threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
49 lines
1006 B
C
49 lines
1006 B
C
// SPDX-License-Identifier: GPL-2.0
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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 void the_hook(void *_hook_flags)
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{
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int *hook_flags = _hook_flags;
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*hook_flags = 1234;
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/* Generate a segfault, test perf_hooks__recover */
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raise(SIGSEGV);
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}
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int test__perf_hooks(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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int hook_flags = 0;
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signal(SIGSEGV, sigsegv_handler);
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perf_hooks__set_hook("test", the_hook, &hook_flags);
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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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pr_debug("Setting failed: %d (%p)\n", hook_flags, &hook_flags);
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return TEST_FAIL;
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}
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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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