Adds support for collecting statistics about code and its metadata.

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/heap/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/ast/scopeinfo.h"
 #include "src/base/bits.h"
@@ skipping 4430 matching lines @@
     } else {
       ExecutionAccess access(isolate());
       isolate()->stack_guard()->RequestGC();
       V8::GetCurrentPlatform()->CallOnForegroundThread(
           reinterpret_cast<v8::Isolate*>(isolate()),
           new MemoryPressureInterruptTask(this));
     }
   }
 }
 
+void Heap::CollectCodeStatistics() {
+  PagedSpace::ResetCodeAndMetadataStatistics(isolate());
+  // We do not look for code in new space, or map space.  If code
+  // somehow ends up in those spaces, we would miss it here.
+  code_space_->CollectCodeStatistics();
+  old_space_->CollectCodeStatistics();
+  lo_space_->CollectCodeStatistics();
+}
+
 #ifdef DEBUG
 
 void Heap::Print() {
   if (!HasBeenSetUp()) return;
   isolate()->PrintStack(stdout);
   AllSpaces spaces(this);
   for (Space* space = spaces.next(); space != NULL; space = spaces.next()) {
     space->Print();
   }
 }
 
 
 void Heap::ReportCodeStatistics(const char* title) {
   PrintF(">>>>>> Code Stats (%s) >>>>>>\n", title);
-  PagedSpace::ResetCodeStatistics(isolate());
-  // We do not look for code in new space, map space, or old space.  If code
-  // somehow ends up in those spaces, we would miss it here.
-  code_space_->CollectCodeStatistics();
-  lo_space_->CollectCodeStatistics();
+  CollectCodeStatistics();
   PagedSpace::ReportCodeStatistics(isolate());
 }
 
 
 // This function expects that NewSpace's allocated objects histogram is
 // populated (via a call to CollectStatistics or else as a side effect of a
 // just-completed scavenge collection).
 void Heap::ReportHeapStatistics(const char* title) {
   USE(title);
   PrintF(">>>>>> =============== %s (%d) =============== >>>>>>\n", title,
@@ skipping 1880 matching lines @@
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
 }  // namespace internal
 }  // namespace v8