ARM and MIPS changes which correspond to the initial change submitted in

runtime/vm/assembler_mips.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_ASSEMBLER_MIPS_H_
 #define VM_ASSEMBLER_MIPS_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_mips.h directly; use assembler.h instead.
 #endif
@@ skipping 157 matching lines @@
   }
   const GrowableObjectArray& object_pool() const { return object_pool_; }
   void FinalizeInstructions(const MemoryRegion& region) {
     buffer_.FinalizeInstructions(region);
   }
 
   bool use_far_branches() const {
     return FLAG_use_far_branches || use_far_branches_;
   }
 
+  void EnterFrame();
+  void LeaveFrameAndReturn();
+
   // Set up a stub frame so that the stack traversal code can easily identify
   // a stub frame.
-  void EnterStubFrame(bool uses_pp = false);
-  void LeaveStubFrame(bool uses_pp = false);
+  void EnterStubFrame(bool load_pp = false);
+  void LeaveStubFrame();
   // A separate macro for when a Ret immediately follows, so that we can use
   // the branch delay slot.
-  void LeaveStubFrameAndReturn(Register ra = RA, bool uses_pp = false);
+  void LeaveStubFrameAndReturn(Register ra = RA);
 
   // Instruction pattern from entrypoint is used in dart frame prologs
   // to set up the frame and save a PC which can be used to figure out the
   // RawInstruction object corresponding to the code running in the frame.
   // See EnterDartFrame. There are 6 instructions before we know the PC.
   static const intptr_t kEntryPointToPcMarkerOffset = 6 * Instr::kInstrSize;
 
   // Inlined allocation of an instance of class 'cls', code has no runtime
   // calls. Jump to 'failure' if the instance cannot be allocated here.
   // Allocated instance is returned in 'instance_reg'.
@@ skipping 601 matching lines @@
     delay_slot_available_ = false;  // CodePatcher expects a nop.
   }
 
   void Drop(intptr_t stack_elements) {
     ASSERT(stack_elements >= 0);
     if (stack_elements > 0) {
       addiu(SP, SP, Immediate(stack_elements * kWordSize));
     }
   }
 
+  void LoadPoolPointer() {
+    GetNextPC(TMP);  // TMP gets the address of the next instruction.
+    const intptr_t object_pool_pc_dist =
+        Instructions::HeaderSize() - Instructions::object_pool_offset() +
+        CodeSize();
+    lw(PP, Address(TMP, -object_pool_pc_dist));
+  }
+
   void LoadImmediate(Register rd, int32_t value) {
     if (Utils::IsInt(kImmBits, value)) {
       addiu(rd, ZR, Immediate(value));
     } else {
       const uint16_t low = Utils::Low16Bits(value);
       const uint16_t high = Utils::High16Bits(value);
       lui(rd, Immediate(high));
       ori(rd, rd, Immediate(low));
     }
   }
@@ skipping 459 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_MIPS_H_