Commit-ID:  be1f13e30862ab6b0fffaecd556856a965cefa0c
Gitweb:     http://git.kernel.org/tip/be1f13e30862ab6b0fffaecd556856a965cefa0c
Author:     Namhyung Kim <[email protected]>
AuthorDate: Mon, 10 Sep 2012 13:38:00 +0900
Committer:  Jiri Olsa <[email protected]>
CommitDate: Sun, 1 Jun 2014 14:34:59 +0200

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 <[email protected]>
Tested-by: Arun Sharma <[email protected]>
Tested-by: Rodrigo Campos <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jiri Olsa <[email protected]>
---
 tools/perf/util/callchain.h | 9 +++++++++
 1 file changed, 9 insertions(+)

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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