than 16 entries
 658         on the free list.
 659
 660 2018-01-19  Tony Reix  <tony.reix@atos.net>
 661
 662         * xcoff.c (xcoff_incl_compare): New function.
 663         (xcoff_incl_search): New function.
 664         (xcoff_process_linenos): Use bsearch to find include file.
 665         (xcoff_initialize_fileline): Sort include file information.
 666
 667 2018-01-16  Ian Lance Taylor  <iant@golang.org>
 668
 669         * elf.c (codes) [GENERATE_FIXED_HUFFMAN_TABLE]: Fix size to be
 670         288.
 671         (main) [GENERATE_FIXED_HUFFMAN_TABLE]: Pass 288 to
 672         elf_zlib_inflate_table.  Generate elf_zlib_default_dist_table.
 673         (elf_zlib_default_table): Update.
 674         (elf_zlib_default_dist_table): New static array.
 675         (elf_zlib_inflate): Use elf_zlib_default_dist_table for dist table
 676         for block type 1.
 677         * ztest.c (struct zlib_test): Add uncompressed_len.
 678         (tests): Initialize uncompressed_len field.  Add new test case.
 679         (test_samples): Use uncompressed_len field.
 680
 681 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
 682
 683         Update copyright years.
 684
 685 2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 686
 687         * configure.ac: Add CET_FLAGS to EXTRA_FLAGS.
 688         * aclocal.m4: Regenerate.
 689         * Makefile.in: Likewise.
 690         * configure: Likewise.
 691
 692 2017-10-06  Ian Lance Taylor  <iant@golang.org>
 693
 694         * ztest.c (test_large): Pass unsigned long *, not size_t *, to
 695         zlib uncompress function.
 696
 697 2017-10-05  Ian Lance Taylor  <iant@golang.org>
 698
 699         * elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
 700         Read a four byte integer.
 701         (elf_zlib_inflate): Change val to uint64_t.  Align pin to a 32-bit
 702         boundary before ever calling elf_zlib_fetch.
 703         * ztest.c (test_large): Simplify print statements a bit.
 704
 705 2017-10-02  Ian Lance Taylor  <iant@golang.org>
 706
 707         * ztest.c: #include <errno.h>.
 708         (TEST_TIMING): Don't define, don't test.
 709         (xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME.
 710         (clockid_t, clock_gettime, CLOCK_REALTIME): Likewise.
 711         (ZLIB_CLOCK_GETTIME_ARG): Define.
 712         * configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK.
 713         * Makefile.am: Likewise.
 714         * configure, Makefile.in: Rebuild.
 715
 716 2017-10-02  Thomas Schwinge  <thomas@codesourcery.com>
 717
 718         PR other/67165
 719         * Makefile.am: Append the content of clock_gettime_link to
 720         ztest_LDADD.
 721         * configure.ac: Test for the case that clock_gettime is in librt.
 722         * Makefile.in: Regenerate.
 723         * configure: Likewise.
 724
 725         PR other/67165
 726         * configure.ac: Check for clock_gettime.
 727         * config.h.in: Regenerate.
 728         * configure: Likewise.
 729         * ztest.c (average_time, test_large): Conditionalize test timing
 730         on clock_gettime availability.
 731
 732 2017-09-29  Tony Reix  <tony.reix@atos.net>
 733
 734         * xcoff.c: Initial support for DWARF debug sections in XCOFF.
 735         (STYP_DWARF, SSUBTYP_DW*): Define.
 736         (enum dwarf_section): Define.
 737         (struct dwsect_info): Define.
 738         (xcoff_add): Look for DWARF sections, pass them to
 739         backtrace_dwarf_add.
 740
 741 2017-09-28  Ian Lance Taylor  <iant@golang.org>
 742
 743         PR other/67165
 744         * elf.c (__builtin_prefetch): Define if not __GNUC__.
 745         (unlikely): Define.
 746         (SHF_UNCOMPRESSED, ELFCOMPRESS_ZLIB): Define.
 747         (b_elf_chdr): Define type.
 748         (enum debug_section): Add ZDEBUG_xxx values.
 749         (debug_section_names): Add names for new sections.
 750         (struct debug_section_info): Add compressed field.
 751         (elf_zlib_failed, elf_zlib_fetch): New static functions.
 752         (HUFFMAN_TABLE_SIZE, HUFFMAN_VALUE_MASK): Define.
 753         (HUFFMAN_BITS_SHIFT, HUFFMAN_BITS_MASK): Define.
 754         (HUFFMAN_SECONDARY_SHIFT): Define.
