[linux-2.6-block.git] / include / asm-x86_64 / compat.h

#ifndef _ASM_X86_64_COMPAT_H
#define _ASM_X86_64_COMPAT_H

/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <linux/sched.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_pid_t;
typedef u16		compat_uid_t;
typedef u16		compat_gid_t;
typedef u32		compat_uid32_t;
typedef u32		compat_gid32_t;
typedef u16		compat_mode_t;
typedef u32		compat_ino_t;
typedef u16		compat_dev_t;
typedef s32		compat_off_t;
typedef s64		compat_loff_t;
typedef u16		compat_nlink_t;
typedef u16		compat_ipc_pid_t;
typedef s32		compat_daddr_t;
typedef u32		compat_caddr_t;
typedef __kernel_fsid_t	compat_fsid_t;
typedef s32		compat_timer_t;
typedef s32		compat_key_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;
	u16		__pad1;
	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;
	u16		__pad2;
	u32		st_size;
	u32		st_blksize;
	u32		st_blocks;
	u32		st_atime;
	u32		st_atime_nsec;
	u32		st_mtime;
	u32		st_mtime_nsec;
	u32		st_ctime;
	u32		st_ctime_nsec;
	u32		__unused4;
	u32		__unused5;
};

struct compat_flock {
	short		l_type;
	short		l_whence;
	compat_off_t	l_start;
	compat_off_t	l_len;
	compat_pid_t	l_pid;
};

#define F_GETLK64	12	/*  using 'struct flock64' */
#define F_SETLK64	13
#define F_SETLKW64	14

/*
 * IA32 uses 4 byte alignment for 64 bit quantities,
 * so we need to pack this structure.
 */
struct compat_flock64 {
	short		l_type;
	short		l_whence;
	compat_loff_t	l_start;
	compat_loff_t	l_len;
	compat_pid_t	l_pid;
} __attribute__((packed));

struct compat_statfs {
	int		f_type;
	int		f_bsize;
	int		f_blocks;
	int		f_bfree;
	int		f_bavail;
	int		f_files;
	int		f_ffree;
	compat_fsid_t	f_fsid;
	int		f_namelen;	/* SunOS ignores this field. */
	int		f_frsize;
	int		f_spare[5];
};

#define COMPAT_RLIM_OLD_INFINITY	0x7fffffff
#define COMPAT_RLIM_INFINITY		0xffffffff

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

#define _COMPAT_NSIG		64
#define _COMPAT_NSIG_BPW	32

typedef u32               compat_sigset_word;

#define COMPAT_OFF_T_MAX	0x7fffffff
#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL

struct compat_ipc64_perm {
	compat_key_t key;
	compat_uid32_t uid;
	compat_gid32_t gid;
	compat_uid32_t cuid;
	compat_gid32_t cgid;
	unsigned short mode;
	unsigned short __pad1;
	unsigned short seq;
	unsigned short __pad2;
	compat_ulong_t unused1;
	compat_ulong_t unused2;
};

struct compat_semid64_ds {
	struct compat_ipc64_perm sem_perm;
	compat_time_t  sem_otime;
	compat_ulong_t __unused1;
	compat_time_t  sem_ctime;
	compat_ulong_t __unused2;
	compat_ulong_t sem_nsems;
	compat_ulong_t __unused3;
	compat_ulong_t __unused4;
};

struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
	compat_time_t  msg_stime;
	compat_ulong_t __unused1;
	compat_time_t  msg_rtime;
	compat_ulong_t __unused2;
	compat_time_t  msg_ctime;
	compat_ulong_t __unused3;
	compat_ulong_t msg_cbytes;
	compat_ulong_t msg_qnum;
	compat_ulong_t msg_qbytes;
	compat_pid_t   msg_lspid;
	compat_pid_t   msg_lrpid;
	compat_ulong_t __unused4;
	compat_ulong_t __unused5;
};

struct compat_shmid64_ds {
	struct compat_ipc64_perm shm_perm;
	compat_size_t  shm_segsz;
	compat_time_t  shm_atime;
	compat_ulong_t __unused1;
	compat_time_t  shm_dtime;
	compat_ulong_t __unused2;
	compat_time_t  shm_ctime;
	compat_ulong_t __unused3;
	compat_pid_t   shm_cpid;
	compat_pid_t   shm_lpid;
	compat_ulong_t shm_nattch;
	compat_ulong_t __unused4;
	compat_ulong_t __unused5;
};

