projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 431dc804 RB |
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 | ||
| 151fd6ac RB |
8 | #include <asm/signal.h> |
| 9 | #include <asm/siginfo.h> | |
| 10 | ||
| 7c0f6ba6 | 11 | #include <linux/uaccess.h> |
| 4c156994 | 12 | |
| 431dc804 RB |
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 | ||
| 70342287 | 21 | err = __put_user(s->sig[0], &d->sig[0]); |
| 431dc804 | 22 | err |= __put_user(s->sig[0] >> 32, &d->sig[1]); |
| 70342287 | 23 | err |= __put_user(s->sig[1], &d->sig[2]); |
| 431dc804 RB |
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 | ||
| 431dc804 RB |
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 */ |