[net-next-2.6.git] / arch / x86 / include / asm / compat.h

#ifndef _ASM_X86_COMPAT_H
#define _ASM_X86_COMPAT_H

/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <linux/sched.h>
#include <asm/user32.h>

#define COMPAT_USER_HZ		100
#define COMPAT_UTS_MACHINE	"i686\0\0"

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 s64 __attribute__((aligned(4))) compat_s64;
typedef u32		compat_uint_t;
typedef u32		compat_ulong_t;
typedef u64 __attribute__((aligned(4))) compat_u64;

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;
};

/*
 * The type of struct elf_prstatus.pr_reg in compatible core dumps.
 */
typedef struct user_regs_struct32 compat_elf_gregset_t;

/*
 * 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 converted 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 *arch_compat_alloc_user_space(long len)
{
	struct pt_regs *regs = task_pt_regs(current);
	return (void __user *)regs->sp - len;
}

static inline int is_compat_task(void)
{
	return current_thread_info()->status & TS_COMPAT;
}

#endif /* _ASM_X86_COMPAT_H */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_COMPAT_H
1965aae3 PA	2	#define _ASM_X86_COMPAT_H
1da177e4 LT	3
	4	/*
	5	* Architecture specific compatibility types
	6	*/
	7	#include <linux/types.h>
	8	#include <linux/sched.h>
95d1b8f9	9	#include <asm/user32.h>
1da177e4	10
e28cbf22 CH	11	#define COMPAT_USER_HZ 100
e28cbf22 CH	12	#define COMPAT_UTS_MACHINE "i686\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_pid_t;
202e5979 SR	19	typedef u16 __compat_uid_t;
	20	typedef u16 __compat_gid_t;
	21	typedef u32 __compat_uid32_t;
	22	typedef u32 __compat_gid32_t;
1da177e4 LT	23	typedef u16 compat_mode_t;
	24	typedef u32 compat_ino_t;
	25	typedef u16 compat_dev_t;
	26	typedef s32 compat_off_t;
	27	typedef s64 compat_loff_t;
	28	typedef u16 compat_nlink_t;
	29	typedef u16 compat_ipc_pid_t;
	30	typedef s32 compat_daddr_t;
	31	typedef u32 compat_caddr_t;
	32	typedef __kernel_fsid_t compat_fsid_t;
	33	typedef s32 compat_timer_t;
	34	typedef s32 compat_key_t;
	35
	36	typedef s32 compat_int_t;
	37	typedef s32 compat_long_t;
4b777587	38	typedef s64 __attribute__((aligned(4))) compat_s64;
1da177e4 LT	39	typedef u32 compat_uint_t;
1da177e4 LT	40	typedef u32 compat_ulong_t;
4b777587	41	typedef u64 __attribute__((aligned(4))) compat_u64;
1da177e4 LT	42
	43	struct compat_timespec {
	44	compat_time_t tv_sec;
	45	s32 tv_nsec;
	46	};
	47
	48	struct compat_timeval {
	49	compat_time_t tv_sec;
	50	s32 tv_usec;
	51	};
	52
	53	struct compat_stat {
	54	compat_dev_t st_dev;
	55	u16 __pad1;
	56	compat_ino_t st_ino;
	57	compat_mode_t st_mode;
	58	compat_nlink_t st_nlink;
202e5979 SR	59	__compat_uid_t st_uid;
202e5979 SR	60	__compat_gid_t st_gid;
1da177e4 LT	61	compat_dev_t st_rdev;
	62	u16 __pad2;
	63	u32 st_size;
	64	u32 st_blksize;
	65	u32 st_blocks;
	66	u32 st_atime;
	67	u32 st_atime_nsec;
	68	u32 st_mtime;
	69	u32 st_mtime_nsec;
	70	u32 st_ctime;
	71	u32 st_ctime_nsec;
	72	u32 __unused4;
	73	u32 __unused5;
	74	};
	75
	76	struct compat_flock {
	77	short l_type;
	78	short l_whence;
	79	compat_off_t l_start;
	80	compat_off_t l_len;
	81	compat_pid_t l_pid;
	82	};
	83
	84	#define F_GETLK64 12 /* using 'struct flock64' */
	85	#define F_SETLK64 13
	86	#define F_SETLKW64 14
	87
	88	/*
	89	* IA32 uses 4 byte alignment for 64 bit quantities,
	90	* so we need to pack this structure.
	91	*/
	92	struct compat_flock64 {
	93	short l_type;
	94	short l_whence;
	95	compat_loff_t l_start;
	96	compat_loff_t l_len;
