contrib/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h

   1 //===-- sanitizer_platform_limits_posix.h ---------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file is a part of Sanitizer common code.
  11 //
  12 // Sizes and layouts of platform-specific POSIX data structures.
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
  16 #define SANITIZER_PLATFORM_LIMITS_POSIX_H
  17
  18 #include "sanitizer_internal_defs.h"
  19 #include "sanitizer_platform.h"
  20
  21 #if SANITIZER_FREEBSD
  22 // FreeBSD's dlopen() returns a pointer to an Obj_Entry structure that
  23 // incorporates the map structure.
  24 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) \
  25     ((link_map*)((handle) == nullptr ? nullptr : ((char*)(handle) + 544)))
  26 // Get sys/_types.h, because that tells us whether 64-bit inodes are
  27 // used in struct dirent below.
  28 #include <sys/_types.h>
  29 #else
  30 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
  31 #endif  // !SANITIZER_FREEBSD
  32
  33 #ifndef __GLIBC_PREREQ
  34 #define __GLIBC_PREREQ(x, y) 0
  35 #endif
  36
  37 namespace __sanitizer {
  38   extern unsigned struct_utsname_sz;
  39   extern unsigned struct_stat_sz;
  40 #if !SANITIZER_FREEBSD && !SANITIZER_IOS
  41   extern unsigned struct_stat64_sz;
  42 #endif
  43   extern unsigned struct_rusage_sz;
  44   extern unsigned siginfo_t_sz;
  45   extern unsigned struct_itimerval_sz;
  46   extern unsigned pthread_t_sz;
  47   extern unsigned pthread_cond_t_sz;
  48   extern unsigned pid_t_sz;
  49   extern unsigned timeval_sz;
  50   extern unsigned uid_t_sz;
  51   extern unsigned gid_t_sz;
  52   extern unsigned mbstate_t_sz;
  53   extern unsigned struct_timezone_sz;
  54   extern unsigned struct_tms_sz;
  55   extern unsigned struct_itimerspec_sz;
  56   extern unsigned struct_sigevent_sz;
  57   extern unsigned struct_sched_param_sz;
  58   extern unsigned struct_statfs64_sz;
  59
  60 #if !SANITIZER_ANDROID
  61   extern unsigned struct_statfs_sz;
  62   extern unsigned struct_sockaddr_sz;
  63   extern unsigned ucontext_t_sz;
  64 #endif // !SANITIZER_ANDROID
  65
  66 #if SANITIZER_LINUX
  67
  68 #if defined(__x86_64__)
  69   const unsigned struct_kernel_stat_sz = 144;
  70   const unsigned struct_kernel_stat64_sz = 0;
  71 #elif defined(__i386__)
  72   const unsigned struct_kernel_stat_sz = 64;
  73   const unsigned struct_kernel_stat64_sz = 96;
  74 #elif defined(__arm__)
  75   const unsigned struct_kernel_stat_sz = 64;
  76   const unsigned struct_kernel_stat64_sz = 104;
  77 #elif defined(__aarch64__)
  78   const unsigned struct_kernel_stat_sz = 128;
  79   const unsigned struct_kernel_stat64_sz = 104;
  80 #elif defined(__powerpc__) && !defined(__powerpc64__)
  81   const unsigned struct_kernel_stat_sz = 72;
  82   const unsigned struct_kernel_stat64_sz = 104;
  83 #elif defined(__powerpc64__)
  84   const unsigned struct_kernel_stat_sz = 144;
  85   const unsigned struct_kernel_stat64_sz = 104;
  86 #elif defined(__riscv__)
  87   /* RISCVTODO: check that these values are correct */
  88   const unsigned struct_kernel_stat_sz = 128;
  89   const unsigned struct_kernel_stat64_sz = 128;
  90 #elif defined(__mips__)
  91   const unsigned struct_kernel_stat_sz =
  92                  SANITIZER_ANDROID ? FIRST_32_SECOND_64(104, 128) :
  93                                      FIRST_32_SECOND_64(160, 216);
  94   const unsigned struct_kernel_stat64_sz = 104;
  95 #elif defined(__s390__) && !defined(__s390x__)
  96   const unsigned struct_kernel_stat_sz = 64;
  97   const unsigned struct_kernel_stat64_sz = 104;
  98 #elif defined(__s390x__)
  99   const unsigned struct_kernel_stat_sz = 144;
 100   const unsigned struct_kernel_stat64_sz = 0;
 101 #elif defined(__sparc__) && defined(__arch64__)
 102   const unsigned struct___old_kernel_stat_sz = 0;
 103   const unsigned struct_kernel_stat_sz = 104;
 104   const unsigned struct_kernel_stat64_sz = 144;
 105 #elif defined(__sparc__) && !defined(__arch64__)
 106   const unsigned struct___old_kernel_stat_sz = 0;
 107   const unsigned struct_kernel_stat_sz = 64;
 108   const unsigned struct_kernel_stat64_sz = 104;
 109 #endif
 110   struct __sanitizer_perf_event_attr {
 111     unsigned type;
 112     unsigned size;
 113     // More fields that vary with the kernel version.
 114   };
 115
 116   extern unsigned struct_epoll_event_sz;
 117   extern unsigned struct_sysinfo_sz;
 118   extern unsigned __user_cap_header_struct_sz;
 119   extern unsigned __user_cap_data_struct_sz;
 120   extern unsigned struct_new_utsname_sz;
 121   extern unsigned struct_old_utsname_sz;
 122   extern unsigned struct_oldold_utsname_sz;
 123
 124   const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
 125 #endif  // SANITIZER_LINUX
 126
 127 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 128
 129 #if defined(__powerpc64__) || defined(__riscv__) || defined(__s390__)
 130   const unsigned struct___old_kernel_stat_sz = 0;
 131 #elif !defined(__sparc__)
 132   const unsigned struct___old_kernel_stat_sz = 32;
 133 #endif
 134
 135   extern unsigned struct_rlimit_sz;
 136   extern unsigned struct_utimbuf_sz;
 137   extern unsigned struct_timespec_sz;
 138
 139   struct __sanitizer_iocb {
 140     u64   aio_data;
 141     u32   aio_key_or_aio_reserved1; // Simply crazy.
 142     u32   aio_reserved1_or_aio_key; // Luckily, we don't need these.
