arch/parisc/include/asm/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 #define COMPAT_UTS_MACHINE      "parisc\0\0"
  12
  13 typedef u32     compat_size_t;
  14 typedef s32     compat_ssize_t;
  15 typedef s32     compat_time_t;
  16 typedef s32     compat_clock_t;
  17 typedef s32     compat_pid_t;
  18 typedef u32     __compat_uid_t;
  19 typedef u32     __compat_gid_t;
  20 typedef u32     __compat_uid32_t;
  21 typedef u32     __compat_gid32_t;
  22 typedef u16     compat_mode_t;
  23 typedef u32     compat_ino_t;
  24 typedef u32     compat_dev_t;
  25 typedef s32     compat_off_t;
  26 typedef s64     compat_loff_t;
  27 typedef u16     compat_nlink_t;
  28 typedef u16     compat_ipc_pid_t;
  29 typedef s32     compat_daddr_t;
  30 typedef u32     compat_caddr_t;
  31 typedef s32     compat_timer_t;
  32
  33 typedef s32     compat_int_t;
  34 typedef s32     compat_long_t;
  35 typedef s64     compat_s64;
  36 typedef u32     compat_uint_t;
  37 typedef u32     compat_ulong_t;
  38 typedef u64     compat_u64;
  39
  40 struct compat_timespec {
  41         compat_time_t           tv_sec;
  42         s32                     tv_nsec;
  43 };
  44
  45 struct compat_timeval {
  46         compat_time_t           tv_sec;
  47         s32                     tv_usec;
  48 };
  49
  50 struct compat_stat {
  51         compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  52         compat_ino_t            st_ino; /* 32 bits */
  53         compat_mode_t           st_mode;        /* 16 bits */
  54         compat_nlink_t          st_nlink;       /* 16 bits */
  55         u16                     st_reserved1;   /* old st_uid */
  56         u16                     st_reserved2;   /* old st_gid */
  57         compat_dev_t            st_rdev;
  58         compat_off_t            st_size;
  59         compat_time_t           st_atime;
  60         u32                     st_atime_nsec;
  61         compat_time_t           st_mtime;
  62         u32                     st_mtime_nsec;
  63         compat_time_t           st_ctime;
  64         u32                     st_ctime_nsec;
  65         s32                     st_blksize;
  66         s32                     st_blocks;
  67         u32                     __unused1;      /* ACL stuff */
  68         compat_dev_t            __unused2;      /* network */
  69         compat_ino_t            __unused3;      /* network */
  70         u32                     __unused4;      /* cnodes */
  71         u16                     __unused5;      /* netsite */
  72         short                   st_fstype;
  73         compat_dev_t            st_realdev;
  74         u16                     st_basemode;
  75         u16                     st_spareshort;
  76         __compat_uid32_t        st_uid;
  77         __compat_gid32_t        st_gid;
  78         u32                     st_spare4[3];
  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         compat_pid_t            l_pid;
  87 };
  88
  89 struct compat_flock64 {
  90         short                   l_type;
  91         short                   l_whence;
  92         compat_loff_t           l_start;
  93         compat_loff_t           l_len;
  94         compat_pid_t            l_pid;
  95 };
  96
  97 struct compat_statfs {
  98         s32             f_type;
  99         s32             f_bsize;
 100         s32             f_blocks;
 101         s32             f_bfree;
 102         s32             f_bavail;
 103         s32             f_files;
 104         s32             f_ffree;
 105         __kernel_fsid_t f_fsid;
 106         s32             f_namelen;
 107         s32             f_frsize;
 108         s32             f_spare[5];
 109 };
 110
 111 struct compat_sigcontext {
 112         compat_int_t sc_flags;
 113         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 114         u64 sc_fr[32];
 115         compat_int_t sc_iasq[2];
 116         compat_int_t sc_iaoq[2];
 117         compat_int_t sc_sar; /* cr11 */
 118 };
 119
 120 #define COMPAT_RLIM_INFINITY 0xffffffff
 121
 122 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 123
 124 #define _COMPAT_NSIG            64
 125 #define _COMPAT_NSIG_BPW        32
 126
 127 typedef u32             compat_sigset_word;
 128
 129 #define COMPAT_OFF_T_MAX        0x7fffffff
 130 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 131
 132 /*
 133  * A pointer passed in from user mode. This should not
 134  * be used for syscall parameters, just declare them
 135  * as pointers because the syscall entry code will have
 136  * appropriately converted them already.
 137  */
 138 typedef u32             compat_uptr_t;
 139
 140 static inline void __user *compat_ptr(compat_uptr_t uptr)
 141 {
 142         return (void __user *)(unsigned long)uptr;
 143 }
 144
 145 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 146 {
 147         return (u32)(unsigned long)uptr;
 148 }
 149
 150 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 151 {
 152         struct pt_regs *regs = &current->thread.regs;
 153         return (void __user *)regs->gr[30];
 154 }
 155
 156 static inline int __is_compat_task(struct task_struct *t)
 157 {
 158         return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
 159 }
 160
 161 static inline int is_compat_task(void)
 162 {
 163         return __is_compat_task(current);
 164 }
 165
 166 #endif /* _ASM_PARISC_COMPAT_H */