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/*
* Copyright (C) 2012 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_COMPILER_LLVM_PROCEDURE_LINKAGE_TABLE_H_
#define ART_SRC_COMPILER_LLVM_PROCEDURE_LINKAGE_TABLE_H_
#include "globals.h"
#include "instruction_set.h"
#include "mem_map.h"
#include <UniquePtr.h>
#include <stddef.h>
#include <stdint.h>
namespace art {
namespace compiler_llvm {
class ProcedureLinkageTable {
public:
ProcedureLinkageTable(InstructionSet insn_set);
~ProcedureLinkageTable();
bool AllocateTable();
uintptr_t GetEntryAddress(const char* func_name) const;
private:
static size_t GetStubCount(InstructionSet insn_set);
static size_t GetStubSizeInBytes(InstructionSet insn_set);
static void CreateStub(InstructionSet insn_set,
byte* stub, void* branch_dest);
int IndexOfRuntimeFunc(const char* name) const;
static int IndexOfArtRuntimeFunc(const char* name);
static int IndexOfCompilerRuntimeFunc(InstructionSet insn_set,
const char* name);
size_t GetStubCount() const {
return GetStubCount(insn_set_);
}
size_t GetStubSizeInBytes() const {
return GetStubSizeInBytes(insn_set_);
}
size_t GetTableSizeInBytes() const {
return GetStubSizeInBytes() * GetStubCount();
}
void CreateStub(byte* stub, void* branch_dest) {
return CreateStub(insn_set_, stub, branch_dest);
}
int IndexOfCompilerRuntimeFunc(const char* name) const {
return IndexOfCompilerRuntimeFunc(insn_set_, name);
}
InstructionSet insn_set_;
UniquePtr<MemMap> table_mmap_;
static const size_t kTableSizeInBytes = 1024u;
static const uintptr_t kTableAddress = 0x5fffc000u;
};
} // namespace compiler_llvm
} // namespace art
#endif // ART_SRC_COMPILER_LLVM_PROCEDURE_LINKAGE_TABLE_H_
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