libbacktrace/ChangeLog

   1 2018-06-21 Denis Khalikov <d.khalikov@partner.samsung.com>
   2
   3         PR other/86198
   4         * elf.c (elf_add): Increase ".note.gnu.build-id" section size
   5         checking up to 36 bytes.
   6
   7 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
   8
   9         * configure: Regenerated.
  10
  11 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
  12
  13         * configure: Regenerated.
  14
  15 2018-04-17  Ian Lance Taylor  <iant@golang.org>
  16
  17         * backtrace.c: Revert last two changes.  Don't call mmap
  18         directly.
  19
  20 2018-04-17  Ian Lance Taylor  <iant@golang.org>
  21
  22         * backtrace.c: Include backtrace-supported.h before checking
  23         BACKTRACE_USES_MALLOC.
  24
  25 2018-04-17  Ian Lance Taylor  <iant@golang.org>
  26
  27         * backtrace.c (backtrace_full): When testing whether we can
  28         allocate memory, call mmap directly, and munmap the memory.
  29
  30 2018-04-04  Jakub Jelinek  <jakub@redhat.com>
  31
  32         PR other/85161
  33         * elf.c (elf_zlib_fetch): Fix up predefined macro names in test for
  34         big endian, only use 32-bit loads if endianity macros are predefined
  35         and indicate big or little endian.
  36
  37 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
  38
  39         PR target/84148
  40         * configure: Regenerate.
  41
  42 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
  43
  44         PR other/82368
  45         * elf.c (SHT_PROGBITS): Undefine and define.
  46
  47 2018-02-14  Jakub Jelinek  <jakub@redhat.com>
  48
  49         PR other/82368
  50         * elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define.
  51         (struct elf_ppc64_opd_data): New type.
  52         (elf_initialize_syminfo): Add opd argument, handle symbols
  53         pointing into the PowerPC64 ELFv1 .opd section.
  54         (elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer
  55         to structure with .opd data to elf_initialize_syminfo.
  56
  57 2018-01-31  Ian Lance Taylor  <iant@golang.org>
  58
  59         * elf.c (elf_add): Close descriptor if we use a debugfile.
  60         * btest.c (check_open_files): New static function.
  61         (main): Call check_open_files.
  62
  63 2018-01-25  Ian Lance Taylor  <iant@golang.org>
  64
  65         * elf.c (elf_open_debugfile_by_debuglink): Don't check CRC if the
  66         desired CRC is zero.
  67         (elf_add): Don't clear *found_sym and *found_dwarf if debuginfo.
  68
  69 2018-01-25  Ian Lance Taylor  <iant@golang.org>
  70
  71         * pecoff.c (coff_add): Only release syms_view if it is valid.
  72
  73 2018-01-25  Ian Lance Taylor  <iant@golang.org>
  74
  75         * pecoff.c (coff_add): Another memcpy -> coff_read4 fix.
  76
  77 2018-01-24  Ian Lance Taylor  <iant@golang.org>
  78
  79         * pecoff.c (coff_add): Use coff_read4, not memcpy.
  80
  81 2018-01-24  Ian Lance Taylor  <iant@golang.org>
  82
  83         PR other/68239
  84         * mmap.c (backtrace_free_locked): Don't put more than 16 entries
  85         on the free list.
  86
  87 2018-01-19  Tony Reix  <tony.reix@atos.net>
  88
  89         * xcoff.c (xcoff_incl_compare): New function.
  90         (xcoff_incl_search): New function.
  91         (xcoff_process_linenos): Use bsearch to find include file.
  92         (xcoff_initialize_fileline): Sort include file information.
  93
  94 2018-01-16  Ian Lance Taylor  <iant@golang.org>
  95
  96         * elf.c (codes) [GENERATE_FIXED_HUFFMAN_TABLE]: Fix size to be
  97         288.
  98         (main) [GENERATE_FIXED_HUFFMAN_TABLE]: Pass 288 to
  99         elf_zlib_inflate_table.  Generate elf_zlib_default_dist_table.
 100         (elf_zlib_default_table): Update.
 101         (elf_zlib_default_dist_table): New static array.
 102         (elf_zlib_inflate): Use elf_zlib_default_dist_table for dist table
 103         for block type 1.
 104         * ztest.c (struct zlib_test): Add uncompressed_len.
 105         (tests): Initialize uncompressed_len field.  Add new test case.
 106         (test_samples): Use uncompressed_len field.
 107
 108 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
 109
 110         Update copyright years.
 111
 112 2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 113
 114         * configure.ac: Add CET_FLAGS to EXTRA_FLAGS.
 115         * aclocal.m4: Regenerate.
 116         * Makefile.in: Likewise.
 117         * configure: Likewise.
 118
 119 2017-10-06  Ian Lance Taylor  <iant@golang.org>
 120
 121         * ztest.c (test_large): Pass unsigned long *, not size_t *, to
 122         zlib uncompress function.
