xref: /openbmc/linux/tools/perf/tests/thread-map.c (revision 4f205687)
1 #include <sys/types.h>
2 #include <unistd.h>
3 #include "tests.h"
4 #include "thread_map.h"
5 #include "debug.h"
6 
7 int test__thread_map(int subtest __maybe_unused)
8 {
9 	struct thread_map *map;
10 
11 	/* test map on current pid */
12 	map = thread_map__new_by_pid(getpid());
13 	TEST_ASSERT_VAL("failed to alloc map", map);
14 
15 	thread_map__read_comms(map);
16 
17 	TEST_ASSERT_VAL("wrong nr", map->nr == 1);
18 	TEST_ASSERT_VAL("wrong pid",
19 			thread_map__pid(map, 0) == getpid());
20 	TEST_ASSERT_VAL("wrong comm",
21 			thread_map__comm(map, 0) &&
22 			!strcmp(thread_map__comm(map, 0), "perf"));
23 	TEST_ASSERT_VAL("wrong refcnt",
24 			atomic_read(&map->refcnt) == 1);
25 	thread_map__put(map);
26 
27 	/* test dummy pid */
28 	map = thread_map__new_dummy();
29 	TEST_ASSERT_VAL("failed to alloc map", map);
30 
31 	thread_map__read_comms(map);
32 
33 	TEST_ASSERT_VAL("wrong nr", map->nr == 1);
34 	TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == -1);
35 	TEST_ASSERT_VAL("wrong comm",
36 			thread_map__comm(map, 0) &&
37 			!strcmp(thread_map__comm(map, 0), "dummy"));
38 	TEST_ASSERT_VAL("wrong refcnt",
39 			atomic_read(&map->refcnt) == 1);
40 	thread_map__put(map);
41 	return 0;
42 }
43 
44 static int process_event(struct perf_tool *tool __maybe_unused,
45 			 union perf_event *event,
46 			 struct perf_sample *sample __maybe_unused,
47 			 struct machine *machine __maybe_unused)
48 {
49 	struct thread_map_event *map = &event->thread_map;
50 	struct thread_map *threads;
51 
52 	TEST_ASSERT_VAL("wrong nr",   map->nr == 1);
53 	TEST_ASSERT_VAL("wrong pid",  map->entries[0].pid == (u64) getpid());
54 	TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, "perf"));
55 
56 	threads = thread_map__new_event(&event->thread_map);
57 	TEST_ASSERT_VAL("failed to alloc map", threads);
58 
59 	TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
60 	TEST_ASSERT_VAL("wrong pid",
61 			thread_map__pid(threads, 0) == getpid());
62 	TEST_ASSERT_VAL("wrong comm",
63 			thread_map__comm(threads, 0) &&
64 			!strcmp(thread_map__comm(threads, 0), "perf"));
65 	TEST_ASSERT_VAL("wrong refcnt",
66 			atomic_read(&threads->refcnt) == 1);
67 	thread_map__put(threads);
68 	return 0;
69 }
70 
71 int test__thread_map_synthesize(int subtest __maybe_unused)
72 {
73 	struct thread_map *threads;
74 
75 	/* test map on current pid */
76 	threads = thread_map__new_by_pid(getpid());
77 	TEST_ASSERT_VAL("failed to alloc map", threads);
78 
79 	thread_map__read_comms(threads);
80 
81 	TEST_ASSERT_VAL("failed to synthesize map",
82 		!perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));
83 
84 	return 0;
85 }
86