[LLVMdev] Debug information under windows

[Daniel Kłobuszewski]

Hello,

Recently I found binaries produced with LLVM impossible to debug under 
Windows. This was probably related to the following bug: 
http://llvm.org/bugs/show_bug.cgi?id=13636

Asm generated from .ll files revealed that some offsets to debug 
information were incorrect: they were absolute instead of relative to 
their sections.

Following patch seemed to have repaired the problem, so I'm just leaving 
it here. Hopefully this will help someone.

Regards,
Daniel


diff -r 547972237a05 -r 6ed9378f04a3 lib/MC/MCAsmInfoCOFF.cpp
--- a/lib/MC/MCAsmInfoCOFF.cpp	Wed Oct 10 20:39:45 2012 +0200
+++ b/lib/MC/MCAsmInfoCOFF.cpp	Thu Oct 18 12:41:27 2012 +0200
@@ -38,6 +38,10 @@
    HasMicrosoftFastStdCallMangling = true;

    SupportsDataRegions = false;
+
+  DwarfUsesLabelOffsetForRanges = false;
+  DwarfRequiresRelocationForSectionOffset = false;
+  DwarfUsesRelocationsForStringPool = false;
  }

  void MCAsmInfoMicrosoft::anchor() { }