65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Contributed by: Intel Corporation
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*/
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#include <dlfcn.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <unwind.h>
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#define noinline __attribute__((__noinline__))
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#ifndef __unused
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#define __unused __attribute__((__unused__))
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#endif
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static noinline _Unwind_Reason_Code cleanup_unwind_fn(int a __unused,
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_Unwind_Action action,
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_Unwind_Exception_Class b __unused,
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struct _Unwind_Exception* c __unused,
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struct _Unwind_Context* ctx __unused,
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void* e __unused) {
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if ((action & _UA_END_OF_STACK) != 0) {
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abort(); // We reached the end of the stack without executing foo_cleanup (which would have exited). Test failed.
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}
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return _URC_NO_REASON;
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}
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static void noinline foo_cleanup(char* param __unused) {
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exit(42);
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}
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static void noinline function_with_cleanup_function() {
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char c __attribute__((cleanup(foo_cleanup))) __unused;
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*((int*) 1) = 0;
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}
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static void noinline cleanup_sigsegv_handler(int param __unused) {
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struct _Unwind_Exception* exception = (struct _Unwind_Exception*) calloc(1, sizeof(*exception));
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_Unwind_ForcedUnwind(exception, cleanup_unwind_fn, 0);
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}
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void unwind_through_frame_with_cleanup_function() {
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signal(SIGSEGV, &cleanup_sigsegv_handler);
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function_with_cleanup_function();
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}
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