 143     u16   aio_lio_opcode;
 144     s16   aio_reqprio;
 145     u32   aio_fildes;
 146     u64   aio_buf;
 147     u64   aio_nbytes;
 148     s64   aio_offset;
 149     u64   aio_reserved2;
 150     u64   aio_reserved3;
 151   };
 152
 153   struct __sanitizer_io_event {
 154     u64 data;
 155     u64 obj;
 156     u64 res;
 157     u64 res2;
 158   };
 159
 160   const unsigned iocb_cmd_pread = 0;
 161   const unsigned iocb_cmd_pwrite = 1;
 162   const unsigned iocb_cmd_preadv = 7;
 163   const unsigned iocb_cmd_pwritev = 8;
 164
 165   struct __sanitizer___sysctl_args {
 166     int *name;
 167     int nlen;
 168     void *oldval;
 169     uptr *oldlenp;
 170     void *newval;
 171     uptr newlen;
 172     unsigned long ___unused[4];
 173   };
 174
 175   const unsigned old_sigset_t_sz = sizeof(unsigned long);
 176
 177   struct __sanitizer_sem_t {
 178 #if SANITIZER_ANDROID && defined(_LP64)
 179     int data[4];
 180 #elif SANITIZER_ANDROID && !defined(_LP64)
 181     int data;
 182 #elif SANITIZER_LINUX
 183     uptr data[4];
 184 #elif SANITIZER_FREEBSD
 185     u32 data[4];
 186 #endif
 187   };
 188 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 189
 190 #if SANITIZER_ANDROID
 191   struct __sanitizer_mallinfo {
 192     uptr v[10];
 193   };
 194 #endif
 195
 196 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 197   struct __sanitizer_mallinfo {
 198     int v[10];
 199   };
 200
 201   extern unsigned struct_ustat_sz;
 202   extern unsigned struct_rlimit64_sz;
 203   extern unsigned struct_statvfs64_sz;
 204
 205   struct __sanitizer_ipc_perm {
 206     int __key;
 207     int uid;
 208     int gid;
 209     int cuid;
 210     int cgid;
 211 #ifdef __powerpc__
 212     unsigned mode;
 213     unsigned __seq;
 214     u64 __unused1;
 215     u64 __unused2;
 216 #elif defined(__sparc__)
 217 #if defined(__arch64__)
 218     unsigned mode;
 219     unsigned short __pad1;
 220 #else
 221     unsigned short __pad1;
 222     unsigned short mode;
 223     unsigned short __pad2;
 224 #endif
 225     unsigned short __seq;
 226     unsigned long long __unused1;
 227     unsigned long long __unused2;
 228 #elif defined(__mips__) || defined(__aarch64__) || defined(__s390x__)
 229     unsigned int mode;
 230     unsigned short __seq;
 231     unsigned short __pad1;
 232     unsigned long __unused1;
 233     unsigned long __unused2;
 234 #else
 235     unsigned short mode;
 236     unsigned short __pad1;
 237     unsigned short __seq;
 238     unsigned short __pad2;
 239 #if defined(__x86_64__) && !defined(_LP64)
 240     u64 __unused1;
 241     u64 __unused2;
 242 #else
 243     unsigned long __unused1;
 244     unsigned long __unused2;
 245 #endif
 246 #endif
 247   };
 248
 249   struct __sanitizer_shmid_ds {
 250     __sanitizer_ipc_perm shm_perm;
 251   #if defined(__sparc__)
 252   #if !defined(__arch64__)
 253     u32 __pad1;
 254   #endif
 255     long shm_atime;
 256   #if !defined(__arch64__)
 257     u32 __pad2;
 258   #endif
 259     long shm_dtime;
 260   #if !defined(__arch64__)
 261     u32 __pad3;
 262   #endif
 263     long shm_ctime;
 264     uptr shm_segsz;
 265     int shm_cpid;
 266     int shm_lpid;
 267     unsigned long shm_nattch;
 268     unsigned long __glibc_reserved1;
 269     unsigned long __glibc_reserved2;
 270   #else
 271   #ifndef __powerpc__
 272     uptr shm_segsz;
 273   #elif !defined(__powerpc64__)
 274     uptr __unused0;
 275   #endif
 276   #if defined(__x86_64__) && !defined(_LP64)
 277     u64 shm_atime;
 278     u64 shm_dtime;
 279     u64 shm_ctime;
 280   #else
 281     uptr shm_atime;
 282   #if !defined(_LP64) && !defined(__mips__)
 283     uptr __unused1;
 284   #endif
 285     uptr shm_dtime;
 286   #if !defined(_LP64) && !defined(__mips__)
 287     uptr __unused2;
 288   #endif
 289     uptr shm_ctime;
 290   #if !defined(_LP64) && !defined(__mips__)
 291     uptr __unused3;
 292   #endif
 293   #endif
 294   #ifdef __powerpc__
 295     uptr shm_segsz;
 296   #endif
 297     int shm_cpid;
 298     int shm_lpid;
 299   #if defined(__x86_64__) && !defined(_LP64)
 300     u64 shm_nattch;
 301     u64 __unused4;
 302     u64 __unused5;
 303   #else
 304     uptr shm_nattch;
 305     uptr __unused4;
 306     uptr __unused5;
 307   #endif
 308 #endif
 309   };
 310 #elif SANITIZER_FREEBSD
 311   struct __sanitizer_ipc_perm {
 312     unsigned int cuid;
 313     unsigned int cgid;
 314     unsigned int uid;
 315     unsigned int gid;
 316     unsigned short mode;
 317     unsigned short seq;
 318     long key;
 319   };
 320
 321   struct __sanitizer_shmid_ds {
 322     __sanitizer_ipc_perm shm_perm;
 323     unsigned long shm_segsz;
 324     unsigned int shm_lpid;
 325     unsigned int shm_cpid;
 326     int shm_nattch;
 327     unsigned long shm_atime;
 328     unsigned long shm_dtime;
 329     unsigned long shm_ctime;
 330   };
 331 #endif
 332
 333 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 334   extern unsigned struct_msqid_ds_sz;
 335   extern unsigned struct_mq_attr_sz;
 336   extern unsigned struct_timex_sz;
 337   extern unsigned struct_statvfs_sz;
 338 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 339
 340   struct __sanitizer_iovec {
 341     void *iov_base;
 342     uptr iov_len;
 343   };
 344
 345 #if !SANITIZER_ANDROID
 346   struct __sanitizer_ifaddrs {
 347     struct __sanitizer_ifaddrs *ifa_next;
 348     char *ifa_name;
 349     unsigned int ifa_flags;
 350     void *ifa_addr;    // (struct sockaddr *)
 351     void *ifa_netmask; // (struct sockaddr *)
 352     // This is a union on Linux.
