diff options
| author | Jiri Olsa <jolsa@redhat.com> | 2012-08-08 14:14:14 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-15 00:03:44 +0400 |
| commit | 89efb029502d7f2d0993ed2aa9280c414336939c (patch) | |
| tree | bb7b21dbad1e0b2b47a28ec24e3a430e22f19d1c /tools/perf/util/parse-events.y | |
| parent | a619183672aace2ce3de15728da922d303c0eef9 (diff) | |
| download | linux-89efb029502d7f2d0993ed2aa9280c414336939c.tar.xz | |
perf tools: Add support to parse event group syntax
Adding scanner/parser bits to parse event groups.
The grammar for group is:
groups: groups ',' group | group
group: group_name '{' events '}' group_mod
group_name: name | empty
group_mod: ':' group_mods | empty
group_mods: event_mod
It's possible to use standard event modifier as a modifier
for group. It'll be used as an update to existing event
modifiers.
It's necessary to use quoting ("'\) when specifying group on
command line, since {} characters are interpreted by most of
the shells.
It is now possible to specify groups in event syntax like:
'{cycles,faults}'
- anonymous group
'group1{cycles,faults}
- group with name 'group1'
'{cycles,faults}:k
- anonymous group with event modifier 'k'
'{cpu-clock,task-clock},{minor-faults,major-faults}'
- two anonymous groups
The grouping functionality itself is coming shortly.
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/n/tip-p4j8bnvo879uokum4k4zk5q6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/parse-events.y')
| -rw-r--r-- | tools/perf/util/parse-events.y | 93 |
1 files changed, 80 insertions, 13 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index 423d33151466..15e6e97e5b34 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -30,7 +30,7 @@ do { \ %token PE_NAME %token PE_MODIFIER_EVENT PE_MODIFIER_BP %token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT -%token PE_PREFIX_MEM PE_PREFIX_RAW +%token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP %token PE_ERROR %type <num> PE_VALUE %type <num> PE_VALUE_SYM_HW @@ -53,6 +53,11 @@ do { \ %type <head> event_legacy_numeric %type <head> event_legacy_raw %type <head> event_def +%type <head> event +%type <head> events +%type <head> group_def +%type <head> group +%type <head> groups %union { @@ -64,33 +69,95 @@ do { \ %% start: -PE_START_EVENTS events +PE_START_EVENTS start_events | -PE_START_TERMS terms +PE_START_TERMS start_terms + +start_events: groups +{ + struct parse_events_data__events *data = _data; + + parse_events_update_lists($1, &data->list); +} + +groups: +groups ',' group +{ + struct list_head *list = $1; + struct list_head *group = $3; + + parse_events_update_lists(group, list); + $$ = list; +} +| +groups ',' event +{ + struct list_head *list = $1; + struct list_head *event = $3; + + parse_events_update_lists(event, list); + $$ = list; +} +| +group +| +event + +group: +group_def ':' PE_MODIFIER_EVENT +{ + struct list_head *list = $1; + + ABORT_ON(parse_events__modifier_group(list, $3)); + $$ = list; +} +| +group_def + +group_def: +PE_NAME '{' events '}' +{ + struct list_head *list = $3; + + parse_events__group($1, list); + $$ = list; +} +| +'{' events '}' +{ + struct list_head *list = $2; + + parse_events__group(NULL, list); + $$ = list; +} events: -events ',' event | event +events ',' event +{ + struct list_head *event = $3; + struct list_head *list = $1; + + parse_events_update_lists(event, list); + $$ = list; +} +| +event event: event_def PE_MODIFIER_EVENT { - struct parse_events_data__events *data = _data; + struct list_head *list = $1; /* * Apply modifier on all events added by single event definition * (there could be more events added for multiple tracepoint * definitions via '*?'. */ - ABORT_ON(parse_events_modifier($1, $2)); - parse_events_update_lists($1, &data->list); + ABORT_ON(parse_events__modifier_event(list, $2)); + $$ = list; } | event_def -{ - struct parse_events_data__events *data = _data; - - parse_events_update_lists($1, &data->list); -} event_def: event_pmu | event_legacy_symbol | @@ -222,7 +289,7 @@ PE_RAW $$ = list; } -terms: event_config +start_terms: event_config { struct parse_events_data__terms *data = _data; data->terms = $1; |