tools/llvm-readobj/COFFDumper.cpp

   1 //===-- COFFDumper.cpp - COFF-specific dumper -------------------*- 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 /// \file
  11 /// \brief This file implements the COFF-specific dumper for llvm-readobj.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm-readobj.h"
  16 #include "ARMWinEHPrinter.h"
  17 #include "Error.h"
  18 #include "ObjDumper.h"
  19 #include "StreamWriter.h"
  20 #include "Win64EHDumper.h"
  21 #include "llvm/ADT/DenseMap.h"
  22 #include "llvm/ADT/SmallString.h"
  23 #include "llvm/Object/COFF.h"
  24 #include "llvm/Object/ObjectFile.h"
  25 #include "llvm/Support/COFF.h"
  26 #include "llvm/Support/Casting.h"
  27 #include "llvm/Support/Compiler.h"
  28 #include "llvm/Support/DataExtractor.h"
  29 #include "llvm/Support/Format.h"
  30 #include "llvm/Support/SourceMgr.h"
  31 #include "llvm/Support/Win64EH.h"
  32 #include "llvm/Support/raw_ostream.h"
  33 #include <algorithm>
  34 #include <cstring>
  35 #include <system_error>
  36 #include <time.h>
  37
  38 using namespace llvm;
  39 using namespace llvm::object;
  40 using namespace llvm::Win64EH;
  41
  42 namespace {
  43
  44 class COFFDumper : public ObjDumper {
  45 public:
  46   COFFDumper(const llvm::object::COFFObjectFile *Obj, StreamWriter& Writer)
  47     : ObjDumper(Writer)
  48     , Obj(Obj) {
  49     cacheRelocations();
  50   }
  51
  52   void printFileHeaders() override;
  53   void printSections() override;
  54   void printRelocations() override;
  55   void printSymbols() override;
  56   void printDynamicSymbols() override;
  57   void printUnwindInfo() override;
  58   void printCOFFImports() override;
  59   void printCOFFDirectives() override;
  60
  61 private:
  62   void printSymbol(const SymbolRef &Sym);
  63   void printRelocation(const SectionRef &Section, const RelocationRef &Reloc);
  64   void printDataDirectory(uint32_t Index, const std::string &FieldName);
  65
  66   template <class PEHeader> void printPEHeader(const PEHeader *Hdr);
  67   void printBaseOfDataField(const pe32_header *Hdr);
  68   void printBaseOfDataField(const pe32plus_header *Hdr);
  69
  70   void printCodeViewLineTables(const SectionRef &Section);
  71
  72   void cacheRelocations();
  73
  74   std::error_code resolveSymbol(const coff_section *Section, uint64_t Offset,
  75                                 SymbolRef &Sym);
  76   std::error_code resolveSymbolName(const coff_section *Section,
  77                                     uint64_t Offset, StringRef &Name);
  78   void printImportedSymbols(iterator_range<imported_symbol_iterator> Range);
  79
  80   typedef DenseMap<const coff_section*, std::vector<RelocationRef> > RelocMapTy;
  81
  82   const llvm::object::COFFObjectFile *Obj;
  83   RelocMapTy RelocMap;
  84   StringRef CVFileIndexToStringOffsetTable;
  85   StringRef CVStringTable;
  86 };
  87
  88 } // namespace
  89
  90
  91 namespace llvm {
  92
  93 std::error_code createCOFFDumper(const object::ObjectFile *Obj,
  94                                  StreamWriter &Writer,
  95                                  std::unique_ptr<ObjDumper> &Result) {
  96   const COFFObjectFile *COFFObj = dyn_cast<COFFObjectFile>(Obj);
  97   if (!COFFObj)
  98     return readobj_error::unsupported_obj_file_format;
  99
 100   Result.reset(new COFFDumper(COFFObj, Writer));
 101   return readobj_error::success;
 102 }
 103
 104 } // namespace llvm
 105
 106 // Given a a section and an offset into this section the function returns the
 107 // symbol used for the relocation at the offset.
 108 std::error_code COFFDumper::resolveSymbol(const coff_section *Section,
 109                                           uint64_t Offset, SymbolRef &Sym) {
 110   const auto &Relocations = RelocMap[Section];
 111   for (const auto &Relocation : Relocations) {
 112     uint64_t RelocationOffset;
 113     if (std::error_code EC = Relocation.getOffset(RelocationOffset))
 114       return EC;
 115
 116     if (RelocationOffset == Offset) {
 117       Sym = *Relocation.getSymbol();
 118       return readobj_error::success;
 119     }
 120   }
 121   return readobj_error::unknown_symbol;
 122 }
 123
 124 // Given a section and an offset into this section the function returns the name
 125 // of the symbol used for the relocation at the offset.
 126 std::error_code COFFDumper::resolveSymbolName(const coff_section *Section,
 127                                               uint64_t Offset,
 128                                               StringRef &Name) {
 129   SymbolRef Symbol;
 130   if (std::error_code EC = resolveSymbol(Section, Offset, Symbol))
 131     return EC;
 132   if (std::error_code EC = Symbol.getName(Name))
 133     return EC;
 134   return object_error::success;
 135 }
 136
 137 static const EnumEntry<COFF::MachineTypes> ImageFileMachineType[] = {
 138   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_UNKNOWN  ),
 139   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AM33     ),
 140   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AMD64    ),
 141   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARM      ),
 142   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARMNT    ),
 143   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_EBC      ),
 144   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_I386     ),
 145   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_IA64     ),
 146   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_M32R     ),
 147   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPS16   ),
 148   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU  ),
 149   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU16),
 150   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPC  ),
 151   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPCFP),
 152   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_R4000    ),
 153   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3      ),
 154   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3DSP   ),
 155   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH4      ),
 156   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH5      ),
 157   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_THUMB    ),
 158   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_WCEMIPSV2)
 159 };
 160
 161 static const EnumEntry<COFF::Characteristics> ImageFileCharacteristics[] = {
 162   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_RELOCS_STRIPPED        ),
 163   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_EXECUTABLE_IMAGE       ),
 164   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LINE_NUMS_STRIPPED     ),
 165   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LOCAL_SYMS_STRIPPED    ),
 166   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_AGGRESSIVE_WS_TRIM     ),
 167   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LARGE_ADDRESS_AWARE    ),
 168   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_LO      ),
 169   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_32BIT_MACHINE          ),
 170   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DEBUG_STRIPPED         ),
 171   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP),
 172   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_NET_RUN_FROM_SWAP      ),
 173   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_SYSTEM                 ),
 174   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DLL                    ),
 175   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_UP_SYSTEM_ONLY         ),
 176   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_HI      )
 177 };
 178
 179 static const EnumEntry<COFF::WindowsSubsystem> PEWindowsSubsystem[] = {
 180   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_UNKNOWN                ),
 181   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_NATIVE                 ),
 182   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_GUI            ),
 183   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_CUI            ),
 184   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_POSIX_CUI              ),
 185   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI         ),
 186   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_APPLICATION        ),
 187   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER),
 188   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER     ),
 189   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_ROM                ),
 190   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_XBOX                   ),
 191 };
 192
 193 static const EnumEntry<COFF::DLLCharacteristics> PEDLLCharacteristics[] = {
 194   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA      ),
 195   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE         ),
 196   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY      ),
 197   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT            ),
 198   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION         ),
 199   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_SEH               ),
 200   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_BIND              ),
 201   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_APPCONTAINER         ),
 202   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_WDM_DRIVER           ),
 203   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_GUARD_CF             ),
 204   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE),
 205 };
 206
 207 static const EnumEntry<COFF::SectionCharacteristics>
 208 ImageSectionCharacteristics[] = {
 209   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_TYPE_NO_PAD           ),
 210   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_CODE              ),
 211   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_INITIALIZED_DATA  ),
 212   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_UNINITIALIZED_DATA),
 213   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_OTHER             ),
 214   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_INFO              ),
 215   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_REMOVE            ),
 216   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_COMDAT            ),
 217   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_GPREL                 ),
 218   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PURGEABLE         ),
 219   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_16BIT             ),
 220   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_LOCKED            ),
 221   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PRELOAD           ),
 222   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1BYTES          ),
 223   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2BYTES          ),
 224   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4BYTES          ),
 225   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8BYTES          ),
 226   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_16BYTES         ),
 227   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_32BYTES         ),
 228   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_64BYTES         ),
 229   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_128BYTES        ),
 230   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_256BYTES        ),
 231   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_512BYTES        ),
 232   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1024BYTES       ),
 233   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2048BYTES       ),
 234   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4096BYTES       ),
 235   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8192BYTES       ),
 236   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_NRELOC_OVFL       ),
 237   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_DISCARDABLE       ),
 238   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_CACHED        ),
 239   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_PAGED         ),
 240   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_SHARED            ),
 241   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_EXECUTE           ),
 242   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_READ              ),
 243   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_WRITE             )
 244 };
 245
 246 static const EnumEntry<COFF::SymbolBaseType> ImageSymType[] = {
 247   { "Null"  , COFF::IMAGE_SYM_TYPE_NULL   },
 248   { "Void"  , COFF::IMAGE_SYM_TYPE_VOID   },
 249   { "Char"  , COFF::IMAGE_SYM_TYPE_CHAR   },
 250   { "Short" , COFF::IMAGE_SYM_TYPE_SHORT  },
 251   { "Int"   , COFF::IMAGE_SYM_TYPE_INT    },
 252   { "Long"  , COFF::IMAGE_SYM_TYPE_LONG   },
 253   { "Float" , COFF::IMAGE_SYM_TYPE_FLOAT  },
 254   { "Double", COFF::IMAGE_SYM_TYPE_DOUBLE },
 255   { "Struct", COFF::IMAGE_SYM_TYPE_STRUCT },
 256   { "Union" , COFF::IMAGE_SYM_TYPE_UNION  },
 257   { "Enum"  , COFF::IMAGE_SYM_TYPE_ENUM   },
 258   { "MOE"   , COFF::IMAGE_SYM_TYPE_MOE    },
 259   { "Byte"  , COFF::IMAGE_SYM_TYPE_BYTE   },
 260   { "Word"  , COFF::IMAGE_SYM_TYPE_WORD   },
 261   { "UInt"  , COFF::IMAGE_SYM_TYPE_UINT   },
 262   { "DWord" , COFF::IMAGE_SYM_TYPE_DWORD  }
 263 };
 264
 265 static const EnumEntry<COFF::SymbolComplexType> ImageSymDType[] = {
 266   { "Null"    , COFF::IMAGE_SYM_DTYPE_NULL     },
 267   { "Pointer" , COFF::IMAGE_SYM_DTYPE_POINTER  },
 268   { "Function", COFF::IMAGE_SYM_DTYPE_FUNCTION },
 269   { "Array"   , COFF::IMAGE_SYM_DTYPE_ARRAY    }
 270 };
 271
 272 static const EnumEntry<COFF::SymbolStorageClass> ImageSymClass[] = {
 273   { "EndOfFunction"  , COFF::IMAGE_SYM_CLASS_END_OF_FUNCTION  },
 274   { "Null"           , COFF::IMAGE_SYM_CLASS_NULL             },
 275   { "Automatic"      , COFF::IMAGE_SYM_CLASS_AUTOMATIC        },
 276   { "External"       , COFF::IMAGE_SYM_CLASS_EXTERNAL         },
 277   { "Static"         , COFF::IMAGE_SYM_CLASS_STATIC           },
 278   { "Register"       , COFF::IMAGE_SYM_CLASS_REGISTER         },
 279   { "ExternalDef"    , COFF::IMAGE_SYM_CLASS_EXTERNAL_DEF     },
 280   { "Label"          , COFF::IMAGE_SYM_CLASS_LABEL            },
 281   { "UndefinedLabel" , COFF::IMAGE_SYM_CLASS_UNDEFINED_LABEL  },
 282   { "MemberOfStruct" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_STRUCT },
 283   { "Argument"       , COFF::IMAGE_SYM_CLASS_ARGUMENT         },
 284   { "StructTag"      , COFF::IMAGE_SYM_CLASS_STRUCT_TAG       },
 285   { "MemberOfUnion"  , COFF::IMAGE_SYM_CLASS_MEMBER_OF_UNION  },
 286   { "UnionTag"       , COFF::IMAGE_SYM_CLASS_UNION_TAG        },
 287   { "TypeDefinition" , COFF::IMAGE_SYM_CLASS_TYPE_DEFINITION  },
 288   { "UndefinedStatic", COFF::IMAGE_SYM_CLASS_UNDEFINED_STATIC },
 289   { "EnumTag"        , COFF::IMAGE_SYM_CLASS_ENUM_TAG         },
 290   { "MemberOfEnum"   , COFF::IMAGE_SYM_CLASS_MEMBER_OF_ENUM   },
 291   { "RegisterParam"  , COFF::IMAGE_SYM_CLASS_REGISTER_PARAM   },
 292   { "BitField"       , COFF::IMAGE_SYM_CLASS_BIT_FIELD        },
 293   { "Block"          , COFF::IMAGE_SYM_CLASS_BLOCK            },
 294   { "Function"       , COFF::IMAGE_SYM_CLASS_FUNCTION         },
 295   { "EndOfStruct"    , COFF::IMAGE_SYM_CLASS_END_OF_STRUCT    },
 296   { "File"           , COFF::IMAGE_SYM_CLASS_FILE             },
 297   { "Section"        , COFF::IMAGE_SYM_CLASS_SECTION          },
 298   { "WeakExternal"   , COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL    },
 299   { "CLRToken"       , COFF::IMAGE_SYM_CLASS_CLR_TOKEN        }
 300 };
 301
 302 static const EnumEntry<COFF::COMDATType> ImageCOMDATSelect[] = {
 303   { "NoDuplicates", COFF::IMAGE_COMDAT_SELECT_NODUPLICATES },
 304   { "Any"         , COFF::IMAGE_COMDAT_SELECT_ANY          },
 305   { "SameSize"    , COFF::IMAGE_COMDAT_SELECT_SAME_SIZE    },
 306   { "ExactMatch"  , COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH  },
 307   { "Associative" , COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE  },
 308   { "Largest"     , COFF::IMAGE_COMDAT_SELECT_LARGEST      },
 309   { "Newest"      , COFF::IMAGE_COMDAT_SELECT_NEWEST       }
 310 };
 311
 312 static const EnumEntry<COFF::WeakExternalCharacteristics>
 313 WeakExternalCharacteristics[] = {
 314   { "NoLibrary", COFF::IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY },
 315   { "Library"  , COFF::IMAGE_WEAK_EXTERN_SEARCH_LIBRARY   },
 316   { "Alias"    , COFF::IMAGE_WEAK_EXTERN_SEARCH_ALIAS     }
 317 };
 318
 319 template <typename T>
 320 static std::error_code getSymbolAuxData(const COFFObjectFile *Obj,
 321                                         COFFSymbolRef Symbol,
 322                                         uint8_t AuxSymbolIdx, const T *&Aux) {
 323   ArrayRef<uint8_t> AuxData = Obj->getSymbolAuxData(Symbol);
 324   AuxData = AuxData.slice(AuxSymbolIdx * Obj->getSymbolTableEntrySize());
 325   Aux = reinterpret_cast<const T*>(AuxData.data());
 326   return readobj_error::success;
 327 }
 328
 329 void COFFDumper::cacheRelocations() {
 330   for (const SectionRef &S : Obj->sections()) {
 331     const coff_section *Section = Obj->getCOFFSection(S);
 332
 333     for (const RelocationRef &Reloc : S.relocations())
 334       RelocMap[Section].push_back(Reloc);
 335
 336     // Sort relocations by address.
 337     std::sort(RelocMap[Section].begin(), RelocMap[Section].end(),
 338               relocAddressLess);
 339   }
 340 }
 341
 342 void COFFDumper::printDataDirectory(uint32_t Index, const std::string &FieldName) {
 343   const data_directory *Data;
 344   if (Obj->getDataDirectory(Index, Data))
 345     return;
 346   W.printHex(FieldName + "RVA", Data->RelativeVirtualAddress);
 347   W.printHex(FieldName + "Size", Data->Size);
 348 }
 349
 350 void COFFDumper::printFileHeaders() {
 351   time_t TDS = Obj->getTimeDateStamp();
 352   char FormattedTime[20] = { };
 353   strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS));
 354
 355   {
 356     DictScope D(W, "ImageFileHeader");
 357     W.printEnum  ("Machine", Obj->getMachine(),
 358                     makeArrayRef(ImageFileMachineType));
 359     W.printNumber("SectionCount", Obj->getNumberOfSections());
 360     W.printHex   ("TimeDateStamp", FormattedTime, Obj->getTimeDateStamp());
 361     W.printHex   ("PointerToSymbolTable", Obj->getPointerToSymbolTable());
 362     W.printNumber("SymbolCount", Obj->getNumberOfSymbols());
 363     W.printNumber("OptionalHeaderSize", Obj->getSizeOfOptionalHeader());
 364     W.printFlags ("Characteristics", Obj->getCharacteristics(),
 365                     makeArrayRef(ImageFileCharacteristics));
 366   }
 367
 368   // Print PE header. This header does not exist if this is an object file and
 369   // not an executable.
 370   const pe32_header *PEHeader = nullptr;
 371   if (error(Obj->getPE32Header(PEHeader)))
 372     return;
 373   if (PEHeader)
 374     printPEHeader<pe32_header>(PEHeader);
 375
 376   const pe32plus_header *PEPlusHeader = nullptr;
 377   if (error(Obj->getPE32PlusHeader(PEPlusHeader)))
 378     return;
 379   if (PEPlusHeader)
 380     printPEHeader<pe32plus_header>(PEPlusHeader);
 381 }
 382
 383 template <class PEHeader>
 384 void COFFDumper::printPEHeader(const PEHeader *Hdr) {
 385   DictScope D(W, "ImageOptionalHeader");
 386   W.printNumber("MajorLinkerVersion", Hdr->MajorLinkerVersion);
 387   W.printNumber("MinorLinkerVersion", Hdr->MinorLinkerVersion);
 388   W.printNumber("SizeOfCode", Hdr->SizeOfCode);
 389   W.printNumber("SizeOfInitializedData", Hdr->SizeOfInitializedData);
 390   W.printNumber("SizeOfUninitializedData", Hdr->SizeOfUninitializedData);
 391   W.printHex   ("AddressOfEntryPoint", Hdr->AddressOfEntryPoint);
 392   W.printHex   ("BaseOfCode", Hdr->BaseOfCode);
 393   printBaseOfDataField(Hdr);
 394   W.printHex   ("ImageBase", Hdr->ImageBase);
 395   W.printNumber("SectionAlignment", Hdr->SectionAlignment);
 396   W.printNumber("FileAlignment", Hdr->FileAlignment);
 397   W.printNumber("MajorOperatingSystemVersion",
 398                 Hdr->MajorOperatingSystemVersion);
 399   W.printNumber("MinorOperatingSystemVersion",
 400                 Hdr->MinorOperatingSystemVersion);
 401   W.printNumber("MajorImageVersion", Hdr->MajorImageVersion);
 402   W.printNumber("MinorImageVersion", Hdr->MinorImageVersion);
 403   W.printNumber("MajorSubsystemVersion", Hdr->MajorSubsystemVersion);
 404   W.printNumber("MinorSubsystemVersion", Hdr->MinorSubsystemVersion);
 405   W.printNumber("SizeOfImage", Hdr->SizeOfImage);
 406   W.printNumber("SizeOfHeaders", Hdr->SizeOfHeaders);
 407   W.printEnum  ("Subsystem", Hdr->Subsystem, makeArrayRef(PEWindowsSubsystem));
 408   W.printFlags ("Subsystem", Hdr->DLLCharacteristics,
 409                 makeArrayRef(PEDLLCharacteristics));
 410   W.printNumber("SizeOfStackReserve", Hdr->SizeOfStackReserve);
 411   W.printNumber("SizeOfStackCommit", Hdr->SizeOfStackCommit);
 412   W.printNumber("SizeOfHeapReserve", Hdr->SizeOfHeapReserve);
 413   W.printNumber("SizeOfHeapCommit", Hdr->SizeOfHeapCommit);
 414   W.printNumber("NumberOfRvaAndSize", Hdr->NumberOfRvaAndSize);
 415
 416   if (Hdr->NumberOfRvaAndSize > 0) {
 417     DictScope D(W, "DataDirectory");
 418     static const char * const directory[] = {
 419       "ExportTable", "ImportTable", "ResourceTable", "ExceptionTable",
 420       "CertificateTable", "BaseRelocationTable", "Debug", "Architecture",
 421       "GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT",
 422       "DelayImportDescriptor", "CLRRuntimeHeader", "Reserved"
 423     };
 424
 425     for (uint32_t i = 0; i < Hdr->NumberOfRvaAndSize; ++i) {
 426       printDataDirectory(i, directory[i]);
 427     }
 428   }
 429 }
 430
 431 void COFFDumper::printBaseOfDataField(const pe32_header *Hdr) {
 432   W.printHex("BaseOfData", Hdr->BaseOfData);
 433 }
 434
 435 void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
 436
 437 void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
 438   StringRef Data;
 439   if (error(Section.getContents(Data)))
 440     return;
 441
 442   SmallVector<StringRef, 10> FunctionNames;
 443   StringMap<StringRef> FunctionLineTables;
 444
 445   ListScope D(W, "CodeViewLineTables");
 446   {
 447     DataExtractor DE(Data, true, 4);
 448     uint32_t Offset = 0,
 449              Magic = DE.getU32(&Offset);
 450     W.printHex("Magic", Magic);
 451     if (Magic != COFF::DEBUG_SECTION_MAGIC) {
 452       error(object_error::parse_failed);
 453       return;
 454     }
 455
 456     bool Finished = false;
 457     while (DE.isValidOffset(Offset) && !Finished) {
 458       // The section consists of a number of subsection in the following format:
 459       // |Type|PayloadSize|Payload...|
 460       uint32_t SubSectionType = DE.getU32(&Offset),
 461                PayloadSize = DE.getU32(&Offset);
 462       ListScope S(W, "Subsection");
 463       W.printHex("Type", SubSectionType);
 464       W.printHex("PayloadSize", PayloadSize);
 465       if (PayloadSize > Data.size() - Offset) {
 466         error(object_error::parse_failed);
 467         return;
 468       }
 469
 470       // Print the raw contents to simplify debugging if anything goes wrong
 471       // afterwards.
