1 //===- COFFYAML.h - COFF YAMLIO implementation ------------------*- C++ -*-===//
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 // This file declares classes for handling the YAML representation of COFF.
11 //
12 //===----------------------------------------------------------------------===//
encode_three_bytes()13 
14 #ifndef LLVM_OBJECTYAML_COFFYAML_H
15 #define LLVM_OBJECTYAML_COFFYAML_H
16 
17 #include "llvm/ADT/Optional.h"
18 #include "llvm/ADT/StringRef.h"
19 #include "llvm/BinaryFormat/COFF.h"
20 #include "llvm/ObjectYAML/CodeViewYAMLDebugSections.h"
21 #include "llvm/ObjectYAML/CodeViewYAMLTypeHashing.h"
22 #include "llvm/ObjectYAML/CodeViewYAMLTypes.h"
23 #include "llvm/ObjectYAML/YAML.h"
24 #include <cstdint>
25 #include <vector>
26 
27 namespace llvm {
28 
29 namespace COFF {
30 
31 inline Characteristics operator|(Characteristics a, Characteristics b) {
32   uint32_t Ret = static_cast<uint32_t>(a) | static_cast<uint32_t>(b);
33   return static_cast<Characteristics>(Ret);
34 }
35 
36 inline SectionCharacteristics operator|(SectionCharacteristics a,
37                                         SectionCharacteristics b) {
38   uint32_t Ret = static_cast<uint32_t>(a) | static_cast<uint32_t>(b);
39   return static_cast<SectionCharacteristics>(Ret);
40 }
41 
42 inline DLLCharacteristics operator|(DLLCharacteristics a,
43                                     DLLCharacteristics b) {
44   uint16_t Ret = static_cast<uint16_t>(a) | static_cast<uint16_t>(b);
45   return static_cast<DLLCharacteristics>(Ret);
46 }
47 
48 } // end namespace COFF
49 
50 // The structure of the yaml files is not an exact 1:1 match to COFF. In order
51 // to use yaml::IO, we use these structures which are closer to the source.
52 namespace COFFYAML {
53 
54 LLVM_YAML_STRONG_TYPEDEF(uint8_t, COMDATType)
55 LLVM_YAML_STRONG_TYPEDEF(uint32_t, WeakExternalCharacteristics)
56 LLVM_YAML_STRONG_TYPEDEF(uint8_t, AuxSymbolType)
57 
58 struct Relocation {
59   uint32_t VirtualAddress;
60   uint16_t Type;
61   StringRef SymbolName;
62 };
63 
64 struct Section {
65   COFF::section Header;
66   unsigned Alignment = 0;
67   yaml::BinaryRef SectionData;
68   std::vector<CodeViewYAML::YAMLDebugSubsection> DebugS;
69   std::vector<CodeViewYAML::LeafRecord> DebugT;
70   std::vector<CodeViewYAML::LeafRecord> DebugP;
71   Optional<CodeViewYAML::DebugHSection> DebugH;
72   std::vector<Relocation> Relocations;
73   StringRef Name;
74 
75   Section();
76 };
77 
78 struct Symbol {
79   COFF::symbol Header;
80   COFF::SymbolBaseType SimpleType = COFF::IMAGE_SYM_TYPE_NULL;
81   COFF::SymbolComplexType ComplexType = COFF::IMAGE_SYM_DTYPE_NULL;
82   Optional<COFF::AuxiliaryFunctionDefinition> FunctionDefinition;
83   Optional<COFF::AuxiliarybfAndefSymbol> bfAndefSymbol;
84   Optional<COFF::AuxiliaryWeakExternal> WeakExternal;
85   StringRef File;
86   Optional<COFF::AuxiliarySectionDefinition> SectionDefinition;
87   Optional<COFF::AuxiliaryCLRToken> CLRToken;
88   StringRef Name;
89 
90   Symbol();
91 };
92 
93 struct PEHeader {
94   COFF::PE32Header Header;
95   Optional<COFF::DataDirectory> DataDirectories[COFF::NUM_DATA_DIRECTORIES];
96 };
97 
98 struct Object {
99   Optional<PEHeader> OptionalHeader;
100   COFF::header Header;
101   std::vector<Section> Sections;
102   std::vector<Symbol> Symbols;
103 
104   Object();
105 };
106 
107 } // end namespace COFFYAML
108 
109 } // end namespace llvm
110 
111 LLVM_YAML_IS_SEQUENCE_VECTOR(COFFYAML::Section)
112 LLVM_YAML_IS_SEQUENCE_VECTOR(COFFYAML::Symbol)
113 LLVM_YAML_IS_SEQUENCE_VECTOR(COFFYAML::Relocation)
114 
115 namespace llvm {
116 namespace yaml {
117 
118 template <>
119 struct ScalarEnumerationTraits<COFFYAML::WeakExternalCharacteristics> {
120   static void enumeration(IO &IO, COFFYAML::WeakExternalCharacteristics &Value);
121 };
122 
123 template <>
finish_writes_extra_byte()124 struct ScalarEnumerationTraits<COFFYAML::AuxSymbolType> {
125   static void enumeration(IO &IO, COFFYAML::AuxSymbolType &Value);
126 };
127 
128 template <>
129 struct ScalarEnumerationTraits<COFFYAML::COMDATType> {
130   static void enumeration(IO &IO, COFFYAML::COMDATType &Value);
131 };
132 
133 template <>
