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perf tools: Add support to specify pmu style event

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Added new event rule to the event definition grammar:

event_def: event_pmu |
           ...
event_pmu: PE_NAME '/' event_config '/'

Using this rule, event could be now specified like:
  cpu/config=1,config1=2,config2=3/u

where pmu name 'cpu' is looked up via following path:
  ${sysfs_mount}/bus/event_source/devices/${pmu}

and config options are bound to the pmu's format definiton:
  ${sysfs_mount}/bus/event_source/devices/${pmu}/format

The hardcoded config options still stays and have precedence
over any format field defined with same name.

Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-50d8nr94f8k4wkezutrxvthe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2012-03-15 20:09:18 +01:00
committed by Arnaldo Carvalho de Melo
parent cd82a32e99
commit 5f537a2659
5 changed files with 185 additions and 113 deletions
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10
tools/perf/util/parse-events.y
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@@ -61,13 +61,21 @@ event_def PE_MODIFIER_EVENT
|
event_def
event_def: event_legacy_symbol |
event_def: event_pmu |
event_legacy_symbol |
event_legacy_cache sep_dc |
event_legacy_mem |
event_legacy_tracepoint sep_dc |
event_legacy_numeric sep_dc |
event_legacy_raw sep_dc
event_pmu:
PE_NAME '/' event_config '/'
{
ABORT_ON(parse_events_add_pmu(list, idx, $1, $3));
parse_events__free_terms($3);
}
event_legacy_symbol:
PE_VALUE_SYM '/' event_config '/'
{