[Bug libstdc++/78677] __gthread_key_create assumed not to fail in eh_globals.cc

["redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78677

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-12-05
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Chris Johns from comment #0)
> Some operating system, for example RTEMS, may fail to create a POSIX key if
> not configured with enough resources. The lack of any error reporting in
> __eh_globals_init::__eh_globals_init() means exceptions are silently
> switched from thread safe to not being thread safe and this is not a concern
> for RTEMS.

I assume this is a typo and you mean this *is* a concern for RTEMS? :-)

> A way to report errors would be welcomed by RTEMS. We could hook this is a
> fatal error so the user is aware there is a critical issue that needs to be
> addressed.

I agree there should be some code to deal with the error there.

This seems like a specific example of the broader problem you described in PR
60645.