From e7c93f09b83be25281cf129674e0035664715033 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 26 Jun 2013 16:14:05 +0900 Subject: perf util: Use evsel->name to get tracepoint_paths Most tracepoint events already have their system and event name in ->name field so that searching whole event tracing directory for each evsel to match given id is suboptimal. Factor out this routine into tracepoint_name_to_path(). In case of en invalid name, it'll try to find path using id again. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1372230862-15861-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/parse-events.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'tools/perf/util/parse-events.c') diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 995fc25db8c6..ef72e98a07a6 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -217,6 +217,29 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config) return NULL; } +struct tracepoint_path *tracepoint_name_to_path(const char *name) +{ + struct tracepoint_path *path = zalloc(sizeof(*path)); + char *str = strchr(name, ':'); + + if (path == NULL || str == NULL) { + free(path); + return NULL; + } + + path->system = strndup(name, str - name); + path->name = strdup(str+1); + + if (path->system == NULL || path->name == NULL) { + free(path->system); + free(path->name); + free(path); + path = NULL; + } + + return path; +} + const char *event_type(int type) { switch (type) { -- cgit v1.2.3