[bpf-next:master 1888/1893] kernel/bpf/ringbuf.o: warning: objtool: __llvm_gcov_writeout()+0x7: call without frame pointer save/setup
6:25 p.m.
TO: "Andrii, Nakryiko," <andriin(a)fb.com>
CC: Daniel Borkmann <daniel(a)iogearbox.net>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
head: 551f08b1d8eadbcb02e4384d28128cc05a8647a8
commit: 35dd30a79d27f96ab5ca28e65a869ed9e611af69 [1888/1893] bpf: Implement BPF ring
buffer and verifier support for it
config: x86_64-randconfig-a002-20200531 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
2388a096e7865c043e83ece4e26654bd3d1a20d5)
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
git checkout 35dd30a79d27f96ab5ca28e65a869ed9e611af69
# 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: kbuild test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
> kernel/bpf/ringbuf.o: warning: objtool:
__llvm_gcov_writeout()+0x7: call without frame pointer save/setup
> kernel/bpf/ringbuf.o: warning: objtool: __llvm_gcov_reset()+0x0: call without frame
pointer save/setup
> kernel/bpf/ringbuf.o: warning: objtool: __llvm_gcov_flush()+0x0: call without frame
pointer save/setup
> kernel/bpf/ringbuf.o: warning: objtool: __llvm_gcov_init()+0x0: call without frame
pointer save/setup
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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kbuild test robot