/*
 * 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 __user *compat_ptr(compat_uptr_t uptr)
{
	return (void __user *)(unsigned long)uptr;
}

static inline compat_uptr_t ptr_to_compat(void __user *uptr)
{
	return (u32)(unsigned long)uptr;
}

static __inline__ void __user *compat_alloc_user_space(long len)
{
	struct pt_regs *regs = (void *)current->thread.rsp0 - sizeof(struct pt_regs); 
	return (void __user *)regs->rsp - len; 
}

#endif /* _ASM_X86_64_COMPAT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_X86_64_COMPAT_H
	2	#define _ASM_X86_64_COMPAT_H
	3
	4	/*
	5	* Architecture specific compatibility types
	6	*/
	7	#include <linux/types.h>
	8	#include <linux/sched.h>
	9
	10	#define COMPAT_USER_HZ 100
	11
	12	typedef u32 compat_size_t;
	13	typedef s32 compat_ssize_t;
	14	typedef s32 compat_time_t;
	15	typedef s32 compat_clock_t;
	16	typedef s32 compat_pid_t;
	17	typedef u16 compat_uid_t;
	18	typedef u16 compat_gid_t;
	19	typedef u32 compat_uid32_t;
	20	typedef u32 compat_gid32_t;
	21	typedef u16 compat_mode_t;
	22	typedef u32 compat_ino_t;
	23	typedef u16 compat_dev_t;
	24	typedef s32 compat_off_t;
	25	typedef s64 compat_loff_t;
	26	typedef u16 compat_nlink_t;
	27	typedef u16 compat_ipc_pid_t;
	28	typedef s32 compat_daddr_t;
	29	typedef u32 compat_caddr_t;
	30	typedef __kernel_fsid_t compat_fsid_t;
	31	typedef s32 compat_timer_t;
	32	typedef s32 compat_key_t;
	33
	34	typedef s32 compat_int_t;
	35	typedef s32 compat_long_t;
	36	typedef u32 compat_uint_t;
	37	typedef u32 compat_ulong_t;
	38
	39	struct compat_timespec {
	40	compat_time_t tv_sec;
	41	s32 tv_nsec;
	42	};
	43
	44	struct compat_timeval {
	45	compat_time_t tv_sec;
	46	s32 tv_usec;
	47	};
	48
	49	struct compat_stat {
	50	compat_dev_t st_dev;
	51	u16 __pad1;
	52	compat_ino_t st_ino;
	53	compat_mode_t st_mode;
	54	compat_nlink_t st_nlink;
	55	compat_uid_t st_uid;
	56	compat_gid_t st_gid;
	57	compat_dev_t st_rdev;
	58	u16 __pad2;
	59	u32 st_size;
	60	u32 st_blksize;
	61	u32 st_blocks;
	62	u32 st_atime;
	63	u32 st_atime_nsec;
	64	u32 st_mtime;
65	u32 st_mtime_nsec;
66	u32 st_ctime;
67	u32 st_ctime_nsec;
68	u32 __unused4;
69	u32 __unused5;
70	};
71
72	struct compat_flock {
73	short l_type;
74	short l_whence;
75	compat_off_t l_start;
76	compat_off_t l_len;
77	compat_pid_t l_pid;
78	};
79
80	#define F_GETLK64 12 /* using 'struct flock64' */
81	#define F_SETLK64 13
82	#define F_SETLKW64 14
83
84	/*
85	* IA32 uses 4 byte alignment for 64 bit quantities,
86	* so we need to pack this structure.
87	*/
88	struct compat_flock64 {
89	short l_type;
90	short l_whence;
91	compat_loff_t l_start;
92	compat_loff_t l_len;
93	compat_pid_t l_pid;
94	} __attribute__((packed));
95
96	struct compat_statfs {
97	int f_type;
98	int f_bsize;
