Files
erofs-linux/tools/perf/tests/perf-hooks.c
T
Ian Rogers 33f44bfd3c perf test: Rename struct test to test_suite
This is to align with kunit's terminology.

Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Sohaib Mohamed <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Brendan Higgins <[email protected]>
Cc: Daniel Latypov <[email protected]>
Cc: David Gow <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: John Garry <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-11-13 10:32:22 -03:00

50 lines
1.0 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <signal.h>
#include <stdlib.h>
#include "tests.h"
#include "debug.h"
#include "perf-hooks.h"
static void sigsegv_handler(int sig __maybe_unused)
{
pr_debug("SIGSEGV is observed as expected, try to recover.\n");
perf_hooks__recover();
signal(SIGSEGV, SIG_DFL);
raise(SIGSEGV);
exit(-1);
}
static void the_hook(void *_hook_flags)
{
int *hook_flags = _hook_flags;
*hook_flags = 1234;
/* Generate a segfault, test perf_hooks__recover */
raise(SIGSEGV);
}
static int test__perf_hooks(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
int hook_flags = 0;
signal(SIGSEGV, sigsegv_handler);
perf_hooks__set_hook("test", the_hook, &hook_flags);
perf_hooks__invoke_test();
/* hook is triggered? */
if (hook_flags != 1234) {
pr_debug("Setting failed: %d (%p)\n", hook_flags, &hook_flags);
return TEST_FAIL;
}
/* the buggy hook is removed? */
if (perf_hooks__get_hook("test"))
return TEST_FAIL;
return TEST_OK;
}
DEFINE_SUITE("perf hooks", perf_hooks);