Building the Linux kernel with Clang and LLVM
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From: John Garry <john.g.garry@oracle.com>
To: Nathan Chancellor <nathan@kernel.org>, kernel test robot <lkp@intel.com>
Cc: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me,
	jejb@linux.ibm.com, martin.petersen@oracle.com,
	djwong@kernel.org, viro@zeniv.linux.org.uk, brauner@kernel.org,
	chandan.babu@oracle.com, dchinner@redhat.com,
	llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-nvme@lists.infradead.org, linux-xfs@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, tytso@mit.edu, jbongio@google.com,
	linux-api@vger.kernel.org
Subject: Re: [PATCH 09/21] block: Add checks to merging of atomic writes
Date: Wed, 4 Oct 2023 12:40:15 +0100	[thread overview]
Message-ID: <3825f45c-9321-45f1-384e-384baf6c62f8@oracle.com> (raw)
In-Reply-To: <20231002225048.GA558147@dev-arch.thelio-3990X>

On 02/10/2023 23:50, Nathan Chancellor wrote:
>>>> ld.lld: error: undefined symbol: __moddi3
>>     >>> referenced by blk-merge.c
>>     >>>               block/blk-merge.o:(ll_back_merge_fn) in archive vmlinux.a
>>     >>> referenced by blk-merge.c
>>     >>>               block/blk-merge.o:(ll_back_merge_fn) in archive vmlinux.a
>>     >>> referenced by blk-merge.c
>>     >>>               block/blk-merge.o:(bio_attempt_front_merge) in archive vmlinux.a
>>     >>> referenced 3 more times
> This does not appear to be clang specific, I can reproduce it with GCC
> 12.3.0 and the same configuration target.

Yeah, I just need to stop using the modulo operator for 64b values, 
which I had already been advised to :|

Thanks,
John

      reply	other threads:[~2023-10-04 11:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20230929102726.2985188-10-john.g.garry@oracle.com>
2023-09-30 13:40 ` [PATCH 09/21] block: Add checks to merging of atomic writes kernel test robot
2023-10-02 22:50   ` Nathan Chancellor
2023-10-04 11:40     ` John Garry [this message]

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