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Subject[PATCH v9 08/11] perf, tools: Add a new pmu interface to iterate over all events
Date
From: Andi Kleen <ak@linux.intel.com>

With calling a callback. To be used in test code added in the next
patch.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
---
Changelog[v9] by Sukadev Bhattiprolu
Rebase to 4.0 and fix conflicts in:
tools/perf/util/pmu.c
tools/perf/util/pmu.h
---
tools/perf/util/pmu.c | 18 ++++++++++++++++++
tools/perf/util/pmu.h | 1 +
2 files changed, 19 insertions(+)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 2150455..82f7654 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1068,3 +1068,21 @@ int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt,
va_end(args);
return ret;
}
+
+int pmu_iterate_events(int (*func)(const char *pmu, const char *name))
+{
+ int ret = 0;
+ struct perf_pmu *pmu;
+ struct perf_pmu_alias *alias;
+
+ perf_pmu__find("cpu"); /* Load PMUs */
+ pmu = NULL;
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ list_for_each_entry(alias, &pmu->aliases, list) {
+ ret = func(pmu->name, alias->name);
+ if (ret != 0)
+ break;
+ }
+ }
+ return ret;
+}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index f8dac0f..889cadf 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -76,6 +76,7 @@ int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt,
int perf_pmu__test(void);

struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
+int pmu_iterate_events(int (*func)(const char *, const char *name));

extern const char *json_file;
#endif /* __PMU_H */
--
1.7.9.5


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