 755         (ZDEBUG_TABLE_SIZE): Define.
 756         (ZDEBUG_TABLE_CODELEN_OFFSET, ZDEBUG_TABLE_WORK_OFFSET): Define.
 757         (final_next_secondary): New static variable if
 758         BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE.
 759         (elf_zlib_inflate_table): New static function.
 760         (BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE): If define, define main
 761         function to produce fixed Huffman table.
 762         (elf_zlib_default_table): New static variable.
 763         (elf_zlib_inflate): New static function.
 764         (elf_zlib_verify_checksum): Likewise.
 765         (elf_zlib_inflate_and_verify): Likewise.
 766         (elf_uncompress_zdebug): Likewise.
 767         (elf_uncompress_chdr): Likewise.
 768         (backtrace_uncompress_zdebug): New extern function.
 769         (elf_add): Look for .zdebug sections and SHF_COMPRESSED debug
 770         sections, and uncompress them.
 771         * internal.h (backtrace_compress_zdebug): Declare.
 772         * ztest.c: New file.
 773         * configure.ac: Check for -lz and check whether the linker
 774         supports --compress-debug-sections.
 775         * Makefile.am (ztest_SOURCES): New variable.
 776         (ztest_CFLAGS, ztest_LDADD): New variables.
 777         (check_PROGRAMS): Add ztest.
 778         (ctestg_SOURCES): New variable.
 779         (ctestg_CFLAGS, ctestg_LDFLAGS, ctestg_LDADD): New variables.
 780         (ctesta_SOURCES): New variable.
 781         (ctesta_CFLAGS, ctesta_LDFLAGS, ctesta_LDADD): New variables.
 782         (check_PROGRAMS): Add ctestg and ctesta.
 783         * configure, config.h.in, Makefile.in: Rebuild.
 784
 785 2017-09-22  Ian Lance Taylor  <iant@golang.org>
 786
 787         PR sanitizer/77631
 788         * configure.ac: Check for lstat and readlink.
 789         * elf.c (lstat, readlink): Provide dummy versions if real versions
 790         are not available.
 791         * configure, config.h.in: Rebuild.
 792
 793 2017-09-21  Ian Lance Taylor  <iant@google.com>
 794
 795         PR go/82284
 796         * elf.c (backtrace_initialize): Set pd.exe_filename.
 797
 798 2017-09-20  Ian Lance Taylor  <iant@golang.org>
 799             Denis Khalikov  <d.khalikov@partner.samsung.com>
 800
 801         PR sanitizer/77631
 802         Support for external debug info.
 803         * elf.c: Include <errno.h>, <sys/stat.h>, <unistd.h>.
 804         (S_ISLNK): Define if not defined.
 805         (xstrnlen): Define if strnlen is not available.
 806         (b_elf_note): Define type.
 807         (NT_GNU_BUILD_ID): Define macro.
 808         (elf_crc32, elf_crc32_file): New static functions.
 809         (elf_is_symlink, elf_readlink): New static functions.
 810         (elf_open_debugfile_by_buildid): New static function.
 811         (elf_try_debugfile): New static function.
 812         (elf_find_debugfile_by_debuglink): New static function.
 813         (elf_open_debugfile_by_debuglink): New static function.
 814         (elf_add): Add filename and debuginfo parameters.  Adjust all
 815         callers.  Look for external debug info notes, and try to fetch
 816         debug info from external file.
 817         (struct phdr_data): Add exe_filename field.
 818         (phdr_callback): Pass filename to elf_add.
 819         (backtrace_initialize): Add filename parameter.
 820         * internal.h (backtrace_initialize): Add filename parameter.
 821         * fileline.c (fileline_initialize): Pass filename to
 822         backtrace_initialize.
 823         * pecoff.c (fileline_initialize): Add unused filename parameter.
 824         * unknown.c (fileline_initialize): Likewise.
 825         * xcoff.c (fileline_initialize): Likewise.
 826         * configure.ac: Check for objcopy --add-gnu-debuglink.
 827         * Makefile.am (dtest): New test target.
 828         * configure, Makefile.in: Rebuild.
 829
 830 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
 831
 832         PR other/81096
 833         * Makefile.am (ttest_CFLAGS): Add $(AM_CFLAGS)
 834         * Makefile.in: Regenerate.
 835
 836 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
 837
 838         PR other/81096
 839         * libbacktrace/Makefile.in
 840         (HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_CFLAGS): Add $(AM_CFLAGS)
 841
 842 2017-08-02  David Edelsohn  <dje.gcc@gmail.com>
 843
 844         PR bootstrap/81638
 845         * xcoff.c (xcoff_process_linenos): Initialize incl to NULL.
