contrib/llvm/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 "ObjDumper.h"
  17
  18 #include "Error.h"
  19 #include "StreamWriter.h"
  20
  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/Casting.h"
  26 #include "llvm/Support/Compiler.h"
  27 #include "llvm/Support/Format.h"
  28 #include "llvm/Support/SourceMgr.h"
  29 #include "llvm/Support/Win64EH.h"
  30 #include "llvm/Support/raw_ostream.h"
  31 #include "llvm/Support/system_error.h"
  32
  33 #include <algorithm>
  34 #include <cstring>
  35 #include <time.h>
  36
  37 using namespace llvm;
  38 using namespace llvm::object;
  39 using namespace llvm::Win64EH;
  40
  41 namespace {
  42
  43 class COFFDumper : public ObjDumper {
  44 public:
  45   COFFDumper(const llvm::object::COFFObjectFile *Obj, StreamWriter& Writer)
  46     : ObjDumper(Writer)
  47     , Obj(Obj) {
  48     cacheRelocations();
  49   }
  50
  51   virtual void printFileHeaders() LLVM_OVERRIDE;
  52   virtual void printSections() LLVM_OVERRIDE;
  53   virtual void printRelocations() LLVM_OVERRIDE;
  54   virtual void printSymbols() LLVM_OVERRIDE;
  55   virtual void printDynamicSymbols() LLVM_OVERRIDE;
  56   virtual void printUnwindInfo() LLVM_OVERRIDE;
  57
  58 private:
  59   void printSymbol(symbol_iterator SymI);
  60
  61   void printRelocation(section_iterator SecI, relocation_iterator RelI);
  62
  63   void printX64UnwindInfo();
  64
  65   void printRuntimeFunction(
  66     const RuntimeFunction& RTF,
  67     uint64_t OffsetInSection,
  68     const std::vector<RelocationRef> &Rels);
  69
  70   void printUnwindInfo(
  71     const Win64EH::UnwindInfo& UI,
  72     uint64_t OffsetInSection,
  73     const std::vector<RelocationRef> &Rels);
  74
  75   void printUnwindCode(const Win64EH::UnwindInfo& UI, ArrayRef<UnwindCode> UCs);
  76
  77   void cacheRelocations();
  78
  79   error_code getSectionContents(
  80     const std::vector<RelocationRef> &Rels,
  81     uint64_t Offset,
  82     ArrayRef<uint8_t> &Contents,
  83     uint64_t &Addr);
  84
  85   error_code getSection(
  86     const std::vector<RelocationRef> &Rels,
  87     uint64_t Offset,
  88     const coff_section **Section,
  89     uint64_t *AddrPtr);
  90
  91   typedef DenseMap<const coff_section*, std::vector<RelocationRef> > RelocMapTy;
  92
  93   const llvm::object::COFFObjectFile *Obj;
  94   RelocMapTy RelocMap;
  95   std::vector<RelocationRef> EmptyRelocs;
  96 };
  97
  98 } // namespace
  99
 100
 101 namespace llvm {
 102
 103 error_code createCOFFDumper(const object::ObjectFile *Obj,
 104                             StreamWriter& Writer,
 105                             OwningPtr<ObjDumper> &Result) {
 106   const COFFObjectFile *COFFObj = dyn_cast<COFFObjectFile>(Obj);
 107   if (!COFFObj)
 108     return readobj_error::unsupported_obj_file_format;
 109
 110   Result.reset(new COFFDumper(COFFObj, Writer));
 111   return readobj_error::success;
 112 }
 113
 114 } // namespace llvm
 115
 116
 117 // Returns the name of the unwind code.
 118 static StringRef getUnwindCodeTypeName(uint8_t Code) {
 119   switch(Code) {
 120   default: llvm_unreachable("Invalid unwind code");
 121   case UOP_PushNonVol: return "PUSH_NONVOL";
 122   case UOP_AllocLarge: return "ALLOC_LARGE";
 123   case UOP_AllocSmall: return "ALLOC_SMALL";
 124   case UOP_SetFPReg: return "SET_FPREG";
 125   case UOP_SaveNonVol: return "SAVE_NONVOL";
 126   case UOP_SaveNonVolBig: return "SAVE_NONVOL_FAR";
 127   case UOP_SaveXMM128: return "SAVE_XMM128";
 128   case UOP_SaveXMM128Big: return "SAVE_XMM128_FAR";
 129   case UOP_PushMachFrame: return "PUSH_MACHFRAME";
 130   }
 131 }
 132
 133 // Returns the name of a referenced register.
 134 static StringRef getUnwindRegisterName(uint8_t Reg) {
 135   switch(Reg) {
 136   default: llvm_unreachable("Invalid register");
 137   case 0: return "RAX";
 138   case 1: return "RCX";
 139   case 2: return "RDX";
 140   case 3: return "RBX";
 141   case 4: return "RSP";
 142   case 5: return "RBP";
 143   case 6: return "RSI";
 144   case 7: return "RDI";
 145   case 8: return "R8";
 146   case 9: return "R9";
 147   case 10: return "R10";
 148   case 11: return "R11";
 149   case 12: return "R12";
 150   case 13: return "R13";
 151   case 14: return "R14";
 152   case 15: return "R15";
 153   }
 154 }
 155
 156 // Calculates the number of array slots required for the unwind code.
