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      1 //===- ObjectFile.h - File format independent object file -------*- 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 // This file declares a file format independent ObjectFile class.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_OBJECT_OBJECTFILE_H
     15 #define LLVM_OBJECT_OBJECTFILE_H
     16 
     17 #include "llvm/ADT/StringRef.h"
     18 #include "llvm/Object/Binary.h"
     19 #include "llvm/Support/DataTypes.h"
     20 #include "llvm/Support/ErrorHandling.h"
     21 #include "llvm/Support/MemoryBuffer.h"
     22 #include <cstring>
     23 #include <vector>
     24 
     25 namespace llvm {
     26 namespace object {
     27 
     28 class ObjectFile;
     29 
     30 union DataRefImpl {
     31   // This entire union should probably be a
     32   // char[max(8, sizeof(uintptr_t))] and require the impl to cast.
     33   struct {
     34     uint32_t a, b;
     35   } d;
     36   uintptr_t p;
     37   DataRefImpl() {
     38     std::memset(this, 0, sizeof(DataRefImpl));
     39   }
     40 };
     41 
     42 template<class content_type>
     43 class content_iterator {
     44   content_type Current;
     45 public:
     46   content_iterator(content_type symb)
     47     : Current(symb) {}
     48 
     49   const content_type* operator->() const {
     50     return &Current;
     51   }
     52 
     53   const content_type &operator*() const {
     54     return Current;
     55   }
     56 
     57   bool operator==(const content_iterator &other) const {
     58     return Current == other.Current;
     59   }
     60 
     61   bool operator!=(const content_iterator &other) const {
     62     return !(*this == other);
     63   }
     64 
     65   content_iterator& increment(error_code &err) {
     66     content_type next;
     67     if (error_code ec = Current.getNext(next))
     68       err = ec;
     69     else
     70       Current = next;
     71     return *this;
     72   }
     73 };
     74 
     75 inline bool operator==(const DataRefImpl &a, const DataRefImpl &b) {
     76   // Check bitwise identical. This is the only legal way to compare a union w/o
     77   // knowing which member is in use.
     78   return std::memcmp(&a, &b, sizeof(DataRefImpl)) == 0;
     79 }
     80 
     81 inline bool operator<(const DataRefImpl &a, const DataRefImpl &b) {
     82   // Check bitwise identical. This is the only legal way to compare a union w/o
     83   // knowing which member is in use.
     84   return std::memcmp(&a, &b, sizeof(DataRefImpl)) < 0;
     85 }
     86 
     87 class SymbolRef;
     88 typedef content_iterator<SymbolRef> symbol_iterator;
     89 
     90 /// RelocationRef - This is a value type class that represents a single
     91 /// relocation in the list of relocations in the object file.
     92 class RelocationRef {
     93   DataRefImpl RelocationPimpl;
     94   const ObjectFile *OwningObject;
     95 
     96 public:
     97   RelocationRef() : OwningObject(NULL) { }
     98 
     99   RelocationRef(DataRefImpl RelocationP, const ObjectFile *Owner);
    100 
    101   bool operator==(const RelocationRef &Other) const;
    102 
    103   error_code getNext(RelocationRef &Result) const;
    104 
    105   error_code getAddress(uint64_t &Result) const;
    106   error_code getOffset(uint64_t &Result) const;
    107   symbol_iterator getSymbol() const;
    108   error_code getType(uint64_t &Result) const;
    109 
    110   /// @brief Indicates whether this relocation should hidden when listing
    111   /// relocations, usually because it is the trailing part of a multipart
    112   /// relocation that will be printed as part of the leading relocation.
    113   error_code getHidden(bool &Result) const;
    114 
    115   /// @brief Get a string that represents the type of this relocation.
    116   ///
    117   /// This is for display purposes only.
    118   error_code getTypeName(SmallVectorImpl<char> &Result) const;
    119 
    120   /// @brief Get a string that represents the calculation of the value of this
    121   ///        relocation.
    122   ///
    123   /// This is for display purposes only.
    124   error_code getValueString(SmallVectorImpl<char> &Result) const;
    125 
    126   DataRefImpl getRawDataRefImpl() const;
    127   const ObjectFile *getObjectFile() const;
    128 };
    129 typedef content_iterator<RelocationRef> relocation_iterator;
    130 
    131 /// SectionRef - This is a value type class that represents a single section in
    132 /// the list of sections in the object file.