 846
 847 2017-07-28  Tony Reix  <tony.reix@atos.net>
 848
 849         * xcoff.c: Don't leak a file descriptor if an archive is malformed.
 850
 851 2017-07-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 852
 853         * fileline.c (fileline_initialize): Print pid_t as long.
 854
 855 2017-07-26  Tony Reix  <tony.reix@atos.net>
 856
 857         * configure.ac: Check for XCOFF32/XCOFF64.  Check for loadquery.
 858         * filetype.awk: Separate AIX XCOFF32 and XCOFF64.
 859         * xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats.
 860         * configure, config.h.in: Regenerate.
 861
 862 2017-07-21  Tony Reix  <tony.reix@atos.net>
 863
 864         * filetype.awk: Add AIX XCOFF type detection.
 865         * configure.ac: Recognize xcoff format.
 866         * Makefile.am (FORMAT_FILES): Add xcoff.c.
 867         * fileline.c: Include <unistd.h>.
 868         (fileline_initialize): Add case for AIX procfs.
 869         * xcoff.c: New file.
 870         * configure, Makefile.in: Rebuild.
 871
 872 2017-06-21  Richard Biener  <rguenther@suse.de>
 873
 874         * configure.ac: Add AC_SYS_LARGEFILE.
 875         * config.h.in: Regenerate.
 876         * configure: Likewise.
 877
 878 2017-06-11  Ian Lance Taylor  <iant@golang.org>
 879
 880         * elf.c (backtrace_initialize): Always set *fileline_fn.
 881         * ttest.c: New file.
 882         * btest.c: Move support functions into testlib.c.  Change calls to
 883         check to pass file name.
 884         * testlib.c: New file, copied from (part of) btest.c.
 885         * testlib.h: New file, declarations for testlib.c.
 886         * edtest.c: Use testlib.h and testlib.c.
 887         * configure.ac: Test for -pthread, set HAVE_PTHREAD conditional.
 888         * Makefile.am (btest_SOURCES): Add testlib.c.
 889         (edtest_SOURCES): Likewise.
 890         (CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD.
 891         (ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define.
 892         * configure, Makefile.in: Rebuild.
 893
 894 2017-05-19  Than McIntosh  <thanm@google.com>
 895
 896         * dwarf.c (free_line_header): Don't free dirs if dirs_count == 0.
 897         (read_line_header): Don't allocate dirs if dirs_count == 0.
 898         * edtest.c: New file.
 899         * edtest2.c: New file.
 900         * Makefile.am (edtest_SOURCES, edtest_LDADD): Define.
 901         (check_PROGRAMS): Add edtest.
 902         (edtest2_build.c, gen_edtest2_build): New targets.
 903         * Makefile.in: Rebuild.
 904
 905 2017-03-08  Sam Thursfield  <sam.thursfield@codethink.co.uk>
 906
 907         * btest.c (test5): Replace #ifdef guard with 'unused' attribute
 908         to fix compile warning when BACKTRACE_SUPPORTED isn't defined.
 909
 910 2017-01-01  Jakub Jelinek  <jakub@redhat.com>
 911
 912         Update copyright years.
 913
 914 2016-11-15  Matthias Klose  <doko@ubuntu.com>
 915
 916         * configure: Regenerate.
 917
 918 2016-09-11  Carlos Liam  <carlos@aarzee.me>
 919
 920         * all: Remove meaningless trailing whitespace.
 921
 922 2016-05-18  Uros Bizjak  <ubizjak@gmail.com>
 923
 924         PR target/71161
 925         * elf.c (phdr_callback) [__i386__]: Add
 926         __attribute__((__force_align_arg_pointer__)).
 927
 928 2016-03-02  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>
 929
 930         * elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
 931         avoid possible crash.
 932         (elf_add): Don't set *fileline_fn to elf_nodebug value in case of
 933         missing debug info anymore.
 934
 935 2016-02-06  John David Anglin  <danglin@gcc.gnu.org>
 936
 937         * mmap.c (MAP_FAILED): Define if not defined.
 938
 939 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
 940
 941         Update copyright years.
 942
 943 2015-12-18  Andris Pavenis  <andris.pavenis@iki.fi>
 944
 945         * configure.ac: Specify that DJGPP do not have mmap
 946         even when sys/mman.h exists.
