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 {
// The first 4 bytes is the total length of the information for this
// compilation unit (not including these 4 bytes for the length).
- MCOS->EmitAbsValue(MakeStartMinusEndExpr(*MCOS, *LineStartSym, *LineEndSym,4),
- 4);
+ emitAbsValue(*MCOS,
+ MakeStartMinusEndExpr(*MCOS, *LineStartSym, *LineEndSym, 4), 4);
// Next 2 bytes is the Version, which is Dwarf 2.
MCOS->EmitIntValue(2, 2);
// section to the end of the prologue. Not including the 4 bytes for the
// total length, the 2 bytes for the version, and these 4 bytes for the
// length of the prologue.
- MCOS->EmitAbsValue(MakeStartMinusEndExpr(*MCOS, *LineStartSym, *ProEndSym,
- (4 + 2 + 4)), 4);
+ emitAbsValue(
+ *MCOS,
+ MakeStartMinusEndExpr(*MCOS, *LineStartSym, *ProEndSym, (4 + 2 + 4)), 4);
// Parameters of the state machine, are next.
MCOS->EmitIntValue(context.getAsmInfo()->getMinInstAlignment(), 1);
const MCExpr *Size = MakeStartMinusEndExpr(*MCOS,
*StartSymbol, *EndSymbol, 0);
MCOS->EmitValue(Addr, AddrSize);
- MCOS->EmitAbsValue(Size, AddrSize);
+ emitAbsValue(*MCOS, Size, AddrSize);
}
// And finally the pair of terminating zeros.
// The 4 byte total length of the information for this compilation unit, not
// including these 4 bytes.
const MCExpr *Length = MakeStartMinusEndExpr(*MCOS, *InfoStart, *InfoEnd, 4);
- MCOS->EmitAbsValue(Length, 4);
+ emitAbsValue(*MCOS, Length, 4);
// The 2 byte DWARF version.
MCOS->EmitIntValue(context.getDwarfVersion(), 2);
const MCExpr *SectionSize = MakeStartMinusEndExpr(*MCOS,
*StartSymbol, *EndSymbol, 0);
MCOS->EmitIntValue(0, AddrSize);
- MCOS->EmitAbsValue(SectionSize, AddrSize);
+ emitAbsValue(*MCOS, SectionSize, AddrSize);
}
// Emit end of list entry
streamer);
unsigned size = getSizeForEncoding(streamer, symbolEncoding);
if (asmInfo->doDwarfFDESymbolsUseAbsDiff() && isEH)
- streamer.EmitAbsValue(v, size);
+ emitAbsValue(streamer, v, size);
else
streamer.EmitValue(v, size);
}
// Range Length
const MCExpr *Range = MakeStartMinusEndExpr(Streamer, *Frame.Begin,
*Frame.End, 0);
- Streamer.EmitAbsValue(Range, 4);
+ emitAbsValue(Streamer, Range, 4);
// Compact Encoding
Size = getSizeForEncoding(Streamer, dwarf::DW_EH_PE_udata4);
// Length
const MCExpr *Length = MakeStartMinusEndExpr(streamer, *sectionStart,
*sectionEnd, 4);
- streamer.EmitAbsValue(Length, 4);
+ emitAbsValue(streamer, Length, 4);
// CIE ID
unsigned CIE_ID = IsEH ? 0 : -1;
// Length
const MCExpr *Length = MakeStartMinusEndExpr(streamer, *fdeStart, *fdeEnd, 0);
- streamer.EmitAbsValue(Length, 4);
+ emitAbsValue(streamer, Length, 4);
streamer.EmitLabel(fdeStart);
if (IsEH) {
const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart,
0);
- streamer.EmitAbsValue(offset, 4);
+ emitAbsValue(streamer, offset, 4);
} else if (!asmInfo->doesDwarfUseRelocationsAcrossSections()) {
const MCExpr *offset = MakeStartMinusEndExpr(streamer, *SectionStart,
cieStart, 0);
- streamer.EmitAbsValue(offset, 4);
+ emitAbsValue(streamer, offset, 4);
} else {
streamer.EmitSymbolValue(&cieStart, 4);
}
// PC Range
const MCExpr *Range = MakeStartMinusEndExpr(streamer, *frame.Begin,
*frame.End, 0);
- streamer.EmitAbsValue(Range, PCSize);
+ emitAbsValue(streamer, Range, PCSize);
if (IsEH) {
// Augmentation Data Length