fb71c86cc8
Check that it is not needed and remove, fixing up some fallout for places where it was only serving to get something else. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-9h6dg6lsqe2usyqjh5rrues4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
49 lines
996 B
C
49 lines
996 B
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;
|
|
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;
|
|
}
|