Fix garbage collection of common symbols

[H.J. Lu]

On Mon, Jan 19, 2015 at 3:03 AM, Alan Modra <amodra@gmail.com> wrote:
> Running lang_common before garbage collection means slightly less work
> in garbage collection code, since common symbols should no longer
> appear there.  It does have the side effect of keeping linker script
> symbols (at least those defined outside of sections) global too,
> hence some testsuite churn.
>
> bfd/
>         PR 17165
            ^^^^^^^^^^^

Didn't you mean PR ld/17615:

https://sourceware.org/bugzilla/show_bug.cgi?id=17615

>         * elf-bfd.h (ELF_COMMON_DEF): Note that this might be true for
>         linker script assignments too.
>         * elflink.c (elf_gc_sweep_symbol): Don't drop ELF_COMMON_DEF syms.
>         (bfd_elf_gc_mark_dynamic_ref_symbol): Similarly.
> ld/
>         PR 17165
>         * ldlang.c (lang_process): Run lang_common before lang_gc_sections.
> ld/testsuite/
>         * ld-gc/pr14265.d,
>         * ld-cris/tls-gc-68.d,
>         * ld-cris/tls-gc-69.d,
>         * ld-cris/tls-gc-70.d,
>         * ld-cris/tls-gc-71.d,
>         * ld-cris/tls-gc-75.d,
>         * ld-cris/tls-gc-76.d,
>         * ld-cris/tls-gc-79.d,
>         * ld-mmix/bpo-10.d,
>         * ld-mmix/bpo-11.d: Update.
>

-- 
H.J.