[Fortran, Patch, PR57598] Fix coarray STOP

[Damian Rouson]

I don’t think the standard requires providing the stop code to the OS, but
it recommends doing so.  So this is a great idea.  Thanks for working on
coarray features.

Damian

On Thu, Dec 19, 2024 at 04:14 Andre Vehreschild <vehre@gmx.de> wrote:

> Hi all,
>
> attached patch fixes a rather old open issue, that I stumbled upon
> while trying to figure, why a test failed on the command line but not
> in the testsuite. The implementation of the STOP command in caf_single
> did not hand the errorcode over to the OS, as does non-caf STOP and as
> it is required by the standard. So I fixed that. I also added reporting
> of exceptions to the coarray (ERROR)? STOP routines. For this I have
> exported the existing function of the regular gfortran runtime library.
> I tried to do this via iexport_proto, but was never able to access the
> routine from the caf-library. I always got linker errors.
>
> After fixing caf-STOP the testsuite reported one regression, which I
> also fixed in send_by_ref.
>
> Bootstrapped and regtests ok on x86_64-pc-linux-gnu / F41. Ok for
> mainline?
>
> Regards,
>         Andre
> --
> Andre Vehreschild * Email: vehre ad gcc dot gnu dot org
>
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