// 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);