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 #if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
  19
  20 #include "sanitizer_internal_defs.h"
  21 #include "sanitizer_platform.h"
  22
  23 #if SANITIZER_FREEBSD
  24 // FreeBSD's dlopen() returns a pointer to an Obj_Entry structure that
  25 // incorporates the map structure.
  26 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) \
  27     ((link_map*)((handle) == nullptr ? nullptr : ((char*)(handle) + 560)))
  28 // Get sys/_types.h, because that tells us whether 64-bit inodes are
  29 // used in struct dirent below.
  30 #include <sys/_types.h>
  31 #else
  32 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
  33 #endif  // !SANITIZER_FREEBSD
  34
  35 #ifndef __GLIBC_PREREQ
  36 #define __GLIBC_PREREQ(x, y) 0
  37 #endif
  38
  39 namespace __sanitizer {
  40   extern unsigned struct_utsname_sz;
  41   extern unsigned struct_stat_sz;
  42 #if !SANITIZER_FREEBSD && !SANITIZER_IOS
  43   extern unsigned struct_stat64_sz;
  44 #endif
  45   extern unsigned struct_rusage_sz;
  46   extern unsigned siginfo_t_sz;
  47   extern unsigned struct_itimerval_sz;
  48   extern unsigned pthread_t_sz;
  49   extern unsigned pthread_mutex_t_sz;
  50   extern unsigned pthread_cond_t_sz;
  51   extern unsigned pid_t_sz;
  52   extern unsigned timeval_sz;
  53   extern unsigned uid_t_sz;
  54   extern unsigned gid_t_sz;
  55   extern unsigned mbstate_t_sz;
  56   extern unsigned struct_timezone_sz;
  57   extern unsigned struct_tms_sz;
  58   extern unsigned struct_itimerspec_sz;
  59   extern unsigned struct_sigevent_sz;
  60   extern unsigned struct_sched_param_sz;
  61   extern unsigned struct_statfs64_sz;
  62
  63 #if !SANITIZER_ANDROID
  64   extern unsigned struct_statfs_sz;
  65   extern unsigned struct_sockaddr_sz;
  66   extern unsigned ucontext_t_sz;
  67 #endif // !SANITIZER_ANDROID
  68
  69 #if SANITIZER_LINUX
  70
  71 #if defined(__x86_64__)
  72   const unsigned struct_kernel_stat_sz = 144;
  73   const unsigned struct_kernel_stat64_sz = 0;
  74 #elif defined(__i386__)
  75   const unsigned struct_kernel_stat_sz = 64;
  76   const unsigned struct_kernel_stat64_sz = 96;
  77 #elif defined(__arm__)
  78   const unsigned struct_kernel_stat_sz = 64;
  79   const unsigned struct_kernel_stat64_sz = 104;
  80 #elif defined(__aarch64__)
  81   const unsigned struct_kernel_stat_sz = 128;
  82   const unsigned struct_kernel_stat64_sz = 104;
  83 #elif defined(__powerpc__) && !defined(__powerpc64__)
  84   const unsigned struct_kernel_stat_sz = 72;
  85   const unsigned struct_kernel_stat64_sz = 104;
  86 #elif defined(__powerpc64__)
  87   const unsigned struct_kernel_stat_sz = 144;
  88   const unsigned struct_kernel_stat64_sz = 104;
  89 #elif defined(__riscv__)
  90   /* RISCVTODO: check that these values are correct */
  91   const unsigned struct_kernel_stat_sz = 128;
  92   const unsigned struct_kernel_stat64_sz = 128;
  93 #elif defined(__mips__)
  94   const unsigned struct_kernel_stat_sz =
  95                  SANITIZER_ANDROID ? FIRST_32_SECOND_64(104, 128) :
  96                                      FIRST_32_SECOND_64(160, 216);
  97   const unsigned struct_kernel_stat64_sz = 104;
  98 #elif defined(__s390__) && !defined(__s390x__)
  99   const unsigned struct_kernel_stat_sz = 64;
 100   const unsigned struct_kernel_stat64_sz = 104;
 101 #elif defined(__s390x__)
 102   const unsigned struct_kernel_stat_sz = 144;
 103   const unsigned struct_kernel_stat64_sz = 0;
 104 #elif defined(__sparc__) && defined(__arch64__)
 105   const unsigned struct___old_kernel_stat_sz = 0;
 106   const unsigned struct_kernel_stat_sz = 104;
 107   const unsigned struct_kernel_stat64_sz = 144;
 108 #elif defined(__sparc__) && !defined(__arch64__)
 109   const unsigned struct___old_kernel_stat_sz = 0;
 110   const unsigned struct_kernel_stat_sz = 64;
 111   const unsigned struct_kernel_stat64_sz = 104;
 112 #endif
 113   struct __sanitizer_perf_event_attr {
 114     unsigned type;
 115     unsigned size;
 116     // More fields that vary with the kernel version.
 117   };
 118
 119   extern unsigned struct_epoll_event_sz;
 120   extern unsigned struct_sysinfo_sz;
 121   extern unsigned __user_cap_header_struct_sz;
 122   extern unsigned __user_cap_data_struct_sz;
 123   extern unsigned struct_new_utsname_sz;
 124   extern unsigned struct_old_utsname_sz;
 125   extern unsigned struct_oldold_utsname_sz;
 126
 127   const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
 128 #endif  // SANITIZER_LINUX
 129
 130 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 131
 132 #if defined(__powerpc64__) || defined(__riscv__) || defined(__s390__)
 133   const unsigned struct___old_kernel_stat_sz = 0;
 134 #elif !defined(__sparc__)
 135   const unsigned struct___old_kernel_stat_sz = 32;
 136 #endif
 137
 138   extern unsigned struct_rlimit_sz;
 139   extern unsigned struct_utimbuf_sz;
 140   extern unsigned struct_timespec_sz;
 141
 142   struct __sanitizer_iocb {
 143     u64   aio_data;
 144     u32   aio_key_or_aio_reserved1; // Simply crazy.
 145     u32   aio_reserved1_or_aio_key; // Luckily, we don't need these.
