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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COURGETTE_DISASSEMBLER_ELF_32_X86_H_
#define COURGETTE_DISASSEMBLER_ELF_32_X86_H_
#include "base/basictypes.h"
#include "courgette/disassembler_elf_32.h"
#include "courgette/memory_allocator.h"
#include "courgette/types_elf.h"
namespace courgette {
class AssemblyProgram;
class DisassemblerElf32X86 : public DisassemblerElf32 {
public:
class TypedRVAX86 : public TypedRVA {
public:
explicit TypedRVAX86(RVA rva) : TypedRVA(rva) {
}
virtual CheckBool ComputeRelativeTarget(const uint8* op_pointer) override {
set_relative_target(Read32LittleEndian(op_pointer) + 4);
return true;
}
virtual CheckBool EmitInstruction(AssemblyProgram* program,
RVA target_rva) override {
return program->EmitRel32(program->FindOrMakeRel32Label(target_rva));
}
virtual uint16 op_size() const override { return 4; }
};
explicit DisassemblerElf32X86(const void* start, size_t length);
virtual ExecutableType kind() { return EXE_ELF_32_X86; }
virtual e_machine_values ElfEM() { return EM_386; }
protected:
virtual CheckBool RelToRVA(Elf32_Rel rel, RVA* result)
const WARN_UNUSED_RESULT;
virtual CheckBool ParseRelocationSection(
const Elf32_Shdr *section_header,
AssemblyProgram* program) WARN_UNUSED_RESULT;
virtual CheckBool ParseRel32RelocsFromSection(
const Elf32_Shdr* section) WARN_UNUSED_RESULT;
#if COURGETTE_HISTOGRAM_TARGETS
std::map<RVA, int> rel32_target_rvas_;
#endif
DISALLOW_COPY_AND_ASSIGN(DisassemblerElf32X86);
};
} // namespace courgette
#endif // COURGETTE_DISASSEMBLER_ELF_32_X86_H_
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