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1da177e4 LT |
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; | |
202e5979 SR |
17 | typedef u16 __compat_uid_t; |
18 | typedef u16 __compat_gid_t; | |
19 | typedef u32 __compat_uid32_t; | |
20 | typedef u32 __compat_gid32_t; | |
1da177e4 LT |
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; | |
4b777587 | 36 | typedef s64 __attribute__((aligned(4))) compat_s64; |
1da177e4 LT |
37 | typedef u32 compat_uint_t; |
38 | typedef u32 compat_ulong_t; | |
4b777587 | 39 | typedef u64 __attribute__((aligned(4))) compat_u64; |
1da177e4 LT |
40 | |
41 | struct compat_timespec { | |
42 | compat_time_t tv_sec; | |
43 | s32 tv_nsec; | |
44 | }; | |
45 | ||
46 | struct compat_timeval { | |
47 | compat_time_t tv_sec; | |
48 | s32 tv_usec; | |
49 | }; | |
50 | ||
51 | struct compat_stat { | |
52 | compat_dev_t st_dev; | |
53 | u16 __pad1; | |
54 | compat_ino_t st_ino; | |
55 | compat_mode_t st_mode; | |
56 | compat_nlink_t st_nlink; | |
202e5979 SR |
57 | __compat_uid_t st_uid; |
58 | __compat_gid_t st_gid; | |
1da177e4 LT |
59 | compat_dev_t st_rdev; |
60 | u16 __pad2; | |
61 | u32 st_size; | |
62 | u32 st_blksize; | |
63 | u32 st_blocks; | |
64 | u32 st_atime; | |
65 | u32 st_atime_nsec; | |
66 | u32 st_mtime; | |
67 | u32 st_mtime_nsec; | |
68 | u32 st_ctime; | |
69 | u32 st_ctime_nsec; | |
70 | u32 __unused4; | |
71 | u32 __unused5; | |
72 | }; | |
73 | ||
74 | struct compat_flock { | |
75 | short l_type; | |
76 | short l_whence; | |
77 | compat_off_t l_start; | |
78 | compat_off_t l_len; | |
79 | compat_pid_t l_pid; | |
80 | }; | |
81 | ||
82 | #define F_GETLK64 12 /* using 'struct flock64' */ | |
83 | #define F_SETLK64 13 | |
84 | #define F_SETLKW64 14 | |
85 | ||
86 | /* | |
87 | * IA32 uses 4 byte alignment for 64 bit quantities, | |
88 | * so we need to pack this structure. | |
89 | */ | |
90 | struct compat_flock64 { | |
91 | short l_type; | |
92 | short l_whence; | |
93 | compat_loff_t l_start; | |
94 | compat_loff_t l_len; | |
95 | compat_pid_t l_pid; | |
96 | } __attribute__((packed)); | |
97 | ||
98 | struct compat_statfs { | |
99 | int f_type; | |
100 | int f_bsize; | |
101 | int f_blocks; | |
102 | int f_bfree; | |
103 | int f_bavail; | |
104 | int f_files; | |
105 | int f_ffree; | |
106 | compat_fsid_t f_fsid; | |
107 | int f_namelen; /* SunOS ignores this field. */ | |
108 | int f_frsize; | |
109 | int f_spare[5]; | |
110 | }; | |
111 | ||
112 | #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff | |
113 | #define COMPAT_RLIM_INFINITY 0xffffffff | |
114 | ||
115 | typedef u32 compat_old_sigset_t; /* at least 32 bits */ | |
116 | ||
117 | #define _COMPAT_NSIG 64 | |
118 | #define _COMPAT_NSIG_BPW 32 | |
119 | ||
120 | typedef u32 compat_sigset_word; | |
121 | ||
122 | #define COMPAT_OFF_T_MAX 0x7fffffff | |
123 | #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL | |
124 | ||
125 | struct compat_ipc64_perm { | |
126 | compat_key_t key; | |
202e5979 SR |
127 | __compat_uid32_t uid; |
128 | __compat_gid32_t gid; | |
129 | __compat_uid32_t cuid; | |
130 | __compat_gid32_t cgid; | |
1da177e4 LT |
131 | unsigned short mode; |
132 | unsigned short __pad1; | |
133 | unsigned short seq; | |
134 | unsigned short __pad2; | |
135 | compat_ulong_t unused1; | |
136 | compat_ulong_t unused2; | |
137 | }; | |
138 | ||
139 | struct compat_semid64_ds { | |
140 | struct compat_ipc64_perm sem_perm; | |
141 | compat_time_t sem_otime; | |
142 | compat_ulong_t __unused1; | |
143 | compat_time_t sem_ctime; | |
144 | compat_ulong_t __unused2; | |
145 | compat_ulong_t sem_nsems; | |
146 | compat_ulong_t __unused3; | |
147 | compat_ulong_t __unused4; | |
148 | }; | |
149 | ||
150 | struct compat_msqid64_ds { | |
151 | struct compat_ipc64_perm msg_perm; | |
152 | compat_time_t msg_stime; | |
153 | compat_ulong_t __unused1; | |
154 | compat_time_t msg_rtime; | |
155 | compat_ulong_t __unused2; | |
156 | compat_time_t msg_ctime; | |
157 | compat_ulong_t __unused3; | |
158 | compat_ulong_t msg_cbytes; | |
159 | compat_ulong_t msg_qnum; | |
160 | compat_ulong_t msg_qbytes; | |
161 | compat_pid_t msg_lspid; | |
162 | compat_pid_t msg_lrpid; | |
163 | compat_ulong_t __unused4; | |
164 | compat_ulong_t __unused5; | |
165 | }; | |
166 | ||
167 | struct compat_shmid64_ds { | |
168 | struct compat_ipc64_perm shm_perm; | |
169 | compat_size_t shm_segsz; | |
170 | compat_time_t shm_atime; | |
171 | compat_ulong_t __unused1; | |
172 | compat_time_t shm_dtime; | |
173 | compat_ulong_t __unused2; | |
174 | compat_time_t shm_ctime; | |
175 | compat_ulong_t __unused3; | |
176 | compat_pid_t shm_cpid; | |
177 | compat_pid_t shm_lpid; | |
178 | compat_ulong_t shm_nattch; | |
179 | compat_ulong_t __unused4; | |
180 | compat_ulong_t __unused5; | |
181 | }; | |
182 | ||
183 | /* | |
184 | * A pointer passed in from user mode. This should not | |
185 | * be used for syscall parameters, just declare them | |
186 | * as pointers because the syscall entry code will have | |
187 | * appropriately comverted them already. | |
188 | */ | |
189 | typedef u32 compat_uptr_t; | |
190 | ||
191 | static inline void __user *compat_ptr(compat_uptr_t uptr) | |
192 | { | |
193 | return (void __user *)(unsigned long)uptr; | |
194 | } | |
195 | ||
196 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) | |
197 | { | |
198 | return (u32)(unsigned long)uptr; | |
199 | } | |
200 | ||
201 | static __inline__ void __user *compat_alloc_user_space(long len) | |
202 | { | |
bb049232 | 203 | struct pt_regs *regs = task_pt_regs(current); |
1da177e4 LT |
204 | return (void __user *)regs->rsp - len; |
205 | } | |
206 | ||
bf2fcc6f AK |
207 | static inline int is_compat_task(void) |
208 | { | |
209 | return current_thread_info()->status & TS_COMPAT; | |
210 | } | |
211 | ||
1da177e4 | 212 | #endif /* _ASM_X86_64_COMPAT_H */ |