Sampling profiler

runtime/vm/signal_handler_android.cc

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#include "vm/globals.h"
+#include "vm/signal_handler.h"
+#if defined(TARGET_OS_ANDROID)
+
+namespace dart {
+
+uintptr_t SignalHandler::GetProgramCounter(const mcontext_t& mcontext) {
+  UNIMPLEMENTED();
+}
+
+
+uintptr_t SignalHandler::GetFramePointer(const mcontext_t& mcontext) {
+  UNIMPLEMENTED();
+}
+
+
+uintptr_t SignalHandler::GetStackPointer(const mcontext_t& mcontext) {
+  UNIMPLEMENTED();
+}
+
+
+void SignalHandler::Install(SignalAction action) {
+  UNIMPLEMENTED();
+}
+
+
+ScopedSignalBlocker::ScopedSignalBlocker() {
+  sigset_t set;
+  sigemptyset(&set);
+  sigaddset(&set, SIGPROF);
+  pthread_sigmask(SIG_SETMASK, &set, &old_);
+}
+
+
+ScopedSignalBlocker::~ScopedSignalBlocker() {
+  pthread_sigmask(SIG_SETMASK, &old_, NULL);
+}
+
+}  // namespace dart
+
+#endif  // defined(TARGET_OS_ANDROID)