1//===--- ARMAttributeParser.h - ARM Attribute 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_SUPPORT_ARMATTRIBUTEPARSER_H
11#define LLVM_SUPPORT_ARMATTRIBUTEPARSER_H
12
13#include "ARMBuildAttributes.h"
14#include "ScopedPrinter.h"
15
16#include <map>
17
18namespace llvm {
19class StringRef;
20
21class ARMAttributeParser {
22  ScopedPrinter *SW;
23
24  std::map<unsigned, unsigned> Attributes;
25
26  struct DisplayHandler {
27    ARMBuildAttrs::AttrType Attribute;
28    void (ARMAttributeParser::*Routine)(ARMBuildAttrs::AttrType,
29                                        const uint8_t *, uint32_t &);
30  };
31  static const DisplayHandler DisplayRoutines[];
32
33  uint64_t ParseInteger(const uint8_t *Data, uint32_t &Offset);
34  StringRef ParseString(const uint8_t *Data, uint32_t &Offset);
35
36  void IntegerAttribute(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
37                        uint32_t &Offset);
38  void StringAttribute(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
39                       uint32_t &Offset);
40
41  void PrintAttribute(unsigned Tag, unsigned Value, StringRef ValueDesc);
42
43  void CPU_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
44                uint32_t &Offset);
45  void CPU_arch_profile(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
46                        uint32_t &Offset);
47  void ARM_ISA_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
48                   uint32_t &Offset);
49  void THUMB_ISA_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
50                     uint32_t &Offset);
51  void FP_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
52               uint32_t &Offset);
53  void WMMX_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
54                 uint32_t &Offset);
55  void Advanced_SIMD_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
56                          uint32_t &Offset);
57  void PCS_config(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
58                  uint32_t &Offset);
59  void ABI_PCS_R9_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
60                      uint32_t &Offset);
61  void ABI_PCS_RW_data(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
62                       uint32_t &Offset);
63  void ABI_PCS_RO_data(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
64                       uint32_t &Offset);
65  void ABI_PCS_GOT_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
66                       uint32_t &Offset);
67  void ABI_PCS_wchar_t(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
68                       uint32_t &Offset);
69  void ABI_FP_rounding(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
70                       uint32_t &Offset);
71  void ABI_FP_denormal(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
72                       uint32_t &Offset);
73  void ABI_FP_exceptions(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
74                         uint32_t &Offset);
75  void ABI_FP_user_exceptions(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
76                              uint32_t &Offset);
77  void ABI_FP_number_model(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
78                           uint32_t &Offset);
79  void ABI_align_needed(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
80                        uint32_t &Offset);
81  void ABI_align_preserved(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
82                           uint32_t &Offset);
83  void ABI_enum_size(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
84                     uint32_t &Offset);
85  void ABI_HardFP_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
86                      uint32_t &Offset);
87  void ABI_VFP_args(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
88                    uint32_t &Offset);
89  void ABI_WMMX_args(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
90                     uint32_t &Offset);
91  void ABI_optimization_goals(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
92                              uint32_t &Offset);
93  void ABI_FP_optimization_goals(ARMBuildAttrs::AttrType Tag,
94                                 const uint8_t *Data, uint32_t &Offset);
95  void compatibility(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
96                     uint32_t &Offset);
97  void CPU_unaligned_access(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
98                            uint32_t &Offset);
99  void FP_HP_extension(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
100                       uint32_t &Offset);
101  void ABI_FP_16bit_format(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
102                           uint32_t &Offset);
103  void MPextension_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
104                       uint32_t &Offset);
105  void DIV_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
106               uint32_t &Offset);
107  void DSP_extension(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
108                     uint32_t &Offset);
109  void T2EE_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
110                uint32_t &Offset);
111  void Virtualization_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
112                          uint32_t &Offset);
113  void nodefaults(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
114                  uint32_t &Offset);
115
116  void ParseAttributeList(const uint8_t *Data, uint32_t &Offset,
117                          uint32_t Length);
118  void ParseIndexList(const uint8_t *Data, uint32_t &Offset,
119                      SmallVectorImpl<uint8_t> &IndexList);
120  void ParseSubsection(const uint8_t *Data, uint32_t Length);
121public:
122  ARMAttributeParser(ScopedPrinter *SW) : SW(SW) {}
123
124  ARMAttributeParser() : SW(nullptr) { }
125
126  void Parse(ArrayRef<uint8_t> Section, bool isLittle);
127
128  bool hasAttribute(unsigned Tag) const {
129    return Attributes.count(Tag);
130  }
131
132  unsigned getAttributeValue(unsigned Tag) const {
133    return Attributes.find(Tag)->second;
134  }
135};
136
137}
138
139#endif
140
141