linux-kernel - Re: [PATCH 0/3] tools/nolibc: add support for SuperH

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Message-ID: <66678d81-b1ac-48de-be82-1c82ca1c3e31@t-8ch.de>
Date: Mon, 9 Jun 2025 12:05:18 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>, 
	Rich Felker <dalias@...c.org>, Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>, 
	linux-sh@...r.kernel.org, linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: [PATCH 0/3] tools/nolibc: add support for SuperH

Hi Adrian,

On 2025-06-09 11:53:25+0200, John Paul Adrian Glaubitz wrote:
> On Mon, 2025-06-09 at 11:28 +0200, Thomas Weißschuh wrote:
> > Add support for SuperH/"sh" to nolibc.
> > Only sh4 is tested for now.
> > 
> > This is only tested on QEMU so far.
> > Additional testing would be very welcome.
> > 
> > Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> > ---
> > Thomas Weißschuh (3):
> >       selftests/nolibc: fix EXTRACONFIG variables ordering
> >       selftests/nolibc: use file driver for QEMU serial
> >       tools/nolibc: add support for SuperH
> > 
> >  tools/include/nolibc/arch-sh.h              | 162 ++++++++++++++++++++++++++++
> >  tools/include/nolibc/arch.h                 |   2 +
> >  tools/testing/selftests/nolibc/Makefile     |  15 ++-
> >  tools/testing/selftests/nolibc/run-tests.sh |   3 +-
> >  4 files changed, 177 insertions(+), 5 deletions(-)
> > ---
> > base-commit: 6275a61db2f0586b8a5d651dfc7b4aacf9d0b2d6
> > change-id: 20250528-nolibc-sh-8b4e3bb8efcb
> 
> I have no experience with the selftest code but I can definitely test
> on real hardware if you can point me to some instructions on how to
> run the tests.

That would be much appreciated.
You can compile the selftests like this:

$ cd tools/testing/selftests/nolibc
$ make [CC= CFLAGS_EXTRA=] nolibc-test
$ ./nolibc-test

The test executable is fully self-contained, you can also cross-compile
it and copy it around.


Thomas