contrib/llvm/lib/ObjectYAML/WasmYAML.cpp

   1 //===- WasmYAML.cpp - Wasm YAMLIO implementation --------------------------===//
   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 defines classes for handling the YAML representation of wasm.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/ObjectYAML/WasmYAML.h"
  15 #include "llvm/ADT/StringRef.h"
  16 #include "llvm/Support/Casting.h"
  17 #include "llvm/Support/ErrorHandling.h"
  18 #include "llvm/Support/YAMLTraits.h"
  19
  20 namespace llvm {
  21
  22 namespace WasmYAML {
  23
  24 // Declared here rather than in the header to comply with:
  25 // http://llvm.org/docs/CodingStandards.html#provide-a-virtual-method-anchor-for-classes-in-headers
  26 Section::~Section() = default;
  27
  28 } // end namespace WasmYAML
  29
  30 namespace yaml {
  31
  32 void MappingTraits<WasmYAML::FileHeader>::mapping(
  33     IO &IO, WasmYAML::FileHeader &FileHdr) {
  34   IO.mapRequired("Version", FileHdr.Version);
  35 }
  36
  37 void MappingTraits<WasmYAML::Object>::mapping(IO &IO,
  38                                               WasmYAML::Object &Object) {
  39   IO.setContext(&Object);
  40   IO.mapTag("!WASM", true);
  41   IO.mapRequired("FileHeader", Object.Header);
  42   IO.mapOptional("Sections", Object.Sections);
  43   IO.setContext(nullptr);
  44 }
  45
  46 static void commonSectionMapping(IO &IO, WasmYAML::Section &Section) {
  47   IO.mapRequired("Type", Section.Type);
  48   IO.mapOptional("Relocations", Section.Relocations);
  49 }
  50
  51 static void sectionMapping(IO &IO, WasmYAML::NameSection &Section) {
  52   commonSectionMapping(IO, Section);
  53   IO.mapRequired("Name", Section.Name);
  54   IO.mapOptional("FunctionNames", Section.FunctionNames);
  55 }
  56
  57 static void sectionMapping(IO &IO, WasmYAML::LinkingSection &Section) {
  58   commonSectionMapping(IO, Section);
  59   IO.mapRequired("Name", Section.Name);
  60   IO.mapRequired("Version", Section.Version);
  61   IO.mapOptional("SymbolTable", Section.SymbolTable);
  62   IO.mapOptional("SegmentInfo", Section.SegmentInfos);
  63   IO.mapOptional("InitFunctions", Section.InitFunctions);
  64   IO.mapOptional("Comdats", Section.Comdats);
  65 }
  66
  67 static void sectionMapping(IO &IO, WasmYAML::CustomSection &Section) {
  68   commonSectionMapping(IO, Section);
  69   IO.mapRequired("Name", Section.Name);
  70   IO.mapRequired("Payload", Section.Payload);
  71 }
  72
  73 static void sectionMapping(IO &IO, WasmYAML::TypeSection &Section) {
  74   commonSectionMapping(IO, Section);
  75   IO.mapOptional("Signatures", Section.Signatures);
  76 }
  77
  78 static void sectionMapping(IO &IO, WasmYAML::ImportSection &Section) {
  79   commonSectionMapping(IO, Section);
  80   IO.mapOptional("Imports", Section.Imports);
  81 }
  82
  83 static void sectionMapping(IO &IO, WasmYAML::FunctionSection &Section) {
  84   commonSectionMapping(IO, Section);
  85   IO.mapOptional("FunctionTypes", Section.FunctionTypes);
  86 }
  87
  88 static void sectionMapping(IO &IO, WasmYAML::TableSection &Section) {
  89   commonSectionMapping(IO, Section);
