libbacktrace/ChangeLog

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