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From: Heiko Carstens <hca@linux.ibm.com>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Linux-Next Mailing List <linux-next@vger.kernel.org>,
	clang-built-linux <clang-built-linux@googlegroups.com>,
	lkft-triage@lists.linaro.org,
	open list <linux-kernel@vger.kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Nathan Chancellor <natechancellor@gmail.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Vasily Gorbik <gor@linux.ibm.com>
Subject: Re: [next] [clang] s390: clang: error: unable to execute command: Segmentation fault (core dumped)
Date: Thu, 17 Jun 2021 16:55:43 +0200	[thread overview]
Message-ID: <YMtib5hKVyNknZt3@osiris> (raw)
In-Reply-To: <CA+G9fYu2SvwA7CDxTAJVdTi1K1267WDcdx9m6Ds6z0D3borthQ@mail.gmail.com>

On Thu, Jun 17, 2021 at 06:19:14PM +0530, Naresh Kamboju wrote:
> The git bisect found the first bad commit,
> The first bad commit:
> commit 3abbdfde5a6588a92209cd8b131769b8058e7c21
> Author: Heiko Carstens <hca@linux.ibm.com>
> Date:   Wed Jun 9 22:59:13 2021 +0200
>     s390/bitops: use register pair instead of register asm
> 
>     Get rid of register asm statement and use a register pair.
>     This allows the compiler to allocate registers on its own.
> 
>     Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
>     Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
>  arch/s390/include/asm/bitops.h | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> Previous HEAD position was 3abbdfde5a65 s390/bitops: use register pair
> instead of register asm
> HEAD is now at 7d9c6b8147bd Add linux-next specific files for 20210617

You need clang-13 development version which contains commit
d058262b1471 ("[SystemZ] Support i128 inline asm operands.").
Every older clang version won't be able to complile the kernel for
s390 anymore.

This is intended and won't be fixed.

  reply	other threads:[~2021-06-17 14:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17 12:27 Naresh Kamboju
2021-06-17 12:49 ` Naresh Kamboju
2021-06-17 14:55   ` Heiko Carstens [this message]
2021-06-17 19:31     ` [PATCH] scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390 Nathan Chancellor
2021-06-17 19:59       ` Nick Desaulniers
2021-06-18  8:42       ` Heiko Carstens
2021-06-19  0:40         ` Masahiro Yamada

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