 353 # ifdef ifa_dstaddr
 354 # undef ifa_dstaddr
 355 # endif
 356     void *ifa_dstaddr; // (struct sockaddr *)
 357     void *ifa_data;
 358   };
 359 #endif  // !SANITIZER_ANDROID
 360
 361 #if SANITIZER_MAC
 362   typedef unsigned long __sanitizer_pthread_key_t;
 363 #else
 364   typedef unsigned __sanitizer_pthread_key_t;
 365 #endif
 366
 367 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 368
 369   struct __sanitizer_XDR {
 370     int x_op;
 371     void *x_ops;
 372     uptr x_public;
 373     uptr x_private;
 374     uptr x_base;
 375     unsigned x_handy;
 376   };
 377
 378   const int __sanitizer_XDR_ENCODE = 0;
 379   const int __sanitizer_XDR_DECODE = 1;
 380   const int __sanitizer_XDR_FREE = 2;
 381 #endif
 382
 383   struct __sanitizer_passwd {
 384     char *pw_name;
 385     char *pw_passwd;
 386     int pw_uid;
 387     int pw_gid;
 388 #if SANITIZER_MAC || SANITIZER_FREEBSD
 389     long pw_change;
 390     char *pw_class;
 391 #endif
 392 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
 393     char *pw_gecos;
 394 #endif
 395     char *pw_dir;
 396     char *pw_shell;
 397 #if SANITIZER_MAC || SANITIZER_FREEBSD
 398     long pw_expire;
 399 #endif
 400 #if SANITIZER_FREEBSD
 401     int pw_fields;
 402 #endif
 403   };
 404
 405   struct __sanitizer_group {
 406     char *gr_name;
 407     char *gr_passwd;
 408     int gr_gid;
 409     char **gr_mem;
 410   };
 411
 412 #if defined(__x86_64__) && !defined(_LP64)
 413   typedef long long __sanitizer_time_t;
 414 #else
 415   typedef long __sanitizer_time_t;
 416 #endif
 417
 418   struct __sanitizer_timeb {
 419     __sanitizer_time_t time;
 420     unsigned short millitm;
 421     short timezone;
 422     short dstflag;
 423   };
 424
 425   struct __sanitizer_ether_addr {
 426     u8 octet[6];
 427   };
 428
 429   struct __sanitizer_tm {
 430     int tm_sec;
 431     int tm_min;
 432     int tm_hour;
 433     int tm_mday;
 434     int tm_mon;
 435     int tm_year;
 436     int tm_wday;
 437     int tm_yday;
 438     int tm_isdst;
 439     long int tm_gmtoff;
 440     const char *tm_zone;
 441   };
 442
 443 #if SANITIZER_LINUX
 444   struct __sanitizer_mntent {
 445     char *mnt_fsname;
 446     char *mnt_dir;
 447     char *mnt_type;
 448     char *mnt_opts;
 449     int mnt_freq;
 450     int mnt_passno;
 451   };
 452 #endif
 453
 454 #if SANITIZER_MAC || SANITIZER_FREEBSD
 455   struct __sanitizer_msghdr {
 456     void *msg_name;
 457     unsigned msg_namelen;
 458     struct __sanitizer_iovec *msg_iov;
 459     unsigned msg_iovlen;
 460     void *msg_control;
 461     unsigned msg_controllen;
 462     int msg_flags;
 463   };
 464   struct __sanitizer_cmsghdr {
 465     unsigned cmsg_len;
 466     int cmsg_level;
 467     int cmsg_type;
 468   };
 469 #else
 470   struct __sanitizer_msghdr {
 471     void *msg_name;
 472     unsigned msg_namelen;
 473     struct __sanitizer_iovec *msg_iov;
 474     uptr msg_iovlen;
 475     void *msg_control;
 476     uptr msg_controllen;
 477     int msg_flags;
 478   };
 479   struct __sanitizer_cmsghdr {
 480     uptr cmsg_len;
 481     int cmsg_level;
 482     int cmsg_type;
 483   };
 484 #endif
 485
 486 #if SANITIZER_MAC
 487   struct __sanitizer_dirent {
 488     unsigned long long d_ino;
 489     unsigned long long d_seekoff;
 490     unsigned short d_reclen;
 491     // more fields that we don't care about
 492   };
 493 #elif SANITIZER_FREEBSD
 494   struct __sanitizer_dirent {
 495 #if defined(__INO64)
 496     unsigned long long d_fileno;
 497     unsigned long long d_off;
 498 #else
 499     unsigned int d_fileno;
 500 #endif
 501     unsigned short d_reclen;
 502     // more fields that we don't care about
 503   };
 504 #elif SANITIZER_ANDROID || defined(__x86_64__)
 505   struct __sanitizer_dirent {
 506     unsigned long long d_ino;
 507     unsigned long long d_off;
 508     unsigned short d_reclen;
 509     // more fields that we don't care about
 510   };
 511 #else
 512   struct __sanitizer_dirent {
 513     uptr d_ino;
 514     uptr d_off;
 515     unsigned short d_reclen;
 516     // more fields that we don't care about
 517   };
 518 #endif
 519
 520 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 521   struct __sanitizer_dirent64 {
 522     unsigned long long d_ino;
 523     unsigned long long d_off;
 524     unsigned short d_reclen;
 525     // more fields that we don't care about
 526   };
 527 #endif
 528
 529 // 'clock_t' is 32 bits wide on x64 FreeBSD
 530 #if SANITIZER_FREEBSD
 531   typedef int __sanitizer_clock_t;
 532 #elif defined(__x86_64__) && !defined(_LP64)
 533   typedef long long __sanitizer_clock_t;
 534 #else
 535   typedef long __sanitizer_clock_t;
 536 #endif
 537
 538 #if SANITIZER_LINUX
 539   typedef int __sanitizer_clockid_t;
 540 #endif
 541
 542 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 543 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)\
 544                    || defined(__mips__)
 545   typedef unsigned __sanitizer___kernel_uid_t;
 546   typedef unsigned __sanitizer___kernel_gid_t;
 547 #else
 548   typedef unsigned short __sanitizer___kernel_uid_t;
 549   typedef unsigned short __sanitizer___kernel_gid_t;
 550 #endif
 551 #if defined(__x86_64__) && !defined(_LP64)
 552   typedef long long __sanitizer___kernel_off_t;
 553 #else
 554   typedef long __sanitizer___kernel_off_t;
 555 #endif
 556
 557 #if defined(__powerpc__) || defined(__mips__) || defined(__riscv__)
 558   typedef unsigned int __sanitizer___kernel_old_uid_t;
 559   typedef unsigned int __sanitizer___kernel_old_gid_t;
 560 #else
 561   typedef unsigned short __sanitizer___kernel_old_uid_t;
 562   typedef unsigned short __sanitizer___kernel_old_gid_t;
 563 #endif
 564
 565   typedef long long __sanitizer___kernel_loff_t;
 566   typedef struct {
 567     unsigned long fds_bits[1024 / (8 * sizeof(long))];
 568   } __sanitizer___kernel_fd_set;
 569 #endif
 570
 571   // This thing depends on the platform. We are only interested in the upper
 572   // limit. Verified with a compiler assert in .cc.
 573   const int pthread_attr_t_max_sz = 128;
 574   union __sanitizer_pthread_attr_t {
 575     char size[pthread_attr_t_max_sz]; // NOLINT
 576     void *align;
 577   };
 578
 579 #if SANITIZER_ANDROID
 580 # if SANITIZER_MIPS
 581   typedef unsigned long __sanitizer_sigset_t[16/sizeof(unsigned long)];
 582 # else
 583   typedef unsigned long __sanitizer_sigset_t;
 584 # endif
 585 #elif SANITIZER_MAC
 586   typedef unsigned __sanitizer_sigset_t;
 587 #elif SANITIZER_LINUX
 588   struct __sanitizer_sigset_t {
 589     // The size is determined by looking at sizeof of real sigset_t on linux.
 590     uptr val[128 / sizeof(uptr)];
 591   };
 592 #elif SANITIZER_FREEBSD
 593   struct __sanitizer_sigset_t {
 594      // uint32_t * 4
 595      unsigned int __bits[4];
 596   };
 597 #endif
 598
 599   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 600 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
 601   struct __sanitizer_sigaction {
 602     unsigned sa_flags;
 603     union {
 604       void (*sigaction)(int sig, void *siginfo, void *uctx);
 605       void (*handler)(int sig);
 606     };
 607     __sanitizer_sigset_t sa_mask;
 608     void (*sa_restorer)();
 609   };
 610 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
 611   struct __sanitizer_sigaction {
 612     unsigned sa_flags;
 613     union {
 614       void (*sigaction)(int sig, void *siginfo, void *uctx);
 615       void (*handler)(int sig);
 616     };
 617     __sanitizer_sigset_t sa_mask;
 618   };
 619 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
 620   struct __sanitizer_sigaction {
 621     union {
 622       void (*sigaction)(int sig, void *siginfo, void *uctx);
 623       void (*handler)(int sig);
 624     };
 625     __sanitizer_sigset_t sa_mask;
 626     uptr sa_flags;
 627     void (*sa_restorer)();
 628   };
 629 #else // !SANITIZER_ANDROID
 630   struct __sanitizer_sigaction {
 631 #if defined(__mips__) && !SANITIZER_FREEBSD
 632     unsigned int sa_flags;
 633 #endif
 634     union {
 635       void (*sigaction)(int sig, void *siginfo, void *uctx);
 636       void (*handler)(int sig);
 637     };
 638 #if SANITIZER_FREEBSD
 639     int sa_flags;
 640     __sanitizer_sigset_t sa_mask;
 641 #else
 642 #if defined(__s390x__)
 643     int sa_resv;
 644 #else
 645     __sanitizer_sigset_t sa_mask;
 646 #endif
 647 #ifndef __mips__
 648 #if defined(__sparc__)
 649 #if __GLIBC_PREREQ (2, 20)
 650     // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
 651 #if defined(__arch64__)
 652     // To maintain ABI compatibility on sparc64 when switching to an int,
 653     // __glibc_reserved0 was added.
