forked from Minki/linux
8fbc38aaaf
I hit a bug when running test suite without forking each test (-F option): $ perf test -Fv ... 34: Test thread map : --- start --- FAILED tests/thread-map.c:24 wrong comm ---- end ---- Test thread map: FAILED! The reason was the process name wasn't 'perf' as expected by the test, because other tests set the name as well. Setting it explicitly now. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Nilay Vaish <nilayvaish@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467113345-12669-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <sys/prctl.h>
|
|
#include "tests.h"
|
|
#include "thread_map.h"
|
|
#include "debug.h"
|
|
|
|
#define NAME (const char *) "perf"
|
|
#define NAMEUL (unsigned long) NAME
|
|
|
|
int test__thread_map(int subtest __maybe_unused)
|
|
{
|
|
struct 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",
|
|
thread_map__pid(map, 0) == getpid());
|
|
TEST_ASSERT_VAL("wrong comm",
|
|
thread_map__comm(map, 0) &&
|
|
!strcmp(thread_map__comm(map, 0), NAME));
|
|
TEST_ASSERT_VAL("wrong refcnt",
|
|
atomic_read(&map->refcnt) == 1);
|
|
thread_map__put(map);
|
|
|
|
/* test dummy pid */
|
|
map = 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", thread_map__pid(map, 0) == -1);
|
|
TEST_ASSERT_VAL("wrong comm",
|
|
thread_map__comm(map, 0) &&
|
|
!strcmp(thread_map__comm(map, 0), "dummy"));
|
|
TEST_ASSERT_VAL("wrong refcnt",
|
|
atomic_read(&map->refcnt) == 1);
|
|
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 thread_map_event *map = &event->thread_map;
|
|
struct 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",
|
|
thread_map__pid(threads, 0) == getpid());
|
|
TEST_ASSERT_VAL("wrong comm",
|
|
thread_map__comm(threads, 0) &&
|
|
!strcmp(thread_map__comm(threads, 0), NAME));
|
|
TEST_ASSERT_VAL("wrong refcnt",
|
|
atomic_read(&threads->refcnt) == 1);
|
|
thread_map__put(threads);
|
|
return 0;
|
|
}
|
|
|
|
int test__thread_map_synthesize(int subtest __maybe_unused)
|
|
{
|
|
struct 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;
|
|
}
|