libbacktrace/ChangeLog

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