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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COURGETTE_DISASSEMBLER_ELF_32_X86_H_ | 5 #ifndef COURGETTE_DISASSEMBLER_ELF_32_X86_H_ |
6 #define COURGETTE_DISASSEMBLER_ELF_32_X86_H_ | 6 #define COURGETTE_DISASSEMBLER_ELF_32_X86_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include <map> | 11 #include <map> |
12 | 12 |
13 #include "base/macros.h" | 13 #include "base/macros.h" |
14 #include "courgette/disassembler_elf_32.h" | 14 #include "courgette/disassembler_elf_32.h" |
15 #include "courgette/types_elf.h" | 15 #include "courgette/types_elf.h" |
16 | 16 |
17 namespace courgette { | 17 namespace courgette { |
18 | 18 |
19 class AssemblyProgram; | 19 class AssemblyProgram; |
| 20 class InstructionReceptor; |
20 | 21 |
21 class DisassemblerElf32X86 : public DisassemblerElf32 { | 22 class DisassemblerElf32X86 : public DisassemblerElf32 { |
22 public: | 23 public: |
23 // Returns true if a valid executable is detected using only quick checks. | 24 // Returns true if a valid executable is detected using only quick checks. |
24 static bool QuickDetect(const uint8_t* start, size_t length) { | 25 static bool QuickDetect(const uint8_t* start, size_t length) { |
25 return DisassemblerElf32::QuickDetect(start, length, EM_386); | 26 return DisassemblerElf32::QuickDetect(start, length, EM_386); |
26 } | 27 } |
27 | 28 |
28 class TypedRVAX86 : public TypedRVA { | 29 class TypedRVAX86 : public TypedRVA { |
29 public: | 30 public: |
30 explicit TypedRVAX86(RVA rva) : TypedRVA(rva) { } | 31 explicit TypedRVAX86(RVA rva) : TypedRVA(rva) { } |
31 ~TypedRVAX86() override { } | 32 ~TypedRVAX86() override { } |
32 | 33 |
33 // TypedRVA interfaces. | 34 // TypedRVA interfaces. |
34 CheckBool ComputeRelativeTarget(const uint8_t* op_pointer) override; | 35 CheckBool ComputeRelativeTarget(const uint8_t* op_pointer) override; |
35 CheckBool EmitInstruction(AssemblyProgram* program, | 36 CheckBool EmitInstruction(Label* label, |
36 Label* label) override; | 37 InstructionReceptor* receptor) override; |
37 uint16_t op_size() const override; | 38 uint16_t op_size() const override; |
38 }; | 39 }; |
39 | 40 |
40 DisassemblerElf32X86(const uint8_t* start, size_t length); | 41 DisassemblerElf32X86(const uint8_t* start, size_t length); |
41 | 42 |
42 ~DisassemblerElf32X86() override { } | 43 ~DisassemblerElf32X86() override { } |
43 | 44 |
44 // DisassemblerElf32 interfaces. | 45 // DisassemblerElf32 interfaces. |
45 ExecutableType kind() const override { return EXE_ELF_32_X86; } | 46 ExecutableType kind() const override { return EXE_ELF_32_X86; } |
46 e_machine_values ElfEM() const override { return EM_386; } | 47 e_machine_values ElfEM() const override { return EM_386; } |
47 | 48 |
48 protected: | 49 protected: |
49 // DisassemblerElf32 interfaces. | 50 // DisassemblerElf32 interfaces. |
50 CheckBool RelToRVA(Elf32_Rel rel, | 51 CheckBool RelToRVA(Elf32_Rel rel, |
51 RVA* result) const override WARN_UNUSED_RESULT; | 52 RVA* result) const override WARN_UNUSED_RESULT; |
52 CheckBool ParseRelocationSection(const Elf32_Shdr* section_header, | 53 CheckBool ParseRelocationSection(const Elf32_Shdr* section_header, |
53 AssemblyProgram* program) | 54 InstructionReceptor* receptor) const override |
54 override WARN_UNUSED_RESULT; | 55 WARN_UNUSED_RESULT; |
55 CheckBool ParseRel32RelocsFromSection(const Elf32_Shdr* section) | 56 CheckBool ParseRel32RelocsFromSection(const Elf32_Shdr* section) |
56 override WARN_UNUSED_RESULT; | 57 override WARN_UNUSED_RESULT; |
57 | 58 |
58 #if COURGETTE_HISTOGRAM_TARGETS | 59 #if COURGETTE_HISTOGRAM_TARGETS |
59 std::map<RVA, int> rel32_target_rvas_; | 60 std::map<RVA, int> rel32_target_rvas_; |
60 #endif | 61 #endif |
61 | 62 |
| 63 private: |
62 DISALLOW_COPY_AND_ASSIGN(DisassemblerElf32X86); | 64 DISALLOW_COPY_AND_ASSIGN(DisassemblerElf32X86); |
63 }; | 65 }; |
64 | 66 |
65 } // namespace courgette | 67 } // namespace courgette |
66 | 68 |
67 #endif // COURGETTE_DISASSEMBLER_ELF_32_X86_H_ | 69 #endif // COURGETTE_DISASSEMBLER_ELF_32_X86_H_ |
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