linux-kernel - Re: [PATCH] selftests/nolibc: fix sparc32 tests with -mcpu=v9

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Message-ID: <18bb48f2-b5aa-42a6-bc09-4773e1907670@t-8ch.de>
Date: Tue, 6 Jan 2026 12:47:56 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>, 
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests/nolibc: fix sparc32 tests with -mcpu=v9

Hi Geert,

On 2026-01-06 12:40:12+0100, Geert Uytterhoeven wrote:
> On Sun, 4 Jan 2026 at 23:14, Thomas Weißschuh <linux@...ssschuh.net> wrote:

(...)

> > --- a/tools/testing/selftests/nolibc/Makefile.nolibc
> > +++ b/tools/testing/selftests/nolibc/Makefile.nolibc
> > @@ -117,7 +117,7 @@ DEFCONFIG_riscv32    = rv32_defconfig
> >  DEFCONFIG_riscv64    = defconfig
> >  DEFCONFIG_s390x      = defconfig
> >  DEFCONFIG_loongarch  = defconfig
> > -DEFCONFIG_sparc32    = sparc32_defconfig
> > +DEFCONFIG_sparc32    = sparc64_defconfig
> 
> How can we test sparc32 using a 64-bit kernel?

CONFIG_COMPAT=y

Please note that this changed in (the now committed) v2 anyways:
https://lore.kernel.org/lkml/20260106-nolibc-sparc32-fix-v2-1-7c5cd6b175c2@weissschuh.net/

> >  DEFCONFIG_sparc64    = sparc64_defconfig
> >  DEFCONFIG_m68k       = virt_defconfig
> >  DEFCONFIG_sh4        = rts7751r2dplus_defconfig

(...)


Thomas