Merge "Revert "Revert "Introduce support for hardware simulators, starting with ARM64"""

am: 4741516396

* commit '4741516396e9dbfb3afc2c1d8241a7e4e26a6302':
  Revert "Revert "Introduce support for hardware simulators, starting with ARM64""

1 files changed, 54 insertions, 0 deletions

diff --git a/runtime/code_simulator_container.h b/runtime/code_simulator_container.h
new file mode 100644
index 0000000000..655a2472f4
--- /dev/null
+++ b/runtime/code_simulator_container.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015 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_RUNTIME_CODE_SIMULATOR_CONTAINER_H_
+#define ART_RUNTIME_CODE_SIMULATOR_CONTAINER_H_
+
+#include "arch/instruction_set.h"
+#include "simulator/code_simulator.h"
+
+namespace art {
+
+// This container dynamically opens and closes libart-simulator.
+class CodeSimulatorContainer {
+ public:
+  explicit CodeSimulatorContainer(InstructionSet target_isa);
+  ~CodeSimulatorContainer();
+
+  bool CanSimulate() const {
+    return simulator_ != nullptr;
+  }
+
+  CodeSimulator* Get() {
+    DCHECK(CanSimulate());
+    return simulator_;
+  }
+
+  const CodeSimulator* Get() const {
+    DCHECK(CanSimulate());
+    return simulator_;
+  }
+
+ private:
+  void* libart_simulator_handle_;
+  CodeSimulator* simulator_;
+
+  DISALLOW_COPY_AND_ASSIGN(CodeSimulatorContainer);
+};
+
+}  // namespace art
+
+#endif  // ART_RUNTIME_CODE_SIMULATOR_CONTAINER_H_