 123
 124 2017-10-05  Ian Lance Taylor  <iant@golang.org>
 125
 126         * elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
 127         Read a four byte integer.
 128         (elf_zlib_inflate): Change val to uint64_t.  Align pin to a 32-bit
 129         boundary before ever calling elf_zlib_fetch.
 130         * ztest.c (test_large): Simplify print statements a bit.
 131
 132 2017-10-02  Ian Lance Taylor  <iant@golang.org>
 133
 134         * ztest.c: #include <errno.h>.
 135         (TEST_TIMING): Don't define, don't test.
 136         (xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME.
 137         (clockid_t, clock_gettime, CLOCK_REALTIME): Likewise.
 138         (ZLIB_CLOCK_GETTIME_ARG): Define.
 139         * configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK.
 140         * Makefile.am: Likewise.
 141         * configure, Makefile.in: Rebuild.
 142
 143 2017-10-02  Thomas Schwinge  <thomas@codesourcery.com>
 144
 145         PR other/67165
 146         * Makefile.am: Append the content of clock_gettime_link to
 147         ztest_LDADD.
 148         * configure.ac: Test for the case that clock_gettime is in librt.
 149         * Makefile.in: Regenerate.
 150         * configure: Likewise.
 151
 152         PR other/67165
 153         * configure.ac: Check for clock_gettime.
 154         * config.h.in: Regenerate.
 155         * configure: Likewise.
 156         * ztest.c (average_time, test_large): Conditionalize test timing
 157         on clock_gettime availability.
 158
 159 2017-09-29  Tony Reix  <tony.reix@atos.net>
 160
 161         * xcoff.c: Initial support for DWARF debug sections in XCOFF.
 162         (STYP_DWARF, SSUBTYP_DW*): Define.
 163         (enum dwarf_section): Define.
 164         (struct dwsect_info): Define.
 165         (xcoff_add): Look for DWARF sections, pass them to
 166         backtrace_dwarf_add.
 167
 168 2017-09-28  Ian Lance Taylor  <iant@golang.org>
 169
 170         PR other/67165
 171         * elf.c (__builtin_prefetch): Define if not __GNUC__.
 172         (unlikely): Define.
 173         (SHF_UNCOMPRESSED, ELFCOMPRESS_ZLIB): Define.
 174         (b_elf_chdr): Define type.
 175         (enum debug_section): Add ZDEBUG_xxx values.
 176         (debug_section_names): Add names for new sections.
 177         (struct debug_section_info): Add compressed field.
 178         (elf_zlib_failed, elf_zlib_fetch): New static functions.
 179         (HUFFMAN_TABLE_SIZE, HUFFMAN_VALUE_MASK): Define.
 180         (HUFFMAN_BITS_SHIFT, HUFFMAN_BITS_MASK): Define.
 181         (HUFFMAN_SECONDARY_SHIFT): Define.
 182         (ZDEBUG_TABLE_SIZE): Define.
 183         (ZDEBUG_TABLE_CODELEN_OFFSET, ZDEBUG_TABLE_WORK_OFFSET): Define.
 184         (final_next_secondary): New static variable if
 185         BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE.
 186         (elf_zlib_inflate_table): New static function.
 187         (BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE): If define, define main
 188         function to produce fixed Huffman table.
 189         (elf_zlib_default_table): New static variable.
 190         (elf_zlib_inflate): New static function.
 191         (elf_zlib_verify_checksum): Likewise.
 192         (elf_zlib_inflate_and_verify): Likewise.
 193         (elf_uncompress_zdebug): Likewise.
 194         (elf_uncompress_chdr): Likewise.
 195         (backtrace_uncompress_zdebug): New extern function.
 196         (elf_add): Look for .zdebug sections and SHF_COMPRESSED debug
 197         sections, and uncompress them.
 198         * internal.h (backtrace_compress_zdebug): Declare.
 199         * ztest.c: New file.
 200         * configure.ac: Check for -lz and check whether the linker
 201         supports --compress-debug-sections.
 202         * Makefile.am (ztest_SOURCES): New variable.
 203         (ztest_CFLAGS, ztest_LDADD): New variables.
 204         (check_PROGRAMS): Add ztest.
 205         (ctestg_SOURCES): New variable.
 206         (ctestg_CFLAGS, ctestg_LDFLAGS, ctestg_LDADD): New variables.
 207         (ctesta_SOURCES): New variable.
 208         (ctesta_CFLAGS, ctesta_LDFLAGS, ctesta_LDADD): New variables.
 209         (check_PROGRAMS): Add ctestg and ctesta.
 210         * configure, config.h.in, Makefile.in: Rebuild.
 211
 212 2017-09-22  Ian Lance Taylor  <iant@golang.org>
 213
 214         PR sanitizer/77631
 215         * configure.ac: Check for lstat and readlink.
 216         * elf.c (lstat, readlink): Provide dummy versions if real versions
 217         are not available.
 218         * configure, config.h.in: Rebuild.
