[mirror_ubuntu-artful-kernel.git] / arch / mips / include / asm / compat.h

#ifndef _ASM_COMPAT_H
#define _ASM_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/thread_info.h>
#include <linux/types.h>
#include <asm/page.h>
#include <asm/ptrace.h>

#define COMPAT_USER_HZ		100
#define COMPAT_UTS_MACHINE	"mips\0\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_suseconds_t;

typedef s32		compat_pid_t;
typedef s32		__compat_uid_t;
typedef s32		__compat_gid_t;
typedef __compat_uid_t	__compat_uid32_t;
typedef __compat_gid_t	__compat_gid32_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_key_t;

typedef s32		compat_int_t;
typedef s32		compat_long_t;
typedef s64		compat_s64;
typedef u32		compat_uint_t;
typedef u32		compat_ulong_t;
typedef u64		compat_u64;
typedef u32		compat_uptr_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_flags;
	int		f_spare[5];
};

#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;

typedef union compat_sigval {
	compat_int_t	sival_int;
	compat_uptr_t	sival_ptr;
} compat_sigval_t;

#define SI_PAD_SIZE32	(128/sizeof(int) - 3)

typedef struct compat_siginfo {
	int si_signo;
	int si_code;
	int si_errno;

	union {
		int _pad[SI_PAD_SIZE32];

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

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

		/* IRIX SIGCHLD */
		struct {
			compat_pid_t _pid;	/* which child */
			compat_clock_t _utime;
			int _status;		/* exit code */
			compat_clock_t _stime;
		} _irix_sigchld;

		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
		struct {
			s32 _addr; /* faulting insn/memory ref. */
		} _sigfault;

		/* SIGPOLL, SIGXFSZ (To do ...)	 */
		struct {
			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
			int _fd;
		} _sigpoll;

		/* POSIX.1b timers */
		struct {
			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 {
			compat_pid_t _pid;	/* sender's pid */
			__compat_uid_t _uid;	/* sender's uid */
			compat_sigval_t _sigval;
		} _rt;

	} _sifields;
} compat_siginfo_t;

#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 converted them already.
 */

static inline void __user *compat_ptr(compat_uptr_t uptr)
{
	/* cast to a __user pointer via "unsigned long" makes sparse happy */
	return (void __user *)(unsigned long)(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 = (struct pt_regs *)
		((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;

	return (void __user *) (regs->regs[29] - len);
}

struct compat_ipc64_perm {
	compat_key_t key;
	__compat_uid32_t uid;
	__compat_gid32_t gid;
	__compat_uid32_t cuid;
	__compat_gid32_t cgid;
	compat_mode_t mode;
	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_time_t	sem_ctime;
	compat_ulong_t	sem_nsems;
	compat_ulong_t	__unused1;
	compat_ulong_t	__unused2;
};

struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
#ifndef CONFIG_CPU_LITTLE_ENDIAN
	compat_ulong_t	__unused1;
#endif
	compat_time_t	msg_stime;
#ifdef CONFIG_CPU_LITTLE_ENDIAN
	compat_ulong_t	__unused1;
#endif
#ifndef CONFIG_CPU_LITTLE_ENDIAN
	compat_ulong_t	__unused2;
#endif
	compat_time_t	msg_rtime;
#ifdef CONFIG_CPU_LITTLE_ENDIAN
	compat_ulong_t	__unused2;
#endif
#ifndef CONFIG_CPU_LITTLE_ENDIAN
	compat_ulong_t	__unused3;
#endif
	compat_time_t	msg_ctime;
#ifdef CONFIG_CPU_LITTLE_ENDIAN
	compat_ulong_t	__unused3;
#endif
	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_time_t	shm_dtime;
	compat_time_t	shm_ctime;
	compat_pid_t	shm_cpid;
	compat_pid_t	shm_lpid;
	compat_ulong_t	shm_nattch;
	compat_ulong_t	__unused1;
	compat_ulong_t	__unused2;
};

