include/linux/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_COMPAT_H
   3 #define _LINUX_COMPAT_H
   4 /*
   5  * These are the type definitions for the architecture specific
   6  * syscall compatibility layer.
   7  */
   8
   9 #include <linux/types.h>
  10 #include <linux/compat_time.h>
  11
  12 #include <linux/stat.h>
  13 #include <linux/param.h>        /* for HZ */
  14 #include <linux/sem.h>
  15 #include <linux/socket.h>
  16 #include <linux/if.h>
  17 #include <linux/fs.h>
  18 #include <linux/aio_abi.h>      /* for aio_context_t */
  19 #include <linux/uaccess.h>
  20 #include <linux/unistd.h>
  21
  22 #include <asm/compat.h>
  23
  24 #ifdef CONFIG_COMPAT
  25 #include <asm/siginfo.h>
  26 #include <asm/signal.h>
  27 #endif
  28
  29 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
  30 /*
  31  * It may be useful for an architecture to override the definitions of the
  32  * COMPAT_SYSCALL_DEFINE0 and COMPAT_SYSCALL_DEFINEx() macros, in particular
  33  * to use a different calling convention for syscalls. To allow for that,
  34  + the prototypes for the compat_sys_*() functions below will *not* be included
  35  * if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
  36  */
  37 #include <asm/syscall_wrapper.h>
  38 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
  39
  40 #ifndef COMPAT_USE_64BIT_TIME
  41 #define COMPAT_USE_64BIT_TIME 0
  42 #endif
  43
  44 #ifndef __SC_DELOUSE
  45 #define __SC_DELOUSE(t,v) ((__force t)(unsigned long)(v))
  46 #endif
  47
  48 #ifndef COMPAT_SYSCALL_DEFINE0
  49 #define COMPAT_SYSCALL_DEFINE0(name) \
  50         asmlinkage long compat_sys_##name(void); \
  51         ALLOW_ERROR_INJECTION(compat_sys_##name, ERRNO); \
  52         asmlinkage long compat_sys_##name(void)
  53 #endif /* COMPAT_SYSCALL_DEFINE0 */
  54
  55 #define COMPAT_SYSCALL_DEFINE1(name, ...) \
  56         COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
  57 #define COMPAT_SYSCALL_DEFINE2(name, ...) \
  58         COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
  59 #define COMPAT_SYSCALL_DEFINE3(name, ...) \
  60         COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
  61 #define COMPAT_SYSCALL_DEFINE4(name, ...) \
  62         COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
  63 #define COMPAT_SYSCALL_DEFINE5(name, ...) \
  64         COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
  65 #define COMPAT_SYSCALL_DEFINE6(name, ...) \
  66         COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
  67
  68 /*
  69  * The asmlinkage stub is aliased to a function named __se_compat_sys_*() which
  70  * sign-extends 32-bit ints to longs whenever needed. The actual work is
  71  * done within __do_compat_sys_*().
  72  */
  73 #ifndef COMPAT_SYSCALL_DEFINEx
  74 #define COMPAT_SYSCALL_DEFINEx(x, name, ...)                                    \
  75         __diag_push();                                                          \
  76         __diag_ignore(GCC, 8, "-Wattribute-alias",                              \
  77                       "Type aliasing is used to sanitize syscall arguments");\
  78         asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));       \
  79         asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))        \
  80                 __attribute__((alias(__stringify(__se_compat_sys##name))));     \
  81         ALLOW_ERROR_INJECTION(compat_sys##name, ERRNO);                         \
  82         static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
  83         asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));  \
  84         asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))   \
  85         {                                                                       \
  86                 long ret = __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
  87                 __MAP(x,__SC_TEST,__VA_ARGS__);                                 \
  88                 return ret;                                                     \
  89         }                                                                       \
  90         __diag_pop();                                                           \
  91         static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
  92 #endif /* COMPAT_SYSCALL_DEFINEx */
  93
  94 #ifdef CONFIG_COMPAT
  95
  96 #ifndef compat_user_stack_pointer
  97 #define compat_user_stack_pointer() current_user_stack_pointer()
  98 #endif
  99 #ifndef compat_sigaltstack      /* we'll need that for MIPS */
 100 typedef struct compat_sigaltstack {
 101         compat_uptr_t                   ss_sp;
 102         int                             ss_flags;
 103         compat_size_t                   ss_size;
 104 } compat_stack_t;
 105 #endif
 106
 107 #define compat_jiffies_to_clock_t(x)    \
 108                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
 109
 110 typedef __compat_uid32_t        compat_uid_t;
 111 typedef __compat_gid32_t        compat_gid_t;
 112
 113 typedef compat_ulong_t          compat_aio_context_t;
 114
 115 struct compat_sel_arg_struct;
 116 struct rusage;
 117
 118 struct compat_itimerspec {
 119         struct compat_timespec it_interval;
 120         struct compat_timespec it_value;
 121 };
 122
 123 struct compat_utimbuf {
 124         compat_time_t           actime;
 125         compat_time_t           modtime;
 126 };
 127
 128 struct compat_itimerval {
 129         struct compat_timeval   it_interval;
