Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef _ASM_COMPAT_H |
2 | #define _ASM_COMPAT_H | |
3 | /* | |
4 | * Architecture specific compatibility types | |
5 | */ | |
4302e5d5 | 6 | #include <linux/thread_info.h> |
1da177e4 LT |
7 | #include <linux/types.h> |
8 | #include <asm/page.h> | |
b7237825 | 9 | #include <asm/ptrace.h> |
1da177e4 LT |
10 | |
11 | #define COMPAT_USER_HZ 100 | |
12 | ||
13 | typedef u32 compat_size_t; | |
14 | typedef s32 compat_ssize_t; | |
15 | typedef s32 compat_time_t; | |
16 | typedef s32 compat_clock_t; | |
17 | typedef s32 compat_suseconds_t; | |
18 | ||
19 | typedef s32 compat_pid_t; | |
4ee1303a RB |
20 | typedef s32 __compat_uid_t; |
21 | typedef s32 __compat_gid_t; | |
22 | typedef __compat_uid_t __compat_uid32_t; | |
23 | typedef __compat_gid_t __compat_gid32_t; | |
1da177e4 LT |
24 | typedef u32 compat_mode_t; |
25 | typedef u32 compat_ino_t; | |
26 | typedef u32 compat_dev_t; | |
27 | typedef s32 compat_off_t; | |
28 | typedef s64 compat_loff_t; | |
29 | typedef u32 compat_nlink_t; | |
30 | typedef s32 compat_ipc_pid_t; | |
31 | typedef s32 compat_daddr_t; | |
32 | typedef s32 compat_caddr_t; | |
33 | typedef struct { | |
34 | s32 val[2]; | |
35 | } compat_fsid_t; | |
0d77e5a2 | 36 | typedef s32 compat_timer_t; |
05e43966 | 37 | typedef s32 compat_key_t; |
1da177e4 LT |
38 | |
39 | typedef s32 compat_int_t; | |
40 | typedef s32 compat_long_t; | |
4b777587 | 41 | typedef s64 compat_s64; |
1da177e4 LT |
42 | typedef u32 compat_uint_t; |
43 | typedef u32 compat_ulong_t; | |
4b777587 | 44 | typedef u64 compat_u64; |
1da177e4 LT |
45 | |
46 | struct compat_timespec { | |
47 | compat_time_t tv_sec; | |
48 | s32 tv_nsec; | |
49 | }; | |
50 | ||
51 | struct compat_timeval { | |
52 | compat_time_t tv_sec; | |
53 | s32 tv_usec; | |
54 | }; | |
55 | ||
56 | struct compat_stat { | |
57 | compat_dev_t st_dev; | |
58 | s32 st_pad1[3]; | |
59 | compat_ino_t st_ino; | |
60 | compat_mode_t st_mode; | |
61 | compat_nlink_t st_nlink; | |
4ee1303a RB |
62 | __compat_uid_t st_uid; |
63 | __compat_gid_t st_gid; | |
1da177e4 LT |
64 | compat_dev_t st_rdev; |
65 | s32 st_pad2[2]; | |
66 | compat_off_t st_size; | |
67 | s32 st_pad3; | |
68 | compat_time_t st_atime; | |
69 | s32 st_atime_nsec; | |
70 | compat_time_t st_mtime; | |
71 | s32 st_mtime_nsec; | |
72 | compat_time_t st_ctime; | |
73 | s32 st_ctime_nsec; | |
74 | s32 st_blksize; | |
75 | s32 st_blocks; | |
76 | s32 st_pad4[14]; | |
77 | }; | |
78 | ||
79 | struct compat_flock { | |
80 | short l_type; | |
81 | short l_whence; | |
82 | compat_off_t l_start; | |
83 | compat_off_t l_len; | |
84 | s32 l_sysid; | |
85 | compat_pid_t l_pid; | |
86 | short __unused; | |
87 | s32 pad[4]; | |
88 | }; | |
89 | ||
90 | #define F_GETLK64 33 | |
91 | #define F_SETLK64 34 | |
92 | #define F_SETLKW64 35 | |
93 | ||
94 | struct compat_flock64 { | |
95 | short l_type; | |
96 | short l_whence; | |
97 | compat_loff_t l_start; | |
98 | compat_loff_t l_len; | |
99 | compat_pid_t l_pid; | |
100 | }; | |
101 | ||
102 | struct compat_statfs { | |
103 | int f_type; | |
104 | int f_bsize; | |
105 | int f_frsize; | |
106 | int f_blocks; | |
107 | int f_bfree; | |
108 | int f_files; | |
109 | int f_ffree; | |
110 | int f_bavail; | |
111 | compat_fsid_t f_fsid; | |
112 | int f_namelen; | |
113 | int f_spare[6]; | |
114 | }; | |
115 | ||
116 | #define COMPAT_RLIM_INFINITY 0x7fffffffUL | |
117 | ||
118 | typedef u32 compat_old_sigset_t; /* at least 32 bits */ | |
119 | ||
120 | #define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */ | |
121 | #define _COMPAT_NSIG_BPW 32 | |
122 | ||
123 | typedef u32 compat_sigset_word; | |
