5016f76ea98a6f38510d3dc5a8593a1d871d4f53
[linux-2.6.git] / arch / sparc / include / asm / compat.h
1 #ifndef _ASM_SPARC64_COMPAT_H
2 #define _ASM_SPARC64_COMPAT_H
3 /*
4  * Architecture specific compatibility types
5  */
6 #include <linux/types.h>
7
8 #define COMPAT_USER_HZ          100
9 #define COMPAT_UTS_MACHINE      "sparc\0\0"
10
11 typedef u32             compat_size_t;
12 typedef s32             compat_ssize_t;
13 typedef s32             compat_time_t;
14 typedef s32             compat_clock_t;
15 typedef s32             compat_pid_t;
16 typedef u16             __compat_uid_t;
17 typedef u16             __compat_gid_t;
18 typedef u32             __compat_uid32_t;
19 typedef u32             __compat_gid32_t;
20 typedef u16             compat_mode_t;
21 typedef u32             compat_ino_t;
22 typedef u16             compat_dev_t;
23 typedef s32             compat_off_t;
24 typedef s64             compat_loff_t;
25 typedef s16             compat_nlink_t;
26 typedef u16             compat_ipc_pid_t;
27 typedef s32             compat_daddr_t;
28 typedef u32             compat_caddr_t;
29 typedef __kernel_fsid_t compat_fsid_t;
30 typedef s32             compat_key_t;
31 typedef s32             compat_timer_t;
32
33 typedef s32             compat_int_t;
34 typedef s32             compat_long_t;
35 typedef s64             compat_s64;
36 typedef u32             compat_uint_t;
37 typedef u32             compat_ulong_t;
38 typedef u64             compat_u64;
39
40 struct compat_timespec {
41         compat_time_t   tv_sec;
42         s32             tv_nsec;
43 };
44
45 struct compat_timeval {
46         compat_time_t   tv_sec;
47         s32             tv_usec;
48 };
49
50 struct compat_stat {
51         compat_dev_t    st_dev;
52         compat_ino_t    st_ino;
53         compat_mode_t   st_mode;
54         compat_nlink_t  st_nlink;
55         __compat_uid_t  st_uid;
56         __compat_gid_t  st_gid;
57         compat_dev_t    st_rdev;
58         compat_off_t    st_size;
59         compat_time_t   st_atime;
60         compat_ulong_t  st_atime_nsec;
61         compat_time_t   st_mtime;
62         compat_ulong_t  st_mtime_nsec;
63         compat_time_t   st_ctime;
64         compat_ulong_t  st_ctime_nsec;
65         compat_off_t    st_blksize;
66         compat_off_t    st_blocks;
67         u32             __unused4[2];
68 };
69
70 struct compat_stat64 {
71         unsigned long long      st_dev;
72
73         unsigned long long      st_ino;
74
75         unsigned int    st_mode;
76         unsigned int    st_nlink;
77
78         unsigned int    st_uid;
79         unsigned int    st_gid;
80
81         unsigned long long      st_rdev;
82
83         unsigned char   __pad3[8];
84
85         long long       st_size;
86         unsigned int    st_blksize;
87
88         unsigned char   __pad4[8];
89         unsigned int    st_blocks;
90
91         unsigned int    st_atime;
92         unsigned int    st_atime_nsec;
93
94         unsigned int    st_mtime;
95         unsigned int    st_mtime_nsec;
96
97         unsigned int    st_ctime;
98         unsigned int    st_ctime_nsec;
99
100         unsigned int    __unused4;
101         unsigned int    __unused5;
102 };
103
104 struct compat_flock {
105         short           l_type;
106         short           l_whence;
107         compat_off_t    l_start;
108         compat_off_t    l_len;
109         compat_pid_t    l_pid;
110         short           __unused;
111 };
112
113 #define F_GETLK64       12
114 #define F_SETLK64       13
115 #define F_SETLKW64      14
116
117 struct compat_flock64 {
118         short           l_type;
119         short           l_whence;
120         compat_loff_t   l_start;
121         compat_loff_t   l_len;
122         compat_pid_t    l_pid;
123         short           __unused;
124 };
125
126 struct compat_statfs {
127         int             f_type;
128         int             f_bsize;
129         int             f_blocks;
130         int             f_bfree;
131         int             f_bavail;
132         int             f_files;
133         int             f_ffree;
134         compat_fsid_t   f_fsid;
135         int             f_namelen;      /* SunOS ignores this field. */
136         int             f_frsize;
137         int             f_spare[5];
138 };
139
140 #define COMPAT_RLIM_INFINITY 0x7fffffff
141
142 typedef u32             compat_old_sigset_t;
143
144 #define _COMPAT_NSIG            64
145 #define _COMPAT_NSIG_BPW        32
146
147 typedef u32             compat_sigset_word;
148
149 #define COMPAT_OFF_T_MAX        0x7fffffff
150 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
151
152 /*
153  * A pointer passed in from user mode. This should not
154  * be used for syscall parameters, just declare them
155  * as pointers because the syscall entry code will have
156  * appropriately converted them already.
