C++ (Cpp) BasicSymbolRef Examples

Example #1

File: LTOModule.cpp Project: 0xDEC0DE8/mcsema

/// Add a symbol which isn't defined just yet to a list to be resolved later.
void LTOModule::addPotentialUndefinedSymbol(const object::BasicSymbolRef &Sym,
                                            bool isFunc) {
  SmallString<64> name;
  {
    raw_svector_ostream OS(name);
    Sym.printName(OS);
  }

  StringMap<NameAndAttributes>::value_type &entry =
    _undefines.GetOrCreateValue(name);

  // we already have the symbol
  if (entry.getValue().name)
    return;

  NameAndAttributes info;

  info.name = entry.getKey().data();

  const GlobalValue *decl = IRFile->getSymbolGV(Sym.getRawDataRefImpl());

  if (decl->hasExternalWeakLinkage())
    info.attributes = LTO_SYMBOL_DEFINITION_WEAKUNDEF;
  else
    info.attributes = LTO_SYMBOL_DEFINITION_UNDEFINED;

  info.isFunction = isFunc;
  info.symbol = decl;

  entry.setValue(info);
}

Example #2

File: LTOModule.cpp Project: SDkie/llvm

/// Add a symbol which isn't defined just yet to a list to be resolved later.
void LTOModule::addPotentialUndefinedSymbol(const object::BasicSymbolRef &Sym,
                                            bool isFunc) {
  SmallString<64> name;
  {
    raw_svector_ostream OS(name);
    Sym.printName(OS);
  }

  auto IterBool = _undefines.insert(std::make_pair(name, NameAndAttributes()));

  // we already have the symbol
  if (!IterBool.second)
    return;

  NameAndAttributes &info = IterBool.first->second;

  info.name = IterBool.first->first().data();

  const GlobalValue *decl = IRFile->getSymbolGV(Sym.getRawDataRefImpl());

  if (decl->hasExternalWeakLinkage())
    info.attributes = LTO_SYMBOL_DEFINITION_WEAKUNDEF;
  else
    info.attributes = LTO_SYMBOL_DEFINITION_UNDEFINED;

  info.isFunction = isFunc;
  info.symbol = decl;
}

Example #3

File: LTOModule.cpp Project: 0xDEC0DE8/mcsema

void LTOModule::addDefinedDataSymbol(const object::BasicSymbolRef &Sym) {
  SmallString<64> Buffer;
  {
    raw_svector_ostream OS(Buffer);
    Sym.printName(OS);
  }

  const GlobalValue *V = IRFile->getSymbolGV(Sym.getRawDataRefImpl());
  addDefinedDataSymbol(Buffer.c_str(), V);
}

Example #4

File: LTOModule.cpp Project: 0xDEC0DE8/mcsema

void LTOModule::addDefinedFunctionSymbol(const object::BasicSymbolRef &Sym) {
  SmallString<64> Buffer;
  {
    raw_svector_ostream OS(Buffer);
    Sym.printName(OS);
  }

  const Function *F =
      cast<Function>(IRFile->getSymbolGV(Sym.getRawDataRefImpl()));
  addDefinedFunctionSymbol(Buffer.c_str(), F);
}

Example #5

File: ArchiveWriter.cpp Project: jamboree/llvm

static bool isArchiveSymbol(const object::BasicSymbolRef &S) {
  uint32_t Symflags = S.getFlags();
  if (Symflags & object::SymbolRef::SF_FormatSpecific)
    return false;
  if (!(Symflags & object::SymbolRef::SF_Global))
    return false;
  if (Symflags & object::SymbolRef::SF_Undefined)
    return false;
  return true;
}