sigchain_dummy.cc revision 7f1fa9e802efa4cc6ded166ce090f7c33d5546ba 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifdef HAVE_ANDROID_OS
18#include <android/log.h>
19#else
20#include <stdarg.h>
21#include <iostream>
22#endif
23
24#include <stdlib.h>
25#include <stdio.h>
26
27#include "sigchain.h"
28
29static void log(const char* format, ...) {
30  char buf[256];
31  va_list ap;
32  va_start(ap, format);
33  vsnprintf(buf, sizeof(buf), format, ap);
34#ifdef HAVE_ANDROID_OS
35  __android_log_write(ANDROID_LOG_ERROR, "libsigchain", buf);
36#else
37  std::cout << buf << "\n";
38#endif
39  va_end(ap);
40}
41
42extern "C" void ClaimSignalChain(int signal, struct sigaction* oldaction) {
43  log("ClaimSignalChain is not exported by the main executable.");
44  abort();
45}
46
47extern "C" void EnsureFrontOfChain(int signal, struct sigaction* expected_action) {
48  log("EnsureFrontOfChain is not exported by the main executable.");
49  abort();
50}
51
52extern "C" void UnclaimSignalChain(int signal) {
53  log("UnclaimSignalChain is not exported by the main executable.");
54  abort();
55}
56
57extern "C" void InvokeUserSignalHandler(int sig, siginfo_t* info, void* context) {
58  log("InvokeUserSignalHandler is not exported by the main executable.");
59  abort();
60}
61
62extern "C" void InitializeSignalChain() {
63  log("InitializeSignalChain is not exported by the main executable.");
64  abort();
65}
66