 157 static unsigned getNumUsedSlots(const UnwindCode &UnwindCode) {
 158   switch (UnwindCode.getUnwindOp()) {
 159   default: llvm_unreachable("Invalid unwind code");
 160   case UOP_PushNonVol:
 161   case UOP_AllocSmall:
 162   case UOP_SetFPReg:
 163   case UOP_PushMachFrame:
 164     return 1;
 165   case UOP_SaveNonVol:
 166   case UOP_SaveXMM128:
 167     return 2;
 168   case UOP_SaveNonVolBig:
 169   case UOP_SaveXMM128Big:
 170     return 3;
 171   case UOP_AllocLarge:
 172     return (UnwindCode.getOpInfo() == 0) ? 2 : 3;
 173   }
 174 }
 175
 176 // Given a symbol sym this functions returns the address and section of it.
 177 static error_code resolveSectionAndAddress(const COFFObjectFile *Obj,
 178                                            const SymbolRef &Sym,
 179                                            const coff_section *&ResolvedSection,
 180                                            uint64_t &ResolvedAddr) {
 181   if (error_code EC = Sym.getAddress(ResolvedAddr))
 182     return EC;
 183
 184   section_iterator iter(Obj->begin_sections());
 185   if (error_code EC = Sym.getSection(iter))
 186     return EC;
 187
 188   ResolvedSection = Obj->getCOFFSection(iter);
 189   return object_error::success;
 190 }
 191
 192 // Given a vector of relocations for a section and an offset into this section
 193 // the function returns the symbol used for the relocation at the offset.
 194 static error_code resolveSymbol(const std::vector<RelocationRef> &Rels,
 195                                 uint64_t Offset, SymbolRef &Sym) {
 196   for (std::vector<RelocationRef>::const_iterator RelI = Rels.begin(),
 197                                                   RelE = Rels.end();
 198                                                   RelI != RelE; ++RelI) {
 199     uint64_t Ofs;
 200     if (error_code EC = RelI->getOffset(Ofs))
 201       return EC;
 202
 203     if (Ofs == Offset) {
 204       if (error_code EC = RelI->getSymbol(Sym))
 205         return EC;
 206       return readobj_error::success;
 207     }
 208   }
 209
 210   return readobj_error::unknown_symbol;
 211 }
 212
 213 // Given a vector of relocations for a section and an offset into this section
 214 // the function returns the name of the symbol used for the relocation at the
 215 // offset.
 216 static error_code resolveSymbolName(const std::vector<RelocationRef> &Rels,
 217                                     uint64_t Offset, StringRef &Name) {
 218   SymbolRef Sym;
 219   if (error_code EC = resolveSymbol(Rels, Offset, Sym)) return EC;
 220   if (error_code EC = Sym.getName(Name)) return EC;
 221   return object_error::success;
 222 }
 223
 224 static const EnumEntry<COFF::MachineTypes> ImageFileMachineType[] = {
 225   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_UNKNOWN  ),
 226   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AM33     ),
 227   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AMD64    ),
 228   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARM      ),
 229   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARMV7    ),
 230   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_EBC      ),
 231   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_I386     ),
 232   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_IA64     ),
 233   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_M32R     ),
 234   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPS16   ),
 235   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU  ),
 236   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU16),
 237   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPC  ),
 238   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPCFP),
 239   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_R4000    ),
 240   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3      ),
 241   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3DSP   ),
 242   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH4      ),
 243   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH5      ),
 244   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_THUMB    ),
 245   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_WCEMIPSV2)
 246 };
 247
 248 static const EnumEntry<COFF::Characteristics> ImageFileCharacteristics[] = {
 249   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_RELOCS_STRIPPED        ),
 250   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_EXECUTABLE_IMAGE       ),
 251   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LINE_NUMS_STRIPPED     ),
 252   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LOCAL_SYMS_STRIPPED    ),
 253   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_AGGRESSIVE_WS_TRIM     ),
 254   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LARGE_ADDRESS_AWARE    ),
 255   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_LO      ),
 256   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_32BIT_MACHINE          ),
 257   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DEBUG_STRIPPED         ),
 258   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP),
 259   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_NET_RUN_FROM_SWAP      ),
 260   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_SYSTEM                 ),
 261   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DLL                    ),
 262   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_UP_SYSTEM_ONLY         ),
 263   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_HI      )
 264 };
 265
 266 static const EnumEntry<COFF::SectionCharacteristics>
 267 ImageSectionCharacteristics[] = {
 268   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_TYPE_NO_PAD           ),
 269   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_CODE              ),
 270   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_INITIALIZED_DATA  ),
 271   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_UNINITIALIZED_DATA),
 272   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_OTHER             ),
 273   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_INFO              ),
 274   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_REMOVE            ),
 275   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_COMDAT            ),
 276   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_GPREL                 ),
 277   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PURGEABLE         ),
 278   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_16BIT             ),
 279   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_LOCKED            ),
