1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_COMPAT_SIGNAL_H
 3#define __ASM_COMPAT_SIGNAL_H
 4
 5#include <linux/bug.h>
 6#include <linux/compat.h>
 7#include <linux/compiler.h>
 8
 9#include <asm/signal.h>
10#include <asm/siginfo.h>
11
12#include <linux/uaccess.h>
13
14static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
15	const sigset_t *s)
16{
17	BUILD_BUG_ON(sizeof(*d) != sizeof(*s));
18	BUILD_BUG_ON(_NSIG_WORDS != 2);
19
20	return put_compat_sigset(d, s, sizeof(*d));
 
 
 
 
 
 
 
 
21}
22
23static inline int __copy_conv_sigset_from_user(sigset_t *d,
24	const compat_sigset_t __user *s)
25{
26	return get_compat_sigset(d, s);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
27}
28
29#endif /* __ASM_COMPAT_SIGNAL_H */

 
 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 <linux/uaccess.h>
12
13static 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
29static 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 */