1 //===- ELFYAML.h - ELF YAMLIO implementation --------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// This file declares classes for handling the YAML representation
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_OBJECTYAML_ELFYAML_H
17 #define LLVM_OBJECTYAML_ELFYAML_H
19 #include "llvm/ADT/StringRef.h"
20 #include "llvm/ObjectYAML/YAML.h"
21 #include "llvm/Support/YAMLTraits.h"
29 // These types are invariant across 32/64-bit ELF, so for simplicity just
30 // directly give them their exact sizes. We don't need to worry about
31 // endianness because these are just the types in the YAMLIO structures,
32 // and are appropriately converted to the necessary endianness when
33 // reading/generating binary object files.
34 // The naming of these types is intended to be ELF_PREFIX, where PREFIX is
35 // the common prefix of the respective constants. E.g. ELF_EM corresponds
36 // to the `e_machine` constants, like `EM_X86_64`.
37 // In the future, these would probably be better suited by C++11 enum
38 // class's with appropriate fixed underlying type.
39 LLVM_YAML_STRONG_TYPEDEF(uint16_t, ELF_ET)
40 LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_PT)
41 LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_EM)
42 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_ELFCLASS)
43 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_ELFDATA)
44 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_ELFOSABI)
45 // Just use 64, since it can hold 32-bit values too.
46 LLVM_YAML_STRONG_TYPEDEF(uint64_t, ELF_EF)
47 LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_PF)
48 LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_SHT)
49 LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_REL)
50 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_RSS)
51 // Just use 64, since it can hold 32-bit values too.
52 LLVM_YAML_STRONG_TYPEDEF(uint64_t, ELF_SHF)
53 LLVM_YAML_STRONG_TYPEDEF(uint16_t, ELF_SHN)
54 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STT)
55 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STV)
56 LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STO)
58 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
59 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
60 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
61 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
62 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
63 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_ISA)
65 // For now, hardcode 64 bits everywhere that 32 or 64 would be needed
66 // since 64-bit can hold 32-bit values too.
71 llvm::yaml::Hex8 ABIVersion;
75 llvm::yaml::Hex64 Entry;
82 struct ProgramHeader {
85 llvm::yaml::Hex64 VAddr;
86 llvm::yaml::Hex64 PAddr;
87 Optional<llvm::yaml::Hex64> Align;
88 std::vector<SectionName> Sections;
95 Optional<ELF_SHN> Index;
96 llvm::yaml::Hex64 Value;
97 llvm::yaml::Hex64 Size;
101 struct LocalGlobalWeakSymbols {
102 std::vector<Symbol> Local;
103 std::vector<Symbol> Global;
104 std::vector<Symbol> Weak;
107 struct SectionOrType {
108 StringRef sectionNameOrType;
112 enum class SectionKind {
123 llvm::yaml::Hex64 Address;
126 llvm::yaml::Hex64 AddressAlign;
127 Optional<llvm::yaml::Hex64> EntSize;
129 Section(SectionKind Kind) : Kind(Kind) {}
132 struct RawContentSection : Section {
133 yaml::BinaryRef Content;
134 llvm::yaml::Hex64 Size;
136 RawContentSection() : Section(SectionKind::RawContent) {}
138 static bool classof(const Section *S) {
139 return S->Kind == SectionKind::RawContent;
143 struct NoBitsSection : Section {
144 llvm::yaml::Hex64 Size;
146 NoBitsSection() : Section(SectionKind::NoBits) {}
148 static bool classof(const Section *S) {
149 return S->Kind == SectionKind::NoBits;
153 struct Group : Section {
154 // Members of a group contain a flag and a list of section indices
155 // that are part of the group.
156 std::vector<SectionOrType> Members;
158 Group() : Section(SectionKind::Group) {}
160 static bool classof(const Section *S) {
161 return S->Kind == SectionKind::Group;
166 llvm::yaml::Hex64 Offset;
169 Optional<StringRef> Symbol;
172 struct RelocationSection : Section {
173 std::vector<Relocation> Relocations;
175 RelocationSection() : Section(SectionKind::Relocation) {}
177 static bool classof(const Section *S) {
178 return S->Kind == SectionKind::Relocation;
182 // Represents .MIPS.abiflags section
183 struct MipsABIFlags : Section {
184 llvm::yaml::Hex16 Version;
186 llvm::yaml::Hex8 ISARevision;
187 MIPS_AFL_REG GPRSize;
188 MIPS_AFL_REG CPR1Size;
189 MIPS_AFL_REG CPR2Size;
191 MIPS_AFL_EXT ISAExtension;
193 MIPS_AFL_FLAGS1 Flags1;
194 llvm::yaml::Hex32 Flags2;
196 MipsABIFlags() : Section(SectionKind::MipsABIFlags) {}
198 static bool classof(const Section *S) {
199 return S->Kind == SectionKind::MipsABIFlags;
205 std::vector<ProgramHeader> ProgramHeaders;
206 std::vector<std::unique_ptr<Section>> Sections;
207 // Although in reality the symbols reside in a section, it is a lot
208 // cleaner and nicer if we read them from the YAML as a separate
209 // top-level key, which automatically ensures that invariants like there
210 // being a single SHT_SYMTAB section are upheld.
