libbacktrace/ChangeLog

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