[Dwarf Patch] Improve pubnames and pubtypes generation. (issue 6197069)

Cary Coutant ccoutant@google.com
Wed May 30 17:52:00 GMT 2012

> At the time we emit the pubtypes table, we have a pointer to the DIE
> that has been moved to the type unit, and there's no mapping from that
> back to the skeleton DIE. As it stands, we don't even emit a skeleton
> DIE unless one of its descendants is a declaration, so we can't count
> on always having a skeleton DIE to point to. In the case of
> enumeration constants, if we did have a skeleton DIE, it would only be
> for the parent enumeration type.
> How about we modify the patch to just emit a 0 for the DIE offset in a
> pubtype entry?

I can add a field to the comdat_type_node structure to keep track of
the skeleton DIE for a given type unit, so that I can easily get the
right DIE offset for cases where there is a skeleton DIE. When there
is no skeleton DIE, I'll change it to emit 0 for the DIE offset. Sound


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