 219
 220 2017-09-21  Ian Lance Taylor  <iant@google.com>
 221
 222         PR go/82284
 223         * elf.c (backtrace_initialize): Set pd.exe_filename.
 224
 225 2017-09-20  Ian Lance Taylor  <iant@golang.org>
 226             Denis Khalikov  <d.khalikov@partner.samsung.com>
 227
 228         PR sanitizer/77631
 229         Support for external debug info.
 230         * elf.c: Include <errno.h>, <sys/stat.h>, <unistd.h>.
 231         (S_ISLNK): Define if not defined.
 232         (xstrnlen): Define if strnlen is not available.
 233         (b_elf_note): Define type.
 234         (NT_GNU_BUILD_ID): Define macro.
 235         (elf_crc32, elf_crc32_file): New static functions.
 236         (elf_is_symlink, elf_readlink): New static functions.
 237         (elf_open_debugfile_by_buildid): New static function.
 238         (elf_try_debugfile): New static function.
 239         (elf_find_debugfile_by_debuglink): New static function.
 240         (elf_open_debugfile_by_debuglink): New static function.
 241         (elf_add): Add filename and debuginfo parameters.  Adjust all
 242         callers.  Look for external debug info notes, and try to fetch
 243         debug info from external file.
 244         (struct phdr_data): Add exe_filename field.
 245         (phdr_callback): Pass filename to elf_add.
 246         (backtrace_initialize): Add filename parameter.
 247         * internal.h (backtrace_initialize): Add filename parameter.
 248         * fileline.c (fileline_initialize): Pass filename to
 249         backtrace_initialize.
 250         * pecoff.c (fileline_initialize): Add unused filename parameter.
 251         * unknown.c (fileline_initialize): Likewise.
 252         * xcoff.c (fileline_initialize): Likewise.
 253         * configure.ac: Check for objcopy --add-gnu-debuglink.
 254         * Makefile.am (dtest): New test target.
 255         * configure, Makefile.in: Rebuild.
 256
 257 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
 258
 259         PR other/81096
 260         * Makefile.am (ttest_CFLAGS): Add $(AM_CFLAGS)
 261         * Makefile.in: Regenerate.
 262
 263 2017-09-12  Steve Ellcey  <sellcey@cavium.com>
 264
 265         PR other/81096
 266         * libbacktrace/Makefile.in
 267         (HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_CFLAGS): Add $(AM_CFLAGS)
 268
 269 2017-08-02  David Edelsohn  <dje.gcc@gmail.com>
 270
 271         PR bootstrap/81638
 272         * xcoff.c (xcoff_process_linenos): Initialize incl to NULL.
 273
 274 2017-07-28  Tony Reix  <tony.reix@atos.net>
 275
 276         * xcoff.c: Don't leak a file descriptor if an archive is malformed.
 277
 278 2017-07-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 279
 280         * fileline.c (fileline_initialize): Print pid_t as long.
 281
 282 2017-07-26  Tony Reix  <tony.reix@atos.net>
 283
 284         * configure.ac: Check for XCOFF32/XCOFF64.  Check for loadquery.
 285         * filetype.awk: Separate AIX XCOFF32 and XCOFF64.
 286         * xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats.
 287         * configure, config.h.in: Regenerate.
 288
 289 2017-07-21  Tony Reix  <tony.reix@atos.net>
 290
 291         * filetype.awk: Add AIX XCOFF type detection.
 292         * configure.ac: Recognize xcoff format.
 293         * Makefile.am (FORMAT_FILES): Add xcoff.c.
 294         * fileline.c: Include <unistd.h>.
 295         (fileline_initialize): Add case for AIX procfs.
 296         * xcoff.c: New file.
 297         * configure, Makefile.in: Rebuild.
 298
 299 2017-06-21  Richard Biener  <rguenther@suse.de>
 300
 301         * configure.ac: Add AC_SYS_LARGEFILE.
 302         * config.h.in: Regenerate.
 303         * configure: Likewise.
 304
 305 2017-06-11  Ian Lance Taylor  <iant@golang.org>
 306
 307         * elf.c (backtrace_initialize): Always set *fileline_fn.
 308         * ttest.c: New file.
 309         * btest.c: Move support functions into testlib.c.  Change calls to
 310         check to pass file name.
 311         * testlib.c: New file, copied from (part of) btest.c.
 312         * testlib.h: New file, declarations for testlib.c.
 313         * edtest.c: Use testlib.h and testlib.c.
 314         * configure.ac: Test for -pthread, set HAVE_PTHREAD conditional.
 315         * Makefile.am (btest_SOURCES): Add testlib.c.
 316         (edtest_SOURCES): Likewise.
 317         (CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD.
 318         (ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define.
 319         * configure, Makefile.in: Rebuild.
 320
 321 2017-05-19  Than McIntosh  <thanm@google.com>
 322
 323         * dwarf.c (free_line_header): Don't free dirs if dirs_count == 0.