 280   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PRELOAD           ),
 281   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1BYTES          ),
 282   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2BYTES          ),
 283   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4BYTES          ),
 284   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8BYTES          ),
 285   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_16BYTES         ),
 286   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_32BYTES         ),
 287   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_64BYTES         ),
 288   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_128BYTES        ),
 289   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_256BYTES        ),
 290   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_512BYTES        ),
 291   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1024BYTES       ),
 292   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2048BYTES       ),
 293   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4096BYTES       ),
 294   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8192BYTES       ),
 295   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_NRELOC_OVFL       ),
 296   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_DISCARDABLE       ),
 297   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_CACHED        ),
 298   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_PAGED         ),
 299   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_SHARED            ),
 300   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_EXECUTE           ),
 301   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_READ              ),
 302   LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_WRITE             )
 303 };
 304
 305 static const EnumEntry<COFF::SymbolBaseType> ImageSymType[] = {
 306   { "Null"  , COFF::IMAGE_SYM_TYPE_NULL   },
 307   { "Void"  , COFF::IMAGE_SYM_TYPE_VOID   },
 308   { "Char"  , COFF::IMAGE_SYM_TYPE_CHAR   },
 309   { "Short" , COFF::IMAGE_SYM_TYPE_SHORT  },
 310   { "Int"   , COFF::IMAGE_SYM_TYPE_INT    },
 311   { "Long"  , COFF::IMAGE_SYM_TYPE_LONG   },
 312   { "Float" , COFF::IMAGE_SYM_TYPE_FLOAT  },
 313   { "Double", COFF::IMAGE_SYM_TYPE_DOUBLE },
 314   { "Struct", COFF::IMAGE_SYM_TYPE_STRUCT },
 315   { "Union" , COFF::IMAGE_SYM_TYPE_UNION  },
 316   { "Enum"  , COFF::IMAGE_SYM_TYPE_ENUM   },
 317   { "MOE"   , COFF::IMAGE_SYM_TYPE_MOE    },
 318   { "Byte"  , COFF::IMAGE_SYM_TYPE_BYTE   },
 319   { "Word"  , COFF::IMAGE_SYM_TYPE_WORD   },
 320   { "UInt"  , COFF::IMAGE_SYM_TYPE_UINT   },
 321   { "DWord" , COFF::IMAGE_SYM_TYPE_DWORD  }
 322 };
 323
 324 static const EnumEntry<COFF::SymbolComplexType> ImageSymDType[] = {
 325   { "Null"    , COFF::IMAGE_SYM_DTYPE_NULL     },
 326   { "Pointer" , COFF::IMAGE_SYM_DTYPE_POINTER  },
 327   { "Function", COFF::IMAGE_SYM_DTYPE_FUNCTION },
 328   { "Array"   , COFF::IMAGE_SYM_DTYPE_ARRAY    }
 329 };
 330
 331 static const EnumEntry<COFF::SymbolStorageClass> ImageSymClass[] = {
 332   { "EndOfFunction"  , COFF::IMAGE_SYM_CLASS_END_OF_FUNCTION  },
 333   { "Null"           , COFF::IMAGE_SYM_CLASS_NULL             },
 334   { "Automatic"      , COFF::IMAGE_SYM_CLASS_AUTOMATIC        },
 335   { "External"       , COFF::IMAGE_SYM_CLASS_EXTERNAL         },
 336   { "Static"         , COFF::IMAGE_SYM_CLASS_STATIC           },
 337   { "Register"       , COFF::IMAGE_SYM_CLASS_REGISTER         },
 338   { "ExternalDef"    , COFF::IMAGE_SYM_CLASS_EXTERNAL_DEF     },
 339   { "Label"          , COFF::IMAGE_SYM_CLASS_LABEL            },
 340   { "UndefinedLabel" , COFF::IMAGE_SYM_CLASS_UNDEFINED_LABEL  },
 341   { "MemberOfStruct" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_STRUCT },
 342   { "Argument"       , COFF::IMAGE_SYM_CLASS_ARGUMENT         },
 343   { "StructTag"      , COFF::IMAGE_SYM_CLASS_STRUCT_TAG       },
 344   { "MemberOfUnion"  , COFF::IMAGE_SYM_CLASS_MEMBER_OF_UNION  },
 345   { "UnionTag"       , COFF::IMAGE_SYM_CLASS_UNION_TAG        },
 346   { "TypeDefinition" , COFF::IMAGE_SYM_CLASS_TYPE_DEFINITION  },
 347   { "UndefinedStatic", COFF::IMAGE_SYM_CLASS_UNDEFINED_STATIC },
 348   { "EnumTag"        , COFF::IMAGE_SYM_CLASS_ENUM_TAG         },
 349   { "MemberOfEnum"   , COFF::IMAGE_SYM_CLASS_MEMBER_OF_ENUM   },
 350   { "RegisterParam"  , COFF::IMAGE_SYM_CLASS_REGISTER_PARAM   },
 351   { "BitField"       , COFF::IMAGE_SYM_CLASS_BIT_FIELD        },
 352   { "Block"          , COFF::IMAGE_SYM_CLASS_BLOCK            },
 353   { "Function"       , COFF::IMAGE_SYM_CLASS_FUNCTION         },
 354   { "EndOfStruct"    , COFF::IMAGE_SYM_CLASS_END_OF_STRUCT    },
 355   { "File"           , COFF::IMAGE_SYM_CLASS_FILE             },
 356   { "Section"        , COFF::IMAGE_SYM_CLASS_SECTION          },
 357   { "WeakExternal"   , COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL    },
 358   { "CLRToken"       , COFF::IMAGE_SYM_CLASS_CLR_TOKEN        }
 359 };
 360
 361 static const EnumEntry<COFF::COMDATType> ImageCOMDATSelect[] = {
 362   { "NoDuplicates", COFF::IMAGE_COMDAT_SELECT_NODUPLICATES },
 363   { "Any"         , COFF::IMAGE_COMDAT_SELECT_ANY          },
 364   { "SameSize"    , COFF::IMAGE_COMDAT_SELECT_SAME_SIZE    },
 365   { "ExactMatch"  , COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH  },
 366   { "Associative" , COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE  },
 367   { "Largest"     , COFF::IMAGE_COMDAT_SELECT_LARGEST      },
 368   { "Newest"      , COFF::IMAGE_COMDAT_SELECT_NEWEST       }
 369 };
 370
 371 static const EnumEntry<COFF::WeakExternalCharacteristics>
 372 WeakExternalCharacteristics[] = {
 373   { "NoLibrary", COFF::IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY },
 374   { "Library"  , COFF::IMAGE_WEAK_EXTERN_SEARCH_LIBRARY   },
 375   { "Alias"    , COFF::IMAGE_WEAK_EXTERN_SEARCH_ALIAS     }
 376 };
 377
 378 static const EnumEntry<unsigned> UnwindFlags[] = {
 379   { "ExceptionHandler", Win64EH::UNW_ExceptionHandler },
 380   { "TerminateHandler", Win64EH::UNW_TerminateHandler },
 381   { "ChainInfo"       , Win64EH::UNW_ChainInfo        }
 382 };
 383
 384 static const EnumEntry<unsigned> UnwindOpInfo[] = {
 385   { "RAX",  0 },
 386   { "RCX",  1 },
 387   { "RDX",  2 },
 388   { "RBX",  3 },
 389   { "RSP",  4 },
 390   { "RBP",  5 },
 391   { "RSI",  6 },
 392   { "RDI",  7 },
 393   { "R8",   8 },
 394   { "R9",   9 },
 395   { "R10", 10 },
 396   { "R11", 11 },
 397   { "R12", 12 },
 398   { "R13", 13 },
 399   { "R14", 14 },
 400   { "R15", 15 }
 401 };
 402
 403 // Some additional COFF structures not defined by llvm::object.