    133 class SectionRef;
    134 typedef content_iterator<SectionRef> section_iterator;
    135 class SectionRef {
    136   friend class SymbolRef;
    137   DataRefImpl SectionPimpl;
    138   const ObjectFile *OwningObject;
    139 
    140 public:
    141   SectionRef() : OwningObject(NULL) { }
    142 
    143   SectionRef(DataRefImpl SectionP, const ObjectFile *Owner);
    144 
    145   bool operator==(const SectionRef &Other) const;
    146   bool operator<(const SectionRef &Other) const;
    147 
    148   error_code getNext(SectionRef &Result) const;
    149 
    150   error_code getName(StringRef &Result) const;
    151   error_code getAddress(uint64_t &Result) const;
    152   error_code getSize(uint64_t &Result) const;
    153   error_code getContents(StringRef &Result) const;
    154 
    155   /// @brief Get the alignment of this section as the actual value (not log 2).
    156   error_code getAlignment(uint64_t &Result) const;
    157 
    158   // FIXME: Move to the normalization layer when it's created.
    159   error_code isText(bool &Result) const;
    160   error_code isData(bool &Result) const;
    161   error_code isBSS(bool &Result) const;
    162   error_code isRequiredForExecution(bool &Result) const;
    163   error_code isVirtual(bool &Result) const;
    164   error_code isZeroInit(bool &Result) const;
    165   error_code isReadOnlyData(bool &Result) const;
    166 
    167   error_code containsSymbol(SymbolRef S, bool &Result) const;
    168 
    169   relocation_iterator begin_relocations() const;
    170   relocation_iterator end_relocations() const;
    171   section_iterator getRelocatedSection() const;
    172 
    173   DataRefImpl getRawDataRefImpl() const;
    174 };
    175 
    176 /// SymbolRef - This is a value type class that represents a single symbol in
    177 /// the list of symbols in the object file.
    178 class SymbolRef {
    179   friend class SectionRef;
    180   DataRefImpl SymbolPimpl;
    181   const ObjectFile *OwningObject;
    182 
    183 public:
    184   SymbolRef() : OwningObject(NULL) { }
    185 
    186   enum Type {
    187     ST_Unknown, // Type not specified
    188     ST_Data,
    189     ST_Debug,
    190     ST_File,
    191     ST_Function,
    192     ST_Other
    193   };
    194 
    195   enum Flags {
    196     SF_None            = 0,
    197     SF_Undefined       = 1U << 0,  // Symbol is defined in another object file
    198     SF_Global          = 1U << 1,  // Global symbol
    199     SF_Weak            = 1U << 2,  // Weak symbol
    200     SF_Absolute        = 1U << 3,  // Absolute symbol
    201     SF_ThreadLocal     = 1U << 4,  // Thread local symbol
    202     SF_Common          = 1U << 5,  // Symbol has common linkage
    203     SF_FormatSpecific  = 1U << 31  // Specific to the object file format
    204                                    // (e.g. section symbols)
    205   };
    206 
    207   SymbolRef(DataRefImpl SymbolP, const ObjectFile *Owner);
    208 
    209   bool operator==(const SymbolRef &Other) const;
    210   bool operator<(const SymbolRef &Other) const;
    211 
    212   error_code getNext(SymbolRef &Result) const;
    213 
    214   error_code getName(StringRef &Result) const;
    215   /// Returns the symbol virtual address (i.e. address at which it will be
    216   /// mapped).
    217   error_code getAddress(uint64_t &Result) const;
    218   error_code getFileOffset(uint64_t &Result) const;
    219   /// @brief Get the alignment of this symbol as the actual value (not log 2).
    220   error_code getAlignment(uint32_t &Result) const;
    221   error_code getSize(uint64_t &Result) const;
    222   error_code getType(SymbolRef::Type &Result) const;
    223 
    224   /// Returns the ascii char that should be displayed in a symbol table dump via
    225   /// nm for this symbol.
    226   error_code getNMTypeChar(char &Result) const;
    227 
    228   /// Get symbol flags (bitwise OR of SymbolRef::Flags)
    229   error_code getFlags(uint32_t &Result) const;
    230 
    231   /// @brief Get section this symbol is defined in reference to. Result is
    232   /// end_sections() if it is undefined or is an absolute symbol.
