Aren/haiku
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ValueLocation::SetTo() normally tries to resolve size and offset differences

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versus the passed in base location. In the case of a union we don't
want this behavior since all members start at offset 0. Fixes union values
showing up incorrectly in various circumstances.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39797 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rene Gollent 2010-12-10 01:02:04 +00:00
parent 2e1a62865f
commit a4943027ae
1 changed files with 7 additions and 1 deletions
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8
src/apps/debugger/debug_info/DwarfTypes.cpp
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@ -691,7 +691,13 @@ DwarfCompoundType::_ResolveDataMemberLocation(DwarfType* memberType,
if (fEntry->Tag() != DW_TAG_union_type)
return B_BAD_VALUE;
if (!location->SetTo(parentLocation, 0, memberType->ByteSize() * 8))
// since all members start at the same location, set up
// the location by hand since we don't want the size difference
// between the overall union and the member being
// factored into the assigned address.
ValuePieceLocation piece = parentLocation.PieceAt(0);
piece.SetSize(memberType->ByteSize());
if (!location->AddPiece(piece))
return B_NO_MEMORY;
break;