You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
3.4 KiB
89 lines
3.4 KiB
/*
|
|
* 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_DEX2OAT_LINKER_ARM64_RELATIVE_PATCHER_ARM64_H_
|
|
#define ART_DEX2OAT_LINKER_ARM64_RELATIVE_PATCHER_ARM64_H_
|
|
|
|
#include "base/array_ref.h"
|
|
#include "linker/arm/relative_patcher_arm_base.h"
|
|
|
|
namespace art {
|
|
|
|
namespace arm64 {
|
|
class Arm64Assembler;
|
|
} // namespace arm64
|
|
|
|
namespace linker {
|
|
|
|
class Arm64RelativePatcher final : public ArmBaseRelativePatcher {
|
|
public:
|
|
Arm64RelativePatcher(RelativePatcherThunkProvider* thunk_provider,
|
|
RelativePatcherTargetProvider* target_provider,
|
|
const Arm64InstructionSetFeatures* features);
|
|
|
|
uint32_t ReserveSpace(uint32_t offset,
|
|
const CompiledMethod* compiled_method,
|
|
MethodReference method_ref) override;
|
|
uint32_t ReserveSpaceEnd(uint32_t offset) override;
|
|
uint32_t WriteThunks(OutputStream* out, uint32_t offset) override;
|
|
void PatchCall(std::vector<uint8_t>* code,
|
|
uint32_t literal_offset,
|
|
uint32_t patch_offset,
|
|
uint32_t target_offset) override;
|
|
void PatchPcRelativeReference(std::vector<uint8_t>* code,
|
|
const LinkerPatch& patch,
|
|
uint32_t patch_offset,
|
|
uint32_t target_offset) override;
|
|
void PatchEntrypointCall(std::vector<uint8_t>* code,
|
|
const LinkerPatch& patch,
|
|
uint32_t patch_offset) override;
|
|
void PatchBakerReadBarrierBranch(std::vector<uint8_t>* code,
|
|
const LinkerPatch& patch,
|
|
uint32_t patch_offset) override;
|
|
|
|
protected:
|
|
uint32_t MaxPositiveDisplacement(const ThunkKey& key) override;
|
|
uint32_t MaxNegativeDisplacement(const ThunkKey& key) override;
|
|
|
|
private:
|
|
static uint32_t PatchAdrp(uint32_t adrp, uint32_t disp);
|
|
static void PatchBl(std::vector<uint8_t>* code, uint32_t literal_offset, uint32_t displacement);
|
|
|
|
static bool NeedsErratum843419Thunk(ArrayRef<const uint8_t> code, uint32_t literal_offset,
|
|
uint32_t patch_offset);
|
|
static void SetInsn(std::vector<uint8_t>* code, uint32_t offset, uint32_t value);
|
|
static uint32_t GetInsn(ArrayRef<const uint8_t> code, uint32_t offset);
|
|
|
|
template <typename Alloc>
|
|
static uint32_t GetInsn(std::vector<uint8_t, Alloc>* code, uint32_t offset);
|
|
|
|
const bool fix_cortex_a53_843419_;
|
|
// Map original patch_offset to thunk offset.
|
|
std::vector<std::pair<uint32_t, uint32_t>> adrp_thunk_locations_;
|
|
size_t reserved_adrp_thunks_;
|
|
size_t processed_adrp_thunks_;
|
|
std::vector<uint8_t> current_method_thunks_;
|
|
|
|
friend class Arm64RelativePatcherTest;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(Arm64RelativePatcher);
|
|
};
|
|
|
|
} // namespace linker
|
|
} // namespace art
|
|
|
|
#endif // ART_DEX2OAT_LINKER_ARM64_RELATIVE_PATCHER_ARM64_H_
|