 130         struct compat_timeval   it_value;
 131 };
 132
 133 struct itimerval;
 134 int get_compat_itimerval(struct itimerval *, const struct compat_itimerval __user *);
 135 int put_compat_itimerval(struct compat_itimerval __user *, const struct itimerval *);
 136
 137 struct compat_tms {
 138         compat_clock_t          tms_utime;
 139         compat_clock_t          tms_stime;
 140         compat_clock_t          tms_cutime;
 141         compat_clock_t          tms_cstime;
 142 };
 143
 144 struct compat_timex {
 145         compat_uint_t modes;
 146         compat_long_t offset;
 147         compat_long_t freq;
 148         compat_long_t maxerror;
 149         compat_long_t esterror;
 150         compat_int_t status;
 151         compat_long_t constant;
 152         compat_long_t precision;
 153         compat_long_t tolerance;
 154         struct compat_timeval time;
 155         compat_long_t tick;
 156         compat_long_t ppsfreq;
 157         compat_long_t jitter;
 158         compat_int_t shift;
 159         compat_long_t stabil;
 160         compat_long_t jitcnt;
 161         compat_long_t calcnt;
 162         compat_long_t errcnt;
 163         compat_long_t stbcnt;
 164         compat_int_t tai;
 165
 166         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
 167         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
 168         compat_int_t:32; compat_int_t:32; compat_int_t:32;
 169 };
 170
 171 struct timex;
 172 int compat_get_timex(struct timex *, const struct compat_timex __user *);
 173 int compat_put_timex(struct compat_timex __user *, const struct timex *);
 174
 175 #define _COMPAT_NSIG_WORDS      (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
 176
 177 typedef struct {
 178         compat_sigset_word      sig[_COMPAT_NSIG_WORDS];
 179 } compat_sigset_t;
 180
 181 struct compat_sigaction {
 182 #ifndef __ARCH_HAS_IRIX_SIGACTION
 183         compat_uptr_t                   sa_handler;
 184         compat_ulong_t                  sa_flags;
 185 #else
 186         compat_uint_t                   sa_flags;
 187         compat_uptr_t                   sa_handler;
 188 #endif
 189 #ifdef __ARCH_HAS_SA_RESTORER
 190         compat_uptr_t                   sa_restorer;
 191 #endif
 192         compat_sigset_t                 sa_mask __packed;
 193 };
 194
 195 typedef union compat_sigval {
 196         compat_int_t    sival_int;
 197         compat_uptr_t   sival_ptr;
 198 } compat_sigval_t;
 199
 200 typedef struct compat_siginfo {
 201         int si_signo;
 202 #ifndef __ARCH_HAS_SWAPPED_SIGINFO
 203         int si_errno;
 204         int si_code;
 205 #else
 206         int si_code;
 207         int si_errno;
 208 #endif
 209
 210         union {
 211                 int _pad[128/sizeof(int) - 3];
 212
 213                 /* kill() */
 214                 struct {
 215                         compat_pid_t _pid;      /* sender's pid */
 216                         __compat_uid32_t _uid;  /* sender's uid */
 217                 } _kill;
 218
 219                 /* POSIX.1b timers */
 220                 struct {
 221                         compat_timer_t _tid;    /* timer id */
 222                         int _overrun;           /* overrun count */
 223                         compat_sigval_t _sigval;        /* same as below */
 224                 } _timer;
 225
 226                 /* POSIX.1b signals */
 227                 struct {
 228                         compat_pid_t _pid;      /* sender's pid */
 229                         __compat_uid32_t _uid;  /* sender's uid */
 230                         compat_sigval_t _sigval;
 231                 } _rt;
 232
 233                 /* SIGCHLD */
 234                 struct {
 235                         compat_pid_t _pid;      /* which child */
 236                         __compat_uid32_t _uid;  /* sender's uid */
 237                         int _status;            /* exit code */
 238                         compat_clock_t _utime;
 239                         compat_clock_t _stime;
 240                 } _sigchld;
 241
 242 #ifdef CONFIG_X86_X32_ABI
 243                 /* SIGCHLD (x32 version) */
 244                 struct {
 245                         compat_pid_t _pid;      /* which child */
 246                         __compat_uid32_t _uid;  /* sender's uid */
 247                         int _status;            /* exit code */
 248                         compat_s64 _utime;
 249                         compat_s64 _stime;
 250                 } _sigchld_x32;
 251 #endif
 252
 253                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
 254                 struct {
 255                         compat_uptr_t _addr;    /* faulting insn/memory ref. */
 256 #ifdef __ARCH_SI_TRAPNO
 257                         int _trapno;    /* TRAP # which caused the signal */
 258 #endif
 259 #define __COMPAT_ADDR_BND_PKEY_PAD  (__alignof__(compat_uptr_t) < sizeof(short) ? \
 260                                      sizeof(short) : __alignof__(compat_uptr_t))
 261                         union {
 262                                 /*
 263                                  * used when si_code=BUS_MCEERR_AR or
 264                                  * used when si_code=BUS_MCEERR_AO
 265                                  */
 266                                 short int _addr_lsb;    /* Valid LSB of the reported address. */
 267                                 /* used when si_code=SEGV_BNDERR */
 268                                 struct {