 472       StringRef Contents = Data.substr(Offset, PayloadSize);
 473       W.printBinaryBlock("Contents", Contents);
 474
 475       switch (SubSectionType) {
 476       case COFF::DEBUG_LINE_TABLE_SUBSECTION: {
 477         // Holds a PC to file:line table.  Some data to parse this subsection is
 478         // stored in the other subsections, so just check sanity and store the
 479         // pointers for deferred processing.
 480
 481         if (PayloadSize < 12) {
 482           // There should be at least three words to store two function
 483           // relocations and size of the code.
 484           error(object_error::parse_failed);
 485           return;
 486         }
 487
 488         StringRef FunctionName;
 489         if (error(resolveSymbolName(Obj->getCOFFSection(Section), Offset,
 490                                     FunctionName)))
 491           return;
 492         W.printString("FunctionName", FunctionName);
 493         if (FunctionLineTables.count(FunctionName) != 0) {
 494           // Saw debug info for this function already?
 495           error(object_error::parse_failed);
 496           return;
 497         }
 498
 499         FunctionLineTables[FunctionName] = Contents;
 500         FunctionNames.push_back(FunctionName);
 501         break;
 502       }
 503       case COFF::DEBUG_STRING_TABLE_SUBSECTION:
 504         if (PayloadSize == 0 || CVStringTable.data() != nullptr ||
 505             Contents.back() != '\0') {
 506           // Empty or duplicate or non-null-terminated subsection.
 507           error(object_error::parse_failed);
 508           return;
 509         }
 510         CVStringTable = Contents;
 511         break;
 512       case COFF::DEBUG_INDEX_SUBSECTION:
 513         // Holds the translation table from file indices
 514         // to offsets in the string table.
 515
 516         if (PayloadSize == 0 ||
 517             CVFileIndexToStringOffsetTable.data() != nullptr) {
 518           // Empty or duplicate subsection.
 519           error(object_error::parse_failed);
 520           return;
 521         }
 522         CVFileIndexToStringOffsetTable = Contents;
 523         break;
 524       }
 525       Offset += PayloadSize;
 526
 527       // Align the reading pointer by 4.
 528       Offset += (-Offset) % 4;
 529     }
 530   }
 531
 532   // Dump the line tables now that we've read all the subsections and know all
 533   // the required information.
 534   for (unsigned I = 0, E = FunctionNames.size(); I != E; ++I) {
 535     StringRef Name = FunctionNames[I];
 536     ListScope S(W, "FunctionLineTable");
 537     W.printString("FunctionName", Name);
 538
 539     DataExtractor DE(FunctionLineTables[Name], true, 4);
 540     uint32_t Offset = 8;  // Skip relocations.
 541     uint32_t FunctionSize = DE.getU32(&Offset);
 542     W.printHex("CodeSize", FunctionSize);
 543     while (DE.isValidOffset(Offset)) {
 544       // For each range of lines with the same filename, we have a segment
 545       // in the line table.  The filename string is accessed using double
 546       // indirection to the string table subsection using the index subsection.
 547       uint32_t OffsetInIndex = DE.getU32(&Offset),
 548                SegmentLength   = DE.getU32(&Offset),
 549                FullSegmentSize = DE.getU32(&Offset);
 550       if (FullSegmentSize != 12 + 8 * SegmentLength) {
 551         error(object_error::parse_failed);
 552         return;
 553       }
 554
 555       uint32_t FilenameOffset;
 556       {
 557         DataExtractor SDE(CVFileIndexToStringOffsetTable, true, 4);
 558         uint32_t OffsetInSDE = OffsetInIndex;
 559         if (!SDE.isValidOffset(OffsetInSDE)) {
 560           error(object_error::parse_failed);
 561           return;
 562         }
 563         FilenameOffset = SDE.getU32(&OffsetInSDE);
 564       }
 565
 566       if (FilenameOffset == 0 || FilenameOffset + 1 >= CVStringTable.size() ||
 567           CVStringTable.data()[FilenameOffset - 1] != '\0') {
 568         // Each string in an F3 subsection should be preceded by a null
 569         // character.