  90   IO.mapOptional("Tables", Section.Tables);
  91 }
  92
  93 static void sectionMapping(IO &IO, WasmYAML::MemorySection &Section) {
  94   commonSectionMapping(IO, Section);
  95   IO.mapOptional("Memories", Section.Memories);
  96 }
  97
  98 static void sectionMapping(IO &IO, WasmYAML::GlobalSection &Section) {
  99   commonSectionMapping(IO, Section);
 100   IO.mapOptional("Globals", Section.Globals);
 101 }
 102
 103 static void sectionMapping(IO &IO, WasmYAML::ExportSection &Section) {
 104   commonSectionMapping(IO, Section);
 105   IO.mapOptional("Exports", Section.Exports);
 106 }
 107
 108 static void sectionMapping(IO &IO, WasmYAML::StartSection &Section) {
 109   commonSectionMapping(IO, Section);
 110   IO.mapOptional("StartFunction", Section.StartFunction);
 111 }
 112
 113 static void sectionMapping(IO &IO, WasmYAML::ElemSection &Section) {
 114   commonSectionMapping(IO, Section);
 115   IO.mapOptional("Segments", Section.Segments);
 116 }
 117
 118 static void sectionMapping(IO &IO, WasmYAML::CodeSection &Section) {
 119   commonSectionMapping(IO, Section);
 120   IO.mapRequired("Functions", Section.Functions);
 121 }
 122
 123 static void sectionMapping(IO &IO, WasmYAML::DataSection &Section) {
 124   commonSectionMapping(IO, Section);
 125   IO.mapRequired("Segments", Section.Segments);
 126 }
 127
 128 void MappingTraits<std::unique_ptr<WasmYAML::Section>>::mapping(
 129     IO &IO, std::unique_ptr<WasmYAML::Section> &Section) {
 130   WasmYAML::SectionType SectionType;
 131   if (IO.outputting())
 132     SectionType = Section->Type;
 133   else
 134     IO.mapRequired("Type", SectionType);
 135
 136   switch (SectionType) {
 137   case wasm::WASM_SEC_CUSTOM: {
 138     StringRef SectionName;
 139     if (IO.outputting()) {
 140       auto CustomSection = cast<WasmYAML::CustomSection>(Section.get());
 141       SectionName = CustomSection->Name;
 142     } else {
 143       IO.mapRequired("Name", SectionName);
 144     }
 145     if (SectionName == "linking") {
 146       if (!IO.outputting())
 147         Section.reset(new WasmYAML::LinkingSection());
 148       sectionMapping(IO, *cast<WasmYAML::LinkingSection>(Section.get()));
 149     } else if (SectionName == "name") {
 150       if (!IO.outputting())
 151         Section.reset(new WasmYAML::NameSection());
 152       sectionMapping(IO, *cast<WasmYAML::NameSection>(Section.get()));
 153     } else {
 154       if (!IO.outputting())
 155         Section.reset(new WasmYAML::CustomSection(SectionName));
 156       sectionMapping(IO, *cast<WasmYAML::CustomSection>(Section.get()));
 157     }
 158     break;
 159   }
 160   case wasm::WASM_SEC_TYPE:
 161     if (!IO.outputting())
 162       Section.reset(new WasmYAML::TypeSection());
 163     sectionMapping(IO, *cast<WasmYAML::TypeSection>(Section.get()));
 164     break;
 165   case wasm::WASM_SEC_IMPORT:
 166     if (!IO.outputting())
 167       Section.reset(new WasmYAML::ImportSection());
 168     sectionMapping(IO, *cast<WasmYAML::ImportSection>(Section.get()));
 169     break;
 170   case wasm::WASM_SEC_FUNCTION:
