perf session: Use perf_evlist__sample_type more extensively

Removing perf_session->sample_type, as it can be obtained from the
evsel/evlist.

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-mnt1zwlik7sp7z6ljc9kyefg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 30 insertions, 27 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 69b1c1185159..7c88a243b5db 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -249,8 +249,9 @@ static int process_read_event(struct perf_tool *tool,
 static int perf_report__setup_sample_type(struct perf_report *rep)
 {
         struct perf_session *self = rep->session;
+        u64 sample_type = perf_evlist__sample_type(self->evlist);
 
-        if (!self->fd_pipe && !(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
+        if (!self->fd_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
                 if (sort__has_parent) {
                         ui__error("Selected --sort parent, but no "
                                     "callchain data. Did you call "
@@ -274,7 +275,7 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
 
         if (sort__branch_mode == 1) {
                 if (!self->fd_pipe &&
-                    !(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
+                    !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
                         ui__error("Selected -b but no branch data. "
                                   "Did you call perf record without -b?\n");
                         return -1;
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 2ea5fe4cc940..e5032ed2f259 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -661,7 +661,7 @@ static int test__PERF_RECORD(void)
         const char *cmd = "sleep";
         const char *argv[] = { cmd, "1", NULL, };
         char *bname;
-        u64 sample_type, prev_time = 0;
+        u64 prev_time = 0;
         bool found_cmd_mmap = false,
              found_libc_mmap = false,
              found_vdso_mmap = false,
@@ -757,12 +757,6 @@ static int test__PERF_RECORD(void)
         }
 
         /*
-         * We'll need these two to parse the PERF_SAMPLE_* fields in each
-         * event.
-         */
-        sample_type = perf_evlist__sample_type(evlist);
-
-        /*
          * Now that all is properly set up, enable the events, they will
          * count just on workload.pid, which will start...
          */
@@ -787,7 +781,7 @@ static int test__PERF_RECORD(void)
                                 if (type < PERF_RECORD_MAX)
                                         nr_events[type]++;
 
-                                err = perf_event__parse_sample(event, sample_type,
+                                err = perf_event__parse_sample(event, evsel->attr.sample_type,
                                                                evsel->sample_size, true,
                                                                &sample, false);
                                 if (err < 0) {
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index b8da60d1ecb5..00e180e116e7 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -23,12 +23,20 @@ int perf_session__parse_sample(struct perf_session *session,
         struct perf_evsel *first;
         first = list_entry(session->evlist->entries.next, struct perf_evsel, node);
 
-        return perf_event__parse_sample(event, session->sample_type,
+        return perf_event__parse_sample(event, first->attr.sample_type,
                                         first->sample_size,
                                         session->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)
+{
+        return perf_event__synthesize_sample(event, perf_evlist__sample_type(session->evlist),
+                                             sample, session->header.needs_swap);
+}
+
 static int perf_session__open(struct perf_session *self, bool force)
 {
         struct stat input_stat;
@@ -95,7 +103,6 @@ out_close:
 
 void perf_session__update_sample_type(struct perf_session *self)
 {
-        self->sample_type = perf_evlist__sample_type(self->evlist);
         self->sample_id_all = perf_evlist__sample_id_all(self->evlist);
         self->id_hdr_size = perf_evlist__id_hdr_size(self->evlist);
         self->host_machine.id_hdr_size = self->id_hdr_size;
@@ -877,16 +884,18 @@ static void perf_session__print_tstamp(struct perf_session *session,
                                        union perf_event *event,
                                        struct perf_sample *sample)
 {
+        u64 sample_type = perf_evlist__sample_type(session->evlist);
+
         if (event->header.type != PERF_RECORD_SAMPLE &&
             !session->sample_id_all) {
                 fputs("-1 -1 ", stdout);
                 return;
         }
 
-        if ((session->sample_type & PERF_SAMPLE_CPU))
+        if ((sample_type & PERF_SAMPLE_CPU))
                 printf("%u ", sample->cpu);
 
-        if (session->sample_type & PERF_SAMPLE_TIME)
+        if (sample_type & PERF_SAMPLE_TIME)
                 printf("%" PRIu64 " ", sample->time);
 }
 
@@ -911,6 +920,8 @@ static void dump_event(struct perf_session *session, union perf_event *event,
 static void dump_sample(struct perf_session *session, union perf_event *event,
                         struct perf_sample *sample)
 {
+        u64 sample_type;
+
         if (!dump_trace)
                 return;
 
@@ -918,10 +929,12 @@ static void dump_sample(struct perf_session *session, union perf_event *event,
                event->header.misc, sample->pid, sample->tid, sample->ip,
                sample->period, sample->addr);
 
-        if (session->sample_type & PERF_SAMPLE_CALLCHAIN)
+        sample_type = perf_evlist__sample_type(session->evlist);
+
+        if (sample_type & PERF_SAMPLE_CALLCHAIN)
                 callchain__printf(sample);
 
-        if (session->sample_type & PERF_SAMPLE_BRANCH_STACK)
+        if (sample_type & PERF_SAMPLE_BRANCH_STACK)
                 branch_stack__printf(sample);
 }
 
@@ -1018,7 +1031,7 @@ static int perf_session__preprocess_sample(struct perf_session *session,
                                            union perf_event *event, struct perf_sample *sample)
 {
         if (event->header.type != PERF_RECORD_SAMPLE ||
-            !(session->sample_type & PERF_SAMPLE_CALLCHAIN))
+            !(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_CALLCHAIN))
                 return 0;
 
         if (!ip_callchain__valid(sample->callchain, event)) {
@@ -1401,9 +1414,9 @@ int perf_session__process_events(struct perf_session *self,
         return err;
 }
 
-bool perf_session__has_traces(struct perf_session *self, const char *msg)
+bool perf_session__has_traces(struct perf_session *session, const char *msg)
 {
-        if (!(self->sample_type & PERF_SAMPLE_RAW)) {
+        if (!(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_RAW)) {
                 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
                 return false;
         }
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 4d549e28248f..c45ce4348b83 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -41,7 +41,6 @@ struct perf_session {
          *        perf.data file.
          */
         struct hists            hists;
-        u64                     sample_type;
         int                     fd;
         bool                    fd_pipe;
         bool                    repipe;
@@ -133,13 +132,9 @@ int perf_session__parse_sample(struct perf_session *session,
                                const union perf_event *event,
                                struct perf_sample *sample);
 
-static inline int perf_session__synthesize_sample(struct perf_session *session,
-                                                  union perf_event *event,
-                                                  const struct perf_sample *sample)
-{
-        return perf_event__synthesize_sample(event, session->sample_type,
-                                             sample, session->header.needs_swap);
-}
+int perf_session__synthesize_sample(struct perf_session *session,
+                                    union perf_event *event,
+                                    const struct perf_sample *sample);
 
 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
                                             unsigned int type);