Bug fix and status file updates for MIPS HW.

runtime/vm/stub_code_mips.cc

 // 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.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 2156 matching lines @@
   __ delay_slot()->mov(V0, SP);
 }
 
 
 // Jump to the exception or error handler.
 // RA: return address.
 // A0: program_counter.
 // A1: stack_pointer.
 // A2: frame_pointer.
 // A3: error object.
-// SP: address of stacktrace object.
+// SP + 4*kWordSize: address of stacktrace object.
 // Does not return.
 void StubCode::GenerateJumpToExceptionHandlerStub(Assembler* assembler) {
   ASSERT(kExceptionObjectReg == V0);
   ASSERT(kStackTraceObjectReg == V1);
   __ mov(V0, A3);  // Exception object.
-  __ lw(V1, Address(SP, 0));  // StackTrace object.
+  // MIPS ABI reserves stack space for all arguments. The StackTrace object is
+  // the last of five arguments, so it is first pushed on the stack.
+  __ lw(V1, Address(SP, 4 * kWordSize));  // StackTrace object.
   __ mov(FP, A2);  // Frame_pointer.
   __ jr(A0);  // Jump to the exception handler code.
   __ delay_slot()->mov(SP, A1);  // Stack pointer.
 }
 
 
 // Implements equality operator when one of the arguments is null
 // (identity check) and updates ICData if necessary.
 // RA: return address.
 // A1: left argument.
@@ skipping 267 matching lines @@
   __ lw(left, Address(SP, 1 * kWordSize));
   __ lw(temp2, Address(SP, 2 * kWordSize));
   __ lw(temp1, Address(SP, 3 * kWordSize));
   __ Ret();
   __ delay_slot()->addiu(SP, SP, Immediate(4 * kWordSize));
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS