1 2014-10-23 Ian Lance Taylor <iant@google.com>
3 * internal.h (backtrace_atomic_load_pointer) [no atomic or sync]:
6 2014-05-08 Ian Lance Taylor <iant@google.com>
8 * mmap.c (backtrace_free): If freeing a large aligned block of
9 memory, call munmap rather than holding onto it.
10 (backtrace_vector_grow): When growing a vector, double the number
11 of pages requested. When releasing the old version of a grown
12 vector, pass the correct size to backtrace_free.
14 2014-03-07 Ian Lance Taylor <iant@google.com>
16 * sort.c (backtrace_qsort): Use middle element as pivot.
18 2014-03-06 Ian Lance Taylor <iant@google.com>
22 * internal.h (backtrace_qsort): Declare.
23 * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort.
24 (read_line_info, read_function_entry): Likewise.
25 (read_function_info, build_dwarf_data): Likewise.
26 * elf.c (elf_initialize_syminfo): Likewise.
27 * Makefile.am (libbacktrace_la_SOURCES): Add sort.c.
28 (stest_SOURCES, stest_LDADD): Define.
29 (check_PROGRAMS): Add stest.
31 2014-02-07 Misty De Meo <misty@brew.sh>
34 * configure.ac: Use AC_LINK_IFELSE in check for
36 * configure: Regenerate.
38 2014-01-02 Richard Sandiford <rdsandiford@googlemail.com>
40 Update copyright years
42 2013-12-06 Jakub Jelinek <jakub@redhat.com>
44 * elf.c (ET_DYN): Undefine and define again.
45 (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN,
46 return early -1 without closing the descriptor.
47 (struct phdr_data): Add exe_descriptor.
48 (phdr_callback): If pd->exe_descriptor is not -1, for very first
49 call if dlpi_name is NULL just call elf_add with the exe_descriptor,
50 otherwise backtrace_close the exe_descriptor if not -1. Adjust
52 (backtrace_initialize): Adjust call to elf_add. If it returns
53 -1, set pd.exe_descriptor to descriptor, otherwise set it to -1.
55 2013-12-05 Ian Lance Taylor <iant@google.com>
57 * alloc.c (backtrace_vector_finish): Add error_callback and data
58 parameters. Call backtrace_vector_release. Return address base.
59 * mmap.c (backtrace_vector_finish): Add error_callback and data
60 parameters. Return address base.
61 * dwarf.c (read_function_info): Get new address base from
62 backtrace_vector_finish.
63 * internal.h (backtrace_vector_finish): Update declaration.
65 2013-11-27 Ian Lance Taylor <iant@google.com>
67 * dwarf.c (find_address_ranges): New static function, broken out
69 (build_address_map): Call it.
70 * btest.c (check): Check for missing filename or function, rather
72 (f3): Check that enough frames were returned.
74 2013-11-19 Jakub Jelinek <jakub@redhat.com>
76 * backtrace.h (backtrace_syminfo_callback): Add symsize argument.
77 * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as
79 * btest.c (struct symdata): Add size field.
80 (callback_three): Add symsize argument. Copy it to the data->size
82 (f23): Set symdata.size to 0.
83 (test5): Likewise. If sizeof (int) > 1, lookup address of
84 ((uintptr_t) &global) + 1. Verify symdata.val and symdata.size
87 * atomic.c: Include sys/types.h.
89 2013-11-18 Ian Lance Taylor <iant@google.com>
91 * configure.ac: Check for support of __atomic extensions.
92 * internal.h: Declare or #define atomic functions for use in
95 * dwarf.c (dwarf_lookup_pc): Use atomic functions.
96 (dwarf_fileline, backtrace_dwarf_add): Likewise.
97 * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise.
98 (backtrace_initialize): Likewise.
99 * fileline.c (fileline_initialize): Likewise.
100 * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c.
101 * configure, config.h.in, Makefile.in: Rebuild.
103 2013-11-18 Jakub Jelinek <jakub@redhat.com>
105 * elf.c (SHN_UNDEF): Define.
106 (elf_initialize_syminfo): Add base_address argument. Ignore symbols
107 with st_shndx == SHN_UNDEF. Add base_address to address fields.
108 (elf_add): Adjust caller.
110 * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally.
112 2013-11-16 Ian Lance Taylor <iant@google.com>
114 * backtrace.h (backtrace_create_state): Correct comment about
117 2013-11-15 Ian Lance Taylor <iant@google.com>
119 * backtrace.h (backtrace_syminfo): Update comment and parameter
120 name to take any address, not just a PC value.
121 * elf.c (STT_OBJECT): Define.
122 (elf_nosyms): Rename parameter pc to addr.
123 (elf_symbol_search): Rename local variable pc to addr.
124 (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
125 (elf_syminfo): Rename parameter pc to addr.
126 * btest.c (global): New global variable.
130 2013-10-17 Ian Lance Taylor <iant@google.com>
132 * elf.c (elf_add): Don't get the wrong offsets if a debug section
135 2013-10-15 David Malcolm <dmalcolm@redhat.com>
137 * configure.ac: Add --enable-host-shared, setting up
138 pre-existing PIC_FLAG variable within Makefile.am et al.
