share/compiler.h

   1 #define __printf(a,b)                   __attribute__((format(printf,a,b)))
   2
   3 #define likely(x)      __builtin_expect(!!(x), 1)
   4 #define unlikely(x)    __builtin_expect(!!(x), 0)
   5
   6 #define notrace __attribute__((no_instrument_function))