// should be printed before the section name
bool MCSectionCOFF::ShouldOmitSectionDirective(StringRef Name,
const MCAsmInfo &MAI) const {
-
+
// FIXME: Does .section .bss/.data/.text work everywhere??
if (Name == ".text" || Name == ".data" || Name == ".bss")
return true;
return false;
}
+void MCSectionCOFF::setSelection(int Selection,
+ const MCSectionCOFF *Assoc) const {
+ assert(Selection != 0 && "invalid COMDAT selection type");
+ assert((Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) ==
+ (Assoc != 0) &&
+ "associative COMDAT section must have an associated section");
+ this->Selection = Selection;
+ this->Assoc = Assoc;
+ Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
+}
+
void MCSectionCOFF::PrintSwitchToSection(const MCAsmInfo &MAI,
- raw_ostream &OS) const {
-
+ raw_ostream &OS,
+ const MCExpr *Subsection) const {
+
// standard sections don't require the '.section'
if (ShouldOmitSectionDirective(SectionName, MAI)) {
OS << '\t' << getSectionName() << '\n';
if (getCharacteristics() & COFF::IMAGE_SCN_MEM_DISCARDABLE)
OS << 'n';
OS << "\"\n";
-
+
if (getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT) {
switch (Selection) {
case COFF::IMAGE_COMDAT_SELECT_NODUPLICATES:
case COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH:
OS << "\t.linkonce same_contents\n";
break;
- //NOTE: as of binutils 2.20, there is no way to specifiy select largest
- // with the .linkonce directive. For now, we treat it as an invalid
- // comdat selection value.
+ case COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE:
+ OS << "\t.linkonce associative " << Assoc->getSectionName() << "\n";
+ break;
case COFF::IMAGE_COMDAT_SELECT_LARGEST:
- // OS << "\t.linkonce largest\n";
- // break;
+ OS << "\t.linkonce largest\n";
+ break;
+ case COFF::IMAGE_COMDAT_SELECT_NEWEST:
+ OS << "\t.linkonce newest\n";
+ break;
default:
assert (0 && "unsupported COFF selection type");
break;