134 struct ScalarEnumerationTraits<COFF::MachineTypes> {
135   static void enumeration(IO &IO, COFF::MachineTypes &Value);
136 };
137 
138 template <>
139 struct ScalarEnumerationTraits<COFF::SymbolBaseType> {
140   static void enumeration(IO &IO, COFF::SymbolBaseType &Value);
141 };
142 
143 template <>
write_partial_chunk_encodes_partial_chunk()144 struct ScalarEnumerationTraits<COFF::SymbolStorageClass> {
145   static void enumeration(IO &IO, COFF::SymbolStorageClass &Value);
146 };
147 
148 template <>
149 struct ScalarEnumerationTraits<COFF::SymbolComplexType> {
150   static void enumeration(IO &IO, COFF::SymbolComplexType &Value);
151 };
152 
153 template <>
154 struct ScalarEnumerationTraits<COFF::RelocationTypeI386> {
155   static void enumeration(IO &IO, COFF::RelocationTypeI386 &Value);
156 };
157 
158 template <>
159 struct ScalarEnumerationTraits<COFF::RelocationTypeAMD64> {
160   static void enumeration(IO &IO, COFF::RelocationTypeAMD64 &Value);
161 };
write_1_chunk_encodes_complete_chunk()162 
163 template <>
164 struct ScalarEnumerationTraits<COFF::RelocationTypesARM> {
165   static void enumeration(IO &IO, COFF::RelocationTypesARM &Value);
166 };
167 
168 template <>
169 struct ScalarEnumerationTraits<COFF::RelocationTypesARM64> {
170   static void enumeration(IO &IO, COFF::RelocationTypesARM64 &Value);
171 };
172 
173 template <>
174 struct ScalarEnumerationTraits<COFF::WindowsSubsystem> {
175   static void enumeration(IO &IO, COFF::WindowsSubsystem &Value);
176 };
177 
write_1_chunk_and_partial_encodes_only_complete_chunk()178 template <>
179 struct ScalarBitSetTraits<COFF::Characteristics> {
180   static void bitset(IO &IO, COFF::Characteristics &Value);
181 };
182 
183 template <>
184 struct ScalarBitSetTraits<COFF::SectionCharacteristics> {
185   static void bitset(IO &IO, COFF::SectionCharacteristics &Value);
186 };
187 
188 template <>
189 struct ScalarBitSetTraits<COFF::DLLCharacteristics> {
190   static void bitset(IO &IO, COFF::DLLCharacteristics &Value);
191 };
192 
193 template <>
194 struct MappingTraits<COFFYAML::Relocation> {
write_2_partials_to_exactly_complete_chunk_encodes_complete_chunk()195   static void mapping(IO &IO, COFFYAML::Relocation &Rel);
196 };
197 
198 template <>
199 struct MappingTraits<COFFYAML::PEHeader> {
200   static void mapping(IO &IO, COFFYAML::PEHeader &PH);
201 };
202 
203 template <>
204 struct MappingTraits<COFF::DataDirectory> {
205   static void mapping(IO &IO, COFF::DataDirectory &DD);
206 };
207 
208 template <>
209 struct MappingTraits<COFF::header> {
210   static void mapping(IO &IO, COFF::header &H);
211 };
write_partial_then_enough_to_complete_chunk_but_not_complete_another_chunk_encodes_complete_chunk_without_consuming_remaining()212 
213 template <> struct MappingTraits<COFF::AuxiliaryFunctionDefinition> {
214   static void mapping(IO &IO, COFF::AuxiliaryFunctionDefinition &AFD);
215 };
216 
217 template <> struct MappingTraits<COFF::AuxiliarybfAndefSymbol> {
218   static void mapping(IO &IO, COFF::AuxiliarybfAndefSymbol &AAS);
219 };
220 
221 template <> struct MappingTraits<COFF::AuxiliaryWeakExternal> {
222   static void mapping(IO &IO, COFF::AuxiliaryWeakExternal &AWE);
223 };
224 
225 template <> struct MappingTraits<COFF::AuxiliarySectionDefinition> {
226   static void mapping(IO &IO, COFF::AuxiliarySectionDefinition &ASD);
227 };
228 
229 template <> struct MappingTraits<COFF::AuxiliaryCLRToken> {
write_partial_then_enough_to_complete_chunk_and_another_chunk_encodes_complete_chunks()230   static void mapping(IO &IO, COFF::AuxiliaryCLRToken &ACT);
231 };
232 
233 template <>
234 struct MappingTraits<COFFYAML::Symbol> {
235   static void mapping(IO &IO, COFFYAML::Symbol &S);
236 };
237 
238 template <>
239 struct MappingTraits<COFFYAML::Section> {
240   static void mapping(IO &IO, COFFYAML::Section &Sec);
241 };
242 
243 template <>
244 struct MappingTraits<COFFYAML::Object> {
245   static void mapping(IO &IO, COFFYAML::Object &Obj);
246 };
247 
write_partial_then_enough_to_complete_chunk_and_another_chunk_and_another_partial_chunk_encodes_only_complete_chunks()248 } // end namespace yaml
249 } // end namespace llvm
250 
251 #endif // LLVM_OBJECTYAML_COFFYAML_H
252