/* MIPS has unusual order of fields in stack_t */
typedef struct compat_sigaltstack {
	compat_uptr_t			ss_sp;
	compat_size_t			ss_size;
	int				ss_flags;
} compat_stack_t;
#define compat_sigaltstack compat_sigaltstack

static inline int is_compat_task(void)
{
	return test_thread_flag(TIF_32BIT_ADDR);
}

#endif /* _ASM_COMPAT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_COMPAT_H
	2	#define _ASM_COMPAT_H
	3	/*
	4	* Architecture specific compatibility types
	5	*/
4302e5d5	6	#include <linux/thread_info.h>
1da177e4 LT	7	#include <linux/types.h>
1da177e4 LT	8	#include <asm/page.h>
b7237825	9	#include <asm/ptrace.h>
1da177e4	10
e28cbf22 CH	11	#define COMPAT_USER_HZ 100
e28cbf22 CH	12	#define COMPAT_UTS_MACHINE "mips\0\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_suseconds_t;
	19
	20	typedef s32 compat_pid_t;
4ee1303a RB	21	typedef s32 __compat_uid_t;
	22	typedef s32 __compat_gid_t;
	23	typedef __compat_uid_t __compat_uid32_t;
	24	typedef __compat_gid_t __compat_gid32_t;
1da177e4 LT	25	typedef u32 compat_mode_t;
	26	typedef u32 compat_ino_t;
	27	typedef u32 compat_dev_t;
	28	typedef s32 compat_off_t;
	29	typedef s64 compat_loff_t;
	30	typedef u32 compat_nlink_t;
	31	typedef s32 compat_ipc_pid_t;
	32	typedef s32 compat_daddr_t;
	33	typedef s32 compat_caddr_t;
	34	typedef struct {
	35	s32 val[2];
	36	} compat_fsid_t;
0d77e5a2	37	typedef s32 compat_timer_t;
05e43966	38	typedef s32 compat_key_t;
1da177e4 LT	39
	40	typedef s32 compat_int_t;
	41	typedef s32 compat_long_t;
4b777587	42	typedef s64 compat_s64;
1da177e4 LT	43	typedef u32 compat_uint_t;
1da177e4 LT	44	typedef u32 compat_ulong_t;
4b777587	45	typedef u64 compat_u64;
751f409d	46	typedef u32 compat_uptr_t;
1da177e4 LT	47
	48	struct compat_timespec {
	49	compat_time_t tv_sec;
	50	s32 tv_nsec;
	51	};
	52
	53	struct compat_timeval {
	54	compat_time_t tv_sec;
	55	s32 tv_usec;
	56	};
	57
	58	struct compat_stat {
	59	compat_dev_t st_dev;
	60	s32 st_pad1[3];
	61	compat_ino_t st_ino;
	62	compat_mode_t st_mode;
	63	compat_nlink_t st_nlink;
4ee1303a RB	64	__compat_uid_t st_uid;
4ee1303a RB	65	__compat_gid_t st_gid;
1da177e4 LT	66	compat_dev_t st_rdev;
	67	s32 st_pad2[2];
	68	compat_off_t st_size;
	69	s32 st_pad3;
	70	compat_time_t st_atime;
	71	s32 st_atime_nsec;
	72	compat_time_t st_mtime;
	73	s32 st_mtime_nsec;
	74	compat_time_t st_ctime;
	75	s32 st_ctime_nsec;
	76	s32 st_blksize;
	77	s32 st_blocks;
	78	s32 st_pad4[14];
	79	};
	80
	81	struct compat_flock {
	82	short l_type;
	83	short l_whence;
	84	compat_off_t l_start;
	85	compat_off_t l_len;
	86	s32 l_sysid;
	87	compat_pid_t l_pid;
	88	short __unused;
	89	s32 pad[4];
	90	};
	91
	92	#define F_GETLK64 33
	93	#define F_SETLK64 34
	94	#define F_SETLKW64 35
	95
	96	struct compat_flock64 {
	97	short l_type;
	98	short l_whence;
	99	compat_loff_t l_start;
	100	compat_loff_t l_len;