 146     u16   aio_lio_opcode;
 147     s16   aio_reqprio;
 148     u32   aio_fildes;
 149     u64   aio_buf;
 150     u64   aio_nbytes;
 151     s64   aio_offset;
 152     u64   aio_reserved2;
 153     u64   aio_reserved3;
 154   };
 155
 156   struct __sanitizer_io_event {
 157     u64 data;
 158     u64 obj;
 159     u64 res;
 160     u64 res2;
 161   };
 162
 163   const unsigned iocb_cmd_pread = 0;
 164   const unsigned iocb_cmd_pwrite = 1;
 165   const unsigned iocb_cmd_preadv = 7;
 166   const unsigned iocb_cmd_pwritev = 8;
 167
 168   struct __sanitizer___sysctl_args {
 169     int *name;
 170     int nlen;
 171     void *oldval;
 172     uptr *oldlenp;
 173     void *newval;
 174     uptr newlen;
 175     unsigned long ___unused[4];
 176   };
 177
 178   const unsigned old_sigset_t_sz = sizeof(unsigned long);
 179
 180   struct __sanitizer_sem_t {
 181 #if SANITIZER_ANDROID && defined(_LP64)
 182     int data[4];
 183 #elif SANITIZER_ANDROID && !defined(_LP64)
 184     int data;
 185 #elif SANITIZER_LINUX
 186     uptr data[4];
 187 #elif SANITIZER_FREEBSD
 188     u32 data[4];
 189 #endif
 190   };
 191 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 192
 193 #if SANITIZER_ANDROID
 194   struct __sanitizer_mallinfo {
 195     uptr v[10];
 196   };
 197 #endif
 198
 199 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 200   struct __sanitizer_mallinfo {
 201     int v[10];
 202   };
 203
 204   extern unsigned struct_ustat_sz;
 205   extern unsigned struct_rlimit64_sz;
 206   extern unsigned struct_statvfs64_sz;
 207
 208   struct __sanitizer_ipc_perm {
 209     int __key;
 210     int uid;
 211     int gid;
 212     int cuid;
 213     int cgid;
 214 #ifdef __powerpc__
 215     unsigned mode;
 216     unsigned __seq;
 217     u64 __unused1;
 218     u64 __unused2;
 219 #elif defined(__sparc__)
 220 #if defined(__arch64__)
 221     unsigned mode;
 222     unsigned short __pad1;
 223 #else
 224     unsigned short __pad1;
 225     unsigned short mode;
 226     unsigned short __pad2;
 227 #endif
 228     unsigned short __seq;
 229     unsigned long long __unused1;
 230     unsigned long long __unused2;
 231 #elif defined(__mips__) || defined(__aarch64__) || defined(__s390x__)
 232     unsigned int mode;
 233     unsigned short __seq;
 234     unsigned short __pad1;
 235     unsigned long __unused1;
 236     unsigned long __unused2;
 237 #else
 238     unsigned short mode;
 239     unsigned short __pad1;
 240     unsigned short __seq;
 241     unsigned short __pad2;
 242 #if defined(__x86_64__) && !defined(_LP64)
 243     u64 __unused1;
 244     u64 __unused2;
 245 #else
 246     unsigned long __unused1;
 247     unsigned long __unused2;
 248 #endif
 249 #endif
 250   };
 251
 252   struct __sanitizer_shmid_ds {
 253     __sanitizer_ipc_perm shm_perm;
 254   #if defined(__sparc__)
 255   #if !defined(__arch64__)
 256     u32 __pad1;
 257   #endif
 258     long shm_atime;
 259   #if !defined(__arch64__)
 260     u32 __pad2;
 261   #endif
 262     long shm_dtime;
 263   #if !defined(__arch64__)
 264     u32 __pad3;
 265   #endif
 266     long shm_ctime;
 267     uptr shm_segsz;
 268     int shm_cpid;
 269     int shm_lpid;
 270     unsigned long shm_nattch;
 271     unsigned long __glibc_reserved1;
 272     unsigned long __glibc_reserved2;
 273   #else
 274   #ifndef __powerpc__
 275     uptr shm_segsz;
 276   #elif !defined(__powerpc64__)
 277     uptr __unused0;
 278   #endif
 279   #if defined(__x86_64__) && !defined(_LP64)
 280     u64 shm_atime;
 281     u64 shm_dtime;
 282     u64 shm_ctime;
 283   #else
 284     uptr shm_atime;
 285   #if !defined(_LP64) && !defined(__mips__)
 286     uptr __unused1;
 287   #endif
 288     uptr shm_dtime;
 289   #if !defined(_LP64) && !defined(__mips__)
 290     uptr __unused2;
 291   #endif
 292     uptr shm_ctime;
 293   #if !defined(_LP64) && !defined(__mips__)
 294     uptr __unused3;
 295   #endif
 296   #endif
 297   #ifdef __powerpc__
 298     uptr shm_segsz;
 299   #endif
 300     int shm_cpid;
 301     int shm_lpid;
 302   #if defined(__x86_64__) && !defined(_LP64)
 303     u64 shm_nattch;
 304     u64 __unused4;
 305     u64 __unused5;
 306   #else
 307     uptr shm_nattch;
 308     uptr __unused4;
 309     uptr __unused5;
 310   #endif
 311 #endif
 312   };
 313 #elif SANITIZER_FREEBSD
 314   struct __sanitizer_ipc_perm {
 315     unsigned int cuid;
 316     unsigned int cgid;
 317     unsigned int uid;
 318     unsigned int gid;
 319     unsigned short mode;
 320     unsigned short seq;
 321     long key;
 322   };
 323
 324   struct __sanitizer_shmid_ds {
 325     __sanitizer_ipc_perm shm_perm;
 326     unsigned long shm_segsz;
 327     unsigned int shm_lpid;
 328     unsigned int shm_cpid;
 329     int shm_nattch;
 330     unsigned long shm_atime;
 331     unsigned long shm_dtime;
 332     unsigned long shm_ctime;
 333   };
 334 #endif
 335
 336 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 337   extern unsigned struct_msqid_ds_sz;
 338   extern unsigned struct_mq_attr_sz;
 339   extern unsigned struct_timex_sz;
 340   extern unsigned struct_statvfs_sz;
 341 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 342
 343   struct __sanitizer_iovec {
 344     void *iov_base;
 345     uptr iov_len;
 346   };
 347
 348 #if !SANITIZER_ANDROID
 349   struct __sanitizer_ifaddrs {
 350     struct __sanitizer_ifaddrs *ifa_next;
 351     char *ifa_name;
 352     unsigned int ifa_flags;
 353     void *ifa_addr;    // (struct sockaddr *)
 354     void *ifa_netmask; // (struct sockaddr *)
 355     // This is a union on Linux.
