[tip: perf/core] libperf: Add perf_thread_map__nr/perf_thread_map__pid functions

tip-bot2 for Jiri Olsa
2019-08-23T12:29:35Z

The following commit has been merged into the perf/core branch of tip:

Commit-ID: a2f354e3abb853f9a40048829e1f839e8f7fada5
Gitweb: https://git.kernel.org/tip/a2f354e3abb853f9a40048829e1f839e8f7fada5
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Thu, 22 Aug 2019 13:11:41 +02:00
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitterDate: Thu, 22 Aug 2019 17:16:57 -03:00

libperf: Add perf_thread_map__nr/perf_thread_map__pid functions

So it's part of libperf library as basic functions operating on
perf_thread_map objects.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190822111141.25823-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-ftrace.c | 2 +-
tools/perf/builtin-script.c | 4 +--
tools/perf/builtin-stat.c | 4 +--
tools/perf/builtin-trace.c | 4 +--
tools/perf/lib/include/perf/threadmap.h | 2 ++-
tools/perf/lib/libperf.map | 2 ++-
tools/perf/lib/threadmap.c | 10 ++++++++-
tools/perf/tests/thread-map.c | 6 ++---
tools/perf/util/auxtrace.c | 4 +--
tools/perf/util/event.c | 8 +++---
tools/perf/util/evlist.c | 12 ++++-----
tools/perf/util/evsel.c | 4 +--
tools/perf/util/scripting-engines/trace-event-python.c | 2 +-
tools/perf/util/stat-display.c | 4 +--
tools/perf/util/stat.c | 4 +--
tools/perf/util/thread_map.c | 4 +--
tools/perf/util/thread_map.h | 10 +--------
17 files changed, 45 insertions(+), 41 deletions(-)

diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 1367bb5..565db78 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -158,7 +158,7 @@ static int set_tracing_pid(struct perf_ftrace *ftrace)
if (target__has_cpu(&ftrace->target))
return 0;

- for (i = 0; i < thread_map__nr(ftrace->evlist->core.threads); i++) {
+ for (i = 0; i < perf_thread_map__nr(ftrace->evlist->core.threads); i++) {
scnprintf(buf, sizeof(buf), "%d",
ftrace->evlist->core.threads->map[i]);
if (append_tracing_file("set_ftrace_pid", buf) < 0)
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index e957b87..9b93dde 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1906,7 +1906,7 @@ static struct scripting_ops *scripting_ops;

static void __process_stat(struct evsel *counter, u64 tstamp)
{
- int nthreads = thread_map__nr(counter->core.threads);
+ int nthreads = perf_thread_map__nr(counter->core.threads);
int ncpus = perf_evsel__nr_cpus(counter);
int cpu, thread;
static int header_printed;
@@ -1928,7 +1928,7 @@ static void __process_stat(struct evsel *counter, u64 tstamp)

printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
counter->core.cpus->map[cpu],
- thread_map__pid(counter->core.threads, thread),
+ perf_thread_map__pid(counter->core.threads, thread),
counts->val,
counts->ena,
counts->run,
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 90636a8..8a4f1a7 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -264,7 +264,7 @@ static int read_single_counter(struct evsel *counter, int cpu,
*/
static int read_counter(struct evsel *counter, struct timespec *rs)
{
- int nthreads = thread_map__nr(evsel_list->core.threads);
+ int nthreads = perf_thread_map__nr(evsel_list->core.threads);
int ncpus, cpu, thread;

if (target__has_cpu(&target) && !target__has_per_thread(&target))
@@ -1893,7 +1893,7 @@ int cmd_stat(int argc, const char **argv)
thread_map__read_comms(evsel_list->core.threads);
if (target.system_wide) {
if (runtime_stat_new(&stat_config,
- thread_map__nr(evsel_list->core.threads))) {
+ perf_thread_map__nr(evsel_list->core.threads))) {
goto out;
}
}
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bc44ed2..de12625 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -3188,7 +3188,7 @@ static int trace__set_filter_pids(struct trace *trace)
err = bpf_map__set_filter_pids(trace->filter_pids.map, trace->filter_pids.nr,
trace->filter_pids.entries);
}
- } else if (thread_map__pid(trace->evlist->core.threads, 0) == -1) {
+ } else if (perf_thread_map__pid(trace->evlist->core.threads, 0) == -1) {
err = trace__set_filter_loop_pids(trace);
}

