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/*
* Copyright (C) 2011 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_SRC_COMPILED_METHOD_H_
#define ART_SRC_COMPILED_METHOD_H_
#include <vector>
#include "instruction_set.h"
#include "utils.h"
#include "UniquePtr.h"
namespace llvm {
class Function;
}
namespace art {
class CompiledMethod {
public:
// Constructs a CompiledMethod for the non-LLVM compilers.
CompiledMethod(InstructionSet instruction_set,
const std::vector<uint8_t>& code,
const size_t frame_size_in_bytes,
const uint32_t core_spill_mask,
const uint32_t fp_spill_mask,
const std::vector<uint32_t>& mapping_table,
const std::vector<uint16_t>& vmap_table);
// Sets the GC map for a CompiledMethod.
void SetGcMap(const std::vector<uint8_t>& gc_map);
// Constructs a CompiledMethod for the JniCompiler.
CompiledMethod(InstructionSet instruction_set,
const std::vector<uint8_t>& code,
const size_t frame_size_in_bytes,
const uint32_t core_spill_mask,
const uint32_t fp_spill_mask);
// Constructs a CompiledMethod for the LLVM compiler.
CompiledMethod(InstructionSet instruction_set,
const uint16_t elf_idx,
const uint16_t elf_func_idx);
~CompiledMethod();
InstructionSet GetInstructionSet() const;
const std::vector<uint8_t>& GetCode() const;
size_t GetFrameSizeInBytes() const;
uint32_t GetCoreSpillMask() const;
uint32_t GetFpSpillMask() const;
const std::vector<uint32_t>& GetMappingTable() const;
const std::vector<uint16_t>& GetVmapTable() const;
const std::vector<uint8_t>& GetGcMap() const;
#if defined(ART_USE_LLVM_COMPILER)
void SetFrameSizeInBytes(size_t new_frame_size_in_bytes) {
frame_size_in_bytes_ = new_frame_size_in_bytes;
}
#endif
// Aligns an offset from a page aligned value to make it suitable
// for code storage. important to ensure that PC relative value
// computations work out as expected on ARM.
uint32_t AlignCode(uint32_t offset) const;
static uint32_t AlignCode(uint32_t offset, InstructionSet instruction_set);
// returns the difference between the code address and a usable PC.
// mainly to cope with kThumb2 where the lower bit must be set.
size_t CodeDelta() const;
// Returns a pointer suitable for invoking the code at the argument
// code_pointer address. Mainly to cope with kThumb2 where the
// lower bit must be set to indicate Thumb mode.
static const void* CodePointer(const void* code_pointer,
InstructionSet instruction_set);
uint16_t GetElfIndex() const {
DCHECK(IsExecutableInElf());
return elf_idx_;
}
uint16_t GetElfFuncIndex() const {
DCHECK(IsExecutableInElf());
return elf_func_idx_;
}
bool IsExecutableInElf() const {
return (elf_idx_ != static_cast<uint16_t>(-1u));
}
private:
// For non-LLVM
const InstructionSet instruction_set_;
std::vector<uint8_t> code_;
size_t frame_size_in_bytes_;
const uint32_t core_spill_mask_;
const uint32_t fp_spill_mask_;
std::vector<uint32_t> mapping_table_;
std::vector<uint16_t> vmap_table_;
std::vector<uint8_t> gc_map_;
// For LLVM
uint16_t elf_idx_;
uint16_t elf_func_idx_;
};
class CompiledInvokeStub {
public:
explicit CompiledInvokeStub(std::vector<uint8_t>& code);
#if defined(ART_USE_LLVM_COMPILER)
explicit CompiledInvokeStub(uint16_t elf_idx);
#endif
~CompiledInvokeStub();
const std::vector<uint8_t>& GetCode() const;
uint16_t GetStubElfIndex() const {
DCHECK(IsExecutableInElf());
return elf_idx_;
}
uint16_t GetInvokeStubElfFuncIndex() const {
DCHECK(IsExecutableInElf());
return invoke_stub_elf_func_idx_;
}
uint16_t GetProxyStubElfFuncIndex() const {
DCHECK(IsExecutableInElf());
return proxy_stub_elf_func_idx_;
}
void SetInvokeStub(uint16_t invoke_stub_elf_func_idx) {
invoke_stub_elf_func_idx_ = invoke_stub_elf_func_idx;
}
void SetProxyStub(uint16_t proxy_stub_elf_func_idx) {
proxy_stub_elf_func_idx_ = proxy_stub_elf_func_idx;
}
bool IsExecutableInElf() const {
return (elf_idx_ != static_cast<uint16_t>(-1u));
}
private:
std::vector<uint8_t> code_;
uint16_t elf_idx_;
uint16_t invoke_stub_elf_func_idx_;
uint16_t proxy_stub_elf_func_idx_;
};
} // namespace art
#endif // ART_SRC_COMPILED_METHOD_H_
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