From ce10842036320b5cc1b4f7057662fb3ef2d1ea10 Mon Sep 17 00:00:00 2001 From: David Majnemer Date: Tue, 19 Jan 2016 23:05:27 +0000 Subject: [MC, COFF] Add .reloc support for WinCOFF This adds rudimentary support for a few relocations that we will use for the CodeView debug format. llvm-svn: 258216 --- llvm/lib/MC/MCObjectStreamer.cpp | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'llvm/lib/MC/MCObjectStreamer.cpp') diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp index 8ee24786967..19ce9113f27 100644 --- a/llvm/lib/MC/MCObjectStreamer.cpp +++ b/llvm/lib/MC/MCObjectStreamer.cpp @@ -420,13 +420,18 @@ bool MCObjectStreamer::EmitRelocDirective(const MCExpr &Offset, StringRef Name, if (!Offset.evaluateAsAbsolute(OffsetValue)) llvm_unreachable("Offset is not absolute"); + if (OffsetValue < 0) + llvm_unreachable("Offset is negative"); + MCDataFragment *DF = getOrCreateDataFragment(); flushPendingLabels(DF, DF->getContents().size()); - MCFixupKind Kind; - if (!Assembler->getBackend().getFixupKind(Name, Kind)) + Optional MaybeKind = Assembler->getBackend().getFixupKind(Name); + if (!MaybeKind.hasValue()) return true; + MCFixupKind Kind = *MaybeKind; + if (Expr == nullptr) Expr = MCSymbolRefExpr::create(getContext().createTempSymbol(), getContext()); -- cgit v1.2.3