libbacktrace/ChangeLog

   1 2018-02-14  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR other/82368
   4         * elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define.
   5         (struct elf_ppc64_opd_data): New type.
   6         (elf_initialize_syminfo): Add opd argument, handle symbols
   7         pointing into the PowerPC64 ELFv1 .opd section.
   8         (elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer
   9         to structure with .opd data to elf_initialize_syminfo.
  10
  11 2018-01-31  Ian Lance Taylor  <iant@golang.org>
  12
  13         * elf.c (elf_add): Close descriptor if we use a debugfile.
  14         * btest.c (check_open_files): New static function.
  15         (main): Call check_open_files.
  16
  17 2018-01-25  Ian Lance Taylor  <iant@golang.org>
  18
  19         * elf.c (elf_open_debugfile_by_debuglink): Don't check CRC if the
  20         desired CRC is zero.
  21         (elf_add): Don't clear *found_sym and *found_dwarf if debuginfo.
  22
  23 2018-01-25  Ian Lance Taylor  <iant@golang.org>
  24
  25         * pecoff.c (coff_add): Only release syms_view if it is valid.
  26
  27 2018-01-25  Ian Lance Taylor  <iant@golang.org>
  28
  29         * pecoff.c (coff_add): Another memcpy -> coff_read4 fix.
  30
  31 2018-01-24  Ian Lance Taylor  <iant@golang.org>
  32
  33         * pecoff.c (coff_add): Use coff_read4, not memcpy.
  34
  35 2018-01-24  Ian Lance Taylor  <iant@golang.org>
  36
  37         PR other/68239
  38         * mmap.c (backtrace_free_locked): Don't put more than 16 entries
  39         on the free list.
  40
  41 2018-01-19  Tony Reix  <tony.reix@atos.net>
  42
  43         * xcoff.c (xcoff_incl_compare): New function.
  44         (xcoff_incl_search): New function.
  45         (xcoff_process_linenos): Use bsearch to find include file.
  46         (xcoff_initialize_fileline): Sort include file information.
  47
  48 2018-01-16  Ian Lance Taylor  <iant@golang.org>
  49
  50         * elf.c (codes) [GENERATE_FIXED_HUFFMAN_TABLE]: Fix size to be
  51         288.
  52         (main) [GENERATE_FIXED_HUFFMAN_TABLE]: Pass 288 to
  53         elf_zlib_inflate_table.  Generate elf_zlib_default_dist_table.
  54         (elf_zlib_default_table): Update.
  55         (elf_zlib_default_dist_table): New static array.
  56         (elf_zlib_inflate): Use elf_zlib_default_dist_table for dist table
  57         for block type 1.
  58         * ztest.c (struct zlib_test): Add uncompressed_len.
  59         (tests): Initialize uncompressed_len field.  Add new test case.
  60         (test_samples): Use uncompressed_len field.
  61
  62 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
  63
  64         Update copyright years.
  65
  66 2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
  67
  68         * configure.ac: Add CET_FLAGS to EXTRA_FLAGS.
  69         * aclocal.m4: Regenerate.
  70         * Makefile.in: Likewise.
  71         * configure: Likewise.
  72
  73 2017-10-06  Ian Lance Taylor  <iant@golang.org>
  74
  75         * ztest.c (test_large): Pass unsigned long *, not size_t *, to
  76         zlib uncompress function.
  77
  78 2017-10-05  Ian Lance Taylor  <iant@golang.org>
  79
  80         * elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
  81         Read a four byte integer.
  82         (elf_zlib_inflate): Change val to uint64_t.  Align pin to a 32-bit
  83         boundary before ever calling elf_zlib_fetch.
  84         * ztest.c (test_large): Simplify print statements a bit.
  85
  86 2017-10-02  Ian Lance Taylor  <iant@golang.org>
  87
  88         * ztest.c: #include <errno.h>.
  89         (TEST_TIMING): Don't define, don't test.
  90         (xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME.
  91         (clockid_t, clock_gettime, CLOCK_REALTIME): Likewise.
  92         (ZLIB_CLOCK_GETTIME_ARG): Define.
  93         * configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK.
  94         * Makefile.am: Likewise.
  95         * configure, Makefile.in: Rebuild.
  96
  97 2017-10-02  Thomas Schwinge  <thomas@codesourcery.com>
  98
  99         PR other/67165
 100         * Makefile.am: Append the content of clock_gettime_link to
 101         ztest_LDADD.
 102         * configure.ac: Test for the case that clock_gettime is in librt.
 103         * Makefile.in: Regenerate.
 104         * configure: Likewise.
 105
 106         PR other/67165
 107         * configure.ac: Check for clock_gettime.
 108         * config.h.in: Regenerate.
