Move stack unwinding logic into the runtime.

src/frames-inl.h

 // 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.
 
 #ifndef V8_FRAMES_INL_H_
 #define V8_FRAMES_INL_H_
 
 #include "src/frames.h"
 #include "src/isolate.h"
 #include "src/v8memory.h"
@@ skipping 59 matching lines @@
 inline bool StackHandler::is_catch() const {
   return kind() == CATCH;
 }
 
 
 inline bool StackHandler::is_finally() const {
   return kind() == FINALLY;
 }
 
 
+inline Context* StackHandler::context() const {
+  const int offset = StackHandlerConstants::kContextOffset;
+  return Context::cast(Memory::Object_at(address() + offset));
+}
+
+
+inline Code* StackHandler::code() const {
+  const int offset = StackHandlerConstants::kCodeOffset;
+  return Code::cast(Memory::Object_at(address() + offset));
+}
+
+
 inline StackHandler::Kind StackHandler::kind() const {
   const int offset = StackHandlerConstants::kStateIntOffset;
   return KindField::decode(Memory::unsigned_at(address() + offset));
 }
 
 
 inline unsigned StackHandler::index() const {
   const int offset = StackHandlerConstants::kStateIntOffset;
   return IndexField::decode(Memory::unsigned_at(address() + offset));
 }
 
 
+inline Address StackHandler::frame_pointer() const {
+  const int offset = StackHandlerConstants::kFPOffset;
+  return Memory::Address_at(address() + offset);
+}
+
+
 inline Object** StackHandler::context_address() const {
   const int offset = StackHandlerConstants::kContextOffset;
   return reinterpret_cast<Object**>(address() + offset);
 }
 
 
 inline Object** StackHandler::code_address() const {
   const int offset = StackHandlerConstants::kCodeOffset;
   return reinterpret_cast<Object**>(address() + offset);
 }
@@ skipping 225 matching lines @@
 inline StackFrame* SafeStackFrameIterator::frame() const {
   DCHECK(!done());
   DCHECK(frame_->is_java_script() || frame_->is_exit());
   return frame_;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_INL_H_