Fix issue 571: display descriptive names for code objects from snapshot.

src/log.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 853 matching lines @@
   if (FLAG_compress_log) {
     ASSERT(compression_helper_ != NULL);
     if (!compression_helper_->HandleMessage(&msg)) return;
   }
   msg.Append('\n');
   msg.WriteToLogFile();
 #endif
 }
 
 
+void Logger::SnapshotPositionEvent(Address addr, int pos) {
+#ifdef ENABLE_LOGGING_AND_PROFILING
+  if (!Log::IsEnabled() || !FLAG_log_snapshot_positions) return;
+  LogMessageBuilder msg;
+  msg.Append("%s,", log_events_[SNAPSHOT_POSITION_EVENT]);
+  msg.AppendAddress(addr);
+  msg.Append(",%d", pos);
+  if (FLAG_compress_log) {
+    ASSERT(compression_helper_ != NULL);
+    if (!compression_helper_->HandleMessage(&msg)) return;
+  }
+  msg.Append('\n');
+  msg.WriteToLogFile();
+#endif
+}
+
+
 void Logger::ResourceEvent(const char* name, const char* tag) {
 #ifdef ENABLE_LOGGING_AND_PROFILING
   if (!Log::IsEnabled() || !FLAG_log) return;
   LogMessageBuilder msg;
   msg.Append("%s,%s,", name, tag);
 
   uint32_t sec, usec;
   if (OS::GetUserTime(&sec, &usec) != -1) {
     msg.Append("%d,%d,", sec, usec);
   }
@@ skipping 564 matching lines @@
   // Otherwise, if the sliding state window computation has not been
   // started we do it now.
   if (sliding_state_window_ == NULL) {
     sliding_state_window_ = new SlidingStateWindow();
   }
 #endif
 }
 
 
 } }  // namespace v8::internal