[peterz-queue:objtool/retpoline 15/15] arch/x86/kernel/ftrace_64.o: warning: objtool: can't find symbol containing .altinstr_replacement+0x0

[kernel test robot <lkp@intel.com>]

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Hi Peter,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git objtool/retpoline
head:   72260c7ae8c8e1265dbd20213ce67ddfaf76df8e
commit: 72260c7ae8c8e1265dbd20213ce67ddfaf76df8e [15/15] objtool,x86: Rewrite retpoline thunk calls
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=72260c7ae8c8e1265dbd20213ce67ddfaf76df8e
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue objtool/retpoline
        git checkout 72260c7ae8c8e1265dbd20213ce67ddfaf76df8e
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/ftrace_64.o: warning: objtool: can't find symbol containing .altinstr_replacement+0x0
>> arch/x86/kernel/ftrace_64.o: warning: objtool: elf_create_reloc: alt_instr::instr_offset
>> arch/x86/kernel/ftrace_64.o: warning: objtool: elf_add_alternative

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

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