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