 404 namespace {
 405   struct coff_aux_function_definition {
 406     support::ulittle32_t TagIndex;
 407     support::ulittle32_t TotalSize;
 408     support::ulittle32_t PointerToLineNumber;
 409     support::ulittle32_t PointerToNextFunction;
 410     uint8_t Unused[2];
 411   };
 412
 413   struct coff_aux_weak_external_definition {
 414     support::ulittle32_t TagIndex;
 415     support::ulittle32_t Characteristics;
 416     uint8_t Unused[10];
 417   };
 418
 419   struct coff_aux_file_record {
 420     char FileName[18];
 421   };
 422
 423   struct coff_aux_clr_token {
 424     support::ulittle8_t AuxType;
 425     support::ulittle8_t Reserved;
 426     support::ulittle32_t SymbolTableIndex;
 427     uint8_t Unused[12];
 428   };
 429 } // namespace
 430
 431 static uint64_t getOffsetOfLSDA(const Win64EH::UnwindInfo& UI) {
 432   return static_cast<const char*>(UI.getLanguageSpecificData())
 433          - reinterpret_cast<const char*>(&UI);
 434 }
 435
 436 static uint32_t getLargeSlotValue(ArrayRef<UnwindCode> UCs) {
 437   if (UCs.size() < 3)
 438     return 0;
 439
 440   return UCs[1].FrameOffset + (static_cast<uint32_t>(UCs[2].FrameOffset) << 16);
 441 }
 442
 443 template<typename T>
 444 static error_code getSymbolAuxData(const COFFObjectFile *Obj,
 445                                    const coff_symbol *Symbol, const T* &Aux) {
 446   ArrayRef<uint8_t> AuxData = Obj->getSymbolAuxData(Symbol);
 447   Aux = reinterpret_cast<const T*>(AuxData.data());
 448   return readobj_error::success;
 449 }
 450
 451 static std::string formatSymbol(const std::vector<RelocationRef> &Rels,
 452                                 uint64_t Offset, uint32_t Disp) {
 453   std::string Buffer;
 454   raw_string_ostream Str(Buffer);
 455
 456   StringRef Sym;
 457   if (resolveSymbolName(Rels, Offset, Sym)) {
 458     Str << format(" (0x%X)", Offset);
 459     return Str.str();
 460   }
 461
 462   Str << Sym;
 463   if (Disp > 0) {
 464     Str << format(" +0x%X (0x%X)", Disp, Offset);
 465   } else {
 466     Str << format(" (0x%X)", Offset);
 467   }
 468
 469   return Str.str();
 470 }
 471
 472 // Given a vector of relocations for a section and an offset into this section
 473 // the function resolves the symbol used for the relocation at the offset and
 474 // returns the section content and the address inside the content pointed to
 475 // by the symbol.
 476 error_code COFFDumper::getSectionContents(
 477     const std::vector<RelocationRef> &Rels, uint64_t Offset,
 478     ArrayRef<uint8_t> &Contents, uint64_t &Addr) {
 479
 480   SymbolRef Sym;
 481   const coff_section *Section;
 482
 483   if (error_code EC = resolveSymbol(Rels, Offset, Sym))
 484     return EC;
 485   if (error_code EC = resolveSectionAndAddress(Obj, Sym, Section, Addr))
 486     return EC;
 487   if (error_code EC = Obj->getSectionContents(Section, Contents))
 488     return EC;
 489
 490   return object_error::success;
 491 }
 492
 493 error_code COFFDumper::getSection(
 494     const std::vector<RelocationRef> &Rels, uint64_t Offset,
 495     const coff_section **SectionPtr, uint64_t *AddrPtr) {
 496
 497   SymbolRef Sym;
 498   if (error_code EC = resolveSymbol(Rels, Offset, Sym))
 499     return EC;
 500
 501   const coff_section *Section;
 502   uint64_t Addr;
 503   if (error_code EC = resolveSectionAndAddress(Obj, Sym, Section, Addr))
 504     return EC;
 505
 506   if (SectionPtr)
 507     *SectionPtr = Section;
 508   if (AddrPtr)
 509     *AddrPtr = Addr;
 510
 511   return object_error::success;
 512 }
 513
 514 void COFFDumper::cacheRelocations() {
 515   error_code EC;
 516   for (section_iterator SecI = Obj->begin_sections(),
 517                         SecE = Obj->end_sections();
 518                         SecI != SecE; SecI.increment(EC)) {
 519     if (error(EC))
 520       break;
 521
 522     const coff_section *Section = Obj->getCOFFSection(SecI);
 523
 524     for (relocation_iterator RelI = SecI->begin_relocations(),
 525                              RelE = SecI->end_relocations();
 526                              RelI != RelE; RelI.increment(EC)) {
 527       if (error(EC))
 528         break;
 529
 530       RelocMap[Section].push_back(*RelI);
 531     }
 532
 533     // Sort relocations by address.
