netdev - Re: [PATCH bpf] bpf: Support llvm-objcopy and llvm-objdump for vmlinux BTF

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Message-ID: <202003180233.P2XlAZ3C%lkp@intel.com>
Date:   Wed, 18 Mar 2020 02:34:03 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Fangrui Song <maskray@...gle.com>
Cc:     kbuild-all@...ts.01.org, bpf@...r.kernel.org,
        netdev@...r.kernel.org, daniel@...earbox.net,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        clang-built-linux@...glegroups.com,
        Stanislav Fomichev <sdf@...gle.com>, davem@...emloft.net,
        ast@...nel.org
Subject: Re: [PATCH bpf] bpf: Support llvm-objcopy and llvm-objdump for
 vmlinux BTF

Hi Fangrui,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on bpf/master]
[also build test WARNING on net/master linus/master v5.6-rc6]
[cannot apply to net-next/master next-20200317]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Fangrui-Song/bpf-Support-llvm-objcopy-and-llvm-objdump-for-vmlinux-BTF/20200317-125132
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git master
config: i386-randconfig-g003-20200317 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-5) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> objcopy: .tmp_vmlinux.btf: warning: empty loadable segment detected at vaddr=0xc1000000, is this intentional?
   objcopy: .tmp_vmlinux.btf: warning: empty loadable segment detected at vaddr=0xc1aae000, is this intentional?
   1+0 records in
   1+0 records out
   1 byte copied, 8.22e-05 s, 12.2 kB/s

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (33334 bytes)