| Date | Tue, 3 Jun 2014 11:32:51 -0700 | From | tip-bot for Namhyung Kim <> | Subject | [tip:perf/core] perf callchain: Add callchain_cursor_snapshot() |
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Commit-ID: be1f13e30862ab6b0fffaecd556856a965cefa0c Gitweb: http://git.kernel.org/tip/be1f13e30862ab6b0fffaecd556856a965cefa0c Author: Namhyung Kim <namhyung@kernel.org> AuthorDate: Mon, 10 Sep 2012 13:38:00 +0900 Committer: Jiri Olsa <jolsa@kernel.org> 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 <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> --- 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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