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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 | 10 | |
e28cbf22 CH |
11 | #define COMPAT_USER_HZ 100 |
12 | #define COMPAT_UTS_MACHINE "mips\0\0\0" | |
1da177e4 LT |
13 | |
14 | typedef u32 compat_size_t; | |
15 | typedef s32 compat_ssize_t; | |
16 | typedef s32 compat_time_t; | |
17 | typedef s32 compat_clock_t; | |
18 | typedef s32 compat_suseconds_t; | |
19 | ||
20 | typedef s32 compat_pid_t; | |
4ee1303a RB |
21 | typedef s32 __compat_uid_t; |
22 | typedef s32 __compat_gid_t; | |
23 | typedef __compat_uid_t __compat_uid32_t; | |
24 | typedef __compat_gid_t __compat_gid32_t; | |
1da177e4 LT |
25 | typedef u32 compat_mode_t; |
26 | typedef u32 compat_ino_t; | |
27 | typedef u32 compat_dev_t; | |
28 | typedef s32 compat_off_t; | |
29 | typedef s64 compat_loff_t; | |
30 | typedef u32 compat_nlink_t; | |
31 | typedef s32 compat_ipc_pid_t; | |
32 | typedef s32 compat_daddr_t; | |
33 | typedef s32 compat_caddr_t; | |
34 | typedef struct { | |
35 | s32 val[2]; | |
36 | } compat_fsid_t; | |
0d77e5a2 | 37 | typedef s32 compat_timer_t; |
05e43966 | 38 | typedef s32 compat_key_t; |
1da177e4 LT |
39 | |
40 | typedef s32 compat_int_t; | |
41 | typedef s32 compat_long_t; | |
4b777587 | 42 | typedef s64 compat_s64; |
1da177e4 LT |
43 | typedef u32 compat_uint_t; |
44 | typedef u32 compat_ulong_t; | |
4b777587 | 45 | typedef u64 compat_u64; |
1da177e4 LT |
46 | |
47 | struct compat_timespec { | |
48 | compat_time_t tv_sec; | |
49 | s32 tv_nsec; | |
50 | }; | |
51 | ||
52 | struct compat_timeval { | |
53 | compat_time_t tv_sec; | |
54 | s32 tv_usec; | |
55 | }; | |
56 | ||
57 | struct compat_stat { | |
58 | compat_dev_t st_dev; | |
59 | s32 st_pad1[3]; | |
60 | compat_ino_t st_ino; | |
61 | compat_mode_t st_mode; | |
62 | compat_nlink_t st_nlink; | |
4ee1303a RB |
63 | __compat_uid_t st_uid; |
64 | __compat_gid_t st_gid; | |
1da177e4 LT |
65 | compat_dev_t st_rdev; |
66 | s32 st_pad2[2]; | |
67 | compat_off_t st_size; | |
68 | s32 st_pad3; | |
69 | compat_time_t st_atime; | |
70 | s32 st_atime_nsec; | |
71 | compat_time_t st_mtime; | |
72 | s32 st_mtime_nsec; | |
73 | compat_time_t st_ctime; | |
74 | s32 st_ctime_nsec; | |
75 | s32 st_blksize; | |
76 | s32 st_blocks; | |
77 | s32 st_pad4[14]; | |
78 | }; | |
79 | ||
80 | struct compat_flock { | |
81 | short l_type; | |
82 | short l_whence; | |
83 | compat_off_t l_start; | |
84 | compat_off_t l_len; | |
85 | s32 l_sysid; | |
86 | compat_pid_t l_pid; | |
87 | short __unused; | |
88 | s32 pad[4]; | |
89 | }; | |
90 | ||
91 | #define F_GETLK64 33 | |
92 | #define F_SETLK64 34 | |
93 | #define F_SETLKW64 35 | |
94 | ||
95 | struct compat_flock64 { | |
96 | short l_type; | |
97 | short l_whence; | |
98 | compat_loff_t l_start; | |
99 | compat_loff_t l_len; | |
100 | compat_pid_t l_pid; | |
101 | }; | |
102 | ||
103 | struct compat_statfs { | |
104 | int f_type; | |
105 | int f_bsize; | |
106 | int f_frsize; | |
107 | int f_blocks; | |
108 | int f_bfree; | |
109 | int f_files; | |
110 | int f_ffree; | |
111 | int f_bavail; | |
112 | compat_fsid_t f_fsid; | |
113 | int f_namelen; | |
114 | int f_spare[6]; | |
115 | }; | |
116 | ||
117 | #define COMPAT_RLIM_INFINITY 0x7fffffffUL | |
118 | ||
119 | typedef u32 compat_old_sigset_t; /* at least 32 bits */ | |
120 | ||
121 | #define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */ | |
122 | #define _COMPAT_NSIG_BPW 32 | |
123 | ||
124 | typedef u32 compat_sigset_word; | |
125 | ||
126 | #define COMPAT_OFF_T_MAX 0x7fffffff | |