 269                                         char _dummy_bnd[__COMPAT_ADDR_BND_PKEY_PAD];
 270                                         compat_uptr_t _lower;
 271                                         compat_uptr_t _upper;
 272                                 } _addr_bnd;
 273                                 /* used when si_code=SEGV_PKUERR */
 274                                 struct {
 275                                         char _dummy_pkey[__COMPAT_ADDR_BND_PKEY_PAD];
 276                                         u32 _pkey;
 277                                 } _addr_pkey;
 278                         };
 279                 } _sigfault;
 280
 281                 /* SIGPOLL */
 282                 struct {
 283                         compat_long_t _band;    /* POLL_IN, POLL_OUT, POLL_MSG */
 284                         int _fd;
 285                 } _sigpoll;
 286
 287                 struct {
 288                         compat_uptr_t _call_addr; /* calling user insn */
 289                         int _syscall;   /* triggering system call number */
 290                         unsigned int _arch;     /* AUDIT_ARCH_* of syscall */
 291                 } _sigsys;
 292         } _sifields;
 293 } compat_siginfo_t;
 294
 295 /*
 296  * These functions operate on 32- or 64-bit specs depending on
 297  * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments.
 298  */
 299 extern int compat_get_timespec(struct timespec *, const void __user *);
 300 extern int compat_put_timespec(const struct timespec *, void __user *);
 301 extern int compat_get_timeval(struct timeval *, const void __user *);
 302 extern int compat_put_timeval(const struct timeval *, void __user *);
 303 extern int get_compat_itimerspec64(struct itimerspec64 *its,
 304                         const struct compat_itimerspec __user *uits);
 305 extern int put_compat_itimerspec64(const struct itimerspec64 *its,
 306                         struct compat_itimerspec __user *uits);
 307
 308 struct compat_iovec {
 309         compat_uptr_t   iov_base;
 310         compat_size_t   iov_len;
 311 };
 312
 313 struct compat_rlimit {
 314         compat_ulong_t  rlim_cur;
 315         compat_ulong_t  rlim_max;
 316 };
 317
 318 struct compat_rusage {
 319         struct compat_timeval ru_utime;
 320         struct compat_timeval ru_stime;
 321         compat_long_t   ru_maxrss;
 322         compat_long_t   ru_ixrss;
 323         compat_long_t   ru_idrss;
 324         compat_long_t   ru_isrss;
 325         compat_long_t   ru_minflt;
 326         compat_long_t   ru_majflt;
 327         compat_long_t   ru_nswap;
 328         compat_long_t   ru_inblock;
 329         compat_long_t   ru_oublock;
 330         compat_long_t   ru_msgsnd;
 331         compat_long_t   ru_msgrcv;
 332         compat_long_t   ru_nsignals;
 333         compat_long_t   ru_nvcsw;
 334         compat_long_t   ru_nivcsw;
 335 };
 336
 337 extern int put_compat_rusage(const struct rusage *,
 338                              struct compat_rusage __user *);
 339
 340 struct compat_siginfo;
 341 struct __compat_aio_sigset;
 342
 343 struct compat_dirent {
 344         u32             d_ino;
 345         compat_off_t    d_off;
 346         u16             d_reclen;
 347         char            d_name[256];
 348 };
 349
 350 struct compat_ustat {
 351         compat_daddr_t          f_tfree;
 352         compat_ino_t            f_tinode;
 353         char                    f_fname[6];
 354         char                    f_fpack[6];
 355 };
 356
 357 #define COMPAT_SIGEV_PAD_SIZE   ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
 358
 359 typedef struct compat_sigevent {
 360         compat_sigval_t sigev_value;
 361         compat_int_t sigev_signo;
 362         compat_int_t sigev_notify;
 363         union {
 364                 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
 365                 compat_int_t _tid;
 366
 367                 struct {
 368                         compat_uptr_t _function;
 369                         compat_uptr_t _attribute;
 370                 } _sigev_thread;
 371         } _sigev_un;
 372 } compat_sigevent_t;
 373
 374 struct compat_ifmap {
 375         compat_ulong_t mem_start;
 376         compat_ulong_t mem_end;
 377         unsigned short base_addr;
 378         unsigned char irq;
 379         unsigned char dma;
 380         unsigned char port;
 381 };
 382
 383 struct compat_if_settings {
 384         unsigned int type;      /* Type of physical device or protocol */
 385         unsigned int size;      /* Size of the data allocated by the caller */
 386         compat_uptr_t ifs_ifsu; /* union of pointers */
 387 };
 388
 389 struct compat_ifreq {
 390         union {
 391                 char    ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */
 392         } ifr_ifrn;
 393         union {
 394                 struct  sockaddr ifru_addr;
 395                 struct  sockaddr ifru_dstaddr;
 396                 struct  sockaddr ifru_broadaddr;
 397                 struct  sockaddr ifru_netmask;
 398                 struct  sockaddr ifru_hwaddr;
 399                 short   ifru_flags;
 400                 compat_int_t    ifru_ivalue;
 401                 compat_int_t    ifru_mtu;
 402                 struct  compat_ifmap ifru_map;
 403                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
 404                 char    ifru_newname[IFNAMSIZ];
 405                 compat_caddr_t  ifru_data;
