arch/avr32/include/asm/byteorder.h

   1 /*
   2  * AVR32 endian-conversion functions.
   3  */
   4 #ifndef __ASM_AVR32_BYTEORDER_H
   5 #define __ASM_AVR32_BYTEORDER_H
   6
   7 #include <asm/types.h>
   8 #include <linux/compiler.h>
   9
  10 #ifdef __CHECKER__
  11 extern unsigned long __builtin_bswap_32(unsigned long x);
  12 extern unsigned short __builtin_bswap_16(unsigned short x);
  13 #endif
  14
  15 /*
  16  * avr32-linux-gcc versions earlier than 4.2 improperly sign-extends
  17  * the result.
  18  */
  19 #if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  20 #define __arch__swab32(x) __builtin_bswap_32(x)
  21 #define __arch__swab16(x) __builtin_bswap_16(x)
  22 #endif
  23
  24 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
  25 # define __BYTEORDER_HAS_U64__
  26 # define __SWAB_64_THRU_32__
  27 #endif
  28
  29 #include <linux/byteorder/big_endian.h>
  30
  31 #endif /* __ASM_AVR32_BYTEORDER_H */