From: kernel test robot <lkp@intel.com>
To: Alexei Starovoitov <ast@kernel.org>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
linux-kernel@vger.kernel.org,
Daniel Borkmann <daniel@iogearbox.net>
Subject: ld.lld: error: undefined symbol: bpf_preload_ops
Date: Fri, 30 Oct 2020 01:21:05 +0800 [thread overview]
Message-ID: <202010300103.TZQy8PG9-lkp@intel.com> (raw)
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Hi Alexei,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 23859ae44402f4d935b9ee548135dd1e65e2cbf4
commit: d71fa5c9763c24dd997a2fa4feb7a13a95bab42c bpf: Add kernel module with user mode driver that populates bpffs.
date: 2 months ago
config: x86_64-randconfig-r016-20201029 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 772aaa602383cf82795572ebcd86b0e660f3579f)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d71fa5c9763c24dd997a2fa4feb7a13a95bab42c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout d71fa5c9763c24dd997a2fa4feb7a13a95bab42c
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> ld.lld: error: undefined symbol: bpf_preload_ops
>>> referenced by bpf_preload_kern.c:83 (kernel/bpf/preload/bpf_preload_kern.c:83)
>>> bpf/preload/bpf_preload_kern.o:(fini_umd) in archive kernel/built-in.a
>>> referenced by bpf_preload_kern.c:83 (kernel/bpf/preload/bpf_preload_kern.c:83)
>>> bpf/preload/bpf_preload_kern.o:(fini_umd) in archive kernel/built-in.a
>>> referenced by bpf_preload_kern.c:77 (kernel/bpf/preload/bpf_preload_kern.c:77)
>>> bpf/preload/bpf_preload_kern.o:(load_umd) in archive kernel/built-in.a
>>> referenced 1 more times
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next reply other threads:[~2020-10-29 17:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-29 17:21 kernel test robot [this message]
2020-10-31 3:13 kernel test robot
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