libbacktrace/ChangeLog

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