 406                 struct  compat_if_settings ifru_settings;
 407         } ifr_ifru;
 408 };
 409
 410 struct compat_ifconf {
 411         compat_int_t    ifc_len;                /* size of buffer */
 412         compat_caddr_t  ifcbuf;
 413 };
 414
 415 struct compat_robust_list {
 416         compat_uptr_t                   next;
 417 };
 418
 419 struct compat_robust_list_head {
 420         struct compat_robust_list       list;
 421         compat_long_t                   futex_offset;
 422         compat_uptr_t                   list_op_pending;
 423 };
 424
 425 #ifdef CONFIG_COMPAT_OLD_SIGACTION
 426 struct compat_old_sigaction {
 427         compat_uptr_t                   sa_handler;
 428         compat_old_sigset_t             sa_mask;
 429         compat_ulong_t                  sa_flags;
 430         compat_uptr_t                   sa_restorer;
 431 };
 432 #endif
 433
 434 struct compat_keyctl_kdf_params {
 435         compat_uptr_t hashname;
 436         compat_uptr_t otherinfo;
 437         __u32 otherinfolen;
 438         __u32 __spare[8];
 439 };
 440
 441 struct compat_statfs;
 442 struct compat_statfs64;
 443 struct compat_old_linux_dirent;
 444 struct compat_linux_dirent;
 445 struct linux_dirent64;
 446 struct compat_msghdr;
 447 struct compat_mmsghdr;
 448 struct compat_sysinfo;
 449 struct compat_sysctl_args;
 450 struct compat_kexec_segment;
 451 struct compat_mq_attr;
 452 struct compat_msgbuf;
 453
 454 extern void compat_exit_robust_list(struct task_struct *curr);
 455
 456 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
 457
 458 #define BITS_TO_COMPAT_LONGS(bits) DIV_ROUND_UP(bits, BITS_PER_COMPAT_LONG)
 459
 460 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
 461                        unsigned long bitmap_size);
 462 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
 463                        unsigned long bitmap_size);
 464 int copy_siginfo_from_user32(siginfo_t *to, const struct compat_siginfo __user *from);
 465 int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from);
 466 int get_compat_sigevent(struct sigevent *event,
 467                 const struct compat_sigevent __user *u_event);
 468
 469 static inline int compat_timeval_compare(struct compat_timeval *lhs,
 470                                         struct compat_timeval *rhs)
 471 {
 472         if (lhs->tv_sec < rhs->tv_sec)
 473                 return -1;
 474         if (lhs->tv_sec > rhs->tv_sec)
 475                 return 1;
 476         return lhs->tv_usec - rhs->tv_usec;
 477 }
 478
 479 static inline int compat_timespec_compare(struct compat_timespec *lhs,
 480                                         struct compat_timespec *rhs)
 481 {
 482         if (lhs->tv_sec < rhs->tv_sec)
 483                 return -1;
 484         if (lhs->tv_sec > rhs->tv_sec)
 485                 return 1;
 486         return lhs->tv_nsec - rhs->tv_nsec;
 487 }
 488
 489 extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);
 490
 491 /*
 492  * Defined inline such that size can be compile time constant, which avoids
 493  * CONFIG_HARDENED_USERCOPY complaining about copies from task_struct
 494  */
 495 static inline int
 496 put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
 497                   unsigned int size)
 498 {
 499         /* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
 500 #ifdef __BIG_ENDIAN
 501         compat_sigset_t v;
 502         switch (_NSIG_WORDS) {
 503         case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
 504         case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
 505         case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
 506         case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
 507         }
 508         return copy_to_user(compat, &v, size) ? -EFAULT : 0;
 509 #else
 510         return copy_to_user(compat, set, size) ? -EFAULT : 0;
 511 #endif
 512 }
 513
 514 extern int compat_ptrace_request(struct task_struct *child,
 515                                  compat_long_t request,
 516                                  compat_ulong_t addr, compat_ulong_t data);
 517
 518 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 519                                compat_ulong_t addr, compat_ulong_t data);
 520
 521 struct epoll_event;     /* fortunately, this one is fixed-layout */
 522
 523 extern ssize_t compat_rw_copy_check_uvector(int type,
 524                 const struct compat_iovec __user *uvector,
 525                 unsigned long nr_segs,
 526                 unsigned long fast_segs, struct iovec *fast_pointer,
 527                 struct iovec **ret_pointer);
 528
 529 extern void __user *compat_alloc_user_space(unsigned long len);
 530
 531 int compat_restore_altstack(const compat_stack_t __user *uss);
 532 int __compat_save_altstack(compat_stack_t __user *, unsigned long);
 533 #define compat_save_altstack_ex(uss, sp) do { \
 534         compat_stack_t __user *__uss = uss; \
 535         struct task_struct *t = current; \
 536         put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
 537         put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \
 538         put_user_ex(t->sas_ss_size, &__uss->ss_size); \
 539         if (t->sas_ss_flags & SS_AUTODISARM) \
 540                 sas_ss_reset(t); \
 541 } while (0);
 542
 543 /*
 544  * These syscall function prototypes are kept in the same order as
 545  * include/uapi/asm-generic/unistd.h. Deprecated or obsolete system calls
 546  * go below.
