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Subject[PATCH 05/18] perf session: Use perf_evlist__sample_type more extensively
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

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>
---
tools/perf/builtin-report.c | 5 +++--
tools/perf/builtin-test.c | 10 ++--------
tools/perf/util/session.c | 31 ++++++++++++++++++++++---------
tools/perf/util/session.h | 11 +++--------
4 files changed, 30 insertions(+), 27 deletions(-)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 69b1c11..7c88a24 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 2ea5fe4..e5032ed 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 b8da60d..00e180e 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 4d549e2..c45ce43 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);
--
1.7.1


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