[deliverable/linux.git] / arch / s390 / kernel / compat_linux.h

#ifndef _ASM_S390X_S390_H
#define _ASM_S390X_S390_H

#include <linux/compat.h>
#include <linux/socket.h>
#include <linux/syscalls.h>
#include <linux/nfs_fs.h>
#include <linux/sunrpc/svc.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/export.h>

/* Macro that masks the high order bit of an 32 bit pointer and converts it*/
/*       to a 64 bit pointer */
#define A(__x) ((unsigned long)((__x) & 0x7FFFFFFFUL))
#define AA(__x)				\
	((unsigned long)(__x))

/* Now 32bit compatibility types */
struct ipc_kludge_32 {
        __u32   msgp;                           /* pointer              */
        __s32   msgtyp;
};

struct old_sigaction32 {
       __u32			sa_handler;	/* Really a pointer, but need to deal with 32 bits */
       compat_old_sigset_t	sa_mask;	/* A 32 bit mask */
       __u32			sa_flags;
       __u32			sa_restorer;	/* Another 32 bit pointer */
};
 
typedef struct compat_siginfo {
	int	si_signo;
	int	si_errno;
	int	si_code;

	union {
		int _pad[((128/sizeof(int)) - 3)];

		/* kill() */
		struct {
			pid_t	_pid;	/* sender's pid */
			uid_t	_uid;	/* sender's uid */
		} _kill;

		/* POSIX.1b timers */
		struct {
			compat_timer_t _tid;		/* timer id */
			int _overrun;		/* overrun count */
			compat_sigval_t _sigval;	/* same as below */
			int _sys_private;       /* not to be passed to user */
		} _timer;

		/* POSIX.1b signals */
		struct {
			pid_t			_pid;	/* sender's pid */
			uid_t			_uid;	/* sender's uid */
			compat_sigval_t		_sigval;
		} _rt;

		/* SIGCHLD */
		struct {
			pid_t			_pid;	/* which child */
			uid_t			_uid;	/* sender's uid */
			int			_status;/* exit code */
			compat_clock_t		_utime;
			compat_clock_t		_stime;
		} _sigchld;

		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
		struct {
			__u32	_addr;	/* faulting insn/memory ref. - pointer */
		} _sigfault;
                          
		/* SIGPOLL */
		struct {
			int	_band;	/* POLL_IN, POLL_OUT, POLL_MSG */
			int	_fd;
		} _sigpoll;
	} _sifields;
} compat_siginfo_t;

/*
 * How these fields are to be accessed.
 */
#define si_pid		_sifields._kill._pid
#define si_uid		_sifields._kill._uid
#define si_status	_sifields._sigchld._status
#define si_utime	_sifields._sigchld._utime
#define si_stime	_sifields._sigchld._stime
#define si_value	_sifields._rt._sigval
#define si_int		_sifields._rt._sigval.sival_int
#define si_ptr		_sifields._rt._sigval.sival_ptr
#define si_addr		_sifields._sigfault._addr
#define si_band		_sifields._sigpoll._band
#define si_fd		_sifields._sigpoll._fd    
#define si_tid		_sifields._timer._tid
#define si_overrun	_sifields._timer._overrun

/* asm/sigcontext.h */
typedef union
{
	__u64   d;
	__u32   f; 
} freg_t32;

typedef struct
{
	unsigned int	fpc;
	freg_t32	fprs[__NUM_FPRS];              
} _s390_fp_regs32;

typedef struct 
{
        __u32   mask;
        __u32	addr;
} _psw_t32 __attribute__ ((aligned(8)));

typedef struct
{
	_psw_t32	psw;
	__u32		gprs[__NUM_GPRS];
	__u32		acrs[__NUM_ACRS];
} _s390_regs_common32;

typedef struct
{
	_s390_regs_common32 regs;
	_s390_fp_regs32     fpregs;
} _sigregs32;

#define _SIGCONTEXT_NSIG32	64
#define _SIGCONTEXT_NSIG_BPW32	32
#define __SIGNAL_FRAMESIZE32	96
#define _SIGMASK_COPY_SIZE32	(sizeof(u32)*2)

struct sigcontext32
{
	__u32	oldmask[_COMPAT_NSIG_WORDS];
	__u32	sregs;				/* pointer */
};

/* asm/signal.h */
struct sigaction32 {
	__u32		sa_handler;		/* pointer */
	__u32		sa_flags;
        __u32		sa_restorer;		/* pointer */
	compat_sigset_t	sa_mask;        /* mask last for extensibility */
};

typedef struct {
	__u32			ss_sp;		/* pointer */
	int			ss_flags;
	compat_size_t		ss_size;
} stack_t32;

/* asm/ucontext.h */
struct ucontext32 {
	__u32			uc_flags;
	__u32			uc_link;	/* pointer */	
	stack_t32		uc_stack;
	_sigregs32		uc_mcontext;
	compat_sigset_t		uc_sigmask;	/* mask last for extensibility */
};

