[DWARFv5] Emit new unit header format.
Requesting DWARF v5 will now get you the new compile-unit and
type-unit headers. llvm-dwarfdump will also recognize them.
Differential Revision: http://reviews.llvm.org/D30206
llvm-svn: 296514
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
index 89e654b..a48b976 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
@@ -279,11 +279,13 @@
virtual unsigned getHeaderSize() const {
return sizeof(int16_t) + // DWARF version number
sizeof(int32_t) + // Offset Into Abbrev. Section
- sizeof(int8_t); // Pointer Size (in bytes)
+ sizeof(int8_t) + // Pointer Size (in bytes)
+ (DD->getDwarfVersion() >= 5 ? sizeof(int8_t)
+ : 0); // DWARF v5 unit type
}
/// Emit the header for this unit, not including the initial length field.
- virtual void emitHeader(bool UseOffsets);
+ virtual void emitHeader(bool UseOffsets) = 0;
virtual DwarfCompileUnit &getCU() = 0;
@@ -308,6 +310,9 @@
void updateAcceleratorTables(const DIScope *Context, const DIType *Ty,
const DIE &TyDIE);
+ /// Emit the common part of the header for this unit.
+ void emitCommonHeader(bool UseOffsets, dwarf::UnitType UT);
+
private:
void constructTypeDIE(DIE &Buffer, const DIBasicType *BTy);
void constructTypeDIE(DIE &Buffer, const DIDerivedType *DTy);