 570         error(object_error::parse_failed);
 571         return;
 572       }
 573
 574       StringRef Filename(CVStringTable.data() + FilenameOffset);
 575       ListScope S(W, "FilenameSegment");
 576       W.printString("Filename", Filename);
 577       for (unsigned J = 0; J != SegmentLength && DE.isValidOffset(Offset);
 578            ++J) {
 579         // Then go the (PC, LineNumber) pairs.  The line number is stored in the
 580         // least significant 31 bits of the respective word in the table.
 581         uint32_t PC = DE.getU32(&Offset),
 582                  LineNumber = DE.getU32(&Offset) & 0x7fffffff;
 583         if (PC >= FunctionSize) {
 584           error(object_error::parse_failed);
 585           return;
 586         }
 587         char Buffer[32];
 588         format("+0x%X", PC).snprint(Buffer, 32);
 589         W.printNumber(Buffer, LineNumber);
 590       }
 591     }
 592   }
 593 }
 594
 595 void COFFDumper::printSections() {
 596   ListScope SectionsD(W, "Sections");
 597   int SectionNumber = 0;
 598   for (const SectionRef &Sec : Obj->sections()) {
 599     ++SectionNumber;
 600     const coff_section *Section = Obj->getCOFFSection(Sec);
 601
 602     StringRef Name;
 603     if (error(Sec.getName(Name)))
 604       Name = "";
 605
 606     DictScope D(W, "Section");
 607     W.printNumber("Number", SectionNumber);
 608     W.printBinary("Name", Name, Section->Name);
 609     W.printHex   ("VirtualSize", Section->VirtualSize);
 610     W.printHex   ("VirtualAddress", Section->VirtualAddress);
 611     W.printNumber("RawDataSize", Section->SizeOfRawData);
 612     W.printHex   ("PointerToRawData", Section->PointerToRawData);
 613     W.printHex   ("PointerToRelocations", Section->PointerToRelocations);
 614     W.printHex   ("PointerToLineNumbers", Section->PointerToLinenumbers);
 615     W.printNumber("RelocationCount", Section->NumberOfRelocations);
 616     W.printNumber("LineNumberCount", Section->NumberOfLinenumbers);
 617     W.printFlags ("Characteristics", Section->Characteristics,
 618                     makeArrayRef(ImageSectionCharacteristics),
 619                     COFF::SectionCharacteristics(0x00F00000));
 620
 621     if (opts::SectionRelocations) {
 622       ListScope D(W, "Relocations");
 623       for (const RelocationRef &Reloc : Sec.relocations())
 624         printRelocation(Sec, Reloc);
 625     }
 626
 627     if (opts::SectionSymbols) {
 628       ListScope D(W, "Symbols");
 629       for (const SymbolRef &Symbol : Obj->symbols()) {
 630         if (!Sec.containsSymbol(Symbol))
 631           continue;
 632
 633         printSymbol(Symbol);
 634       }
 635     }
 636
 637     if (Name == ".debug$S" && opts::CodeViewLineTables)
 638       printCodeViewLineTables(Sec);
 639
 640     if (opts::SectionData &&
 641         !(Section->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)) {
 642       StringRef Data;
 643       if (error(Sec.getContents(Data)))
 644         break;
 645
 646       W.printBinaryBlock("SectionData", Data);
 647     }
 648   }
 649 }
 650
 651 void COFFDumper::printRelocations() {
 652   ListScope D(W, "Relocations");
 653
 654   int SectionNumber = 0;
 655   for (const SectionRef &Section : Obj->sections()) {
 656     ++SectionNumber;
 657     StringRef Name;
 658     if (error(Section.getName(Name)))
 659       continue;
 660
 661     bool PrintedGroup = false;
 662     for (const RelocationRef &Reloc : Section.relocations()) {
 663       if (!PrintedGroup) {
 664         W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
 665         W.indent();
 666         PrintedGroup = true;
 667       }
 668
 669       printRelocation(Section, Reloc);
 670     }
 671
 672     if (PrintedGroup) {
 673       W.unindent();
 674       W.startLine() << "}\n";
 675     }
 676   }
 677 }
 678
 679 void COFFDumper::printRelocation(const SectionRef &Section,
 680                                  const RelocationRef &Reloc) {
 681   uint64_t Offset;
 682   uint64_t RelocType;
 683   SmallString<32> RelocName;
 684   StringRef SymbolName;
 685   StringRef Contents;
 686   if (error(Reloc.getOffset(Offset)))
 687     return;
 688   if (error(Reloc.getType(RelocType)))
 689     return;
 690   if (error(Reloc.getTypeName(RelocName)))
 691     return;
 692   symbol_iterator Symbol = Reloc.getSymbol();
 693   if (error(Symbol->getName(SymbolName)))
 694     return;
 695   if (error(Section.getContents(Contents)))
 696     return;
 697
 698   if (opts::ExpandRelocs) {
 699     DictScope Group(W, "Relocation");
 700     W.printHex("Offset", Offset);
 701     W.printNumber("Type", RelocName, RelocType);
 702     W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
 703   } else {
