LTO_SYMBOL_DEFINITION_TENTATIVE = 0x00000200,
LTO_SYMBOL_DEFINITION_WEAK = 0x00000300,
LTO_SYMBOL_DEFINITION_UNDEFINED = 0x00000400,
+ LTO_SYMBOL_DEFINITION_WEAKUNDEF = 0x00000500,
LTO_SYMBOL_SCOPE_MASK = 0x00003800,
LTO_SYMBOL_SCOPE_INTERNAL = 0x00000800,
LTO_SYMBOL_SCOPE_HIDDEN = 0x00001000,
{
const char* name = mangler.getValueName(decl).c_str();
// ignore all llvm.* symbols
- if ( strncmp(name, "llvm.", 5) != 0 ) {
- _undefines[name] = 1;
- }
+ if ( strncmp(name, "llvm.", 5) == 0 )
+ return;
+
+ // we already have the symbol
+ if (_undefines.find(name) != _undefines.end())
+ return;
+
+ NameAndAttributes info;
+ // string is owned by _undefines
+ info.name = ::strdup(name);
+ if (decl->hasExternalWeakLinkage())
+ info.attributes = LTO_SYMBOL_DEFINITION_WEAKUNDEF;
+ else
+ info.attributes = LTO_SYMBOL_DEFINITION_UNDEFINED;
+ _undefines[name] = info;
}
}
// make symbols for all undefines
- for (StringSet::iterator it=_undefines.begin();
+ for (StringMap<NameAndAttributes>::iterator it=_undefines.begin();
it != _undefines.end(); ++it) {
// if this symbol also has a definition, then don't make an undefine
// because it is a tentative definition
if ( _defines.count(it->getKeyData(), it->getKeyData()+
it->getKeyLength()) == 0 ) {
- NameAndAttributes info;
- info.name = it->getKeyData();
- info.attributes = LTO_SYMBOL_DEFINITION_UNDEFINED;
- _symbols.push_back(info);
+ NameAndAttributes info = it->getValue();
+ _symbols.push_back(info);
}
}
}