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| author | Rabin Vincent <rabin.vincent@axis.com> | 2015-10-29 08:49:36 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-10-29 17:48:38 -0300 |
| commit | 7ed4915ad60788d6b846e2cd034f49ee15698143 (patch) | |
| tree | 81cc1a59203c393286dba3e76daa343f5c35b127 /tools | |
| parent | 3af6ed84eb43c587beb5f3252222e39e65d08c61 (diff) | |
| download | linux-7ed4915ad60788d6b846e2cd034f49ee15698143.tar.gz linux-7ed4915ad60788d6b846e2cd034f49ee15698143.tar.bz2 linux-7ed4915ad60788d6b846e2cd034f49ee15698143.zip | |
perf unwind: Pass symbol source to libunwind
Even if --symfs is used to point to the debug binaries, we send in the
non-debug filenames to libunwind, which leads to libunwind not finding
the debug frame. Fix this by preferring the file in --symfs, if it is
available.
Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rabin Vincent <rabinv@axis.com>
Link: http://lkml.kernel.org/r/1446104978-26429-1-git-send-email-rabin.vincent@axis.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/unwind-libunwind.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c index f729f9e99f99..c83832b555e5 100644 --- a/tools/perf/util/unwind-libunwind.c +++ b/tools/perf/util/unwind-libunwind.c @@ -360,12 +360,15 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, int fd = dso__data_get_fd(map->dso, ui->machine); int is_exec = elf_is_exec(fd, map->dso->name); unw_word_t base = is_exec ? 0 : map->start; + const char *symfile; if (fd >= 0) dso__data_put_fd(map->dso); + symfile = map->dso->symsrc_filename ?: map->dso->name; + memset(&di, 0, sizeof(di)); - if (dwarf_find_debug_frame(0, &di, ip, base, map->dso->name, + if (dwarf_find_debug_frame(0, &di, ip, base, symfile, map->start, map->end)) return dwarf_search_unwind_table(as, ip, &di, pi, need_unwind_info, arg); |