mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-02 16:44:10 +08:00
30f29bae91
The tool pointer (to a struct largely of function pointers) is passed around but is unchanged except at initialization. Change parameter and variable types to be const to lower the possibilities of what could happen with a tool. Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Leo Yan <leo.yan@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Sun Haiyong <sunhaiyong@loongson.cn> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: Yicong Yang <yangyicong@hisilicon.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20240812204720.631678-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
// 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 <linux/zalloc.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, NULL, 0, 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);
|