 534     std::sort(RelocMap[Section].begin(), RelocMap[Section].end(),
 535               relocAddressLess);
 536   }
 537 }
 538
 539 void COFFDumper::printFileHeaders() {
 540   const coff_file_header *Header = 0;
 541   if (error(Obj->getHeader(Header)))
 542     return;
 543
 544   time_t TDS = Header->TimeDateStamp;
 545   char FormattedTime[20] = { };
 546   strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS));
 547
 548   {
 549     DictScope D(W, "ImageFileHeader");
 550     W.printEnum  ("Machine", Header->Machine,
 551                     makeArrayRef(ImageFileMachineType));
 552     W.printNumber("SectionCount", Header->NumberOfSections);
 553     W.printHex   ("TimeDateStamp", FormattedTime, Header->TimeDateStamp);
 554     W.printHex   ("PointerToSymbolTable", Header->PointerToSymbolTable);
 555     W.printNumber("SymbolCount", Header->NumberOfSymbols);
 556     W.printNumber("OptionalHeaderSize", Header->SizeOfOptionalHeader);
 557     W.printFlags ("Characteristics", Header->Characteristics,
 558                     makeArrayRef(ImageFileCharacteristics));
 559   }
 560 }
 561
 562 void COFFDumper::printSections() {
 563   error_code EC;
 564
 565   ListScope SectionsD(W, "Sections");
 566   int SectionNumber = 0;
 567   for (section_iterator SecI = Obj->begin_sections(),
 568                         SecE = Obj->end_sections();
 569                         SecI != SecE; SecI.increment(EC)) {
 570     if (error(EC))
 571       break;
 572
 573     ++SectionNumber;
 574     const coff_section *Section = Obj->getCOFFSection(SecI);
 575
 576     StringRef Name;
 577     if (error(SecI->getName(Name)))
 578         Name = "";
 579
 580     DictScope D(W, "Section");
 581     W.printNumber("Number", SectionNumber);
 582     W.printBinary("Name", Name, Section->Name);
 583     W.printHex   ("VirtualSize", Section->VirtualSize);
 584     W.printHex   ("VirtualAddress", Section->VirtualAddress);
 585     W.printNumber("RawDataSize", Section->SizeOfRawData);
 586     W.printHex   ("PointerToRawData", Section->PointerToRawData);
 587     W.printHex   ("PointerToRelocations", Section->PointerToRelocations);
 588     W.printHex   ("PointerToLineNumbers", Section->PointerToLinenumbers);
 589     W.printNumber("RelocationCount", Section->NumberOfRelocations);
 590     W.printNumber("LineNumberCount", Section->NumberOfLinenumbers);
 591     W.printFlags ("Characteristics", Section->Characteristics,
 592                     makeArrayRef(ImageSectionCharacteristics),
 593                     COFF::SectionCharacteristics(0x00F00000));
 594
 595     if (opts::SectionRelocations) {
 596       ListScope D(W, "Relocations");
 597       for (relocation_iterator RelI = SecI->begin_relocations(),
 598                                RelE = SecI->end_relocations();
 599                                RelI != RelE; RelI.increment(EC)) {
 600         if (error(EC)) break;
 601
 602         printRelocation(SecI, RelI);
 603       }
 604     }
 605
 606     if (opts::SectionSymbols) {
 607       ListScope D(W, "Symbols");
 608       for (symbol_iterator SymI = Obj->begin_symbols(),
 609                            SymE = Obj->end_symbols();
 610                            SymI != SymE; SymI.increment(EC)) {
 611         if (error(EC)) break;
 612
 613         bool Contained = false;
 614         if (SecI->containsSymbol(*SymI, Contained) || !Contained)
 615           continue;
 616
 617         printSymbol(SymI);
 618       }
 619     }
 620
 621     if (opts::SectionData) {
 622       StringRef Data;
 623       if (error(SecI->getContents(Data))) break;
 624
 625       W.printBinaryBlock("SectionData", Data);
 626     }
 627   }
 628 }
 629
 630 void COFFDumper::printRelocations() {
 631   ListScope D(W, "Relocations");
 632
 633   error_code EC;
 634   int SectionNumber = 0;
 635   for (section_iterator SecI = Obj->begin_sections(),
 636                         SecE = Obj->end_sections();
 637                         SecI != SecE; SecI.increment(EC)) {
 638     ++SectionNumber;
 639     if (error(EC))
 640       break;
 641
 642     StringRef Name;
 643     if (error(SecI->getName(Name)))
 644       continue;
 645
 646     bool PrintedGroup = false;
 647     for (relocation_iterator RelI = SecI->begin_relocations(),
 648                              RelE = SecI->end_relocations();
 649                              RelI != RelE; RelI.increment(EC)) {
 650       if (error(EC)) break;
 651
 652       if (!PrintedGroup) {
 653         W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
 654         W.indent();
 655         PrintedGroup = true;
 656       }
 657
 658       printRelocation(SecI, RelI);
 659     }
 660
 661     if (PrintedGroup) {
 662       W.unindent();
 663       W.startLine() << "}\n";
 664     }
 665   }
 666 }
 667
 668 void COFFDumper::printRelocation(section_iterator SecI,
 669                                  relocation_iterator RelI) {
 670   uint64_t Offset;
 671   uint64_t RelocType;
 672   SmallString<32> RelocName;
 673   SymbolRef Symbol;
 674   StringRef SymbolName;
 675   StringRef Contents;
 676   if (error(RelI->getOffset(Offset))) return;
 677   if (error(RelI->getType(RelocType))) return;
 678   if (error(RelI->getTypeName(RelocName))) return;
 679   if (error(RelI->getSymbol(Symbol))) return;
 680   if (error(Symbol.getName(SymbolName))) return;
 681   if (error(SecI->getContents(Contents))) return;
 682
 683   if (opts::ExpandRelocs) {
 684     DictScope Group(W, "Relocation");
 685     W.printHex("Offset", Offset);
 686     W.printNumber("Type", RelocName, RelocType);
 687     W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
 688   } else {
 689     raw_ostream& OS = W.startLine();
 690     OS << W.hex(Offset)
 691        << " " << RelocName
 692        << " " << (SymbolName.size() > 0 ? SymbolName : "-")
 693        << "\n";
 694   }
 695 }
 696
 697 void COFFDumper::printSymbols() {
 698   ListScope Group(W, "Symbols");
 699
 700   error_code EC;
 701   for (symbol_iterator SymI = Obj->begin_symbols(),
 702                        SymE = Obj->end_symbols();
 703                        SymI != SymE; SymI.increment(EC)) {
 704     if (error(EC)) break;
 705
 706     printSymbol(SymI);
 707   }
 708 }
 709
 710 void COFFDumper::printDynamicSymbols() {
 711   ListScope Group(W, "DynamicSymbols");
 712 }
 713
 714 void COFFDumper::printSymbol(symbol_iterator SymI) {
 715   DictScope D(W, "Symbol");
 716
 717   const coff_symbol *Symbol = Obj->getCOFFSymbol(SymI);
 718   const coff_section *Section;
 719   if (error_code EC = Obj->getSection(Symbol->SectionNumber, Section)) {
 720     W.startLine() << "Invalid section number: " << EC.message() << "\n";
 721     W.flush();
 722     return;
 723   }
 724
 725   StringRef SymbolName;
 726   if (Obj->getSymbolName(Symbol, SymbolName))
 727     SymbolName = "";
 728
 729   StringRef SectionName = "";
 730   if (Section)
 731     Obj->getSectionName(Section, SectionName);
 732
 733   W.printString("Name", SymbolName);
 734   W.printNumber("Value", Symbol->Value);
 735   W.printNumber("Section", SectionName, Symbol->SectionNumber);
 736   W.printEnum  ("BaseType", Symbol->getBaseType(), makeArrayRef(ImageSymType));
 737   W.printEnum  ("ComplexType", Symbol->getComplexType(),
 738                                                    makeArrayRef(ImageSymDType));
 739   W.printEnum  ("StorageClass", Symbol->StorageClass,
 740                                                    makeArrayRef(ImageSymClass));
 741   W.printNumber("AuxSymbolCount", Symbol->NumberOfAuxSymbols);
 742
 743   for (unsigned I = 0; I < Symbol->NumberOfAuxSymbols; ++I) {
 744     if (Symbol->StorageClass     == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
 745         Symbol->getBaseType()    == COFF::IMAGE_SYM_TYPE_NULL &&
 746         Symbol->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION &&
 747         Symbol->SectionNumber > 0) {
 748       const coff_aux_function_definition *Aux;
 749       if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
 750         break;
 751
 752       DictScope AS(W, "AuxFunctionDef");
 753       W.printNumber("TagIndex", Aux->TagIndex);
 754       W.printNumber("TotalSize", Aux->TotalSize);
 755       W.printHex("PointerToLineNumber", Aux->PointerToLineNumber);
 756       W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
 757       W.printBinary("Unused", makeArrayRef(Aux->Unused));
 758
 759     } else if (
 760         Symbol->StorageClass   == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
 761         (Symbol->StorageClass  == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
 762          Symbol->SectionNumber == 0 &&
 763          Symbol->Value         == 0)) {
 764       const coff_aux_weak_external_definition *Aux;
 765       if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
 766         break;
 767
 768       const coff_symbol *Linked;
 769       StringRef LinkedName;
 770       error_code EC;
 771       if ((EC = Obj->getSymbol(Aux->TagIndex, Linked)) ||
 772           (EC = Obj->getSymbolName(Linked, LinkedName))) {
 773         LinkedName = "";
 774         error(EC);
 775       }
 776
 777       DictScope AS(W, "AuxWeakExternal");
 778       W.printNumber("Linked", LinkedName, Aux->TagIndex);
 779       W.printEnum  ("Search", Aux->Characteristics,
 780                     makeArrayRef(WeakExternalCharacteristics));
 781       W.printBinary("Unused", Aux->Unused);
 782
 783     } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_FILE) {
 784       const coff_aux_file_record *Aux;
 785       if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
 786         break;
 787
 788       DictScope AS(W, "AuxFileRecord");
 789       W.printString("FileName", StringRef(Aux->FileName));
 790
 791     } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC ||
 792                (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
 793                 Symbol->SectionNumber != COFF::IMAGE_SYM_UNDEFINED)) {
 794       const coff_aux_section_definition *Aux;
 795       if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
 796         break;
 797
 798       DictScope AS(W, "AuxSectionDef");
 799       W.printNumber("Length", Aux->Length);
 800       W.printNumber("RelocationCount", Aux->NumberOfRelocations);
 801       W.printNumber("LineNumberCount", Aux->NumberOfLinenumbers);
 802       W.printHex("Checksum", Aux->CheckSum);
 803       W.printNumber("Number", Aux->Number);
 804       W.printEnum("Selection", Aux->Selection, makeArrayRef(ImageCOMDATSelect));
 805       W.printBinary("Unused", makeArrayRef(Aux->Unused));
 806
 807       if (Section && Section->Characteristics & COFF::IMAGE_SCN_LNK_COMDAT
 808           && Aux->Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
 809         const coff_section *Assoc;
 810         StringRef AssocName;
 811         error_code EC;
 812         if ((EC = Obj->getSection(Aux->Number, Assoc)) ||
 813             (EC = Obj->getSectionName(Assoc, AssocName))) {
 814           AssocName = "";
 815           error(EC);
 816         }
 817
 818         W.printNumber("AssocSection", AssocName, Aux->Number);
 819       }
 820     } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_CLR_TOKEN) {
 821       const coff_aux_clr_token *Aux;
 822       if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
 823         break;
 824
 825       DictScope AS(W, "AuxCLRToken");
 826       W.printNumber("AuxType", Aux->AuxType);
 827       W.printNumber("Reserved", Aux->Reserved);
 828       W.printNumber("SymbolTableIndex", Aux->SymbolTableIndex);
 829       W.printBinary("Unused", Aux->Unused);
 830
 831     } else {
 832       W.startLine() << "<unhandled auxiliary record>\n";
 833     }
 834   }
 835 }
 836
 837 void COFFDumper::printUnwindInfo() {
 838   const coff_file_header *Header;
 839   if (error(Obj->getHeader(Header)))
 840     return;
 841
 842   ListScope D(W, "UnwindInformation");
 843   if (Header->Machine != COFF::IMAGE_FILE_MACHINE_AMD64) {
 844     W.startLine() << "Unsupported image machine type "
 845               "(currently only AMD64 is supported).\n";
 846     return;
 847   }
 848
 849   printX64UnwindInfo();
 850 }
 851
 852 void COFFDumper::printX64UnwindInfo() {
 853   error_code EC;
 854   for (section_iterator SecI = Obj->begin_sections(),
 855                         SecE = Obj->end_sections();
 856                         SecI != SecE; SecI.increment(EC)) {
 857     if (error(EC)) break;
 858
 859     StringRef Name;
 860     if (error(SecI->getName(Name)))
 861       continue;
 862     if (Name != ".pdata" && !Name.startswith(".pdata$"))
 863       continue;
 864
 865     const coff_section *PData = Obj->getCOFFSection(SecI);
 866
 867     ArrayRef<uint8_t> Contents;
 868     if (error(Obj->getSectionContents(PData, Contents)) ||
 869         Contents.empty())
 870       continue;
 871
 872     ArrayRef<RuntimeFunction> RFs(
 873       reinterpret_cast<const RuntimeFunction *>(Contents.data()),
 874       Contents.size() / sizeof(RuntimeFunction));
 875
 876     for (const RuntimeFunction *I = RFs.begin(), *E = RFs.end(); I < E; ++I) {
 877       const uint64_t OffsetInSection = std::distance(RFs.begin(), I)
 878                                      * sizeof(RuntimeFunction);
 879
 880       printRuntimeFunction(*I, OffsetInSection, RelocMap[PData]);
 881     }
 882   }
 883 }
 884
 885 void COFFDumper::printRuntimeFunction(
 886     const RuntimeFunction& RTF,
 887     uint64_t OffsetInSection,
 888     const std::vector<RelocationRef> &Rels) {
 889
 890   DictScope D(W, "RuntimeFunction");
 891   W.printString("StartAddress",
 892                 formatSymbol(Rels, OffsetInSection + 0, RTF.StartAddress));
 893   W.printString("EndAddress",
 894                 formatSymbol(Rels, OffsetInSection + 4, RTF.EndAddress));
 895   W.printString("UnwindInfoAddress",
 896                 formatSymbol(Rels, OffsetInSection + 8, RTF.UnwindInfoOffset));
 897
 898   const coff_section* XData = 0;
 899   uint64_t UnwindInfoOffset = 0;
 900   if (error(getSection(Rels, OffsetInSection + 8, &XData, &UnwindInfoOffset)))
 901     return;
 902
 903   ArrayRef<uint8_t> XContents;
 904   if (error(Obj->getSectionContents(XData, XContents)) || XContents.empty())
 905     return;
 906
 907   UnwindInfoOffset += RTF.UnwindInfoOffset;
 908   if (UnwindInfoOffset > XContents.size())
 909     return;