 324         (read_line_header): Don't allocate dirs if dirs_count == 0.
 325         * edtest.c: New file.
 326         * edtest2.c: New file.
 327         * Makefile.am (edtest_SOURCES, edtest_LDADD): Define.
 328         (check_PROGRAMS): Add edtest.
 329         (edtest2_build.c, gen_edtest2_build): New targets.
 330         * Makefile.in: Rebuild.
 331
 332 2017-03-08  Sam Thursfield  <sam.thursfield@codethink.co.uk>
 333
 334         * btest.c (test5): Replace #ifdef guard with 'unused' attribute
 335         to fix compile warning when BACKTRACE_SUPPORTED isn't defined.
 336
 337 2017-01-01  Jakub Jelinek  <jakub@redhat.com>
 338
 339         Update copyright years.
 340
 341 2016-11-15  Matthias Klose  <doko@ubuntu.com>
 342
 343         * configure: Regenerate.
 344
 345 2016-09-11  Carlos Liam  <carlos@aarzee.me>
 346
 347         * all: Remove meaningless trailing whitespace.
 348
 349 2016-05-18  Uros Bizjak  <ubizjak@gmail.com>
 350
 351         PR target/71161
 352         * elf.c (phdr_callback) [__i386__]: Add
 353         __attribute__((__force_align_arg_pointer__)).
 354
 355 2016-03-02  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>
 356
 357         * elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
 358         avoid possible crash.
 359         (elf_add): Don't set *fileline_fn to elf_nodebug value in case of
 360         missing debug info anymore.
 361
 362 2016-02-06  John David Anglin  <danglin@gcc.gnu.org>
 363
 364         * mmap.c (MAP_FAILED): Define if not defined.
 365
 366 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
 367
 368         Update copyright years.
 369
 370 2015-12-18  Andris Pavenis  <andris.pavenis@iki.fi>
 371
 372         * configure.ac: Specify that DJGPP do not have mmap
 373         even when sys/mman.h exists.
 374         * configure: Regenerate
 375
 376 2015-12-09  John David Anglin  <danglin@gcc.gnu.org>
 377
 378         PR libgfortran/68115
 379         * configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
 380         * configure: Regenerate.
 381         * elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
 382         to void.
 383
 384 2015-09-17  Ian Lance Taylor  <iant@google.com>
 385
 386         * posix.c (backtrace_open): Cast second argument of open() to int.
 387
 388 2015-09-11  Ian Lance Taylor  <iant@google.com>
 389
 390         * Makefile.am (backtrace.lo): Depend on internal.h.
 391         (sort.lo, stest.lo): Add explicit dependencies.
 392         * Makefile.in: Rebuild.
 393
 394 2015-09-09  Hans-Peter Nilsson  <hp@axis.com>
 395
 396         * backtrace.c: #include <sys/types.h>.
 397
 398 2015-09-08  Ian Lance Taylor  <iant@google.com>
 399
 400         PR other/67457
 401         * backtrace.c: #include "internal.h".
 402         (struct backtrace_data): Add can_alloc field.
 403         (unwind): If can_alloc is false, don't try to get file/line
 404         information.
 405         (backtrace_full): Set can_alloc field in bdata.
 406         * alloc.c (backtrace_alloc): Don't call error_callback if it is
 407         NULL.
 408         * mmap.c (backtrace_alloc): Likewise.
 409         * internal.h: Update comments for backtrace_alloc and
 410         backtrace_free.
 411
 412 2015-09-08  Ian Lance Taylor  <iant@google.com>
 413
 414         PR other/67457
 415         * mmap.c (backtrace_alloc): Correct test for mmap failure.
 416
 417 2015-08-31  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 418
 419         * configure.ac: For spu-*-* targets, set have_fcntl to no.
 420         * configure: Regenerate.
 421
 422 2015-08-27  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 423
 424         * configure.ac: Remove [disable-shared] argument to LT_INIT.
 425         Remove setting PIC_FLAG when building as target library.
 426         * configure: Regenerate.
 427
 428 2015-08-26  Hans-Peter Nilsson  <hp@axis.com>
 429
 430         * configure.ac: Only compile with -fPIC if the target
 431         supports it.
 432         * configure: Regenerate.
 433
 434 2015-08-24  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 435
 436         * configure.ac: Set have_mmap to no on spu-*-* targets.
 437         * configure: Regenerate.
 438
 439 2015-08-13  Ian Lance Taylor  <iant@google.com>
 440
 441         * dwarf.c (read_function_entry): Add vec_inlined parameter.
 442         Change all callers.
 443
 444 2015-06-11  Martin Sebor  <msebor@redhat.com>
 445
 446         PR sanitizer/65479
 447         * dwarf.c (struct line): Add new field idx.
 448         (line_compare): Use it.
 449         (add_line): Set it.
 450         (read_line_info): Reset it.