 704     raw_ostream& OS = W.startLine();
 705     OS << W.hex(Offset)
 706        << " " << RelocName
 707        << " " << (SymbolName.size() > 0 ? SymbolName : "-")
 708        << "\n";
 709   }
 710 }
 711
 712 void COFFDumper::printSymbols() {
 713   ListScope Group(W, "Symbols");
 714
 715   for (const SymbolRef &Symbol : Obj->symbols())
 716     printSymbol(Symbol);
 717 }
 718
 719 void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); }
 720
 721 static StringRef getSectionName(const llvm::object::COFFObjectFile *Obj,
 722                                 COFFSymbolRef Symbol,
 723                                 const coff_section *Section) {
 724   if (Section) {
 725     StringRef SectionName;
 726     Obj->getSectionName(Section, SectionName);
 727     return SectionName;
 728   }
 729   int32_t SectionNumber = Symbol.getSectionNumber();
 730   if (SectionNumber == llvm::COFF::IMAGE_SYM_DEBUG)
 731     return "IMAGE_SYM_DEBUG";
 732   if (SectionNumber == llvm::COFF::IMAGE_SYM_ABSOLUTE)
 733     return "IMAGE_SYM_ABSOLUTE";
 734   if (SectionNumber == llvm::COFF::IMAGE_SYM_UNDEFINED)
 735     return "IMAGE_SYM_UNDEFINED";
 736   return "";
 737 }
 738
 739 void COFFDumper::printSymbol(const SymbolRef &Sym) {
 740   DictScope D(W, "Symbol");
 741
 742   COFFSymbolRef Symbol = Obj->getCOFFSymbol(Sym);
 743   const coff_section *Section;
 744   if (std::error_code EC = Obj->getSection(Symbol.getSectionNumber(), Section)) {
 745     W.startLine() << "Invalid section number: " << EC.message() << "\n";
 746     W.flush();
 747     return;
 748   }
 749
 750   StringRef SymbolName;
 751   if (Obj->getSymbolName(Symbol, SymbolName))
 752     SymbolName = "";
 753
 754   StringRef SectionName = getSectionName(Obj, Symbol, Section);
 755
 756   W.printString("Name", SymbolName);
 757   W.printNumber("Value", Symbol.getValue());
 758   W.printNumber("Section", SectionName, Symbol.getSectionNumber());
 759   W.printEnum  ("BaseType", Symbol.getBaseType(), makeArrayRef(ImageSymType));
 760   W.printEnum  ("ComplexType", Symbol.getComplexType(),
 761                                                    makeArrayRef(ImageSymDType));
 762   W.printEnum  ("StorageClass", Symbol.getStorageClass(),
 763                                                    makeArrayRef(ImageSymClass));
 764   W.printNumber("AuxSymbolCount", Symbol.getNumberOfAuxSymbols());
 765
 766   for (uint8_t I = 0; I < Symbol.getNumberOfAuxSymbols(); ++I) {
 767     if (Symbol.isFunctionDefinition()) {
 768       const coff_aux_function_definition *Aux;
 769       if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
 770         break;
 771
 772       DictScope AS(W, "AuxFunctionDef");
 773       W.printNumber("TagIndex", Aux->TagIndex);
 774       W.printNumber("TotalSize", Aux->TotalSize);
 775       W.printHex("PointerToLineNumber", Aux->PointerToLinenumber);
 776       W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
 777
 778     } else if (Symbol.isWeakExternal()) {
 779       const coff_aux_weak_external *Aux;
 780       if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
 781         break;
 782
 783       ErrorOr<COFFSymbolRef> Linked = Obj->getSymbol(Aux->TagIndex);
 784       StringRef LinkedName;
 785       std::error_code EC = Linked.getError();
 786       if (EC || (EC = Obj->getSymbolName(*Linked, LinkedName))) {
 787         LinkedName = "";
 788         error(EC);
 789       }
 790
 791       DictScope AS(W, "AuxWeakExternal");
 792       W.printNumber("Linked", LinkedName, Aux->TagIndex);
 793       W.printEnum  ("Search", Aux->Characteristics,
 794                     makeArrayRef(WeakExternalCharacteristics));
 795
 796     } else if (Symbol.isFileRecord()) {
 797       const char *FileName;
 798       if (error(getSymbolAuxData(Obj, Symbol, I, FileName)))
 799         break;
 800
 801       DictScope AS(W, "AuxFileRecord");
 802
 803       StringRef Name(FileName, Symbol.getNumberOfAuxSymbols() *
 804                                    Obj->getSymbolTableEntrySize());
 805       W.printString("FileName", Name.rtrim(StringRef("\0", 1)));
 806       break;
 807     } else if (Symbol.isSectionDefinition()) {
 808       const coff_aux_section_definition *Aux;
 809       if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
 810         break;
 811
 812       int32_t AuxNumber = Aux->getNumber(Symbol.isBigObj());
 813
 814       DictScope AS(W, "AuxSectionDef");
 815       W.printNumber("Length", Aux->Length);
 816       W.printNumber("RelocationCount", Aux->NumberOfRelocations);
 817       W.printNumber("LineNumberCount", Aux->NumberOfLinenumbers);
 818       W.printHex("Checksum", Aux->CheckSum);
 819       W.printNumber("Number", AuxNumber);
