src/patches/suse-2.6.27.31/patches.kabi/ftrace-dummy-export

   1 From: Michal Marek <mmarek@suse.cz>
   2 Subject: Add mcount() dummy export
   3
   4 Export a stub to avoid changing kabi checksums after CONFIG_FTRACE has been
   5 disabled.
   6
   7 Signed-off-by: Michal Marek <mmarek@suse.cz>
   8 ---
   9  arch/x86/kernel/i386_ksyms_32.c  |    4 ++++
  10  arch/x86/kernel/x8664_ksyms_64.c |    4 ++++
  11  2 files changed, 8 insertions(+)
  12
  13 --- a/arch/x86/kernel/i386_ksyms_32.c
  14 +++ b/arch/x86/kernel/i386_ksyms_32.c
  15 @@ -8,6 +8,10 @@
  16  #ifdef CONFIG_FTRACE
  17  /* mcount is defined in assembly */
  18  EXPORT_SYMBOL(mcount);
  19 +#else
  20 +/* export a stub for kabi compatibility */
  21 +void mcount(void) { }
  22 +EXPORT_SYMBOL(mcount);
  23  #endif
  24
  25  /* Networking helper routines. */
  26 --- a/arch/x86/kernel/x8664_ksyms_64.c
  27 +++ b/arch/x86/kernel/x8664_ksyms_64.c
  28 @@ -15,6 +15,10 @@
  29  #ifdef CONFIG_FTRACE
  30  /* mcount is defined in assembly */
  31  EXPORT_SYMBOL(mcount);
  32 +#else
  33 +/* export a stub for kabi compatibility */
  34 +void mcount(void) { }
  35 +EXPORT_SYMBOL(mcount);
  36  #endif
  37
  38  EXPORT_SYMBOL(kernel_thread);