 356 # ifdef ifa_dstaddr
 357 # undef ifa_dstaddr
 358 # endif
 359     void *ifa_dstaddr; // (struct sockaddr *)
 360     void *ifa_data;
 361   };
 362 #endif  // !SANITIZER_ANDROID
 363
 364 #if SANITIZER_MAC
 365   typedef unsigned long __sanitizer_pthread_key_t;
 366 #else
 367   typedef unsigned __sanitizer_pthread_key_t;
 368 #endif
 369
 370 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 371
 372   struct __sanitizer_XDR {
 373     int x_op;
 374     void *x_ops;
 375     uptr x_public;
 376     uptr x_private;
 377     uptr x_base;
 378     unsigned x_handy;
 379   };
 380
 381   const int __sanitizer_XDR_ENCODE = 0;
 382   const int __sanitizer_XDR_DECODE = 1;
 383   const int __sanitizer_XDR_FREE = 2;
 384 #endif
 385
 386   struct __sanitizer_passwd {
 387     char *pw_name;
 388     char *pw_passwd;
 389     int pw_uid;
 390     int pw_gid;
 391 #if SANITIZER_MAC || SANITIZER_FREEBSD
 392     long pw_change;
 393     char *pw_class;
 394 #endif
 395 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
 396     char *pw_gecos;
 397 #endif
 398     char *pw_dir;
 399     char *pw_shell;
 400 #if SANITIZER_MAC || SANITIZER_FREEBSD
 401     long pw_expire;
 402 #endif
 403 #if SANITIZER_FREEBSD
 404     int pw_fields;
 405 #endif
 406   };
 407
 408   struct __sanitizer_group {
 409     char *gr_name;
 410     char *gr_passwd;
 411     int gr_gid;
 412     char **gr_mem;
 413   };
 414
 415 #if defined(__x86_64__) && !defined(_LP64)
 416   typedef long long __sanitizer_time_t;
 417 #else
 418   typedef long __sanitizer_time_t;
 419 #endif
 420
 421   typedef long __sanitizer_suseconds_t;
 422
 423   struct __sanitizer_timeval {
 424     __sanitizer_time_t tv_sec;
 425     __sanitizer_suseconds_t tv_usec;
 426   };
 427
 428   struct __sanitizer_itimerval {
 429     struct __sanitizer_timeval it_interval;
 430     struct __sanitizer_timeval it_value;
 431   };
 432
 433   struct __sanitizer_timeb {
 434     __sanitizer_time_t time;
 435     unsigned short millitm;
 436     short timezone;
 437     short dstflag;
 438   };
 439
 440   struct __sanitizer_ether_addr {
 441     u8 octet[6];
 442   };
 443
 444   struct __sanitizer_tm {
 445     int tm_sec;
 446     int tm_min;
 447     int tm_hour;
 448     int tm_mday;
 449     int tm_mon;
 450     int tm_year;
 451     int tm_wday;
 452     int tm_yday;
 453     int tm_isdst;
 454     long int tm_gmtoff;
 455     const char *tm_zone;
 456   };
 457
 458 #if SANITIZER_LINUX
 459   struct __sanitizer_mntent {
 460     char *mnt_fsname;
 461     char *mnt_dir;
 462     char *mnt_type;
 463     char *mnt_opts;
 464     int mnt_freq;
 465     int mnt_passno;
 466   };
 467
 468   struct __sanitizer_file_handle {
 469     unsigned int handle_bytes;
 470     int handle_type;
 471     unsigned char f_handle[1];  // variable sized
 472   };
 473 #endif
 474
 475 #if SANITIZER_MAC || SANITIZER_FREEBSD
 476   struct __sanitizer_msghdr {
 477     void *msg_name;
 478     unsigned msg_namelen;
 479     struct __sanitizer_iovec *msg_iov;
 480     unsigned msg_iovlen;
 481     void *msg_control;
 482     unsigned msg_controllen;
 483     int msg_flags;
 484   };
 485   struct __sanitizer_cmsghdr {
 486     unsigned cmsg_len;
 487     int cmsg_level;
 488     int cmsg_type;
 489   };
 490 #else
 491   struct __sanitizer_msghdr {
 492     void *msg_name;
 493     unsigned msg_namelen;
 494     struct __sanitizer_iovec *msg_iov;
 495     uptr msg_iovlen;
 496     void *msg_control;
 497     uptr msg_controllen;
 498     int msg_flags;
 499   };
 500   struct __sanitizer_cmsghdr {
 501     uptr cmsg_len;
 502     int cmsg_level;
 503     int cmsg_type;
 504   };
 505 #endif
 506
 507 #if SANITIZER_LINUX
 508   struct __sanitizer_mmsghdr {
 509     __sanitizer_msghdr msg_hdr;
 510     unsigned int msg_len;
 511   };
 512 #endif
 513
 514 #if SANITIZER_MAC
 515   struct __sanitizer_dirent {
 516     unsigned long long d_ino;
 517     unsigned long long d_seekoff;
 518     unsigned short d_reclen;
 519     // more fields that we don't care about
 520   };
 521 #elif SANITIZER_FREEBSD
 522   struct __sanitizer_dirent {
 523 #if defined(__INO64)
 524     unsigned long long d_fileno;
 525     unsigned long long d_off;
 526 #else
 527     unsigned int d_fileno;
 528 #endif
 529     unsigned short d_reclen;
 530     // more fields that we don't care about
 531   };
 532 #elif SANITIZER_ANDROID || defined(__x86_64__)
 533   struct __sanitizer_dirent {
 534     unsigned long long d_ino;
 535     unsigned long long d_off;
 536     unsigned short d_reclen;
 537     // more fields that we don't care about
 538   };
 539 #else
 540   struct __sanitizer_dirent {
 541     uptr d_ino;
 542     uptr d_off;
 543     unsigned short d_reclen;
 544     // more fields that we don't care about
 545   };
 546 #endif
 547
 548 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 549   struct __sanitizer_dirent64 {
 550     unsigned long long d_ino;
 551     unsigned long long d_off;
 552     unsigned short d_reclen;
 553     // more fields that we don't care about
 554   };
 555 #endif
 556
 557 // 'clock_t' is 32 bits wide on x64 FreeBSD
 558 #if SANITIZER_FREEBSD
 559   typedef int __sanitizer_clock_t;
 560 #elif defined(__x86_64__) && !defined(_LP64)
 561   typedef long long __sanitizer_clock_t;
 562 #else
 563   typedef long __sanitizer_clock_t;
 564 #endif
 565
 566 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 567   typedef int __sanitizer_clockid_t;
 568 #endif
 569
 570 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 571 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)\
 572                    || defined(__mips__)
 573   typedef unsigned __sanitizer___kernel_uid_t;
 574   typedef unsigned __sanitizer___kernel_gid_t;
 575 #else
 576   typedef unsigned short __sanitizer___kernel_uid_t;
 577   typedef unsigned short __sanitizer___kernel_gid_t;
 578 #endif
 579 #if defined(__x86_64__) && !defined(_LP64)
 580   typedef long long __sanitizer___kernel_off_t;
 581 #else
 582   typedef long __sanitizer___kernel_off_t;
 583 #endif
 584
 585 #if defined(__powerpc__) || defined(__mips__) || defined(__riscv__)
 586   typedef unsigned int __sanitizer___kernel_old_uid_t;
 587   typedef unsigned int __sanitizer___kernel_old_gid_t;
 588 #else
 589   typedef unsigned short __sanitizer___kernel_old_uid_t;
 590   typedef unsigned short __sanitizer___kernel_old_gid_t;
 591 #endif
 592
 593   typedef long long __sanitizer___kernel_loff_t;
 594   typedef struct {
 595     unsigned long fds_bits[1024 / (8 * sizeof(long))];
 596   } __sanitizer___kernel_fd_set;
 597 #endif
 598
 599   // This thing depends on the platform. We are only interested in the upper
 600   // limit. Verified with a compiler assert in .cc.
 601   const int pthread_attr_t_max_sz = 128;
 602   union __sanitizer_pthread_attr_t {
 603     char size[pthread_attr_t_max_sz]; // NOLINT
 604     void *align;
 605   };
 606
 607 #if SANITIZER_ANDROID
 608 # if SANITIZER_MIPS
 609   typedef unsigned long __sanitizer_sigset_t[16/sizeof(unsigned long)];
 610 # else
 611   typedef unsigned long __sanitizer_sigset_t;
 612 # endif
 613 #elif SANITIZER_MAC
 614   typedef unsigned __sanitizer_sigset_t;
 615 #elif SANITIZER_LINUX
 616   struct __sanitizer_sigset_t {
 617     // The size is determined by looking at sizeof of real sigset_t on linux.
 618     uptr val[128 / sizeof(uptr)];
 619   };
 620 #elif SANITIZER_FREEBSD
 621   struct __sanitizer_sigset_t {
 622      // uint32_t * 4
 623      unsigned int __bits[4];
 624   };
 625 #endif
 626
 627   struct __sanitizer_siginfo {
 628     // The size is determined by looking at sizeof of real siginfo_t on linux.