 947         * configure: Regenerate
 948
 949 2015-12-09  John David Anglin  <danglin@gcc.gnu.org>
 950
 951         PR libgfortran/68115
 952         * configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
 953         * configure: Regenerate.
 954         * elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
 955         to void.
 956
 957 2015-09-17  Ian Lance Taylor  <iant@google.com>
 958
 959         * posix.c (backtrace_open): Cast second argument of open() to int.
 960
 961 2015-09-11  Ian Lance Taylor  <iant@google.com>
 962
 963         * Makefile.am (backtrace.lo): Depend on internal.h.
 964         (sort.lo, stest.lo): Add explicit dependencies.
 965         * Makefile.in: Rebuild.
 966
 967 2015-09-09  Hans-Peter Nilsson  <hp@axis.com>
 968
 969         * backtrace.c: #include <sys/types.h>.
 970
 971 2015-09-08  Ian Lance Taylor  <iant@google.com>
 972
 973         PR other/67457
 974         * backtrace.c: #include "internal.h".
 975         (struct backtrace_data): Add can_alloc field.
 976         (unwind): If can_alloc is false, don't try to get file/line
 977         information.
 978         (backtrace_full): Set can_alloc field in bdata.
 979         * alloc.c (backtrace_alloc): Don't call error_callback if it is
 980         NULL.
 981         * mmap.c (backtrace_alloc): Likewise.
 982         * internal.h: Update comments for backtrace_alloc and
 983         backtrace_free.
 984
 985 2015-09-08  Ian Lance Taylor  <iant@google.com>
 986
 987         PR other/67457
 988         * mmap.c (backtrace_alloc): Correct test for mmap failure.
 989
 990 2015-08-31  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 991
 992         * configure.ac: For spu-*-* targets, set have_fcntl to no.
 993         * configure: Regenerate.
 994
 995 2015-08-27  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 996
 997         * configure.ac: Remove [disable-shared] argument to LT_INIT.
 998         Remove setting PIC_FLAG when building as target library.
 999         * configure: Regenerate.
1000
1001 2015-08-26  Hans-Peter Nilsson  <hp@axis.com>
1002
1003         * configure.ac: Only compile with -fPIC if the target
1004         supports it.
1005         * configure: Regenerate.
1006
1007 2015-08-24  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
1008
1009         * configure.ac: Set have_mmap to no on spu-*-* targets.
1010         * configure: Regenerate.
1011
1012 2015-08-13  Ian Lance Taylor  <iant@google.com>
1013
1014         * dwarf.c (read_function_entry): Add vec_inlined parameter.
1015         Change all callers.
1016
1017 2015-06-11  Martin Sebor  <msebor@redhat.com>
1018
1019         PR sanitizer/65479
1020         * dwarf.c (struct line): Add new field idx.
1021         (line_compare): Use it.
1022         (add_line): Set it.
1023         (read_line_info): Reset it.
1024
1025 2015-05-29  Tristan Gingold  <gingold@adacore.com>
1026
1027         * pecoff.c: New file.
1028         * Makefile.am (FORMAT_FILES): Add pecoff.c and dependencies.
1029         * Makefile.in: Regenerate.
1030         * filetype.awk: Detect pecoff.
1031         * configure.ac: Define BACKTRACE_SUPPORTS_DATA on elf platforms.
1032         Add pecoff.
1033         * btest.c (test5): Test enabled only if BACKTRACE_SUPPORTS_DATA is
1034         true.
1035         * backtrace-supported.h.in (BACKTRACE_SUPPORTS_DATA): Define.
1036         * configure: Regenerate.
1037         * pecoff.c: New file.
1038
1039 2015-05-13  Michael Haubenwallner  <michael.haubenwallner@ssi-schaefer.com>
1040
1041         * Makefile.in: Regenerated with automake-1.11.6.
1042         * aclocal.m4: Likewise.
1043         * configure: Likewise.
1044
1045 2015-01-24  Matthias Klose  <doko@ubuntu.com>
1046
1047         * configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC.
1048         * configure: Regenerate.
1049
1050 2015-01-05  Jakub Jelinek  <jakub@redhat.com>
1051
1052         Update copyright years.
1053
1054 2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>
1055
1056         PR bootstrap/63784
1057         * configure: Regenerated.
1058
1059 2014-11-11  David Malcolm  <dmalcolm@redhat.com>
1060
1061         * ChangeLog.jit: New.
1062
1063 2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
1064
1065         PR target/63610
1066         * configure: Regenerate.