	101	compat_pid_t l_pid;
	102	};
	103
	104	struct compat_statfs {
	105	int f_type;
	106	int f_bsize;
	107	int f_frsize;
	108	int f_blocks;
	109	int f_bfree;
	110	int f_files;
	111	int f_ffree;
	112	int f_bavail;
	113	compat_fsid_t f_fsid;
	114	int f_namelen;
1448c721 EB	115	int f_flags;
1448c721 EB	116	int f_spare[5];
1da177e4 LT	117	};
	118
	119	#define COMPAT_RLIM_INFINITY 0x7fffffffUL
	120
	121	typedef u32 compat_old_sigset_t; /* at least 32 bits */
	122
70342287	123	#define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */
1da177e4 LT	124	#define _COMPAT_NSIG_BPW 32
	125
	126	typedef u32 compat_sigset_word;
	127
751f409d DV	128	typedef union compat_sigval {
	129	compat_int_t sival_int;
	130	compat_uptr_t sival_ptr;
	131	} compat_sigval_t;
	132
	133	#define SI_PAD_SIZE32 (128/sizeof(int) - 3)
	134
	135	typedef struct compat_siginfo {
	136	int si_signo;
	137	int si_code;
	138	int si_errno;
	139
	140	union {
	141	int _pad[SI_PAD_SIZE32];
	142
	143	/* kill() */
	144	struct {
	145	compat_pid_t _pid; /* sender's pid */
	146	__compat_uid_t _uid; /* sender's uid */
	147	} _kill;
	148
	149	/* SIGCHLD */
	150	struct {
	151	compat_pid_t _pid; /* which child */
	152	__compat_uid_t _uid; /* sender's uid */
	153	int _status; /* exit code */
	154	compat_clock_t _utime;
	155	compat_clock_t _stime;
	156	} _sigchld;
	157
	158	/* IRIX SIGCHLD */
	159	struct {
	160	compat_pid_t _pid; /* which child */
	161	compat_clock_t _utime;
	162	int _status; /* exit code */
	163	compat_clock_t _stime;
	164	} _irix_sigchld;
	165
	166	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
	167	struct {
	168	s32 _addr; /* faulting insn/memory ref. */
	169	} _sigfault;
	170
70342287	171	/* SIGPOLL, SIGXFSZ (To do ...) */
751f409d DV	172	struct {
	173	int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
	174	int _fd;
	175	} _sigpoll;
	176
	177	/* POSIX.1b timers */
	178	struct {
	179	timer_t _tid; /* timer id */
	180	int _overrun; /* overrun count */
	181	compat_sigval_t _sigval;/* same as below */
70342287	182	int _sys_private; /* not to be passed to user */
751f409d DV	183	} _timer;
	184
	185	/* POSIX.1b signals */
	186	struct {
	187	compat_pid_t _pid; /* sender's pid */
	188	__compat_uid_t _uid; /* sender's uid */
	189	compat_sigval_t _sigval;
	190	} _rt;
	191
	192	} _sifields;
	193	} compat_siginfo_t;
	194
1da177e4 LT	195	#define COMPAT_OFF_T_MAX 0x7fffffff
	196	#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
	197
	198	/*
	199	* A pointer passed in from user mode. This should not
	200	* be used for syscall parameters, just declare them
	201	* as pointers because the syscall entry code will have
8b3de0df	202	* appropriately converted them already.
1da177e4	203	*/
1da177e4	204
219ac73a	205	static inline void __user *compat_ptr(compat_uptr_t uptr)
1da177e4	206	{