 629     u64 opaque[128 / sizeof(u64)];
 630   };
 631
 632   using __sanitizer_sighandler_ptr = void (*)(int sig);
 633   using __sanitizer_sigactionhandler_ptr =
 634       void (*)(int sig, __sanitizer_siginfo *siginfo, void *uctx);
 635
 636   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 637 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
 638   struct __sanitizer_sigaction {
 639     unsigned sa_flags;
 640     union {
 641       __sanitizer_sigactionhandler_ptr sigaction;
 642       __sanitizer_sighandler_ptr handler;
 643     };
 644     __sanitizer_sigset_t sa_mask;
 645     void (*sa_restorer)();
 646   };
 647 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
 648   struct __sanitizer_sigaction {
 649     unsigned sa_flags;
 650     union {
 651       __sanitizer_sigactionhandler_ptr sigaction;
 652       __sanitizer_sighandler_ptr handler;
 653     };
 654     __sanitizer_sigset_t sa_mask;
 655   };
 656 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
 657   struct __sanitizer_sigaction {
 658     union {
 659       __sanitizer_sigactionhandler_ptr sigaction;
 660       __sanitizer_sighandler_ptr handler;
 661     };
 662     __sanitizer_sigset_t sa_mask;
 663     uptr sa_flags;
 664     void (*sa_restorer)();
 665   };
 666 #else // !SANITIZER_ANDROID
 667   struct __sanitizer_sigaction {
 668 #if defined(__mips__) && !SANITIZER_FREEBSD
 669     unsigned int sa_flags;
 670 #endif
 671     union {
 672       __sanitizer_sigactionhandler_ptr sigaction;
 673       __sanitizer_sighandler_ptr handler;
 674     };
 675 #if SANITIZER_FREEBSD
 676     int sa_flags;
 677     __sanitizer_sigset_t sa_mask;
 678 #else
 679 #if defined(__s390x__)
 680     int sa_resv;
 681 #else
 682     __sanitizer_sigset_t sa_mask;
 683 #endif
 684 #ifndef __mips__
 685 #if defined(__sparc__)
 686 #if __GLIBC_PREREQ (2, 20)
 687     // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
 688 #if defined(__arch64__)
 689     // To maintain ABI compatibility on sparc64 when switching to an int,
 690     // __glibc_reserved0 was added.
 691     int __glibc_reserved0;
 692 #endif
 693     int sa_flags;
 694 #else
 695     unsigned long sa_flags;
 696 #endif
 697 #else
 698     int sa_flags;
 699 #endif
 700 #endif
 701 #endif
 702 #if SANITIZER_LINUX
 703     void (*sa_restorer)();
 704 #endif
 705 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
 706     int sa_resv[1];
 707 #endif
 708 #if defined(__s390x__)
 709     __sanitizer_sigset_t sa_mask;
 710 #endif
 711   };
 712 #endif // !SANITIZER_ANDROID
 713
 714 #if SANITIZER_FREEBSD
 715   typedef __sanitizer_sigset_t __sanitizer_kernel_sigset_t;
 716 #elif defined(__mips__)
 717   struct __sanitizer_kernel_sigset_t {
 718     uptr sig[2];
 719   };
 720 #else
 721   struct __sanitizer_kernel_sigset_t {
 722     u8 sig[8];
 723   };
 724 #endif
 725
 726   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 727 #if SANITIZER_MIPS
 728   struct __sanitizer_kernel_sigaction_t {
 729     unsigned int sa_flags;
 730     union {
 731       void (*handler)(int signo);
 732       void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
 733     };
 734     __sanitizer_kernel_sigset_t sa_mask;
 735     void (*sa_restorer)(void);
 736   };
 737 #else
 738   struct __sanitizer_kernel_sigaction_t {
 739     union {
 740       void (*handler)(int signo);
 741       void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
 742     };
 743     unsigned long sa_flags;
 744     void (*sa_restorer)(void);
 745     __sanitizer_kernel_sigset_t sa_mask;
 746   };
 747 #endif
 748
 749   extern const uptr sig_ign;
 750   extern const uptr sig_dfl;
 751   extern const uptr sig_err;
 752   extern const uptr sa_siginfo;
 753
 754 #if SANITIZER_LINUX
 755   extern int e_tabsz;
 756 #endif
 757
 758   extern int af_inet;
 759   extern int af_inet6;
 760   uptr __sanitizer_in_addr_sz(int af);
 761
 762 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 763   struct __sanitizer_dl_phdr_info {
 764     uptr dlpi_addr;
 765     const char *dlpi_name;
 766     const void *dlpi_phdr;
 767     short dlpi_phnum;
 768   };
 769
 770   extern unsigned struct_ElfW_Phdr_sz;
 771 #endif
 772
 773   struct __sanitizer_addrinfo {
 774     int ai_flags;
 775     int ai_family;
 776     int ai_socktype;
 777     int ai_protocol;
 778 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 779     unsigned ai_addrlen;
 780     char *ai_canonname;
 781     void *ai_addr;
 782 #else // LINUX
 783     unsigned ai_addrlen;
 784     void *ai_addr;
 785     char *ai_canonname;
 786 #endif
 787     struct __sanitizer_addrinfo *ai_next;
 788   };
 789
 790   struct __sanitizer_hostent {
 791     char *h_name;
 792     char **h_aliases;
 793     int h_addrtype;
 794     int h_length;
 795     char **h_addr_list;
 796   };
 797
 798   struct __sanitizer_pollfd {
 799     int fd;
 800     short events;
 801     short revents;
 802   };
 803
 804 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 805   typedef unsigned __sanitizer_nfds_t;
 806 #else
 807   typedef unsigned long __sanitizer_nfds_t;
 808 #endif
 809
 810 #if !SANITIZER_ANDROID
 811 # if SANITIZER_LINUX
 812   struct __sanitizer_glob_t {
 813     uptr gl_pathc;
 814     char **gl_pathv;
 815     uptr gl_offs;
 816     int gl_flags;
 817
 818     void (*gl_closedir)(void *dirp);
 819     void *(*gl_readdir)(void *dirp);
 820     void *(*gl_opendir)(const char *);
 821     int (*gl_lstat)(const char *, void *);
 822     int (*gl_stat)(const char *, void *);
 823   };
 824 # elif SANITIZER_FREEBSD
 825   struct __sanitizer_glob_t {
 826     uptr gl_pathc;
 827     uptr gl_matchc;
 828     uptr gl_offs;
 829     int gl_flags;
 830     char **gl_pathv;
 831     int (*gl_errfunc)(const char*, int);
 832     void (*gl_closedir)(void *dirp);
 833     struct dirent *(*gl_readdir)(void *dirp);
 834     void *(*gl_opendir)(const char*);
 835     int (*gl_lstat)(const char*, void* /* struct stat* */);
 836     int (*gl_stat)(const char*, void* /* struct stat* */);
 837   };
 838 # endif  // SANITIZER_FREEBSD
 839
 840 # if SANITIZER_LINUX || SANITIZER_FREEBSD
 841   extern int glob_nomatch;
 842   extern int glob_altdirfunc;
 843 # endif
 844 #endif  // !SANITIZER_ANDROID
 845
 846   extern unsigned path_max;
 847
 848   struct __sanitizer_wordexp_t {
 849     uptr we_wordc;
 850     char **we_wordv;
 851     uptr we_offs;
 852 #if SANITIZER_FREEBSD
 853     char *we_strings;
 854     uptr we_nbytes;
 855 #endif
 856   };
 857
 858 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 859   struct __sanitizer_FILE {
 860     int _flags;
 861     char *_IO_read_ptr;
 862     char *_IO_read_end;
 863     char *_IO_read_base;
 864     char *_IO_write_base;
 865     char *_IO_write_ptr;
 866     char *_IO_write_end;
 867     char *_IO_buf_base;
 868     char *_IO_buf_end;
 869     char *_IO_save_base;
 870     char *_IO_backup_base;
 871     char *_IO_save_end;
 872     void *_markers;
 873     __sanitizer_FILE *_chain;
 874     int _fileno;
 875   };
 876 # define SANITIZER_HAS_STRUCT_FILE 1
 877 #else
 878   typedef void __sanitizer_FILE;
 879 # define SANITIZER_HAS_STRUCT_FILE 0
 880 #endif
 881
 882 #if SANITIZER_LINUX && !SANITIZER_ANDROID && \
 883   (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
 884     defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
 885     defined(__s390__))
 886   extern unsigned struct_user_regs_struct_sz;
 887   extern unsigned struct_user_fpregs_struct_sz;
 888   extern unsigned struct_user_fpxregs_struct_sz;