1067
1068 2014-10-23  Ian Lance Taylor  <iant@google.com>
1069
1070         * internal.h (backtrace_atomic_load_pointer) [no atomic or sync]:
1071         Fix to return void *.
1072
1073 2014-05-08  Ian Lance Taylor  <iant@google.com>
1074
1075         * mmap.c (backtrace_free): If freeing a large aligned block of
1076         memory, call munmap rather than holding onto it.
1077         (backtrace_vector_grow): When growing a vector, double the number
1078         of pages requested.  When releasing the old version of a grown
1079         vector, pass the correct size to backtrace_free.
1080
1081 2014-03-07  Ian Lance Taylor  <iant@google.com>
1082
1083         * sort.c (backtrace_qsort): Use middle element as pivot.
1084
1085 2014-03-06  Ian Lance Taylor  <iant@google.com>
1086
1087         * sort.c: New file.
1088         * stest.c: New file.
1089         * internal.h (backtrace_qsort): Declare.
1090         * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort.
1091         (read_line_info, read_function_entry): Likewise.
1092         (read_function_info, build_dwarf_data): Likewise.
1093         * elf.c (elf_initialize_syminfo): Likewise.
1094         * Makefile.am (libbacktrace_la_SOURCES): Add sort.c.
1095         (stest_SOURCES, stest_LDADD): Define.
1096         (check_PROGRAMS): Add stest.
1097
1098 2014-02-07  Misty De Meo  <misty@brew.sh>
1099
1100         PR target/58710
1101         * configure.ac: Use AC_LINK_IFELSE in check for
1102         _Unwind_GetIPInfo.
1103         * configure: Regenerate.
1104
1105 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1106
1107         Update copyright years
1108
1109 2013-12-06  Jakub Jelinek  <jakub@redhat.com>
1110
1111         * elf.c (ET_DYN): Undefine and define again.
1112         (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN,
1113         return early -1 without closing the descriptor.
1114         (struct phdr_data): Add exe_descriptor.
1115         (phdr_callback): If pd->exe_descriptor is not -1, for very first
1116         call if dlpi_name is NULL just call elf_add with the exe_descriptor,
1117         otherwise backtrace_close the exe_descriptor if not -1.  Adjust
1118         call to elf_add.
1119         (backtrace_initialize): Adjust call to elf_add.  If it returns
1120         -1, set pd.exe_descriptor to descriptor, otherwise set it to -1.
1121
1122 2013-12-05  Ian Lance Taylor  <iant@google.com>
1123
1124         * alloc.c (backtrace_vector_finish): Add error_callback and data
1125         parameters.  Call backtrace_vector_release.  Return address base.
1126         * mmap.c (backtrace_vector_finish): Add error_callback and data
1127         parameters.  Return address base.
1128         * dwarf.c (read_function_info): Get new address base from
1129         backtrace_vector_finish.
1130         * internal.h (backtrace_vector_finish): Update declaration.
1131
1132 2013-11-27  Ian Lance Taylor  <iant@google.com>
1133
1134         * dwarf.c (find_address_ranges): New static function, broken out
1135         of build_address_map.
1136         (build_address_map): Call it.
1137         * btest.c (check): Check for missing filename or function, rather
1138         than crashing.
1139         (f3): Check that enough frames were returned.
1140
1141 2013-11-19  Jakub Jelinek  <jakub@redhat.com>
1142
1143         * backtrace.h (backtrace_syminfo_callback): Add symsize argument.
1144         * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as
1145         last argument.
1146         * btest.c (struct symdata): Add size field.
1147         (callback_three): Add symsize argument.  Copy it to the data->size
1148         field.
1149         (f23): Set symdata.size to 0.
1150         (test5): Likewise.  If sizeof (int) > 1, lookup address of
1151         ((uintptr_t) &global) + 1.  Verify symdata.val and symdata.size
1152         values.
1153
1154         * atomic.c: Include sys/types.h.
1155
1156 2013-11-18  Ian Lance Taylor  <iant@google.com>
1157
1158         * configure.ac: Check for support of __atomic extensions.
1159         * internal.h: Declare or #define atomic functions for use in
1160         backtrace code.
1161         * atomic.c: New file.
1162         * dwarf.c (dwarf_lookup_pc): Use atomic functions.
1163         (dwarf_fileline, backtrace_dwarf_add): Likewise.
1164         * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise.
1165         (backtrace_initialize): Likewise.
1166         * fileline.c (fileline_initialize): Likewise.
1167         * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c.
1168         * configure, config.h.in, Makefile.in: Rebuild.
