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 #include <asm/ptrace.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_suseconds_t;
  17
  18 typedef s32             compat_pid_t;
  19 typedef s32             __compat_uid_t;
  20 typedef s32             __compat_gid_t;
  21 typedef __compat_uid_t  __compat_uid32_t;
  22 typedef __compat_gid_t  __compat_gid32_t;
  23 typedef u32             compat_mode_t;
  24 typedef u32             compat_ino_t;
  25 typedef u32             compat_dev_t;
  26 typedef s32             compat_off_t;
  27 typedef s64             compat_loff_t;
  28 typedef u32             compat_nlink_t;
  29 typedef s32             compat_ipc_pid_t;
  30 typedef s32             compat_daddr_t;
  31 typedef s32             compat_caddr_t;
  32 typedef struct {
  33         s32     val[2];
  34 } compat_fsid_t;
  35 typedef s32             compat_timer_t;
  36 typedef s32             compat_key_t;
  37
  38 typedef s32             compat_int_t;
  39 typedef s32             compat_long_t;
  40 typedef s64             compat_s64;
  41 typedef u32             compat_uint_t;
  42 typedef u32             compat_ulong_t;
  43 typedef u64             compat_u64;
  44
  45 struct compat_timespec {
  46         compat_time_t   tv_sec;
  47         s32             tv_nsec;
  48 };
  49
  50 struct compat_timeval {
  51         compat_time_t   tv_sec;
  52         s32             tv_usec;
  53 };
  54
  55 struct compat_stat {
  56         compat_dev_t    st_dev;
  57         s32             st_pad1[3];
  58         compat_ino_t    st_ino;
  59         compat_mode_t   st_mode;
  60         compat_nlink_t  st_nlink;
  61         __compat_uid_t  st_uid;
  62         __compat_gid_t  st_gid;
  63         compat_dev_t    st_rdev;
  64         s32             st_pad2[2];
  65         compat_off_t    st_size;
  66         s32             st_pad3;
  67         compat_time_t   st_atime;
  68         s32             st_atime_nsec;
  69         compat_time_t   st_mtime;
  70         s32             st_mtime_nsec;
  71         compat_time_t   st_ctime;
  72         s32             st_ctime_nsec;
  73         s32             st_blksize;
  74         s32             st_blocks;
  75         s32             st_pad4[14];
  76 };
  77
  78 struct compat_flock {
  79         short           l_type;
  80         short           l_whence;
  81         compat_off_t    l_start;
  82         compat_off_t    l_len;
  83         s32             l_sysid;
  84         compat_pid_t    l_pid;
  85         short           __unused;
  86         s32             pad[4];
  87 };
  88
  89 #define F_GETLK64       33
  90 #define F_SETLK64       34
  91 #define F_SETLKW64      35
  92
  93 struct compat_flock64 {
  94         short           l_type;
  95         short           l_whence;
  96         compat_loff_t   l_start;
  97         compat_loff_t   l_len;
  98         compat_pid_t    l_pid;
  99 };
 100
 101 struct compat_statfs {
 102         int             f_type;
 103         int             f_bsize;
 104         int             f_frsize;
 105         int             f_blocks;
 106         int             f_bfree;
 107         int             f_files;
 108         int             f_ffree;
 109         int             f_bavail;
 110         compat_fsid_t   f_fsid;
 111         int             f_namelen;
 112         int             f_spare[6];
 113 };
 114
 115 #define COMPAT_RLIM_INFINITY    0x7fffffffUL
 116
 117 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 118
 119 #define _COMPAT_NSIG            128             /* Don't ask !$@#% ...  */
 120 #define _COMPAT_NSIG_BPW        32
 121
 122 typedef u32             compat_sigset_word;
 123
 124 #define COMPAT_OFF_T_MAX        0x7fffffff
 125 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 126
 127 /*
 128  * A pointer passed in from user mode. This should not
 129  * be used for syscall parameters, just declare them
 130  * as pointers because the syscall entry code will have
 131  * appropriately converted them already.
 132  */
 133 typedef u32             compat_uptr_t;
 134
 135 static inline void __user *compat_ptr(compat_uptr_t uptr)
 136 {
 137         /* cast to a __user pointer via "unsigned long" makes sparse happy */
 138         return (void __user *)(unsigned long)(long)uptr;
 139 }
 140
 141 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 142 {
 143         return (u32)(unsigned long)uptr;
 144 }
 145
 146 static inline void __user *compat_alloc_user_space(long len)
 147 {
 148         struct pt_regs *regs = (struct pt_regs *)
 149                 ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
 150
 151         return (void __user *) (regs->regs[29] - len);
 152 }
 153
 154 struct compat_ipc64_perm {
 155         compat_key_t key;
 156         __compat_uid32_t uid;
 157         __compat_gid32_t gid;
 158         __compat_uid32_t cuid;
 159         __compat_gid32_t cgid;
 160         compat_mode_t mode;
 161         unsigned short seq;
 162         unsigned short __pad2;
 163         compat_ulong_t __unused1;
 164         compat_ulong_t __unused2;
 165 };
 166
 167 struct compat_semid64_ds {
 168         struct compat_ipc64_perm sem_perm;
 169         compat_time_t   sem_otime;
 170         compat_time_t   sem_ctime;
 171         compat_ulong_t  sem_nsems;
 172         compat_ulong_t  __unused1;
 173         compat_ulong_t  __unused2;
 174 };
 175
 176 struct compat_msqid64_ds {
 177         struct compat_ipc64_perm msg_perm;
 178 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 179         compat_ulong_t  __unused1;
 180 #endif
 181         compat_time_t   msg_stime;
 182 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 183         compat_ulong_t  __unused1;
 184 #endif
 185 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 186         compat_ulong_t  __unused2;
 187 #endif
 188         compat_time_t   msg_rtime;
 189 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 190         compat_ulong_t  __unused2;
 191 #endif
 192 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 193         compat_ulong_t  __unused3;
 194 #endif
 195         compat_time_t   msg_ctime;
 196 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 197         compat_ulong_t  __unused3;
 198 #endif
 199         compat_ulong_t  msg_cbytes;
 200         compat_ulong_t  msg_qnum;
 201         compat_ulong_t  msg_qbytes;
 202         compat_pid_t    msg_lspid;
 203         compat_pid_t    msg_lrpid;
 204         compat_ulong_t  __unused4;
 205         compat_ulong_t  __unused5;
 206 };
 207
 208 struct compat_shmid64_ds {
 209         struct compat_ipc64_perm shm_perm;
 210         compat_size_t   shm_segsz;
 211         compat_time_t   shm_atime;
 212         compat_time_t   shm_dtime;
 213         compat_time_t   shm_ctime;
 214         compat_pid_t    shm_cpid;
 215         compat_pid_t    shm_lpid;
 216         compat_ulong_t  shm_nattch;
 217         compat_ulong_t  __unused1;
 218         compat_ulong_t  __unused2;
 219 };
 220
 221 #endif /* _ASM_COMPAT_H */