libbacktrace/ChangeLog

   1 2014-05-08  Ian Lance Taylor  <iant@google.com>
   2
   3         * mmap.c (backtrace_free): If freeing a large aligned block of
   4         memory, call munmap rather than holding onto it.
   5         (backtrace_vector_grow): When growing a vector, double the number
   6         of pages requested.  When releasing the old version of a grown
   7         vector, pass the correct size to backtrace_free.
   8
   9 2014-03-07  Ian Lance Taylor  <iant@google.com>
  10
  11         * sort.c (backtrace_qsort): Use middle element as pivot.
  12
  13 2014-03-06  Ian Lance Taylor  <iant@google.com>
  14
  15         * sort.c: New file.
  16         * stest.c: New file.
  17         * internal.h (backtrace_qsort): Declare.
  18         * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort.
  19         (read_line_info, read_function_entry): Likewise.
  20         (read_function_info, build_dwarf_data): Likewise.
  21         * elf.c (elf_initialize_syminfo): Likewise.
  22         * Makefile.am (libbacktrace_la_SOURCES): Add sort.c.
  23         (stest_SOURCES, stest_LDADD): Define.
  24         (check_PROGRAMS): Add stest.
  25
  26 2014-02-07  Misty De Meo  <misty@brew.sh>
  27
  28         PR target/58710
  29         * configure.ac: Use AC_LINK_IFELSE in check for
  30         _Unwind_GetIPInfo.
  31         * configure: Regenerate.
  32
  33 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
  34
  35         Update copyright years
  36
  37 2013-12-06  Jakub Jelinek  <jakub@redhat.com>
  38
  39         * elf.c (ET_DYN): Undefine and define again.
  40         (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN,
  41         return early -1 without closing the descriptor.
  42         (struct phdr_data): Add exe_descriptor.
  43         (phdr_callback): If pd->exe_descriptor is not -1, for very first
  44         call if dlpi_name is NULL just call elf_add with the exe_descriptor,
  45         otherwise backtrace_close the exe_descriptor if not -1.  Adjust
  46         call to elf_add.
  47         (backtrace_initialize): Adjust call to elf_add.  If it returns
  48         -1, set pd.exe_descriptor to descriptor, otherwise set it to -1.
  49
  50 2013-12-05  Ian Lance Taylor  <iant@google.com>
  51
  52         * alloc.c (backtrace_vector_finish): Add error_callback and data
  53         parameters.  Call backtrace_vector_release.  Return address base.
  54         * mmap.c (backtrace_vector_finish): Add error_callback and data
  55         parameters.  Return address base.
  56         * dwarf.c (read_function_info): Get new address base from
  57         backtrace_vector_finish.
  58         * internal.h (backtrace_vector_finish): Update declaration.
  59
  60 2013-11-27  Ian Lance Taylor  <iant@google.com>
  61
  62         * dwarf.c (find_address_ranges): New static function, broken out
  63         of build_address_map.
  64         (build_address_map): Call it.
  65         * btest.c (check): Check for missing filename or function, rather
  66         than crashing.
  67         (f3): Check that enough frames were returned.
  68
  69 2013-11-19  Jakub Jelinek  <jakub@redhat.com>
  70
  71         * backtrace.h (backtrace_syminfo_callback): Add symsize argument.
  72         * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as
  73         last argument.
  74         * btest.c (struct symdata): Add size field.
  75         (callback_three): Add symsize argument.  Copy it to the data->size
  76         field.
  77         (f23): Set symdata.size to 0.
  78         (test5): Likewise.  If sizeof (int) > 1, lookup address of
  79         ((uintptr_t) &global) + 1.  Verify symdata.val and symdata.size
  80         values.
  81
  82         * atomic.c: Include sys/types.h.
  83
  84 2013-11-18  Ian Lance Taylor  <iant@google.com>
  85
  86         * configure.ac: Check for support of __atomic extensions.
  87         * internal.h: Declare or #define atomic functions for use in
  88         backtrace code.
  89         * atomic.c: New file.
  90         * dwarf.c (dwarf_lookup_pc): Use atomic functions.
  91         (dwarf_fileline, backtrace_dwarf_add): Likewise.
  92         * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise.
  93         (backtrace_initialize): Likewise.
  94         * fileline.c (fileline_initialize): Likewise.
  95         * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c.
  96         * configure, config.h.in, Makefile.in: Rebuild.