1169
1170 2013-11-18  Jakub Jelinek  <jakub@redhat.com>
1171
1172         * elf.c (SHN_UNDEF): Define.
1173         (elf_initialize_syminfo): Add base_address argument.  Ignore symbols
1174         with st_shndx == SHN_UNDEF.  Add base_address to address fields.
1175         (elf_add): Adjust caller.
1176
1177         * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally.
1178
1179 2013-11-16  Ian Lance Taylor  <iant@google.com>
1180
1181         * backtrace.h (backtrace_create_state): Correct comment about
1182         threading.
1183
1184 2013-11-15  Ian Lance Taylor  <iant@google.com>
1185
1186         * backtrace.h (backtrace_syminfo): Update comment and parameter
1187         name to take any address, not just a PC value.
1188         * elf.c (STT_OBJECT): Define.
1189         (elf_nosyms): Rename parameter pc to addr.
1190         (elf_symbol_search): Rename local variable pc to addr.
1191         (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
1192         (elf_syminfo): Rename parameter pc to addr.
1193         * btest.c (global): New global variable.
1194         (test5): New test.
1195         (main): Call test5.
1196
1197 2013-10-17  Ian Lance Taylor  <iant@google.com>
1198
1199         * elf.c (elf_add): Don't get the wrong offsets if a debug section
1200         is missing.
1201
1202 2013-10-15  David Malcolm  <dmalcolm@redhat.com>
1203
1204         * configure.ac: Add --enable-host-shared, setting up
1205         pre-existing PIC_FLAG variable within Makefile.am et al.
1206         * configure: Regenerate.
1207
1208 2013-09-20  Alan Modra  <amodra@gmail.com>
1209
1210         * configure: Regenerate.
1211
1212 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
1213
1214         * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
1215
1216 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
1217
1218         * elf.c (backtrace_initialize): Pass elf_fileline_fn to
1219         dl_iterate_phdr callbacks.
1220
1221 2013-03-25  Ian Lance Taylor  <iant@google.com>
1222
1223         * alloc.c: #include <sys/types.h>.
1224         * mmap.c: Likewise.
1225
1226 2013-01-31  Ian Lance Taylor  <iant@google.com>
1227
1228         * dwarf.c (read_function_info): Permit fvec parameter to be NULL.
1229         (dwarf_lookup_pc): Don't use ddata->fvec if threaded.
1230
1231 2013-01-25  Jakub Jelinek  <jakub@redhat.com>
1232
1233         PR other/56076
1234         * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir
1235         attribute was not seen.
1236
1237 2013-01-16  Ian Lance Taylor  <iant@google.com>
1238
1239         * dwarf.c (struct unit): Add filename and abs_filename fields.
1240         (build_address_map): Set new fields when reading unit.
1241         (dwarf_lookup_pc): If we don't find an entry in the line table,
1242         just return the main file name.
1243
1244 2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>
1245
1246         Update copyright years.
1247
1248 2013-01-01  Ian Lance Taylor  <iant@google.com>
1249
1250         PR bootstrap/54834
1251         * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I
1252         $(MULTIBUILDTOP)/../../gcc/include.
1253         * Makefile.in: Rebuild.
1254
1255 2013-01-01  Ian Lance Taylor  <iant@google.com>
1256
1257         PR other/55536
1258         * mmap.c (backtrace_alloc): Don't call sync functions if not
1259         threaded.
1260         (backtrace_free): Likewise.
1261
1262 2012-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1263
1264         * mmapio.c: Define MAP_FAILED if not defined.
1265
1266 2012-12-11  Jakub Jelinek  <jakub@redhat.com>
1267
1268         PR bootstrap/54926
1269         * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@.
1270         * configure.ac: If --with-target-subdir, add -frandom-seed=$@
1271         to EXTRA_FLAGS unconditionally, otherwise check whether the compiler
1272         accepts it.
1273         * Makefile.in: Regenerated.
1274         * configure: Regenerated.
1275
1276 2012-12-07  Jakub Jelinek  <jakub@redhat.com>
1277
1278         PR bootstrap/54926
1279         * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@.
1280         * Makefile.in: Regenerated.
1281
1282 2012-11-20  Ian Lance Taylor  <iant@google.com>
1283
1284         * dwarf.c (read_attribute): Always clear val.
1285
1286 2012-11-13  Ian Lance Taylor  <iant@google.com>
1287
1288         PR other/55312
1289         * configure.ac: Only add -Werror if building a target library.
1290         * configure: Rebuild.