	97	compat_pid_t l_pid;
	98	} __attribute__((packed));
	99
	100	struct compat_statfs {
	101	int f_type;
	102	int f_bsize;
	103	int f_blocks;
	104	int f_bfree;
	105	int f_bavail;
	106	int f_files;
	107	int f_ffree;
	108	compat_fsid_t f_fsid;
	109	int f_namelen; /* SunOS ignores this field. */
	110	int f_frsize;
	111	int f_spare[5];
	112	};
	113
	114	#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
	115	#define COMPAT_RLIM_INFINITY 0xffffffff
	116
	117	typedef u32 compat_old_sigset_t; /* at least 32 bits */
	118
	119	#define _COMPAT_NSIG 64
	120	#define _COMPAT_NSIG_BPW 32
	121
	122	typedef u32 compat_sigset_word;
	123
	124	#define COMPAT_OFF_T_MAX 0x7fffffff
125	#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
126
127	struct compat_ipc64_perm {
128	compat_key_t key;
202e5979 SR	129	__compat_uid32_t uid;
	130	__compat_gid32_t gid;
	131	__compat_uid32_t cuid;
	132	__compat_gid32_t cgid;
1da177e4 LT	133	unsigned short mode;
	134	unsigned short __pad1;
	135	unsigned short seq;
	136	unsigned short __pad2;
	137	compat_ulong_t unused1;
	138	compat_ulong_t unused2;
	139	};
	140
	141	struct compat_semid64_ds {
	142	struct compat_ipc64_perm sem_perm;
	143	compat_time_t sem_otime;
	144	compat_ulong_t __unused1;
	145	compat_time_t sem_ctime;
	146	compat_ulong_t __unused2;
	147	compat_ulong_t sem_nsems;
	148	compat_ulong_t __unused3;
	149	compat_ulong_t __unused4;
	150	};
	151
	152	struct compat_msqid64_ds {
	153	struct compat_ipc64_perm msg_perm;
	154	compat_time_t msg_stime;
	155	compat_ulong_t __unused1;
	156	compat_time_t msg_rtime;
	157	compat_ulong_t __unused2;
	158	compat_time_t msg_ctime;
	159	compat_ulong_t __unused3;
	160	compat_ulong_t msg_cbytes;
	161	compat_ulong_t msg_qnum;
	162	compat_ulong_t msg_qbytes;
	163	compat_pid_t msg_lspid;
	164	compat_pid_t msg_lrpid;
	165	compat_ulong_t __unused4;
	166	compat_ulong_t __unused5;
	167	};
	168
	169	struct compat_shmid64_ds {
	170	struct compat_ipc64_perm shm_perm;
	171	compat_size_t shm_segsz;
	172	compat_time_t shm_atime;
	173	compat_ulong_t __unused1;
	174	compat_time_t shm_dtime;
	175	compat_ulong_t __unused2;
	176	compat_time_t shm_ctime;
	177	compat_ulong_t __unused3;
	178	compat_pid_t shm_cpid;
	179	compat_pid_t shm_lpid;
	180	compat_ulong_t shm_nattch;
	181	compat_ulong_t __unused4;
	182	compat_ulong_t __unused5;
	183	};
	184
95d1b8f9 RM	185	/*
	186	* The type of struct elf_prstatus.pr_reg in compatible core dumps.
	187	*/
	188	typedef struct user_regs_struct32 compat_elf_gregset_t;
	189
1da177e4 LT	190	/*
	191	* A pointer passed in from user mode. This should not
	192	* be used for syscall parameters, just declare them
	193	* as pointers because the syscall entry code will have
8b3de0df	194	* appropriately converted them already.
1da177e4 LT	195	*/
	196	typedef u32 compat_uptr_t;
	197
	198	static inline void __user *compat_ptr(compat_uptr_t uptr)
	199	{
	200	return (void __user *)(unsigned long)uptr;
	201	}
	202
	203	static inline compat_uptr_t ptr_to_compat(void __user *uptr)
	204	{
	205	return (u32)(unsigned long)uptr;
	206	}
	207
c41d68a5	208	static inline void __user *arch_compat_alloc_user_space(long len)
1da177e4	209	{
bb049232	210	struct pt_regs *regs = task_pt_regs(current);
65ea5b03	211	return (void __user *)regs->sp - len;
1da177e4 LT	212	}
1da177e4 LT	213
bf2fcc6f AK	214	static inline int is_compat_task(void)
	215	{
	216	return current_thread_info()->status & TS_COMPAT;
	217	}
	218
1965aae3	219	#endif /* _ASM_X86_COMPAT_H */