Ignore symbols defined in SHF_EXCLUDE sections

[H.J. Lu]

On Wed, Aug 31, 2016 at 2:56 AM, Alan Modra <amodra@gmail.com> wrote:
>         PR 20513
>         * ldlang.c (section_already_linked): Deal with SHF_EXCLUDE sections.
>
> diff --git a/ld/ldlang.c b/ld/ldlang.c
> index aee8720..07c2182 100644
> --- a/ld/ldlang.c
> +++ b/ld/ldlang.c
> @@ -2294,6 +2294,12 @@ section_already_linked (bfd *abfd, asection *sec, void *data)
>        return;
>      }
>
> +  /* Deal with SHF_EXCLUDE ELF sections.  */
> +  if (!bfd_link_relocatable (&link_info)
> +      && (abfd->flags & BFD_PLUGIN) == 0
> +      && (sec->flags & (SEC_GROUP | SEC_KEEP | SEC_EXCLUDE)) == SEC_EXCLUDE)
> +    sec->output_section = bfd_abs_section_ptr;
> +
>    if (!(abfd->flags & DYNAMIC))
>      bfd_section_already_linked (abfd, sec, &link_info);
>  }
>

I checked in this patch to add some tests.

-- 
H.J.
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