/*
|
* Copyright (C) 2016 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_COMPILER_UTILS_X86_64_JNI_MACRO_ASSEMBLER_X86_64_H_
|
#define ART_COMPILER_UTILS_X86_64_JNI_MACRO_ASSEMBLER_X86_64_H_
|
|
#include <vector>
|
|
#include "assembler_x86_64.h"
|
#include "base/arena_containers.h"
|
#include "base/array_ref.h"
|
#include "base/enums.h"
|
#include "base/macros.h"
|
#include "offsets.h"
|
#include "utils/assembler.h"
|
#include "utils/jni_macro_assembler.h"
|
|
namespace art {
|
namespace x86_64 {
|
|
class X86_64JNIMacroAssembler final : public JNIMacroAssemblerFwd<X86_64Assembler,
|
PointerSize::k64> {
|
public:
|
explicit X86_64JNIMacroAssembler(ArenaAllocator* allocator)
|
: JNIMacroAssemblerFwd<X86_64Assembler, PointerSize::k64>(allocator) {}
|
virtual ~X86_64JNIMacroAssembler() {}
|
|
//
|
// Overridden common assembler high-level functionality
|
//
|
|
// Emit code that will create an activation on the stack
|
void BuildFrame(size_t frame_size,
|
ManagedRegister method_reg,
|
ArrayRef<const ManagedRegister> callee_save_regs,
|
const ManagedRegisterEntrySpills& entry_spills) override;
|
|
// Emit code that will remove an activation from the stack
|
void RemoveFrame(size_t frame_size,
|
ArrayRef<const ManagedRegister> callee_save_regs,
|
bool may_suspend) override;
|
|
void IncreaseFrameSize(size_t adjust) override;
|
void DecreaseFrameSize(size_t adjust) override;
|
|
// Store routines
|
void Store(FrameOffset offs, ManagedRegister src, size_t size) override;
|
void StoreRef(FrameOffset dest, ManagedRegister src) override;
|
void StoreRawPtr(FrameOffset dest, ManagedRegister src) override;
|
|
void StoreImmediateToFrame(FrameOffset dest, uint32_t imm, ManagedRegister scratch) override;
|
|
void StoreStackOffsetToThread(ThreadOffset64 thr_offs,
|
FrameOffset fr_offs,
|
ManagedRegister scratch) override;
|
|
void StoreStackPointerToThread(ThreadOffset64 thr_offs) override;
|
|
void StoreSpanning(FrameOffset dest,
|
ManagedRegister src,
|
FrameOffset in_off,
|
ManagedRegister scratch) override;
|
|
// Load routines
|
void Load(ManagedRegister dest, FrameOffset src, size_t size) override;
|
|
void LoadFromThread(ManagedRegister dest, ThreadOffset64 src, size_t size) override;
|
|
void LoadRef(ManagedRegister dest, FrameOffset src) override;
|
|
void LoadRef(ManagedRegister dest,
|
ManagedRegister base,
|
MemberOffset offs,
|
bool unpoison_reference) override;
|
|
void LoadRawPtr(ManagedRegister dest, ManagedRegister base, Offset offs) override;
|
|
void LoadRawPtrFromThread(ManagedRegister dest, ThreadOffset64 offs) override;
|
|
// Copying routines
|
void Move(ManagedRegister dest, ManagedRegister src, size_t size) override;
|
|
void CopyRawPtrFromThread(FrameOffset fr_offs,
|
ThreadOffset64 thr_offs,
|
ManagedRegister scratch) override;
|
|
void CopyRawPtrToThread(ThreadOffset64 thr_offs, FrameOffset fr_offs, ManagedRegister scratch)
|
override;
|
|
void CopyRef(FrameOffset dest, FrameOffset src, ManagedRegister scratch) override;
|
|
void Copy(FrameOffset dest, FrameOffset src, ManagedRegister scratch, size_t size) override;
|
|
void Copy(FrameOffset dest,
|
ManagedRegister src_base,
|
Offset src_offset,
|
ManagedRegister scratch,
|
size_t size) override;
|
|
void Copy(ManagedRegister dest_base,
|
Offset dest_offset,
|
FrameOffset src,
|
ManagedRegister scratch,
|