 654     int __glibc_reserved0;
 655 #endif
 656     int sa_flags;
 657 #else
 658     unsigned long sa_flags;
 659 #endif
 660 #else
 661     int sa_flags;
 662 #endif
 663 #endif
 664 #endif
 665 #if SANITIZER_LINUX
 666     void (*sa_restorer)();
 667 #endif
 668 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
 669     int sa_resv[1];
 670 #endif
 671 #if defined(__s390x__)
 672     __sanitizer_sigset_t sa_mask;
 673 #endif
 674   };
 675 #endif // !SANITIZER_ANDROID
 676
 677 #if SANITIZER_FREEBSD
 678   typedef __sanitizer_sigset_t __sanitizer_kernel_sigset_t;
 679 #elif defined(__mips__)
 680   struct __sanitizer_kernel_sigset_t {
 681     uptr sig[2];
 682   };
 683 #else
 684   struct __sanitizer_kernel_sigset_t {
 685     u8 sig[8];
 686   };
 687 #endif
 688
 689   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 690 #if SANITIZER_MIPS
 691   struct __sanitizer_kernel_sigaction_t {
 692     unsigned int sa_flags;
 693     union {
 694       void (*handler)(int signo);
 695       void (*sigaction)(int signo, void *info, void *ctx);
 696     };
 697     __sanitizer_kernel_sigset_t sa_mask;
 698     void (*sa_restorer)(void);
 699   };
 700 #else
 701   struct __sanitizer_kernel_sigaction_t {
 702     union {
 703       void (*handler)(int signo);
 704       void (*sigaction)(int signo, void *info, void *ctx);
 705     };
 706     unsigned long sa_flags;
 707     void (*sa_restorer)(void);
 708     __sanitizer_kernel_sigset_t sa_mask;
 709   };
 710 #endif
 711
 712   extern uptr sig_ign;
 713   extern uptr sig_dfl;
 714   extern uptr sa_siginfo;
 715
 716 #if SANITIZER_LINUX
 717   extern int e_tabsz;
 718 #endif
 719
 720   extern int af_inet;
 721   extern int af_inet6;
 722   uptr __sanitizer_in_addr_sz(int af);
 723
 724 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 725   struct __sanitizer_dl_phdr_info {
 726     uptr dlpi_addr;
 727     const char *dlpi_name;
 728     const void *dlpi_phdr;
 729     short dlpi_phnum;
 730   };
 731
 732   extern unsigned struct_ElfW_Phdr_sz;
 733 #endif
 734
 735   struct __sanitizer_addrinfo {
 736     int ai_flags;
 737     int ai_family;
 738     int ai_socktype;
 739     int ai_protocol;
 740 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 741     unsigned ai_addrlen;
 742     char *ai_canonname;
 743     void *ai_addr;
 744 #else // LINUX
 745     unsigned ai_addrlen;
 746     void *ai_addr;
 747     char *ai_canonname;
 748 #endif
 749     struct __sanitizer_addrinfo *ai_next;
 750   };
 751
 752   struct __sanitizer_hostent {
 753     char *h_name;
 754     char **h_aliases;
 755     int h_addrtype;
 756     int h_length;
 757     char **h_addr_list;
 758   };
 759
 760   struct __sanitizer_pollfd {
 761     int fd;
 762     short events;
 763     short revents;
 764   };
 765
 766 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 767   typedef unsigned __sanitizer_nfds_t;
 768 #else
 769   typedef unsigned long __sanitizer_nfds_t;
 770 #endif
 771
 772 #if !SANITIZER_ANDROID
 773 # if SANITIZER_LINUX
 774   struct __sanitizer_glob_t {
 775     uptr gl_pathc;
 776     char **gl_pathv;
 777     uptr gl_offs;
 778     int gl_flags;
 779
 780     void (*gl_closedir)(void *dirp);
 781     void *(*gl_readdir)(void *dirp);
 782     void *(*gl_opendir)(const char *);
 783     int (*gl_lstat)(const char *, void *);
 784     int (*gl_stat)(const char *, void *);
 785   };
 786 # elif SANITIZER_FREEBSD
 787   struct __sanitizer_glob_t {
 788     uptr gl_pathc;
 789     uptr gl_matchc;
 790     uptr gl_offs;
 791     int gl_flags;
 792     char **gl_pathv;
 793     int (*gl_errfunc)(const char*, int);
 794     void (*gl_closedir)(void *dirp);
 795     struct dirent *(*gl_readdir)(void *dirp);
 796     void *(*gl_opendir)(const char*);
 797     int (*gl_lstat)(const char*, void* /* struct stat* */);
 798     int (*gl_stat)(const char*, void* /* struct stat* */);
 799   };
 800 # endif  // SANITIZER_FREEBSD
 801
 802 # if SANITIZER_LINUX || SANITIZER_FREEBSD
 803   extern int glob_nomatch;
 804   extern int glob_altdirfunc;
 805 # endif
 806 #endif  // !SANITIZER_ANDROID
 807
 808   extern unsigned path_max;
 809
 810   struct __sanitizer_wordexp_t {
 811     uptr we_wordc;
 812     char **we_wordv;
 813     uptr we_offs;
 814 #if SANITIZER_FREEBSD
 815     char *we_strings;
 816     uptr we_nbytes;
 817 #endif
 818   };
 819
 820 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 821   struct __sanitizer_FILE {
 822     int _flags;
 823     char *_IO_read_ptr;
 824     char *_IO_read_end;
 825     char *_IO_read_base;
 826     char *_IO_write_base;
 827     char *_IO_write_ptr;
 828     char *_IO_write_end;
 829     char *_IO_buf_base;
 830     char *_IO_buf_end;
 831     char *_IO_save_base;
 832     char *_IO_backup_base;
 833     char *_IO_save_end;
 834     void *_markers;
 835     __sanitizer_FILE *_chain;
 836     int _fileno;
 837   };
 838 # define SANITIZER_HAS_STRUCT_FILE 1
 839 #else
 840   typedef void __sanitizer_FILE;
 841 # define SANITIZER_HAS_STRUCT_FILE 0
 842 #endif
 843
 844 #if SANITIZER_LINUX && !SANITIZER_ANDROID && \
 845   (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
 846     defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
 847     defined(__s390__))
 848   extern unsigned struct_user_regs_struct_sz;
 849   extern unsigned struct_user_fpregs_struct_sz;
 850   extern unsigned struct_user_fpxregs_struct_sz;
 851   extern unsigned struct_user_vfpregs_struct_sz;
 852
 853   extern int ptrace_peektext;
 854   extern int ptrace_peekdata;
 855   extern int ptrace_peekuser;
 856   extern int ptrace_getregs;
 857   extern int ptrace_setregs;
 858   extern int ptrace_getfpregs;
 859   extern int ptrace_setfpregs;
 860   extern int ptrace_getfpxregs;
 861   extern int ptrace_setfpxregs;
 862   extern int ptrace_getvfpregs;
 863   extern int ptrace_setvfpregs;
 864   extern int ptrace_getsiginfo;
 865   extern int ptrace_setsiginfo;
 866   extern int ptrace_getregset;
 867   extern int ptrace_setregset;
 868   extern int ptrace_geteventmsg;
 869 #endif
 870
 871 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 872   extern unsigned struct_shminfo_sz;
 873   extern unsigned struct_shm_info_sz;
 874   extern int shmctl_ipc_stat;
 875   extern int shmctl_ipc_info;
 876   extern int shmctl_shm_info;
 877   extern int shmctl_shm_stat;
 878 #endif
 879
 880 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
 881   extern unsigned struct_utmp_sz;