 171     if (!IO.outputting())
 172       Section.reset(new WasmYAML::FunctionSection());
 173     sectionMapping(IO, *cast<WasmYAML::FunctionSection>(Section.get()));
 174     break;
 175   case wasm::WASM_SEC_TABLE:
 176     if (!IO.outputting())
 177       Section.reset(new WasmYAML::TableSection());
 178     sectionMapping(IO, *cast<WasmYAML::TableSection>(Section.get()));
 179     break;
 180   case wasm::WASM_SEC_MEMORY:
 181     if (!IO.outputting())
 182       Section.reset(new WasmYAML::MemorySection());
 183     sectionMapping(IO, *cast<WasmYAML::MemorySection>(Section.get()));
 184     break;
 185   case wasm::WASM_SEC_GLOBAL:
 186     if (!IO.outputting())
 187       Section.reset(new WasmYAML::GlobalSection());
 188     sectionMapping(IO, *cast<WasmYAML::GlobalSection>(Section.get()));
 189     break;
 190   case wasm::WASM_SEC_EXPORT:
 191     if (!IO.outputting())
 192       Section.reset(new WasmYAML::ExportSection());
 193     sectionMapping(IO, *cast<WasmYAML::ExportSection>(Section.get()));
 194     break;
 195   case wasm::WASM_SEC_START:
 196     if (!IO.outputting())
 197       Section.reset(new WasmYAML::StartSection());
 198     sectionMapping(IO, *cast<WasmYAML::StartSection>(Section.get()));
 199     break;
 200   case wasm::WASM_SEC_ELEM:
 201     if (!IO.outputting())
 202       Section.reset(new WasmYAML::ElemSection());
 203     sectionMapping(IO, *cast<WasmYAML::ElemSection>(Section.get()));
 204     break;
 205   case wasm::WASM_SEC_CODE:
 206     if (!IO.outputting())
 207       Section.reset(new WasmYAML::CodeSection());
 208     sectionMapping(IO, *cast<WasmYAML::CodeSection>(Section.get()));
 209     break;
 210   case wasm::WASM_SEC_DATA:
 211     if (!IO.outputting())
 212       Section.reset(new WasmYAML::DataSection());
 213     sectionMapping(IO, *cast<WasmYAML::DataSection>(Section.get()));
 214     break;
 215   default:
 216     llvm_unreachable("Unknown section type");
 217   }
 218 }
 219
 220 void ScalarEnumerationTraits<WasmYAML::SectionType>::enumeration(
 221     IO &IO, WasmYAML::SectionType &Type) {
 222 #define ECase(X) IO.enumCase(Type, #X, wasm::WASM_SEC_##X);
 223   ECase(CUSTOM);
 224   ECase(TYPE);
 225   ECase(IMPORT);
 226   ECase(FUNCTION);
 227   ECase(TABLE);
 228   ECase(MEMORY);
 229   ECase(GLOBAL);
 230   ECase(EXPORT);
 231   ECase(START);
 232   ECase(ELEM);
 233   ECase(CODE);
 234   ECase(DATA);
 235 #undef ECase
 236 }
 237
 238 void MappingTraits<WasmYAML::Signature>::mapping(
 239     IO &IO, WasmYAML::Signature &Signature) {
 240   IO.mapRequired("Index", Signature.Index);
 241   IO.mapRequired("ReturnType", Signature.ReturnType);
 242   IO.mapRequired("ParamTypes", Signature.ParamTypes);
 243 }
 244
 245 void MappingTraits<WasmYAML::Table>::mapping(IO &IO, WasmYAML::Table &Table) {
 246   IO.mapRequired("ElemType", Table.ElemType);
 247   IO.mapRequired("Limits", Table.TableLimits);
 248 }
 249
 250 void MappingTraits<WasmYAML::Function>::mapping(IO &IO,
 251                                                 WasmYAML::Function &Function) {
 252   IO.mapRequired("Index", Function.Index);
