Third codegen test passing for simulated MIPS.

runtime/vm/stack_frame_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/stack_frame.h"
 
 namespace dart {
 
+static const int kPcAddressOffsetFromSp = -2 * kWordSize;
+static const int kEntrypointMarkerOffsetFromFp = 2 * kWordSize;
+static const int kSpOffsetFromPreviousFp = 3 * kWordSize;
+
+
 intptr_t StackFrame::PcAddressOffsetFromSp() {
-  UNIMPLEMENTED();
-  return 0;
+  return kPcAddressOffsetFromSp;
 }
 
 
 intptr_t StackFrame::EntrypointMarkerOffsetFromFp() {
-  UNIMPLEMENTED();
-  return 0;
+  return kEntrypointMarkerOffsetFromFp;
 }
 
 
 uword StackFrame::GetCallerFp() const {
-  UNIMPLEMENTED();
-  return 0;
+  return *(reinterpret_cast<uword*>(fp()));
 }
 
 
 uword StackFrame::GetCallerSp() const {
-  UNIMPLEMENTED();
-  return 0;
+  return fp() + kSpOffsetFromPreviousFp;
 }
 
 
 intptr_t EntryFrame::ExitLinkOffset() const {
   UNIMPLEMENTED();
   return 0;
 }
 
 
 intptr_t EntryFrame::SavedContextOffset() const {
   UNIMPLEMENTED();
   return 0;
 }
 
 
 void StackFrameIterator::SetupLastExitFrameData() {
-  UNIMPLEMENTED();
+  Isolate* current = Isolate::Current();
+  uword exit_marker = current->top_exit_frame_info();
+  frames_.fp_ = exit_marker;
 }
 
 
 void StackFrameIterator::SetupNextExitFrameData() {
   UNIMPLEMENTED();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS