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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152// 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 <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(const 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, /*tid=*/NULL, /*all_threads=*/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);