AArch64: Add arm64 runtime support.
Adds support for arm64 to ART. Assembler stubs are sufficient for
down calls into interpreter. JNI compiler and generics are not finished.
Basic Generic JNI functionality.
Change-Id: I4a07c79d1e037b9f5746673480e32cf456867b82
diff --git a/runtime/arch/arm64/context_arm64.h b/runtime/arch/arm64/context_arm64.h
new file mode 100644
index 0000000..d40e291
--- /dev/null
+++ b/runtime/arch/arm64/context_arm64.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2014 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_ARCH_ARM64_CONTEXT_ARM64_H_
+#define ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_
+
+#include "arch/context.h"
+#include "base/logging.h"
+#include "registers_arm64.h"
+
+namespace art {
+namespace arm64 {
+
+class Arm64Context : public Context {
+ public:
+ Arm64Context() {
+ Reset();
+ }
+
+ ~Arm64Context() {}
+
+ void Reset();
+
+ void FillCalleeSaves(const StackVisitor& fr);
+
+ void SetSP(uintptr_t new_sp) {
+ SetGPR(SP, new_sp);
+ }
+
+ void SetPC(uintptr_t new_lr) {
+ SetGPR(LR, new_lr);
+ }
+
+ virtual uintptr_t* GetGPRAddress(uint32_t reg) {
+ DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfCoreRegisters));
+ return gprs_[reg];
+ }
+
+ uintptr_t GetGPR(uint32_t reg) {
+ DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfCoreRegisters));
+ return *gprs_[reg];
+ }
+
+ void SetGPR(uint32_t reg, uintptr_t value);
+ void SmashCallerSaves();
+ void DoLongJump();
+
+ private:
+ // Pointers to register locations, initialized to NULL or the specific registers below.
+ uintptr_t* gprs_[kNumberOfCoreRegisters];
+ uint64_t * fprs_[kNumberOfDRegisters];
+ // Hold values for sp and pc if they are not located within a stack frame.
+ uintptr_t sp_, pc_;
+};
+
+} // namespace arm64
+} // namespace art
+
+#endif // ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_