 820       W.printEnum("Selection", Aux->Selection, makeArrayRef(ImageCOMDATSelect));
 821
 822       if (Section && Section->Characteristics & COFF::IMAGE_SCN_LNK_COMDAT
 823           && Aux->Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
 824         const coff_section *Assoc;
 825         StringRef AssocName;
 826         std::error_code EC;
 827         if ((EC = Obj->getSection(AuxNumber, Assoc)) ||
 828             (EC = Obj->getSectionName(Assoc, AssocName))) {
 829           AssocName = "";
 830           error(EC);
 831         }
 832
 833         W.printNumber("AssocSection", AssocName, AuxNumber);
 834       }
 835     } else if (Symbol.isCLRToken()) {
 836       const coff_aux_clr_token *Aux;
 837       if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
 838         break;
 839
 840       ErrorOr<COFFSymbolRef> ReferredSym =
 841           Obj->getSymbol(Aux->SymbolTableIndex);
 842       StringRef ReferredName;
 843       std::error_code EC = ReferredSym.getError();
 844       if (EC || (EC = Obj->getSymbolName(*ReferredSym, ReferredName))) {
 845         ReferredName = "";
 846         error(EC);
 847       }
 848
 849       DictScope AS(W, "AuxCLRToken");
 850       W.printNumber("AuxType", Aux->AuxType);
 851       W.printNumber("Reserved", Aux->Reserved);
 852       W.printNumber("SymbolTableIndex", ReferredName, Aux->SymbolTableIndex);
 853
 854     } else {
 855       W.startLine() << "<unhandled auxiliary record>\n";
 856     }
 857   }
 858 }
 859
 860 void COFFDumper::printUnwindInfo() {
 861   ListScope D(W, "UnwindInformation");
 862   switch (Obj->getMachine()) {
 863   case COFF::IMAGE_FILE_MACHINE_AMD64: {
 864     Win64EH::Dumper Dumper(W);
 865     Win64EH::Dumper::SymbolResolver
 866     Resolver = [](const object::coff_section *Section, uint64_t Offset,
 867                   SymbolRef &Symbol, void *user_data) -> std::error_code {
 868       COFFDumper *Dumper = reinterpret_cast<COFFDumper *>(user_data);
 869       return Dumper->resolveSymbol(Section, Offset, Symbol);
 870     };
 871     Win64EH::Dumper::Context Ctx(*Obj, Resolver, this);
 872     Dumper.printData(Ctx);
 873     break;
 874   }
 875   case COFF::IMAGE_FILE_MACHINE_ARMNT: {
 876     ARM::WinEH::Decoder Decoder(W);
 877     Decoder.dumpProcedureData(*Obj);
 878     break;
 879   }
 880   default:
 881     W.printEnum("unsupported Image Machine", Obj->getMachine(),
 882                 makeArrayRef(ImageFileMachineType));
 883     break;
 884   }
 885 }
 886
 887 void COFFDumper::printImportedSymbols(
 888     iterator_range<imported_symbol_iterator> Range) {
 889   for (const ImportedSymbolRef &I : Range) {
 890     StringRef Sym;
 891     if (error(I.getSymbolName(Sym))) return;
 892     uint16_t Ordinal;
 893     if (error(I.getOrdinal(Ordinal))) return;
 894     W.printNumber("Symbol", Sym, Ordinal);
 895   }
 896 }
 897
 898 void COFFDumper::printCOFFImports() {
 899   // Regular imports
 900   for (const ImportDirectoryEntryRef &I : Obj->import_directories()) {
 901     DictScope Import(W, "Import");
 902     StringRef Name;
 903     if (error(I.getName(Name))) return;
 904     W.printString("Name", Name);
 905     uint32_t Addr;
 906     if (error(I.getImportLookupTableRVA(Addr))) return;
 907     W.printHex("ImportLookupTableRVA", Addr);
 908     if (error(I.getImportAddressTableRVA(Addr))) return;
 909     W.printHex("ImportAddressTableRVA", Addr);
 910     printImportedSymbols(I.imported_symbols());
 911   }
 912
 913   // Delay imports
 914   for (const DelayImportDirectoryEntryRef &I : Obj->delay_import_directories()) {
 915     DictScope Import(W, "DelayImport");
 916     StringRef Name;
 917     if (error(I.getName(Name))) return;
 918     W.printString("Name", Name);
 919     const delay_import_directory_table_entry *Table;
 920     if (error(I.getDelayImportTable(Table))) return;
 921     W.printHex("Attributes", Table->Attributes);
 922     W.printHex("ModuleHandle", Table->ModuleHandle);
 923     W.printHex("ImportAddressTable", Table->DelayImportAddressTable);
 924     W.printHex("ImportNameTable", Table->DelayImportNameTable);
 925     W.printHex("BoundDelayImportTable", Table->BoundDelayImportTable);
 926     W.printHex("UnloadDelayImportTable", Table->UnloadDelayImportTable);
 927     printImportedSymbols(I.imported_symbols());
 928   }
 929 }
 930
 931 void COFFDumper::printCOFFDirectives() {
 932   for (const SectionRef &Section : Obj->sections()) {
 933     StringRef Contents;
 934     StringRef Name;
 935
 936     if (error(Section.getName(Name)))
 937       continue;
 938     if (Name != ".drectve")
 939       continue;
 940
 941     if (error(Section.getContents(Contents)))
 942       return;
 943
 944     W.printString("Directive(s)", Contents);
 945   }
 946 }