01bebc66 AN	207	/* cast to a __user pointer via "unsigned long" makes sparse happy */
01bebc66 AN	208	return (void __user *)(unsigned long)(long)uptr;
1da177e4 LT	209	}
1da177e4 LT	210
62ac285f IM	211	static inline compat_uptr_t ptr_to_compat(void __user *uptr)
	212	{
	213	return (u32)(unsigned long)uptr;
	214	}
	215
c41d68a5	216	static inline void __user *arch_compat_alloc_user_space(long len)
1da177e4 LT	217	{
	218	struct pt_regs regs = (struct pt_regs )
	219	((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
	220
219ac73a	221	return (void __user *) (regs->regs[29] - len);
1da177e4	222	}
1da177e4	223
05e43966 AN	224	struct compat_ipc64_perm {
	225	compat_key_t key;
	226	__compat_uid32_t uid;
	227	__compat_gid32_t gid;
	228	__compat_uid32_t cuid;
	229	__compat_gid32_t cgid;
	230	compat_mode_t mode;
	231	unsigned short seq;
	232	unsigned short __pad2;
	233	compat_ulong_t __unused1;
	234	compat_ulong_t __unused2;
	235	};
	236
	237	struct compat_semid64_ds {
	238	struct compat_ipc64_perm sem_perm;
	239	compat_time_t sem_otime;
	240	compat_time_t sem_ctime;
	241	compat_ulong_t sem_nsems;
	242	compat_ulong_t __unused1;
	243	compat_ulong_t __unused2;
	244	};
	245
	246	struct compat_msqid64_ds {
	247	struct compat_ipc64_perm msg_perm;
	248	#ifndef CONFIG_CPU_LITTLE_ENDIAN
	249	compat_ulong_t __unused1;
	250	#endif
	251	compat_time_t msg_stime;
	252	#ifdef CONFIG_CPU_LITTLE_ENDIAN
	253	compat_ulong_t __unused1;
	254	#endif
	255	#ifndef CONFIG_CPU_LITTLE_ENDIAN
	256	compat_ulong_t __unused2;
	257	#endif
	258	compat_time_t msg_rtime;
	259	#ifdef CONFIG_CPU_LITTLE_ENDIAN
	260	compat_ulong_t __unused2;
	261	#endif
	262	#ifndef CONFIG_CPU_LITTLE_ENDIAN
	263	compat_ulong_t __unused3;
	264	#endif
	265	compat_time_t msg_ctime;
	266	#ifdef CONFIG_CPU_LITTLE_ENDIAN
	267	compat_ulong_t __unused3;
	268	#endif
	269	compat_ulong_t msg_cbytes;
	270	compat_ulong_t msg_qnum;
	271	compat_ulong_t msg_qbytes;
	272	compat_pid_t msg_lspid;
	273	compat_pid_t msg_lrpid;
	274	compat_ulong_t __unused4;
	275	compat_ulong_t __unused5;
	276	};
	277
	278	struct compat_shmid64_ds {
	279	struct compat_ipc64_perm shm_perm;
	280	compat_size_t shm_segsz;
	281	compat_time_t shm_atime;
	282	compat_time_t shm_dtime;
	283	compat_time_t shm_ctime;
	284	compat_pid_t shm_cpid;
	285	compat_pid_t shm_lpid;
	286	compat_ulong_t shm_nattch;
	287	compat_ulong_t __unused1;
288	compat_ulong_t __unused2;
289	};
290
ea536ad4 AV	291	/* MIPS has unusual order of fields in stack_t */
	292	typedef struct compat_sigaltstack {
	293	compat_uptr_t ss_sp;
	294	compat_size_t ss_size;
	295	int ss_flags;
	296	} compat_stack_t;
	297	#define compat_sigaltstack compat_sigaltstack
	298
4302e5d5 RB	299	static inline int is_compat_task(void)
4302e5d5 RB	300	{
6ad560b4	301	return test_thread_flag(TIF_32BIT_ADDR);
4302e5d5 RB	302	}
4302e5d5 RB	303
1da177e4	304	#endif /* _ASM_COMPAT_H */