Thumb2 Backend: Thumb2 changes for Deoptimization and Code Aging

src/liveedit.cc

 // Copyright 2012 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 1016 matching lines @@
   virtual void VisitPointers(Object** start, Object** end) {
     for (Object** p = start; p < end; p++) {
       if (*p == original_) {
         *p = substitution_;
       }
     }
   }
 
   virtual void VisitCodeEntry(Address entry) {
     if (Code::GetObjectFromEntryAddress(entry) == original_) {
-      Address substitution_entry = substitution_->instruction_start();
+      Address substitution_entry = substitution_->entry();
       Memory::Address_at(entry) = substitution_entry;
     }
   }
 
   virtual void VisitCodeTarget(RelocInfo* rinfo) {
     if (RelocInfo::IsCodeTarget(rinfo->rmode()) &&
         Code::GetCodeFromTargetAddress(rinfo->target_address()) == original_) {
-      Address substitution_entry = substitution_->instruction_start();
+      Address substitution_entry = substitution_->entry();
       rinfo->set_target_address(substitution_entry);
     }
   }
 
   virtual void VisitDebugTarget(RelocInfo* rinfo) {
     VisitCodeTarget(rinfo);
   }
 
  private:
   Code* original_;
@@ skipping 728 matching lines @@
     }
   }
 
   // Committing now. After this point we should return only NULL value.
 
   FixTryCatchHandler(pre_top_frame, bottom_js_frame);
   // Make sure FixTryCatchHandler is idempotent.
   ASSERT(!FixTryCatchHandler(pre_top_frame, bottom_js_frame));
 
   Handle<Code> code = Isolate::Current()->builtins()->FrameDropper_LiveEdit();
-  *top_frame_pc_address = code->entry();
+  *top_frame_pc_address = code->instruction_start();
   pre_top_frame->SetCallerFp(bottom_js_frame->fp());
 
   *restarter_frame_function_pointer =
       Debug::SetUpFrameDropperFrame(bottom_js_frame, code);
 
   ASSERT((**restarter_frame_function_pointer)->IsJSFunction());
 
   for (Address a = unused_stack_top;
       a < unused_stack_bottom;
       a += kPointerSize) {
@@ skipping 323 matching lines @@
 
 bool LiveEditFunctionTracker::IsActive(Isolate* isolate) {
   return false;
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 
 } }  // namespace v8::internal