Adding GC hooks to support LiveObjectList functionality.

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 6377)
+++ src/heap.cc	(working copy)
@@ -35,6 +35,7 @@
 #include "debug.h"
 #include "heap-profiler.h"
 #include "global-handles.h"
+#include "liveobjectlist-inl.h"

[Søren Thygesen Gjesse, 2011/01/19 08:41:33]

This suggests that the actual lol implementation lands before this change.

How about a separate change with the empty implementation from
http://codereview.chromium.org/6357005/ which can land first. Then we can land
the this change and the debugger support change and then finally the actual lol
implementation?

[marklam, 2011/01/19 10:47:37]

Done.  It's at http://codereview.chromium.org/6335009/.

 #include "mark-compact.h"
 #include "natives.h"
 #include "objects-visiting.h"
@@ -400,6 +401,8 @@
 #if defined(DEBUG) || defined(ENABLE_LOGGING_AND_PROFILING)
   ReportStatisticsBeforeGC();
 #endif
+
+  LiveObjectList::GCPrologue();
 }
 
 intptr_t Heap::SizeOfObjects() {
@@ -412,6 +415,7 @@
 }
 
 void Heap::GarbageCollectionEpilogue() {
+  LiveObjectList::GCEpilogue();
 #ifdef DEBUG
   allow_allocation(true);
   ZapFromSpace();
@@ -1066,6 +1070,8 @@
   UpdateNewSpaceReferencesInExternalStringTable(
       &UpdateNewSpaceReferenceInExternalStringTableEntry);
 
+  LiveObjectList::UpdateReferencesForScavengeGC();
+
   ASSERT(new_space_front == new_space_.top());
 
   // Set age mark.