Fix pc to code cache so it can cope with a pointer to the start of the code

src/frames.h

Index: src/frames.h
===================================================================
--- src/frames.h	(revision 9328)
+++ src/frames.h	(working copy)
@@ -49,36 +49,36 @@
 class ThreadLocalTop;
 class Isolate;
 
-class PcToCodeCache {
+class InnerPointerToCodeCache {
  public:
-  struct PcToCodeCacheEntry {
-    Address pc;
+  struct InnerPointerToCodeCacheEntry {
+    Address inner_pointer;
     Code* code;
     SafepointEntry safepoint_entry;
   };
 
-  explicit PcToCodeCache(Isolate* isolate) : isolate_(isolate) {
+  explicit InnerPointerToCodeCache(Isolate* isolate) : isolate_(isolate) {
     Flush();
   }
 
-  Code* GcSafeFindCodeForPc(Address pc);
+  Code* GcSafeFindCodeForInnerPointer(Address pc);

[Rico, 2011/09/20 09:38:45]

address instead of pc?

[Erik Corry, 2011/09/20 09:44:11]

Done.

   Code* GcSafeCastToCode(HeapObject* object, Address pc);

[Rico, 2011/09/20 09:38:45]

same as above

[Erik Corry, 2011/09/20 09:44:11]

Done.

 
   void Flush() {
     memset(&cache_[0], 0, sizeof(cache_));
   }
 
-  PcToCodeCacheEntry* GetCacheEntry(Address pc);
+  InnerPointerToCodeCacheEntry* GetCacheEntry(Address pc);

[Rico, 2011/09/20 09:38:45]

same as above

[Erik Corry, 2011/09/20 09:44:11]

Done.

 
  private:
-  PcToCodeCacheEntry* cache(int index) { return &cache_[index]; }
+  InnerPointerToCodeCacheEntry* cache(int index) { return &cache_[index]; }
 
   Isolate* isolate_;
 
   static const int kPcToCodeCacheSize = 1024;
-  PcToCodeCacheEntry cache_[kPcToCodeCacheSize];
+  InnerPointerToCodeCacheEntry cache_[kPcToCodeCacheSize];

[Rico, 2011/09/20 09:38:45]

kAddressToCodeCacheSize?

[Erik Corry, 2011/09/20 09:44:11]

kInnerPointerToCodeCacheSize

 
-  DISALLOW_COPY_AND_ASSIGN(PcToCodeCache);
+  DISALLOW_COPY_AND_ASSIGN(InnerPointerToCodeCache);
 };