Add v8.log visualizer page.

tools/profviz/stdio.js

 // Copyright 2013 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
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_MARKING_THREAD_H_
-#define V8_MARKING_THREAD_H_
+var processor = new ArgumentsProcessor(arguments);
+var distortion_per_entry = 0;
+var range_start_override = undefined;
+var range_end_override = undefined;
 
-#include "atomicops.h"
-#include "flags.h"
-#include "platform.h"
-#include "v8utils.h"
+if (!processor.parse()) processor.printUsageAndExit();;
+var result = processor.result();
+var distortion = parseInt(result.distortion);
+if (isNaN(distortion)) processor.printUsageAndExit();;
+// Convert picoseconds to milliseconds.
+distortion_per_entry = distortion / 1000000;
+var rangelimits = result.range.split(",");
+var range_start = parseInt(rangelimits[0]);
+var range_end = parseInt(rangelimits[1]);
+if (!isNaN(range_start)) range_start_override = range_start;
+if (!isNaN(range_end)) range_end_override = range_end;
 
-#include "spaces.h"
-
-#include "heap.h"
-
-namespace v8 {
-namespace internal {
-
-class MarkingThread : public Thread {
- public:
-  explicit MarkingThread(Isolate* isolate);
-
-  void Run();
-  void Stop();
-  void StartMarking();
-  void WaitForMarkingThread();
-
-  ~MarkingThread() {
-    delete start_marking_semaphore_;
-    delete end_marking_semaphore_;
-    delete stop_semaphore_;
-  }
-
- private:
-  Isolate* isolate_;
-  Heap* heap_;
-  Semaphore* start_marking_semaphore_;
-  Semaphore* end_marking_semaphore_;
-  Semaphore* stop_semaphore_;
-  volatile AtomicWord stop_thread_;
-  int id_;
-  static Atomic32 id_counter_;
-};
-
-} }  // namespace v8::internal
-
-#endif  // V8_MARKING_THREAD_H_
+var kResX = 1600;
+var kResY = 600;
+var psc = new PlotScriptComposer(kResX, kResY);
+psc.collectData(readline, distortion_per_entry);
+psc.findPlotRange(range_start_override, range_end_override);
+print("set terminal pngcairo size " + kResX + "," + kResY +
+      " enhanced font 'Helvetica,10'");
+psc.assembleOutput(print);