aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-mips/compat.h
blob: d78002afb1e12927f080b13f930da9006d698ed1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
#ifndef _ASM_COMPAT_H
#define _ASM_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <asm/page.h>

#define COMPAT_USER_HZ	100

typedef u32		compat_size_t;
typedef s32		compat_ssize_t;
typedef s32		compat_time_t;
typedef s32		compat_clock_t;
typedef s32		compat_suseconds_t;

typedef s32		compat_pid_t;
typedef s32		compat_uid_t;
typedef s32		compat_gid_t;
typedef u32		compat_mode_t;
typedef u32		compat_ino_t;
typedef u32		compat_dev_t;
typedef s32		compat_off_t;
typedef s64		compat_loff_t;
typedef u32		compat_nlink_t;
typedef s32		compat_ipc_pid_t;
typedef s32		compat_daddr_t;
typedef s32		compat_caddr_t;
typedef struct {
	s32	val[2];
} compat_fsid_t;
typedef s32		compat_timer_t;

typedef s32		compat_int_t;
typedef s32		compat_long_t;
typedef u32		compat_uint_t;
typedef u32		compat_ulong_t;

struct compat_timespec {
	compat_time_t	tv_sec;
	s32		tv_nsec;
};

struct compat_timeval {
	compat_time_t	tv_sec;
	s32		tv_usec;
};

struct compat_stat {
	compat_dev_t	st_dev;
	s32		st_pad1[3];
	compat_ino_t	st_ino;
	compat_mode_t	st_mode;
	compat_nlink_t	st_nlink;
	compat_uid_t	st_uid;
	compat_gid_t	st_gid;
	compat_dev_t	st_rdev;
	s32		st_pad2[2];
	compat_off_t	st_size;
	s32		st_pad3;
	compat_time_t	st_atime;
	s32		st_atime_nsec;
	compat_time_t	st_mtime;
	s32		st_mtime_nsec;
	compat_time_t	st_ctime;
	s32		st_ctime_nsec;
	s32		st_blksize;
	s32		st_blocks;
	s32		st_pad4[14];
};

struct compat_flock {
	short		l_type;
	short		l_whence;
	compat_off_t	l_start;
	compat_off_t	l_len;
	s32		l_sysid;
	compat_pid_t	l_pid;
	short		__unused;
	s32		pad[4];
};

#define F_GETLK64	33
#define F_SETLK64	34
#define F_SETLKW64	35

struct compat_flock64 {
	short		l_type;
	short		l_whence;
	compat_loff_t	l_start;
	compat_loff_t	l_len;
	compat_pid_t	l_pid;
};

struct compat_statfs {
	int		f_type;
	int		f_bsize;
	int		f_frsize;
	int		f_blocks;
	int		f_bfree;
	int		f_files;
	int		f_ffree;
	int		f_bavail;
	compat_fsid_t	f_fsid;
	int		f_namelen;
	int		f_spare[6];
};

#define COMPAT_RLIM_INFINITY	0x7fffffffUL

typedef u32		compat_old_sigset_t;	/* at least 32 bits */

#define _COMPAT_NSIG		128		/* Don't ask !$@#% ...  */
#define _COMPAT_NSIG_BPW	32

typedef u32		compat_sigset_word;

#define COMPAT_OFF_T_MAX	0x7fffffff
#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL

/*
 * A pointer passed in from user mode. This should not
 * be used for syscall parameters, just declare them
 * as pointers because the syscall entry code will have
 * appropriately comverted them already.
 */
typedef u32		compat_uptr_t;

static inline void *compat_ptr(compat_uptr_t uptr)
{
	return (void *)(long)uptr;
}

static inline void *compat_alloc_user_space(long len)
{
	struct pt_regs *regs = (struct pt_regs *)
		((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;

	return (void *) (regs->regs[29] - len);
}
#if defined (__MIPSEL__)
#define __COMPAT_ENDIAN_SWAP__ 	1
#endif

#endif /* _ASM_COMPAT_H */