 451
 452 2015-05-29  Tristan Gingold  <gingold@adacore.com>
 453
 454         * pecoff.c: New file.
 455         * Makefile.am (FORMAT_FILES): Add pecoff.c and dependencies.
 456         * Makefile.in: Regenerate.
 457         * filetype.awk: Detect pecoff.
 458         * configure.ac: Define BACKTRACE_SUPPORTS_DATA on elf platforms.
 459         Add pecoff.
 460         * btest.c (test5): Test enabled only if BACKTRACE_SUPPORTS_DATA is
 461         true.
 462         * backtrace-supported.h.in (BACKTRACE_SUPPORTS_DATA): Define.
 463         * configure: Regenerate.
 464         * pecoff.c: New file.
 465
 466 2015-05-13  Michael Haubenwallner  <michael.haubenwallner@ssi-schaefer.com>
 467
 468         * Makefile.in: Regenerated with automake-1.11.6.
 469         * aclocal.m4: Likewise.
 470         * configure: Likewise.
 471
 472 2015-01-24  Matthias Klose  <doko@ubuntu.com>
 473
 474         * configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC.
 475         * configure: Regenerate.
 476
 477 2015-01-05  Jakub Jelinek  <jakub@redhat.com>
 478
 479         Update copyright years.
 480
 481 2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>
 482
 483         PR bootstrap/63784
 484         * configure: Regenerated.
 485
 486 2014-11-11  David Malcolm  <dmalcolm@redhat.com>
 487
 488         * ChangeLog.jit: New.
 489
 490 2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 491
 492         PR target/63610
 493         * configure: Regenerate.
 494
 495 2014-10-23  Ian Lance Taylor  <iant@google.com>
 496
 497         * internal.h (backtrace_atomic_load_pointer) [no atomic or sync]:
 498         Fix to return void *.
 499
 500 2014-05-08  Ian Lance Taylor  <iant@google.com>
 501
 502         * mmap.c (backtrace_free): If freeing a large aligned block of
 503         memory, call munmap rather than holding onto it.
 504         (backtrace_vector_grow): When growing a vector, double the number
 505         of pages requested.  When releasing the old version of a grown
 506         vector, pass the correct size to backtrace_free.
 507
 508 2014-03-07  Ian Lance Taylor  <iant@google.com>
 509
 510         * sort.c (backtrace_qsort): Use middle element as pivot.
 511
 512 2014-03-06  Ian Lance Taylor  <iant@google.com>
 513
 514         * sort.c: New file.
 515         * stest.c: New file.
 516         * internal.h (backtrace_qsort): Declare.
 517         * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort.
 518         (read_line_info, read_function_entry): Likewise.
 519         (read_function_info, build_dwarf_data): Likewise.
 520         * elf.c (elf_initialize_syminfo): Likewise.
 521         * Makefile.am (libbacktrace_la_SOURCES): Add sort.c.
 522         (stest_SOURCES, stest_LDADD): Define.
 523         (check_PROGRAMS): Add stest.
 524
 525 2014-02-07  Misty De Meo  <misty@brew.sh>
 526
 527         PR target/58710
 528         * configure.ac: Use AC_LINK_IFELSE in check for
 529         _Unwind_GetIPInfo.
 530         * configure: Regenerate.
 531
 532 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 533
 534         Update copyright years
 535
 536 2013-12-06  Jakub Jelinek  <jakub@redhat.com>
 537
 538         * elf.c (ET_DYN): Undefine and define again.
 539         (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN,
 540         return early -1 without closing the descriptor.
 541         (struct phdr_data): Add exe_descriptor.
 542         (phdr_callback): If pd->exe_descriptor is not -1, for very first
 543         call if dlpi_name is NULL just call elf_add with the exe_descriptor,
 544         otherwise backtrace_close the exe_descriptor if not -1.  Adjust
 545         call to elf_add.
 546         (backtrace_initialize): Adjust call to elf_add.  If it returns
 547         -1, set pd.exe_descriptor to descriptor, otherwise set it to -1.
 548
 549 2013-12-05  Ian Lance Taylor  <iant@google.com>
 550
 551         * alloc.c (backtrace_vector_finish): Add error_callback and data
 552         parameters.  Call backtrace_vector_release.  Return address base.
 553         * mmap.c (backtrace_vector_finish): Add error_callback and data
 554         parameters.  Return address base.
 555         * dwarf.c (read_function_info): Get new address base from
 556         backtrace_vector_finish.
 557         * internal.h (backtrace_vector_finish): Update declaration.
 558
 559 2013-11-27  Ian Lance Taylor  <iant@google.com>
 560
 561         * dwarf.c (find_address_ranges): New static function, broken out
 562         of build_address_map.
 563         (build_address_map): Call it.
 564         * btest.c (check): Check for missing filename or function, rather
 565         than crashing.
 566         (f3): Check that enough frames were returned.
 567
 568 2013-11-19  Jakub Jelinek  <jakub@redhat.com>
 569
 570         * backtrace.h (backtrace_syminfo_callback): Add symsize argument.
