d0f453c5adfc6dd04edc3353ddd61750d5cc322e
[linux-3.10.git] / include / asm-x86_64 / compat.h
1 #ifndef _ASM_X86_64_COMPAT_H
2 #define _ASM_X86_64_COMPAT_H
3
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 u16             compat_uid_t;
18 typedef u16             compat_gid_t;
19 typedef u32             compat_uid32_t;
20 typedef u32             compat_gid32_t;
21 typedef u16             compat_mode_t;
22 typedef u32             compat_ino_t;
23 typedef u16             compat_dev_t;
24 typedef s32             compat_off_t;
25 typedef s64             compat_loff_t;
26 typedef u16             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_timer_t;
32 typedef s32             compat_key_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         u16             __pad1;
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         u16             __pad2;
59         u32             st_size;
60         u32             st_blksize;
61         u32             st_blocks;
62         u32             st_atime;
63         u32             st_atime_nsec;
64         u32             st_mtime;
65         u32             st_mtime_nsec;
66         u32             st_ctime;
67         u32             st_ctime_nsec;
68         u32             __unused4;
69         u32             __unused5;
70 };
71
72 struct compat_flock {
73         short           l_type;
74         short           l_whence;
75         compat_off_t    l_start;
76         compat_off_t    l_len;
77         compat_pid_t    l_pid;
78 };
79
80 #define F_GETLK64       12      /*  using 'struct flock64' */
81 #define F_SETLK64       13
82 #define F_SETLKW64      14
83
84 /*
85  * IA32 uses 4 byte alignment for 64 bit quantities,
86  * so we need to pack this structure.
87  */
88 struct compat_flock64 {
89         short           l_type;
90         short           l_whence;
91         compat_loff_t   l_start;
92         compat_loff_t   l_len;
93         compat_pid_t    l_pid;
94 } __attribute__((packed));
95
96 struct compat_statfs {
97         int             f_type;
98         int             f_bsize;
99         int             f_blocks;
100         int             f_bfree;
101         int             f_bavail;
102         int             f_files;
103         int             f_ffree;
104         compat_fsid_t   f_fsid;
105         int             f_namelen;      /* SunOS ignores this field. */
106         int             f_frsize;
107         int             f_spare[5];
108 };
109
110 #define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
111 #define COMPAT_RLIM_INFINITY            0xffffffff
112
113 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
114
115 #define _COMPAT_NSIG            64
116 #define _COMPAT_NSIG_BPW        32
117
118 typedef u32               compat_sigset_word;
119
120 #define COMPAT_OFF_T_MAX        0x7fffffff
121 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
122
123 struct compat_ipc64_perm {
124         compat_key_t key;
125         compat_uid32_t uid;
126         compat_gid32_t gid;
127         compat_uid32_t cuid;
128         compat_gid32_t cgid;
129         unsigned short mode;
130         unsigned short __pad1;
131         unsigned short seq;
132         unsigned short __pad2;
133         compat_ulong_t unused1;
134         compat_ulong_t unused2;
135 };
136
137 struct compat_semid64_ds {
138         struct compat_ipc64_perm sem_perm;
139         compat_time_t  sem_otime;
140         compat_ulong_t __unused1;
141         compat_time_t  sem_ctime;
142         compat_ulong_t __unused2;
143         compat_ulong_t sem_nsems;
144         compat_ulong_t __unused3;
145         compat_ulong_t __unused4;
146 };
147
148 struct compat_msqid64_ds {
149         struct compat_ipc64_perm msg_perm;
150         compat_time_t  msg_stime;
151         compat_ulong_t __unused1;
152         compat_time_t  msg_rtime;
153         compat_ulong_t __unused2;
154         compat_time_t  msg_ctime;
155         compat_ulong_t __unused3;
156         compat_ulong_t msg_cbytes;
157         compat_ulong_t msg_qnum;
158         compat_ulong_t msg_qbytes;
159         compat_pid_t   msg_lspid;
160         compat_pid_t   msg_lrpid;
161         compat_ulong_t __unused4;
162         compat_ulong_t __unused5;
163 };
164
165 struct compat_shmid64_ds {
166         struct compat_ipc64_perm shm_perm;
167         compat_size_t  shm_segsz;
168         compat_time_t  shm_atime;
169         compat_ulong_t __unused1;
170         compat_time_t  shm_dtime;
171         compat_ulong_t __unused2;
172         compat_time_t  shm_ctime;
173         compat_ulong_t __unused3;
174         compat_pid_t   shm_cpid;
175         compat_pid_t   shm_lpid;
176         compat_ulong_t shm_nattch;
177         compat_ulong_t __unused4;
178         compat_ulong_t __unused5;
179 };
180
181 /*
182  * A pointer passed in from user mode. This should not
183  * be used for syscall parameters, just declare them
184  * as pointers because the syscall entry code will have
185  * appropriately comverted them already.
186  */
187 typedef u32             compat_uptr_t;
188
189 static inline void __user *compat_ptr(compat_uptr_t uptr)
190 {
191         return (void __user *)(unsigned long)uptr;
192 }
193
194 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
195 {
196         return (u32)(unsigned long)uptr;
197 }
198
199 static __inline__ void __user *compat_alloc_user_space(long len)
200 {
201         struct pt_regs *regs = (void *)current->thread.rsp0 - sizeof(struct pt_regs); 
202         return (void __user *)regs->rsp - len; 
203 }
204
205 #endif /* _ASM_X86_64_COMPAT_H */