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79 lines
2.8 KiB
79 lines
2.8 KiB
7 months ago
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_DEX2OAT_LINKER_ARM_RELATIVE_PATCHER_THUMB2_H_
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#define ART_DEX2OAT_LINKER_ARM_RELATIVE_PATCHER_THUMB2_H_
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#include "arch/arm/registers_arm.h"
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#include "base/array_ref.h"
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#include "linker/arm/relative_patcher_arm_base.h"
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namespace art {
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namespace arm {
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class ArmVIXLAssembler;
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} // namespace arm
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namespace linker {
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class Thumb2RelativePatcher final : public ArmBaseRelativePatcher {
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public:
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explicit Thumb2RelativePatcher(RelativePatcherThunkProvider* thunk_provider,
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RelativePatcherTargetProvider* target_provider);
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void PatchCall(std::vector<uint8_t>* code,
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uint32_t literal_offset,
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uint32_t patch_offset,
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uint32_t target_offset) override;
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void PatchPcRelativeReference(std::vector<uint8_t>* code,
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const LinkerPatch& patch,
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uint32_t patch_offset,
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uint32_t target_offset) override;
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void PatchEntrypointCall(std::vector<uint8_t>* code,
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const LinkerPatch& patch,
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uint32_t patch_offset) override;
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void PatchBakerReadBarrierBranch(std::vector<uint8_t>* code,
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const LinkerPatch& patch,
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uint32_t patch_offset) override;
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protected:
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uint32_t MaxPositiveDisplacement(const ThunkKey& key) override;
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uint32_t MaxNegativeDisplacement(const ThunkKey& key) override;
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private:
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static void PatchBl(std::vector<uint8_t>* code, uint32_t literal_offset, uint32_t displacement);
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static void SetInsn32(std::vector<uint8_t>* code, uint32_t offset, uint32_t value);
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static uint32_t GetInsn32(ArrayRef<const uint8_t> code, uint32_t offset);
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template <typename Vector>
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static uint32_t GetInsn32(Vector* code, uint32_t offset);
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static uint32_t GetInsn16(ArrayRef<const uint8_t> code, uint32_t offset);
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template <typename Vector>
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static uint32_t GetInsn16(Vector* code, uint32_t offset);
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friend class Thumb2RelativePatcherTest;
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DISALLOW_COPY_AND_ASSIGN(Thumb2RelativePatcher);
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};
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} // namespace linker
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} // namespace art
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#endif // ART_DEX2OAT_LINKER_ARM_RELATIVE_PATCHER_THUMB2_H_
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