include/asm-mips/compat.h

   1 #ifndef _ASM_COMPAT_H
   2 #define _ASM_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7 #include <asm/page.h>
   8
   9 #define COMPAT_USER_HZ  100
  10
  11 typedef u32             compat_size_t;
  12 typedef s32             compat_ssize_t;
  13 typedef s32             compat_time_t;
  14 typedef s32             compat_clock_t;
  15 typedef s32             compat_suseconds_t;
  16
  17 typedef s32             compat_pid_t;
  18 typedef s32             __compat_uid_t;
  19 typedef s32             __compat_gid_t;
  20 typedef __compat_uid_t  __compat_uid32_t;
  21 typedef __compat_gid_t  __compat_gid32_t;
  22 typedef u32             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 u32             compat_nlink_t;
  28 typedef s32             compat_ipc_pid_t;
  29 typedef s32             compat_daddr_t;
  30 typedef s32             compat_caddr_t;
  31 typedef struct {
  32         s32     val[2];
  33 } compat_fsid_t;
  34 typedef s32             compat_timer_t;
  35 typedef s32             compat_key_t;
  36
  37 typedef s32             compat_int_t;
  38 typedef s32             compat_long_t;
  39 typedef u32             compat_uint_t;
  40 typedef u32             compat_ulong_t;
  41
  42 struct compat_timespec {
  43         compat_time_t   tv_sec;
  44         s32             tv_nsec;
  45 };
  46
  47 struct compat_timeval {
  48         compat_time_t   tv_sec;
  49         s32             tv_usec;
  50 };
  51
  52 struct compat_stat {
  53         compat_dev_t    st_dev;
  54         s32             st_pad1[3];
  55         compat_ino_t    st_ino;
  56         compat_mode_t   st_mode;
  57         compat_nlink_t  st_nlink;
  58         __compat_uid_t  st_uid;
  59         __compat_gid_t  st_gid;
  60         compat_dev_t    st_rdev;
  61         s32             st_pad2[2];
  62         compat_off_t    st_size;
  63         s32             st_pad3;
  64         compat_time_t   st_atime;
  65         s32             st_atime_nsec;
  66         compat_time_t   st_mtime;
  67         s32             st_mtime_nsec;
  68         compat_time_t   st_ctime;
  69         s32             st_ctime_nsec;
  70         s32             st_blksize;
  71         s32             st_blocks;
  72         s32             st_pad4[14];
  73 };
  74
  75 struct compat_flock {
  76         short           l_type;
  77         short           l_whence;
  78         compat_off_t    l_start;
  79         compat_off_t    l_len;
  80         s32             l_sysid;
  81         compat_pid_t    l_pid;
  82         short           __unused;
  83         s32             pad[4];
  84 };
  85
  86 #define F_GETLK64       33
  87 #define F_SETLK64       34
  88 #define F_SETLKW64      35
  89
  90 struct compat_flock64 {
  91         short           l_type;
  92         short           l_whence;
  93         compat_loff_t   l_start;
  94         compat_loff_t   l_len;
  95         compat_pid_t    l_pid;
  96 };
  97
  98 struct compat_statfs {
  99         int             f_type;
 100         int             f_bsize;
 101         int             f_frsize;
 102         int             f_blocks;
 103         int             f_bfree;
 104         int             f_files;
 105         int             f_ffree;
 106         int             f_bavail;
 107         compat_fsid_t   f_fsid;
 108         int             f_namelen;
 109         int             f_spare[6];
 110 };
 111
 112 #define COMPAT_RLIM_INFINITY    0x7fffffffUL
 113
 114 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 115
 116 #define _COMPAT_NSIG            128             /* Don't ask !$@#% ...  */
 117 #define _COMPAT_NSIG_BPW        32
 118
 119 typedef u32             compat_sigset_word;
 120
 121 #define COMPAT_OFF_T_MAX        0x7fffffff
 122 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 123
 124 /*
 125  * A pointer passed in from user mode. This should not
 126  * be used for syscall parameters, just declare them
 127  * as pointers because the syscall entry code will have
 128  * appropriately comverted them already.
 129  */
 130 typedef u32             compat_uptr_t;
 131
 132 static inline void __user *compat_ptr(compat_uptr_t uptr)
 133 {
 134         return (void __user *)(long)uptr;
 135 }
 136
 137 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 138 {
 139         return (u32)(unsigned long)uptr;
 140 }
 141
 142 static inline void __user *compat_alloc_user_space(long len)
 143 {
 144         struct pt_regs *regs = (struct pt_regs *)
 145                 ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
 146
 147         return (void __user *) (regs->regs[29] - len);
 148 }
 149
 150 struct compat_ipc64_perm {
 151         compat_key_t key;
 152         __compat_uid32_t uid;
 153         __compat_gid32_t gid;
 154         __compat_uid32_t cuid;
 155         __compat_gid32_t cgid;
 156         compat_mode_t mode;
 157         unsigned short seq;
 158         unsigned short __pad2;
 159         compat_ulong_t __unused1;
 160         compat_ulong_t __unused2;
 161 };
 162
 163 struct compat_semid64_ds {
 164         struct compat_ipc64_perm sem_perm;
 165         compat_time_t   sem_otime;
 166         compat_time_t   sem_ctime;
 167         compat_ulong_t  sem_nsems;
 168         compat_ulong_t  __unused1;
 169         compat_ulong_t  __unused2;
 170 };
 171
 172 struct compat_msqid64_ds {
 173         struct compat_ipc64_perm msg_perm;
 174 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 175         compat_ulong_t  __unused1;
 176 #endif
 177         compat_time_t   msg_stime;
 178 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 179         compat_ulong_t  __unused1;
 180 #endif
 181 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 182         compat_ulong_t  __unused2;
 183 #endif
 184         compat_time_t   msg_rtime;
 185 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 186         compat_ulong_t  __unused2;
 187 #endif
 188 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 189         compat_ulong_t  __unused3;
 190 #endif
 191         compat_time_t   msg_ctime;
 192 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 193         compat_ulong_t  __unused3;
 194 #endif
 195         compat_ulong_t  msg_cbytes;
 196         compat_ulong_t  msg_qnum;
 197         compat_ulong_t  msg_qbytes;
 198         compat_pid_t    msg_lspid;
 199         compat_pid_t    msg_lrpid;
 200         compat_ulong_t  __unused4;
 201         compat_ulong_t  __unused5;
 202 };
 203
 204 struct compat_shmid64_ds {
 205         struct compat_ipc64_perm shm_perm;
 206         compat_size_t   shm_segsz;
 207         compat_time_t   shm_atime;
 208         compat_time_t   shm_dtime;
 209         compat_time_t   shm_ctime;
 210         compat_pid_t    shm_cpid;
 211         compat_pid_t    shm_lpid;
 212         compat_ulong_t  shm_nattch;
 213         compat_ulong_t  __unused1;
 214         compat_ulong_t  __unused2;
 215 };
 216
 217 #endif /* _ASM_COMPAT_H */