    233   error_code getSection(section_iterator &Result) const;
    234 
    235   /// @brief Get value of the symbol in the symbol table.
    236   error_code getValue(uint64_t &Val) const;
    237 
    238   DataRefImpl getRawDataRefImpl() const;
    239 };
    240 
    241 /// LibraryRef - This is a value type class that represents a single library in
    242 /// the list of libraries needed by a shared or dynamic object.
    243 class LibraryRef {
    244   friend class SectionRef;
    245   DataRefImpl LibraryPimpl;
    246   const ObjectFile *OwningObject;
    247 
    248 public:
    249   LibraryRef() : OwningObject(NULL) { }
    250 
    251   LibraryRef(DataRefImpl LibraryP, const ObjectFile *Owner);
    252 
    253   bool operator==(const LibraryRef &Other) const;
    254   bool operator<(const LibraryRef &Other) const;
    255 
    256   error_code getNext(LibraryRef &Result) const;
    257 
    258   // Get the path to this library, as stored in the object file.
    259   error_code getPath(StringRef &Result) const;
    260 
    261   DataRefImpl getRawDataRefImpl() const;
    262 };
    263 typedef content_iterator<LibraryRef> library_iterator;
    264 
    265 const uint64_t UnknownAddressOrSize = ~0ULL;
    266 
    267 /// ObjectFile - This class is the base class for all object file types.
    268 /// Concrete instances of this object are created by createObjectFile, which
    269 /// figures out which type to create.
    270 class ObjectFile : public Binary {
    271   virtual void anchor();
    272   ObjectFile() LLVM_DELETED_FUNCTION;
    273   ObjectFile(const ObjectFile &other) LLVM_DELETED_FUNCTION;
    274 
    275 protected:
    276   ObjectFile(unsigned int Type, MemoryBuffer *source);
    277 
    278   const uint8_t *base() const {
    279     return reinterpret_cast<const uint8_t *>(Data->getBufferStart());
    280   }
    281 
    282   // These functions are for SymbolRef to call internally. The main goal of
    283   // this is to allow SymbolRef::SymbolPimpl to point directly to the symbol
    284   // entry in the memory mapped object file. SymbolPimpl cannot contain any
    285   // virtual functions because then it could not point into the memory mapped
    286   // file.
    287   //
    288   // Implementations assume that the DataRefImpl is valid and has not been
    289   // modified externally. It's UB otherwise.
    290   friend class SymbolRef;
    291   virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const = 0;
    292   virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const = 0;
    293   virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const = 0;
    294   virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res)const=0;
    295   virtual error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const;
    296   virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const = 0;
    297   virtual error_code getSymbolType(DataRefImpl Symb,
    298                                    SymbolRef::Type &Res) const = 0;
    299   virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const = 0;
    300   virtual error_code getSymbolFlags(DataRefImpl Symb,
    301                                     uint32_t &Res) const = 0;
    302   virtual error_code getSymbolSection(DataRefImpl Symb,
    303                                       section_iterator &Res) const = 0;
    304   virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const = 0;
    305 
    306   // Same as above for SectionRef.
    307   friend class SectionRef;
    308   virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const = 0;
    309   virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const = 0;
    310   virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const =0;
    311   virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const = 0;
    312   virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res)const=0;
    313   virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res)const=0;
    314   virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const = 0;
    315   virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const = 0;
    316   virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const = 0;
    317   virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
    318                                                    bool &Res) const = 0;
    319   // A section is 'virtual' if its contents aren't present in the object image.
    320   virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const = 0;
    321   virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const = 0;
    322   virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const =0;
    323   virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
    324                                            bool &Result) const = 0;
    325   virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const = 0;
    326   virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const = 0;
    327   virtual section_iterator getRelocatedSection(DataRefImpl Sec) const;
    328 
    329   // Same as above for RelocationRef.
