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.vinc...@axis.com>
---
v2: fall back to ->name if ->symsrc_filename is NULL
tools/perf/util/unwind-libunwind.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/unwind-libunwind.c
b/tools/perf/util/unwind-libunwind.c
index f729f9e..c83832b 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);
--
1.7.10.4
--
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