 109         * configure: Likewise.
 110         * ztest.c (average_time, test_large): Conditionalize test timing
 111         on clock_gettime availability.
 112
 113 2017-09-29  Tony Reix  <tony.reix@atos.net>
 114
 115         * xcoff.c: Initial support for DWARF debug sections in XCOFF.
 116         (STYP_DWARF, SSUBTYP_DW*): Define.
 117         (enum dwarf_section): Define.
 118         (struct dwsect_info): Define.
 119         (xcoff_add): Look for DWARF sections, pass them to
 120         backtrace_dwarf_add.
 121
 122 2017-09-28  Ian Lance Taylor  <iant@golang.org>
 123
 124         PR other/67165
 125         * elf.c (__builtin_prefetch): Define if not __GNUC__.
 126         (unlikely): Define.
 127         (SHF_UNCOMPRESSED, ELFCOMPRESS_ZLIB): Define.
 128         (b_elf_chdr): Define type.
 129         (enum debug_section): Add ZDEBUG_xxx values.
 130         (debug_section_names): Add names for new sections.
 131         (struct debug_section_info): Add compressed field.
 132         (elf_zlib_failed, elf_zlib_fetch): New static functions.
 133         (HUFFMAN_TABLE_SIZE, HUFFMAN_VALUE_MASK): Define.
 134         (HUFFMAN_BITS_SHIFT, HUFFMAN_BITS_MASK): Define.
 135         (HUFFMAN_SECONDARY_SHIFT): Define.
 136         (ZDEBUG_TABLE_SIZE): Define.
 137         (ZDEBUG_TABLE_CODELEN_OFFSET, ZDEBUG_TABLE_WORK_OFFSET): Define.
 138         (final_next_secondary): New static variable if
 139         BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE.
 140         (elf_zlib_inflate_table): New static function.
 141         (BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE): If define, define main
 142         function to produce fixed Huffman table.
 143         (elf_zlib_default_table): New static variable.
 144         (elf_zlib_inflate): New static function.
 145         (elf_zlib_verify_checksum): Likewise.
 146         (elf_zlib_inflate_and_verify): Likewise.
 147         (elf_uncompress_zdebug): Likewise.
 148         (elf_uncompress_chdr): Likewise.
 149         (backtrace_uncompress_zdebug): New extern function.
 150         (elf_add): Look for .zdebug sections and SHF_COMPRESSED debug
 151         sections, and uncompress them.
 152         * internal.h (backtrace_compress_zdebug): Declare.
 153         * ztest.c: New file.
 154         * configure.ac: Check for -lz and check whether the linker
 155         supports --compress-debug-sections.
 156         * Makefile.am (ztest_SOURCES): New variable.
 157         (ztest_CFLAGS, ztest_LDADD): New variables.
 158         (check_PROGRAMS): Add ztest.
 159         (ctestg_SOURCES): New variable.
 160         (ctestg_CFLAGS, ctestg_LDFLAGS, ctestg_LDADD): New variables.
 161         (ctesta_SOURCES): New variable.
 162         (ctesta_CFLAGS, ctesta_LDFLAGS, ctesta_LDADD): New variables.
 163         (check_PROGRAMS): Add ctestg and ctesta.
 164         * configure, config.h.in, Makefile.in: Rebuild.
 165
 166 2017-09-22  Ian Lance Taylor  <iant@golang.org>
 167
 168         PR sanitizer/77631
 169         * configure.ac: Check for lstat and readlink.
 170         * elf.c (lstat, readlink): Provide dummy versions if real versions
 171         are not available.
 172         * configure, config.h.in: Rebuild.
 173
 174 2017-09-21  Ian Lance Taylor  <iant@google.com>
 175
 176         PR go/82284
 177         * elf.c (backtrace_initialize): Set pd.exe_filename.
 178
 179 2017-09-20  Ian Lance Taylor  <iant@golang.org>
 180             Denis Khalikov  <d.khalikov@partner.samsung.com>
 181
 182         PR sanitizer/77631
 183         Support for external debug info.
 184         * elf.c: Include <errno.h>, <sys/stat.h>, <unistd.h>.
 185         (S_ISLNK): Define if not defined.
 186         (xstrnlen): Define if strnlen is not available.
 187         (b_elf_note): Define type.
 188         (NT_GNU_BUILD_ID): Define macro.
 189         (elf_crc32, elf_crc32_file): New static functions.
 190         (elf_is_symlink, elf_readlink): New static functions.
 191         (elf_open_debugfile_by_buildid): New static function.
 192         (elf_try_debugfile): New static function.
 193         (elf_find_debugfile_by_debuglink): New static function.
 194         (elf_open_debugfile_by_debuglink): New static function.
