1 files changed, 59 insertions, 0 deletions
diff --git a/sigchainlib/sigchain_dummy.cc b/sigchainlib/sigchain_dummy.cc
new file mode 100644
index 0000000..7176f05
--- /dev/null
+++ b/sigchainlib/sigchain_dummy.cc
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ */
+
+#ifdef HAVE_ANDROID_OS
+#include <android/log.h>
+#else
+#include <stdarg.h>
+#include <iostream>
+#endif
+
+#include <stdlib.h>
+
+#include "sigchain.h"
+
+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, struct sigaction* oldaction) {
+  log("ClaimSignalChain is not exported by the main executable.");
+  abort();
+}
+
+extern "C" void UnclaimSignalChain(int signal) {
+  log("UnclaimSignalChain is not exported by the main executable.");
+  abort();
+}
+
+extern "C" void InvokeUserSignalHandler(int sig, siginfo_t* info, void* context) {
+  log("InvokeUserSignalHandler is not exported by the main executable.");
+  abort();
+}
+
+extern "C" void InitializeSignalChain() {
+  log("InitializeSignalChain is not exported by the main executable.");
+  abort();
+}