diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/sysmacros.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/sysmacros.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/sysmacros.h b/sysdeps/unix/sysv/linux/sys/sysmacros.h index 63c1343284..35760e5e06 100644 --- a/sysdeps/unix/sysv/linux/sys/sysmacros.h +++ b/sysdeps/unix/sysv/linux/sys/sysmacros.h @@ -30,10 +30,20 @@ # define makedev(major, minor) ((((unsigned int) (major)) << 8) \ | ((unsigned int) (minor))) #else -# define major(dev) (((dev).__val[0] >> 8) & 0xff) -# define minor(dev) ((dev).__val[0] & 0xff) -# define makedev(major, minor) { ((((unsigned int) (major)) << 8) \ - | ((unsigned int) (minor))), 0 } +/* We need to know the word order here. This assumes that the word order + is consistent with the byte order. */ +# include <endian.h> +# if __BYTE_ORDER == __BIG_ENDIAN +# define major(dev) (((dev).__val[1] >> 8) & 0xff) +# define minor(dev) ((dev).__val[1] & 0xff) +# define makedev(major, minor) { 0, ((((unsigned int) (major)) << 8) \ + | ((unsigned int) (minor))) } +# else +# define major(dev) (((dev).__val[0] >> 8) & 0xff) +# define minor(dev) ((dev).__val[0] & 0xff) +# define makedev(major, minor) { ((((unsigned int) (major)) << 8) \ + | ((unsigned int) (minor))), 0 } +# endif #endif #endif /* sys/sysmacros.h */ |