Adding a way to specify hw event as pmu event term like:
'cpu/event=cpu-cycles/u'
'cpu/event=instructions,.../u'
'cpu/cycles,.../u'
The 'event=cpu-cycles' term is replaced/translated by the hw events
term translation, which is exposed by sysfs 'events' group attribute.
Adding parser bits, the rest is already handled by the pmu alias code.
Signed-off-by: Jiri Olsa <jo...@redhat.com>
Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Ingo Molnar <mi...@elte.hu>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Stephane Eranian <eran...@google.com>
---
tools/perf/util/parse-events.c | 18 ++++++++++++++++++
tools/perf/util/parse-events.h | 2 ++
tools/perf/util/parse-events.y | 18 ++++++++++++++++++
3 files changed, 38 insertions(+)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index aed38e4..5ce6f8c 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1139,6 +1139,24 @@ int parse_events__term_str(struct parse_events__term
**term,
config, str, 0);
}
+int parse_events__term_sym_hw(struct parse_events__term **term,
+ char *config, unsigned idx)
+{
+ struct event_symbol *sym;
+
+ BUG_ON(idx >= PERF_COUNT_HW_MAX);
+ sym = &event_symbols_hw[idx];
+
+ if (config)
+ return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
+ PARSE_EVENTS__TERM_TYPE_USER, config,
+ (char *) sym->symbol, 0);
+ else
+ return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
+ PARSE_EVENTS__TERM_TYPE_USER,
+ (char *) "event", (char *) sym->symbol, 0);
+}
+
int parse_events__term_clone(struct parse_events__term **new,
struct parse_events__term *term)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index c356e44..6b1e841 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -76,6 +76,8 @@ int parse_events__term_num(struct parse_events__term **_term,
int type_term, char *config, u64 num);
int parse_events__term_str(struct parse_events__term **_term,
int type_term, char *config, char *str);
+int parse_events__term_sym_hw(struct parse_events__term **term,
+ char *config, unsigned idx);
int parse_events__term_clone(struct parse_events__term **new,
struct parse_events__term *term);
void parse_events__free_terms(struct list_head *terms);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index cd88209..0f9914a 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -352,6 +352,15 @@ PE_NAME '=' PE_VALUE
$$ = term;
}
|
+PE_NAME '=' PE_VALUE_SYM_HW
+{
+ struct parse_events__term *term;
+ int config = $3 & 255;
+
+ ABORT_ON(parse_events__term_sym_hw(&term, $1, config));
+ $$ = term;
+}
+|
PE_NAME
{
struct parse_events__term *term;
@@ -361,6 +370,15 @@ PE_NAME
$$ = term;
}
|
+PE_VALUE_SYM_HW
+{
+ struct parse_events__term *term;
+ int config = $1 & 255;
+
+ ABORT_ON(parse_events__term_sym_hw(&term, NULL, config));
+ $$ = term;
+}
+|
PE_TERM '=' PE_NAME
{
struct parse_events__term *term;
--
1.7.11.4
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