mirror of https://gitee.com/openkylin/linux.git
45 lines
815 B
C
45 lines
815 B
C
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#include <signal.h>
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#include <stdlib.h>
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#include "tests.h"
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#include "debug.h"
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#include "util.h"
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#include "perf-hooks.h"
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static void sigsegv_handler(int sig __maybe_unused)
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{
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pr_debug("SIGSEGV is observed as expected, try to recover.\n");
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perf_hooks__recover();
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signal(SIGSEGV, SIG_DFL);
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raise(SIGSEGV);
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exit(-1);
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}
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static int hook_flags;
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static void the_hook(void)
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{
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int *p = NULL;
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hook_flags = 1234;
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/* Generate a segfault, test perf_hooks__recover */
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*p = 0;
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}
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int test__perf_hooks(int subtest __maybe_unused)
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{
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signal(SIGSEGV, sigsegv_handler);
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perf_hooks__set_hook("test", the_hook);
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perf_hooks__invoke_test();
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/* hook is triggered? */
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if (hook_flags != 1234)
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return TEST_FAIL;
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/* the buggy hook is removed? */
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if (perf_hooks__get_hook("test"))
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return TEST_FAIL;
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return TEST_OK;
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}
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