127 | #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL | |
128 | ||
129 | /* | |
130 | * A pointer passed in from user mode. This should not | |
131 | * be used for syscall parameters, just declare them | |
132 | * as pointers because the syscall entry code will have | |
8b3de0df | 133 | * appropriately converted them already. |
1da177e4 LT |
134 | */ |
135 | typedef u32 compat_uptr_t; | |
136 | ||
219ac73a | 137 | static inline void __user *compat_ptr(compat_uptr_t uptr) |
1da177e4 | 138 | { |
01bebc66 AN |
139 | /* cast to a __user pointer via "unsigned long" makes sparse happy */ |
140 | return (void __user *)(unsigned long)(long)uptr; | |
1da177e4 LT |
141 | } |
142 | ||
62ac285f IM |
143 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) |
144 | { | |
145 | return (u32)(unsigned long)uptr; | |
146 | } | |
147 | ||
219ac73a | 148 | static inline void __user *compat_alloc_user_space(long len) |
1da177e4 LT |
149 | { |
150 | struct pt_regs *regs = (struct pt_regs *) | |
151 | ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1; | |
152 | ||
219ac73a | 153 | return (void __user *) (regs->regs[29] - len); |
1da177e4 | 154 | } |
1da177e4 | 155 | |
05e43966 AN |
156 | struct compat_ipc64_perm { |
157 | compat_key_t key; | |
158 | __compat_uid32_t uid; | |
159 | __compat_gid32_t gid; | |
160 | __compat_uid32_t cuid; | |
161 | __compat_gid32_t cgid; | |
162 | compat_mode_t mode; | |
163 | unsigned short seq; | |
164 | unsigned short __pad2; | |
165 | compat_ulong_t __unused1; | |
166 | compat_ulong_t __unused2; | |
167 | }; | |
168 | ||
169 | struct compat_semid64_ds { | |
170 | struct compat_ipc64_perm sem_perm; | |
171 | compat_time_t sem_otime; | |
172 | compat_time_t sem_ctime; | |
173 | compat_ulong_t sem_nsems; | |
174 | compat_ulong_t __unused1; | |
175 | compat_ulong_t __unused2; | |
176 | }; | |
177 | ||
178 | struct compat_msqid64_ds { | |
179 | struct compat_ipc64_perm msg_perm; | |
180 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
181 | compat_ulong_t __unused1; | |
182 | #endif | |
183 | compat_time_t msg_stime; | |
184 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
185 | compat_ulong_t __unused1; | |
186 | #endif | |
187 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
188 | compat_ulong_t __unused2; | |
189 | #endif | |
190 | compat_time_t msg_rtime; | |
191 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
192 | compat_ulong_t __unused2; | |
193 | #endif | |
194 | #ifndef CONFIG_CPU_LITTLE_ENDIAN | |
195 | compat_ulong_t __unused3; | |
196 | #endif | |
197 | compat_time_t msg_ctime; | |
198 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
199 | compat_ulong_t __unused3; | |
200 | #endif | |
201 | compat_ulong_t msg_cbytes; | |
202 | compat_ulong_t msg_qnum; | |
203 | compat_ulong_t msg_qbytes; | |
204 | compat_pid_t msg_lspid; | |
205 | compat_pid_t msg_lrpid; | |
206 | compat_ulong_t __unused4; | |
207 | compat_ulong_t __unused5; | |
208 | }; | |
209 | ||
210 | struct compat_shmid64_ds { | |
211 | struct compat_ipc64_perm shm_perm; | |
212 | compat_size_t shm_segsz; | |
213 | compat_time_t shm_atime; | |
214 | compat_time_t shm_dtime; | |
215 | compat_time_t shm_ctime; | |
216 | compat_pid_t shm_cpid; | |
217 | compat_pid_t shm_lpid; | |
218 | compat_ulong_t shm_nattch; | |
219 | compat_ulong_t __unused1; | |
220 | compat_ulong_t __unused2; | |
221 | }; | |
222 | ||
4302e5d5 RB |
223 | static inline int is_compat_task(void) |
224 | { | |
225 | return test_thread_flag(TIF_32BIT); | |
226 | } | |
227 | ||
1da177e4 | 228 | #endif /* _ASM_COMPAT_H */ |