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