1//===--- ARMWinEHPrinter.h - Windows on ARM Unwind Information Printer ----===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License.  See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_TOOLS_LLVM_READOBJ_ARMWINEHPRINTER_H
11#define LLVM_TOOLS_LLVM_READOBJ_ARMWINEHPRINTER_H
12
13#include "llvm/Object/COFF.h"
14#include "llvm/Support/ErrorOr.h"
15#include "llvm/Support/ScopedPrinter.h"
16
17namespace llvm {
18namespace ARM {
19namespace WinEH {
20class RuntimeFunction;
21
22class Decoder {
23  static const size_t PDataEntrySize;
24
25  ScopedPrinter &SW;
26  raw_ostream &OS;
27
28  struct RingEntry {
29    uint8_t Mask;
30    uint8_t Value;
31    bool (Decoder::*Routine)(const uint8_t *, unsigned &, unsigned, bool);
32  };
33  static const RingEntry Ring[];
34
35  bool opcode_0xxxxxxx(const uint8_t *Opcodes, unsigned &Offset,
36                       unsigned Length, bool Prologue);
37  bool opcode_10Lxxxxx(const uint8_t *Opcodes, unsigned &Offset,
38                       unsigned Length, bool Prologue);
39  bool opcode_1100xxxx(const uint8_t *Opcodes, unsigned &Offset,
40                       unsigned Length, bool Prologue);
41  bool opcode_11010Lxx(const uint8_t *Opcodes, unsigned &Offset,
42                       unsigned Length, bool Prologue);
43  bool opcode_11011Lxx(const uint8_t *Opcodes, unsigned &Offset,
44                       unsigned Length, bool Prologue);
45  bool opcode_11100xxx(const uint8_t *Opcodes, unsigned &Offset,
46                       unsigned Length, bool Prologue);
47  bool opcode_111010xx(const uint8_t *Opcodes, unsigned &Offset,
48                       unsigned Length, bool Prologue);
49  bool opcode_1110110L(const uint8_t *Opcodes, unsigned &Offset,
50                       unsigned Length, bool Prologue);
51  bool opcode_11101110(const uint8_t *Opcodes, unsigned &Offset,
52                       unsigned Length, bool Prologue);
53  bool opcode_11101111(const uint8_t *Opcodes, unsigned &Offset,
54                       unsigned Length, bool Prologue);
55  bool opcode_11110101(const uint8_t *Opcodes, unsigned &Offset,
56                       unsigned Length, bool Prologue);
57  bool opcode_11110110(const uint8_t *Opcodes, unsigned &Offset,
58                       unsigned Length, bool Prologue);
59  bool opcode_11110111(const uint8_t *Opcodes, unsigned &Offset,
60                       unsigned Length, bool Prologue);
61  bool opcode_11111000(const uint8_t *Opcodes, unsigned &Offset,
62                       unsigned Length, bool Prologue);
63  bool opcode_11111001(const uint8_t *Opcodes, unsigned &Offset,
64                       unsigned Length, bool Prologue);
65  bool opcode_11111010(const uint8_t *Opcodes, unsigned &Offset,
66                       unsigned Length, bool Prologue);
67  bool opcode_11111011(const uint8_t *Opcodes, unsigned &Offset,
68                       unsigned Length, bool Prologue);
69  bool opcode_11111100(const uint8_t *Opcodes, unsigned &Offset,
70                       unsigned Length, bool Prologue);
71  bool opcode_11111101(const uint8_t *Opcodes, unsigned &Offset,
72                       unsigned Length, bool Prologue);
73  bool opcode_11111110(const uint8_t *Opcodes, unsigned &Offset,
74                       unsigned Length, bool Prologue);
75  bool opcode_11111111(const uint8_t *Opcodes, unsigned &Offset,
76                       unsigned Length, bool Prologue);
77
78  void decodeOpcodes(ArrayRef<uint8_t> Opcodes, unsigned Offset,
79                     bool Prologue);
80
81  void printRegisters(const std::pair<uint16_t, uint32_t> &RegisterMask);
82
83  ErrorOr<object::SectionRef>
84  getSectionContaining(const object::COFFObjectFile &COFF, uint64_t Address);
85
86  ErrorOr<object::SymbolRef>
87  getSymbol(const object::COFFObjectFile &COFF, uint64_t Address,
88            bool FunctionOnly = false);
89
90  ErrorOr<object::SymbolRef>
91  getRelocatedSymbol(const object::COFFObjectFile &COFF,
92                     const object::SectionRef &Section, uint64_t Offset);
93
94  bool dumpXDataRecord(const object::COFFObjectFile &COFF,
95                       const object::SectionRef &Section,
96                       uint64_t FunctionAddress, uint64_t VA);
97  bool dumpUnpackedEntry(const object::COFFObjectFile &COFF,
98                         const object::SectionRef Section, uint64_t Offset,
99                         unsigned Index, const RuntimeFunction &Entry);
100  bool dumpPackedEntry(const object::COFFObjectFile &COFF,
101                       const object::SectionRef Section, uint64_t Offset,
102                       unsigned Index, const RuntimeFunction &Entry);
103  bool dumpProcedureDataEntry(const object::COFFObjectFile &COFF,
104                              const object::SectionRef Section, unsigned Entry,
105                              ArrayRef<uint8_t> Contents);
106  void dumpProcedureData(const object::COFFObjectFile &COFF,
107                         const object::SectionRef Section);
108
109public:
110  Decoder(ScopedPrinter &SW) : SW(SW), OS(SW.getOStream()) {}
111  std::error_code dumpProcedureData(const object::COFFObjectFile &COFF);
112};
113}
114}
115}
116
117#endif
118