 889   extern unsigned struct_user_vfpregs_struct_sz;
 890
 891   extern int ptrace_peektext;
 892   extern int ptrace_peekdata;
 893   extern int ptrace_peekuser;
 894   extern int ptrace_getregs;
 895   extern int ptrace_setregs;
 896   extern int ptrace_getfpregs;
 897   extern int ptrace_setfpregs;
 898   extern int ptrace_getfpxregs;
 899   extern int ptrace_setfpxregs;
 900   extern int ptrace_getvfpregs;
 901   extern int ptrace_setvfpregs;
 902   extern int ptrace_getsiginfo;
 903   extern int ptrace_setsiginfo;
 904   extern int ptrace_getregset;
 905   extern int ptrace_setregset;
 906   extern int ptrace_geteventmsg;
 907 #endif
 908
 909 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 910   extern unsigned struct_shminfo_sz;
 911   extern unsigned struct_shm_info_sz;
 912   extern int shmctl_ipc_stat;
 913   extern int shmctl_ipc_info;
 914   extern int shmctl_shm_info;
 915   extern int shmctl_shm_stat;
 916 #endif
 917
 918 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
 919   extern unsigned struct_utmp_sz;
 920 #endif
 921 #if !SANITIZER_ANDROID
 922   extern unsigned struct_utmpx_sz;
 923 #endif
 924
 925   extern int map_fixed;
 926
 927   // ioctl arguments
 928   struct __sanitizer_ifconf {
 929     int ifc_len;
 930     union {
 931       void *ifcu_req;
 932     } ifc_ifcu;
 933 #if SANITIZER_MAC
 934   } __attribute__((packed));
 935 #else
 936   };
 937 #endif
 938
 939 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 940 struct __sanitizer__obstack_chunk {
 941   char *limit;
 942   struct __sanitizer__obstack_chunk *prev;
 943 };
 944
 945 struct __sanitizer_obstack {
 946   long chunk_size;
 947   struct __sanitizer__obstack_chunk *chunk;
 948   char *object_base;
 949   char *next_free;
 950   uptr more_fields[7];
 951 };
 952
 953 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
 954 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
 955                                             uptr size);
 956 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
 957                                           int whence);
 958 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
 959
 960 struct __sanitizer_cookie_io_functions_t {
 961   __sanitizer_cookie_io_read read;
 962   __sanitizer_cookie_io_write write;
 963   __sanitizer_cookie_io_seek seek;
 964   __sanitizer_cookie_io_close close;
 965 };
 966 #endif
 967
 968 #define IOC_NRBITS 8
 969 #define IOC_TYPEBITS 8
 970 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
 971     defined(__sparc__)
 972 #define IOC_SIZEBITS 13
 973 #define IOC_DIRBITS 3
 974 #define IOC_NONE 1U
 975 #define IOC_WRITE 4U
 976 #define IOC_READ 2U
 977 #else
 978 #define IOC_SIZEBITS 14
 979 #define IOC_DIRBITS 2
 980 #define IOC_NONE 0U
 981 #define IOC_WRITE 1U
 982 #define IOC_READ 2U
 983 #endif
 984 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
 985 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
 986 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
 987 #if defined(IOC_DIRMASK)
 988 #undef IOC_DIRMASK
 989 #endif
 990 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
 991 #define IOC_NRSHIFT 0
 992 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
 993 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
 994 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
 995 #define EVIOC_EV_MAX 0x1f
 996 #define EVIOC_ABS_MAX 0x3f
 997
 998 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
 999 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
1000 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
1001
1002 #if defined(__sparc__)
1003 // In sparc the 14 bits SIZE field overlaps with the
1004 // least significant bit of DIR, so either IOC_READ or
1005 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
1006 #define IOC_SIZE(nr) \
1007   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
1008 #else
1009 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
1010 #endif
1011
1012   extern unsigned struct_ifreq_sz;
1013   extern unsigned struct_termios_sz;
1014   extern unsigned struct_winsize_sz;
1015
1016 #if SANITIZER_LINUX
1017   extern unsigned struct_arpreq_sz;
1018   extern unsigned struct_cdrom_msf_sz;
1019   extern unsigned struct_cdrom_multisession_sz;
1020   extern unsigned struct_cdrom_read_audio_sz;
1021   extern unsigned struct_cdrom_subchnl_sz;
1022   extern unsigned struct_cdrom_ti_sz;
1023   extern unsigned struct_cdrom_tocentry_sz;
1024   extern unsigned struct_cdrom_tochdr_sz;
1025   extern unsigned struct_cdrom_volctrl_sz;
1026   extern unsigned struct_ff_effect_sz;
1027   extern unsigned struct_floppy_drive_params_sz;
1028   extern unsigned struct_floppy_drive_struct_sz;
1029   extern unsigned struct_floppy_fdc_state_sz;
1030   extern unsigned struct_floppy_max_errors_sz;
1031   extern unsigned struct_floppy_raw_cmd_sz;
1032   extern unsigned struct_floppy_struct_sz;
1033   extern unsigned struct_floppy_write_errors_sz;
1034   extern unsigned struct_format_descr_sz;
1035   extern unsigned struct_hd_driveid_sz;
1036   extern unsigned struct_hd_geometry_sz;
1037   extern unsigned struct_input_absinfo_sz;
1038   extern unsigned struct_input_id_sz;
1039   extern unsigned struct_mtpos_sz;
1040   extern unsigned struct_termio_sz;
1041   extern unsigned struct_vt_consize_sz;
1042   extern unsigned struct_vt_sizes_sz;
1043   extern unsigned struct_vt_stat_sz;
1044 #endif  // SANITIZER_LINUX
1045
1046 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1047   extern unsigned struct_copr_buffer_sz;
1048   extern unsigned struct_copr_debug_buf_sz;
1049   extern unsigned struct_copr_msg_sz;
1050   extern unsigned struct_midi_info_sz;
1051   extern unsigned struct_mtget_sz;
1052   extern unsigned struct_mtop_sz;
1053   extern unsigned struct_rtentry_sz;
1054   extern unsigned struct_sbi_instrument_sz;
1055   extern unsigned struct_seq_event_rec_sz;
1056   extern unsigned struct_synth_info_sz;
1057   extern unsigned struct_vt_mode_sz;
1058 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1059
1060 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1061   extern unsigned struct_ax25_parms_struct_sz;
1062   extern unsigned struct_cyclades_monitor_sz;
1063   extern unsigned struct_input_keymap_entry_sz;
1064   extern unsigned struct_ipx_config_data_sz;
1065   extern unsigned struct_kbdiacrs_sz;
1066   extern unsigned struct_kbentry_sz;
1067   extern unsigned struct_kbkeycode_sz;
1068   extern unsigned struct_kbsentry_sz;
1069   extern unsigned struct_mtconfiginfo_sz;
1070   extern unsigned struct_nr_parms_struct_sz;
1071   extern unsigned struct_scc_modem_sz;
1072   extern unsigned struct_scc_stat_sz;
1073   extern unsigned struct_serial_multiport_struct_sz;
1074   extern unsigned struct_serial_struct_sz;
1075   extern unsigned struct_sockaddr_ax25_sz;
1076   extern unsigned struct_unimapdesc_sz;
1077   extern unsigned struct_unimapinit_sz;
1078 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1079
1080 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1081   extern unsigned struct_audio_buf_info_sz;
1082   extern unsigned struct_ppp_stats_sz;
1083 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1084
1085 #if !SANITIZER_ANDROID && !SANITIZER_MAC
1086   extern unsigned struct_sioc_sg_req_sz;
1087   extern unsigned struct_sioc_vif_req_sz;
1088 #endif
1089
1090   // ioctl request identifiers
1091
1092   // A special value to mark ioctls that are not present on the target platform,
1093   // when it can not be determined without including any system headers.
