arch/parisc/include/asm/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_PARISC_COMPAT_H
   3 #define _ASM_PARISC_COMPAT_H
   4 /*
   5  * Architecture specific compatibility types
   6  */
   7 #include <linux/types.h>
   8 #include <linux/sched.h>
   9 #include <linux/thread_info.h>
  10
  11 #define COMPAT_USER_HZ          100
  12 #define COMPAT_UTS_MACHINE      "parisc\0\0"
  13
  14 typedef u32     compat_size_t;
  15 typedef s32     compat_ssize_t;
  16 typedef s32     compat_time_t;
  17 typedef s32     compat_clock_t;
  18 typedef s32     compat_pid_t;
  19 typedef u32     __compat_uid_t;
  20 typedef u32     __compat_gid_t;
  21 typedef u32     __compat_uid32_t;
  22 typedef u32     __compat_gid32_t;
  23 typedef u16     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 u16     compat_nlink_t;
  29 typedef u16     compat_ipc_pid_t;
  30 typedef s32     compat_daddr_t;
  31 typedef u32     compat_caddr_t;
  32 typedef s32     compat_key_t;
  33 typedef s32     compat_timer_t;
  34
  35 typedef s32     compat_int_t;
  36 typedef s32     compat_long_t;
  37 typedef s64     compat_s64;
  38 typedef u32     compat_uint_t;
  39 typedef u32     compat_ulong_t;
  40 typedef u64     compat_u64;
  41 typedef u32     compat_uptr_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; /* dev_t is 32 bits on parisc */
  55         compat_ino_t            st_ino; /* 32 bits */
  56         compat_mode_t           st_mode;        /* 16 bits */
  57         compat_nlink_t          st_nlink;       /* 16 bits */
  58         u16                     st_reserved1;   /* old st_uid */
  59         u16                     st_reserved2;   /* old st_gid */
  60         compat_dev_t            st_rdev;
  61         compat_off_t            st_size;
  62         compat_time_t           st_atime;
  63         u32                     st_atime_nsec;
  64         compat_time_t           st_mtime;
  65         u32                     st_mtime_nsec;
  66         compat_time_t           st_ctime;
  67         u32                     st_ctime_nsec;
  68         s32                     st_blksize;
  69         s32                     st_blocks;
  70         u32                     __unused1;      /* ACL stuff */
  71         compat_dev_t            __unused2;      /* network */
  72         compat_ino_t            __unused3;      /* network */
  73         u32                     __unused4;      /* cnodes */
  74         u16                     __unused5;      /* netsite */
  75         short                   st_fstype;
  76         compat_dev_t            st_realdev;
  77         u16                     st_basemode;
  78         u16                     st_spareshort;
  79         __compat_uid32_t        st_uid;
  80         __compat_gid32_t        st_gid;
  81         u32                     st_spare4[3];
  82 };
  83
  84 struct compat_flock {
  85         short                   l_type;
  86         short                   l_whence;
  87         compat_off_t            l_start;
  88         compat_off_t            l_len;
  89         compat_pid_t            l_pid;
  90 };
  91
  92 struct compat_flock64 {
  93         short                   l_type;
  94         short                   l_whence;
  95         compat_loff_t           l_start;
  96         compat_loff_t           l_len;
  97         compat_pid_t            l_pid;
  98 };
  99
 100 struct compat_statfs {
 101         s32             f_type;
 102         s32             f_bsize;
 103         s32             f_blocks;
 104         s32             f_bfree;
 105         s32             f_bavail;
 106         s32             f_files;
 107         s32             f_ffree;
 108         __kernel_fsid_t f_fsid;
 109         s32             f_namelen;
 110         s32             f_frsize;
 111         s32             f_flags;
 112         s32             f_spare[4];
 113 };
 114
 115 struct compat_sigcontext {
 116         compat_int_t sc_flags;
 117         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 118         u64 sc_fr[32];
 119         compat_int_t sc_iasq[2];
 120         compat_int_t sc_iaoq[2];
 121         compat_int_t sc_sar; /* cr11 */
 122 };
 123
 124 #define COMPAT_RLIM_INFINITY 0xffffffff
 125
 126 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 127
 128 #define _COMPAT_NSIG            64
 129 #define _COMPAT_NSIG_BPW        32
 130
 131 typedef u32             compat_sigset_word;
 132
 133 typedef union compat_sigval {
 134         compat_int_t    sival_int;
 135         compat_uptr_t   sival_ptr;
 136 } compat_sigval_t;
 137
 138 typedef struct compat_siginfo {
 139         int si_signo;
 140         int si_errno;
 141         int si_code;
 142
 143         union {
 144                 int _pad[128/sizeof(int) - 3];
 145
 146                 /* kill() */
 147                 struct {
 148                         unsigned int _pid;      /* sender's pid */
 149                         unsigned int _uid;      /* sender's uid */
 150                 } _kill;
 151
 152                 /* POSIX.1b timers */
 153                 struct {