size_t size) override;
|
|
void Copy(FrameOffset dest,
|
FrameOffset src_base,
|
Offset src_offset,
|
ManagedRegister scratch,
|
size_t size) override;
|
|
void Copy(ManagedRegister dest,
|
Offset dest_offset,
|
ManagedRegister src,
|
Offset src_offset,
|
ManagedRegister scratch,
|
size_t size) override;
|
|
void Copy(FrameOffset dest,
|
Offset dest_offset,
|
FrameOffset src,
|
Offset src_offset,
|
ManagedRegister scratch,
|
size_t size) override;
|
|
void MemoryBarrier(ManagedRegister) override;
|
|
// Sign extension
|
void SignExtend(ManagedRegister mreg, size_t size) override;
|
|
// Zero extension
|
void ZeroExtend(ManagedRegister mreg, size_t size) override;
|
|
// Exploit fast access in managed code to Thread::Current()
|
void GetCurrentThread(ManagedRegister tr) override;
|
void GetCurrentThread(FrameOffset dest_offset, ManagedRegister scratch) override;
|
|
// Set up out_reg to hold a Object** into the handle scope, or to be null if the
|
// value is null and null_allowed. in_reg holds a possibly stale reference
|
// that can be used to avoid loading the handle scope entry to see if the value is
|
// null.
|
void CreateHandleScopeEntry(ManagedRegister out_reg,
|
FrameOffset handlescope_offset,
|
ManagedRegister in_reg,
|
bool null_allowed) override;
|
|
// Set up out_off to hold a Object** into the handle scope, or to be null if the
|
// value is null and null_allowed.
|
void CreateHandleScopeEntry(FrameOffset out_off,
|
FrameOffset handlescope_offset,
|
ManagedRegister scratch,
|
bool null_allowed) override;
|
|
// src holds a handle scope entry (Object**) load this into dst
|
void LoadReferenceFromHandleScope(ManagedRegister dst, ManagedRegister src) override;
|
|
// Heap::VerifyObject on src. In some cases (such as a reference to this) we
|
// know that src may not be null.
|
void VerifyObject(ManagedRegister src, bool could_be_null) override;
|
void VerifyObject(FrameOffset src, bool could_be_null) override;
|
|
// Call to address held at [base+offset]
|
void Call(ManagedRegister base, Offset offset, ManagedRegister scratch) override;
|
void Call(FrameOffset base, Offset offset, ManagedRegister scratch) override;
|
void CallFromThread(ThreadOffset64 offset, ManagedRegister scratch) override;
|
|
// Generate code to check if Thread::Current()->exception_ is non-null
|
// and branch to a ExceptionSlowPath if it is.
|
void ExceptionPoll(ManagedRegister scratch, size_t stack_adjust) override;
|
|
// Create a new label that can be used with Jump/Bind calls.
|
std::unique_ptr<JNIMacroLabel> CreateLabel() override;
|
// Emit an unconditional jump to the label.
|
void Jump(JNIMacroLabel* label) override;
|
// Emit a conditional jump to the label by applying a unary condition test to the register.
|
void Jump(JNIMacroLabel* label, JNIMacroUnaryCondition cond, ManagedRegister test) override;
|
// Code at this offset will serve as the target for the Jump call.
|
void Bind(JNIMacroLabel* label) override;
|
|
private:
|
DISALLOW_COPY_AND_ASSIGN(X86_64JNIMacroAssembler);
|
};
|
|
class X86_64JNIMacroLabel final
|
: public JNIMacroLabelCommon<X86_64JNIMacroLabel,
|
art::Label,
|
InstructionSet::kX86_64> {
|
public:
|
art::Label* AsX86_64() {
|
return AsPlatformLabel();
|
}
|
};
|
|
} // namespace x86_64
|
} // namespace art
|
|
#endif // ART_COMPILER_UTILS_X86_64_JNI_MACRO_ASSEMBLER_X86_64_H_
|
