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/*
* 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_X86_RELATIVE_PATCHER_X86_BASE_H_
#define ART_DEX2OAT_LINKER_X86_RELATIVE_PATCHER_X86_BASE_H_
#include "linker/relative_patcher.h"
namespace art {
namespace linker {
class X86BaseRelativePatcher : public RelativePatcher {
public:
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;
std::vector<debug::MethodDebugInfo> GenerateThunkDebugInfo(uint32_t executable_offset) override;
protected:
X86BaseRelativePatcher() { }
// PC displacement from patch location; the base address of x86/x86-64 relative
// calls and x86-64 RIP-relative addressing is the PC of the next instruction and
// the patch location is 4 bytes earlier.
static constexpr int32_t kPcDisplacement = 4;
private:
DISALLOW_COPY_AND_ASSIGN(X86BaseRelativePatcher);
};
} // namespace linker
} // namespace art
#endif // ART_DEX2OAT_LINKER_X86_RELATIVE_PATCHER_X86_BASE_H_