 882 #endif
 883 #if !SANITIZER_ANDROID
 884   extern unsigned struct_utmpx_sz;
 885 #endif
 886
 887   extern int map_fixed;
 888
 889   // ioctl arguments
 890   struct __sanitizer_ifconf {
 891     int ifc_len;
 892     union {
 893       void *ifcu_req;
 894     } ifc_ifcu;
 895 #if SANITIZER_MAC
 896   } __attribute__((packed));
 897 #else
 898   };
 899 #endif
 900
 901 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 902 struct __sanitizer__obstack_chunk {
 903   char *limit;
 904   struct __sanitizer__obstack_chunk *prev;
 905 };
 906
 907 struct __sanitizer_obstack {
 908   long chunk_size;
 909   struct __sanitizer__obstack_chunk *chunk;
 910   char *object_base;
 911   char *next_free;
 912   uptr more_fields[7];
 913 };
 914
 915 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
 916 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
 917                                             uptr size);
 918 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
 919                                           int whence);
 920 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
 921
 922 struct __sanitizer_cookie_io_functions_t {
 923   __sanitizer_cookie_io_read read;
 924   __sanitizer_cookie_io_write write;
 925   __sanitizer_cookie_io_seek seek;
 926   __sanitizer_cookie_io_close close;
 927 };
 928 #endif
 929
 930 #define IOC_NRBITS 8
 931 #define IOC_TYPEBITS 8
 932 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
 933     defined(__sparc__)
 934 #define IOC_SIZEBITS 13
 935 #define IOC_DIRBITS 3
 936 #define IOC_NONE 1U
 937 #define IOC_WRITE 4U
 938 #define IOC_READ 2U
 939 #else
 940 #define IOC_SIZEBITS 14
 941 #define IOC_DIRBITS 2
 942 #define IOC_NONE 0U
 943 #define IOC_WRITE 1U
 944 #define IOC_READ 2U
 945 #endif
 946 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
 947 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
 948 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
 949 #if defined(IOC_DIRMASK)
 950 #undef IOC_DIRMASK
 951 #endif
 952 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
 953 #define IOC_NRSHIFT 0
 954 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
 955 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
 956 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
 957 #define EVIOC_EV_MAX 0x1f
 958 #define EVIOC_ABS_MAX 0x3f
 959
 960 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
 961 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
 962 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
 963
 964 #if defined(__sparc__)
 965 // In sparc the 14 bits SIZE field overlaps with the
 966 // least significant bit of DIR, so either IOC_READ or
 967 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
 968 #define IOC_SIZE(nr) \
 969   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
 970 #else
 971 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
 972 #endif
 973
 974   extern unsigned struct_ifreq_sz;
 975   extern unsigned struct_termios_sz;
 976   extern unsigned struct_winsize_sz;
 977
 978 #if SANITIZER_LINUX
 979   extern unsigned struct_arpreq_sz;
 980   extern unsigned struct_cdrom_msf_sz;
 981   extern unsigned struct_cdrom_multisession_sz;
 982   extern unsigned struct_cdrom_read_audio_sz;
 983   extern unsigned struct_cdrom_subchnl_sz;
 984   extern unsigned struct_cdrom_ti_sz;
 985   extern unsigned struct_cdrom_tocentry_sz;
 986   extern unsigned struct_cdrom_tochdr_sz;
 987   extern unsigned struct_cdrom_volctrl_sz;
 988   extern unsigned struct_ff_effect_sz;
 989   extern unsigned struct_floppy_drive_params_sz;
 990   extern unsigned struct_floppy_drive_struct_sz;
 991   extern unsigned struct_floppy_fdc_state_sz;
 992   extern unsigned struct_floppy_max_errors_sz;
 993   extern unsigned struct_floppy_raw_cmd_sz;
 994   extern unsigned struct_floppy_struct_sz;
 995   extern unsigned struct_floppy_write_errors_sz;
 996   extern unsigned struct_format_descr_sz;
 997   extern unsigned struct_hd_driveid_sz;
 998   extern unsigned struct_hd_geometry_sz;
 999   extern unsigned struct_input_absinfo_sz;
1000   extern unsigned struct_input_id_sz;
1001   extern unsigned struct_mtpos_sz;
1002   extern unsigned struct_termio_sz;
1003   extern unsigned struct_vt_consize_sz;
1004   extern unsigned struct_vt_sizes_sz;
1005   extern unsigned struct_vt_stat_sz;
1006 #endif  // SANITIZER_LINUX
1007
1008 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1009   extern unsigned struct_copr_buffer_sz;
1010   extern unsigned struct_copr_debug_buf_sz;
1011   extern unsigned struct_copr_msg_sz;
1012   extern unsigned struct_midi_info_sz;
1013   extern unsigned struct_mtget_sz;
1014   extern unsigned struct_mtop_sz;
1015   extern unsigned struct_rtentry_sz;
1016   extern unsigned struct_sbi_instrument_sz;
1017   extern unsigned struct_seq_event_rec_sz;
1018   extern unsigned struct_synth_info_sz;
1019   extern unsigned struct_vt_mode_sz;
1020 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1021
1022 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1023   extern unsigned struct_ax25_parms_struct_sz;
1024   extern unsigned struct_cyclades_monitor_sz;
1025   extern unsigned struct_input_keymap_entry_sz;
1026   extern unsigned struct_ipx_config_data_sz;
1027   extern unsigned struct_kbdiacrs_sz;
1028   extern unsigned struct_kbentry_sz;
1029   extern unsigned struct_kbkeycode_sz;
1030   extern unsigned struct_kbsentry_sz;
1031   extern unsigned struct_mtconfiginfo_sz;
1032   extern unsigned struct_nr_parms_struct_sz;
1033   extern unsigned struct_scc_modem_sz;
1034   extern unsigned struct_scc_stat_sz;
1035   extern unsigned struct_serial_multiport_struct_sz;
1036   extern unsigned struct_serial_struct_sz;
1037   extern unsigned struct_sockaddr_ax25_sz;
1038   extern unsigned struct_unimapdesc_sz;
1039   extern unsigned struct_unimapinit_sz;
1040 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1041
1042 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1043   extern unsigned struct_audio_buf_info_sz;
1044   extern unsigned struct_ppp_stats_sz;
1045 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1046
1047 #if !SANITIZER_ANDROID && !SANITIZER_MAC
1048   extern unsigned struct_sioc_sg_req_sz;
1049   extern unsigned struct_sioc_vif_req_sz;
1050 #endif
1051
1052   // ioctl request identifiers
1053
1054   // A special value to mark ioctls that are not present on the target platform,
1055   // when it can not be determined without including any system headers.