 195         (elf_add): Add filename and debuginfo parameters.  Adjust all
 196         callers.  Look for external debug info notes, and try to fetch
 197         debug info from external file.
 198         (struct phdr_data): Add exe_filename field.
 199         (phdr_callback): Pass filename to elf_add.
 200         (backtrace_initialize): Add filename parameter.
 201         * internal.h (backtrace_initialize): Add filename parameter.
 202         * fileline.c (fileline_initialize): Pass filename to
 203         backtrace_initialize.
 204         * pecoff.c (fileline_initialize): Add unused filename parameter.
 205         * unknown.c (fileline_initialize): Likewise.
 206         * xcoff.c (fileline_initialize): Likewise.
 207         * configure.ac: Check for objcopy --add-gnu-debuglink.
 208         * Makefile.am (dtest): New test target.
 209         * configure, Makefile.in: Rebuild.
 210
 211 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
 212
 213         PR other/81096
 214         * Makefile.am (ttest_CFLAGS): Add $(AM_CFLAGS)
 215         * Makefile.in: Regenerate.
 216
 217 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
 218
 219         PR other/81096
 220         * libbacktrace/Makefile.in
 221         (HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_CFLAGS): Add $(AM_CFLAGS)
 222
 223 2017-08-02  David Edelsohn  <dje.gcc@gmail.com>
 224
 225         PR bootstrap/81638
 226         * xcoff.c (xcoff_process_linenos): Initialize incl to NULL.
 227
 228 2017-07-28  Tony Reix  <tony.reix@atos.net>
 229
 230         * xcoff.c: Don't leak a file descriptor if an archive is malformed.
 231
 232 2017-07-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 233
 234         * fileline.c (fileline_initialize): Print pid_t as long.
 235
 236 2017-07-26  Tony Reix  <tony.reix@atos.net>
 237
 238         * configure.ac: Check for XCOFF32/XCOFF64.  Check for loadquery.
 239         * filetype.awk: Separate AIX XCOFF32 and XCOFF64.
 240         * xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats.
 241         * configure, config.h.in: Regenerate.
 242
 243 2017-07-21  Tony Reix  <tony.reix@atos.net>
 244
 245         * filetype.awk: Add AIX XCOFF type detection.
 246         * configure.ac: Recognize xcoff format.
 247         * Makefile.am (FORMAT_FILES): Add xcoff.c.
 248         * fileline.c: Include <unistd.h>.
 249         (fileline_initialize): Add case for AIX procfs.
 250         * xcoff.c: New file.
 251         * configure, Makefile.in: Rebuild.
 252
 253 2017-06-21  Richard Biener  <rguenther@suse.de>
 254
 255         * configure.ac: Add AC_SYS_LARGEFILE.
 256         * config.h.in: Regenerate.
 257         * configure: Likewise.
 258
 259 2017-06-11  Ian Lance Taylor  <iant@golang.org>
 260
 261         * elf.c (backtrace_initialize): Always set *fileline_fn.
 262         * ttest.c: New file.
 263         * btest.c: Move support functions into testlib.c.  Change calls to
 264         check to pass file name.
 265         * testlib.c: New file, copied from (part of) btest.c.
 266         * testlib.h: New file, declarations for testlib.c.
 267         * edtest.c: Use testlib.h and testlib.c.
 268         * configure.ac: Test for -pthread, set HAVE_PTHREAD conditional.
 269         * Makefile.am (btest_SOURCES): Add testlib.c.
 270         (edtest_SOURCES): Likewise.
 271         (CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD.
 272         (ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define.
 273         * configure, Makefile.in: Rebuild.
 274
 275 2017-05-19  Than McIntosh  <thanm@google.com>
 276
 277         * dwarf.c (free_line_header): Don't free dirs if dirs_count == 0.
 278         (read_line_header): Don't allocate dirs if dirs_count == 0.
 279         * edtest.c: New file.
 280         * edtest2.c: New file.
 281         * Makefile.am (edtest_SOURCES, edtest_LDADD): Define.
 282         (check_PROGRAMS): Add edtest.
 283         (edtest2_build.c, gen_edtest2_build): New targets.
 284         * Makefile.in: Rebuild.
 285
 286 2017-03-08  Sam Thursfield  <sam.thursfield@codethink.co.uk>
 287
 288         * btest.c (test5): Replace #ifdef guard with 'unused' attribute
 289         to fix compile warning when BACKTRACE_SUPPORTED isn't defined.
 290
 291 2017-01-01  Jakub Jelinek  <jakub@redhat.com>
 292
 293         Update copyright years.
 294
 295 2016-11-15  Matthias Klose  <doko@ubuntu.com>
 296
 297         * configure: Regenerate.
 298
 299 2016-09-11  Carlos Liam  <carlos@aarzee.me>
 300
 301         * all: Remove meaningless trailing whitespace.