 253   IO.mapRequired("Locals", Function.Locals);
 254   IO.mapRequired("Body", Function.Body);
 255 }
 256
 257 void MappingTraits<WasmYAML::Relocation>::mapping(
 258     IO &IO, WasmYAML::Relocation &Relocation) {
 259   IO.mapRequired("Type", Relocation.Type);
 260   IO.mapRequired("Index", Relocation.Index);
 261   IO.mapRequired("Offset", Relocation.Offset);
 262   IO.mapOptional("Addend", Relocation.Addend, 0);
 263 }
 264
 265 void MappingTraits<WasmYAML::NameEntry>::mapping(
 266     IO &IO, WasmYAML::NameEntry &NameEntry) {
 267   IO.mapRequired("Index", NameEntry.Index);
 268   IO.mapRequired("Name", NameEntry.Name);
 269 }
 270
 271 void MappingTraits<WasmYAML::SegmentInfo>::mapping(
 272     IO &IO, WasmYAML::SegmentInfo &SegmentInfo) {
 273   IO.mapRequired("Index", SegmentInfo.Index);
 274   IO.mapRequired("Name", SegmentInfo.Name);
 275   IO.mapRequired("Alignment", SegmentInfo.Alignment);
 276   IO.mapRequired("Flags", SegmentInfo.Flags);
 277 }
 278
 279 void MappingTraits<WasmYAML::LocalDecl>::mapping(
 280     IO &IO, WasmYAML::LocalDecl &LocalDecl) {
 281   IO.mapRequired("Type", LocalDecl.Type);
 282   IO.mapRequired("Count", LocalDecl.Count);
 283 }
 284
 285 void MappingTraits<WasmYAML::Limits>::mapping(IO &IO,
 286                                               WasmYAML::Limits &Limits) {
 287   if (!IO.outputting() || Limits.Flags)
 288     IO.mapOptional("Flags", Limits.Flags);
 289   IO.mapRequired("Initial", Limits.Initial);
 290   if (!IO.outputting() || Limits.Flags & wasm::WASM_LIMITS_FLAG_HAS_MAX)
 291     IO.mapOptional("Maximum", Limits.Maximum);
 292 }
 293
 294 void MappingTraits<WasmYAML::ElemSegment>::mapping(
 295     IO &IO, WasmYAML::ElemSegment &Segment) {
 296   IO.mapRequired("Offset", Segment.Offset);
 297   IO.mapRequired("Functions", Segment.Functions);
 298 }
 299
 300 void MappingTraits<WasmYAML::Import>::mapping(IO &IO,
 301                                               WasmYAML::Import &Import) {
 302   IO.mapRequired("Module", Import.Module);
 303   IO.mapRequired("Field", Import.Field);
 304   IO.mapRequired("Kind", Import.Kind);
 305   if (Import.Kind == wasm::WASM_EXTERNAL_FUNCTION) {
 306     IO.mapRequired("SigIndex", Import.SigIndex);
 307   } else if (Import.Kind == wasm::WASM_EXTERNAL_GLOBAL) {
 308     IO.mapRequired("GlobalType", Import.GlobalImport.Type);
 309     IO.mapRequired("GlobalMutable", Import.GlobalImport.Mutable);
 310   } else if (Import.Kind == wasm::WASM_EXTERNAL_TABLE) {
 311     IO.mapRequired("Table", Import.TableImport);
 312   } else if (Import.Kind == wasm::WASM_EXTERNAL_MEMORY ) {
 313     IO.mapRequired("Memory", Import.Memory);
 314   } else {
 315     llvm_unreachable("unhandled import type");
 316   }
 317 }
 318
 319 void MappingTraits<WasmYAML::Export>::mapping(IO &IO,
 320                                               WasmYAML::Export &Export) {
 321   IO.mapRequired("Name", Export.Name);
 322   IO.mapRequired("Kind", Export.Kind);
 323   IO.mapRequired("Index", Export.Index);
 324 }
 325
 326 void MappingTraits<WasmYAML::Global>::mapping(IO &IO,