 547  *
 548  * Please note that these prototypes here are only provided for information
 549  * purposes, for static analysis, and for linking from the syscall table.
 550  * These functions should not be called elsewhere from kernel code.
 551  *
 552  * As the syscall calling convention may be different from the default
 553  * for architectures overriding the syscall calling convention, do not
 554  * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
 555  */
 556 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
 557 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
 558 asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr,
 559                                      u32 __user *iocb);
 560 asmlinkage long compat_sys_io_getevents(compat_aio_context_t ctx_id,
 561                                         compat_long_t min_nr,
 562                                         compat_long_t nr,
 563                                         struct io_event __user *events,
 564                                         struct compat_timespec __user *timeout);
 565 asmlinkage long compat_sys_io_pgetevents(compat_aio_context_t ctx_id,
 566                                         compat_long_t min_nr,
 567                                         compat_long_t nr,
 568                                         struct io_event __user *events,
 569                                         struct compat_timespec __user *timeout,
 570                                         const struct __compat_aio_sigset __user *usig);
 571
 572 /* fs/cookies.c */
 573 asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
 574
 575 /* fs/eventpoll.c */
 576 asmlinkage long compat_sys_epoll_pwait(int epfd,
 577                         struct epoll_event __user *events,
 578                         int maxevents, int timeout,
 579                         const compat_sigset_t __user *sigmask,
 580                         compat_size_t sigsetsize);
 581
 582 /* fs/fcntl.c */
 583 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
 584                                  compat_ulong_t arg);
 585 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
 586                                    compat_ulong_t arg);
 587
 588 /* fs/ioctl.c */
 589 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
 590                                  compat_ulong_t arg);
 591
 592 /* fs/namespace.c */
 593 asmlinkage long compat_sys_mount(const char __user *dev_name,
 594                                  const char __user *dir_name,
 595                                  const char __user *type, compat_ulong_t flags,
 596                                  const void __user *data);
 597
 598 /* fs/open.c */
 599 asmlinkage long compat_sys_statfs(const char __user *pathname,
 600                                   struct compat_statfs __user *buf);
 601 asmlinkage long compat_sys_statfs64(const char __user *pathname,
 602                                     compat_size_t sz,
 603                                     struct compat_statfs64 __user *buf);
 604 asmlinkage long compat_sys_fstatfs(unsigned int fd,
 605                                    struct compat_statfs __user *buf);
 606 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
 607                                      struct compat_statfs64 __user *buf);
 608 asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
 609 asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
 610 /* No generic prototype for truncate64, ftruncate64, fallocate */
 611 asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
 612                                   int flags, umode_t mode);
 613
 614 /* fs/readdir.c */
 615 asmlinkage long compat_sys_getdents(unsigned int fd,
 616                                     struct compat_linux_dirent __user *dirent,
 617                                     unsigned int count);
 618
 619 /* fs/read_write.c */
 620 asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int);
 621 asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd,
 622                 const struct compat_iovec __user *vec, compat_ulong_t vlen);
 623 asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
 624                 const struct compat_iovec __user *vec, compat_ulong_t vlen);
 625 /* No generic prototype for pread64 and pwrite64 */
 626 asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
 627                 const struct compat_iovec __user *vec,
 628                 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
 629 asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
 630                 const struct compat_iovec __user *vec,
 631                 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
 632 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
 633 asmlinkage long compat_sys_preadv64(unsigned long fd,
 634                 const struct compat_iovec __user *vec,
 635                 unsigned long vlen, loff_t pos);
 636 #endif
 637
 638 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
 639 asmlinkage long compat_sys_pwritev64(unsigned long fd,
 640                 const struct compat_iovec __user *vec,
 641                 unsigned long vlen, loff_t pos);
 642 #endif
 643
 644 /* fs/sendfile.c */
 645 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
 646                                     compat_off_t __user *offset, compat_size_t count);
 647 asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
 648                                     compat_loff_t __user *offset, compat_size_t count);
 649
 650 /* fs/select.c */
 651 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
 652                                     compat_ulong_t __user *outp,
 653                                     compat_ulong_t __user *exp,
 654                                     struct compat_timespec __user *tsp,
 655                                     void __user *sig);
 656 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
 657                                  unsigned int nfds,
 658                                  struct compat_timespec __user *tsp,
 659                                  const compat_sigset_t __user *sigmask,
 660                                  compat_size_t sigsetsize);
 661
 662 /* fs/signalfd.c */
 663 asmlinkage long compat_sys_signalfd4(int ufd,
