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Debug Info: revert 178722 for now.

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There is a difference for FORM_ref_addr between DWARF 2 and DWARF 3+.
Since Eric is against guarding DWARF 2 ref_addr with DarwinGDBCompat, we are
still in discussion on how to handle this.

The correct solution is to update our header to say version 4 instead of version
2 and update tool chains as well.

rdar://problem/13559431


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178806 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manman Ren
2013-04-04 23:13:11 +00:00
parent 2e892e4e27
commit 624a93ee47
3 changed files with 4 additions and 15 deletions
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9
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1791,14 +1791,7 @@ void DwarfDebug::emitDIE(DIE *Die, std::vector<DIEAbbrev *> *Abbrevs) {
DwarfUnits &Holder = useSplitDwarf() ? SkeletonHolder : InfoHolder;
Addr += Holder.getCUOffset(Origin->getCompileUnit());
}
// DWARF4: References that use the attribute form DW_FORM_ref_addr are
// specified to be four bytes in the DWARF 32-bit format and eight bytes
// in the DWARF 64-bit format, while DWARF Version 2 specifies that such
// references have the same size as an address on the target system.
// Our current version is version 2.
Asm->OutStreamer.EmitIntValue(Addr,
Form == dwarf::DW_FORM_ref_addr ?
Asm->getDataLayout().getPointerSize() : 4);
Asm->EmitInt32(Addr);
break;
}
case dwarf::DW_AT_ranges: {