kernel test robot wrote:
Hi Sathvika,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/topic/ppc-kvm]
[also build test ERROR on linus/master v6.0-rc5]
[cannot apply to powerpc/next masahiroy-kbuild/for-next next-20220912]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url:
https://github.com/intel-lab-lkp/linux/commits/Sathvika-Vasireddy/objtool-Enable-and-implement-mcount-option-on-powerpc/20220912-163023
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
topic/ppc-kvm
config: x86_64-rhel-8.3
(https://download.01.org/0day-ci/archive/20220913/202209130240.gpgmxw7t-...@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
#
https://github.com/intel-lab-lkp/linux/commit/ca5e2b42c0d4438ba93623579b6860b98f3598f3
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review
Sathvika-Vasireddy/objtool-Enable-and-implement-mcount-option-on-powerpc/20220912-163023
git checkout ca5e2b42c0d4438ba93623579b6860b98f3598f3
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <l...@intel.com>
Thanks.
All errors (new ones prefixed by >>):
cc1: error: '-mnop-mcount' is not implemented for '-fPIC'
CONFIG_NOP_MCOUNT is used for FTRACE_MCOUNT_USE_CC, so instead of:
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f9920f1341c8..a8dd138df637 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -189,6 +189,7 @@ config X86
select HAVE_CONTEXT_TRACKING_USER_OFFSTACK if
HAVE_CONTEXT_TRACKING_USER
select HAVE_C_RECORDMCOUNT
select HAVE_OBJTOOL_MCOUNT if HAVE_OBJTOOL
+ select HAVE_NOP_MCOUNT if HAVE_OBJTOOL_MCOUNT
select HAVE_BUILDTIME_MCOUNT_SORT
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
I think you should do:
+ select HAVE_NOP_MCOUNT if FTRACE_MCOUNT_USE_OBJTOOL
I was hoping we could reuse CONFIG_NOP_MCOUNT seeing as it is only used
by s390, but I now wonder if it is better to just keep that separate. We
could introduce HAVE_OBJTOOL_NOP_MCOUNT for objtool instead.
- Naveen