#endif /* _ASM_S390X_S390_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_S390X_S390_H
	2	#define _ASM_S390X_S390_H
	3
1da177e4 LT	4	#include <linux/compat.h>
	5	#include <linux/socket.h>
	6	#include <linux/syscalls.h>
	7	#include <linux/nfs_fs.h>
	8	#include <linux/sunrpc/svc.h>
	9	#include <linux/nfsd/nfsd.h>
	10	#include <linux/nfsd/export.h>
	11
	12	/* Macro that masks the high order bit of an 32 bit pointer and converts it*/
	13	/* to a 64 bit pointer */
	14	#define A(__x) ((unsigned long)((__x) & 0x7FFFFFFFUL))
	15	#define AA(__x) \
	16	((unsigned long)(__x))
	17
	18	/* Now 32bit compatibility types */
	19	struct ipc_kludge_32 {
	20	__u32 msgp; /* pointer */
	21	__s32 msgtyp;
	22	};
	23
	24	struct old_sigaction32 {
	25	__u32 sa_handler; /* Really a pointer, but need to deal with 32 bits */
	26	compat_old_sigset_t sa_mask; /* A 32 bit mask */
	27	__u32 sa_flags;
	28	__u32 sa_restorer; /* Another 32 bit pointer */
	29	};
	30
	31	typedef struct compat_siginfo {
	32	int si_signo;
	33	int si_errno;
	34	int si_code;
	35
	36	union {
	37	int _pad[((128/sizeof(int)) - 3)];
	38
	39	/* kill() */
	40	struct {
	41	pid_t _pid; /* sender's pid */
	42	uid_t _uid; /* sender's uid */
	43	} _kill;
	44
	45	/* POSIX.1b timers */
	46	struct {
0d77e5a2	47	compat_timer_t _tid; /* timer id */
1da177e4 LT	48	int _overrun; /* overrun count */
	49	compat_sigval_t _sigval; /* same as below */
	50	int _sys_private; /* not to be passed to user */
	51	} _timer;
	52
	53	/* POSIX.1b signals */
	54	struct {
	55	pid_t _pid; /* sender's pid */
	56	uid_t _uid; /* sender's uid */
	57	compat_sigval_t _sigval;
	58	} _rt;
	59
	60	/* SIGCHLD */
	61	struct {
	62	pid_t _pid; /* which child */
	63	uid_t _uid; /* sender's uid */
	64	int _status;/* exit code */
	65	compat_clock_t _utime;
	66	compat_clock_t _stime;
	67	} _sigchld;
	68
	69	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
	70	struct {
	71	__u32 _addr; /* faulting insn/memory ref. - pointer */
	72	} _sigfault;
	73
	74	/* SIGPOLL */
	75	struct {
	76	int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
	77	int _fd;
	78	} _sigpoll;
	79	} _sifields;
	80	} compat_siginfo_t;
	81
	82	/*
	83	* How these fields are to be accessed.
	84	*/
	85	#define si_pid _sifields._kill._pid
	86	#define si_uid _sifields._kill._uid
	87	#define si_status _sifields._sigchld._status
	88	#define si_utime _sifields._sigchld._utime
	89	#define si_stime _sifields._sigchld._stime
	90	#define si_value _sifields._rt._sigval
	91	#define si_int _sifields._rt._sigval.sival_int
	92	#define si_ptr _sifields._rt._sigval.sival_ptr
	93	#define si_addr _sifields._sigfault._addr
	94	#define si_band _sifields._sigpoll._band
	95	#define si_fd _sifields._sigpoll._fd
	96	#define si_tid _sifields._timer._tid
	97	#define si_overrun _sifields._timer._overrun
	98
	99	/* asm/sigcontext.h */
	100	typedef union
	101	{
	102	__u64 d;
	103	__u32 f;
	104	} freg_t32;
	105
	106	typedef struct
	107	{
	108	unsigned int fpc;
	109	freg_t32 fprs[__NUM_FPRS];
	110	} _s390_fp_regs32;
	111
112	typedef struct
113	{
114	__u32 mask;
115	__u32 addr;
116	} _psw_t32 __attribute__ ((aligned(8)));
117
1da177e4 LT	118	typedef struct
	119	{
	120	_psw_t32 psw;
	121	__u32 gprs[__NUM_GPRS];
	122	__u32 acrs[__NUM_ACRS];
	123	} _s390_regs_common32;
	124
	125	typedef struct
	126	{
	127	_s390_regs_common32 regs;
	128	_s390_fp_regs32 fpregs;
	129	} _sigregs32;
	130
	131	#define _SIGCONTEXT_NSIG32 64
	132	#define _SIGCONTEXT_NSIG_BPW32 32
	133	#define __SIGNAL_FRAMESIZE32 96
	134	#define _SIGMASK_COPY_SIZE32 (sizeof(u32)*2)
	135
	136	struct sigcontext32
	137	{
	138	__u32 oldmask[_COMPAT_NSIG_WORDS];
	139	__u32 sregs; /* pointer */
	140	};
	141
	142	/* asm/signal.h */
	143	struct sigaction32 {
	144	__u32 sa_handler; /* pointer */
	145	__u32 sa_flags;
	146	__u32 sa_restorer; /* pointer */
	147	compat_sigset_t sa_mask; /* mask last for extensibility */
	148	};
	149
	150	typedef struct {
	151	__u32 ss_sp; /* pointer */
	152	int ss_flags;
	153	compat_size_t ss_size;
	154	} stack_t32;
	155
	156	/* asm/ucontext.h */
	157	struct ucontext32 {
	158	__u32 uc_flags;
	159	__u32 uc_link; /* pointer */
	160	stack_t32 uc_stack;
	161	_sigregs32 uc_mcontext;
	162	compat_sigset_t uc_sigmask; /* mask last for extensibility */
	163	};
	164
	165	#endif /* _ASM_S390X_S390_H */