perf evlist: Introduce perf_evlist__parse_sample

That is a more compact form of perf_session__parse_sample and to support
multiple evlists per perf_session is the way to go anyway.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vkxx3j5qktoj11bvcwmfjj13@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

7 files changed, 21 insertions, 31 deletions

diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index e5032ed2f259..1d592f5cbea9 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -562,9 +562,7 @@ static int test__basic_mmap(void)
                         goto out_munmap;
                 }
 
-                err = perf_event__parse_sample(event, attr.sample_type,
-                                               evsels[0]->sample_size,
-                                               false, &sample, false);
+                err = perf_evlist__parse_sample(evlist, event, &sample, false);
                 if (err) {
                         pr_err("Can't parse sample, err = %d\n", err);
                         goto out_munmap;
@@ -781,9 +779,7 @@ static int test__PERF_RECORD(void)
                                 if (type < PERF_RECORD_MAX)
                                         nr_events[type]++;
 
-                                err = perf_event__parse_sample(event, evsel->attr.sample_type,
-                                                               evsel->sample_size, true,
-                                                               &sample, false);
+                                err = perf_evlist__parse_sample(evlist, event, &sample, false);
                                 if (err < 0) {
                                         if (verbose)
                                                 perf_event__fprintf(event, stderr);
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 520e4256fc66..40264eaa9f0f 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -811,7 +811,7 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
         int ret;
 
         while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
-                ret = perf_session__parse_sample(session, event, &sample);
+                ret = perf_evlist__parse_sample(top->evlist, event, &sample, false);
                 if (ret) {
                         pr_err("Can't parse sample, err = %d\n", ret);
                         continue;
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 3edfd3483816..1a560e0904a5 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -881,3 +881,12 @@ int perf_evlist__start_workload(struct perf_evlist *evlist)
 
         return 0;
 }
+
+int perf_evlist__parse_sample(struct perf_evlist *evlist,
+                              const union perf_event *event,
+                              struct perf_sample *sample, bool swapped)
+{
+        struct perf_evsel *e = list_entry(evlist->entries.next, struct perf_evsel, node);
+        return perf_event__parse_sample(event, e->attr.sample_type, e->sample_size,
+                                        e->attr.sample_id_all, sample, swapped);
+}
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 40d4d3cdced0..a5a49118a91a 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -122,6 +122,10 @@ u64 perf_evlist__sample_type(const struct perf_evlist *evlist);
 bool perf_evlist__sample_id_all(const const struct perf_evlist *evlist);
 u16 perf_evlist__id_hdr_size(const struct perf_evlist *evlist);
 
+int perf_evlist__parse_sample(struct perf_evlist *evlist,
+                              const union perf_event *event,
+                              struct perf_sample *sample, bool swapped);
+
 bool perf_evlist__valid_sample_type(const struct perf_evlist *evlist);
 bool perf_evlist__valid_sample_id_all(const struct perf_evlist *evlist);
 
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index b0d6f85e30f1..0688bfb6d280 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -797,17 +797,13 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
 
         event = perf_evlist__mmap_read(evlist, cpu);
         if (event != NULL) {
-                struct perf_evsel *first;
                 PyObject *pyevent = pyrf_event__new(event);
                 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
 
                 if (pyevent == NULL)
                         return PyErr_NoMemory();
 
-                first = list_entry(evlist->entries.next, struct perf_evsel, node);
-                err = perf_event__parse_sample(event, first->attr.sample_type,
-                                               first->sample_size,
-                                               sample_id_all, &pevent->sample, false);
+                err = perf_evlist__parse_sample(evlist, event, &pevent->sample, false);
                 if (err)
                         return PyErr_Format(PyExc_OSError,
                                             "perf: can't parse sample, err=%d", err);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 5b8601df2392..7d07324db41c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -16,19 +16,6 @@
 #include "cpumap.h"
 #include "event-parse.h"
 
-int perf_session__parse_sample(struct perf_session *session,
-                               const union perf_event *event,
-                               struct perf_sample *sample)
-{
-        struct perf_evsel *first;
-        first = list_entry(session->evlist->entries.next, struct perf_evsel, node);
-
-        return perf_event__parse_sample(event, first->attr.sample_type,
-                                        first->sample_size,
-                                        first->attr.sample_id_all, sample,
-                                        session->header.needs_swap);
-}
-
 int perf_session__synthesize_sample(struct perf_session *session,
                                     union perf_event *event,
                                     const struct perf_sample *sample)
@@ -692,7 +679,8 @@ static void flush_sample_queue(struct perf_session *s,
                 if (iter->timestamp > limit)
                         break;
 
-                ret = perf_session__parse_sample(s, iter->event, &sample);
+                ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample,
+                                                s->header.needs_swap);
                 if (ret)
                         pr_err("Can't parse sample, err = %d\n", ret);
                 else
@@ -1103,7 +1091,8 @@ static int perf_session__process_event(struct perf_session *session,
         /*
          * For all kernel events we get the sample data
          */
-        ret = perf_session__parse_sample(session, event, &sample);
+        ret = perf_evlist__parse_sample(session->evlist, event, &sample,
+                                        session->header.needs_swap);
         if (ret)
                 return ret;
 
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index e2a1a4b7b236..7389fb1f010a 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -126,10 +126,6 @@ size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 
 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 
-int perf_session__parse_sample(struct perf_session *session,
-                               const union perf_event *event,
-                               struct perf_sample *sample);
-
 int perf_session__synthesize_sample(struct perf_session *session,
                                     union perf_event *event,
                                     const struct perf_sample *sample);