diff options
Diffstat (limited to 'sysdeps/x86_64/bits')
| -rw-r--r-- | sysdeps/x86_64/bits/select.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sysdeps/x86_64/bits/select.h b/sysdeps/x86_64/bits/select.h index c217c26..7f23cb5 100644 --- a/sysdeps/x86_64/bits/select.h +++ b/sysdeps/x86_64/bits/select.h @@ -20,13 +20,21 @@ # error "Never use <bits/select.h> directly; include <sys/select.h> instead." #endif +#include <bits/wordsize.h> + #if defined __GNUC__ && __GNUC__ >= 2 # if __WORDSIZE == 64 # define __FD_ZERO_STOS "stosq" +# define __FD_SET_BTS "btsq" +# define __FD_CLR_BTR "btrq" +# define __FD_ISSET_BT "btq" # else # define __FD_ZERO_STOS "stosl" +# define __FD_SET_BTS "btsl" +# define __FD_CLR_BTR "btrl" +# define __FD_ISSET_BT "btl" # endif # define __FD_ZERO(fdsp) \ @@ -41,19 +49,19 @@ } while (0) # define __FD_SET(fd, fdsp) \ - __asm__ __volatile__ ("btsl %1,%0" \ + __asm__ __volatile__ (__FD_SET_BTS " %1,%0" \ : "=m" (__FDS_BITS (fdsp)[__FDELT (fd)]) \ : "r" (((int) (fd)) % __NFDBITS) \ : "cc","memory") # define __FD_CLR(fd, fdsp) \ - __asm__ __volatile__ ("btrl %1,%0" \ + __asm__ __volatile__ (__FD_CLR_BTR " %1,%0" \ : "=m" (__FDS_BITS (fdsp)[__FDELT (fd)]) \ : "r" (((int) (fd)) % __NFDBITS) \ : "cc","memory") # define __FD_ISSET(fd, fdsp) \ (__extension__ \ ({register char __result; \ - __asm__ __volatile__ ("btl %1,%2 ; setcb %b0" \ + __asm__ __volatile__ (__FD_ISSET_BT " %1,%2 ; setcb %b0" \ : "=q" (__result) \ : "r" (((int) (fd)) % __NFDBITS), \ "m" (__FDS_BITS (fdsp)[__FDELT (fd)]) \ |