    330   friend class RelocationRef;
    331   virtual error_code getRelocationNext(DataRefImpl Rel,
    332                                        RelocationRef &Res) const = 0;
    333   virtual error_code getRelocationAddress(DataRefImpl Rel,
    334                                           uint64_t &Res) const =0;
    335   virtual error_code getRelocationOffset(DataRefImpl Rel,
    336                                          uint64_t &Res) const =0;
    337   virtual symbol_iterator getRelocationSymbol(DataRefImpl Rel) const = 0;
    338   virtual error_code getRelocationType(DataRefImpl Rel,
    339                                        uint64_t &Res) const = 0;
    340   virtual error_code getRelocationTypeName(DataRefImpl Rel,
    341                                        SmallVectorImpl<char> &Result) const = 0;
    342   virtual error_code getRelocationValueString(DataRefImpl Rel,
    343                                        SmallVectorImpl<char> &Result) const = 0;
    344   virtual error_code getRelocationHidden(DataRefImpl Rel, bool &Result) const {
    345     Result = false;
    346     return object_error::success;
    347   }
    348 
    349   // Same for LibraryRef
    350   friend class LibraryRef;
    351   virtual error_code getLibraryNext(DataRefImpl Lib, LibraryRef &Res) const = 0;
    352   virtual error_code getLibraryPath(DataRefImpl Lib, StringRef &Res) const = 0;
    353 
    354 public:
    355 
    356   virtual symbol_iterator begin_symbols() const = 0;
    357   virtual symbol_iterator end_symbols() const = 0;
    358 
    359   virtual symbol_iterator begin_dynamic_symbols() const = 0;
    360   virtual symbol_iterator end_dynamic_symbols() const = 0;
    361 
    362   virtual section_iterator begin_sections() const = 0;
    363   virtual section_iterator end_sections() const = 0;
    364 
    365   virtual library_iterator begin_libraries_needed() const = 0;
    366   virtual library_iterator end_libraries_needed() const = 0;
    367 
    368   /// @brief The number of bytes used to represent an address in this object
    369   ///        file format.
    370   virtual uint8_t getBytesInAddress() const = 0;
    371 
    372   virtual StringRef getFileFormatName() const = 0;
    373   virtual /* Triple::ArchType */ unsigned getArch() const = 0;
    374 
    375   /// For shared objects, returns the name which this object should be
    376   /// loaded from at runtime. This corresponds to DT_SONAME on ELF and
    377   /// LC_ID_DYLIB (install name) on MachO.
    378   virtual StringRef getLoadName() const = 0;
    379 
    380   /// @returns Pointer to ObjectFile subclass to handle this type of object.
    381   /// @param ObjectPath The path to the object file. ObjectPath.isObject must
    382   ///        return true.
    383   /// @brief Create ObjectFile from path.
    384   static ObjectFile *createObjectFile(StringRef ObjectPath);
    385   static ObjectFile *createObjectFile(MemoryBuffer *Object);
    386 
    387   static inline bool classof(const Binary *v) {
    388     return v->isObject();
    389   }
    390 
    391 public:
    392   static ObjectFile *createCOFFObjectFile(MemoryBuffer *Object);
    393   static ObjectFile *createELFObjectFile(MemoryBuffer *Object);
    394   static ObjectFile *createMachOObjectFile(MemoryBuffer *Object);
    395 };
    396 
    397 // Inline function definitions.
