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1da177e4 LT |
1 | #ifndef _ASM_COMPAT_H |
2 | #define _ASM_COMPAT_H | |
3 | /* | |
4 | * Architecture specific compatibility types | |
5 | */ | |
6 | #include <linux/types.h> | |
7 | #include <asm/page.h> | |
8 | ||
9 | #define COMPAT_USER_HZ 100 | |
10 | ||
11 | typedef u32 compat_size_t; | |
12 | typedef s32 compat_ssize_t; | |
13 | typedef s32 compat_time_t; | |
14 | typedef s32 compat_clock_t; | |
15 | typedef s32 compat_suseconds_t; | |
16 | ||
17 | typedef s32 compat_pid_t; | |
4ee1303a RB |
18 | typedef s32 __compat_uid_t; |
19 | typedef s32 __compat_gid_t; | |
20 | typedef __compat_uid_t __compat_uid32_t; | |
21 | typedef __compat_gid_t __compat_gid32_t; | |
1da177e4 LT |
22 | typedef u32 compat_mode_t; |
23 | typedef u32 compat_ino_t; | |
24 | typedef u32 compat_dev_t; | |
25 | typedef s32 compat_off_t; | |
26 | typedef s64 compat_loff_t; | |
27 | typedef u32 compat_nlink_t; | |
28 | typedef s32 compat_ipc_pid_t; | |
29 | typedef s32 compat_daddr_t; | |
30 | typedef s32 compat_caddr_t; | |
31 | typedef struct { | |
32 | s32 val[2]; | |
33 | } compat_fsid_t; | |
0d77e5a2 | 34 | typedef s32 compat_timer_t; |
1da177e4 LT |
35 | |
36 | typedef s32 compat_int_t; | |
37 | typedef s32 compat_long_t; | |
38 | typedef u32 compat_uint_t; | |
39 | typedef u32 compat_ulong_t; | |
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 | s32 st_pad1[3]; | |
54 | compat_ino_t st_ino; | |
55 | compat_mode_t st_mode; | |
56 | compat_nlink_t st_nlink; | |
4ee1303a RB |
57 | __compat_uid_t st_uid; |
58 | __compat_gid_t st_gid; | |
1da177e4 LT |
59 | compat_dev_t st_rdev; |
60 | s32 st_pad2[2]; | |
61 | compat_off_t st_size; | |
62 | s32 st_pad3; | |
63 | compat_time_t st_atime; | |
64 | s32 st_atime_nsec; | |
65 | compat_time_t st_mtime; | |
66 | s32 st_mtime_nsec; | |
67 | compat_time_t st_ctime; | |
68 | s32 st_ctime_nsec; | |
69 | s32 st_blksize; | |
70 | s32 st_blocks; | |
71 | s32 st_pad4[14]; | |
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 | s32 l_sysid; | |
80 | compat_pid_t l_pid; | |
81 | short __unused; | |
82 | s32 pad[4]; | |
83 | }; | |
84 | ||
85 | #define F_GETLK64 33 | |
86 | #define F_SETLK64 34 | |
87 | #define F_SETLKW64 35 | |
88 | ||
89 | struct compat_flock64 { | |
90 | short l_type; | |
91 | short l_whence; | |
92 | compat_loff_t l_start; | |
93 | compat_loff_t l_len; | |
94 | compat_pid_t l_pid; | |
95 | }; | |
96 | ||
97 | struct compat_statfs { | |
98 | int f_type; | |
99 | int f_bsize; | |
100 | int f_frsize; | |
101 | int f_blocks; | |
102 | int f_bfree; | |
103 | int f_files; | |
104 | int f_ffree; | |
105 | int f_bavail; | |
106 | compat_fsid_t f_fsid; | |
107 | int f_namelen; | |
108 | int f_spare[6]; | |
109 | }; | |
110 | ||
111 | #define COMPAT_RLIM_INFINITY 0x7fffffffUL | |
112 | ||
113 | typedef u32 compat_old_sigset_t; /* at least 32 bits */ | |
114 | ||
115 | #define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */ | |
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 | /* | |
124 | * A pointer passed in from user mode. This should not | |
125 | * be used for syscall parameters, just declare them | |
126 | * as pointers because the syscall entry code will have | |
127 | * appropriately comverted them already. | |
128 | */ | |
129 | typedef u32 compat_uptr_t; | |
130 | ||
219ac73a | 131 | static inline void __user *compat_ptr(compat_uptr_t uptr) |
1da177e4 | 132 | { |
219ac73a | 133 | return (void __user *)(long)uptr; |
1da177e4 LT |
134 | } |
135 | ||
62ac285f IM |
136 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) |
137 | { | |
138 | return (u32)(unsigned long)uptr; | |
139 | } | |
140 | ||
219ac73a | 141 | static inline void __user *compat_alloc_user_space(long len) |
1da177e4 LT |
142 | { |
143 | struct pt_regs *regs = (struct pt_regs *) | |
144 | ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1; | |
145 | ||
219ac73a | 146 | return (void __user *) (regs->regs[29] - len); |
1da177e4 | 147 | } |
1da177e4 LT |
148 | |
149 | #endif /* _ASM_COMPAT_H */ |