@@ -3417,7 +3417,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
evlist__enable(evlist);
}

- trace->multiple_threads = thread_map__pid(evlist->core.threads, 0) == -1 ||
+ trace->multiple_threads = perf_thread_map__pid(evlist->core.threads, 0) == -1 ||
evlist->core.threads->nr > 1 ||
perf_evlist__first(evlist)->core.attr.inherit;

diff --git a/tools/perf/lib/include/perf/threadmap.h b/tools/perf/lib/include/perf/threadmap.h
index 4562952..a7c50de 100644
--- a/tools/perf/lib/include/perf/threadmap.h
+++ b/tools/perf/lib/include/perf/threadmap.h
@@ -11,6 +11,8 @@ LIBPERF_API struct perf_thread_map *perf_thread_map__new_dummy(void);

LIBPERF_API void perf_thread_map__set_pid(struct perf_thread_map *map, int thread, pid_t pid);
LIBPERF_API char *perf_thread_map__comm(struct perf_thread_map *map, int thread);
+LIBPERF_API int perf_thread_map__nr(struct perf_thread_map *threads);
+LIBPERF_API pid_t perf_thread_map__pid(struct perf_thread_map *map, int thread);

LIBPERF_API struct perf_thread_map *perf_thread_map__get(struct perf_thread_map *map);
LIBPERF_API void perf_thread_map__put(struct perf_thread_map *map);
diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map
index 3373dd5..dc4d663 100644
--- a/tools/perf/lib/libperf.map
+++ b/tools/perf/lib/libperf.map
@@ -12,6 +12,8 @@ LIBPERF_0.0.1 {
perf_thread_map__new_dummy;
perf_thread_map__set_pid;
perf_thread_map__comm;
+ perf_thread_map__nr;
+ perf_thread_map__pid;
perf_thread_map__get;
perf_thread_map__put;
perf_evsel__new;
diff --git a/tools/perf/lib/threadmap.c b/tools/perf/lib/threadmap.c
index 4865b73..e92c368 100644
--- a/tools/perf/lib/threadmap.c
+++ b/tools/perf/lib/threadmap.c
@@ -79,3 +79,13 @@ void perf_thread_map__put(struct perf_thread_map *map)
if (map && refcount_dec_and_test(&map->refcnt))
perf_thread_map__delete(map);
}
+
+int perf_thread_map__nr(struct perf_thread_map *threads)
+{
+ return threads ? threads->nr : 1;
+}
+
+pid_t perf_thread_map__pid(struct perf_thread_map *map, int thread)
+{
+ return map->map[thread].pid;
+}
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index d61773c..d803eaf 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -26,7 +26,7 @@ int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unuse

TEST_ASSERT_VAL("wrong nr", map->nr == 1);
TEST_ASSERT_VAL("wrong pid",
- thread_map__pid(map, 0) == getpid());
+ perf_thread_map__pid(map, 0) == getpid());
TEST_ASSERT_VAL("wrong comm",
perf_thread_map__comm(map, 0) &&
!strcmp(perf_thread_map__comm(map, 0), NAME));
@@ -41,7 +41,7 @@ int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unuse
thread_map__read_comms(map);

TEST_ASSERT_VAL("wrong nr", map->nr == 1);
- TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == -1);
+ TEST_ASSERT_VAL("wrong pid", perf_thread_map__pid(map, 0) == -1);
TEST_ASSERT_VAL("wrong comm",
perf_thread_map__comm(map, 0) &&
!strcmp(perf_thread_map__comm(map, 0), "dummy"));
@@ -68,7 +68,7 @@ static int process_event(struct perf_tool *tool __maybe_unused,

TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
TEST_ASSERT_VAL("wrong pid",
- thread_map__pid(threads, 0) == getpid());
+ perf_thread_map__pid(threads, 0) == getpid());
TEST_ASSERT_VAL("wrong comm",
perf_thread_map__comm(threads, 0) &&
!strcmp(perf_thread_map__comm(threads, 0), NAME));
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 6042857..094e6ce 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -132,12 +132,12 @@ void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp,
if (per_cpu) {
mp->cpu = evlist->core.cpus->map[idx];
if (evlist->core.threads)
- mp->tid = thread_map__pid(evlist->core.threads, 0);
+ mp->tid = perf_thread_map__pid(evlist->core.threads, 0);
else
mp->tid = -1;
} else {
mp->cpu = -1;
- mp->tid = thread_map__pid(evlist->core.threads, idx);
+ mp->tid = perf_thread_map__pid(evlist->core.threads, idx);
}
}