 302
 303 2016-05-18  Uros Bizjak  <ubizjak@gmail.com>
 304
 305         PR target/71161
 306         * elf.c (phdr_callback) [__i386__]: Add
 307         __attribute__((__force_align_arg_pointer__)).
 308
 309 2016-03-02  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>
 310
 311         * elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
 312         avoid possible crash.
 313         (elf_add): Don't set *fileline_fn to elf_nodebug value in case of
 314         missing debug info anymore.
 315
 316 2016-02-06  John David Anglin  <danglin@gcc.gnu.org>
 317
 318         * mmap.c (MAP_FAILED): Define if not defined.
 319
 320 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
 321
 322         Update copyright years.
 323
 324 2015-12-18  Andris Pavenis  <andris.pavenis@iki.fi>
 325
 326         * configure.ac: Specify that DJGPP do not have mmap
 327         even when sys/mman.h exists.
 328         * configure: Regenerate
 329
 330 2015-12-09  John David Anglin  <danglin@gcc.gnu.org>
 331
 332         PR libgfortran/68115
 333         * configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
 334         * configure: Regenerate.
 335         * elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
 336         to void.
 337
 338 2015-09-17  Ian Lance Taylor  <iant@google.com>
 339
 340         * posix.c (backtrace_open): Cast second argument of open() to int.
 341
 342 2015-09-11  Ian Lance Taylor  <iant@google.com>
 343
 344         * Makefile.am (backtrace.lo): Depend on internal.h.
 345         (sort.lo, stest.lo): Add explicit dependencies.
 346         * Makefile.in: Rebuild.
 347
 348 2015-09-09  Hans-Peter Nilsson  <hp@axis.com>
 349
 350         * backtrace.c: #include <sys/types.h>.
 351
 352 2015-09-08  Ian Lance Taylor  <iant@google.com>
 353
 354         PR other/67457
 355         * backtrace.c: #include "internal.h".
 356         (struct backtrace_data): Add can_alloc field.
 357         (unwind): If can_alloc is false, don't try to get file/line
 358         information.
 359         (backtrace_full): Set can_alloc field in bdata.
 360         * alloc.c (backtrace_alloc): Don't call error_callback if it is
 361         NULL.
 362         * mmap.c (backtrace_alloc): Likewise.
 363         * internal.h: Update comments for backtrace_alloc and
 364         backtrace_free.
 365
 366 2015-09-08  Ian Lance Taylor  <iant@google.com>
 367
 368         PR other/67457
 369         * mmap.c (backtrace_alloc): Correct test for mmap failure.
 370
 371 2015-08-31  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 372
 373         * configure.ac: For spu-*-* targets, set have_fcntl to no.
 374         * configure: Regenerate.
 375
 376 2015-08-27  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 377
 378         * configure.ac: Remove [disable-shared] argument to LT_INIT.
 379         Remove setting PIC_FLAG when building as target library.
 380         * configure: Regenerate.
 381
 382 2015-08-26  Hans-Peter Nilsson  <hp@axis.com>
 383
 384         * configure.ac: Only compile with -fPIC if the target
 385         supports it.
 386         * configure: Regenerate.
 387
 388 2015-08-24  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 389
 390         * configure.ac: Set have_mmap to no on spu-*-* targets.
 391         * configure: Regenerate.
 392
 393 2015-08-13  Ian Lance Taylor  <iant@google.com>
 394
 395         * dwarf.c (read_function_entry): Add vec_inlined parameter.
 396         Change all callers.
 397
 398 2015-06-11  Martin Sebor  <msebor@redhat.com>
 399
 400         PR sanitizer/65479
 401         * dwarf.c (struct line): Add new field idx.
 402         (line_compare): Use it.
 403         (add_line): Set it.
 404         (read_line_info): Reset it.
 405
 406 2015-05-29  Tristan Gingold  <gingold@adacore.com>
 407
 408         * pecoff.c: New file.
 409         * Makefile.am (FORMAT_FILES): Add pecoff.c and dependencies.
 410         * Makefile.in: Regenerate.
 411         * filetype.awk: Detect pecoff.
 412         * configure.ac: Define BACKTRACE_SUPPORTS_DATA on elf platforms.
 413         Add pecoff.
 414         * btest.c (test5): Test enabled only if BACKTRACE_SUPPORTS_DATA is
 415         true.
 416         * backtrace-supported.h.in (BACKTRACE_SUPPORTS_DATA): Define.
 417         * configure: Regenerate.
 418         * pecoff.c: New file.
 419
 420 2015-05-13  Michael Haubenwallner  <michael.haubenwallner@ssi-schaefer.com>
 421
 422         * Makefile.in: Regenerated with automake-1.11.6.
