arch/powerpc/include/asm/compat.h - kernel/bruno - Git at Google

 #ifndef _ASM_POWERPC_COMPAT_H
 #define _ASM_POWERPC_COMPAT_H
 #ifdef __KERNEL__
 /*
  * Architecture specific compatibility types
  */
 #include <linux/types.h>
 #include <linux/sched.h>

 #define COMPAT_USER_HZ		100
 #ifdef __BIG_ENDIAN__
 #define COMPAT_UTS_MACHINE	"ppc\0\0"
 #else
 #define COMPAT_UTS_MACHINE	"ppcle\0\0"
 #endif

 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 u32		__compat_uid_t;
 typedef u32		__compat_gid_t;
 typedef u32		__compat_uid32_t;
 typedef u32		__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 s16		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_key_t;
 typedef s32		compat_timer_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;
 	compat_ino_t	st_ino;
 	compat_mode_t	st_mode;
 	compat_nlink_t	st_nlink;
 	__compat_uid32_t	st_uid;
 	__compat_gid32_t	st_gid;
 	compat_dev_t	st_rdev;
 	compat_off_t	st_size;
 	compat_off_t	st_blksize;
 	compat_off_t	st_blocks;
 	compat_time_t	st_atime;
 	u32		st_atime_nsec;
 	compat_time_t	st_mtime;
 	u32		st_mtime_nsec;
 	compat_time_t	st_ctime;
 	u32		st_ctime_nsec;
 	u32		__unused4[2];
 };

 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

 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_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_flags;
 	int		f_spare[4];
 };

 #define COMPAT_RLIM_OLD_INFINITY	0x7fffffff
 #define COMPAT_RLIM_INFINITY		0xffffffff

 typedef u32		compat_old_sigset_t;

 #define _COMPAT_NSIG		64
 #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_errno;
 	int si_code;

 	union {
 		int _pad[SI_PAD_SIZE32];

 		/* kill() */
 		struct {
 			compat_pid_t _pid;		/* sender's pid */
 			__compat_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 {
 			compat_pid_t _pid;		/* sender's pid */
 			__compat_uid_t _uid;		/* sender's uid */
 			compat_sigval_t _sigval;
 		} _rt;

 		/* 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;

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

 		/* SIGPOLL */
 		struct {
 			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
 			int _fd;
 		} _sigpoll;

 		/* SIGSYS */
 		struct {
 			unsigned int _call_addr; /* calling insn */
 			int _syscall;		 /* triggering system call number */
 			unsigned int _arch;	 /* AUDIT_ARCH_* of syscall */
 		} _sigsys;
 	} _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)
 {
 	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 = current->thread.regs;
 	unsigned long usp = regs->gpr[1];

 	/*
 	 * We can't access below the stack pointer in the 32bit ABI and
 	 * can access 288 bytes in the 64bit big-endian ABI,
 	 * or 512 bytes with the new ELFv2 little-endian ABI.
 	 */
 	if (!is_32bit_task())
 		usp -= USER_REDZONE_SIZE;

 	return (void __user *) (usp - len);
 }

 /*
  * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
  * it we may as well define it.
  */
 struct compat_ipc64_perm {
 	compat_key_t key;
 	__compat_uid_t uid;
 	__compat_gid_t gid;
 	__compat_uid_t cuid;
 	__compat_gid_t cgid;
 	compat_mode_t mode;
 	unsigned int seq;
 	unsigned int __pad2;
 	unsigned long __unused1;	/* yes they really are 64bit pads */
 	unsigned long __unused2;
 };

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

 struct compat_msqid64_ds {
 	struct compat_ipc64_perm msg_perm;
 	unsigned int __unused1;
 	compat_time_t msg_stime;
 	unsigned int __unused2;
 	compat_time_t msg_rtime;
 	unsigned int __unused3;
 	compat_time_t msg_ctime;
 	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;
 	unsigned int __unused1;
 	compat_time_t shm_atime;
 	unsigned int __unused2;
 	compat_time_t shm_dtime;
 	unsigned int __unused3;
 	compat_time_t shm_ctime;
 	unsigned int __unused4;
 	compat_size_t shm_segsz;
 	compat_pid_t shm_cpid;
 	compat_pid_t shm_lpid;
 	compat_ulong_t shm_nattch;
 	compat_ulong_t __unused5;
 	compat_ulong_t __unused6;
 };

 static inline int is_compat_task(void)
 {
 	return is_32bit_task();
 }

 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_COMPAT_H */
	#ifndef _ASM_POWERPC_COMPAT_H
	#define _ASM_POWERPC_COMPAT_H
	#ifdef __KERNEL__
	/*
	* Architecture specific compatibility types
	*/
	#include <linux/types.h>
	#include <linux/sched.h>

