mirror of https://gitee.com/openkylin/linux.git
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#ifndef __ASM_COMPAT_SIGNAL_H
|
|
#define __ASM_COMPAT_SIGNAL_H
|
|
|
|
#include <linux/bug.h>
|
|
#include <linux/compat.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#include <asm/signal.h>
|
|
#include <asm/siginfo.h>
|
|
|
|
#include <asm/uaccess.h>
|
|
|
|
static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
|
|
const sigset_t *s)
|
|
{
|
|
int err;
|
|
|
|
BUG_ON(sizeof(*d) != sizeof(*s));
|
|
BUG_ON(_NSIG_WORDS != 2);
|
|
|
|
err = __put_user(s->sig[0], &d->sig[0]);
|
|
err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
|
|
err |= __put_user(s->sig[1], &d->sig[2]);
|
|
err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
|
|
|
|
return err;
|
|
}
|
|
|
|
static inline int __copy_conv_sigset_from_user(sigset_t *d,
|
|
const compat_sigset_t __user *s)
|
|
{
|
|
int err;
|
|
union sigset_u {
|
|
sigset_t s;
|
|
compat_sigset_t c;
|
|
} *u = (union sigset_u *) d;
|
|
|
|
BUG_ON(sizeof(*d) != sizeof(*s));
|
|
BUG_ON(_NSIG_WORDS != 2);
|
|
|
|
#ifdef CONFIG_CPU_BIG_ENDIAN
|
|
err = __get_user(u->c.sig[1], &s->sig[0]);
|
|
err |= __get_user(u->c.sig[0], &s->sig[1]);
|
|
err |= __get_user(u->c.sig[3], &s->sig[2]);
|
|
err |= __get_user(u->c.sig[2], &s->sig[3]);
|
|
#endif
|
|
#ifdef CONFIG_CPU_LITTLE_ENDIAN
|
|
err = __get_user(u->c.sig[0], &s->sig[0]);
|
|
err |= __get_user(u->c.sig[1], &s->sig[1]);
|
|
err |= __get_user(u->c.sig[2], &s->sig[2]);
|
|
err |= __get_user(u->c.sig[3], &s->sig[3]);
|
|
#endif
|
|
|
|
return err;
|
|
}
|
|
|
|
#endif /* __ASM_COMPAT_SIGNAL_H */
|