Portable refactorings.

Separate quick from portable entrypoints.
Move architectural dependencies into arch.

Change-Id: I9adbc0a9782e2959fdc3308215f01e3107632b7c
diff --git a/runtime/arch/arm/thread_arm.cc b/runtime/arch/arm/thread_arm.cc
new file mode 100644
index 0000000..ea908be
--- /dev/null
+++ b/runtime/arch/arm/thread_arm.cc
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "thread.h"
+
+#include "asm_support_arm.h"
+#include "base/logging.h"
+
+namespace art {
+
+void Thread::InitCpu() {
+  CHECK_EQ(THREAD_FLAGS_OFFSET, OFFSETOF_MEMBER(Thread, state_and_flags_));
+  CHECK_EQ(THREAD_EXCEPTION_OFFSET, OFFSETOF_MEMBER(Thread, exception_));
+}
+
+}  // namespace art