 423         * aclocal.m4: Likewise.
 424         * configure: Likewise.
 425
 426 2015-01-24  Matthias Klose  <doko@ubuntu.com>
 427
 428         * configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC.
 429         * configure: Regenerate.
 430
 431 2015-01-05  Jakub Jelinek  <jakub@redhat.com>
 432
 433         Update copyright years.
 434
 435 2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>
 436
 437         PR bootstrap/63784
 438         * configure: Regenerated.
 439
 440 2014-11-11  David Malcolm  <dmalcolm@redhat.com>
 441
 442         * ChangeLog.jit: New.
 443
 444 2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 445
 446         PR target/63610
 447         * configure: Regenerate.
 448
 449 2014-10-23  Ian Lance Taylor  <iant@google.com>
 450
 451         * internal.h (backtrace_atomic_load_pointer) [no atomic or sync]:
 452         Fix to return void *.
 453
 454 2014-05-08  Ian Lance Taylor  <iant@google.com>
 455
 456         * mmap.c (backtrace_free): If freeing a large aligned block of
 457         memory, call munmap rather than holding onto it.
 458         (backtrace_vector_grow): When growing a vector, double the number
 459         of pages requested.  When releasing the old version of a grown
 460         vector, pass the correct size to backtrace_free.
 461
 462 2014-03-07  Ian Lance Taylor  <iant@google.com>
 463
 464         * sort.c (backtrace_qsort): Use middle element as pivot.
 465
 466 2014-03-06  Ian Lance Taylor  <iant@google.com>
 467
 468         * sort.c: New file.
 469         * stest.c: New file.
 470         * internal.h (backtrace_qsort): Declare.
 471         * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort.
 472         (read_line_info, read_function_entry): Likewise.
 473         (read_function_info, build_dwarf_data): Likewise.
 474         * elf.c (elf_initialize_syminfo): Likewise.
 475         * Makefile.am (libbacktrace_la_SOURCES): Add sort.c.
 476         (stest_SOURCES, stest_LDADD): Define.
 477         (check_PROGRAMS): Add stest.
 478
 479 2014-02-07  Misty De Meo  <misty@brew.sh>
 480
 481         PR target/58710
 482         * configure.ac: Use AC_LINK_IFELSE in check for
 483         _Unwind_GetIPInfo.
 484         * configure: Regenerate.
 485
 486 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 487
 488         Update copyright years
 489
 490 2013-12-06  Jakub Jelinek  <jakub@redhat.com>
 491
 492         * elf.c (ET_DYN): Undefine and define again.
 493         (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN,
 494         return early -1 without closing the descriptor.
 495         (struct phdr_data): Add exe_descriptor.
 496         (phdr_callback): If pd->exe_descriptor is not -1, for very first
 497         call if dlpi_name is NULL just call elf_add with the exe_descriptor,
 498         otherwise backtrace_close the exe_descriptor if not -1.  Adjust
 499         call to elf_add.
 500         (backtrace_initialize): Adjust call to elf_add.  If it returns
 501         -1, set pd.exe_descriptor to descriptor, otherwise set it to -1.
 502
 503 2013-12-05  Ian Lance Taylor  <iant@google.com>
 504
 505         * alloc.c (backtrace_vector_finish): Add error_callback and data
 506         parameters.  Call backtrace_vector_release.  Return address base.
 507         * mmap.c (backtrace_vector_finish): Add error_callback and data
 508         parameters.  Return address base.
 509         * dwarf.c (read_function_info): Get new address base from
 510         backtrace_vector_finish.
 511         * internal.h (backtrace_vector_finish): Update declaration.
 512
 513 2013-11-27  Ian Lance Taylor  <iant@google.com>
 514
 515         * dwarf.c (find_address_ranges): New static function, broken out
 516         of build_address_map.
 517         (build_address_map): Call it.
 518         * btest.c (check): Check for missing filename or function, rather
 519         than crashing.
 520         (f3): Check that enough frames were returned.
 521
 522 2013-11-19  Jakub Jelinek  <jakub@redhat.com>
 523
 524         * backtrace.h (backtrace_syminfo_callback): Add symsize argument.
 525         * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as
 526         last argument.
 527         * btest.c (struct symdata): Add size field.
 528         (callback_three): Add symsize argument.  Copy it to the data->size
 529         field.
 530         (f23): Set symdata.size to 0.
 531         (test5): Likewise.  If sizeof (int) > 1, lookup address of
 532         ((uintptr_t) &global) + 1.  Verify symdata.val and symdata.size
 533         values.
 534
 535         * atomic.c: Include sys/types.h.
 536
 537 2013-11-18  Ian Lance Taylor  <iant@google.com>
 538
 539         * configure.ac: Check for support of __atomic extensions.
 540         * internal.h: Declare or #define atomic functions for use in
 541         backtrace code.
 542         * atomic.c: New file.
 543         * dwarf.c (dwarf_lookup_pc): Use atomic functions.
 544         (dwarf_fileline, backtrace_dwarf_add): Likewise.
 545         * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise.
 546         (backtrace_initialize): Likewise.
 547         * fileline.c (fileline_initialize): Likewise.
 548         * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c.
 549         * configure, config.h.in, Makefile.in: Rebuild.
 550
 551 2013-11-18  Jakub Jelinek  <jakub@redhat.com>
 552
 553         * elf.c (SHN_UNDEF): Define.
 554         (elf_initialize_syminfo): Add base_address argument.  Ignore symbols
 555         with st_shndx == SHN_UNDEF.  Add base_address to address fields.
 556         (elf_add): Adjust caller.
 557
 558         * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally.
 559
 560 2013-11-16  Ian Lance Taylor  <iant@google.com>
 561
 562         * backtrace.h (backtrace_create_state): Correct comment about
 563         threading.
 564
 565 2013-11-15  Ian Lance Taylor  <iant@google.com>
 566
 567         * backtrace.h (backtrace_syminfo): Update comment and parameter
 568         name to take any address, not just a PC value.
 569         * elf.c (STT_OBJECT): Define.
 570         (elf_nosyms): Rename parameter pc to addr.
 571         (elf_symbol_search): Rename local variable pc to addr.
 572         (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
 573         (elf_syminfo): Rename parameter pc to addr.
 574         * btest.c (global): New global variable.
 575         (test5): New test.
 576         (main): Call test5.
 577
 578 2013-10-17  Ian Lance Taylor  <iant@google.com>
 579
 580         * elf.c (elf_add): Don't get the wrong offsets if a debug section
 581         is missing.
 582
 583 2013-10-15  David Malcolm  <dmalcolm@redhat.com>
 584
 585         * configure.ac: Add --enable-host-shared, setting up
 586         pre-existing PIC_FLAG variable within Makefile.am et al.
 587         * configure: Regenerate.
 588
 589 2013-09-20  Alan Modra  <amodra@gmail.com>
 590
 591         * configure: Regenerate.
 592
 593 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
 594
 595         * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
 596
 597 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
 598
 599         * elf.c (backtrace_initialize): Pass elf_fileline_fn to
 600         dl_iterate_phdr callbacks.
 601
 602 2013-03-25  Ian Lance Taylor  <iant@google.com>
 603
 604         * alloc.c: #include <sys/types.h>.
 605         * mmap.c: Likewise.
 606
 607 2013-01-31  Ian Lance Taylor  <iant@google.com>
 608
 609         * dwarf.c (read_function_info): Permit fvec parameter to be NULL.
 610         (dwarf_lookup_pc): Don't use ddata->fvec if threaded.
 611
 612 2013-01-25  Jakub Jelinek  <jakub@redhat.com>
 613
 614         PR other/56076
 615         * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir
 616         attribute was not seen.
 617
 618 2013-01-16  Ian Lance Taylor  <iant@google.com>
 619
 620         * dwarf.c (struct unit): Add filename and abs_filename fields.
 621         (build_address_map): Set new fields when reading unit.
 622         (dwarf_lookup_pc): If we don't find an entry in the line table,
 623         just return the main file name.
 624
 625 2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>
 626
 627         Update copyright years.
 628
 629 2013-01-01  Ian Lance Taylor  <iant@google.com>
 630
 631         PR bootstrap/54834
 632         * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I
 633         $(MULTIBUILDTOP)/../../gcc/include.
 634         * Makefile.in: Rebuild.
 635
 636 2013-01-01  Ian Lance Taylor  <iant@google.com>
 637
 638         PR other/55536
 639         * mmap.c (backtrace_alloc): Don't call sync functions if not
 640         threaded.
 641         (backtrace_free): Likewise.
 642
 643 2012-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 644
 645         * mmapio.c: Define MAP_FAILED if not defined.
 646
 647 2012-12-11  Jakub Jelinek  <jakub@redhat.com>
 648
 649         PR bootstrap/54926
 650         * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@.
 651         * configure.ac: If --with-target-subdir, add -frandom-seed=$@
 652         to EXTRA_FLAGS unconditionally, otherwise check whether the compiler
 653         accepts it.
 654         * Makefile.in: Regenerated.
 655         * configure: Regenerated.
 656
 657 2012-12-07  Jakub Jelinek  <jakub@redhat.com>
 658
 659         PR bootstrap/54926
 660         * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@.
 661         * Makefile.in: Regenerated.