139 * configure: Regenerate.
141 2013-09-20 Alan Modra <amodra@gmail.com>
143 * configure: Regenerate.
145 2013-07-23 Alexander Monakov <amonakov@ispras.ru>
147 * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain.
149 2013-07-23 Alexander Monakov <amonakov@ispras.ru>
151 * elf.c (backtrace_initialize): Pass elf_fileline_fn to
152 dl_iterate_phdr callbacks.
154 2013-03-25 Ian Lance Taylor <iant@google.com>
156 * alloc.c: #include <sys/types.h>.
159 2013-01-31 Ian Lance Taylor <iant@google.com>
161 * dwarf.c (read_function_info): Permit fvec parameter to be NULL.
162 (dwarf_lookup_pc): Don't use ddata->fvec if threaded.
164 2013-01-25 Jakub Jelinek <jakub@redhat.com>
167 * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir
168 attribute was not seen.
170 2013-01-16 Ian Lance Taylor <iant@google.com>
172 * dwarf.c (struct unit): Add filename and abs_filename fields.
173 (build_address_map): Set new fields when reading unit.
174 (dwarf_lookup_pc): If we don't find an entry in the line table,
175 just return the main file name.
177 2013-01-14 Richard Sandiford <rdsandiford@googlemail.com>
179 Update copyright years.
181 2013-01-01 Ian Lance Taylor <iant@google.com>
184 * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I
185 $(MULTIBUILDTOP)/../../gcc/include.
186 * Makefile.in: Rebuild.
188 2013-01-01 Ian Lance Taylor <iant@google.com>
191 * mmap.c (backtrace_alloc): Don't call sync functions if not
193 (backtrace_free): Likewise.
195 2012-12-12 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
197 * mmapio.c: Define MAP_FAILED if not defined.
199 2012-12-11 Jakub Jelinek <jakub@redhat.com>
202 * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@.
203 * configure.ac: If --with-target-subdir, add -frandom-seed=$@
204 to EXTRA_FLAGS unconditionally, otherwise check whether the compiler
206 * Makefile.in: Regenerated.
207 * configure: Regenerated.
209 2012-12-07 Jakub Jelinek <jakub@redhat.com>
212 * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@.
213 * Makefile.in: Regenerated.
215 2012-11-20 Ian Lance Taylor <iant@google.com>
217 * dwarf.c (read_attribute): Always clear val.
219 2012-11-13 Ian Lance Taylor <iant@google.com>
222 * configure.ac: Only add -Werror if building a target library.
223 * configure: Rebuild.
225 2012-11-12 Ian Lance Taylor <iant@google.com>
226 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
227 Gerald Pfeifer <gerald@pfeifer.com>
229 * configure.ac: Check for getexecname.
230 * fileline.c: #include <errno.h>. Define getexecname if not
232 (fileline_initialize): Try to find the executable in a few
234 * print.c (error_callback): Only print the filename if it came
235 from the backtrace state.
236 * configure, config.h.in: Rebuild.
238 2012-10-29 Ian Lance Taylor <iant@google.com>
240 * mmap.c (backtrace_vector_release): Correct last patch: add
243 2012-10-29 Ian Lance Taylor <iant@google.com>
245 * mmap.c (backtrace_vector_release): Make sure freed block is
246 aligned on 8-byte boundary.
248 2012-10-26 Ian Lance Taylor <iant@google.com>
251 * posix.c (backtrace_open): Add does_not_exist parameter.
252 * elf.c (phdr_callback): Do not warn if shared library could not
254 * fileline.c (fileline_initialize): Update calls to
256 * internal.h (backtrace_open): Update declaration.
258 2012-10-26 Jack Howarth <howarth@bromo.med.uc.edu>
261 * configure.ac: Check for _Unwind_GetIPInfo function declaration.
262 * configure: Regenerate.
264 2012-10-24 Ian Lance Taylor <iant@google.com>
267 * configure.ac: Check whether -funwind-tables option works.
268 * configure: Rebuild.
270 2012-10-11 Ian Lance Taylor <iant@google.com>
272 * configure.ac: Do not use dl_iterate_phdr on Solaris 10.
273 * configure: Rebuild.
275 2012-10-10 Ian Lance Taylor <iant@google.com>
277 * elf.c: Rename all Elf typedefs to start with b_elf, and be all
280 2012-10-10 Hans-Peter Nilsson <hp@bitrange.com>
282 * elf.c (elf_add_syminfo_data): Add casts to avoid warning.
284 2012-10-09 Ian Lance Taylor <iant@google.com>
286 * dwarf.c (dwarf_fileline): Add cast to avoid warning.
287 (backtrace_dwarf_add): Likewise.
289 2012-10-09 Ian Lance Taylor <iant@google.com>
291 Add support for tracing through shared libraries.
292 * configure.ac: Check for link.h and dl_iterate_phdr.
