Contribution of PowerPC port.

src/ppc/frames-ppc.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
+//
+// Copyright IBM Corp. 2012, 2013. 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/v8.h"
 
-#if V8_TARGET_ARCH_ARM
+#if V8_TARGET_ARCH_PPC
 
 #include "src/assembler.h"
 #include "src/frames.h"
 #include "src/macro-assembler.h"
 
-#include "src/arm/assembler-arm-inl.h"
-#include "src/arm/assembler-arm.h"
-#include "src/arm/macro-assembler-arm.h"
+#include "src/ppc/assembler-ppc.h"
+#include "src/ppc/assembler-ppc-inl.h"
+#include "src/ppc/macro-assembler-ppc.h"
 
 namespace v8 {
 namespace internal {
 
 
 Register JavaScriptFrame::fp_register() { return v8::internal::fp; }
 Register JavaScriptFrame::context_register() { return cp; }
 Register JavaScriptFrame::constant_pool_pointer_register() {
+#if V8_OOL_CONSTANT_POOL
   DCHECK(FLAG_enable_ool_constant_pool);
-  return pp;
+  return kConstantPoolRegister;
+#else
+  UNREACHABLE();
+  return no_reg;
+#endif
 }
 
 
 Register StubFailureTrampolineFrame::fp_register() { return v8::internal::fp; }
 Register StubFailureTrampolineFrame::context_register() { return cp; }
 Register StubFailureTrampolineFrame::constant_pool_pointer_register() {
+#if V8_OOL_CONSTANT_POOL
   DCHECK(FLAG_enable_ool_constant_pool);
-  return pp;
+  return kConstantPoolRegister;
+#else
+  UNREACHABLE();
+  return no_reg;
+#endif
 }
 
 
 Object*& ExitFrame::constant_pool_slot() const {
+#if V8_OOL_CONSTANT_POOL
   DCHECK(FLAG_enable_ool_constant_pool);
   const int offset = ExitFrameConstants::kConstantPoolOffset;
   return Memory::Object_at(fp() + offset);
+#else
+  UNREACHABLE();
+  return Memory::Object_at(NULL);
+#endif
 }
+}
+}  // namespace v8::internal
 
-
-} }  // namespace v8::internal
-
-#endif  // V8_TARGET_ARCH_ARM
+#endif  // V8_TARGET_ARCH_PPC