1094   extern const unsigned IOCTL_NOT_PRESENT;
1095
1096   extern unsigned IOCTL_FIOASYNC;
1097   extern unsigned IOCTL_FIOCLEX;
1098   extern unsigned IOCTL_FIOGETOWN;
1099   extern unsigned IOCTL_FIONBIO;
1100   extern unsigned IOCTL_FIONCLEX;
1101   extern unsigned IOCTL_FIOSETOWN;
1102   extern unsigned IOCTL_SIOCADDMULTI;
1103   extern unsigned IOCTL_SIOCATMARK;
1104   extern unsigned IOCTL_SIOCDELMULTI;
1105   extern unsigned IOCTL_SIOCGIFADDR;
1106   extern unsigned IOCTL_SIOCGIFBRDADDR;
1107   extern unsigned IOCTL_SIOCGIFCONF;
1108   extern unsigned IOCTL_SIOCGIFDSTADDR;
1109   extern unsigned IOCTL_SIOCGIFFLAGS;
1110   extern unsigned IOCTL_SIOCGIFMETRIC;
1111   extern unsigned IOCTL_SIOCGIFMTU;
1112   extern unsigned IOCTL_SIOCGIFNETMASK;
1113   extern unsigned IOCTL_SIOCGPGRP;
1114   extern unsigned IOCTL_SIOCSIFADDR;
1115   extern unsigned IOCTL_SIOCSIFBRDADDR;
1116   extern unsigned IOCTL_SIOCSIFDSTADDR;
1117   extern unsigned IOCTL_SIOCSIFFLAGS;
1118   extern unsigned IOCTL_SIOCSIFMETRIC;
1119   extern unsigned IOCTL_SIOCSIFMTU;
1120   extern unsigned IOCTL_SIOCSIFNETMASK;
1121   extern unsigned IOCTL_SIOCSPGRP;
1122   extern unsigned IOCTL_TIOCCONS;
1123   extern unsigned IOCTL_TIOCEXCL;
1124   extern unsigned IOCTL_TIOCGETD;
1125   extern unsigned IOCTL_TIOCGPGRP;
1126   extern unsigned IOCTL_TIOCGWINSZ;
1127   extern unsigned IOCTL_TIOCMBIC;
1128   extern unsigned IOCTL_TIOCMBIS;
1129   extern unsigned IOCTL_TIOCMGET;
1130   extern unsigned IOCTL_TIOCMSET;
1131   extern unsigned IOCTL_TIOCNOTTY;
1132   extern unsigned IOCTL_TIOCNXCL;
1133   extern unsigned IOCTL_TIOCOUTQ;
1134   extern unsigned IOCTL_TIOCPKT;
1135   extern unsigned IOCTL_TIOCSCTTY;
1136   extern unsigned IOCTL_TIOCSETD;
1137   extern unsigned IOCTL_TIOCSPGRP;
1138   extern unsigned IOCTL_TIOCSTI;
1139   extern unsigned IOCTL_TIOCSWINSZ;
1140 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1141   extern unsigned IOCTL_SIOCGETSGCNT;
1142   extern unsigned IOCTL_SIOCGETVIFCNT;
1143 #endif
1144 #if SANITIZER_LINUX
1145   extern unsigned IOCTL_EVIOCGABS;
1146   extern unsigned IOCTL_EVIOCGBIT;
1147   extern unsigned IOCTL_EVIOCGEFFECTS;
1148   extern unsigned IOCTL_EVIOCGID;
1149   extern unsigned IOCTL_EVIOCGKEY;
1150   extern unsigned IOCTL_EVIOCGKEYCODE;
1151   extern unsigned IOCTL_EVIOCGLED;
1152   extern unsigned IOCTL_EVIOCGNAME;
1153   extern unsigned IOCTL_EVIOCGPHYS;
1154   extern unsigned IOCTL_EVIOCGRAB;
1155   extern unsigned IOCTL_EVIOCGREP;
1156   extern unsigned IOCTL_EVIOCGSND;
1157   extern unsigned IOCTL_EVIOCGSW;
1158   extern unsigned IOCTL_EVIOCGUNIQ;
1159   extern unsigned IOCTL_EVIOCGVERSION;
1160   extern unsigned IOCTL_EVIOCRMFF;
1161   extern unsigned IOCTL_EVIOCSABS;
1162   extern unsigned IOCTL_EVIOCSFF;
1163   extern unsigned IOCTL_EVIOCSKEYCODE;
1164   extern unsigned IOCTL_EVIOCSREP;
1165   extern unsigned IOCTL_BLKFLSBUF;
1166   extern unsigned IOCTL_BLKGETSIZE;
1167   extern unsigned IOCTL_BLKRAGET;
1168   extern unsigned IOCTL_BLKRASET;
1169   extern unsigned IOCTL_BLKROGET;
1170   extern unsigned IOCTL_BLKROSET;
1171   extern unsigned IOCTL_BLKRRPART;
1172   extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1173   extern unsigned IOCTL_CDROMEJECT;
1174   extern unsigned IOCTL_CDROMEJECT_SW;
1175   extern unsigned IOCTL_CDROMMULTISESSION;
1176   extern unsigned IOCTL_CDROMPAUSE;
1177   extern unsigned IOCTL_CDROMPLAYMSF;
1178   extern unsigned IOCTL_CDROMPLAYTRKIND;
1179   extern unsigned IOCTL_CDROMREADAUDIO;
1180   extern unsigned IOCTL_CDROMREADCOOKED;
1181   extern unsigned IOCTL_CDROMREADMODE1;
1182   extern unsigned IOCTL_CDROMREADMODE2;
1183   extern unsigned IOCTL_CDROMREADRAW;
1184   extern unsigned IOCTL_CDROMREADTOCENTRY;
1185   extern unsigned IOCTL_CDROMREADTOCHDR;
1186   extern unsigned IOCTL_CDROMRESET;
1187   extern unsigned IOCTL_CDROMRESUME;
1188   extern unsigned IOCTL_CDROMSEEK;
1189   extern unsigned IOCTL_CDROMSTART;
1190   extern unsigned IOCTL_CDROMSTOP;
1191   extern unsigned IOCTL_CDROMSUBCHNL;
1192   extern unsigned IOCTL_CDROMVOLCTRL;
1193   extern unsigned IOCTL_CDROMVOLREAD;
1194   extern unsigned IOCTL_CDROM_GET_UPC;
1195   extern unsigned IOCTL_FDCLRPRM;
1196   extern unsigned IOCTL_FDDEFPRM;
1197   extern unsigned IOCTL_FDFLUSH;
1198   extern unsigned IOCTL_FDFMTBEG;
1199   extern unsigned IOCTL_FDFMTEND;
1200   extern unsigned IOCTL_FDFMTTRK;
1201   extern unsigned IOCTL_FDGETDRVPRM;
1202   extern unsigned IOCTL_FDGETDRVSTAT;
1203   extern unsigned IOCTL_FDGETDRVTYP;
1204   extern unsigned IOCTL_FDGETFDCSTAT;
1205   extern unsigned IOCTL_FDGETMAXERRS;
1206   extern unsigned IOCTL_FDGETPRM;
1207   extern unsigned IOCTL_FDMSGOFF;
1208   extern unsigned IOCTL_FDMSGON;
1209   extern unsigned IOCTL_FDPOLLDRVSTAT;
1210   extern unsigned IOCTL_FDRAWCMD;
1211   extern unsigned IOCTL_FDRESET;
1212   extern unsigned IOCTL_FDSETDRVPRM;
1213   extern unsigned IOCTL_FDSETEMSGTRESH;
1214   extern unsigned IOCTL_FDSETMAXERRS;
1215   extern unsigned IOCTL_FDSETPRM;
1216   extern unsigned IOCTL_FDTWADDLE;
1217   extern unsigned IOCTL_FDWERRORCLR;
1218   extern unsigned IOCTL_FDWERRORGET;
1219   extern unsigned IOCTL_HDIO_DRIVE_CMD;
1220   extern unsigned IOCTL_HDIO_GETGEO;
1221   extern unsigned IOCTL_HDIO_GET_32BIT;
1222   extern unsigned IOCTL_HDIO_GET_DMA;
1223   extern unsigned IOCTL_HDIO_GET_IDENTITY;
1224   extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1225   extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1226   extern unsigned IOCTL_HDIO_GET_NOWERR;
1227   extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1228   extern unsigned IOCTL_HDIO_SET_32BIT;
1229   extern unsigned IOCTL_HDIO_SET_DMA;
1230   extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1231   extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1232   extern unsigned IOCTL_HDIO_SET_NOWERR;
1233   extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1234   extern unsigned IOCTL_MTIOCPOS;
1235   extern unsigned IOCTL_PPPIOCGASYNCMAP;
1236   extern unsigned IOCTL_PPPIOCGDEBUG;
1237   extern unsigned IOCTL_PPPIOCGFLAGS;
1238   extern unsigned IOCTL_PPPIOCGUNIT;
1239   extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1240   extern unsigned IOCTL_PPPIOCSASYNCMAP;
1241   extern unsigned IOCTL_PPPIOCSDEBUG;
1242   extern unsigned IOCTL_PPPIOCSFLAGS;
1243   extern unsigned IOCTL_PPPIOCSMAXCID;
1244   extern unsigned IOCTL_PPPIOCSMRU;
1245   extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1246   extern unsigned IOCTL_SIOCDARP;
1247   extern unsigned IOCTL_SIOCDRARP;
1248   extern unsigned IOCTL_SIOCGARP;
1249   extern unsigned IOCTL_SIOCGIFENCAP;
1250   extern unsigned IOCTL_SIOCGIFHWADDR;
1251   extern unsigned IOCTL_SIOCGIFMAP;
1252   extern unsigned IOCTL_SIOCGIFMEM;
1253   extern unsigned IOCTL_SIOCGIFNAME;
1254   extern unsigned IOCTL_SIOCGIFSLAVE;
