Sampling profiler

runtime/vm/native_symbol_macos.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"
+#if defined(TARGET_OS_MACOS)
+
+#include "vm/native_symbol.h"
+#include "vm/thread.h"
+
+#include <dlfcn.h>  // NOLINT
+
+namespace dart {
+
+void NativeSymbolResolver::InitOnce() {
+}
+
+
+void NativeSymbolResolver::ShutdownOnce() {
+}
+
+
+char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc) {
+  Dl_info info;
+  int r = dladdr(reinterpret_cast<void*>(pc), &info);
+  if (r == 0) {
+    return NULL;
+  }
+  if (info.dli_sname == NULL) {
+    return NULL;
+  }
+  return strdup(info.dli_sname);
+}
+
+
+void NativeSymbolResolver::FreeSymbolName(char* name) {
+  free(name);
+}
+
+
+}  // namespace dart
+
+#endif  // defined(TARGET_OS_MACOS)