1 // SPDX-License-Identifier: GPL-2.0
8 #include "thread_map.h"
11 #include "util/synthetic-events.h"
12 #include <linux/zalloc.h>
13 #include <perf/event.h>
19 #define NAME (const char *) "perf"
20 #define NAMEUL (unsigned long) NAME
22 int test__thread_map(struct test *test __maybe_unused, int subtest __maybe_unused)
24 struct perf_thread_map *map;
26 TEST_ASSERT_VAL("failed to set process name",
27 !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));
29 /* test map on current pid */
30 map = thread_map__new_by_pid(getpid());
31 TEST_ASSERT_VAL("failed to alloc map", map);
33 thread_map__read_comms(map);
35 TEST_ASSERT_VAL("wrong nr", map->nr == 1);
36 TEST_ASSERT_VAL("wrong pid",
37 perf_thread_map__pid(map, 0) == getpid());
38 TEST_ASSERT_VAL("wrong comm",
39 perf_thread_map__comm(map, 0) &&
40 !strcmp(perf_thread_map__comm(map, 0), NAME));
41 TEST_ASSERT_VAL("wrong refcnt",
42 refcount_read(&map->refcnt) == 1);
43 perf_thread_map__put(map);
46 map = perf_thread_map__new_dummy();
47 TEST_ASSERT_VAL("failed to alloc map", map);
49 thread_map__read_comms(map);
51 TEST_ASSERT_VAL("wrong nr", map->nr == 1);
52 TEST_ASSERT_VAL("wrong pid", perf_thread_map__pid(map, 0) == -1);
53 TEST_ASSERT_VAL("wrong comm",
54 perf_thread_map__comm(map, 0) &&
55 !strcmp(perf_thread_map__comm(map, 0), "dummy"));
56 TEST_ASSERT_VAL("wrong refcnt",
57 refcount_read(&map->refcnt) == 1);
58 perf_thread_map__put(map);
62 static int process_event(struct perf_tool *tool __maybe_unused,
63 union perf_event *event,
64 struct perf_sample *sample __maybe_unused,
65 struct machine *machine __maybe_unused)
67 struct perf_record_thread_map *map = &event->thread_map;
68 struct perf_thread_map *threads;
70 TEST_ASSERT_VAL("wrong nr", map->nr == 1);
71 TEST_ASSERT_VAL("wrong pid", map->entries[0].pid == (u64) getpid());
72 TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, NAME));
74 threads = thread_map__new_event(&event->thread_map);
75 TEST_ASSERT_VAL("failed to alloc map", threads);
77 TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
78 TEST_ASSERT_VAL("wrong pid",
79 perf_thread_map__pid(threads, 0) == getpid());
80 TEST_ASSERT_VAL("wrong comm",
81 perf_thread_map__comm(threads, 0) &&
82 !strcmp(perf_thread_map__comm(threads, 0), NAME));
83 TEST_ASSERT_VAL("wrong refcnt",
84 refcount_read(&threads->refcnt) == 1);
85 perf_thread_map__put(threads);
89 int test__thread_map_synthesize(struct test *test __maybe_unused, int subtest __maybe_unused)
91 struct perf_thread_map *threads;
93 TEST_ASSERT_VAL("failed to set process name",
94 !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));
96 /* test map on current pid */
97 threads = thread_map__new_by_pid(getpid());
98 TEST_ASSERT_VAL("failed to alloc map", threads);
100 thread_map__read_comms(threads);
102 TEST_ASSERT_VAL("failed to synthesize map",
103 !perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));
105 perf_thread_map__put(threads);
109 int test__thread_map_remove(struct test *test __maybe_unused, int subtest __maybe_unused)
111 struct perf_thread_map *threads;
114 TEST_ASSERT_VAL("failed to allocate map string",
115 asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);
117 threads = thread_map__new_str(str, NULL, 0, false);
120 TEST_ASSERT_VAL("failed to allocate thread_map",
124 thread_map__fprintf(threads, stderr);
126 TEST_ASSERT_VAL("failed to remove thread",
127 !thread_map__remove(threads, 0));
129 TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1);
132 thread_map__fprintf(threads, stderr);
134 TEST_ASSERT_VAL("failed to remove thread",
135 !thread_map__remove(threads, 0));
137 TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0);
140 thread_map__fprintf(threads, stderr);
142 TEST_ASSERT_VAL("failed to not remove thread",
143 thread_map__remove(threads, 0));
145 perf_thread_map__put(threads);