config/kernel-trim-unused-symbols.m4

   1 dnl #
   2 dnl # config trim unused symbols,
   3 dnl # Verify the kernel has CONFIG_TRIM_UNUSED_KSYMS DISABLED.
   4 dnl #
   5 AC_DEFUN([SPL_AC_CONFIG_TRIM_UNUSED_KSYMS], [
   6         AC_MSG_CHECKING([whether CONFIG_TRIM_UNUSED_KSYM is disabled])
   7         SPL_LINUX_TRY_COMPILE([
   8                 #if defined(CONFIG_TRIM_UNUSED_KSYMS)
   9                 #error CONFIG_TRIM_UNUSED_KSYMS not defined
  10                 #endif
  11         ],[ ],[
  12                 AC_MSG_RESULT([yes])
  13         ],[
  14                 AC_MSG_RESULT([no])
  15                 AC_MSG_ERROR([
  16         *** This kernel has unused symbols trimming enabled, please disable.
  17         *** Rebuild the kernel with CONFIG_TRIM_UNUSED_KSYMS=n set.])
  18         ])
  19 ])