124 | ||
125 | #define COMPAT_OFF_T_MAX 0x7fffffff | |
126 | #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL | |
127 | ||
128 | /* | |
129 | * A pointer passed in from user mode. This should not | |
130 | * be used for syscall parameters, just declare them | |
131 | * as pointers because the syscall entry code will have | |
8b3de0df | 132 | * appropriately converted them already. |
1da177e4 LT |
133 | */ |
134 | typedef u32 compat_uptr_t; | |
135 | ||
219ac73a | 136 | static inline void __user *compat_ptr(compat_uptr_t uptr) |
1da177e4 | 137 | { |
01bebc66 AN |
138 | /* cast to a __user pointer via "unsigned long" makes sparse happy */ |
139 | return (void __user *)(unsigned long)(long)uptr; | |
1da177e4 LT |
140 | } |
141 | ||
62ac285f IM |
142 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) |
143 | { | |
144 | return (u32)(unsigned long)uptr; | |
145 | } | |
146 | ||
219ac73a | 147 | static inline void __user *compat_alloc_user_space(long len) |
1da177e4 LT |
148 | { |
149 | struct pt_regs *regs = (struct pt_regs *) | |
150 | ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1; | |
151 | ||
219ac73a | 152 | return (void __user *) (regs->regs[29] - len); |
1da177e4 | 153 | } |
1da177e4 | 154 | |
05e43966 AN |
155 | struct compat_ipc64_perm { |
156 | compat_key_t key; | |
157 | __compat_uid32_t uid; | |
158 | __compat_gid32_t gid; | |
159 | __compat_uid32_t cuid; | |
160 | __compat_gid32_t cgid; | |
161 | compat_mode_t mode; | |
162 | unsigned short seq; | |
163 | unsigned short __pad2; | |
164 | compat_ulong_t __unused1; | |
165 | compat_ulong_t __unused2; | |
166 | }; | |
167 | ||
168 | struct compat_semid64_ds { | |
169 | struct compat_ipc64_perm sem_perm; | |
170 | compat_time_t sem_otime; | |
171 | compat_time_t sem_ctime; | |
172 | compat_ulong_t sem_nsems; | |
173 | compat_ulong_t __unused1; | |
174 | compat_ulong_t __unused2; | |
175 | }; | |
176 | ||
177 | struct compat_msqid64_ds { | |
178 | struct compat_ipc64_perm msg_perm; | |
179 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
180 | compat_ulong_t __unused1; | |
181 | #endif | |
182 | compat_time_t msg_stime; | |
183 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
184 | compat_ulong_t __unused1; | |
185 | #endif | |
186 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
187 | compat_ulong_t __unused2; | |
188 | #endif | |
189 | compat_time_t msg_rtime; | |
190 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
191 | compat_ulong_t __unused2; | |
192 | #endif | |
193 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
194 | compat_ulong_t __unused3; | |
195 | #endif | |
196 | compat_time_t msg_ctime; | |
197 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
198 | compat_ulong_t __unused3; | |
199 | #endif | |
200 | compat_ulong_t msg_cbytes; | |
201 | compat_ulong_t msg_qnum; | |
202 | compat_ulong_t msg_qbytes; | |
203 | compat_pid_t msg_lspid; | |
204 | compat_pid_t msg_lrpid; | |
205 | compat_ulong_t __unused4; | |
206 | compat_ulong_t __unused5; | |
207 | }; | |
208 | ||
209 | struct compat_shmid64_ds { | |
210 | struct compat_ipc64_perm shm_perm; | |
211 | compat_size_t shm_segsz; | |
212 | compat_time_t shm_atime; | |
213 | compat_time_t shm_dtime; | |
214 | compat_time_t shm_ctime; | |
215 | compat_pid_t shm_cpid; | |
216 | compat_pid_t shm_lpid; | |
217 | compat_ulong_t shm_nattch; | |
218 | compat_ulong_t __unused1; | |
219 | compat_ulong_t __unused2; | |
220 | }; | |
221 | ||
4302e5d5 RB |
222 | static inline int is_compat_task(void) |
223 | { | |
224 | return test_thread_flag(TIF_32BIT); | |
225 | } | |
226 | ||
1da177e4 | 227 | #endif /* _ASM_COMPAT_H */ |