Commit-ID: 1388d715dd7d0f494c93dfdef6ab26719218b868
Gitweb: http://git.kernel.org/tip/1388d715dd7d0f494c93dfdef6ab26719218b868
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Tue, 19 Jun 2012 17:48:05 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 29 Jun 2012 13:37:57 -0300
perf symbols: Add '.note' check into search for NOTE section
Adding '.note' section name to be check when looking for notes section.
The '.note' name is used by kernel VDSO.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Arun Sharma <asharma@xxxxxx>
Cc: Benjamin Redelings <benjamin.redelings@xxxxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Frank Ch. Eigler <fche@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Robert Richter <robert.richter@xxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
Cc: Ulrich Drepper <drepper@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1340120894-9465-15-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/symbol.c | 29 +++++++++++++++++++++++------
1 files changed, 23 insertions(+), 6 deletions(-)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 994f4ff..50958bb 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1478,14 +1478,31 @@ static int elf_read_build_id(Elf *elf, void *bf, size_t size)
goto out;
}
- sec = elf_section_by_name(elf, &ehdr, &shdr,
- ".note.gnu.build-id", NULL);
- if (sec == NULL) {
+ /*
+ * Check following sections for notes:
+ * '.note.gnu.build-id'
+ * '.notes'
+ * '.note' (VDSO specific)
+ */
+ do {
+ sec = elf_section_by_name(elf, &ehdr, &shdr,
+ ".note.gnu.build-id", NULL);
+ if (sec)
+ break;
+
sec = elf_section_by_name(elf, &ehdr, &shdr,
".notes", NULL);
- if (sec == NULL)
- goto out;
- }
+ if (sec)
+ break;
+
+ sec = elf_section_by_name(elf, &ehdr, &shdr,
+ ".note", NULL);
+ if (sec)
+ break;
+
+ return err;
+
+ } while (0);
data = elf_getdata(sec, NULL);
if (data == NULL)
--
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