[PATCH][RFC] Explicitly set ELF symbol size to zero for undefined symbols -- libbfd, gold

[Ian Lance Taylor]

Simon Baldwin <simonb@google.com> writes:

> !   // Use a symbol size of zero for undefined symbols from shared libraries.
> !   if (shndx == elfcpp::SHN_UNDEF && sym->in_dyn())
> !     osym.put_st_size(0);
> !   else
> !     osym.put_st_size(sym->symsize());

This isn't quite the same for gold.  in_dyn can mean that the symbol
is referenced but not defined in a dynamic object.  If you change
in_dyn to is_from_dynobj, this patch is OK for gold when it is OK for
BFD.  Thanks.

Ian