 662
 663 2012-11-20  Ian Lance Taylor  <iant@google.com>
 664
 665         * dwarf.c (read_attribute): Always clear val.
 666
 667 2012-11-13  Ian Lance Taylor  <iant@google.com>
 668
 669         PR other/55312
 670         * configure.ac: Only add -Werror if building a target library.
 671         * configure: Rebuild.
 672
 673 2012-11-12  Ian Lance Taylor  <iant@google.com>
 674             Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 675             Gerald Pfeifer  <gerald@pfeifer.com>
 676
 677         * configure.ac: Check for getexecname.
 678         * fileline.c: #include <errno.h>.  Define getexecname if not
 679         available.
 680         (fileline_initialize): Try to find the executable in a few
 681         different ways.
 682         * print.c (error_callback): Only print the filename if it came
 683         from the backtrace state.
 684         * configure, config.h.in: Rebuild.
 685
 686 2012-10-29  Ian Lance Taylor  <iant@google.com>
 687
 688         * mmap.c (backtrace_vector_release): Correct last patch: add
 689         aligned, not size.
 690
 691 2012-10-29  Ian Lance Taylor  <iant@google.com>
 692
 693         * mmap.c (backtrace_vector_release): Make sure freed block is
 694         aligned on 8-byte boundary.
 695
 696 2012-10-26  Ian Lance Taylor  <iant@google.com>
 697
 698         PR other/55087
 699         * posix.c (backtrace_open): Add does_not_exist parameter.
 700         * elf.c (phdr_callback): Do not warn if shared library could not
 701         be opened.
 702         * fileline.c (fileline_initialize): Update calls to
 703         backtrace_open.
 704         * internal.h (backtrace_open): Update declaration.
 705
 706 2012-10-26  Jack Howarth  <howarth@bromo.med.uc.edu>
 707
 708         PR target/55061
 709         * configure.ac: Check for _Unwind_GetIPInfo function declaration.
 710         * configure: Regenerate.
 711
 712 2012-10-24  Ian Lance Taylor  <iant@google.com>
 713
 714         PR target/55061
 715         * configure.ac: Check whether -funwind-tables option works.
 716         * configure: Rebuild.
 717
 718 2012-10-11  Ian Lance Taylor  <iant@google.com>
 719
 720         * configure.ac: Do not use dl_iterate_phdr on Solaris 10.
 721         * configure: Rebuild.
 722
 723 2012-10-10  Ian Lance Taylor  <iant@google.com>
 724
 725         * elf.c: Rename all Elf typedefs to start with b_elf, and be all
 726         lower case.
 727
 728 2012-10-10  Hans-Peter Nilsson  <hp@bitrange.com>
 729
 730         * elf.c (elf_add_syminfo_data): Add casts to avoid warning.
 731
 732 2012-10-09  Ian Lance Taylor  <iant@google.com>
 733
 734         * dwarf.c (dwarf_fileline): Add cast to avoid warning.
 735         (backtrace_dwarf_add): Likewise.
 736
 737 2012-10-09  Ian Lance Taylor  <iant@google.com>
 738
 739         Add support for tracing through shared libraries.
 740         * configure.ac: Check for link.h and dl_iterate_phdr.
 741         * elf.c: #include <link.h> if system has dl_iterate_phdr.  #undef
 742         ELF macros before #defining them.
 743         (dl_phdr_info, dl_iterate_phdr): Define if system does not have
 744         dl_iterate_phdr.
 745         (struct elf_syminfo_data): Add next field.
 746         (elf_initialize_syminfo): Initialize next field.
 747         (elf_add_syminfo_data): New static function.
 748         (elf_add): New static function, broken out of
 749         backtrace_initialize.  Call backtrace_dwarf_add instead of
 750         backtrace_dwarf_initialize.
 751         (struct phdr_data): Define.
 752         (phdr_callback): New static function.
 753         (backtrace_initialize): Call elf_add.
 754         * dwarf.c (struct dwarf_data): Add next and base_address fields.
 755         (add_unit_addr): Add base_address parameter.  Change all callers.
 756         (add_unit_ranges, build_address_map): Likewise.
 757         (add_line): Add ddata parameter.  Change all callers.
 758         (read_line_program, add_function_range): Likewise.
 759         (dwarf_lookup_pc): New static function, broken out of
 760         dwarf_fileline.
 761         (dwarf_fileline): Call dwarf_lookup_pc.
 762         (build_dwarf_data): New static function.
 763         (backtrace_dwarf_add): New function.
 764         (backtrace_dwarf_initialize): Remove.
 765         * internal.h (backtrace_dwarf_initialize): Don't declare.
 766         (backtrace_dwarf_add): Declare.
 767         * configure, config.h.in: Rebuild.
