Re: Updated Sourceware infrastructure plans

Christophe Lyon via Gdb
2024-04-18T09:02:56Z

Hi,

On Thu, 18 Apr 2024 at 10:15, FX Coudert <fxcoudert@gmail.com> wrote:
>
> > I regenerate auto* files from time to time for libgfortran. Regenerating
> > them has always been very fragile (using --enable-maintainer-mode),
> > and difficult to get right.
>
> I have never found them difficult to regenerate, but if you have only a non maintainer build, it is a pain to have to make a new maintainer build for a minor change.
>

FWIW, we have noticed lots of warnings from autoreconf in libgfortran.
I didn't try to investigate, since the regenerated files are identical
to what is currently in the repo.

For instance, you can download the "stdio" output from the
autoregen.py step in
https://builder.sourceware.org/buildbot/#/builders/269/builds/4373

Thanks,

Christophe

> Moreover, our m4 code is particularly painful to use and unreadable. I have been wondering for some time: should we switch to simpler Python scripts? It would also mean that we would have fewer files in the generated/ folder: right now, every time we add new combinations of types, we have a combinatorial explosion of files.
>
> $ ls generated/sum_*
> generated/sum_c10.c generated/sum_c17.c generated/sum_c8.c generated/sum_i16.c generated/sum_i4.c generated/sum_r10.c generated/sum_r17.c generated/sum_r8.c
> generated/sum_c16.c generated/sum_c4.c generated/sum_i1.c generated/sum_i2.c generated/sum_i8.c generated/sum_r16.c generated/sum_r4.c
>
> We could imagine having a single file for all sum intrinsics.
>
> How do Fortran maintainers feel about that?
>
> FX