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Diffstat (limited to '')
-rw-r--r-- | tools/perf/tests/perf-hooks.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tools/perf/tests/perf-hooks.c b/tools/perf/tests/perf-hooks.c new file mode 100644 index 000000000..78cdeb896 --- /dev/null +++ b/tools/perf/tests/perf-hooks.c @@ -0,0 +1,49 @@ +// 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); |