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index f433da8..332edef 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -647,7 +647,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
for (thread = 0; thread < threads->nr; ++thread) {
if (__event__synthesize_thread(comm_event, mmap_event,
fork_event, namespaces_event,
- thread_map__pid(threads, thread), 0,
+ perf_thread_map__pid(threads, thread), 0,
process, tool, machine,
mmap_data)) {
err = -1;
@@ -658,12 +658,12 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
* comm.pid is set to thread group id by
* perf_event__synthesize_comm
*/
- if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) {
+ if ((int) comm_event->comm.pid != perf_thread_map__pid(threads, thread)) {
bool need_leader = true;

/* is thread group leader in thread_map? */
for (j = 0; j < threads->nr; ++j) {
- if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) {
+ if ((int) comm_event->comm.pid == perf_thread_map__pid(threads, j)) {
need_leader = false;
break;
}
@@ -997,7 +997,7 @@ int perf_event__synthesize_thread_map2(struct perf_tool *tool,
if (!comm)
comm = (char *) "";

- entry->pid = thread_map__pid(threads, i);
+ entry->pid = perf_thread_map__pid(threads, i);
strncpy((char *) &entry->comm, comm, sizeof(entry->comm));
}

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 68b7c94..ff41568 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -316,7 +316,7 @@ static int perf_evlist__nr_threads(struct evlist *evlist,
if (evsel->system_wide)
return 1;
else
- return thread_map__nr(evlist->core.threads);
+ return perf_thread_map__nr(evlist->core.threads);
}

void evlist__disable(struct evlist *evlist)
@@ -399,7 +399,7 @@ int perf_evlist__enable_event_idx(struct evlist *evlist,
int perf_evlist__alloc_pollfd(struct evlist *evlist)
{
int nr_cpus = perf_cpu_map__nr(evlist->core.cpus);
- int nr_threads = thread_map__nr(evlist->core.threads);
+ int nr_threads = perf_thread_map__nr(evlist->core.threads);
int nfds = 0;
struct evsel *evsel;

@@ -531,7 +531,7 @@ static void perf_evlist__set_sid_idx(struct evlist *evlist,
else
sid->cpu = -1;
if (!evsel->system_wide && evlist->core.threads && thread >= 0)
- sid->tid = thread_map__pid(evlist->core.threads, thread);
+ sid->tid = perf_thread_map__pid(evlist->core.threads, thread);
else
sid->tid = -1;
}
@@ -696,7 +696,7 @@ static struct perf_mmap *perf_evlist__alloc_mmap(struct evlist *evlist,

evlist->nr_mmaps = perf_cpu_map__nr(evlist->core.cpus);
if (perf_cpu_map__empty(evlist->core.cpus))
- evlist->nr_mmaps = thread_map__nr(evlist->core.threads);
+ evlist->nr_mmaps = perf_thread_map__nr(evlist->core.threads);
map = zalloc(evlist->nr_mmaps * sizeof(struct perf_mmap));
if (!map)
return NULL;
@@ -810,7 +810,7 @@ static int perf_evlist__mmap_per_cpu(struct evlist *evlist,
{
int cpu, thread;
int nr_cpus = perf_cpu_map__nr(evlist->core.cpus);
- int nr_threads = thread_map__nr(evlist->core.threads);
+ int nr_threads = perf_thread_map__nr(evlist->core.threads);

pr_debug2("perf event ring buffer mmapped per cpu\n");
for (cpu = 0; cpu < nr_cpus; cpu++) {
@@ -838,7 +838,7 @@ static int perf_evlist__mmap_per_thread(struct evlist *evlist,
struct mmap_params *mp)
{
int thread;
- int nr_threads = thread_map__nr(evlist->core.threads);
+ int nr_threads = perf_thread_map__nr(evlist->core.threads);

pr_debug2("perf event ring buffer mmapped per thread\n");
for (thread = 0; thread < nr_threads; thread++) {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 7b43506..e983e72 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1653,7 +1653,7 @@ static bool ignore_missing_thread(struct evsel *evsel,
struct perf_thread_map *threads,
int thread, int err)
{
- pid_t ignore_pid = thread_map__pid(threads, thread);
+ pid_t ignore_pid = perf_thread_map__pid(threads, thread);

