[linux-2.6-block.git] / tools / perf / tests / thread-map.c

// SPDX-License-Identifier: GPL-2.0
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/prctl.h>
#include "tests.h"
#include "thread_map.h"
#include "debug.h"
#include "event.h"
#include <linux/zalloc.h>
#include <perf/event.h>

struct perf_sample;
struct perf_tool;
struct machine;

#define NAME	(const char *) "perf"
#define NAMEUL	(unsigned long) NAME

int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unused)
{
	struct perf_thread_map *map;

	TEST_ASSERT_VAL("failed to set process name",
			!prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));

	/* test map on current pid */
	map = thread_map__new_by_pid(getpid());
	TEST_ASSERT_VAL("failed to alloc map", map);

	thread_map__read_comms(map);

	TEST_ASSERT_VAL("wrong nr", map->nr == 1);
	TEST_ASSERT_VAL("wrong pid",
			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));
	TEST_ASSERT_VAL("wrong refcnt",
			refcount_read(&map->refcnt) == 1);
	perf_thread_map__put(map);

	/* test dummy pid */
	map = perf_thread_map__new_dummy();
	TEST_ASSERT_VAL("failed to alloc map", map);

	thread_map__read_comms(map);

	TEST_ASSERT_VAL("wrong nr", map->nr == 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"));
	TEST_ASSERT_VAL("wrong refcnt",
			refcount_read(&map->refcnt) == 1);
	perf_thread_map__put(map);
	return 0;
}

static int process_event(struct perf_tool *tool __maybe_unused,
			 union perf_event *event,
			 struct perf_sample *sample __maybe_unused,
			 struct machine *machine __maybe_unused)
{
	struct perf_record_thread_map *map = &event->thread_map;
	struct perf_thread_map *threads;

	TEST_ASSERT_VAL("wrong nr",   map->nr == 1);
	TEST_ASSERT_VAL("wrong pid",  map->entries[0].pid == (u64) getpid());
	TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, NAME));

	threads = thread_map__new_event(&event->thread_map);
	TEST_ASSERT_VAL("failed to alloc map", threads);

	TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
	TEST_ASSERT_VAL("wrong pid",
			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));
	TEST_ASSERT_VAL("wrong refcnt",
			refcount_read(&threads->refcnt) == 1);
	perf_thread_map__put(threads);
	return 0;
}

int test__thread_map_synthesize(struct test *test __maybe_unused, int subtest __maybe_unused)
{
	struct perf_thread_map *threads;

	TEST_ASSERT_VAL("failed to set process name",
			!prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));

	/* test map on current pid */
	threads = thread_map__new_by_pid(getpid());
	TEST_ASSERT_VAL("failed to alloc map", threads);

	thread_map__read_comms(threads);

	TEST_ASSERT_VAL("failed to synthesize map",
		!perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));

	return 0;
}

int test__thread_map_remove(struct test *test __maybe_unused, int subtest __maybe_unused)
{
	struct perf_thread_map *threads;
	char *str;
	int i;

	TEST_ASSERT_VAL("failed to allocate map string",
			asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);

	threads = thread_map__new_str(str, NULL, 0, false);

	TEST_ASSERT_VAL("failed to allocate thread_map",
			threads);

	if (verbose > 0)
		thread_map__fprintf(threads, stderr);

	TEST_ASSERT_VAL("failed to remove thread",
			!thread_map__remove(threads, 0));

	TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1);

	if (verbose > 0)
		thread_map__fprintf(threads, stderr);

	TEST_ASSERT_VAL("failed to remove thread",
			!thread_map__remove(threads, 0));

	TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0);

	if (verbose > 0)
		thread_map__fprintf(threads, stderr);

	TEST_ASSERT_VAL("failed to not remove thread",
			thread_map__remove(threads, 0));

	for (i = 0; i < threads->nr; i++)
		zfree(&threads->map[i].comm);