 664                                      const compat_sigset_t __user *sigmask,
 665                                      compat_size_t sigsetsize, int flags);
 666
 667 /* fs/splice.c */
 668 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
 669                                     unsigned int nr_segs, unsigned int flags);
 670
 671 /* fs/stat.c */
 672 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
 673                                       const char __user *filename,
 674                                       struct compat_stat __user *statbuf,
 675                                       int flag);
 676 asmlinkage long compat_sys_newfstat(unsigned int fd,
 677                                     struct compat_stat __user *statbuf);
 678
 679 /* fs/sync.c: No generic prototype for sync_file_range and sync_file_range2 */
 680
 681 /* fs/timerfd.c */
 682 asmlinkage long compat_sys_timerfd_gettime(int ufd,
 683                                    struct compat_itimerspec __user *otmr);
 684 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
 685                                    const struct compat_itimerspec __user *utmr,
 686                                    struct compat_itimerspec __user *otmr);
 687
 688 /* fs/utimes.c */
 689 asmlinkage long compat_sys_utimensat(unsigned int dfd,
 690                                      const char __user *filename,
 691                                      struct compat_timespec __user *t,
 692                                      int flags);
 693
 694 /* kernel/exit.c */
 695 asmlinkage long compat_sys_waitid(int, compat_pid_t,
 696                 struct compat_siginfo __user *, int,
 697                 struct compat_rusage __user *);
 698
 699
 700
 701 /* kernel/futex.c */
 702 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
 703                 struct compat_timespec __user *utime, u32 __user *uaddr2,
 704                 u32 val3);
 705 asmlinkage long
 706 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
 707                            compat_size_t len);
 708 asmlinkage long
 709 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
 710                            compat_size_t __user *len_ptr);
 711
 712 /* kernel/hrtimer.c */
 713 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
 714                                      struct compat_timespec __user *rmtp);
 715
 716 /* kernel/itimer.c */
 717 asmlinkage long compat_sys_getitimer(int which,
 718                                      struct compat_itimerval __user *it);
 719 asmlinkage long compat_sys_setitimer(int which,
 720                                      struct compat_itimerval __user *in,
 721                                      struct compat_itimerval __user *out);
 722
 723 /* kernel/kexec.c */
 724 asmlinkage long compat_sys_kexec_load(compat_ulong_t entry,
 725                                       compat_ulong_t nr_segments,
 726                                       struct compat_kexec_segment __user *,
 727                                       compat_ulong_t flags);
 728
 729 /* kernel/posix-timers.c */
 730 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
 731                         struct compat_sigevent __user *timer_event_spec,
 732                         timer_t __user *created_timer_id);
 733 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
 734                                  struct compat_itimerspec __user *setting);
 735 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
 736                                          struct compat_itimerspec __user *new,
 737                                          struct compat_itimerspec __user *old);
 738 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
 739                                          struct compat_timespec __user *tp);
 740 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
 741                                          struct compat_timespec __user *tp);
 742 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
 743                                         struct compat_timespec __user *tp);
 744 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
 745                                            struct compat_timespec __user *rqtp,
 746                                            struct compat_timespec __user *rmtp);
 747
 748 /* kernel/ptrace.c */
 749 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
 750                                   compat_long_t addr, compat_long_t data);
 751
 752 /* kernel/sched/core.c */
 753 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
 754                                      unsigned int len,
 755                                      compat_ulong_t __user *user_mask_ptr);
 756 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
 757                                      unsigned int len,
 758                                      compat_ulong_t __user *user_mask_ptr);
 759 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
 760                                                  struct compat_timespec __user *interval);
 761
 762 /* kernel/signal.c */
 763 asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
 764                                        compat_stack_t __user *uoss_ptr);
 765 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
 766                                          compat_size_t sigsetsize);
 767 #ifndef CONFIG_ODD_RT_SIGACTION
 768 asmlinkage long compat_sys_rt_sigaction(int,
 769                                  const struct compat_sigaction __user *,
 770                                  struct compat_sigaction __user *,
 771                                  compat_size_t);
 772 #endif
 773 asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
 774                                           compat_sigset_t __user *oset,
 775                                           compat_size_t sigsetsize);
 776 asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
 777                                          compat_size_t sigsetsize);
 778 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
 779                 struct compat_siginfo __user *uinfo,
 780                 struct compat_timespec __user *uts, compat_size_t sigsetsize);
 781 asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
 782                                 struct compat_siginfo __user *uinfo);
