• Ingo Molnar's avatar
    fix "ftrace: store mcount address in rec->ip" · 760378e1
    Ingo Molnar authored
    Alexander Beregalov reported this build failure:
    
    $ make CROSS_COMPILE=sparc64-unknown-linux-gnu- image modules && sudo
    make modules_install
      CHK     include/linux/version.h
      CHK     include/linux/utsrelease.h
      CALL    scripts/checksyscalls.sh
      CHK     include/linux/compile.h
    dnsdomainname: Unknown host
      CC      arch/sparc64/kernel/sparc64_ksyms.o
    arch/sparc64/kernel/sparc64_ksyms.c:116: error: '_mcount' undeclared
    here (not in a function)
    cc1: warnings being treated as errors
    arch/sparc64/kernel/sparc64_ksyms.c:116: error: type defaults to 'int'
    in declaration of '_mcount'
    
    And bisected it back to:
    
    | commit 395a59d0
    | Author: Abhishek Sagar <sagar.abhishek@gmail.com>
    | Date:   Sat Jun 21 23:47:27 2008 +0530
    |
    |     ftrace: store mcount address in rec->ip
    
    the mcount prototype is only available under CONFIG_FTRACE,
    extend it to CONFIG_MCOUNT as well.
    Reported-and-bisected-by: default avatarAlexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    760378e1
sparc64_ksyms.c 8.39 KB