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Subject[PATCH 08/10] perf, tools: Expand PMU events by prefix match
Date
From: Andi Kleen <ak@linux.intel.com>

When the user specifies a pmu directly, expand it automatically
with a prefix match, similar as we do for the normal aliases now.

This allows to specify attributes for duplicated boxes quickly.
For example uncore_cbox_{0,8}/.../ can be now specified as cbox/.../
and it gets automatically expanded.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/util/parse-events.c | 25 +++++++++++++++++++++++++
tools/perf/util/parse-events.h | 3 +++
tools/perf/util/parse-events.y | 27 +++++++++++++++++++++++++--
3 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a2bbd17a0dc3..8b2333278988 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2399,6 +2399,31 @@ int parse_events_term__clone(struct parse_events_term **new,
term->err_term, term->err_val);
}

+int parse_events_copy_term_list(struct list_head *old,
+ struct list_head **new)
+{
+ struct parse_events_term *term, *n;
+ int ret;
+
+ if (!old) {
+ *new = NULL;
+ return 0;
+ }
+
+ *new = malloc(sizeof(struct list_head));
+ if (!*new)
+ return -ENOMEM;
+ INIT_LIST_HEAD(*new);
+
+ list_for_each_entry (term, old, list) {
+ ret = parse_events_term__clone(&n, term);
+ if (ret)
+ return ret;
+ list_add_tail(&n->list, *new);
+ }
+ return 0;
+}
+
void parse_events_terms__purge(struct list_head *terms)
{
struct parse_events_term *term, *h;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index da246a3ddb69..7ea95c35095c 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -164,6 +164,9 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
int parse_events_add_pmu(struct parse_events_evlist *data,
struct list_head *list, char *name,
struct list_head *head_config);
+int parse_events_copy_term_list(struct list_head *old,
+ struct list_head **new);
+
enum perf_pmu_event_symbol_type
perf_pmu__parse_check(const char *name);
void parse_events__set_leader(char *name, struct list_head *list);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 3a5196380609..790f0dd598b9 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -224,11 +224,34 @@ event_pmu:
PE_NAME opt_event_config
{
struct parse_events_evlist *data = _data;
- struct list_head *list;
+ struct list_head *list, *orig_terms, *terms;
+
+ if (parse_events_copy_term_list($2, &orig_terms))
+ YYABORT;

ALLOC_LIST(list);
- ABORT_ON(parse_events_add_pmu(data, list, $1, $2));
+ if (parse_events_add_pmu(data, list, $1, $2)) {
+ struct perf_pmu *pmu = NULL;
+ int ok = 0;
+
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ char *name = pmu->name;
+
+ if (!strncmp(name, "uncore_", 7))
+ name += 7;
+ if (!strncmp($1, name, strlen($1))) {
+ if (parse_events_copy_term_list(orig_terms, &terms))
+ YYABORT;
+ if (!parse_events_add_pmu(data, list, pmu->name, terms))
+ ok++;
+ parse_events_terms__delete(terms);
+ }
+ }
+ if (!ok)
+ YYABORT;
+ }
parse_events_terms__delete($2);
+ parse_events_terms__delete(orig_terms);
$$ = list;
}
|
--
2.5.5
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