: SrcMgr(mgr), MAI(mai), MRI(mri), MOFI(mofi), Allocator(),
Symbols(Allocator), UsedNames(Allocator), NextUniqueID(0),
CurrentDwarfLoc(0, 0, 0, DWARF2_FLAG_IS_STMT, 0, 0), DwarfLocSeen(false),
- GenDwarfForAssembly(false), GenDwarfFileNumber(0),
+ GenDwarfForAssembly(false), GenDwarfFileNumber(0), DwarfVersion(4),
AllowTemporaryLabels(true), DwarfCompileUnitID(0),
AutoReset(DoAutoReset) {
- error_code EC = llvm::sys::fs::current_path(CompilationDir);
+ std::error_code EC = llvm::sys::fs::current_path(CompilationDir);
if (EC)
CompilationDir.clear();
return Result;
}
-const MCSectionCOFF *
-MCContext::getCOFFSection(StringRef Section, unsigned Characteristics,
- SectionKind Kind, StringRef COMDATSymName,
- int Selection, const MCSectionCOFF *Assoc) {
+const MCSectionCOFF *MCContext::getCOFFSection(StringRef Section,
+ unsigned Characteristics,
+ SectionKind Kind,
+ StringRef COMDATSymName,
+ int Selection) {
// Do the lookup, if we have a hit, return it.
SectionGroupPair P(Section, COMDATSymName);
COMDATSymbol = GetOrCreateSymbol(COMDATSymName);
StringRef CachedName = Iter->first.first;
- MCSectionCOFF *Result = new (*this) MCSectionCOFF(
- CachedName, Characteristics, COMDATSymbol, Selection, Assoc, Kind);
+ MCSectionCOFF *Result = new (*this)
+ MCSectionCOFF(CachedName, Characteristics, COMDATSymbol, Selection, Kind);
Iter->second = Result;
return Result;
return !MCDwarfFiles[FileNumber].Name.empty();
}
+/// finalizeDwarfSections - Emit end symbols for each non-empty code section.
+/// Also remove empty sections from SectionStartEndSyms, to avoid generating
+/// useless debug info for them.
+void MCContext::finalizeDwarfSections(MCStreamer &MCOS) {
+ MCContext &context = MCOS.getContext();
+
+ auto sec = SectionStartEndSyms.begin();
+ while (sec != SectionStartEndSyms.end()) {
+ assert(sec->second.first && "Start symbol must be set by now");
+ MCOS.SwitchSection(sec->first);
+ if (MCOS.mayHaveInstructions()) {
+ MCSymbol *SectionEndSym = context.CreateTempSymbol();
+ MCOS.EmitLabel(SectionEndSym);
+ sec->second.second = SectionEndSym;
+ ++sec;
+ } else {
+ MapVector<const MCSection *, std::pair<MCSymbol *, MCSymbol *> >::iterator
+ to_erase = sec;
+ sec = SectionStartEndSyms.erase(to_erase);
+ }
+ }
+}
+
void MCContext::FatalError(SMLoc Loc, const Twine &Msg) const {
// If we have a source manager and a location, use it. Otherwise just
// use the generic report_fatal_error().