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