| /* |
| * Copyright (C) 2014 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. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #ifdef HAVE_ANDROID_OS |
| #include <android/log.h> |
| #else |
| #include <stdarg.h> |
| #include <iostream> |
| #endif |
| |
| #include "sigchain.h" |
| |
| #define ATTRIBUTE_UNUSED __attribute__((__unused__)) |
| |
| static void log(const char* format, ...) { |
| char buf[256]; |
| va_list ap; |
| va_start(ap, format); |
| vsnprintf(buf, sizeof(buf), format, ap); |
| #ifdef HAVE_ANDROID_OS |
| __android_log_write(ANDROID_LOG_ERROR, "libsigchain", buf); |
| #else |
| std::cout << buf << "\n"; |
| #endif |
| va_end(ap); |
| } |
| |
| extern "C" void ClaimSignalChain(int signal ATTRIBUTE_UNUSED, |
| struct sigaction* oldaction ATTRIBUTE_UNUSED) { |
| log("ClaimSignalChain is not exported by the main executable."); |
| abort(); |
| } |
| |
| extern "C" void UnclaimSignalChain(int signal ATTRIBUTE_UNUSED) { |
| log("UnclaimSignalChain is not exported by the main executable."); |
| abort(); |
| } |
| |
| extern "C" void InvokeUserSignalHandler(int sig ATTRIBUTE_UNUSED, |
| siginfo_t* info ATTRIBUTE_UNUSED, |
| void* context ATTRIBUTE_UNUSED) { |
| log("InvokeUserSignalHandler is not exported by the main executable."); |
| abort(); |
| } |
| |
| extern "C" void InitializeSignalChain() { |
| log("InitializeSignalChain is not exported by the main executable."); |
| abort(); |
| } |
| |
| extern "C" void EnsureFrontOfChain(int signal ATTRIBUTE_UNUSED, |
| struct sigaction* expected_action ATTRIBUTE_UNUSED) { |
| log("EnsureFrontOfChain is not exported by the main executable."); |
| abort(); |
| } |