Re: [PATCH] PowerPC: Replace kretprobe with rethook

Re: [PATCH] PowerPC: Replace kretprobe with rethook

[kernel test robot]

Hi Abhishek,

kernel test robot noticed the following build errors:

[auto build test ERROR on powerpc/next]
[also build test ERROR on powerpc/fixes linus/master v6.9 next-20240516]
[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/Abhishek-Dubey/PowerPC-Replace-kretprobe-with-rethook/20240516-214818
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:    https://lore.kernel.org/r/20240516134646.1059114-1-adubey%40linux.ibm.com
patch subject: [PATCH] PowerPC: Replace kretprobe with rethook
config: powerpc-asp8347_defconfig (https://download.01.org/0day-ci/archive/20240517/202405171203.CasoixJG-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240517/202405171203.CasoixJG-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405171203.CasoixJG-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: arch_rethook_trampoline
   >>> referenced by stacktrace.c
   >>>               arch/powerpc/kernel/stacktrace.o:(arch_stack_walk_reliable) in archive vmlinux.a
   >>> referenced by stacktrace.c
   >>>               arch/powerpc/kernel/stacktrace.o:(arch_stack_walk_reliable) in archive vmlinux.a

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