  97
  98 2013-11-18  Jakub Jelinek  <jakub@redhat.com>
  99
 100         * elf.c (SHN_UNDEF): Define.
 101         (elf_initialize_syminfo): Add base_address argument.  Ignore symbols
 102         with st_shndx == SHN_UNDEF.  Add base_address to address fields.
 103         (elf_add): Adjust caller.
 104
 105         * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally.
 106
 107 2013-11-16  Ian Lance Taylor  <iant@google.com>
 108
 109         * backtrace.h (backtrace_create_state): Correct comment about
 110         threading.
 111
 112 2013-11-15  Ian Lance Taylor  <iant@google.com>
 113
 114         * backtrace.h (backtrace_syminfo): Update comment and parameter
 115         name to take any address, not just a PC value.
 116         * elf.c (STT_OBJECT): Define.
 117         (elf_nosyms): Rename parameter pc to addr.
 118         (elf_symbol_search): Rename local variable pc to addr.
 119         (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
 120         (elf_syminfo): Rename parameter pc to addr.
 121         * btest.c (global): New global variable.
 122         (test5): New test.
 123         (main): Call test5.
 124
 125 2013-10-17  Ian Lance Taylor  <iant@google.com>
 126
 127         * elf.c (elf_add): Don't get the wrong offsets if a debug section
 128         is missing.
 129
 130 2013-10-15  David Malcolm  <dmalcolm@redhat.com>
 131
 132         * configure.ac: Add --enable-host-shared, setting up
 133         pre-existing PIC_FLAG variable within Makefile.am et al.
 134         * configure: Regenerate.
 135
 136 2013-09-20  Alan Modra  <amodra@gmail.com>
 137
 138         * configure: Regenerate.
 139
 140 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
 141
 142         * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
 143
 144 2013-07-23  Alexander Monakov  <amonakov@ispras.ru>
 145
 146         * elf.c (backtrace_initialize): Pass elf_fileline_fn to
 147         dl_iterate_phdr callbacks.
 148
 149 2013-03-25  Ian Lance Taylor  <iant@google.com>
 150
 151         * alloc.c: #include <sys/types.h>.
 152         * mmap.c: Likewise.
 153
 154 2013-01-31  Ian Lance Taylor  <iant@google.com>
 155
 156         * dwarf.c (read_function_info): Permit fvec parameter to be NULL.
 157         (dwarf_lookup_pc): Don't use ddata->fvec if threaded.
 158
 159 2013-01-25  Jakub Jelinek  <jakub@redhat.com>
 160
 161         PR other/56076
 162         * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir
 163         attribute was not seen.
 164
 165 2013-01-16  Ian Lance Taylor  <iant@google.com>
 166
 167         * dwarf.c (struct unit): Add filename and abs_filename fields.
 168         (build_address_map): Set new fields when reading unit.
 169         (dwarf_lookup_pc): If we don't find an entry in the line table,
 170         just return the main file name.
 171
 172 2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>
 173
 174         Update copyright years.
 175
 176 2013-01-01  Ian Lance Taylor  <iant@google.com>
 177
 178         PR bootstrap/54834
 179         * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I
 180         $(MULTIBUILDTOP)/../../gcc/include.
 181         * Makefile.in: Rebuild.
 182
 183 2013-01-01  Ian Lance Taylor  <iant@google.com>
 184
 185         PR other/55536
 186         * mmap.c (backtrace_alloc): Don't call sync functions if not
 187         threaded.
 188         (backtrace_free): Likewise.
 189
 190 2012-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 191
 192         * mmapio.c: Define MAP_FAILED if not defined.
 193
 194 2012-12-11  Jakub Jelinek  <jakub@redhat.com>
 195
 196         PR bootstrap/54926
 197         * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@.
 198         * configure.ac: If --with-target-subdir, add -frandom-seed=$@
 199         to EXTRA_FLAGS unconditionally, otherwise check whether the compiler
 200         accepts it.
 201         * Makefile.in: Regenerated.
 202         * configure: Regenerated.
 203
 204 2012-12-07  Jakub Jelinek  <jakub@redhat.com>
 205
 206         PR bootstrap/54926
 207         * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@.
 208         * Makefile.in: Regenerated.
 209
 210 2012-11-20  Ian Lance Taylor  <iant@google.com>
 211
 212         * dwarf.c (read_attribute): Always clear val.
 213
 214 2012-11-13  Ian Lance Taylor  <iant@google.com>
 215
 216         PR other/55312
 217         * configure.ac: Only add -Werror if building a target library.
