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