ulinux/compiler_misc.h

   1 #ifndef ULINUX_COMPILER_MISC_H
   2 #define ULINUX_COMPILER_MISC_H
   3 /*
   4  * this code is protected by the GNU affero GPLv3
   5  * author:Sylvain BERTRAND
   6  */
   7 /*----------------------------------------------------------------------------*/
   8 #if __GNUC__
   9         #define unreachable __builtin_unreachable
  10         #define GCC_NOCLONE __attribute__((noclone))
  11         #define GCC_NOINLINE __attribute__((noinline))
  12 #else
  13         #define unreachable()
  14 #endif
  15 /*----------------------------------------------------------------------------*/
  16
  17 /*----------------------------------------------------------------------------*/
  18 #if __GNUC__
  19         #define PACKED __attribute__((packed))
  20 #endif
  21
  22 #ifndef PACKED
  23         #error "the compiler must support packed structure in some way"
  24 #endif
  25 /*----------------------------------------------------------------------------*/
  26 #endif