	free(threads);
	return 0;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
38af91f0	2	#include <stdlib.h>
8520a98d	3	#include <string.h>
134aa44f JO	4	#include <sys/types.h>
134aa44f JO	5	#include <unistd.h>
8fbc38aa	6	#include <sys/prctl.h>
134aa44f JO	7	#include "tests.h"
	8	#include "thread_map.h"
	9	#include "debug.h"
8520a98d	10	#include "event.h"
d8f9da24	11	#include <linux/zalloc.h>
8520a98d ACM	12	#include <perf/event.h>
	13
	14	struct perf_sample;
	15	struct perf_tool;
	16	struct machine;
134aa44f	17
8fbc38aa JO	18	#define NAME (const char *) "perf"
	19	#define NAMEUL (unsigned long) NAME
	20
81f17c90	21	int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unused)
134aa44f	22	{
9749b90e	23	struct perf_thread_map *map;
134aa44f	24
8fbc38aa JO	25	TEST_ASSERT_VAL("failed to set process name",
	26	!prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));
	27
134aa44f JO	28	/* test map on current pid */
	29	map = thread_map__new_by_pid(getpid());
	30	TEST_ASSERT_VAL("failed to alloc map", map);
	31
	32	thread_map__read_comms(map);
	33
	34	TEST_ASSERT_VAL("wrong nr", map->nr == 1);
	35	TEST_ASSERT_VAL("wrong pid",
a2f354e3	36	perf_thread_map__pid(map, 0) == getpid());
134aa44f	37	TEST_ASSERT_VAL("wrong comm",
7836e52e JO	38	perf_thread_map__comm(map, 0) &&
7836e52e JO	39	!strcmp(perf_thread_map__comm(map, 0), NAME));
35318d20	40	TEST_ASSERT_VAL("wrong refcnt",
364fed35	41	refcount_read(&map->refcnt) == 1);
7836e52e	42	perf_thread_map__put(map);
134aa44f JO	43
134aa44f JO	44	/* test dummy pid */
4b49cce2	45	map = perf_thread_map__new_dummy();
134aa44f JO	46	TEST_ASSERT_VAL("failed to alloc map", map);
	47
	48	thread_map__read_comms(map);
	49
	50	TEST_ASSERT_VAL("wrong nr", map->nr == 1);
a2f354e3	51	TEST_ASSERT_VAL("wrong pid", perf_thread_map__pid(map, 0) == -1);
134aa44f	52	TEST_ASSERT_VAL("wrong comm",
7836e52e JO	53	perf_thread_map__comm(map, 0) &&
7836e52e JO	54	!strcmp(perf_thread_map__comm(map, 0), "dummy"));
35318d20	55	TEST_ASSERT_VAL("wrong refcnt",
364fed35	56	refcount_read(&map->refcnt) == 1);
7836e52e	57	perf_thread_map__put(map);
134aa44f JO	58	return 0;
134aa44f JO	59	}
99471c96 JO	60
	61	static int process_event(struct perf_tool *tool __maybe_unused,
	62	union perf_event *event,
	63	struct perf_sample *sample __maybe_unused,
	64	struct machine *machine __maybe_unused)
	65	{
72932371	66	struct perf_record_thread_map *map = &event->thread_map;
9749b90e	67	struct perf_thread_map *threads;
99471c96 JO	68
	69	TEST_ASSERT_VAL("wrong nr", map->nr == 1);
	70	TEST_ASSERT_VAL("wrong pid", map->entries[0].pid == (u64) getpid());
8fbc38aa	71	TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, NAME));
59660942 JO	72
	73	threads = thread_map__new_event(&event->thread_map);
	74	TEST_ASSERT_VAL("failed to alloc map", threads);
	75
	76	TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
	77	TEST_ASSERT_VAL("wrong pid",
a2f354e3	78	perf_thread_map__pid(threads, 0) == getpid());
59660942	79	TEST_ASSERT_VAL("wrong comm",
7836e52e JO	80	perf_thread_map__comm(threads, 0) &&
7836e52e JO	81	!strcmp(perf_thread_map__comm(threads, 0), NAME));
59660942	82	TEST_ASSERT_VAL("wrong refcnt",
364fed35	83	refcount_read(&threads->refcnt) == 1);
7836e52e	84	perf_thread_map__put(threads);
99471c96 JO	85	return 0;
	86	}
	87
81f17c90	88	int test__thread_map_synthesize(struct test *test __maybe_unused, int subtest __maybe_unused)
99471c96	89	{
9749b90e	90	struct perf_thread_map *threads;
99471c96	91
8fbc38aa JO	92	TEST_ASSERT_VAL("failed to set process name",
	93	!prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));
	94
99471c96 JO	95	/* test map on current pid */
	96	threads = thread_map__new_by_pid(getpid());
	97	TEST_ASSERT_VAL("failed to alloc map", threads);
	98
	99	thread_map__read_comms(threads);
	100
	101	TEST_ASSERT_VAL("failed to synthesize map",
	102	!perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));
	103
	104	return 0;
	105	}
38af91f0	106
81f17c90	107	int test__thread_map_remove(struct test *test __maybe_unused, int subtest __maybe_unused)
38af91f0	108	{
9749b90e	109	struct perf_thread_map *threads;
38af91f0 JO	110	char *str;
	111	int i;
	112
	113	TEST_ASSERT_VAL("failed to allocate map string",
	114	asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);
	115
73c0ca1e	116	threads = thread_map__new_str(str, NULL, 0, false);
38af91f0 JO	117
	118	TEST_ASSERT_VAL("failed to allocate thread_map",
	119	threads);
	120
bb963e16	121	if (verbose > 0)
38af91f0 JO	122	thread_map__fprintf(threads, stderr);
	123
	124	TEST_ASSERT_VAL("failed to remove thread",
	125	!thread_map__remove(threads, 0));
	126
	127	TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1);
	128
bb963e16	129	if (verbose > 0)
38af91f0 JO	130	thread_map__fprintf(threads, stderr);
	131
	132	TEST_ASSERT_VAL("failed to remove thread",
	133	!thread_map__remove(threads, 0));
	134
	135	TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0);
	136
bb963e16	137	if (verbose > 0)
38af91f0 JO	138	thread_map__fprintf(threads, stderr);
	139
	140	TEST_ASSERT_VAL("failed to not remove thread",
	141	thread_map__remove(threads, 0));
	142
	143	for (i = 0; i < threads->nr; i++)
d8f9da24	144	zfree(&threads->map[i].comm);
38af91f0 JO	145
	146	free(threads);
	147	return 0;
	148	}