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perf tools: Adds the tracepoint name parsing support
authorHe Kuang <hekuang@huawei.com>
Mon, 28 Sep 2015 03:52:15 +0000 (03:52 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 28 Sep 2015 20:29:38 +0000 (17:29 -0300)
Adds rules for parsing tracepoint names. Change rules of tracepoint which
derives from PE_NAMEs into tracepoint names directly, so adding more rules
based on tracepoint names will be easier.

Changes v2-v3:
   - Change __event_legacy_tracepoint label in bison file to tracepoint_name
   - Fix formats error.

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1443412336-120050-3-git-send-email-hekuang@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/parse-events.y patch | blob | history

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 8bcc458..1c598c2 100644 (file)
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -67,6 +67,7 @@ static inc_group_count(struct list_head *list,
 %type <head> event_legacy_cache
 %type <head> event_legacy_mem
 %type <head> event_legacy_tracepoint
+%type <tracepoint_name> tracepoint_name
 %type <head> event_legacy_numeric
 %type <head> event_legacy_raw
 %type <head> event_def
@@ -84,6 +85,10 @@ static inc_group_count(struct list_head *list,
        u64 num;
        struct list_head *head;
        struct parse_events_term *term;
+       struct tracepoint_name {
+               char *sys;
+               char *event;
+       } tracepoint_name;
 }
 %%
 
@@ -368,36 +373,40 @@ PE_PREFIX_MEM PE_VALUE sep_dc
 }
 
 event_legacy_tracepoint:
-PE_NAME '-' PE_NAME ':' PE_NAME
+tracepoint_name
 {
        struct parse_events_evlist *data = _data;
        struct parse_events_error *error = data->error;
        struct list_head *list;
-       char sys_name[128];
-       snprintf(&sys_name, 128, "%s-%s", $1, $3);
 
        ALLOC_LIST(list);
-       if (parse_events_add_tracepoint(list, &data->idx, &sys_name, $5, error)) {
+       if (parse_events_add_tracepoint(list, &data->idx, $1.sys, $1.event,
+                                       error)) {
                if (error)
                        error->idx = @1.first_column;
                return -1;
        }
        $$ = list;
 }
+
+tracepoint_name:
+PE_NAME '-' PE_NAME ':' PE_NAME
+{
+       char sys_name[128];
+       struct tracepoint_name tracepoint;
+
+       snprintf(&sys_name, 128, "%s-%s", $1, $3);
+       tracepoint.sys = &sys_name;
+       tracepoint.event = $5;
+
+       $$ = tracepoint;
+}
 |
 PE_NAME ':' PE_NAME
 {
-       struct parse_events_evlist *data = _data;
-       struct parse_events_error *error = data->error;
-       struct list_head *list;
+       struct tracepoint_name tracepoint = {$1, $3};
 
-       ALLOC_LIST(list);
-       if (parse_events_add_tracepoint(list, &data->idx, $1, $3, error)) {
-               if (error)
-                       error->idx = @1.first_column;
-               return -1;
-       }
-       $$ = list;
+       $$ = tracepoint;
 }
 
 event_legacy_numeric:
Domain: System / Kernel;