 327                                               WasmYAML::Global &Global) {
 328   IO.mapRequired("Index", Global.Index);
 329   IO.mapRequired("Type", Global.Type);
 330   IO.mapRequired("Mutable", Global.Mutable);
 331   IO.mapRequired("InitExpr", Global.InitExpr);
 332 }
 333
 334 void MappingTraits<wasm::WasmInitExpr>::mapping(IO &IO,
 335                                                 wasm::WasmInitExpr &Expr) {
 336   WasmYAML::Opcode Op = Expr.Opcode;
 337   IO.mapRequired("Opcode", Op);
 338   Expr.Opcode = Op;
 339   switch (Expr.Opcode) {
 340   case wasm::WASM_OPCODE_I32_CONST:
 341     IO.mapRequired("Value", Expr.Value.Int32);
 342     break;
 343   case wasm::WASM_OPCODE_I64_CONST:
 344     IO.mapRequired("Value", Expr.Value.Int64);
 345     break;
 346   case wasm::WASM_OPCODE_F32_CONST:
 347     IO.mapRequired("Value", Expr.Value.Float32);
 348     break;
 349   case wasm::WASM_OPCODE_F64_CONST:
 350     IO.mapRequired("Value", Expr.Value.Float64);
 351     break;
 352   case wasm::WASM_OPCODE_GET_GLOBAL:
 353     IO.mapRequired("Index", Expr.Value.Global);
 354     break;
 355   }
 356 }
 357
 358 void MappingTraits<WasmYAML::DataSegment>::mapping(
 359     IO &IO, WasmYAML::DataSegment &Segment) {
 360   IO.mapOptional("SectionOffset", Segment.SectionOffset);
 361   IO.mapRequired("MemoryIndex", Segment.MemoryIndex);
 362   IO.mapRequired("Offset", Segment.Offset);
 363   IO.mapRequired("Content", Segment.Content);
 364 }
 365
 366 void MappingTraits<WasmYAML::InitFunction>::mapping(
 367     IO &IO, WasmYAML::InitFunction &Init) {
 368   IO.mapRequired("Priority", Init.Priority);
 369   IO.mapRequired("Symbol", Init.Symbol);
 370 }
 371
 372 void ScalarEnumerationTraits<WasmYAML::ComdatKind>::enumeration(
 373     IO &IO, WasmYAML::ComdatKind &Kind) {
 374 #define ECase(X) IO.enumCase(Kind, #X, wasm::WASM_COMDAT_##X);
 375   ECase(FUNCTION);
 376   ECase(DATA);
 377 #undef ECase
 378 }
 379
 380 void MappingTraits<WasmYAML::ComdatEntry>::mapping(
 381     IO &IO, WasmYAML::ComdatEntry &ComdatEntry) {
 382   IO.mapRequired("Kind", ComdatEntry.Kind);
 383   IO.mapRequired("Index", ComdatEntry.Index);
 384 }
 385
 386 void MappingTraits<WasmYAML::Comdat>::mapping(
 387     IO &IO, WasmYAML::Comdat &Comdat) {
 388   IO.mapRequired("Name", Comdat.Name);
 389   IO.mapRequired("Entries", Comdat.Entries);
 390 }
 391
 392 void MappingTraits<WasmYAML::SymbolInfo>::mapping(IO &IO,
 393                                                   WasmYAML::SymbolInfo &Info) {
 394   IO.mapRequired("Index", Info.Index);
 395   IO.mapRequired("Kind", Info.Kind);
 396   IO.mapRequired("Name", Info.Name);
 397   IO.mapRequired("Flags", Info.Flags);
 398   if (Info.Kind == wasm::WASM_SYMBOL_TYPE_FUNCTION) {
 399     IO.mapRequired("Function", Info.ElementIndex);
 400   } else if (Info.Kind == wasm::WASM_SYMBOL_TYPE_GLOBAL) {
 401     IO.mapRequired("Global", Info.ElementIndex);
 402   } else if (Info.Kind == wasm::WASM_SYMBOL_TYPE_DATA) {
 403     if ((Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0) {
 404       IO.mapRequired("Segment", Info.DataRef.Segment);