 571         * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as
 572         last argument.
 573         * btest.c (struct symdata): Add size field.
 574         (callback_three): Add symsize argument.  Copy it to the data->size
 575         field.
 576         (f23): Set symdata.size to 0.
 577         (test5): Likewise.  If sizeof (int) > 1, lookup address of
 578         ((uintptr_t) &global) + 1.  Verify symdata.val and symdata.size
 579         values.
 580
 581         * atomic.c: Include sys/types.h.
 582
 583 2013-11-18  Ian Lance Taylor  <iant@google.com>
 584
 585         * configure.ac: Check for support of __atomic extensions.
 586         * internal.h: Declare or #define atomic functions for use in
 587         backtrace code.
 588         * atomic.c: New file.
 589         * dwarf.c (dwarf_lookup_pc): Use atomic functions.
 590         (dwarf_fileline, backtrace_dwarf_add): Likewise.
 591         * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise.
 592         (backtrace_initialize): Likewise.
 593         * fileline.c (fileline_initialize): Likewise.
 594         * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c.
 595         * configure, config.h.in, Makefile.in: Rebuild.
 596
 597 2013-11-18  Jakub Jelinek  <jakub@redhat.com>
 598
 599         * elf.c (SHN_UNDEF): Define.
 600         (elf_initialize_syminfo): Add base_address argument.  Ignore symbols
 601         with st_shndx == SHN_UNDEF.  Add base_address to address fields.
 602         (elf_add): Adjust caller.
 603
 604         * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally.
 605
 606 2013-11-16  Ian Lance Taylor  <iant@google.com>
 607
 608         * backtrace.h (backtrace_create_state): Correct comment about
 609         threading.
 610
 611 2013-11-15  Ian Lance Taylor  <iant@google.com>
 612
 613         * backtrace.h (backtrace_syminfo): Update comment and parameter
 614         name to take any address, not just a PC value.
 615         * elf.c (STT_OBJECT): Define.
 616         (elf_nosyms): Rename parameter pc to addr.
 617         (elf_symbol_search): Rename local variable pc to addr.
 618         (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
 619         (elf_syminfo): Rename parameter pc to addr.
 620         * btest.c (global): New global variable.
 621         (test5): New test.
 622         (main): Call test5.
 623
 624 2013-10-17  Ian Lance Taylor  <iant@google.com>
 625
 626         * elf.c (elf_add): Don't get the wrong offsets if a debug section
 627         is missing.
 628
 629 2013-10-15  David Malcolm  <dmalcolm@redhat.com>
 630
 631         * configure.ac: Add --enable-host-shared, setting up
 632         pre-existing PIC_FLAG variable within Makefile.am et al.
 633         * configure: Regenerate.
 634
 635 2013-09-20  Alan Modra  <amodra@gmail.com>
 636
 637         * configure: Regenerate.
 638
 639 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
 640
 641         * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
 642
 643 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
 644
 645         * elf.c (backtrace_initialize): Pass elf_fileline_fn to
 646         dl_iterate_phdr callbacks.
 647
 648 2013-03-25  Ian Lance Taylor  <iant@google.com>
 649
 650         * alloc.c: #include <sys/types.h>.
 651         * mmap.c: Likewise.
 652
 653 2013-01-31  Ian Lance Taylor  <iant@google.com>
 654
 655         * dwarf.c (read_function_info): Permit fvec parameter to be NULL.
 656         (dwarf_lookup_pc): Don't use ddata->fvec if threaded.
 657
 658 2013-01-25  Jakub Jelinek  <jakub@redhat.com>
 659
 660         PR other/56076
 661         * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir
 662         attribute was not seen.
 663
 664 2013-01-16  Ian Lance Taylor  <iant@google.com>
 665
 666         * dwarf.c (struct unit): Add filename and abs_filename fields.
 667         (build_address_map): Set new fields when reading unit.
 668         (dwarf_lookup_pc): If we don't find an entry in the line table,
 669         just return the main file name.
 670
 671 2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>
 672
 673         Update copyright years.
 674
 675 2013-01-01  Ian Lance Taylor  <iant@google.com>
 676
 677         PR bootstrap/54834
 678         * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I
 679         $(MULTIBUILDTOP)/../../gcc/include.
 680         * Makefile.in: Rebuild.
 681
 682 2013-01-01  Ian Lance Taylor  <iant@google.com>
 683
 684         PR other/55536
 685         * mmap.c (backtrace_alloc): Don't call sync functions if not
 686         threaded.
 687         (backtrace_free): Likewise.
 688
 689 2012-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 690
 691         * mmapio.c: Define MAP_FAILED if not defined.
 692
 693 2012-12-11  Jakub Jelinek  <jakub@redhat.com>
 694
 695         PR bootstrap/54926
 696         * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@.
