PR12365 and common symbols

[H.J. Lu]

On Tue, Apr 19, 2011 at 5:25 PM, Alan Modra <amodra@gmail.com> wrote:
> This patch makes ld keep IR-only common symbols in their own specially
> marked common section, so that ld can report an error if such a symbol
> is referenced.
>
> bfd/
>        PR ld/12365
>        * elfcode.h (elf_slurp_symbol_table): Put common plugin IR symbols
>        in their own common section.
>        * elflink.c (elf_link_add_object_symbols): Likewise.
>        * linker.c (generic_link_check_archive_element): Don't lose flags
>        if common section is pre-existing.
>        (_bfd_generic_link_add_one_symbol): Likewise.
> ld/
>        PR ld/12365
>        * ldfile.c (ldfile_try_open_bfd): Move code creating and switching
>        to plugin IR BFD..
>        * ldmain.c (add_archive_element): ..and similar code here..
>        * plugin.c (plugin_maybe_claim): ..to here.  New function.
>        (plugin_call_claim_file): Make static.
>        (asymbol_from_plugin_symbol): Set ELF st_shndx for common syms.
>        (plugin_multiple_common): New function.
>        (plugin_call_all_symbols_read): Hook in plugin_multiple_common.
>        * plugin.h (plugin_call_claim_file): Don't declare.
>        (plugin_maybe_claim): Declare.
>

BFD linker still doesn't work right:

http://www.sourceware.org/bugzilla/show_bug.cgi?id=12696


-- 
H.J.