From: Thomas Huth <thuth@redhat.com>
To: "Christian Borntraeger" <borntraeger@de.ibm.com>,
"Stefano Garzarella" <sgarzare@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Janosch Frank" <frankja@linux.ibm.com>,
"Cornelia Huck" <cohuck@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
qemu-devel <qemu-devel@nongnu.org>,
qemu-s390x <qemu-s390x@nongnu.org>
Subject: Compiling the s390-ccw bios with clang (was: Re: s390-ccw: warning: writing 1 byte into a region of size 0)
Date: Fri, 23 Apr 2021 09:57:08 +0200 [thread overview]
Message-ID: <8abfb851-a5d2-8608-fe96-2eb3014adb96@redhat.com> (raw)
In-Reply-To: <b167616b-1908-1a76-a2af-35b87c05d570@de.ibm.com>
On 23/04/2021 08.52, Christian Borntraeger wrote:
[...]
> We can of course discuss if we compile the BIOS for z10 instead of z900. TCG
> in the mean time can handle up to z13 and z10 is now also 13 years old.
I'd really like to see us supporting Clang in the s390-ccw bios, too, since
it provides additional useful compiler warnings ... but switching the -mz900
to -mz10 here also means that we could not boot VMs anymore that use a CPU
that is older than the z10...
Is anybody still using such old CPUs? Should we maybe deprecate all CPUs
that are older than the z10 in QEMU? Alternatively, we could try to detect
Clang in the Makefile, and only use -mz10 in that case and continue to use
-mz900 in the other case...?
Thomas
next prev parent reply other threads:[~2021-04-23 7:58 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 4:18 s390-ccw: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] Philippe Mathieu-Daudé
2021-04-22 4:47 ` Thomas Huth
2021-04-22 6:04 ` Christian Borntraeger
2021-04-22 10:15 ` Daniel P. Berrangé
2021-04-22 10:30 ` Peter Maydell
2021-04-22 11:24 ` Philippe Mathieu-Daudé
2021-04-22 11:47 ` Thomas Huth
2021-04-22 12:41 ` Christian Borntraeger
2021-04-22 14:31 ` Philippe Mathieu-Daudé
2021-04-22 15:38 ` Thomas Huth
2021-04-22 15:43 ` Philippe Mathieu-Daudé
2021-04-22 15:52 ` Stefano Garzarella
2021-04-22 16:07 ` Thomas Huth
2021-04-22 16:54 ` Philippe Mathieu-Daudé
2021-04-23 6:40 ` Stefano Garzarella
2021-04-23 6:52 ` Christian Borntraeger
2021-04-23 7:57 ` Thomas Huth [this message]
2021-04-23 8:05 ` Compiling the s390-ccw bios with clang Christian Borntraeger
2021-04-23 8:07 ` Compiling the s390-ccw bios with clang (was: Re: s390-ccw: warning: writing 1 byte into a region of size 0) Cornelia Huck
2021-04-23 8:22 ` Thomas Huth
2021-04-23 8:47 ` Daniel P. Berrangé
2021-04-23 8:52 ` Thomas Huth
2021-04-23 9:00 ` Daniel P. Berrangé
2021-04-22 11:48 ` s390-ccw: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] Daniel P. Berrangé
2021-04-22 14:34 ` Philippe Mathieu-Daudé
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