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authorNamhyung Kim <namhyung@kernel.org>2012-09-10 13:38:00 +0900
committerJiri Olsa <jolsa@kernel.org>2014-06-01 14:34:59 +0200
commitbe1f13e30862ab6b0fffaecd556856a965cefa0c (patch)
treeb3a6c81f4d0ff062d1efe75e662f7a4d748007c8 /tools
parentb4d3c8bd86c4eda08456691121f83b4e1db46866 (diff)
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op-kernel-dev-be1f13e30862ab6b0fffaecd556856a965cefa0c.tar.gz
perf callchain: Add callchain_cursor_snapshot()
The callchain_cursor_snapshot() is for saving current status of the callchain. It'll be used to accumulate callchain information for each node. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arun Sharma <asharma@fb.com> Tested-by: Rodrigo Campos <rodrigo@sdfg.com.ar> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1401335910-16832-9-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/callchain.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 24a53d5..8f84423 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -167,4 +167,13 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
extern const char record_callchain_help[];
int parse_callchain_report_opt(const char *arg);
+
+static inline void callchain_cursor_snapshot(struct callchain_cursor *dest,
+ struct callchain_cursor *src)
+{
+ *dest = *src;
+
+ dest->first = src->curr;
+ dest->nr -= src->pos;
+}
#endif /* __PERF_CALLCHAIN_H */
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