/// 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);
}
/// 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;
}
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);
}
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);
}
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;
}