    398 inline SymbolRef::SymbolRef(DataRefImpl SymbolP, const ObjectFile *Owner)
    399   : SymbolPimpl(SymbolP)
    400   , OwningObject(Owner) {}
    401 
    402 inline bool SymbolRef::operator==(const SymbolRef &Other) const {
    403   return SymbolPimpl == Other.SymbolPimpl;
    404 }
    405 
    406 inline bool SymbolRef::operator<(const SymbolRef &Other) const {
    407   return SymbolPimpl < Other.SymbolPimpl;
    408 }
    409 
    410 inline error_code SymbolRef::getNext(SymbolRef &Result) const {
    411   return OwningObject->getSymbolNext(SymbolPimpl, Result);
    412 }
    413 
    414 inline error_code SymbolRef::getName(StringRef &Result) const {
    415   return OwningObject->getSymbolName(SymbolPimpl, Result);
    416 }
    417 
    418 inline error_code SymbolRef::getAddress(uint64_t &Result) const {
    419   return OwningObject->getSymbolAddress(SymbolPimpl, Result);
    420 }
    421 
    422 inline error_code SymbolRef::getFileOffset(uint64_t &Result) const {
    423   return OwningObject->getSymbolFileOffset(SymbolPimpl, Result);
    424 }
    425 
    426 inline error_code SymbolRef::getAlignment(uint32_t &Result) const {
    427   return OwningObject->getSymbolAlignment(SymbolPimpl, Result);
    428 }
    429 
    430 inline error_code SymbolRef::getSize(uint64_t &Result) const {
    431   return OwningObject->getSymbolSize(SymbolPimpl, Result);
    432 }
    433 
    434 inline error_code SymbolRef::getNMTypeChar(char &Result) const {
    435   return OwningObject->getSymbolNMTypeChar(SymbolPimpl, Result);
    436 }
    437 
    438 inline error_code SymbolRef::getFlags(uint32_t &Result) const {
    439   return OwningObject->getSymbolFlags(SymbolPimpl, Result);
    440 }
    441 
    442 inline error_code SymbolRef::getSection(section_iterator &Result) const {
    443   return OwningObject->getSymbolSection(SymbolPimpl, Result);
    444 }
    445 
    446 inline error_code SymbolRef::getType(SymbolRef::Type &Result) const {
    447   return OwningObject->getSymbolType(SymbolPimpl, Result);
    448 }
    449 
    450 inline error_code SymbolRef::getValue(uint64_t &Val) const {
    451   return OwningObject->getSymbolValue(SymbolPimpl, Val);
    452 }
    453 
    454 inline DataRefImpl SymbolRef::getRawDataRefImpl() const {
    455   return SymbolPimpl;
    456 }
    457 
    458 
    459 /// SectionRef
    460 inline SectionRef::SectionRef(DataRefImpl SectionP,
    461                               const ObjectFile *Owner)
    462   : SectionPimpl(SectionP)
    463   , OwningObject(Owner) {}
    464 
    465 inline bool SectionRef::operator==(const SectionRef &Other) const {
    466   return SectionPimpl == Other.SectionPimpl;
    467 }
    468 
    469 inline bool SectionRef::operator<(const SectionRef &Other) const {
    470   return SectionPimpl < Other.SectionPimpl;
    471 }
    472 
    473 inline error_code SectionRef::getNext(SectionRef &Result) const {
    474   return OwningObject->getSectionNext(SectionPimpl, Result);
    475 }
    476 
    477 inline error_code SectionRef::getName(StringRef &Result) const {
    478   return OwningObject->getSectionName(SectionPimpl, Result);
    479 }
    480 
    481 inline error_code SectionRef::getAddress(uint64_t &Result) const {
    482   return OwningObject->getSectionAddress(SectionPimpl, Result);
    483 }
    484 
    485 inline error_code SectionRef::getSize(uint64_t &Result) const {
    486   return OwningObject->getSectionSize(SectionPimpl, Result);
    487 }
    488 
    489 inline error_code SectionRef::getContents(StringRef &Result) const {
    490   return OwningObject->getSectionContents(SectionPimpl, Result);
    491 }
    492 
    493 inline error_code SectionRef::getAlignment(uint64_t &Result) const {
    494   return OwningObject->getSectionAlignment(SectionPimpl, Result);
    495 }
    496 
    497 inline error_code SectionRef::isText(bool &Result) const {
    498   return OwningObject->isSectionText(SectionPimpl, Result);
    499 }
    500 
    501 inline error_code SectionRef::isData(bool &Result) const {
    502   return OwningObject->isSectionData(SectionPimpl, Result);
    503 }
    504 
    505 inline error_code SectionRef::isBSS(bool &Result) const {
    506   return OwningObject->isSectionBSS(SectionPimpl, Result);
    507 }
    508 
    509 inline error_code SectionRef::isRequiredForExecution(bool &Result) const {
