[patch][gold] Create __exidx_start and __exdix_end even without a exidx section

[Ian Lance Taylor]

Rafael Espindola <espindola@google.com> writes:

> 2010-09-06  Rafael Espindola  <espindola@google.com>
>
>         * arm.cc (do_finalize_sections): Create the __exidx_start and
> 	__exdix_end symbols even when the section is missing.

This is OK.

Thanks.

Ian