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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 <stddef.h>
- #include <stdint.h>
- #include <map>
- #include "courgette/disassembler_elf_32.h"
- #include "courgette/types_elf.h"
- namespace courgette {
- class InstructionReceptor;
- class DisassemblerElf32X86 : public DisassemblerElf32 {
- public:
- // Returns true if a valid executable is detected using only quick checks.
- static bool QuickDetect(const uint8_t* start, size_t length) {
- return DisassemblerElf32::QuickDetect(start, length, EM_386);
- }
- class TypedRVAX86 : public TypedRVA {
- public:
- explicit TypedRVAX86(RVA rva) : TypedRVA(rva) { }
- ~TypedRVAX86() override { }
- // TypedRVA interfaces.
- CheckBool ComputeRelativeTarget(const uint8_t* op_pointer) override;
- CheckBool EmitInstruction(Label* label,
- InstructionReceptor* receptor) override;
- uint16_t op_size() const override;
- };
- DisassemblerElf32X86(const uint8_t* start, size_t length);
- DisassemblerElf32X86(const DisassemblerElf32X86&) = delete;
- DisassemblerElf32X86& operator=(const DisassemblerElf32X86&) = delete;
- ~DisassemblerElf32X86() override { }
- // DisassemblerElf32 interfaces.
- ExecutableType kind() const override { return EXE_ELF_32_X86; }
- e_machine_values ElfEM() const override { return EM_386; }
- protected:
- // DisassemblerElf32 interfaces.
- [[nodiscard]] CheckBool RelToRVA(Elf32_Rel rel, RVA* result) const override;
- [[nodiscard]] CheckBool ParseRelocationSection(
- const Elf32_Shdr* section_header,
- InstructionReceptor* receptor) const override;
- [[nodiscard]] CheckBool ParseRel32RelocsFromSection(
- const Elf32_Shdr* section) override;
- #if COURGETTE_HISTOGRAM_TARGETS
- std::map<RVA, int> rel32_target_rvas_;
- #endif
- };
- } // namespace courgette
- #endif // COURGETTE_DISASSEMBLER_ELF_32_X86_H_
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