From: Rabin Vincent <rab...@axis.com>
When using split debug info, the file without debug info may not have a
.debug_frame section, so we need to check the symsrc ELF also, since
that's the file we actually read the unwind information from.
Signed-off-by: Rabin Vincent <rab...@axis.com>
---
tools/perf/util/unwind-libunwind-local.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/tools/perf/util/unwind-libunwind-local.c
b/tools/perf/util/unwind-libunwind-local.c
index 97c0f8f..d492192 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -308,6 +308,20 @@ static int read_unwind_spec_debug_frame(struct dso *dso,
dso__data_put_fd(dso);
}
+ /*
+ * With split debug info, the file without debug info may not have a
+ * .debug_frame, so check the symsrc too.
+ */
+ if (ofs == 0 && dso->symsrc_filename) {
+ fd = open(dso->symsrc_filename, O_RDONLY);
+ if (fd < 0)
+ return -EINVAL;
+
+ ofs = elf_section_offset(fd, ".debug_frame");
+ dso->data.debug_frame_offset = ofs;
+ close(fd);
+ }
+
*offset = ofs;
if (*offset)
return 0;
--
2.1.4
