Force some values to be absolute and align based on the FDE pointers size. A small
step towards using .cfi_* on OS X.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130273 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index 243da61..566c090 100644
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -622,14 +622,14 @@
const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
const MCSection §ion = *asmInfo.getEHFrameSection();
streamer.SwitchSection(§ion);
- MCSymbol *sectionStart = streamer.getContext().CreateTempSymbol();
+ MCSymbol *sectionStart = context.CreateTempSymbol();
MCSymbol *sectionEnd = streamer.getContext().CreateTempSymbol();
// Length
const MCExpr *Length = MakeStartMinusEndExpr(streamer, *sectionStart,
*sectionEnd, 4);
streamer.EmitLabel(sectionStart);
- streamer.EmitValue(Length, 4);
+ streamer.EmitAbsValue(Length, 4);
// CIE ID
streamer.EmitIntValue(0, 4);
@@ -715,13 +715,13 @@
// Length
const MCExpr *Length = MakeStartMinusEndExpr(streamer, *fdeStart, *fdeEnd, 0);
- streamer.EmitValue(Length, 4);
+ streamer.EmitAbsValue(Length, 4);
streamer.EmitLabel(fdeStart);
// CIE Pointer
const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart,
0);
- streamer.EmitValue(offset, 4);
+ streamer.EmitAbsValue(offset, 4);
unsigned fdeEncoding = asmInfo.getFDEEncoding();
unsigned size = getSizeForEncoding(streamer, fdeEncoding);
@@ -731,7 +731,7 @@
// PC Range
const MCExpr *Range = MakeStartMinusEndExpr(streamer, *frame.Begin,
*frame.End, 0);
- streamer.EmitValue(Range, size);
+ streamer.EmitAbsValue(Range, size);
// Augmentation Data Length
MCSymbol *augmentationStart = streamer.getContext().CreateTempSymbol();
@@ -751,7 +751,7 @@
EmitCFIInstructions(streamer, frame.Instructions, frame.Begin);
// Padding
- streamer.EmitValueToAlignment(4);
+ streamer.EmitValueToAlignment(size);
return fdeEnd;
}