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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#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3)
14
15typedef struct compat_siginfo {
16 int si_signo;
17 int si_code;
18 int si_errno;
19
20 union {
21 int _pad[SI_PAD_SIZE32];
22
23 /* kill() */
24 struct {
25 compat_pid_t _pid; /* sender's pid */
26 compat_uid_t _uid; /* sender's uid */
27 } _kill;
28
29 /* SIGCHLD */
30 struct {
31 compat_pid_t _pid; /* which child */
32 compat_uid_t _uid; /* sender's uid */
33 int _status; /* exit code */
34 compat_clock_t _utime;
35 compat_clock_t _stime;
36 } _sigchld;
37
38 /* IRIX SIGCHLD */
39 struct {
40 compat_pid_t _pid; /* which child */
41 compat_clock_t _utime;
42 int _status; /* exit code */
43 compat_clock_t _stime;
44 } _irix_sigchld;
45
46 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
47 struct {
48 s32 _addr; /* faulting insn/memory ref. */
49 } _sigfault;
50
51 /* SIGPOLL, SIGXFSZ (To do ...) */
52 struct {
53 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
54 int _fd;
55 } _sigpoll;
56
57 /* POSIX.1b timers */
58 struct {
59 timer_t _tid; /* timer id */
60 int _overrun; /* overrun count */
61 compat_sigval_t _sigval;/* same as below */
62 int _sys_private; /* not to be passed to user */
63 } _timer;
64
65 /* POSIX.1b signals */
66 struct {
67 compat_pid_t _pid; /* sender's pid */
68 compat_uid_t _uid; /* sender's uid */
69 compat_sigval_t _sigval;
70 } _rt;
71
72 } _sifields;
73} compat_siginfo_t;
74
75static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
76 const sigset_t *s)
77{
78 int err;
79
80 BUG_ON(sizeof(*d) != sizeof(*s));
81 BUG_ON(_NSIG_WORDS != 2);
82
83 err = __put_user(s->sig[0], &d->sig[0]);
84 err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
85 err |= __put_user(s->sig[1], &d->sig[2]);
86 err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
87
88 return err;
89}
90
91static inline int __copy_conv_sigset_from_user(sigset_t *d,
92 const compat_sigset_t __user *s)
93{
94 int err;
95 union sigset_u {
96 sigset_t s;
97 compat_sigset_t c;
98 } *u = (union sigset_u *) d;
99
100 BUG_ON(sizeof(*d) != sizeof(*s));
101 BUG_ON(_NSIG_WORDS != 2);
102
103#ifdef CONFIG_CPU_BIG_ENDIAN
104 err = __get_user(u->c.sig[1], &s->sig[0]);
105 err |= __get_user(u->c.sig[0], &s->sig[1]);
106 err |= __get_user(u->c.sig[3], &s->sig[2]);
107 err |= __get_user(u->c.sig[2], &s->sig[3]);
108#endif
109#ifdef CONFIG_CPU_LITTLE_ENDIAN
110 err = __get_user(u->c.sig[0], &s->sig[0]);
111 err |= __get_user(u->c.sig[1], &s->sig[1]);
112 err |= __get_user(u->c.sig[2], &s->sig[2]);
113 err |= __get_user(u->c.sig[3], &s->sig[3]);
114#endif
115
116 return err;
117}
118
119#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 */