1 #ifndef __ASM_COMPAT_SIGNAL_H 2 #define __ASM_COMPAT_SIGNAL_H 3 4 #include <linux/bug.h> 5 #include <linux/compat.h> 6 #include <linux/compiler.h> 7 8 #include <asm/signal.h> 9 #include <asm/siginfo.h> 10 11 #include <asm/uaccess.h> 12 13 static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d, 14 const sigset_t *s) 15 { 16 int err; 17 18 BUG_ON(sizeof(*d) != sizeof(*s)); 19 BUG_ON(_NSIG_WORDS != 2); 20 21 err = __put_user(s->sig[0], &d->sig[0]); 22 err |= __put_user(s->sig[0] >> 32, &d->sig[1]); 23 err |= __put_user(s->sig[1], &d->sig[2]); 24 err |= __put_user(s->sig[1] >> 32, &d->sig[3]); 25 26 return err; 27 } 28 29 static inline int __copy_conv_sigset_from_user(sigset_t *d, 30 const compat_sigset_t __user *s) 31 { 32 int err; 33 union sigset_u { 34 sigset_t s; 35 compat_sigset_t c; 36 } *u = (union sigset_u *) d; 37 38 BUG_ON(sizeof(*d) != sizeof(*s)); 39 BUG_ON(_NSIG_WORDS != 2); 40 41 #ifdef CONFIG_CPU_BIG_ENDIAN 42 err = __get_user(u->c.sig[1], &s->sig[0]); 43 err |= __get_user(u->c.sig[0], &s->sig[1]); 44 err |= __get_user(u->c.sig[3], &s->sig[2]); 45 err |= __get_user(u->c.sig[2], &s->sig[3]); 46 #endif 47 #ifdef CONFIG_CPU_LITTLE_ENDIAN 48 err = __get_user(u->c.sig[0], &s->sig[0]); 49 err |= __get_user(u->c.sig[1], &s->sig[1]); 50 err |= __get_user(u->c.sig[2], &s->sig[2]); 51 err |= __get_user(u->c.sig[3], &s->sig[3]); 52 #endif 53 54 return err; 55 } 56 57 #endif /* __ASM_COMPAT_SIGNAL_H */ 58