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1// SPDX-License-Identifier: GPL-2.02#include <signal.h>3#include <stdlib.h>4 5#include "tests.h"6#include "debug.h"7#include "perf-hooks.h"8 9static void sigsegv_handler(int sig __maybe_unused)10{11 pr_debug("SIGSEGV is observed as expected, try to recover.\n");12 perf_hooks__recover();13 signal(SIGSEGV, SIG_DFL);14 raise(SIGSEGV);15 exit(-1);16}17 18 19static void the_hook(void *_hook_flags)20{21 int *hook_flags = _hook_flags;22 23 *hook_flags = 1234;24 25 /* Generate a segfault, test perf_hooks__recover */26 raise(SIGSEGV);27}28 29static int test__perf_hooks(struct test_suite *test __maybe_unused, int subtest __maybe_unused)30{31 int hook_flags = 0;32 33 signal(SIGSEGV, sigsegv_handler);34 perf_hooks__set_hook("test", the_hook, &hook_flags);35 perf_hooks__invoke_test();36 37 /* hook is triggered? */38 if (hook_flags != 1234) {39 pr_debug("Setting failed: %d (%p)\n", hook_flags, &hook_flags);40 return TEST_FAIL;41 }42 43 /* the buggy hook is removed? */44 if (perf_hooks__get_hook("test"))45 return TEST_FAIL;46 return TEST_OK;47}48 49DEFINE_SUITE("perf hooks", perf_hooks);50