 768
 769 2012-10-04  Gerald Pfeifer  <gerald@pfeifer.com>
 770
 771         * btest.c (f23): Avoid uninitialized variable warning.
 772
 773 2012-10-04  Ian Lance Taylor  <iant@google.com>
 774
 775         * dwarf.c: If the system header files do not declare strnlen,
 776         provide our own version.
 777
 778 2012-10-03  Ian Lance Taylor  <iant@google.com>
 779
 780         * dwarf.c (read_uleb128): Fix overflow test.
 781         (read_sleb128): Likewise.
 782         (build_address_map): Don't change unit_buf.start.
 783
 784 2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
 785
 786         PR other/54761
 787         * configure.ac (EXTRA_FLAGS): New.
 788         * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
 789         * configure, Makefile.in: Regenerate.
 790
 791 2012-09-29  Ian Lance Taylor  <iant@google.com>
 792
 793         PR other/54749
 794         * fileline.c (fileline_initialize): Pass errnum as -1 when
 795         reporting that we could not read executable information after a
 796         previous failure.
 797
 798 2012-09-27  Ian Lance Taylor  <iant@google.com>
 799
 800         PR bootstrap/54732
 801         * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE.
 802         * Makefile.am: Add dependencies for all objects.
 803         * configure, aclocal.m4, Makefile.in: Rebuild.
 804
 805 2012-09-27  Ian Lance Taylor  <iant@google.com>
 806
 807         PR other/54726
 808         * elf.c (backtrace_initialize): Set *fileln_fn, not
 809         state->fileln_fn.
 810
 811 2012-09-19  Ian Lance Taylor  <iant@google.com>
 812
 813         * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled
 814         as a target library.
 815         * configure: Rebuild.
 816
 817 2012-09-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 818             Ian Lance Taylor  <iant@google.com>
 819
 820         * configure.ac (GCC_HEADER_STDINT): Invoke.
 821         * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
 822         * btest.c: Don't include <stdint.h>.
 823         * dwarf.c: Likewise.
 824         * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.
 825
 826 2012-09-18  Ian Lance Taylor  <iant@google.com>
 827
 828         PR bootstrap/54623
 829         * Makefile.am (AM_CPPFLAGS): Define.
 830         (AM_CFLAGS): Remove -I options.
 831         * Makefile.in: Rebuild.
 832
 833 2012-09-18  Ian Lance Taylor  <iant@google.com>
 834
 835         * posix.c (O_BINARY): Define if not defined.
 836         (backtrace_open): Pass O_BINARY to open.  Only call fcntl if
 837         HAVE_FCNTL is defined.
 838         * configure.ac: Test for the fcntl function.
 839         * configure, config.h.in: Rebuild.
 840
 841 2012-09-18  Ian Lance Taylor  <iant@google.com>
 842
 843         * btest.c (test1, test2, test3, test4): Add the unused attribute.
 844
 845 2012-09-18  Ian Lance Taylor  <iant@google.com>
 846
 847         * dwarf.c: Correct test of HAVE_DECL_STRNLEN.
 848
 849 2012-09-18  Ian Lance Taylor  <iant@google.com>
 850
 851         * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS.
 852         * mmapio.c: Don't define _GNU_SOURCE.
 853         * configure, config.h.in: Rebuild.
 854
 855 2012-09-18  Ian Lance Taylor  <iant@google.com>
 856
 857         * configure.ac: Check whether strnlen is declared.
 858         * dwarf.c: Declare strnlen if not declared.
 859         * configure, config.h.in: Rebuild.
 860
 861 2012-09-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 862
 863         * fileline.c: Include <stdlib.h>.
 864         * mmap.c: Likewise.
 865
 866 2012-09-17  Ian Lance Taylor  <iant@google.com>
 867
 868         PR bootstrap/54611
 869         * nounwind.c (backtrace_full): Rename from backtrace.  Add state
 870         parameter.
 871
 872 2012-09-17  Gerald Pfeifer  <gerald@pfeifer.com>
 873
 874         PR bootstrap/54611
 875         * nounwind.c (backtrace_simple): Add state parameter.
 876
 877 2012-09-17  Ian Lance Taylor  <iant@google.com>
 878
 879         PR bootstrap/54609
 880         * unknown.c (unknown_fileline): Add state parameter, remove
 881         fileline_data parameter, name error_callback parameter.
 882         (backtrace_initialize): Add state parameter.
 883
 884 2012-09-17  Ian Lance Taylor  <iant@google.com>
 885
 886         * Initial implementation.
 887 \f
 888 Copyright (C) 2012-2018 Free Software Foundation, Inc.
 889
 890 Copying and distribution of this file, with or without modification,
 891 are permitted in any medium without royalty provided the copyright
 892 notice and this notice are preserved.