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Thu, 15 Feb 2024 08:51:54 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 06CA520043; Thu, 15 Feb 2024 08:51:52 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BB87B20040; Thu, 15 Feb 2024 08:51:51 +0000 (GMT) Received: from osiris (unknown [9.152.212.60]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTPS; Thu, 15 Feb 2024 08:51:51 +0000 (GMT) Date: Thu, 15 Feb 2024 09:51:50 +0100 From: Heiko Carstens To: Nathan Chancellor Cc: gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, morbo@google.com, justinstitt@google.com, linux-s390@vger.kernel.org, llvm@lists.linux.dev, patches@lists.linux.dev Subject: Re: [PATCH] s390: Don't allow CONFIG_COMPAT with LD=ld.lld Message-ID: <20240215085150.6583-A-hca@linux.ibm.com> References: <20240214-s390-compat-lld-dep-v1-1-abf1f4b5e514@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240214-s390-compat-lld-dep-v1-1-abf1f4b5e514@kernel.org> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: KhXJETOcuspk-bhFnI_kjvMItpfgbksq X-Proofpoint-ORIG-GUID: cVqv_Fzdhg6blSlhm4N0nvNtlx4fdzPO X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-15_08,2024-02-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 malwarescore=0 mlxscore=0 mlxlogscore=656 impostorscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 phishscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402150069 On Wed, Feb 14, 2024 at 03:53:48PM -0700, Nathan Chancellor wrote: > When building 'ARCH=s390 defconfig compat.config' with GCC and > LD=ld.lld, there is an error when attempting to link the compat vDSO: > > ld.lld: error: unknown emulation: elf_s390 > make[4]: *** [arch/s390/kernel/vdso32/Makefile:48: arch/s390/kernel/vdso32/vdso32.so.dbg] Error 1 > > Much like clang, ld.lld only supports the 64-bit s390 emulation. Add a > dependency on not using LLD to CONFIG_COMPAT to avoid breaking the build > with this toolchain combination. > > Signed-off-by: Nathan Chancellor > --- > arch/s390/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Applied, thanks!