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#include <signal.h>
#include <stdlib.h>
#include "tests.h"
#include "debug.h"
#include "util.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;
int *p = NULL;
*hook_flags = 1234;
/* Generate a segfault, test perf_hooks__recover */
*p = 0;
}
int test__perf_hooks(struct test *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;
}
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