Store an optional section start label in MCSection.
This makes code that uses section relative expressions (debug info) simpler and
less brittle.
This is still a bit awkward as the symbol is created late and has to be
stored in a mutable field.
I will move the symbol creation earlier in the next patch.
llvm-svn: 231802
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
index ea15ab0..c700b2a 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
@@ -120,7 +120,6 @@
DwarfUnit(unsigned UID, dwarf::Tag, DICompileUnit CU, AsmPrinter *A,
DwarfDebug *DW, DwarfFile *DWU);
- void initSection(const MCSection *Section);
/// Add a string attribute data and value.
void addLocalString(DIE &Die, dwarf::Attribute Attribute, StringRef Str);
@@ -132,6 +131,8 @@
public:
virtual ~DwarfUnit();
+ void initSection(const MCSection *Section);
+
const MCSection *getSection() const {
assert(Section);
return Section;
@@ -321,7 +322,7 @@
}
/// Emit the header for this unit, not including the initial length field.
- virtual void emitHeader(const MCSymbol *ASectionSym);
+ virtual void emitHeader(bool UseOffsets);
virtual DwarfCompileUnit &getCU() = 0;
@@ -423,12 +424,11 @@
void setType(const DIE *Ty) { this->Ty = Ty; }
/// Emit the header for this unit, not including the initial length field.
- void emitHeader(const MCSymbol *ASectionSym) override;
+ void emitHeader(bool UseOffsets) override;
unsigned getHeaderSize() const override {
return DwarfUnit::getHeaderSize() + sizeof(uint64_t) + // Type Signature
sizeof(uint32_t); // Type DIE Offset
}
- using DwarfUnit::initSection;
DwarfCompileUnit &getCU() override { return CU; }
};
} // end llvm namespace