asm-*/compat.h: fix typo in comment
[linux-2.6.git] / include / asm-mips / compat.h
1 #ifndef _ASM_COMPAT_H
2 #define _ASM_COMPAT_H
3 /*
4  * Architecture specific compatibility types
5  */
6 #include <linux/types.h>
7 #include <asm/page.h>
8 #include <asm/ptrace.h>
9
10 #define COMPAT_USER_HZ  100
11
12 typedef u32             compat_size_t;
13 typedef s32             compat_ssize_t;
14 typedef s32             compat_time_t;
15 typedef s32             compat_clock_t;
16 typedef s32             compat_suseconds_t;
17
18 typedef s32             compat_pid_t;
19 typedef s32             __compat_uid_t;
20 typedef s32             __compat_gid_t;
21 typedef __compat_uid_t  __compat_uid32_t;
22 typedef __compat_gid_t  __compat_gid32_t;
23 typedef u32             compat_mode_t;
24 typedef u32             compat_ino_t;
25 typedef u32             compat_dev_t;
26 typedef s32             compat_off_t;
27 typedef s64             compat_loff_t;
28 typedef u32             compat_nlink_t;
29 typedef s32             compat_ipc_pid_t;
30 typedef s32             compat_daddr_t;
31 typedef s32             compat_caddr_t;
32 typedef struct {
33         s32     val[2];
34 } compat_fsid_t;
35 typedef s32             compat_timer_t;
36 typedef s32             compat_key_t;
37
38 typedef s32             compat_int_t;
39 typedef s32             compat_long_t;
40 typedef s64             compat_s64;
41 typedef u32             compat_uint_t;
42 typedef u32             compat_ulong_t;
43 typedef u64             compat_u64;
44
45 struct compat_timespec {
46         compat_time_t   tv_sec;
47         s32             tv_nsec;
48 };
49
50 struct compat_timeval {
51         compat_time_t   tv_sec;
52         s32             tv_usec;
53 };
54
55 struct compat_stat {
56         compat_dev_t    st_dev;
57         s32             st_pad1[3];
58         compat_ino_t    st_ino;
59         compat_mode_t   st_mode;
60         compat_nlink_t  st_nlink;
61         __compat_uid_t  st_uid;
62         __compat_gid_t  st_gid;
63         compat_dev_t    st_rdev;
64         s32             st_pad2[2];
65         compat_off_t    st_size;
66         s32             st_pad3;
67         compat_time_t   st_atime;
68         s32             st_atime_nsec;
69         compat_time_t   st_mtime;
70         s32             st_mtime_nsec;
71         compat_time_t   st_ctime;
72         s32             st_ctime_nsec;
73         s32             st_blksize;
74         s32             st_blocks;
75         s32             st_pad4[14];
76 };
77
78 struct compat_flock {
79         short           l_type;
80         short           l_whence;
81         compat_off_t    l_start;
82         compat_off_t    l_len;
83         s32             l_sysid;
84         compat_pid_t    l_pid;
85         short           __unused;
86         s32             pad[4];
87 };
88
89 #define F_GETLK64       33
90 #define F_SETLK64       34
91 #define F_SETLKW64      35
92
93 struct compat_flock64 {
94         short           l_type;
95         short           l_whence;
96         compat_loff_t   l_start;
97         compat_loff_t   l_len;
98         compat_pid_t    l_pid;
99 };
100
101 struct compat_statfs {
102         int             f_type;
103         int             f_bsize;
104         int             f_frsize;
105         int             f_blocks;
106         int             f_bfree;
107         int             f_files;
108         int             f_ffree;
109         int             f_bavail;
110         compat_fsid_t   f_fsid;
111         int             f_namelen;
112         int             f_spare[6];
113 };
114
115 #define COMPAT_RLIM_INFINITY    0x7fffffffUL
116
117 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
118
119 #define _COMPAT_NSIG            128             /* Don't ask !$@#% ...  */
120 #define _COMPAT_NSIG_BPW        32
121
122 typedef u32             compat_sigset_word;
123
124 #define COMPAT_OFF_T_MAX        0x7fffffff
125 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
126
127 /*
128  * A pointer passed in from user mode. This should not
129  * be used for syscall parameters, just declare them
130  * as pointers because the syscall entry code will have
131  * appropriately converted them already.
132  */
133 typedef u32             compat_uptr_t;
134
135 static inline void __user *compat_ptr(compat_uptr_t uptr)
136 {
137         /* cast to a __user pointer via "unsigned long" makes sparse happy */
138         return (void __user *)(unsigned long)(long)uptr;
139 }
140
141 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
142 {
143         return (u32)(unsigned long)uptr;
144 }
145
146 static inline void __user *compat_alloc_user_space(long len)
147 {
148         struct pt_regs *regs = (struct pt_regs *)
149                 ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
150
151         return (void __user *) (regs->regs[29] - len);
152 }
153
154 struct compat_ipc64_perm {
155         compat_key_t key;
156         __compat_uid32_t uid;
157         __compat_gid32_t gid;
158         __compat_uid32_t cuid;
159         __compat_gid32_t cgid;
160         compat_mode_t mode;
161         unsigned short seq;
162         unsigned short __pad2;
163         compat_ulong_t __unused1;
164         compat_ulong_t __unused2;
165 };
166
167 struct compat_semid64_ds {
168         struct compat_ipc64_perm sem_perm;
169         compat_time_t   sem_otime;
170         compat_time_t   sem_ctime;
171         compat_ulong_t  sem_nsems;
172         compat_ulong_t  __unused1;
173         compat_ulong_t  __unused2;
174 };
175
176 struct compat_msqid64_ds {
177         struct compat_ipc64_perm msg_perm;
178 #ifndef CONFIG_CPU_LITTLE_ENDIAN
179         compat_ulong_t  __unused1;
180 #endif
181         compat_time_t   msg_stime;
182 #ifdef CONFIG_CPU_LITTLE_ENDIAN
183         compat_ulong_t  __unused1;
184 #endif
185 #ifndef CONFIG_CPU_LITTLE_ENDIAN
186         compat_ulong_t  __unused2;
187 #endif
188         compat_time_t   msg_rtime;
189 #ifdef CONFIG_CPU_LITTLE_ENDIAN
190         compat_ulong_t  __unused2;
191 #endif
192 #ifndef CONFIG_CPU_LITTLE_ENDIAN
193         compat_ulong_t  __unused3;
194 #endif
195         compat_time_t   msg_ctime;
196 #ifdef CONFIG_CPU_LITTLE_ENDIAN
197         compat_ulong_t  __unused3;
198 #endif
199         compat_ulong_t  msg_cbytes;
200         compat_ulong_t  msg_qnum;
201         compat_ulong_t  msg_qbytes;
202         compat_pid_t    msg_lspid;
203         compat_pid_t    msg_lrpid;
204         compat_ulong_t  __unused4;
205         compat_ulong_t  __unused5;
206 };
207
208 struct compat_shmid64_ds {
209         struct compat_ipc64_perm shm_perm;
210         compat_size_t   shm_segsz;
211         compat_time_t   shm_atime;
212         compat_time_t   shm_dtime;
213         compat_time_t   shm_ctime;
214         compat_pid_t    shm_cpid;
215         compat_pid_t    shm_lpid;
216         compat_ulong_t  shm_nattch;
217         compat_ulong_t  __unused1;
218         compat_ulong_t  __unused2;
219 };
220
221 #endif /* _ASM_COMPAT_H */