 154                         compat_timer_t _tid;            /* timer id */
 155                         int _overrun;           /* overrun count */
 156                         char _pad[sizeof(unsigned int) - sizeof(int)];
 157                         compat_sigval_t _sigval;        /* same as below */
 158                         int _sys_private;       /* not to be passed to user */
 159                 } _timer;
 160
 161                 /* POSIX.1b signals */
 162                 struct {
 163                         unsigned int _pid;      /* sender's pid */
 164                         unsigned int _uid;      /* sender's uid */
 165                         compat_sigval_t _sigval;
 166                 } _rt;
 167
 168                 /* SIGCHLD */
 169                 struct {
 170                         unsigned int _pid;      /* which child */
 171                         unsigned int _uid;      /* sender's uid */
 172                         int _status;            /* exit code */
 173                         compat_clock_t _utime;
 174                         compat_clock_t _stime;
 175                 } _sigchld;
 176
 177                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
 178                 struct {
 179                         unsigned int _addr;     /* faulting insn/memory ref. */
 180                 } _sigfault;
 181
 182                 /* SIGPOLL */
 183                 struct {
 184                         int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
 185                         int _fd;
 186                 } _sigpoll;
 187
 188                 /* SIGSYS */
 189                 struct {
 190                         compat_uptr_t _call_addr; /* calling user insn */
 191                         int _syscall;   /* triggering system call number */
 192                         compat_uint_t _arch;    /* AUDIT_ARCH_* of syscall */
 193                 } _sigsys;
 194         } _sifields;
 195 } compat_siginfo_t;
 196
 197 #define COMPAT_OFF_T_MAX        0x7fffffff
 198 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 199
 200 struct compat_ipc64_perm {
 201         compat_key_t key;
 202         __compat_uid_t uid;
 203         __compat_gid_t gid;
 204         __compat_uid_t cuid;
 205         __compat_gid_t cgid;
 206         unsigned short int __pad1;
 207         compat_mode_t mode;
 208         unsigned short int __pad2;
 209         unsigned short int seq;
 210         unsigned int __pad3;
 211         unsigned long __unused1;        /* yes they really are 64bit pads */
 212         unsigned long __unused2;
 213 };
 214
 215 struct compat_semid64_ds {
 216         struct compat_ipc64_perm sem_perm;
 217         unsigned int __unused1;
 218         compat_time_t sem_otime;
 219         unsigned int __unused2;
 220         compat_time_t sem_ctime;
 221         compat_ulong_t sem_nsems;
 222         compat_ulong_t __unused3;
 223         compat_ulong_t __unused4;
 224 };
 225
 226 struct compat_msqid64_ds {
 227         struct compat_ipc64_perm msg_perm;
 228         unsigned int __unused1;
 229         compat_time_t msg_stime;
 230         unsigned int __unused2;
 231         compat_time_t msg_rtime;
 232         unsigned int __unused3;
 233         compat_time_t msg_ctime;
 234         compat_ulong_t msg_cbytes;
 235         compat_ulong_t msg_qnum;
 236         compat_ulong_t msg_qbytes;
 237         compat_pid_t msg_lspid;
 238         compat_pid_t msg_lrpid;
 239         compat_ulong_t __unused4;
 240         compat_ulong_t __unused5;
 241 };
 242
 243 struct compat_shmid64_ds {
 244         struct compat_ipc64_perm shm_perm;
 245         unsigned int __unused1;
 246         compat_time_t shm_atime;
 247         unsigned int __unused2;
 248         compat_time_t shm_dtime;
 249         unsigned int __unused3;
 250         compat_time_t shm_ctime;
 251         unsigned int __unused4;
 252         compat_size_t shm_segsz;
 253         compat_pid_t shm_cpid;
 254         compat_pid_t shm_lpid;
 255         compat_ulong_t shm_nattch;
 256         compat_ulong_t __unused5;
 257         compat_ulong_t __unused6;
 258 };
 259
 260 /*
 261  * A pointer passed in from user mode. This should not
 262  * be used for syscall parameters, just declare them
 263  * as pointers because the syscall entry code will have
 264  * appropriately converted them already.
 265  */
 266
 267 static inline void __user *compat_ptr(compat_uptr_t uptr)
 268 {
 269         return (void __user *)(unsigned long)uptr;
 270 }
 271
 272 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 273 {
 274         return (u32)(unsigned long)uptr;
 275 }
 276
 277 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 278 {
 279         struct pt_regs *regs = &current->thread.regs;
 280         return (void __user *)regs->gr[30];
 281 }
 282
 283 static inline int __is_compat_task(struct task_struct *t)
 284 {
 285         return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
 286 }
 287
 288 static inline int is_compat_task(void)
 289 {
 290         return __is_compat_task(current);
 291 }
 292
 293 #endif /* _ASM_PARISC_COMPAT_H */