/// parseDirectiveIndirectSymbol
/// ::= .indirect_symbol identifier
bool DarwinAsmParser::parseDirectiveIndirectSymbol(StringRef, SMLoc Loc) {
const MCSectionMachO *Current = static_cast<const MCSectionMachO*>(
getStreamer().getCurrentSection().first);
MachO::SectionType SectionType = Current->getType();
if (SectionType != MachO::S_NON_LAZY_SYMBOL_POINTERS &&
SectionType != MachO::S_LAZY_SYMBOL_POINTERS &&
SectionType != MachO::S_SYMBOL_STUBS)
return Error(Loc, "indirect symbol not in a symbol pointer or stub "
"section");
StringRef Name;
if (getParser().parseIdentifier(Name))
return TokError("expected identifier in .indirect_symbol directive");
MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
// Assembler local symbols don't make any sense here. Complain loudly.
if (Sym->isTemporary())
return TokError("non-local symbol required in directive");
if (!getStreamer().EmitSymbolAttribute(Sym, MCSA_IndirectSymbol))
return TokError("unable to emit indirect symbol attribute for: " + Name);
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in '.indirect_symbol' directive");
Lex();
return false;
}
bool MCAssembler::isSymbolLinkerVisible(const MCSymbol &Symbol) const {
// Non-temporary labels should always be visible to the linker.
if (!Symbol.isTemporary())
return true;
// Absolute temporary labels are never visible.
if (!Symbol.isInSection())
return false;
// Otherwise, check if the section requires symbols even for temporary labels.
return getBackend().doesSectionRequireSymbols(Symbol.getSection());
}
bool MCAssembler::isSymbolLinkerVisible(const MCSymbol &Symbol) const {
// Non-temporary labels should always be visible to the linker.
if (!Symbol.isTemporary())
return true;
// Absolute temporary labels are never visible.
if (!Symbol.isInSection())
return false;
if (Symbol.isUsedInReloc())
return true;
return false;
}
bool MCAssembler::isLocalUsedInReloc(const MCSymbol &Sym) const {
assert(Sym.isTemporary());
return LocalsUsedInReloc.count(&Sym);
}
void MCAssembler::addLocalUsedInReloc(const MCSymbol &Sym) {
assert(Sym.isTemporary());
LocalsUsedInReloc.insert(&Sym);
}
