lld/ELF/Symbols.cpp

125     // to that routine as well as other places where we write
350 // with the same name defined in other ELF executable or DSO.
386 void Symbol::mergeProperties(const Symbol &other) {
387   if (other.exportDynamic)
391   if (!other.isShared() && other.visibility() != STV_DEFAULT) {
392     uint8_t v = visibility(), ov = other.visibility();
397 void Symbol::resolve(const Undefined &other) {
398   if (other.visibility() != STV_DEFAULT) {
399     uint8_t v = visibility(), ov = other.visibility();
407   if (isPlaceholder() || (isShared() && other.visibility() != STV_DEFAULT) ||
408       (isUndefined() && other.binding != STB_WEAK && other.discardedSecIdx)) {
409     other.overwrite(*this);
414     printTraceSymbol(other, getName());
419     if (other.binding == STB_WEAK) {
421       type = other.type;
452     // a library order that doesn't work with other Unix linkers.
459     // even if foo.a and bar.a depend on each other. With --warn-backrefs, it is
475     bool backref = config->warnBackrefs && other.file &&
476                    file->groupId < other.file->groupId;
480       recordWhyExtract(other.file, *file, *this);
492                                          std::make_pair(other.file, file));
497   if (isa_and_nonnull<SharedFile>(other.file))
504     if (other.binding != STB_WEAK || !referenced)
505       binding = other.binding;
510 bool Symbol::shouldReplace(const Defined &other) const {
514     return !other.isWeak();
525   return !isGlobal() && other.isGlobal();
570 void Symbol::checkDuplicate(const Defined &other) const {
571   if (isDefined() && !isWeak() && !other.isWeak())
572     reportDuplicate(*this, other.file,
573                     dyn_cast_or_null<InputSectionBase>(other.section),
574                     other.value);
577 void Symbol::resolve(const CommonSymbol &other) {
578   if (other.exportDynamic)
580   if (other.visibility() != STV_DEFAULT) {
581     uint8_t v = visibility(), ov = other.visibility();
593     oldSym->alignment = std::max(oldSym->alignment, other.alignment);
594     if (oldSym->size < other.size) {
595       oldSym->file = other.file;
596       oldSym->size = other.size;
607     other.overwrite(*this);
611     other.overwrite(*this);
615 void Symbol::resolve(const Defined &other) {
616   if (other.exportDynamic)
618   if (other.visibility() != STV_DEFAULT) {
619     uint8_t v = visibility(), ov = other.visibility();
622   if (shouldReplace(other))
623     other.overwrite(*this);
626 void Symbol::resolve(const LazySymbol &other) {
628     other.overwrite(*this);
635       other.file->shouldExtractForCommon(getName())) {
637     other.overwrite(*this);
638     other.extract();
653     other.overwrite(*this);
660   other.extract();
665 void Symbol::resolve(const SharedSymbol &other) {
668     other.overwrite(*this);
673     if (other.size > cast<CommonSymbol>(this)->size)
674       cast<CommonSymbol>(this)->size = other.size;
681     other.overwrite(*this);
684     printTraceSymbol(other, getName());