Move disassembler out of runtime.

Bug: 9877500.
Change-Id: Ica6d9f5ecfd20c86e5230a2213827bd78cd29a29
diff --git a/disassembler/disassembler.h b/disassembler/disassembler.h
new file mode 100644
index 0000000..7547ab7
--- /dev/null
+++ b/disassembler/disassembler.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+#ifndef ART_DISASSEMBLER_DISASSEMBLER_H_
+#define ART_DISASSEMBLER_DISASSEMBLER_H_
+
+#include <stdint.h>
+
+#include <iosfwd>
+
+#include "base/macros.h"
+#include "instruction_set.h"
+
+namespace art {
+
+class Disassembler {
+ public:
+  static Disassembler* Create(InstructionSet instruction_set);
+  virtual ~Disassembler() {}
+
+  // Dump a single instruction returning the length of that instruction.
+  virtual size_t Dump(std::ostream& os, const uint8_t* begin) = 0;
+  // Dump instructions within a range.
+  virtual void Dump(std::ostream& os, const uint8_t* begin, const uint8_t* end) = 0;
+
+ protected:
+  Disassembler() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(Disassembler);
+};
+
+}  // namespace art
+
+#endif  // ART_DISASSEMBLER_DISASSEMBLER_H_