[PATCH] powerpc signal __user annotations
[linux-2.6.git] / include / asm-powerpc / compat.h
1 #ifndef _ASM_POWERPC_COMPAT_H
2 #define _ASM_POWERPC_COMPAT_H
3 #ifdef __KERNEL__
4 /*
5  * Architecture specific compatibility types
6  */
7 #include <linux/types.h>
8 #include <linux/sched.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_pid_t;
17 typedef u32             __compat_uid_t;
18 typedef u32             __compat_gid_t;
19 typedef u32             __compat_uid32_t;
20 typedef u32             __compat_gid32_t;
21 typedef u32             compat_mode_t;
22 typedef u32             compat_ino_t;
23 typedef u32             compat_dev_t;
24 typedef s32             compat_off_t;
25 typedef s64             compat_loff_t;
26 typedef s16             compat_nlink_t;
27 typedef u16             compat_ipc_pid_t;
28 typedef s32             compat_daddr_t;
29 typedef u32             compat_caddr_t;
30 typedef __kernel_fsid_t compat_fsid_t;
31 typedef s32             compat_key_t;
32 typedef s32             compat_timer_t;
33
34 typedef s32             compat_int_t;
35 typedef s32             compat_long_t;
36 typedef u32             compat_uint_t;
37 typedef u32             compat_ulong_t;
38
39 struct compat_timespec {
40         compat_time_t   tv_sec;
41         s32             tv_nsec;
42 };
43
44 struct compat_timeval {
45         compat_time_t   tv_sec;
46         s32             tv_usec;
47 };
48
49 struct compat_stat {
50         compat_dev_t    st_dev;
51         compat_ino_t    st_ino;
52         compat_mode_t   st_mode;
53         compat_nlink_t  st_nlink;
54         __compat_uid32_t        st_uid;
55         __compat_gid32_t        st_gid;
56         compat_dev_t    st_rdev;
57         compat_off_t    st_size;
58         compat_off_t    st_blksize;
59         compat_off_t    st_blocks;
60         compat_time_t   st_atime;
61         u32             st_atime_nsec;
62         compat_time_t   st_mtime;
63         u32             st_mtime_nsec;
64         compat_time_t   st_ctime;
65         u32             st_ctime_nsec;
66         u32             __unused4[2];
67 };
68
69 struct compat_flock {
70         short           l_type;
71         short           l_whence;
72         compat_off_t    l_start;
73         compat_off_t    l_len;
74         compat_pid_t    l_pid;
75 };
76
77 #define F_GETLK64       12      /*  using 'struct flock64' */
78 #define F_SETLK64       13
79 #define F_SETLKW64      14
80
81 struct compat_flock64 {
82         short           l_type;
83         short           l_whence;
84         compat_loff_t   l_start;
85         compat_loff_t   l_len;
86         compat_pid_t    l_pid;
87 };
88
89 struct compat_statfs {
90         int             f_type;
91         int             f_bsize;
92         int             f_blocks;
93         int             f_bfree;
94         int             f_bavail;
95         int             f_files;
96         int             f_ffree;
97         compat_fsid_t   f_fsid;
98         int             f_namelen;      /* SunOS ignores this field. */
99         int             f_frsize;
100         int             f_spare[5];
101 };
102
103 #define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
104 #define COMPAT_RLIM_INFINITY            0xffffffff
105
106 typedef u32             compat_old_sigset_t;
107
108 #define _COMPAT_NSIG            64
109 #define _COMPAT_NSIG_BPW        32
110
111 typedef u32             compat_sigset_word;
112
113 #define COMPAT_OFF_T_MAX        0x7fffffff
114 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
115
116 /*
117  * A pointer passed in from user mode. This should not
118  * be used for syscall parameters, just declare them
119  * as pointers because the syscall entry code will have
120  * appropriately comverted them already.
121  */
122 typedef u32             compat_uptr_t;
123
124 static inline void __user *compat_ptr(compat_uptr_t uptr)
125 {
126         return (void __user *)(unsigned long)uptr;
127 }
128
129 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
130 {
131         return (u32)(unsigned long)uptr;
132 }
133
134 static inline void __user *compat_alloc_user_space(long len)
135 {
136         struct pt_regs *regs = current->thread.regs;
137         unsigned long usp = regs->gpr[1];
138
139         /*
140          * We cant access below the stack pointer in the 32bit ABI and
141          * can access 288 bytes in the 64bit ABI
142          */
143         if (!(test_thread_flag(TIF_32BIT)))
144                 usp -= 288;
145
146         return (void __user *) (usp - len);
147 }
148
149 /*
150  * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
151  * it we may as well define it.
152  */
153 struct compat_ipc64_perm {
154         compat_key_t key;
155         __compat_uid_t uid;
156         __compat_gid_t gid;
157         __compat_uid_t cuid;
158         __compat_gid_t cgid;
159         compat_mode_t mode;
160         unsigned int seq;
161         unsigned int __pad2;
162         unsigned long __unused1;        /* yes they really are 64bit pads */
163         unsigned long __unused2;
164 };
165
166 struct compat_semid64_ds {
167         struct compat_ipc64_perm sem_perm;
168         unsigned int __unused1;
169         compat_time_t sem_otime;
170         unsigned int __unused2;
171         compat_time_t sem_ctime;
172         compat_ulong_t sem_nsems;
173         compat_ulong_t __unused3;
174         compat_ulong_t __unused4;
175 };
176
177 struct compat_msqid64_ds {
178         struct compat_ipc64_perm msg_perm;
179         unsigned int __unused1;
180         compat_time_t msg_stime;
181         unsigned int __unused2;
182         compat_time_t msg_rtime;
183         unsigned int __unused3;
184         compat_time_t msg_ctime;
185         compat_ulong_t msg_cbytes;
186         compat_ulong_t msg_qnum;
187         compat_ulong_t msg_qbytes;
188         compat_pid_t msg_lspid;
189         compat_pid_t msg_lrpid;
190         compat_ulong_t __unused4;
191         compat_ulong_t __unused5;
192 };
193
194 struct compat_shmid64_ds {
195         struct compat_ipc64_perm shm_perm;
196         unsigned int __unused1;
197         compat_time_t shm_atime;
198         unsigned int __unused2;
199         compat_time_t shm_dtime;
200         unsigned int __unused3;
201         compat_time_t shm_ctime;
202         unsigned int __unused4;
203         compat_size_t shm_segsz;
204         compat_pid_t shm_cpid;
205         compat_pid_t shm_lpid;
206         compat_ulong_t shm_nattch;
207         compat_ulong_t __unused5;
208         compat_ulong_t __unused6;
209 };
210
211 #endif /* __KERNEL__ */
212 #endif /* _ASM_POWERPC_COMPAT_H */