 405       IO.mapOptional("Offset", Info.DataRef.Offset, 0u);
 406       IO.mapRequired("Size", Info.DataRef.Size);
 407     }
 408   } else if (Info.Kind == wasm::WASM_SYMBOL_TYPE_SECTION) {
 409     IO.mapRequired("Section", Info.ElementIndex);
 410   } else {
 411     llvm_unreachable("unsupported symbol kind");
 412   }
 413 }
 414
 415 void ScalarBitSetTraits<WasmYAML::LimitFlags>::bitset(
 416     IO &IO, WasmYAML::LimitFlags &Value) {
 417 #define BCase(X) IO.bitSetCase(Value, #X, wasm::WASM_LIMITS_FLAG_##X)
 418   BCase(HAS_MAX);
 419 #undef BCase
 420 }
 421
 422 void ScalarBitSetTraits<WasmYAML::SegmentFlags>::bitset(
 423     IO &IO, WasmYAML::SegmentFlags &Value) {
 424 }
 425
 426 void ScalarBitSetTraits<WasmYAML::SymbolFlags>::bitset(
 427     IO &IO, WasmYAML::SymbolFlags &Value) {
 428 #define BCaseMask(M, X) IO.maskedBitSetCase(Value, #X, wasm::WASM_SYMBOL_##X, wasm::WASM_SYMBOL_##M)
 429   //BCaseMask(BINDING_MASK, BINDING_GLOBAL);
 430   BCaseMask(BINDING_MASK, BINDING_WEAK);
 431   BCaseMask(BINDING_MASK, BINDING_LOCAL);
 432   //BCaseMask(VISIBILITY_MASK, VISIBILITY_DEFAULT);
 433   BCaseMask(VISIBILITY_MASK, VISIBILITY_HIDDEN);
 434   BCaseMask(UNDEFINED, UNDEFINED);
 435 #undef BCaseMask
 436 }
 437
 438 void ScalarEnumerationTraits<WasmYAML::SymbolKind>::enumeration(
 439     IO &IO, WasmYAML::SymbolKind &Kind) {
 440 #define ECase(X) IO.enumCase(Kind, #X, wasm::WASM_SYMBOL_TYPE_##X);
 441   ECase(FUNCTION);
 442   ECase(DATA);
 443   ECase(GLOBAL);
 444   ECase(SECTION);
 445 #undef ECase
 446 }
 447
 448 void ScalarEnumerationTraits<WasmYAML::ValueType>::enumeration(
 449     IO &IO, WasmYAML::ValueType &Type) {
 450 #define ECase(X) IO.enumCase(Type, #X, wasm::WASM_TYPE_##X);
 451   ECase(I32);
 452   ECase(I64);
 453   ECase(F32);
 454   ECase(F64);
 455   ECase(ANYFUNC);
 456   ECase(FUNC);
 457   ECase(NORESULT);
 458 #undef ECase
 459 }
 460
 461 void ScalarEnumerationTraits<WasmYAML::ExportKind>::enumeration(
 462     IO &IO, WasmYAML::ExportKind &Kind) {
 463 #define ECase(X) IO.enumCase(Kind, #X, wasm::WASM_EXTERNAL_##X);
 464   ECase(FUNCTION);
 465   ECase(TABLE);
 466   ECase(MEMORY);
 467   ECase(GLOBAL);
 468 #undef ECase
 469 }
 470
 471 void ScalarEnumerationTraits<WasmYAML::Opcode>::enumeration(
 472     IO &IO, WasmYAML::Opcode &Code) {
 473 #define ECase(X) IO.enumCase(Code, #X, wasm::WASM_OPCODE_##X);
 474   ECase(END);
 475   ECase(I32_CONST);
 476   ECase(I64_CONST);
 477   ECase(F64_CONST);
 478   ECase(F32_CONST);
 479   ECase(GET_GLOBAL);
 480 #undef ECase
 481 }
 482
 483 void ScalarEnumerationTraits<WasmYAML::TableType>::enumeration(
 484     IO &IO, WasmYAML::TableType &Type) {
 485 #define ECase(X) IO.enumCase(Type, #X, wasm::WASM_TYPE_##X);
 486   ECase(ANYFUNC);
 487 #undef ECase
 488 }
 489
 490 void ScalarEnumerationTraits<WasmYAML::RelocType>::enumeration(
 491     IO &IO, WasmYAML::RelocType &Type) {
 492 #define WASM_RELOC(name, value) IO.enumCase(Type, #name, wasm::name);
 493 #include "llvm/BinaryFormat/WasmRelocs.def"
 494 #undef WASM_RELOC
 495 }
 496
 497 } // end namespace yaml
 498
 499 } // end namespace llvm