Adds Stop to MIPS. Starts on MIPS call patcher.

runtime/vm/assembler_mips.cc

Index: runtime/vm/assembler_mips.cc
===================================================================
--- runtime/vm/assembler_mips.cc	(revision 20488)
+++ runtime/vm/assembler_mips.cc	(working copy)
@@ -56,6 +56,53 @@
   return (((instr & kBranchOffsetMask) << 16) >> 14);
 }
 
+
+void Assembler::LoadWordFromPoolOffset(Register rd, int32_t offset) {
+  ASSERT(rd != PP);
+  if (Address::CanHoldOffset(offset)) {
+    lw(rd, Address(PP, offset));
+  } else {
+    LoadImmediate(rd, offset);
+    addu(rd, rd, PP);
+    lw(rd, Address(rd));
+  }
+}
+
+
+int32_t Assembler::AddObject(const Object& obj) {
+  ASSERT(obj.IsNotTemporaryScopedHandle());
+  ASSERT(obj.IsOld());
+  if (object_pool_.IsNull()) {
+    // The object pool cannot be used in the vm isolate.
+    ASSERT(Isolate::Current() != Dart::vm_isolate());
+    object_pool_ = GrowableObjectArray::New();

[regis, 2013/03/25 23:03:40]

You should sync. You will notice that we allocate the array in the old space on
ARM.

[zra, 2013/03/25 23:39:17]

Done.

+  }
+  for (int i = 0; i < object_pool_.Length(); i++) {
+    if (object_pool_.At(i) == obj.raw()) {
+      return i;
+    }
+  }
+  object_pool_.Add(obj);

[regis, 2013/03/25 23:03:40]

ditto

[zra, 2013/03/25 23:39:17]

Done.

+  return object_pool_.Length() - 1;
+}
+
+
+int32_t Assembler::AddExternalLabel(const ExternalLabel* label) {
+  if (object_pool_.IsNull()) {
+    // The object pool cannot be used in the vm isolate.
+    ASSERT(Isolate::Current() != Dart::vm_isolate());
+    object_pool_ = GrowableObjectArray::New();

[regis, 2013/03/25 23:03:40]

ditto

[zra, 2013/03/25 23:39:17]

Done.

+  }
+  const word address = label->address();
+  ASSERT(Utils::IsAligned(address, 4));
+  // The address is stored in the object array as a RawSmi.
+  const Smi& smi = Smi::Handle(Smi::New(address >> kSmiTagShift));
+  // Do not reuse an existing entry, since each reference may be patched
+  // independently.
+  object_pool_.Add(smi);

[regis, 2013/03/25 23:03:40]

ditto

[zra, 2013/03/25 23:39:17]

Done.

+  return object_pool_.Length() - 1;
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS