Heads-up: riscv64 (wip-riscv branch) target for Mes 0.25 release

[Janneke Nieuwenhuizen]

Hi Wladimir,

Just to give you a heads-up that your RISC-V work is now slated for the
release upcomping mes-0.25 release.

Now that we finally have the M2-Planet build integrated, tested and the
Full Source Bootstrap in place in GNU Guix, it's time to

Current work scheduled for release is on

   wip
     -> wip-x86_64
        -> wip-riscv

branches.  Andrius and I have fixed a blocker for the x86_64 M2-Planet
build, which depends on a generic 64bit fix in current M2-Planet master.

We'll probably wait for M2-Planet-0.11.0 to come out before
releasing Mes 0.25.

The good news is that Mes may just build using M2-Planet on RISC-V.
I've created a preliminary patch for that

    https://git.savannah.gnu.org/cgit/mes.git/log/?h=wip-riscv
    
https://git.savannah.gnu.org/cgit/mes.git/commit/?id=b6fa78a697840e7d0dbc71214c963b0175e64130

which now builds but segfaults on my QEMU binfmt.

As for your RISC-V patches, initially I wondered if we should expose the
_AT variants in separate files, so instead of

--8<---------------cut here---------------start------------->8---
// lib/linux/access.c
int
access (char const *file_name, int how)
{
#if defined (SYS_access)
  return _sys_call2 (SYS_access, file_name, how);
#elif defined (SYS_faccessat)
    return _sys_call3 (SYS_faccessat, AT_FDCWD, file_name, how);
#else
#error No usable access sysall
#endif
}
--8<---------------cut here---------------end--------------->8---

having simply both

--8<---------------cut here---------------start------------->8---
// lib/linux/access.c
int
access (char const *file_name, int how)
{
  return _sys_call2 (SYS_access, file_name, how);
}
--8<---------------cut here---------------end--------------->8---

and

--8<---------------cut here---------------start------------->8---
// lib/linux/faccessat.c
int
access (char const *file_name, int how)
{
  return _sys_call3 (SYS_faccessat, AT_FDCWD, file_name, how);
}
--8<---------------cut here---------------end--------------->8---

and switch files based on achitecture, but I decided we've waited long
enough for RISC-V and we can do this if the need arises.

Anyway, thanks again for your contribution and sorry it has been taking
so long to release!

Greetings,
Janneke

-- 
Janneke Nieuwenhuizen <janneke@gnu.org>  | GNU LilyPond https://LilyPond.org
Freelance IT https://www.JoyOfSource.com | Avatar® https://AvatarAcademy.com