157  */
158 typedef u32             compat_uptr_t;
159
160 static inline void __user *compat_ptr(compat_uptr_t uptr)
161 {
162         return (void __user *)(unsigned long)uptr;
163 }
164
165 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
166 {
167         return (u32)(unsigned long)uptr;
168 }
169
170 static inline void __user *compat_alloc_user_space(long len)
171 {
172         struct pt_regs *regs = current_thread_info()->kregs;
173         unsigned long usp = regs->u_regs[UREG_I6];
174
175         if (!(test_thread_flag(TIF_32BIT)))
176                 usp += STACK_BIAS;
177         else
178                 usp &= 0xffffffffUL;
179
180         usp -= len;
181         usp &= ~0x7UL;
182
183         return (void __user *) usp;
184 }
185
186 struct compat_ipc64_perm {
187         compat_key_t key;
188         __compat_uid32_t uid;
189         __compat_gid32_t gid;
190         __compat_uid32_t cuid;
191         __compat_gid32_t cgid;
192         unsigned short __pad1;
193         compat_mode_t mode;
194         unsigned short __pad2;
195         unsigned short seq;
196         unsigned long __unused1;        /* yes they really are 64bit pads */
197         unsigned long __unused2;
198 };
199
200 struct compat_semid64_ds {
201         struct compat_ipc64_perm sem_perm;
202         unsigned int    __pad1;
203         compat_time_t   sem_otime;
204         unsigned int    __pad2;
205         compat_time_t   sem_ctime;
206         u32             sem_nsems;
207         u32             __unused1;
208         u32             __unused2;
209 };
210
211 struct compat_msqid64_ds {
212         struct compat_ipc64_perm msg_perm;
213         unsigned int    __pad1;
214         compat_time_t   msg_stime;
215         unsigned int    __pad2;
216         compat_time_t   msg_rtime;
217         unsigned int    __pad3;
218         compat_time_t   msg_ctime;
219         unsigned int    msg_cbytes;
220         unsigned int    msg_qnum;
221         unsigned int    msg_qbytes;
222         compat_pid_t    msg_lspid;
223         compat_pid_t    msg_lrpid;
224         unsigned int    __unused1;
225         unsigned int    __unused2;
226 };
227
228 struct compat_shmid64_ds {
229         struct compat_ipc64_perm shm_perm;
230         unsigned int    __pad1;
231         compat_time_t   shm_atime;
232         unsigned int    __pad2;
233         compat_time_t   shm_dtime;
234         unsigned int    __pad3;
235         compat_time_t   shm_ctime;
236         compat_size_t   shm_segsz;
237         compat_pid_t    shm_cpid;
238         compat_pid_t    shm_lpid;
239         unsigned int    shm_nattch;
240         unsigned int    __unused1;
241         unsigned int    __unused2;
242 };
243
244 static inline int is_compat_task(void)
245 {
246         return test_thread_flag(TIF_32BIT);
247 }
248
249 #endif /* _ASM_SPARC64_COMPAT_H */