1056   extern const unsigned IOCTL_NOT_PRESENT;
1057
1058   extern unsigned IOCTL_FIOASYNC;
1059   extern unsigned IOCTL_FIOCLEX;
1060   extern unsigned IOCTL_FIOGETOWN;
1061   extern unsigned IOCTL_FIONBIO;
1062   extern unsigned IOCTL_FIONCLEX;
1063   extern unsigned IOCTL_FIOSETOWN;
1064   extern unsigned IOCTL_SIOCADDMULTI;
1065   extern unsigned IOCTL_SIOCATMARK;
1066   extern unsigned IOCTL_SIOCDELMULTI;
1067   extern unsigned IOCTL_SIOCGIFADDR;
1068   extern unsigned IOCTL_SIOCGIFBRDADDR;
1069   extern unsigned IOCTL_SIOCGIFCONF;
1070   extern unsigned IOCTL_SIOCGIFDSTADDR;
1071   extern unsigned IOCTL_SIOCGIFFLAGS;
1072   extern unsigned IOCTL_SIOCGIFMETRIC;
1073   extern unsigned IOCTL_SIOCGIFMTU;
1074   extern unsigned IOCTL_SIOCGIFNETMASK;
1075   extern unsigned IOCTL_SIOCGPGRP;
1076   extern unsigned IOCTL_SIOCSIFADDR;
1077   extern unsigned IOCTL_SIOCSIFBRDADDR;
1078   extern unsigned IOCTL_SIOCSIFDSTADDR;
1079   extern unsigned IOCTL_SIOCSIFFLAGS;
1080   extern unsigned IOCTL_SIOCSIFMETRIC;
1081   extern unsigned IOCTL_SIOCSIFMTU;
1082   extern unsigned IOCTL_SIOCSIFNETMASK;
1083   extern unsigned IOCTL_SIOCSPGRP;
1084   extern unsigned IOCTL_TIOCCONS;
1085   extern unsigned IOCTL_TIOCEXCL;
1086   extern unsigned IOCTL_TIOCGETD;
1087   extern unsigned IOCTL_TIOCGPGRP;
1088   extern unsigned IOCTL_TIOCGWINSZ;
1089   extern unsigned IOCTL_TIOCMBIC;
1090   extern unsigned IOCTL_TIOCMBIS;
1091   extern unsigned IOCTL_TIOCMGET;
1092   extern unsigned IOCTL_TIOCMSET;
1093   extern unsigned IOCTL_TIOCNOTTY;
1094   extern unsigned IOCTL_TIOCNXCL;
1095   extern unsigned IOCTL_TIOCOUTQ;
1096   extern unsigned IOCTL_TIOCPKT;
1097   extern unsigned IOCTL_TIOCSCTTY;
1098   extern unsigned IOCTL_TIOCSETD;
1099   extern unsigned IOCTL_TIOCSPGRP;
1100   extern unsigned IOCTL_TIOCSTI;
1101   extern unsigned IOCTL_TIOCSWINSZ;
1102 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1103   extern unsigned IOCTL_SIOCGETSGCNT;
1104   extern unsigned IOCTL_SIOCGETVIFCNT;
1105 #endif
1106 #if SANITIZER_LINUX
1107   extern unsigned IOCTL_EVIOCGABS;
1108   extern unsigned IOCTL_EVIOCGBIT;
1109   extern unsigned IOCTL_EVIOCGEFFECTS;
1110   extern unsigned IOCTL_EVIOCGID;
1111   extern unsigned IOCTL_EVIOCGKEY;
1112   extern unsigned IOCTL_EVIOCGKEYCODE;
1113   extern unsigned IOCTL_EVIOCGLED;
1114   extern unsigned IOCTL_EVIOCGNAME;
1115   extern unsigned IOCTL_EVIOCGPHYS;
1116   extern unsigned IOCTL_EVIOCGRAB;
1117   extern unsigned IOCTL_EVIOCGREP;
1118   extern unsigned IOCTL_EVIOCGSND;
1119   extern unsigned IOCTL_EVIOCGSW;
1120   extern unsigned IOCTL_EVIOCGUNIQ;
1121   extern unsigned IOCTL_EVIOCGVERSION;
1122   extern unsigned IOCTL_EVIOCRMFF;
1123   extern unsigned IOCTL_EVIOCSABS;
1124   extern unsigned IOCTL_EVIOCSFF;
1125   extern unsigned IOCTL_EVIOCSKEYCODE;
1126   extern unsigned IOCTL_EVIOCSREP;
1127   extern unsigned IOCTL_BLKFLSBUF;
1128   extern unsigned IOCTL_BLKGETSIZE;
1129   extern unsigned IOCTL_BLKRAGET;
1130   extern unsigned IOCTL_BLKRASET;
1131   extern unsigned IOCTL_BLKROGET;
1132   extern unsigned IOCTL_BLKROSET;
1133   extern unsigned IOCTL_BLKRRPART;
1134   extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1135   extern unsigned IOCTL_CDROMEJECT;
1136   extern unsigned IOCTL_CDROMEJECT_SW;
1137   extern unsigned IOCTL_CDROMMULTISESSION;
1138   extern unsigned IOCTL_CDROMPAUSE;
1139   extern unsigned IOCTL_CDROMPLAYMSF;
1140   extern unsigned IOCTL_CDROMPLAYTRKIND;
1141   extern unsigned IOCTL_CDROMREADAUDIO;
1142   extern unsigned IOCTL_CDROMREADCOOKED;
1143   extern unsigned IOCTL_CDROMREADMODE1;
1144   extern unsigned IOCTL_CDROMREADMODE2;
1145   extern unsigned IOCTL_CDROMREADRAW;
1146   extern unsigned IOCTL_CDROMREADTOCENTRY;
1147   extern unsigned IOCTL_CDROMREADTOCHDR;
1148   extern unsigned IOCTL_CDROMRESET;
1149   extern unsigned IOCTL_CDROMRESUME;
1150   extern unsigned IOCTL_CDROMSEEK;
1151   extern unsigned IOCTL_CDROMSTART;
1152   extern unsigned IOCTL_CDROMSTOP;
1153   extern unsigned IOCTL_CDROMSUBCHNL;
1154   extern unsigned IOCTL_CDROMVOLCTRL;
1155   extern unsigned IOCTL_CDROMVOLREAD;
1156   extern unsigned IOCTL_CDROM_GET_UPC;
1157   extern unsigned IOCTL_FDCLRPRM;
1158   extern unsigned IOCTL_FDDEFPRM;
1159   extern unsigned IOCTL_FDFLUSH;
1160   extern unsigned IOCTL_FDFMTBEG;
1161   extern unsigned IOCTL_FDFMTEND;
1162   extern unsigned IOCTL_FDFMTTRK;
1163   extern unsigned IOCTL_FDGETDRVPRM;
1164   extern unsigned IOCTL_FDGETDRVSTAT;
1165   extern unsigned IOCTL_FDGETDRVTYP;
1166   extern unsigned IOCTL_FDGETFDCSTAT;
1167   extern unsigned IOCTL_FDGETMAXERRS;
1168   extern unsigned IOCTL_FDGETPRM;
1169   extern unsigned IOCTL_FDMSGOFF;
1170   extern unsigned IOCTL_FDMSGON;
1171   extern unsigned IOCTL_FDPOLLDRVSTAT;
1172   extern unsigned IOCTL_FDRAWCMD;
1173   extern unsigned IOCTL_FDRESET;
1174   extern unsigned IOCTL_FDSETDRVPRM;
1175   extern unsigned IOCTL_FDSETEMSGTRESH;
1176   extern unsigned IOCTL_FDSETMAXERRS;
1177   extern unsigned IOCTL_FDSETPRM;
1178   extern unsigned IOCTL_FDTWADDLE;
1179   extern unsigned IOCTL_FDWERRORCLR;
1180   extern unsigned IOCTL_FDWERRORGET;
1181   extern unsigned IOCTL_HDIO_DRIVE_CMD;
1182   extern unsigned IOCTL_HDIO_GETGEO;
1183   extern unsigned IOCTL_HDIO_GET_32BIT;
1184   extern unsigned IOCTL_HDIO_GET_DMA;
1185   extern unsigned IOCTL_HDIO_GET_IDENTITY;
1186   extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1187   extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1188   extern unsigned IOCTL_HDIO_GET_NOWERR;
1189   extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1190   extern unsigned IOCTL_HDIO_SET_32BIT;
1191   extern unsigned IOCTL_HDIO_SET_DMA;
1192   extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1193   extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1194   extern unsigned IOCTL_HDIO_SET_NOWERR;
1195   extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1196   extern unsigned IOCTL_MTIOCPOS;
1197   extern unsigned IOCTL_PPPIOCGASYNCMAP;
1198   extern unsigned IOCTL_PPPIOCGDEBUG;
1199   extern unsigned IOCTL_PPPIOCGFLAGS;
1200   extern unsigned IOCTL_PPPIOCGUNIT;
1201   extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1202   extern unsigned IOCTL_PPPIOCSASYNCMAP;
1203   extern unsigned IOCTL_PPPIOCSDEBUG;
1204   extern unsigned IOCTL_PPPIOCSFLAGS;
1205   extern unsigned IOCTL_PPPIOCSMAXCID;
1206   extern unsigned IOCTL_PPPIOCSMRU;
1207   extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1208   extern unsigned IOCTL_SIOCDARP;
1209   extern unsigned IOCTL_SIOCDRARP;
1210   extern unsigned IOCTL_SIOCGARP;
1211   extern unsigned IOCTL_SIOCGIFENCAP;
1212   extern unsigned IOCTL_SIOCGIFHWADDR;
1213   extern unsigned IOCTL_SIOCGIFMAP;
1214   extern unsigned IOCTL_SIOCGIFMEM;
1215   extern unsigned IOCTL_SIOCGIFNAME;
1216   extern unsigned IOCTL_SIOCGIFSLAVE;
1217   extern unsigned IOCTL_SIOCGRARP;
