Hi Masami,

[auto build test ERROR on tip/master]

url:    
https://github.com/0day-ci/linux/commits/Masami-Hiramatsu/kprobes-extable-Identify-kprobes-insn-slots-as-kernel-text-area/20161226-233830
config: sh-r7785rp_defconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget 
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
 -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sh 

All errors (new ones prefixed by >>):

   kernel/built-in.o: In function `init_kernel_text':
>> kernel/extable.c:64: undefined reference to `__is_insn_slot_addr'
>> kernel/extable.c:64: undefined reference to `kprobe_insn_slots'
   kernel/built-in.o: In function `kernel_text_address':
   kernel/extable.c:134: undefined reference to `__is_insn_slot_addr'
   kernel/extable.c:134: undefined reference to `kprobe_insn_slots'

vim +64 kernel/extable.c

^1da177e Linus Torvalds 2005-04-16  58                  e = 
search_module_extables(addr);
^1da177e Linus Torvalds 2005-04-16  59          return e;
^1da177e Linus Torvalds 2005-04-16  60  }
^1da177e Linus Torvalds 2005-04-16  61  
4a44bac1 Ingo Molnar    2009-03-19  62  static inline int 
init_kernel_text(unsigned long addr)
4a44bac1 Ingo Molnar    2009-03-19  63  {
4a44bac1 Ingo Molnar    2009-03-19 @64          if (addr >= (unsigned 
long)_sinittext &&
5ecbe3c3 Helge Deller   2013-11-28  65              addr < (unsigned 
long)_einittext)
4a44bac1 Ingo Molnar    2009-03-19  66                  return 1;
4a44bac1 Ingo Molnar    2009-03-19  67          return 0;

:::::: The code at line 64 was first introduced by commit
:::::: 4a44bac1f98223ed77e47bf3b42fcfd10cddd85f symbols, stacktrace: look up 
init symbols after module symbols

:::::: TO: Ingo Molnar <mi...@elte.hu>
:::::: CC: Ingo Molnar <mi...@elte.hu>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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