linux/tools/perf/tests/thread-map.c
Ian Rogers fd3f518fc1 perf thread_map: Reduce exposure of libperf internal API
Remove unnecessary include of internal threadmap.h and refcount.h in
thread_map.h. Switch to using public APIs when possible or including
the internal header file in the C file. Fix a transitive dependency in
openat-syscall.c broken by the clean up.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: bpf@vger.kernel.org
Link: http://lore.kernel.org/lkml/20221109184914.1357295-13-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 12:17:15 -03:00

153 lines
4.2 KiB
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 "util/synthetic-events.h"
#include <linux/zalloc.h>
#include <perf/event.h>
#include <internal/threadmap.h>
struct perf_sample;
struct perf_tool;
struct machine;
#define NAME (const char *) "perf"
#define NAMEUL (unsigned long) NAME
static int test__thread_map(struct test_suite *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;
}
static int test__thread_map_synthesize(struct test_suite *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));
perf_thread_map__put(threads);
return 0;
}
static int test__thread_map_remove(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
struct perf_thread_map *threads;
char *str;
TEST_ASSERT_VAL("failed to allocate map string",
asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);
threads = thread_map__new_str(str, NULL, 0, false);
free(str);
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));
perf_thread_map__put(threads);
return 0;
}
DEFINE_SUITE("Thread map", thread_map);
DEFINE_SUITE("Synthesize thread map", thread_map_synthesize);
DEFINE_SUITE("Remove thread map", thread_map_remove);