211 LocalGlobalWeakSymbols Symbols;
212 LocalGlobalWeakSymbols DynamicSymbols;
215 } // end namespace ELFYAML
216 } // end namespace llvm
218 LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::ProgramHeader)
219 LLVM_YAML_IS_SEQUENCE_VECTOR(std::unique_ptr<llvm::ELFYAML::Section>)
220 LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::Symbol)
221 LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::Relocation)
222 LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::SectionOrType)
223 LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::SectionName)
229 struct ScalarEnumerationTraits<ELFYAML::ELF_ET> {
230 static void enumeration(IO &IO, ELFYAML::ELF_ET &Value);
233 template <> struct ScalarEnumerationTraits<ELFYAML::ELF_PT> {
234 static void enumeration(IO &IO, ELFYAML::ELF_PT &Value);
238 struct ScalarEnumerationTraits<ELFYAML::ELF_EM> {
239 static void enumeration(IO &IO, ELFYAML::ELF_EM &Value);
243 struct ScalarEnumerationTraits<ELFYAML::ELF_ELFCLASS> {
244 static void enumeration(IO &IO, ELFYAML::ELF_ELFCLASS &Value);
248 struct ScalarEnumerationTraits<ELFYAML::ELF_ELFDATA> {
249 static void enumeration(IO &IO, ELFYAML::ELF_ELFDATA &Value);
253 struct ScalarEnumerationTraits<ELFYAML::ELF_ELFOSABI> {
254 static void enumeration(IO &IO, ELFYAML::ELF_ELFOSABI &Value);
258 struct ScalarBitSetTraits<ELFYAML::ELF_EF> {
259 static void bitset(IO &IO, ELFYAML::ELF_EF &Value);
262 template <> struct ScalarBitSetTraits<ELFYAML::ELF_PF> {
263 static void bitset(IO &IO, ELFYAML::ELF_PF &Value);
267 struct ScalarEnumerationTraits<ELFYAML::ELF_SHT> {
268 static void enumeration(IO &IO, ELFYAML::ELF_SHT &Value);
272 struct ScalarBitSetTraits<ELFYAML::ELF_SHF> {
273 static void bitset(IO &IO, ELFYAML::ELF_SHF &Value);
276 template <> struct ScalarEnumerationTraits<ELFYAML::ELF_SHN> {
277 static void enumeration(IO &IO, ELFYAML::ELF_SHN &Value);
281 struct ScalarEnumerationTraits<ELFYAML::ELF_STT> {
282 static void enumeration(IO &IO, ELFYAML::ELF_STT &Value);
286 struct ScalarEnumerationTraits<ELFYAML::ELF_STV> {
287 static void enumeration(IO &IO, ELFYAML::ELF_STV &Value);
291 struct ScalarBitSetTraits<ELFYAML::ELF_STO> {
292 static void bitset(IO &IO, ELFYAML::ELF_STO &Value);
296 struct ScalarEnumerationTraits<ELFYAML::ELF_REL> {
297 static void enumeration(IO &IO, ELFYAML::ELF_REL &Value);
301 struct ScalarEnumerationTraits<ELFYAML::ELF_RSS> {
302 static void enumeration(IO &IO, ELFYAML::ELF_RSS &Value);
306 struct ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG> {
307 static void enumeration(IO &IO, ELFYAML::MIPS_AFL_REG &Value);
311 struct ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP> {
312 static void enumeration(IO &IO, ELFYAML::MIPS_ABI_FP &Value);
316 struct ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT> {
317 static void enumeration(IO &IO, ELFYAML::MIPS_AFL_EXT &Value);
321 struct ScalarEnumerationTraits<ELFYAML::MIPS_ISA> {
322 static void enumeration(IO &IO, ELFYAML::MIPS_ISA &Value);
326 struct ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE> {
327 static void bitset(IO &IO, ELFYAML::MIPS_AFL_ASE &Value);
331 struct ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1> {
332 static void bitset(IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value);
336 struct MappingTraits<ELFYAML::FileHeader> {
337 static void mapping(IO &IO, ELFYAML::FileHeader &FileHdr);
340 template <> struct MappingTraits<ELFYAML::ProgramHeader> {
341 static void mapping(IO &IO, ELFYAML::ProgramHeader &FileHdr);
345 struct MappingTraits<ELFYAML::Symbol> {
346 static void mapping(IO &IO, ELFYAML::Symbol &Symbol);
347 static StringRef validate(IO &IO, ELFYAML::Symbol &Symbol);
351 struct MappingTraits<ELFYAML::LocalGlobalWeakSymbols> {
352 static void mapping(IO &IO, ELFYAML::LocalGlobalWeakSymbols &Symbols);
355 template <> struct MappingTraits<ELFYAML::Relocation> {
356 static void mapping(IO &IO, ELFYAML::Relocation &Rel);
360 struct MappingTraits<std::unique_ptr<ELFYAML::Section>> {
361 static void mapping(IO &IO, std::unique_ptr<ELFYAML::Section> &Section);
362 static StringRef validate(IO &io, std::unique_ptr<ELFYAML::Section> &Section);
366 struct MappingTraits<ELFYAML::Object> {
367 static void mapping(IO &IO, ELFYAML::Object &Object);
370 template <> struct MappingTraits<ELFYAML::SectionOrType> {
371 static void mapping(IO &IO, ELFYAML::SectionOrType §ionOrType);
374 template <> struct MappingTraits<ELFYAML::SectionName> {
375 static void mapping(IO &IO, ELFYAML::SectionName §ionName);
378 } // end namespace yaml
379 } // end namespace llvm
381 #endif // LLVM_OBJECTYAML_ELFYAML_H