+ // Handle the rest of the Compile Units.
+ for (const auto &CUIDTablePair : LineTables)
+ CUIDTablePair.second.EmitCU(MCOS);
+}
+
+void MCDwarfDwoLineTable::Emit(MCStreamer &MCOS) const {
+ MCOS.EmitLabel(Header.Emit(&MCOS, None).second);
+}
+
+std::pair<MCSymbol *, MCSymbol *> MCDwarfLineTableHeader::Emit(MCStreamer *MCOS) const {
+ static const char StandardOpcodeLengths[] = {
+ 0, // length of DW_LNS_copy
+ 1, // length of DW_LNS_advance_pc
+ 1, // length of DW_LNS_advance_line
+ 1, // length of DW_LNS_set_file
+ 1, // length of DW_LNS_set_column
+ 0, // length of DW_LNS_negate_stmt
+ 0, // length of DW_LNS_set_basic_block
+ 0, // length of DW_LNS_const_add_pc
+ 1, // length of DW_LNS_fixed_advance_pc
+ 0, // length of DW_LNS_set_prologue_end
+ 0, // length of DW_LNS_set_epilogue_begin
+ 1 // DW_LNS_set_isa
+ };
+ assert(array_lengthof(StandardOpcodeLengths) == (DWARF2_LINE_OPCODE_BASE - 1));
+ return Emit(MCOS, StandardOpcodeLengths);
+}
+
+static const MCExpr *forceExpAbs(MCStreamer &OS, const MCExpr* Expr) {
+ MCContext &Context = OS.getContext();
+ assert(!isa<MCSymbolRefExpr>(Expr));
+ if (Context.getAsmInfo()->hasAggressiveSymbolFolding())
+ return Expr;
+
+ MCSymbol *ABS = Context.CreateTempSymbol();
+ OS.EmitAssignment(ABS, Expr);
+ return MCSymbolRefExpr::Create(ABS, Context);
+}
+
+static void emitAbsValue(MCStreamer &OS, const MCExpr *Value, unsigned Size) {
+ const MCExpr *ABS = forceExpAbs(OS, Value);
+ OS.EmitValue(ABS, Size);
+}
+
+std::pair<MCSymbol *, MCSymbol *>
+MCDwarfLineTableHeader::Emit(MCStreamer *MCOS,
+ ArrayRef<char> StandardOpcodeLengths) const {
+
+ MCContext &context = MCOS->getContext();
+
+ // Create a symbol at the beginning of the line table.
+ MCSymbol *LineStartSym = Label;
+ if (!LineStartSym)
+ LineStartSym = context.CreateTempSymbol();
+ // Set the value of the symbol, as we are at the start of the line table.