[RFC v2][PATCH 22/27] Export stack_used as __stack_used

[Pedro Alves]

On 06/13/2016 11:38 AM, Gary Benson wrote:
> The Infinity note libpthread::thr_iter (broadly equivalent to
> libthread_db's td_ta_thr_iter) requires access to both __stack_user
> and stack_used, but only the former is visible to it.  This commit
> renames "stack_used" as "__stack_used" and changes it from a static
> variable in allocatestack.c to an internally exported symbol available
> to all nptl source files.

This rename alone should fix glibc PR 17629 (and thus GDB PR 9635).

 [put all symbols nptl_db looks up in the private namespace]
 https://sourceware.org/bugzilla/show_bug.cgi?id=17629

Thus I think it'd be reasonable (and good) to split the renaming part
of this patch out of the series, and get it into the tree.  I
think it could go in quickly.

BTW, the td_ta_thr_iter.c::iterate_thread_list hunk looks
like just a code style change unrelated to the subject of
the patch.

Thanks,
Pedro Alves