 218         * configure: Rebuild.
 219
 220 2012-11-12  Ian Lance Taylor  <iant@google.com>
 221             Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 222             Gerald Pfeifer  <gerald@pfeifer.com>
 223
 224         * configure.ac: Check for getexecname.
 225         * fileline.c: #include <errno.h>.  Define getexecname if not
 226         available.
 227         (fileline_initialize): Try to find the executable in a few
 228         different ways.
 229         * print.c (error_callback): Only print the filename if it came
 230         from the backtrace state.
 231         * configure, config.h.in: Rebuild.
 232
 233 2012-10-29  Ian Lance Taylor  <iant@google.com>
 234
 235         * mmap.c (backtrace_vector_release): Correct last patch: add
 236         aligned, not size.
 237
 238 2012-10-29  Ian Lance Taylor  <iant@google.com>
 239
 240         * mmap.c (backtrace_vector_release): Make sure freed block is
 241         aligned on 8-byte boundary.
 242
 243 2012-10-26  Ian Lance Taylor  <iant@google.com>
 244
 245         PR other/55087
 246         * posix.c (backtrace_open): Add does_not_exist parameter.
 247         * elf.c (phdr_callback): Do not warn if shared library could not
 248         be opened.
 249         * fileline.c (fileline_initialize): Update calls to
 250         backtrace_open.
 251         * internal.h (backtrace_open): Update declaration.
 252
 253 2012-10-26  Jack Howarth  <howarth@bromo.med.uc.edu>
 254
 255         PR target/55061
 256         * configure.ac: Check for _Unwind_GetIPInfo function declaration.
 257         * configure: Regenerate.
 258
 259 2012-10-24  Ian Lance Taylor  <iant@google.com>
 260
 261         PR target/55061
 262         * configure.ac: Check whether -funwind-tables option works.
 263         * configure: Rebuild.
 264
 265 2012-10-11  Ian Lance Taylor  <iant@google.com>
 266
 267         * configure.ac: Do not use dl_iterate_phdr on Solaris 10.
 268         * configure: Rebuild.
 269
 270 2012-10-10  Ian Lance Taylor  <iant@google.com>
 271
 272         * elf.c: Rename all Elf typedefs to start with b_elf, and be all
 273         lower case.
 274
 275 2012-10-10  Hans-Peter Nilsson  <hp@bitrange.com>
 276
 277         * elf.c (elf_add_syminfo_data): Add casts to avoid warning.
 278
 279 2012-10-09  Ian Lance Taylor  <iant@google.com>
 280
 281         * dwarf.c (dwarf_fileline): Add cast to avoid warning.
 282         (backtrace_dwarf_add): Likewise.
 283
 284 2012-10-09  Ian Lance Taylor  <iant@google.com>
 285
 286         Add support for tracing through shared libraries.
 287         * configure.ac: Check for link.h and dl_iterate_phdr.
 288         * elf.c: #include <link.h> if system has dl_iterate_phdr.  #undef
 289         ELF macros before #defining them.
 290         (dl_phdr_info, dl_iterate_phdr): Define if system does not have
 291         dl_iterate_phdr.
 292         (struct elf_syminfo_data): Add next field.
 293         (elf_initialize_syminfo): Initialize next field.
 294         (elf_add_syminfo_data): New static function.
 295         (elf_add): New static function, broken out of
 296         backtrace_initialize.  Call backtrace_dwarf_add instead of
 297         backtrace_dwarf_initialize.
 298         (struct phdr_data): Define.
 299         (phdr_callback): New static function.
 300         (backtrace_initialize): Call elf_add.
 301         * dwarf.c (struct dwarf_data): Add next and base_address fields.
 302         (add_unit_addr): Add base_address parameter.  Change all callers.
 303         (add_unit_ranges, build_address_map): Likewise.
 304         (add_line): Add ddata parameter.  Change all callers.
 305         (read_line_program, add_function_range): Likewise.
 306         (dwarf_lookup_pc): New static function, broken out of
 307         dwarf_fileline.
 308         (dwarf_fileline): Call dwarf_lookup_pc.
 309         (build_dwarf_data): New static function.
 310         (backtrace_dwarf_add): New function.
 311         (backtrace_dwarf_initialize): Remove.
 312         * internal.h (backtrace_dwarf_initialize): Don't declare.
 313         (backtrace_dwarf_add): Declare.
 314         * configure, config.h.in: Rebuild.