1291
1292 2012-11-12  Ian Lance Taylor  <iant@google.com>
1293             Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1294             Gerald Pfeifer  <gerald@pfeifer.com>
1295
1296         * configure.ac: Check for getexecname.
1297         * fileline.c: #include <errno.h>.  Define getexecname if not
1298         available.
1299         (fileline_initialize): Try to find the executable in a few
1300         different ways.
1301         * print.c (error_callback): Only print the filename if it came
1302         from the backtrace state.
1303         * configure, config.h.in: Rebuild.
1304
1305 2012-10-29  Ian Lance Taylor  <iant@google.com>
1306
1307         * mmap.c (backtrace_vector_release): Correct last patch: add
1308         aligned, not size.
1309
1310 2012-10-29  Ian Lance Taylor  <iant@google.com>
1311
1312         * mmap.c (backtrace_vector_release): Make sure freed block is
1313         aligned on 8-byte boundary.
1314
1315 2012-10-26  Ian Lance Taylor  <iant@google.com>
1316
1317         PR other/55087
1318         * posix.c (backtrace_open): Add does_not_exist parameter.
1319         * elf.c (phdr_callback): Do not warn if shared library could not
1320         be opened.
1321         * fileline.c (fileline_initialize): Update calls to
1322         backtrace_open.
1323         * internal.h (backtrace_open): Update declaration.
1324
1325 2012-10-26  Jack Howarth  <howarth@bromo.med.uc.edu>
1326
1327         PR target/55061
1328         * configure.ac: Check for _Unwind_GetIPInfo function declaration.
1329         * configure: Regenerate.
1330
1331 2012-10-24  Ian Lance Taylor  <iant@google.com>
1332
1333         PR target/55061
1334         * configure.ac: Check whether -funwind-tables option works.
1335         * configure: Rebuild.
1336
1337 2012-10-11  Ian Lance Taylor  <iant@google.com>
1338
1339         * configure.ac: Do not use dl_iterate_phdr on Solaris 10.
1340         * configure: Rebuild.
1341
1342 2012-10-10  Ian Lance Taylor  <iant@google.com>
1343
1344         * elf.c: Rename all Elf typedefs to start with b_elf, and be all
1345         lower case.
1346
1347 2012-10-10  Hans-Peter Nilsson  <hp@bitrange.com>
1348
1349         * elf.c (elf_add_syminfo_data): Add casts to avoid warning.
1350
1351 2012-10-09  Ian Lance Taylor  <iant@google.com>
1352
1353         * dwarf.c (dwarf_fileline): Add cast to avoid warning.
1354         (backtrace_dwarf_add): Likewise.
1355
1356 2012-10-09  Ian Lance Taylor  <iant@google.com>
1357
1358         Add support for tracing through shared libraries.
1359         * configure.ac: Check for link.h and dl_iterate_phdr.
1360         * elf.c: #include <link.h> if system has dl_iterate_phdr.  #undef
1361         ELF macros before #defining them.
1362         (dl_phdr_info, dl_iterate_phdr): Define if system does not have
1363         dl_iterate_phdr.
1364         (struct elf_syminfo_data): Add next field.
1365         (elf_initialize_syminfo): Initialize next field.
1366         (elf_add_syminfo_data): New static function.
1367         (elf_add): New static function, broken out of
1368         backtrace_initialize.  Call backtrace_dwarf_add instead of
1369         backtrace_dwarf_initialize.
1370         (struct phdr_data): Define.
1371         (phdr_callback): New static function.
1372         (backtrace_initialize): Call elf_add.
1373         * dwarf.c (struct dwarf_data): Add next and base_address fields.
1374         (add_unit_addr): Add base_address parameter.  Change all callers.
1375         (add_unit_ranges, build_address_map): Likewise.
1376         (add_line): Add ddata parameter.  Change all callers.
1377         (read_line_program, add_function_range): Likewise.
1378         (dwarf_lookup_pc): New static function, broken out of
1379         dwarf_fileline.
1380         (dwarf_fileline): Call dwarf_lookup_pc.
1381         (build_dwarf_data): New static function.
1382         (backtrace_dwarf_add): New function.
1383         (backtrace_dwarf_initialize): Remove.
1384         * internal.h (backtrace_dwarf_initialize): Don't declare.
1385         (backtrace_dwarf_add): Declare.
1386         * configure, config.h.in: Rebuild.
1387
1388 2012-10-04  Gerald Pfeifer  <gerald@pfeifer.com>
1389
1390         * btest.c (f23): Avoid uninitialized variable warning.
