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On Mon, Jan 31, 2005 at 10:32:27AM +1030, Alan Modra wrote: > On Sun, Jan 30, 2005 at 11:22:49AM -0800, H. J. Lu wrote: > > /usr/lib/crt1.o:(.dynamic+0x0): multiple definition of `_DYNAMIC' > [snip] > > The 2005-01-24 binutils is OK. It may have something to do with > > > > http://sources.redhat.com/ml/binutils/2005-01/msg00405.html > > Possible, I suppose. An as-needed shared lib will define syms whether > or not the lib is actually linked. It will be linked if any symbol it > defines satisfies an undefined reference, and conversely it isn't linked > then there are no references to its symbols. That should make it safe > to leave its symbols in the symbol table, so long as we properly treat > them in _bfd_elf_merge_symbol. If there is a problem, it's likely to be > in _bfd_elf_merge_symbol. I'm testing the following on powerpc and x86 to ensure I haven't made any silly mistakes. It's a big hammer approach but cleaner than what we had before, I think. Rather than tweaking _bfd_elf_merge_symbol and other places to specially handle symbols defined in unused --as-needed libs, I've munged all such symbols back to their new state. Hopefully this won't break too many back-end elf_link_hash_traverse functions.. Would you please test this on ia64? I don't have access to ia64 hardware, so testing this isn't so easy. -- Alan Modra IBM OzLabs - Linux Technology Centre
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