 697         * configure.ac: If --with-target-subdir, add -frandom-seed=$@
 698         to EXTRA_FLAGS unconditionally, otherwise check whether the compiler
 699         accepts it.
 700         * Makefile.in: Regenerated.
 701         * configure: Regenerated.
 702
 703 2012-12-07  Jakub Jelinek  <jakub@redhat.com>
 704
 705         PR bootstrap/54926
 706         * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@.
 707         * Makefile.in: Regenerated.
 708
 709 2012-11-20  Ian Lance Taylor  <iant@google.com>
 710
 711         * dwarf.c (read_attribute): Always clear val.
 712
 713 2012-11-13  Ian Lance Taylor  <iant@google.com>
 714
 715         PR other/55312
 716         * configure.ac: Only add -Werror if building a target library.
 717         * configure: Rebuild.
 718
 719 2012-11-12  Ian Lance Taylor  <iant@google.com>
 720             Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 721             Gerald Pfeifer  <gerald@pfeifer.com>
 722
 723         * configure.ac: Check for getexecname.
 724         * fileline.c: #include <errno.h>.  Define getexecname if not
 725         available.
 726         (fileline_initialize): Try to find the executable in a few
 727         different ways.
 728         * print.c (error_callback): Only print the filename if it came
 729         from the backtrace state.
 730         * configure, config.h.in: Rebuild.
 731
 732 2012-10-29  Ian Lance Taylor  <iant@google.com>
 733
 734         * mmap.c (backtrace_vector_release): Correct last patch: add
 735         aligned, not size.
 736
 737 2012-10-29  Ian Lance Taylor  <iant@google.com>
 738
 739         * mmap.c (backtrace_vector_release): Make sure freed block is
 740         aligned on 8-byte boundary.
 741
 742 2012-10-26  Ian Lance Taylor  <iant@google.com>
 743
 744         PR other/55087
 745         * posix.c (backtrace_open): Add does_not_exist parameter.
 746         * elf.c (phdr_callback): Do not warn if shared library could not
 747         be opened.
 748         * fileline.c (fileline_initialize): Update calls to
 749         backtrace_open.
 750         * internal.h (backtrace_open): Update declaration.
 751
 752 2012-10-26  Jack Howarth  <howarth@bromo.med.uc.edu>
 753
 754         PR target/55061
 755         * configure.ac: Check for _Unwind_GetIPInfo function declaration.
 756         * configure: Regenerate.
 757
 758 2012-10-24  Ian Lance Taylor  <iant@google.com>
 759
 760         PR target/55061
 761         * configure.ac: Check whether -funwind-tables option works.
 762         * configure: Rebuild.
 763
 764 2012-10-11  Ian Lance Taylor  <iant@google.com>
 765
 766         * configure.ac: Do not use dl_iterate_phdr on Solaris 10.
 767         * configure: Rebuild.
 768
 769 2012-10-10  Ian Lance Taylor  <iant@google.com>
 770
 771         * elf.c: Rename all Elf typedefs to start with b_elf, and be all
 772         lower case.
 773
 774 2012-10-10  Hans-Peter Nilsson  <hp@bitrange.com>
 775
 776         * elf.c (elf_add_syminfo_data): Add casts to avoid warning.
 777
 778 2012-10-09  Ian Lance Taylor  <iant@google.com>
 779
 780         * dwarf.c (dwarf_fileline): Add cast to avoid warning.
 781         (backtrace_dwarf_add): Likewise.
 782
 783 2012-10-09  Ian Lance Taylor  <iant@google.com>
 784
 785         Add support for tracing through shared libraries.
 786         * configure.ac: Check for link.h and dl_iterate_phdr.
 787         * elf.c: #include <link.h> if system has dl_iterate_phdr.  #undef
 788         ELF macros before #defining them.
 789         (dl_phdr_info, dl_iterate_phdr): Define if system does not have
 790         dl_iterate_phdr.
 791         (struct elf_syminfo_data): Add next field.
 792         (elf_initialize_syminfo): Initialize next field.
 793         (elf_add_syminfo_data): New static function.
 794         (elf_add): New static function, broken out of
 795         backtrace_initialize.  Call backtrace_dwarf_add instead of
 796         backtrace_dwarf_initialize.
 797         (struct phdr_data): Define.
 798         (phdr_callback): New static function.
 799         (backtrace_initialize): Call elf_add.
 800         * dwarf.c (struct dwarf_data): Add next and base_address fields.
 801         (add_unit_addr): Add base_address parameter.  Change all callers.
 802         (add_unit_ranges, build_address_map): Likewise.
 803         (add_line): Add ddata parameter.  Change all callers.
 804         (read_line_program, add_function_range): Likewise.
 805         (dwarf_lookup_pc): New static function, broken out of
 806         dwarf_fileline.
 807         (dwarf_fileline): Call dwarf_lookup_pc.
 808         (build_dwarf_data): New static function.
 809         (backtrace_dwarf_add): New function.
 810         (backtrace_dwarf_initialize): Remove.