 910
 911   const Win64EH::UnwindInfo *UI =
 912     reinterpret_cast<const Win64EH::UnwindInfo *>(
 913       XContents.data() + UnwindInfoOffset);
 914
 915   printUnwindInfo(*UI, UnwindInfoOffset, RelocMap[XData]);
 916 }
 917
 918 void COFFDumper::printUnwindInfo(
 919     const Win64EH::UnwindInfo& UI,
 920     uint64_t OffsetInSection,
 921     const std::vector<RelocationRef> &Rels) {
 922   DictScope D(W, "UnwindInfo");
 923   W.printNumber("Version", UI.getVersion());
 924   W.printFlags("Flags", UI.getFlags(), makeArrayRef(UnwindFlags));
 925   W.printNumber("PrologSize", UI.PrologSize);
 926   if (UI.getFrameRegister() != 0) {
 927     W.printEnum("FrameRegister", UI.getFrameRegister(),
 928                 makeArrayRef(UnwindOpInfo));
 929     W.printHex("FrameOffset", UI.getFrameOffset());
 930   } else {
 931     W.printString("FrameRegister", StringRef("-"));
 932     W.printString("FrameOffset", StringRef("-"));
 933   }
 934
 935   W.printNumber("UnwindCodeCount", UI.NumCodes);
 936   {
 937     ListScope CodesD(W, "UnwindCodes");
 938     ArrayRef<UnwindCode> UCs(&UI.UnwindCodes[0], UI.NumCodes);
 939     for (const UnwindCode *I = UCs.begin(), *E = UCs.end(); I < E; ++I) {
 940       unsigned UsedSlots = getNumUsedSlots(*I);
 941       if (UsedSlots > UCs.size()) {
 942         errs() << "Corrupt unwind data";
 943         return;
 944       }
 945       printUnwindCode(UI, ArrayRef<UnwindCode>(I, E));
 946       I += UsedSlots - 1;
 947     }
 948   }
 949
 950   uint64_t LSDAOffset = OffsetInSection + getOffsetOfLSDA(UI);
 951   if (UI.getFlags() & (UNW_ExceptionHandler | UNW_TerminateHandler)) {
 952     W.printString("Handler", formatSymbol(Rels, LSDAOffset,
 953                                         UI.getLanguageSpecificHandlerOffset()));
 954   } else if (UI.getFlags() & UNW_ChainInfo) {
 955     const RuntimeFunction *Chained = UI.getChainedFunctionEntry();
 956     if (Chained) {
 957       DictScope D(W, "Chained");
 958       W.printString("StartAddress", formatSymbol(Rels, LSDAOffset + 0,
 959                                                         Chained->StartAddress));
 960       W.printString("EndAddress", formatSymbol(Rels, LSDAOffset + 4,
 961                                                           Chained->EndAddress));
 962       W.printString("UnwindInfoAddress", formatSymbol(Rels, LSDAOffset + 8,
 963                                                     Chained->UnwindInfoOffset));
 964     }
 965   }
 966 }
 967
 968 // Prints one unwind code. Because an unwind code can occupy up to 3 slots in
 969 // the unwind codes array, this function requires that the correct number of
 970 // slots is provided.
 971 void COFFDumper::printUnwindCode(const Win64EH::UnwindInfo& UI,
 972                                  ArrayRef<UnwindCode> UCs) {
 973   assert(UCs.size() >= getNumUsedSlots(UCs[0]));
 974
 975   W.startLine() << format("0x%02X: ", unsigned(UCs[0].u.CodeOffset))
 976                 << getUnwindCodeTypeName(UCs[0].getUnwindOp());
 977
 978   uint32_t AllocSize = 0;
 979
 980   switch (UCs[0].getUnwindOp()) {
 981   case UOP_PushNonVol:
 982     outs() << " reg=" << getUnwindRegisterName(UCs[0].getOpInfo());
 983     break;
 984
 985   case UOP_AllocLarge:
 986     if (UCs[0].getOpInfo() == 0) {
 987       AllocSize = UCs[1].FrameOffset * 8;
 988     } else {
 989       AllocSize = getLargeSlotValue(UCs);
 990     }
 991     outs() << " size=" << AllocSize;
 992     break;
 993   case UOP_AllocSmall:
 994     outs() << " size=" << ((UCs[0].getOpInfo() + 1) * 8);
 995     break;
 996   case UOP_SetFPReg:
 997     if (UI.getFrameRegister() == 0) {
 998       outs() << " reg=<invalid>";
 999     } else {
1000       outs() << " reg=" << getUnwindRegisterName(UI.getFrameRegister())
1001              << format(", offset=0x%X", UI.getFrameOffset() * 16);
1002     }
1003     break;
1004   case UOP_SaveNonVol:
1005     outs() << " reg=" << getUnwindRegisterName(UCs[0].getOpInfo())
1006            << format(", offset=0x%X", UCs[1].FrameOffset * 8);
1007     break;
1008   case UOP_SaveNonVolBig:
1009     outs() << " reg=" << getUnwindRegisterName(UCs[0].getOpInfo())
1010            << format(", offset=0x%X", getLargeSlotValue(UCs));
1011     break;
1012   case UOP_SaveXMM128:
1013     outs() << " reg=XMM" << static_cast<uint32_t>(UCs[0].getOpInfo())
1014            << format(", offset=0x%X", UCs[1].FrameOffset * 16);
1015     break;
1016   case UOP_SaveXMM128Big:
1017     outs() << " reg=XMM" << static_cast<uint32_t>(UCs[0].getOpInfo())
1018            << format(", offset=0x%X", getLargeSlotValue(UCs));
1019     break;
1020   case UOP_PushMachFrame:
1021     outs() << " errcode=" << (UCs[0].getOpInfo() == 0 ? "no" : "yes");
1022     break;
1023   }
1024
1025   outs() << "\n";
1026 }