153 lines · c
1// SPDX-License-Identifier: GPL-2.02#include <stdlib.h>3#include <string.h>4#include <sys/types.h>5#include <unistd.h>6#include <sys/prctl.h>7#include "tests.h"8#include "thread_map.h"9#include "debug.h"10#include "event.h"11#include "util/synthetic-events.h"12#include <linux/zalloc.h>13#include <perf/event.h>14#include <internal/threadmap.h>15 16struct perf_sample;17struct perf_tool;18struct machine;19 20#define NAME (const char *) "perf"21#define NAMEUL (unsigned long) NAME22 23static int test__thread_map(struct test_suite *test __maybe_unused, int subtest __maybe_unused)24{25 struct perf_thread_map *map;26 27 TEST_ASSERT_VAL("failed to set process name",28 !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));29 30 /* test map on current pid */31 map = thread_map__new_by_pid(getpid());32 TEST_ASSERT_VAL("failed to alloc map", map);33 34 thread_map__read_comms(map);35 36 TEST_ASSERT_VAL("wrong nr", map->nr == 1);37 TEST_ASSERT_VAL("wrong pid",38 perf_thread_map__pid(map, 0) == getpid());39 TEST_ASSERT_VAL("wrong comm",40 perf_thread_map__comm(map, 0) &&41 !strcmp(perf_thread_map__comm(map, 0), NAME));42 TEST_ASSERT_VAL("wrong refcnt",43 refcount_read(&map->refcnt) == 1);44 perf_thread_map__put(map);45 46 /* test dummy pid */47 map = perf_thread_map__new_dummy();48 TEST_ASSERT_VAL("failed to alloc map", map);49 50 thread_map__read_comms(map);51 52 TEST_ASSERT_VAL("wrong nr", map->nr == 1);53 TEST_ASSERT_VAL("wrong pid", perf_thread_map__pid(map, 0) == -1);54 TEST_ASSERT_VAL("wrong comm",55 perf_thread_map__comm(map, 0) &&56 !strcmp(perf_thread_map__comm(map, 0), "dummy"));57 TEST_ASSERT_VAL("wrong refcnt",58 refcount_read(&map->refcnt) == 1);59 perf_thread_map__put(map);60 return 0;61}62 63static int process_event(const struct perf_tool *tool __maybe_unused,64 union perf_event *event,65 struct perf_sample *sample __maybe_unused,66 struct machine *machine __maybe_unused)67{68 struct perf_record_thread_map *map = &event->thread_map;69 struct perf_thread_map *threads;70 71 TEST_ASSERT_VAL("wrong nr", map->nr == 1);72 TEST_ASSERT_VAL("wrong pid", map->entries[0].pid == (u64) getpid());73 TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, NAME));74 75 threads = thread_map__new_event(&event->thread_map);76 TEST_ASSERT_VAL("failed to alloc map", threads);77 78 TEST_ASSERT_VAL("wrong nr", threads->nr == 1);79 TEST_ASSERT_VAL("wrong pid",80 perf_thread_map__pid(threads, 0) == getpid());81 TEST_ASSERT_VAL("wrong comm",82 perf_thread_map__comm(threads, 0) &&83 !strcmp(perf_thread_map__comm(threads, 0), NAME));84 TEST_ASSERT_VAL("wrong refcnt",85 refcount_read(&threads->refcnt) == 1);86 perf_thread_map__put(threads);87 return 0;88}89 90static int test__thread_map_synthesize(struct test_suite *test __maybe_unused, int subtest __maybe_unused)91{92 struct perf_thread_map *threads;93 94 TEST_ASSERT_VAL("failed to set process name",95 !prctl(PR_SET_NAME, NAMEUL, 0, 0, 0));96 97 /* test map on current pid */98 threads = thread_map__new_by_pid(getpid());99 TEST_ASSERT_VAL("failed to alloc map", threads);100 101 thread_map__read_comms(threads);102 103 TEST_ASSERT_VAL("failed to synthesize map",104 !perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));105 106 perf_thread_map__put(threads);107 return 0;108}109 110static int test__thread_map_remove(struct test_suite *test __maybe_unused, int subtest __maybe_unused)111{112 struct perf_thread_map *threads;113 char *str;114 115 TEST_ASSERT_VAL("failed to allocate map string",116 asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);117 118 threads = thread_map__new_str(str, NULL, 0, false);119 free(str);120 121 TEST_ASSERT_VAL("failed to allocate thread_map",122 threads);123 124 if (verbose > 0)125 thread_map__fprintf(threads, stderr);126 127 TEST_ASSERT_VAL("failed to remove thread",128 !thread_map__remove(threads, 0));129 130 TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1);131 132 if (verbose > 0)133 thread_map__fprintf(threads, stderr);134 135 TEST_ASSERT_VAL("failed to remove thread",136 !thread_map__remove(threads, 0));137 138 TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0);139 140 if (verbose > 0)141 thread_map__fprintf(threads, stderr);142 143 TEST_ASSERT_VAL("failed to not remove thread",144 thread_map__remove(threads, 0));145 146 perf_thread_map__put(threads);147 return 0;148}149 150DEFINE_SUITE("Thread map", thread_map);151DEFINE_SUITE("Synthesize thread map", thread_map_synthesize);152DEFINE_SUITE("Remove thread map", thread_map_remove);153