 811         * internal.h (backtrace_dwarf_initialize): Don't declare.
 812         (backtrace_dwarf_add): Declare.
 813         * configure, config.h.in: Rebuild.
 814
 815 2012-10-04  Gerald Pfeifer  <gerald@pfeifer.com>
 816
 817         * btest.c (f23): Avoid uninitialized variable warning.
 818
 819 2012-10-04  Ian Lance Taylor  <iant@google.com>
 820
 821         * dwarf.c: If the system header files do not declare strnlen,
 822         provide our own version.
 823
 824 2012-10-03  Ian Lance Taylor  <iant@google.com>
 825
 826         * dwarf.c (read_uleb128): Fix overflow test.
 827         (read_sleb128): Likewise.
 828         (build_address_map): Don't change unit_buf.start.
 829
 830 2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
 831
 832         PR other/54761
 833         * configure.ac (EXTRA_FLAGS): New.
 834         * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
 835         * configure, Makefile.in: Regenerate.
 836
 837 2012-09-29  Ian Lance Taylor  <iant@google.com>
 838
 839         PR other/54749
 840         * fileline.c (fileline_initialize): Pass errnum as -1 when
 841         reporting that we could not read executable information after a
 842         previous failure.
 843
 844 2012-09-27  Ian Lance Taylor  <iant@google.com>
 845
 846         PR bootstrap/54732
 847         * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE.
 848         * Makefile.am: Add dependencies for all objects.
 849         * configure, aclocal.m4, Makefile.in: Rebuild.
 850
 851 2012-09-27  Ian Lance Taylor  <iant@google.com>
 852
 853         PR other/54726
 854         * elf.c (backtrace_initialize): Set *fileln_fn, not
 855         state->fileln_fn.
 856
 857 2012-09-19  Ian Lance Taylor  <iant@google.com>
 858
 859         * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled
 860         as a target library.
 861         * configure: Rebuild.
 862
 863 2012-09-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 864             Ian Lance Taylor  <iant@google.com>
 865
 866         * configure.ac (GCC_HEADER_STDINT): Invoke.
 867         * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
 868         * btest.c: Don't include <stdint.h>.
 869         * dwarf.c: Likewise.
 870         * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.
 871
 872 2012-09-18  Ian Lance Taylor  <iant@google.com>
 873
 874         PR bootstrap/54623
 875         * Makefile.am (AM_CPPFLAGS): Define.
 876         (AM_CFLAGS): Remove -I options.
 877         * Makefile.in: Rebuild.
 878
 879 2012-09-18  Ian Lance Taylor  <iant@google.com>
 880
 881         * posix.c (O_BINARY): Define if not defined.
 882         (backtrace_open): Pass O_BINARY to open.  Only call fcntl if
 883         HAVE_FCNTL is defined.
 884         * configure.ac: Test for the fcntl function.
 885         * configure, config.h.in: Rebuild.
 886
 887 2012-09-18  Ian Lance Taylor  <iant@google.com>
 888
 889         * btest.c (test1, test2, test3, test4): Add the unused attribute.
 890
 891 2012-09-18  Ian Lance Taylor  <iant@google.com>
 892
 893         * dwarf.c: Correct test of HAVE_DECL_STRNLEN.
 894
 895 2012-09-18  Ian Lance Taylor  <iant@google.com>
 896
 897         * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS.
 898         * mmapio.c: Don't define _GNU_SOURCE.
 899         * configure, config.h.in: Rebuild.
 900
 901 2012-09-18  Ian Lance Taylor  <iant@google.com>
 902
 903         * configure.ac: Check whether strnlen is declared.
 904         * dwarf.c: Declare strnlen if not declared.
 905         * configure, config.h.in: Rebuild.
 906
 907 2012-09-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 908
 909         * fileline.c: Include <stdlib.h>.
 910         * mmap.c: Likewise.
 911
 912 2012-09-17  Ian Lance Taylor  <iant@google.com>
 913
 914         PR bootstrap/54611
 915         * nounwind.c (backtrace_full): Rename from backtrace.  Add state
 916         parameter.
 917
 918 2012-09-17  Gerald Pfeifer  <gerald@pfeifer.com>
 919
 920         PR bootstrap/54611
 921         * nounwind.c (backtrace_simple): Add state parameter.
 922
 923 2012-09-17  Ian Lance Taylor  <iant@google.com>
 924
 925         PR bootstrap/54609
 926         * unknown.c (unknown_fileline): Add state parameter, remove
 927         fileline_data parameter, name error_callback parameter.
 928         (backtrace_initialize): Add state parameter.
 929
 930 2012-09-17  Ian Lance Taylor  <iant@google.com>
 931
 932         * Initial implementation.
 933 \f
 934 Copyright (C) 2012-2018 Free Software Foundation, Inc.
 935
 936 Copying and distribution of this file, with or without modification,
 937 are permitted in any medium without royalty provided the copyright
 938 notice and this notice are preserved.