99	int f_blocks;
100	int f_bfree;
101	int f_bavail;
102	int f_files;
103	int f_ffree;
104	compat_fsid_t f_fsid;
105	int f_namelen; /* SunOS ignores this field. */
106	int f_frsize;
107	int f_spare[5];
108	};
109
110	#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
111	#define COMPAT_RLIM_INFINITY 0xffffffff
112
113	typedef u32 compat_old_sigset_t; /* at least 32 bits */
114
115	#define _COMPAT_NSIG 64
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	struct compat_ipc64_perm {
124	compat_key_t key;
125	compat_uid32_t uid;
126	compat_gid32_t gid;
127	compat_uid32_t cuid;
128	compat_gid32_t cgid;
129	unsigned short mode;
130	unsigned short __pad1;
131	unsigned short seq;
132	unsigned short __pad2;
133	compat_ulong_t unused1;
134	compat_ulong_t unused2;
135	};
136
137	struct compat_semid64_ds {
138	struct compat_ipc64_perm sem_perm;
139	compat_time_t sem_otime;
140	compat_ulong_t __unused1;
141	compat_time_t sem_ctime;
142	compat_ulong_t __unused2;
143	compat_ulong_t sem_nsems;
144	compat_ulong_t __unused3;
145	compat_ulong_t __unused4;
146	};
147
148	struct compat_msqid64_ds {
149	struct compat_ipc64_perm msg_perm;
150	compat_time_t msg_stime;
151	compat_ulong_t __unused1;
152	compat_time_t msg_rtime;
153	compat_ulong_t __unused2;
154	compat_time_t msg_ctime;
155	compat_ulong_t __unused3;
156	compat_ulong_t msg_cbytes;
157	compat_ulong_t msg_qnum;
158	compat_ulong_t msg_qbytes;
159	compat_pid_t msg_lspid;
160	compat_pid_t msg_lrpid;
161	compat_ulong_t __unused4;
162	compat_ulong_t __unused5;
163	};
164
165	struct compat_shmid64_ds {
166	struct compat_ipc64_perm shm_perm;
167	compat_size_t shm_segsz;
168	compat_time_t shm_atime;
169	compat_ulong_t __unused1;
170	compat_time_t shm_dtime;
171	compat_ulong_t __unused2;
172	compat_time_t shm_ctime;
173	compat_ulong_t __unused3;
174	compat_pid_t shm_cpid;
175	compat_pid_t shm_lpid;
176	compat_ulong_t shm_nattch;
177	compat_ulong_t __unused4;
178	compat_ulong_t __unused5;
179	};
180
181	/*
182	* A pointer passed in from user mode. This should not
183	* be used for syscall parameters, just declare them
184	* as pointers because the syscall entry code will have
185	* appropriately comverted them already.
186	*/
187	typedef u32 compat_uptr_t;
188
189	static inline void __user *compat_ptr(compat_uptr_t uptr)
190	{
191	return (void __user *)(unsigned long)uptr;
192	}
193
194	static inline compat_uptr_t ptr_to_compat(void __user *uptr)
195	{
196	return (u32)(unsigned long)uptr;
197	}
198
199	static __inline__ void __user *compat_alloc_user_space(long len)
200	{
201	struct pt_regs regs = (void )current->thread.rsp0 - sizeof(struct pt_regs);
202	return (void __user *)regs->rsp - len;
203	}
204
205	#endif /* _ASM_X86_64_COMPAT_H */