 315
 316 2012-10-04  Gerald Pfeifer  <gerald@pfeifer.com>
 317
 318         * btest.c (f23): Avoid uninitialized variable warning.
 319
 320 2012-10-04  Ian Lance Taylor  <iant@google.com>
 321
 322         * dwarf.c: If the system header files do not declare strnlen,
 323         provide our own version.
 324
 325 2012-10-03  Ian Lance Taylor  <iant@google.com>
 326
 327         * dwarf.c (read_uleb128): Fix overflow test.
 328         (read_sleb128): Likewise.
 329         (build_address_map): Don't change unit_buf.start.
 330
 331 2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
 332
 333         PR other/54761
 334         * configure.ac (EXTRA_FLAGS): New.
 335         * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
 336         * configure, Makefile.in: Regenerate.
 337
 338 2012-09-29  Ian Lance Taylor  <iant@google.com>
 339
 340         PR other/54749
 341         * fileline.c (fileline_initialize): Pass errnum as -1 when
 342         reporting that we could not read executable information after a
 343         previous failure.
 344
 345 2012-09-27  Ian Lance Taylor  <iant@google.com>
 346
 347         PR bootstrap/54732
 348         * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE.
 349         * Makefile.am: Add dependencies for all objects.
 350         * configure, aclocal.m4, Makefile.in: Rebuild.
 351
 352 2012-09-27  Ian Lance Taylor  <iant@google.com>
 353
 354         PR other/54726
 355         * elf.c (backtrace_initialize): Set *fileln_fn, not
 356         state->fileln_fn.
 357
 358 2012-09-19  Ian Lance Taylor  <iant@google.com>
 359
 360         * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled
 361         as a target library.
 362         * configure: Rebuild.
 363
 364 2012-09-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 365             Ian Lance Taylor  <iant@google.com>
 366
 367         * configure.ac (GCC_HEADER_STDINT): Invoke.
 368         * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
 369         * btest.c: Don't include <stdint.h>.
 370         * dwarf.c: Likewise.
 371         * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.
 372
 373 2012-09-18  Ian Lance Taylor  <iant@google.com>
 374
 375         PR bootstrap/54623
 376         * Makefile.am (AM_CPPFLAGS): Define.
 377         (AM_CFLAGS): Remove -I options.
 378         * Makefile.in: Rebuild.
 379
 380 2012-09-18  Ian Lance Taylor  <iant@google.com>
 381
 382         * posix.c (O_BINARY): Define if not defined.
 383         (backtrace_open): Pass O_BINARY to open.  Only call fcntl if
 384         HAVE_FCNTL is defined.
 385         * configure.ac: Test for the fcntl function.
 386         * configure, config.h.in: Rebuild.
 387
 388 2012-09-18  Ian Lance Taylor  <iant@google.com>
 389
 390         * btest.c (test1, test2, test3, test4): Add the unused attribute.
 391
 392 2012-09-18  Ian Lance Taylor  <iant@google.com>
 393
 394         * dwarf.c: Correct test of HAVE_DECL_STRNLEN.
 395
 396 2012-09-18  Ian Lance Taylor  <iant@google.com>
 397
 398         * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS.
 399         * mmapio.c: Don't define _GNU_SOURCE.
 400         * configure, config.h.in: Rebuild.
 401
 402 2012-09-18  Ian Lance Taylor  <iant@google.com>
 403
 404         * configure.ac: Check whether strnlen is declared.
 405         * dwarf.c: Declare strnlen if not declared.
 406         * configure, config.h.in: Rebuild.
 407
 408 2012-09-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 409
 410         * fileline.c: Include <stdlib.h>.
 411         * mmap.c: Likewise.
 412
 413 2012-09-17  Ian Lance Taylor  <iant@google.com>
 414
 415         PR bootstrap/54611
 416         * nounwind.c (backtrace_full): Rename from backtrace.  Add state
 417         parameter.
 418
 419 2012-09-17  Gerald Pfeifer  <gerald@pfeifer.com>
 420
 421         PR bootstrap/54611
 422         * nounwind.c (backtrace_simple): Add state parameter.
 423
 424 2012-09-17  Ian Lance Taylor  <iant@google.com>
 425
 426         PR bootstrap/54609
 427         * unknown.c (unknown_fileline): Add state parameter, remove
 428         fileline_data parameter, name error_callback parameter.
 429         (backtrace_initialize): Add state parameter.
 430
 431 2012-09-17  Ian Lance Taylor  <iant@google.com>
 432
 433         * Initial implementation.