	#define COMPAT_USER_HZ 100
	#ifdef __BIG_ENDIAN__
	#define COMPAT_UTS_MACHINE "ppc\0\0"
	#else
	#define COMPAT_UTS_MACHINE "ppcle\0\0"
	#endif

	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 u32 __compat_uid_t;
	typedef u32 __compat_gid_t;
	typedef u32 __compat_uid32_t;
	typedef u32 __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 s16 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_key_t;
	typedef s32 compat_timer_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;
	compat_ino_t st_ino;
	compat_mode_t st_mode;
	compat_nlink_t st_nlink;
	__compat_uid32_t st_uid;
	__compat_gid32_t st_gid;
	compat_dev_t st_rdev;
	compat_off_t st_size;
	compat_off_t st_blksize;
	compat_off_t st_blocks;
	compat_time_t st_atime;
	u32 st_atime_nsec;
	compat_time_t st_mtime;
	u32 st_mtime_nsec;
	compat_time_t st_ctime;
	u32 st_ctime_nsec;
	u32 __unused4[2];
	};

	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

	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_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_flags;
	int f_spare[4];
	};

	#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
	#define COMPAT_RLIM_INFINITY 0xffffffff

	typedef u32 compat_old_sigset_t;

	#define _COMPAT_NSIG 64
	#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_errno;
	int si_code;

	union {
	int _pad[SI_PAD_SIZE32];

	/* kill() */
	struct {
	compat_pid_t _pid; /* sender's pid */
	__compat_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 {
	compat_pid_t _pid; /* sender's pid */
	__compat_uid_t _uid; /* sender's uid */
	compat_sigval_t _sigval;
	} _rt;

	/* 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;

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

	/* SIGPOLL */
	struct {
	int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
	int _fd;
	} _sigpoll;

	/* SIGSYS */
	struct {
	unsigned int _call_addr; /* calling insn */
	int _syscall; /* triggering system call number */
	unsigned int _arch; /* AUDIT_ARCH_* of syscall */
	} _sigsys;
	} _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)
	{
	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 = current->thread.regs;
	unsigned long usp = regs->gpr[1];

	/*
	* We can't access below the stack pointer in the 32bit ABI and
	* can access 288 bytes in the 64bit big-endian ABI,
	* or 512 bytes with the new ELFv2 little-endian ABI.
	*/
	if (!is_32bit_task())
	usp -= USER_REDZONE_SIZE;

	return (void __user *) (usp - len);
	}

	/*
	* ipc64_perm is actually 32/64bit clean but since the compat layer refers to
	* it we may as well define it.
	*/
	struct compat_ipc64_perm {
	compat_key_t key;
	__compat_uid_t uid;
	__compat_gid_t gid;
	__compat_uid_t cuid;
	__compat_gid_t cgid;
	compat_mode_t mode;
	unsigned int seq;
	unsigned int __pad2;
	unsigned long __unused1; /* yes they really are 64bit pads */
	unsigned long __unused2;
	};

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

	struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
	unsigned int __unused1;
	compat_time_t msg_stime;
	unsigned int __unused2;
	compat_time_t msg_rtime;
	unsigned int __unused3;
	compat_time_t msg_ctime;
	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;
	unsigned int __unused1;
	compat_time_t shm_atime;
	unsigned int __unused2;
	compat_time_t shm_dtime;
	unsigned int __unused3;
	compat_time_t shm_ctime;
	unsigned int __unused4;
	compat_size_t shm_segsz;
	compat_pid_t shm_cpid;
	compat_pid_t shm_lpid;
	compat_ulong_t shm_nattch;
	compat_ulong_t __unused5;
	compat_ulong_t __unused6;
	};

	static inline int is_compat_task(void)
	{
	return is_32bit_task();
	}

	#endif /* __KERNEL__ */
	#endif /* _ASM_POWERPC_COMPAT_H */