293 * elf.c: #include <link.h> if system has dl_iterate_phdr. #undef
294 ELF macros before #defining them.
295 (dl_phdr_info, dl_iterate_phdr): Define if system does not have
297 (struct elf_syminfo_data): Add next field.
298 (elf_initialize_syminfo): Initialize next field.
299 (elf_add_syminfo_data): New static function.
300 (elf_add): New static function, broken out of
301 backtrace_initialize. Call backtrace_dwarf_add instead of
302 backtrace_dwarf_initialize.
303 (struct phdr_data): Define.
304 (phdr_callback): New static function.
305 (backtrace_initialize): Call elf_add.
306 * dwarf.c (struct dwarf_data): Add next and base_address fields.
307 (add_unit_addr): Add base_address parameter. Change all callers.
308 (add_unit_ranges, build_address_map): Likewise.
309 (add_line): Add ddata parameter. Change all callers.
310 (read_line_program, add_function_range): Likewise.
311 (dwarf_lookup_pc): New static function, broken out of
313 (dwarf_fileline): Call dwarf_lookup_pc.
314 (build_dwarf_data): New static function.
315 (backtrace_dwarf_add): New function.
316 (backtrace_dwarf_initialize): Remove.
317 * internal.h (backtrace_dwarf_initialize): Don't declare.
318 (backtrace_dwarf_add): Declare.
319 * configure, config.h.in: Rebuild.
321 2012-10-04 Gerald Pfeifer <gerald@pfeifer.com>
323 * btest.c (f23): Avoid uninitialized variable warning.
325 2012-10-04 Ian Lance Taylor <iant@google.com>
327 * dwarf.c: If the system header files do not declare strnlen,
328 provide our own version.
330 2012-10-03 Ian Lance Taylor <iant@google.com>
332 * dwarf.c (read_uleb128): Fix overflow test.
333 (read_sleb128): Likewise.
334 (build_address_map): Don't change unit_buf.start.
336 2012-10-02 Uros Bizjak <ubizjak@gmail.com>
339 * configure.ac (EXTRA_FLAGS): New.
340 * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
341 * configure, Makefile.in: Regenerate.
343 2012-09-29 Ian Lance Taylor <iant@google.com>
346 * fileline.c (fileline_initialize): Pass errnum as -1 when
347 reporting that we could not read executable information after a
350 2012-09-27 Ian Lance Taylor <iant@google.com>
353 * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE.
354 * Makefile.am: Add dependencies for all objects.
355 * configure, aclocal.m4, Makefile.in: Rebuild.
357 2012-09-27 Ian Lance Taylor <iant@google.com>
360 * elf.c (backtrace_initialize): Set *fileln_fn, not
363 2012-09-19 Ian Lance Taylor <iant@google.com>
365 * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled
367 * configure: Rebuild.
369 2012-09-19 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
370 Ian Lance Taylor <iant@google.com>
372 * configure.ac (GCC_HEADER_STDINT): Invoke.
373 * backtrace.h: If we can't find <stdint.h>, use "gstdint.h".
374 * btest.c: Don't include <stdint.h>.
376 * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild.
378 2012-09-18 Ian Lance Taylor <iant@google.com>
381 * Makefile.am (AM_CPPFLAGS): Define.
382 (AM_CFLAGS): Remove -I options.
383 * Makefile.in: Rebuild.
385 2012-09-18 Ian Lance Taylor <iant@google.com>
387 * posix.c (O_BINARY): Define if not defined.
388 (backtrace_open): Pass O_BINARY to open. Only call fcntl if
389 HAVE_FCNTL is defined.
390 * configure.ac: Test for the fcntl function.
391 * configure, config.h.in: Rebuild.
393 2012-09-18 Ian Lance Taylor <iant@google.com>
395 * btest.c (test1, test2, test3, test4): Add the unused attribute.
397 2012-09-18 Ian Lance Taylor <iant@google.com>
399 * dwarf.c: Correct test of HAVE_DECL_STRNLEN.
401 2012-09-18 Ian Lance Taylor <iant@google.com>
403 * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS.
404 * mmapio.c: Don't define _GNU_SOURCE.
405 * configure, config.h.in: Rebuild.
407 2012-09-18 Ian Lance Taylor <iant@google.com>
409 * configure.ac: Check whether strnlen is declared.
410 * dwarf.c: Declare strnlen if not declared.
411 * configure, config.h.in: Rebuild.
413 2012-09-18 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
415 * fileline.c: Include <stdlib.h>.
418 2012-09-17 Ian Lance Taylor <iant@google.com>
421 * nounwind.c (backtrace_full): Rename from backtrace. Add state
424 2012-09-17 Gerald Pfeifer <gerald@pfeifer.com>
427 * nounwind.c (backtrace_simple): Add state parameter.
429 2012-09-17 Ian Lance Taylor <iant@google.com>
432 * unknown.c (unknown_fileline): Add state parameter, remove
433 fileline_data parameter, name error_callback parameter.
434 (backtrace_initialize): Add state parameter.
436 2012-09-17 Ian Lance Taylor <iant@google.com>
438 * Initial implementation.