    510   return OwningObject->isSectionRequiredForExecution(SectionPimpl, Result);
    511 }
    512 
    513 inline error_code SectionRef::isVirtual(bool &Result) const {
    514   return OwningObject->isSectionVirtual(SectionPimpl, Result);
    515 }
    516 
    517 inline error_code SectionRef::isZeroInit(bool &Result) const {
    518   return OwningObject->isSectionZeroInit(SectionPimpl, Result);
    519 }
    520 
    521 inline error_code SectionRef::isReadOnlyData(bool &Result) const {
    522   return OwningObject->isSectionReadOnlyData(SectionPimpl, Result);
    523 }
    524 
    525 inline error_code SectionRef::containsSymbol(SymbolRef S, bool &Result) const {
    526   return OwningObject->sectionContainsSymbol(SectionPimpl, S.SymbolPimpl,
    527                                              Result);
    528 }
    529 
    530 inline relocation_iterator SectionRef::begin_relocations() const {
    531   return OwningObject->getSectionRelBegin(SectionPimpl);
    532 }
    533 
    534 inline relocation_iterator SectionRef::end_relocations() const {
    535   return OwningObject->getSectionRelEnd(SectionPimpl);
    536 }
    537 
    538 inline section_iterator SectionRef::getRelocatedSection() const {
    539   return OwningObject->getRelocatedSection(SectionPimpl);
    540 }
    541 
    542 inline DataRefImpl SectionRef::getRawDataRefImpl() const {
    543   return SectionPimpl;
    544 }
    545 
    546 /// RelocationRef
    547 inline RelocationRef::RelocationRef(DataRefImpl RelocationP,
    548                               const ObjectFile *Owner)
    549   : RelocationPimpl(RelocationP)
    550   , OwningObject(Owner) {}
    551 
    552 inline bool RelocationRef::operator==(const RelocationRef &Other) const {
    553   return RelocationPimpl == Other.RelocationPimpl;
    554 }
    555 
    556 inline error_code RelocationRef::getNext(RelocationRef &Result) const {
    557   return OwningObject->getRelocationNext(RelocationPimpl, Result);
    558 }
    559 
    560 inline error_code RelocationRef::getAddress(uint64_t &Result) const {
    561   return OwningObject->getRelocationAddress(RelocationPimpl, Result);
    562 }
    563 
    564 inline error_code RelocationRef::getOffset(uint64_t &Result) const {
    565   return OwningObject->getRelocationOffset(RelocationPimpl, Result);
    566 }
    567 
    568 inline symbol_iterator RelocationRef::getSymbol() const {
    569   return OwningObject->getRelocationSymbol(RelocationPimpl);
    570 }
    571 
    572 inline error_code RelocationRef::getType(uint64_t &Result) const {
    573   return OwningObject->getRelocationType(RelocationPimpl, Result);
    574 }
    575 
    576 inline error_code RelocationRef::getTypeName(SmallVectorImpl<char> &Result)
    577   const {
    578   return OwningObject->getRelocationTypeName(RelocationPimpl, Result);
    579 }
    580 
    581 inline error_code RelocationRef::getValueString(SmallVectorImpl<char> &Result)
    582   const {
    583   return OwningObject->getRelocationValueString(RelocationPimpl, Result);
    584 }
    585 
    586 inline error_code RelocationRef::getHidden(bool &Result) const {
    587   return OwningObject->getRelocationHidden(RelocationPimpl, Result);
    588 }
    589 
    590 inline DataRefImpl RelocationRef::getRawDataRefImpl() const {
    591   return RelocationPimpl;
    592 }
    593 
    594 inline const ObjectFile *RelocationRef::getObjectFile() const {
    595   return OwningObject;
    596 }
    597 
    598 // Inline function definitions.
    599 inline LibraryRef::LibraryRef(DataRefImpl LibraryP, const ObjectFile *Owner)
    600   : LibraryPimpl(LibraryP)
    601   , OwningObject(Owner) {}
    602 
    603 inline bool LibraryRef::operator==(const LibraryRef &Other) const {
    604   return LibraryPimpl == Other.LibraryPimpl;
    605 }
    606 
    607 inline bool LibraryRef::operator<(const LibraryRef &Other) const {
    608   return LibraryPimpl < Other.LibraryPimpl;
    609 }
    610 
    611 inline error_code LibraryRef::getNext(LibraryRef &Result) const {
    612   return OwningObject->getLibraryNext(LibraryPimpl, Result);
    613 }
    614 
    615 inline error_code LibraryRef::getPath(StringRef &Result) const {
    616   return OwningObject->getLibraryPath(LibraryPimpl, Result);
    617 }
    618 
    619 } // end namespace object
    620 } // end namespace llvm
    621 
    622 #endif
    623