include/asm-parisc/compat.h

   1 #ifndef _ASM_PARISC_COMPAT_H
   2 #define _ASM_PARISC_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7 #include <linux/sched.h>
   8 #include <linux/thread_info.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 u32     __compat_uid_t;
  18 typedef u32     __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 u32     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 s32     compat_timer_t;
  31
  32 typedef s32     compat_int_t;
  33 typedef s32     compat_long_t;
  34 typedef s64     compat_s64;
  35 typedef u32     compat_uint_t;
  36 typedef u32     compat_ulong_t;
  37 typedef u64     compat_u64;
  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; /* dev_t is 32 bits on parisc */
  51         compat_ino_t            st_ino; /* 32 bits */
  52         compat_mode_t           st_mode;        /* 16 bits */
  53         compat_nlink_t          st_nlink;       /* 16 bits */
  54         u16                     st_reserved1;   /* old st_uid */
  55         u16                     st_reserved2;   /* old st_gid */
  56         compat_dev_t            st_rdev;
  57         compat_off_t            st_size;
  58         compat_time_t           st_atime;
  59         u32                     st_atime_nsec;
  60         compat_time_t           st_mtime;
  61         u32                     st_mtime_nsec;
  62         compat_time_t           st_ctime;
  63         u32                     st_ctime_nsec;
  64         s32                     st_blksize;
  65         s32                     st_blocks;
  66         u32                     __unused1;      /* ACL stuff */
  67         compat_dev_t            __unused2;      /* network */
  68         compat_ino_t            __unused3;      /* network */
  69         u32                     __unused4;      /* cnodes */
  70         u16                     __unused5;      /* netsite */
  71         short                   st_fstype;
  72         compat_dev_t            st_realdev;
  73         u16                     st_basemode;
  74         u16                     st_spareshort;
  75         __compat_uid32_t        st_uid;
  76         __compat_gid32_t        st_gid;
  77         u32                     st_spare4[3];
  78 };
  79
  80 struct compat_flock {
  81         short                   l_type;
  82         short                   l_whence;
  83         compat_off_t            l_start;
  84         compat_off_t            l_len;
  85         compat_pid_t            l_pid;
  86 };
  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 };
  95
  96 struct compat_statfs {
  97         s32             f_type;
  98         s32             f_bsize;
  99         s32             f_blocks;
 100         s32             f_bfree;
 101         s32             f_bavail;
 102         s32             f_files;
 103         s32             f_ffree;
 104         __kernel_fsid_t f_fsid;
 105         s32             f_namelen;
 106         s32             f_frsize;
 107         s32             f_spare[5];
 108 };
 109
 110 struct compat_sigcontext {
 111         compat_int_t sc_flags;
 112         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 113         u64 sc_fr[32];
 114         compat_int_t sc_iasq[2];
 115         compat_int_t sc_iaoq[2];
 116         compat_int_t sc_sar; /* cr11 */
 117 };
 118
 119 #define COMPAT_RLIM_INFINITY 0xffffffff
 120
 121 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 122
 123 #define _COMPAT_NSIG            64
 124 #define _COMPAT_NSIG_BPW        32
 125
 126 typedef u32             compat_sigset_word;
 127
 128 #define COMPAT_OFF_T_MAX        0x7fffffff
 129 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 130
 131 /*
 132  * A pointer passed in from user mode. This should not
 133  * be used for syscall parameters, just declare them
 134  * as pointers because the syscall entry code will have
 135  * appropriately comverted them already.
 136  */
 137 typedef u32             compat_uptr_t;
 138
 139 static inline void __user *compat_ptr(compat_uptr_t uptr)
 140 {
 141         return (void __user *)(unsigned long)uptr;
 142 }
 143
 144 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 145 {
 146         return (u32)(unsigned long)uptr;
 147 }
 148
 149 static __inline__ void __user *compat_alloc_user_space(long len)
 150 {
 151         struct pt_regs *regs = &current->thread.regs;
 152         return (void __user *)regs->gr[30];
 153 }
 154
 155 static inline int __is_compat_task(struct task_struct *t)
 156 {
 157         return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
 158 }
 159
 160 static inline int is_compat_task(void)
 161 {
 162         return __is_compat_task(current);
 163 }
 164
 165 #endif /* _ASM_PARISC_COMPAT_H */