 783 /* No generic prototype for rt_sigreturn */
 784
 785 /* kernel/sys.c */
 786 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
 787 asmlinkage long compat_sys_getrlimit(unsigned int resource,
 788                                      struct compat_rlimit __user *rlim);
 789 asmlinkage long compat_sys_setrlimit(unsigned int resource,
 790                                      struct compat_rlimit __user *rlim);
 791 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
 792
 793 /* kernel/time.c */
 794 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
 795                 struct timezone __user *tz);
 796 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
 797                 struct timezone __user *tz);
 798 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
 799
 800 /* kernel/timer.c */
 801 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
 802
 803 /* ipc/mqueue.c */
 804 asmlinkage long compat_sys_mq_open(const char __user *u_name,
 805                         int oflag, compat_mode_t mode,
 806                         struct compat_mq_attr __user *u_attr);
 807 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
 808                         const char __user *u_msg_ptr,
 809                         compat_size_t msg_len, unsigned int msg_prio,
 810                         const struct compat_timespec __user *u_abs_timeout);
 811 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
 812                         char __user *u_msg_ptr,
 813                         compat_size_t msg_len, unsigned int __user *u_msg_prio,
 814                         const struct compat_timespec __user *u_abs_timeout);
 815 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
 816                         const struct compat_sigevent __user *u_notification);
 817 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
 818                         const struct compat_mq_attr __user *u_mqstat,
 819                         struct compat_mq_attr __user *u_omqstat);
 820
 821 /* ipc/msg.c */
 822 asmlinkage long compat_sys_msgctl(int first, int second, void __user *uptr);
 823 asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
 824                 compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg);
 825 asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
 826                 compat_ssize_t msgsz, int msgflg);
 827
 828 /* ipc/sem.c */
 829 asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
 830 asmlinkage long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
 831                 unsigned nsems, const struct compat_timespec __user *timeout);
 832
 833 /* ipc/shm.c */
 834 asmlinkage long compat_sys_shmctl(int first, int second, void __user *uptr);
 835 asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
 836
 837 /* net/socket.c */
 838 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len,
 839                             unsigned flags, struct sockaddr __user *addr,
 840                             int __user *addrlen);
 841 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
 842                                       char __user *optval, unsigned int optlen);
 843 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
 844                                       char __user *optval, int __user *optlen);
 845 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
 846                                    unsigned flags);
 847 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
 848                                    unsigned int flags);
 849
 850 /* mm/filemap.c: No generic prototype for readahead */
 851
 852 /* security/keys/keyctl.c */
 853 asmlinkage long compat_sys_keyctl(u32 option,
 854                               u32 arg2, u32 arg3, u32 arg4, u32 arg5);
 855
 856 /* arch/example/kernel/sys_example.c */
 857 asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
 858                      const compat_uptr_t __user *envp);
 859
 860 /* mm/fadvise.c: No generic prototype for fadvise64_64 */
 861
 862 /* mm/, CONFIG_MMU only */
 863 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
 864                                  compat_ulong_t mode,
 865                                  compat_ulong_t __user *nmask,
 866                                  compat_ulong_t maxnode, compat_ulong_t flags);
 867 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
 868                                          compat_ulong_t __user *nmask,
 869                                          compat_ulong_t maxnode,
 870                                          compat_ulong_t addr,
 871                                          compat_ulong_t flags);
 872 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
 873                                          compat_ulong_t maxnode);
 874 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
 875                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
 876                 const compat_ulong_t __user *new_nodes);
 877 asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages,
 878                                       __u32 __user *pages,
 879                                       const int __user *nodes,
 880                                       int __user *status,
 881                                       int flags);
 882
 883 asmlinkage long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid,
 884                                         compat_pid_t pid, int sig,
 885                                         struct compat_siginfo __user *uinfo);
 886 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
 887                                     unsigned vlen, unsigned int flags,
 888                                     struct compat_timespec __user *timeout);
 889 asmlinkage long compat_sys_wait4(compat_pid_t pid,
 890                                  compat_uint_t __user *stat_addr, int options,
 891                                  struct compat_rusage __user *ru);
 892 asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32,
 893                                             int, const char __user *);
 894 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
 895                                              struct file_handle __user *handle,
 896                                              int flags);
 897 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