1218   extern unsigned IOCTL_SIOCGSTAMP;
1219   extern unsigned IOCTL_SIOCSARP;
1220   extern unsigned IOCTL_SIOCSIFENCAP;
1221   extern unsigned IOCTL_SIOCSIFHWADDR;
1222   extern unsigned IOCTL_SIOCSIFLINK;
1223   extern unsigned IOCTL_SIOCSIFMAP;
1224   extern unsigned IOCTL_SIOCSIFMEM;
1225   extern unsigned IOCTL_SIOCSIFSLAVE;
1226   extern unsigned IOCTL_SIOCSRARP;
1227   extern unsigned IOCTL_SNDCTL_COPR_HALT;
1228   extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1229   extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1230   extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1231   extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1232   extern unsigned IOCTL_SNDCTL_COPR_RESET;
1233   extern unsigned IOCTL_SNDCTL_COPR_RUN;
1234   extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1235   extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1236   extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1237   extern unsigned IOCTL_TCFLSH;
1238   extern unsigned IOCTL_TCGETA;
1239   extern unsigned IOCTL_TCGETS;
1240   extern unsigned IOCTL_TCSBRK;
1241   extern unsigned IOCTL_TCSBRKP;
1242   extern unsigned IOCTL_TCSETA;
1243   extern unsigned IOCTL_TCSETAF;
1244   extern unsigned IOCTL_TCSETAW;
1245   extern unsigned IOCTL_TCSETS;
1246   extern unsigned IOCTL_TCSETSF;
1247   extern unsigned IOCTL_TCSETSW;
1248   extern unsigned IOCTL_TCXONC;
1249   extern unsigned IOCTL_TIOCGLCKTRMIOS;
1250   extern unsigned IOCTL_TIOCGSOFTCAR;
1251   extern unsigned IOCTL_TIOCINQ;
1252   extern unsigned IOCTL_TIOCLINUX;
1253   extern unsigned IOCTL_TIOCSERCONFIG;
1254   extern unsigned IOCTL_TIOCSERGETLSR;
1255   extern unsigned IOCTL_TIOCSERGWILD;
1256   extern unsigned IOCTL_TIOCSERSWILD;
1257   extern unsigned IOCTL_TIOCSLCKTRMIOS;
1258   extern unsigned IOCTL_TIOCSSOFTCAR;
1259   extern unsigned IOCTL_VT_DISALLOCATE;
1260   extern unsigned IOCTL_VT_GETSTATE;
1261   extern unsigned IOCTL_VT_RESIZE;
1262   extern unsigned IOCTL_VT_RESIZEX;
1263   extern unsigned IOCTL_VT_SENDSIG;
1264 #endif  // SANITIZER_LINUX
1265 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1266   extern unsigned IOCTL_MTIOCGET;
1267   extern unsigned IOCTL_MTIOCTOP;
1268   extern unsigned IOCTL_SIOCADDRT;
1269   extern unsigned IOCTL_SIOCDELRT;
1270   extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1271   extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1272   extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1273   extern unsigned IOCTL_SNDCTL_DSP_POST;
1274   extern unsigned IOCTL_SNDCTL_DSP_RESET;
1275   extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1276   extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1277   extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1278   extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1279   extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1280   extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1281   extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1282   extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1283   extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1284   extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1285   extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1286   extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1287   extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1288   extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1289   extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1290   extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1291   extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1292   extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1293   extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1294   extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1295   extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1296   extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1297   extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1298   extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1299   extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1300   extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1301   extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1302   extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1303   extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1304   extern unsigned IOCTL_SNDCTL_TMR_START;
1305   extern unsigned IOCTL_SNDCTL_TMR_STOP;
1306   extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1307   extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1308   extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1309   extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1310   extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1311   extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1312   extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1313   extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1314   extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1315   extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1316   extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1317   extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1318   extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1319   extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1320   extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1321   extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1322   extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1323   extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1324   extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1325   extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1326   extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1327   extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1328   extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1329   extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1330   extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1331   extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1332   extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1333   extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1334   extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1335   extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1336   extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1337   extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1338   extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1339   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1340   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1341   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1342   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1343   extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1344   extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1345   extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1346   extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1347   extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1348   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1349   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1350   extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1351   extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1352   extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1353   extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1354   extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1355   extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1356   extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1357   extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1358   extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1359   extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1360   extern unsigned IOCTL_VT_ACTIVATE;
1361   extern unsigned IOCTL_VT_GETMODE;
1362   extern unsigned IOCTL_VT_OPENQRY;
1363   extern unsigned IOCTL_VT_RELDISP;
1364   extern unsigned IOCTL_VT_SETMODE;
1365   extern unsigned IOCTL_VT_WAITACTIVE;
1366 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
1367
1368 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1369   extern unsigned IOCTL_CYGETDEFTHRESH;
1370   extern unsigned IOCTL_CYGETDEFTIMEOUT;
1371   extern unsigned IOCTL_CYGETMON;
1372   extern unsigned IOCTL_CYGETTHRESH;
1373   extern unsigned IOCTL_CYGETTIMEOUT;
1374   extern unsigned IOCTL_CYSETDEFTHRESH;
1375   extern unsigned IOCTL_CYSETDEFTIMEOUT;
1376   extern unsigned IOCTL_CYSETTHRESH;
1377   extern unsigned IOCTL_CYSETTIMEOUT;
1378   extern unsigned IOCTL_EQL_EMANCIPATE;
1379   extern unsigned IOCTL_EQL_ENSLAVE;
1380   extern unsigned IOCTL_EQL_GETMASTRCFG;
1381   extern unsigned IOCTL_EQL_GETSLAVECFG;
1382   extern unsigned IOCTL_EQL_SETMASTRCFG;
1383   extern unsigned IOCTL_EQL_SETSLAVECFG;
1384   extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1385   extern unsigned IOCTL_EVIOCGPROP;
1386   extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1387   extern unsigned IOCTL_FS_IOC_GETFLAGS;
1388   extern unsigned IOCTL_FS_IOC_GETVERSION;
1389   extern unsigned IOCTL_FS_IOC_SETFLAGS;
1390   extern unsigned IOCTL_FS_IOC_SETVERSION;
1391   extern unsigned IOCTL_GIO_CMAP;
1392   extern unsigned IOCTL_GIO_FONT;
1393   extern unsigned IOCTL_GIO_UNIMAP;
1394   extern unsigned IOCTL_GIO_UNISCRNMAP;
1395   extern unsigned IOCTL_KDADDIO;
1396   extern unsigned IOCTL_KDDELIO;
1397   extern unsigned IOCTL_KDGETKEYCODE;
1398   extern unsigned IOCTL_KDGKBDIACR;
1399   extern unsigned IOCTL_KDGKBENT;
1400   extern unsigned IOCTL_KDGKBLED;
1401   extern unsigned IOCTL_KDGKBMETA;
1402   extern unsigned IOCTL_KDGKBSENT;
1403   extern unsigned IOCTL_KDMAPDISP;
1404   extern unsigned IOCTL_KDSETKEYCODE;
1405   extern unsigned IOCTL_KDSIGACCEPT;
1406   extern unsigned IOCTL_KDSKBDIACR;
1407   extern unsigned IOCTL_KDSKBENT;
1408   extern unsigned IOCTL_KDSKBLED;
1409   extern unsigned IOCTL_KDSKBMETA;
1410   extern unsigned IOCTL_KDSKBSENT;
1411   extern unsigned IOCTL_KDUNMAPDISP;
1412   extern unsigned IOCTL_LPABORT;
1413   extern unsigned IOCTL_LPABORTOPEN;
1414   extern unsigned IOCTL_LPCAREFUL;
1415   extern unsigned IOCTL_LPCHAR;
1416   extern unsigned IOCTL_LPGETIRQ;
1417   extern unsigned IOCTL_LPGETSTATUS;
1418   extern unsigned IOCTL_LPRESET;
1419   extern unsigned IOCTL_LPSETIRQ;
1420   extern unsigned IOCTL_LPTIME;
1421   extern unsigned IOCTL_LPWAIT;
1422   extern unsigned IOCTL_MTIOCGETCONFIG;
1423   extern unsigned IOCTL_MTIOCSETCONFIG;
1424   extern unsigned IOCTL_PIO_CMAP;
1425   extern unsigned IOCTL_PIO_FONT;
1426   extern unsigned IOCTL_PIO_UNIMAP;
1427   extern unsigned IOCTL_PIO_UNIMAPCLR;
1428   extern unsigned IOCTL_PIO_UNISCRNMAP;
1429   extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1430   extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1431   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1432   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1433   extern unsigned IOCTL_SIOCAIPXITFCRT;
1434   extern unsigned IOCTL_SIOCAIPXPRISLT;
1435   extern unsigned IOCTL_SIOCAX25ADDUID;
1436   extern unsigned IOCTL_SIOCAX25DELUID;
1437   extern unsigned IOCTL_SIOCAX25GETPARMS;
1438   extern unsigned IOCTL_SIOCAX25GETUID;
1439   extern unsigned IOCTL_SIOCAX25NOUID;
1440   extern unsigned IOCTL_SIOCAX25SETPARMS;
1441   extern unsigned IOCTL_SIOCDEVPLIP;
1442   extern unsigned IOCTL_SIOCIPXCFGDATA;
1443   extern unsigned IOCTL_SIOCNRDECOBS;
1444   extern unsigned IOCTL_SIOCNRGETPARMS;
1445   extern unsigned IOCTL_SIOCNRRTCTL;
1446   extern unsigned IOCTL_SIOCNRSETPARMS;
1447   extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1448   extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1449   extern unsigned IOCTL_TIOCGSERIAL;
1450   extern unsigned IOCTL_TIOCSERGETMULTI;
1451   extern unsigned IOCTL_TIOCSERSETMULTI;
1452   extern unsigned IOCTL_TIOCSSERIAL;
1453 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1454
1455 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1456   extern unsigned IOCTL_GIO_SCRNMAP;
1457   extern unsigned IOCTL_KDDISABIO;
1458   extern unsigned IOCTL_KDENABIO;
1459   extern unsigned IOCTL_KDGETLED;
1460   extern unsigned IOCTL_KDGETMODE;
1461   extern unsigned IOCTL_KDGKBMODE;
1462   extern unsigned IOCTL_KDGKBTYPE;
1463   extern unsigned IOCTL_KDMKTONE;
1464   extern unsigned IOCTL_KDSETLED;
1465   extern unsigned IOCTL_KDSETMODE;
1466   extern unsigned IOCTL_KDSKBMODE;
1467   extern unsigned IOCTL_KIOCSOUND;
1468   extern unsigned IOCTL_PIO_SCRNMAP;
1469 #endif
1470
1471   extern const int errno_EINVAL;
1472   extern const int errno_EOWNERDEAD;
1473
1474   extern const int si_SEGV_MAPERR;
1475   extern const int si_SEGV_ACCERR;
1476 }  // namespace __sanitizer
1477
1478 #define CHECK_TYPE_SIZE(TYPE) \
1479   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1480
1481 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1482   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
1483                  sizeof(((CLASS *) NULL)->MEMBER));                \
1484   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
1485                  offsetof(CLASS, MEMBER))
1486
1487 // For sigaction, which is a function and struct at the same time,
1488 // and thus requires explicit "struct" in sizeof() expression.
1489 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1490   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
1491                  sizeof(((struct CLASS *) NULL)->MEMBER));                \
1492   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==          \
1493                  offsetof(struct CLASS, MEMBER))
1494
1495 #endif