if (!evsel->ignore_missing_thread)
return false;
@@ -1816,7 +1816,7 @@ int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
int fd, group_fd;

if (!evsel->cgrp && !evsel->system_wide)
- pid = thread_map__pid(threads, thread);
+ pid = perf_thread_map__pid(threads, thread);

group_fd = get_group_fd(evsel, cpu, thread);
retry_open:
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 51771fc..78c8bc9 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1406,7 +1406,7 @@ static void python_process_stat(struct perf_stat_config *config,
for (thread = 0; thread < threads->nr; thread++) {
for (cpu = 0; cpu < cpus->nr; cpu++) {
process_stat(counter, cpus->map[cpu],
- thread_map__pid(threads, thread), tstamp,
+ perf_thread_map__pid(threads, thread), tstamp,
perf_counts(counter->counts, cpu, thread));
}
}
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 605a1fd..51d6781 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -119,7 +119,7 @@ static void aggr_printout(struct perf_stat_config *config,
config->csv_output ? 0 : 16,
perf_thread_map__comm(evsel->core.threads, id),
config->csv_output ? 0 : -8,
- thread_map__pid(evsel->core.threads, id),
+ perf_thread_map__pid(evsel->core.threads, id),
config->csv_sep);
break;
case AGGR_GLOBAL:
@@ -745,7 +745,7 @@ static void print_aggr_thread(struct perf_stat_config *config,
struct evsel *counter, char *prefix)
{
FILE *output = config->output;
- int nthreads = thread_map__nr(counter->core.threads);
+ int nthreads = perf_thread_map__nr(counter->core.threads);
int ncpus = perf_cpu_map__nr(counter->core.cpus);
int thread, sorted_threads, id;
struct perf_aggr_thread_value *buf;
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 1e6a25a..0cbfd1e 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -159,7 +159,7 @@ static void perf_evsel__free_prev_raw_counts(struct evsel *evsel)
static int perf_evsel__alloc_stats(struct evsel *evsel, bool alloc_raw)
{
int ncpus = perf_evsel__nr_cpus(evsel);
- int nthreads = thread_map__nr(evsel->core.threads);
+ int nthreads = perf_thread_map__nr(evsel->core.threads);

if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 ||
@@ -309,7 +309,7 @@ process_counter_values(struct perf_stat_config *config, struct evsel *evsel,
static int process_counter_maps(struct perf_stat_config *config,
struct evsel *counter)
{
- int nthreads = thread_map__nr(counter->core.threads);
+ int nthreads = perf_thread_map__nr(counter->core.threads);
int ncpus = perf_evsel__nr_cpus(counter);
int cpu, thread;

diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index c58385e..3e64525 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -310,7 +310,7 @@ size_t thread_map__fprintf(struct perf_thread_map *threads, FILE *fp)
size_t printed = fprintf(fp, "%d thread%s: ",
threads->nr, threads->nr > 1 ? "s" : "");
for (i = 0; i < threads->nr; ++i)
- printed += fprintf(fp, "%s%d", i ? ", " : "", thread_map__pid(threads, i));
+ printed += fprintf(fp, "%s%d", i ? ", " : "", perf_thread_map__pid(threads, i));

return printed + fprintf(fp, "\n");
}
@@ -341,7 +341,7 @@ static int get_comm(char **comm, pid_t pid)

static void comm_init(struct perf_thread_map *map, int i)
{
- pid_t pid = thread_map__pid(map, i);
+ pid_t pid = perf_thread_map__pid(map, i);
char *comm = NULL;

/* dummy pid comm initialization */
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index ba45c76..ca165fd 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -25,16 +25,6 @@ struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str);

size_t thread_map__fprintf(struct perf_thread_map *threads, FILE *fp);

-static inline int thread_map__nr(struct perf_thread_map *threads)
-{
- return threads ? threads->nr : 1;
-}
-
-static inline pid_t thread_map__pid(struct perf_thread_map *map, int thread)
-{
- return map->map[thread].pid;
-}
-
void thread_map__read_comms(struct perf_thread_map *threads);
bool thread_map__has(struct perf_thread_map *threads, pid_t pid);
int thread_map__remove(struct perf_thread_map *threads, int idx);