 898                                          struct compat_timex __user *tp);
 899 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
 900                                     unsigned vlen, unsigned int flags);
 901 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
 902                 const struct compat_iovec __user *lvec,
 903                 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
 904                 compat_ulong_t riovcnt, compat_ulong_t flags);
 905 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
 906                 const struct compat_iovec __user *lvec,
 907                 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
 908                 compat_ulong_t riovcnt, compat_ulong_t flags);
 909 asmlinkage long compat_sys_execveat(int dfd, const char __user *filename,
 910                      const compat_uptr_t __user *argv,
 911                      const compat_uptr_t __user *envp, int flags);
 912 asmlinkage ssize_t compat_sys_preadv2(compat_ulong_t fd,
 913                 const struct compat_iovec __user *vec,
 914                 compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
 915 asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd,
 916                 const struct compat_iovec __user *vec,
 917                 compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
 918 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64V2
 919 asmlinkage long  compat_sys_readv64v2(unsigned long fd,
 920                 const struct compat_iovec __user *vec,
 921                 unsigned long vlen, loff_t pos, rwf_t flags);
 922 #endif
 923
 924 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64V2
 925 asmlinkage long compat_sys_pwritev64v2(unsigned long fd,
 926                 const struct compat_iovec __user *vec,
 927                 unsigned long vlen, loff_t pos, rwf_t flags);
 928 #endif
 929
 930
 931 /*
 932  * Deprecated system calls which are still defined in
 933  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
 934  */
 935
 936 /* __ARCH_WANT_SYSCALL_NO_AT */
 937 asmlinkage long compat_sys_open(const char __user *filename, int flags,
 938                                 umode_t mode);
 939 asmlinkage long compat_sys_utimes(const char __user *filename,
 940                                   struct compat_timeval __user *t);
 941
 942 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
 943 asmlinkage long compat_sys_signalfd(int ufd,
 944                                     const compat_sigset_t __user *sigmask,
 945                                     compat_size_t sigsetsize);
 946
 947 /* __ARCH_WANT_SYSCALL_OFF_T */
 948 asmlinkage long compat_sys_newstat(const char __user *filename,
 949                                    struct compat_stat __user *statbuf);
 950 asmlinkage long compat_sys_newlstat(const char __user *filename,
 951                                     struct compat_stat __user *statbuf);
 952
 953 /* __ARCH_WANT_SYSCALL_DEPRECATED */
 954 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
 955 asmlinkage long compat_sys_utime(const char __user *filename,
 956                                  struct compat_utimbuf __user *t);
 957 asmlinkage long compat_sys_futimesat(unsigned int dfd,
 958                                      const char __user *filename,
 959                                      struct compat_timeval __user *t);
 960 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
 961                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
 962                 struct compat_timeval __user *tvp);
 963 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
 964 asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len,
 965                                 unsigned flags);
 966 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
 967
 968 /* obsolete: fs/readdir.c */
 969 asmlinkage long compat_sys_old_readdir(unsigned int fd,
 970                                        struct compat_old_linux_dirent __user *,
 971                                        unsigned int count);
 972
 973 /* obsolete: fs/select.c */
 974 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
 975
 976 /* obsolete: ipc */
 977 asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
 978
 979 /* obsolete: kernel/signal.c */
 980 #ifdef __ARCH_WANT_SYS_SIGPENDING
 981 asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set);
 982 #endif
 983
 984 #ifdef __ARCH_WANT_SYS_SIGPROCMASK
 985 asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset,
 986                                        compat_old_sigset_t __user *oset);
 987 #endif
 988 #ifdef CONFIG_COMPAT_OLD_SIGACTION
 989 asmlinkage long compat_sys_sigaction(int sig,
 990                                    const struct compat_old_sigaction __user *act,
 991                                    struct compat_old_sigaction __user *oact);
 992 #endif
 993
 994 /* obsolete: kernel/time/time.c */
 995 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
 996
 997 /* obsolete: net/socket.c */
 998 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
 999
1000 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1001
1002
1003 /*
1004  * For most but not all architectures, "am I in a compat syscall?" and
1005  * "am I a compat task?" are the same question.  For architectures on which
1006  * they aren't the same question, arch code can override in_compat_syscall.
1007  */
1008
1009 #ifndef in_compat_syscall
1010 static inline bool in_compat_syscall(void) { return is_compat_task(); }
1011 #endif
1012
1013 /**
1014  * ns_to_compat_timeval - Compat version of ns_to_timeval
1015  * @nsec:       the nanoseconds value to be converted
1016  *
1017  * Returns the compat_timeval representation of the nsec parameter.
1018  */
1019 static inline struct compat_timeval ns_to_compat_timeval(s64 nsec)
1020 {
1021         struct timeval tv;
1022         struct compat_timeval ctv;
1023
1024         tv = ns_to_timeval(nsec);
1025         ctv.tv_sec = tv.tv_sec;
1026         ctv.tv_usec = tv.tv_usec;
1027
1028         return ctv;
1029 }
1030
1031 #else /* !CONFIG_COMPAT */
1032
1033 #define is_compat_task() (0)
1034 #ifndef in_compat_syscall
1035 static inline bool in_compat_syscall(void) { return false; }
1036 #endif
1037
1038 #endif /* CONFIG_COMPAT */
1039
1040 #endif /* _LINUX_COMPAT_H */