1391
1392 2012-10-04  Ian Lance Taylor  <iant@google.com>
1393
1394         * dwarf.c: If the system header files do not declare strnlen,
1395         provide our own version.
1396
1397 2012-10-03  Ian Lance Taylor  <iant@google.com>
1398
1399         * dwarf.c (read_uleb128): Fix overflow test.
1400         (read_sleb128): Likewise.
1401         (build_address_map): Don't change unit_buf.start.
1402
1403 2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
1404
1405         PR other/54761
1406         * configure.ac (EXTRA_FLAGS): New.
1407         * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
1408         * configure, Makefile.in: Regenerate.
1409
1410 2012-09-29  Ian Lance Taylor  <iant@google.com>
1411
1412         PR other/54749
1413         * fileline.c (fileline_initialize): Pass errnum as -1 when
1414         reporting that we could not read executable information after a
1415         previous failure.
1416
1417 2012-09-27  Ian Lance Taylor  <iant@google.com>
1418
1419         PR bootstrap/54732
1420         * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE.
1421         * Makefile.am: Add dependencies for all objects.
1422         * configure, aclocal.m4, Makefile.in: Rebuild.
1423
1424 2012-09-27  Ian Lance Taylor  <iant@google.com>
1425
1426         PR other/54726
1427         * elf.c (backtrace_initialize): Set *fileln_fn, not
1428         state->fileln_fn.
1429
1430 2012-09-19  Ian Lance Taylor  <iant@google.com>
1431
1432         * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled
1433         as a target library.
1434         * configure: Rebuild.
1435
1436 2012-09-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1437             Ian Lance Taylor  <iant@google.com>
1438
1439         * configure.ac (GCC_HEADER_STDINT): Invoke.
1440         * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
1441         * btest.c: Don't include <stdint.h>.
1442         * dwarf.c: Likewise.
1443         * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.
1444
1445 2012-09-18  Ian Lance Taylor  <iant@google.com>
1446
1447         PR bootstrap/54623
1448         * Makefile.am (AM_CPPFLAGS): Define.
1449         (AM_CFLAGS): Remove -I options.
1450         * Makefile.in: Rebuild.
1451
1452 2012-09-18  Ian Lance Taylor  <iant@google.com>
1453
1454         * posix.c (O_BINARY): Define if not defined.
1455         (backtrace_open): Pass O_BINARY to open.  Only call fcntl if
1456         HAVE_FCNTL is defined.
1457         * configure.ac: Test for the fcntl function.
1458         * configure, config.h.in: Rebuild.
1459
1460 2012-09-18  Ian Lance Taylor  <iant@google.com>
1461
1462         * btest.c (test1, test2, test3, test4): Add the unused attribute.
1463
1464 2012-09-18  Ian Lance Taylor  <iant@google.com>
1465
1466         * dwarf.c: Correct test of HAVE_DECL_STRNLEN.
1467
1468 2012-09-18  Ian Lance Taylor  <iant@google.com>
1469
1470         * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS.
1471         * mmapio.c: Don't define _GNU_SOURCE.
1472         * configure, config.h.in: Rebuild.
1473
1474 2012-09-18  Ian Lance Taylor  <iant@google.com>
1475
1476         * configure.ac: Check whether strnlen is declared.
1477         * dwarf.c: Declare strnlen if not declared.
1478         * configure, config.h.in: Rebuild.
1479
1480 2012-09-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1481
1482         * fileline.c: Include <stdlib.h>.
1483         * mmap.c: Likewise.
1484
1485 2012-09-17  Ian Lance Taylor  <iant@google.com>
1486
1487         PR bootstrap/54611
1488         * nounwind.c (backtrace_full): Rename from backtrace.  Add state
1489         parameter.
1490
1491 2012-09-17  Gerald Pfeifer  <gerald@pfeifer.com>
1492
1493         PR bootstrap/54611
1494         * nounwind.c (backtrace_simple): Add state parameter.
1495
1496 2012-09-17  Ian Lance Taylor  <iant@google.com>
1497
1498         PR bootstrap/54609
1499         * unknown.c (unknown_fileline): Add state parameter, remove
1500         fileline_data parameter, name error_callback parameter.
1501         (backtrace_initialize): Add state parameter.
1502
1503 2012-09-17  Ian Lance Taylor  <iant@google.com>
1504
1505         * Initial implementation.
1506 \f
1507 Copyright (C) 2012-2020 Free Software Foundation, Inc.
1508
1509 Copying and distribution of this file, with or without modification,
1510 are permitted in any medium without royalty provided the copyright
1511 notice and this notice are preserved.