Adds the BreakpointRuntime stub to ARM and MIPS.

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 1982 matching lines @@
 
 
 void StubCode::GenerateTwoArgsUnoptimizedStaticCallStub(Assembler* assembler) {
   GenerateUsageCounterIncrement(assembler, T0);
   GenerateNArgsCheckInlineCacheStub(
       assembler, 2, kStaticCallMissHandlerTwoArgsRuntimeEntry);
 }
 
 
 void StubCode::GenerateBreakpointRuntimeStub(Assembler* assembler) {
-  __ Unimplemented("BreakpointRuntime stub");
+  __ Comment("BreakpointRuntime stub");
+  __ EnterStubFrame();
+  __ addiu(SP, SP, Immediate(-3 * kWordSize));
+  __ sw(S5, Address(SP, 2 * kWordSize));
+  __ sw(S4, Address(SP, 1 * kWordSize));
+  __ LoadImmediate(TMP, reinterpret_cast<intptr_t>(Object::null()));
+  __ sw(TMP, Address(SP, 0 * kWordSize));
+
+  __ CallRuntime(kBreakpointRuntimeHandlerRuntimeEntry, 0);
+
+  __ lw(S5, Address(SP, 2 * kWordSize));
+  __ lw(S4, Address(SP, 1 * kWordSize));
+  __ lw(T0, Address(SP, 0 * kWordSize));
+  __ addiu(SP, SP, Immediate(3 * kWordSize));
+  __ LeaveStubFrame();
+  __ jr(T0);
 }
 
 
 //  RA: return address (Dart code).
 //  S5: IC data (unoptimized static call).
 void StubCode::GenerateBreakpointStaticStub(Assembler* assembler) {
   __ TraceSimMsg("BreakpointStaticStub");
   // Create a stub frame as we are pushing some objects on the stack before
   // calling into the runtime.
   __ EnterStubFrame();
@@ skipping 477 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