1255   extern unsigned IOCTL_SIOCGRARP;
1256   extern unsigned IOCTL_SIOCGSTAMP;
1257   extern unsigned IOCTL_SIOCSARP;
1258   extern unsigned IOCTL_SIOCSIFENCAP;
1259   extern unsigned IOCTL_SIOCSIFHWADDR;
1260   extern unsigned IOCTL_SIOCSIFLINK;
1261   extern unsigned IOCTL_SIOCSIFMAP;
1262   extern unsigned IOCTL_SIOCSIFMEM;
1263   extern unsigned IOCTL_SIOCSIFSLAVE;
1264   extern unsigned IOCTL_SIOCSRARP;
1265   extern unsigned IOCTL_SNDCTL_COPR_HALT;
1266   extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1267   extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1268   extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1269   extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1270   extern unsigned IOCTL_SNDCTL_COPR_RESET;
1271   extern unsigned IOCTL_SNDCTL_COPR_RUN;
1272   extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1273   extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1274   extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1275   extern unsigned IOCTL_TCFLSH;
1276   extern unsigned IOCTL_TCGETA;
1277   extern unsigned IOCTL_TCGETS;
1278   extern unsigned IOCTL_TCSBRK;
1279   extern unsigned IOCTL_TCSBRKP;
1280   extern unsigned IOCTL_TCSETA;
1281   extern unsigned IOCTL_TCSETAF;
1282   extern unsigned IOCTL_TCSETAW;
1283   extern unsigned IOCTL_TCSETS;
1284   extern unsigned IOCTL_TCSETSF;
1285   extern unsigned IOCTL_TCSETSW;
1286   extern unsigned IOCTL_TCXONC;
1287   extern unsigned IOCTL_TIOCGLCKTRMIOS;
1288   extern unsigned IOCTL_TIOCGSOFTCAR;
1289   extern unsigned IOCTL_TIOCINQ;
1290   extern unsigned IOCTL_TIOCLINUX;
1291   extern unsigned IOCTL_TIOCSERCONFIG;
1292   extern unsigned IOCTL_TIOCSERGETLSR;
1293   extern unsigned IOCTL_TIOCSERGWILD;
1294   extern unsigned IOCTL_TIOCSERSWILD;
1295   extern unsigned IOCTL_TIOCSLCKTRMIOS;
1296   extern unsigned IOCTL_TIOCSSOFTCAR;
1297   extern unsigned IOCTL_VT_DISALLOCATE;
1298   extern unsigned IOCTL_VT_GETSTATE;
1299   extern unsigned IOCTL_VT_RESIZE;
1300   extern unsigned IOCTL_VT_RESIZEX;
1301   extern unsigned IOCTL_VT_SENDSIG;
1302 #endif  // SANITIZER_LINUX
1303 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1304   extern unsigned IOCTL_MTIOCGET;
1305   extern unsigned IOCTL_MTIOCTOP;
1306   extern unsigned IOCTL_SIOCADDRT;
1307   extern unsigned IOCTL_SIOCDELRT;
1308   extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1309   extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1310   extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1311   extern unsigned IOCTL_SNDCTL_DSP_POST;
1312   extern unsigned IOCTL_SNDCTL_DSP_RESET;
1313   extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1314   extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1315   extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1316   extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1317   extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1318   extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1319   extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1320   extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1321   extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1322   extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1323   extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1324   extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1325   extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1326   extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1327   extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1328   extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1329   extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1330   extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1331   extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1332   extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1333   extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1334   extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1335   extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1336   extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1337   extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1338   extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1339   extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1340   extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1341   extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1342   extern unsigned IOCTL_SNDCTL_TMR_START;
1343   extern unsigned IOCTL_SNDCTL_TMR_STOP;
1344   extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1345   extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1346   extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1347   extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1348   extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1349   extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1350   extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1351   extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1352   extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1353   extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1354   extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1355   extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1356   extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1357   extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1358   extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1359   extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1360   extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1361   extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1362   extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1363   extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1364   extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1365   extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1366   extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1367   extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1368   extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1369   extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1370   extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1371   extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1372   extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1373   extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1374   extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1375   extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1376   extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1377   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1378   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1379   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1380   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1381   extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1382   extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1383   extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1384   extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1385   extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1386   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1387   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1388   extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1389   extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1390   extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1391   extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1392   extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1393   extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1394   extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1395   extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1396   extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1397   extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1398   extern unsigned IOCTL_VT_ACTIVATE;
1399   extern unsigned IOCTL_VT_GETMODE;
1400   extern unsigned IOCTL_VT_OPENQRY;
1401   extern unsigned IOCTL_VT_RELDISP;
1402   extern unsigned IOCTL_VT_SETMODE;
1403   extern unsigned IOCTL_VT_WAITACTIVE;
1404 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
1405
1406 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1407   extern unsigned IOCTL_CYGETDEFTHRESH;
1408   extern unsigned IOCTL_CYGETDEFTIMEOUT;
1409   extern unsigned IOCTL_CYGETMON;
1410   extern unsigned IOCTL_CYGETTHRESH;
1411   extern unsigned IOCTL_CYGETTIMEOUT;
1412   extern unsigned IOCTL_CYSETDEFTHRESH;
1413   extern unsigned IOCTL_CYSETDEFTIMEOUT;
1414   extern unsigned IOCTL_CYSETTHRESH;
1415   extern unsigned IOCTL_CYSETTIMEOUT;
1416   extern unsigned IOCTL_EQL_EMANCIPATE;
1417   extern unsigned IOCTL_EQL_ENSLAVE;
1418   extern unsigned IOCTL_EQL_GETMASTRCFG;
1419   extern unsigned IOCTL_EQL_GETSLAVECFG;
1420   extern unsigned IOCTL_EQL_SETMASTRCFG;
1421   extern unsigned IOCTL_EQL_SETSLAVECFG;
1422   extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1423   extern unsigned IOCTL_EVIOCGPROP;
1424   extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1425   extern unsigned IOCTL_FS_IOC_GETFLAGS;
1426   extern unsigned IOCTL_FS_IOC_GETVERSION;
1427   extern unsigned IOCTL_FS_IOC_SETFLAGS;
1428   extern unsigned IOCTL_FS_IOC_SETVERSION;
1429   extern unsigned IOCTL_GIO_CMAP;
1430   extern unsigned IOCTL_GIO_FONT;
1431   extern unsigned IOCTL_GIO_UNIMAP;
1432   extern unsigned IOCTL_GIO_UNISCRNMAP;
1433   extern unsigned IOCTL_KDADDIO;
1434   extern unsigned IOCTL_KDDELIO;
1435   extern unsigned IOCTL_KDGETKEYCODE;
1436   extern unsigned IOCTL_KDGKBDIACR;
1437   extern unsigned IOCTL_KDGKBENT;
1438   extern unsigned IOCTL_KDGKBLED;
1439   extern unsigned IOCTL_KDGKBMETA;
1440   extern unsigned IOCTL_KDGKBSENT;
1441   extern unsigned IOCTL_KDMAPDISP;
1442   extern unsigned IOCTL_KDSETKEYCODE;
1443   extern unsigned IOCTL_KDSIGACCEPT;
1444   extern unsigned IOCTL_KDSKBDIACR;
1445   extern unsigned IOCTL_KDSKBENT;
1446   extern unsigned IOCTL_KDSKBLED;
1447   extern unsigned IOCTL_KDSKBMETA;
1448   extern unsigned IOCTL_KDSKBSENT;
1449   extern unsigned IOCTL_KDUNMAPDISP;
1450   extern unsigned IOCTL_LPABORT;
1451   extern unsigned IOCTL_LPABORTOPEN;
1452   extern unsigned IOCTL_LPCAREFUL;
1453   extern unsigned IOCTL_LPCHAR;
1454   extern unsigned IOCTL_LPGETIRQ;
1455   extern unsigned IOCTL_LPGETSTATUS;
1456   extern unsigned IOCTL_LPRESET;
1457   extern unsigned IOCTL_LPSETIRQ;
1458   extern unsigned IOCTL_LPTIME;
1459   extern unsigned IOCTL_LPWAIT;
1460   extern unsigned IOCTL_MTIOCGETCONFIG;
1461   extern unsigned IOCTL_MTIOCSETCONFIG;
1462   extern unsigned IOCTL_PIO_CMAP;
1463   extern unsigned IOCTL_PIO_FONT;
1464   extern unsigned IOCTL_PIO_UNIMAP;
1465   extern unsigned IOCTL_PIO_UNIMAPCLR;
1466   extern unsigned IOCTL_PIO_UNISCRNMAP;
1467   extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1468   extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1469   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1470   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1471   extern unsigned IOCTL_SIOCAIPXITFCRT;
1472   extern unsigned IOCTL_SIOCAIPXPRISLT;
1473   extern unsigned IOCTL_SIOCAX25ADDUID;
1474   extern unsigned IOCTL_SIOCAX25DELUID;
1475   extern unsigned IOCTL_SIOCAX25GETPARMS;
1476   extern unsigned IOCTL_SIOCAX25GETUID;
1477   extern unsigned IOCTL_SIOCAX25NOUID;
1478   extern unsigned IOCTL_SIOCAX25SETPARMS;
1479   extern unsigned IOCTL_SIOCDEVPLIP;
1480   extern unsigned IOCTL_SIOCIPXCFGDATA;
1481   extern unsigned IOCTL_SIOCNRDECOBS;
1482   extern unsigned IOCTL_SIOCNRGETPARMS;
1483   extern unsigned IOCTL_SIOCNRRTCTL;
1484   extern unsigned IOCTL_SIOCNRSETPARMS;
1485   extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1486   extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1487   extern unsigned IOCTL_TIOCGSERIAL;
1488   extern unsigned IOCTL_TIOCSERGETMULTI;
1489   extern unsigned IOCTL_TIOCSERSETMULTI;
1490   extern unsigned IOCTL_TIOCSSERIAL;
1491 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1492
1493 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1494   extern unsigned IOCTL_GIO_SCRNMAP;
1495   extern unsigned IOCTL_KDDISABIO;
1496   extern unsigned IOCTL_KDENABIO;
1497   extern unsigned IOCTL_KDGETLED;
1498   extern unsigned IOCTL_KDGETMODE;
1499   extern unsigned IOCTL_KDGKBMODE;
1500   extern unsigned IOCTL_KDGKBTYPE;
1501   extern unsigned IOCTL_KDMKTONE;
1502   extern unsigned IOCTL_KDSETLED;
1503   extern unsigned IOCTL_KDSETMODE;
1504   extern unsigned IOCTL_KDSKBMODE;
1505   extern unsigned IOCTL_KIOCSOUND;
1506   extern unsigned IOCTL_PIO_SCRNMAP;
1507 #endif
1508
1509   extern const int si_SEGV_MAPERR;
1510   extern const int si_SEGV_ACCERR;
1511 }  // namespace __sanitizer
1512
1513 #define CHECK_TYPE_SIZE(TYPE) \
1514   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1515
1516 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1517   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
1518                  sizeof(((CLASS *) NULL)->MEMBER));                \
1519   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
1520                  offsetof(CLASS, MEMBER))
1521
1522 // For sigaction, which is a function and struct at the same time,
1523 // and thus requires explicit "struct" in sizeof() expression.
1524 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1525   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
1526                  sizeof(((struct CLASS *) NULL)->MEMBER));                \
1527   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==          \
1528                  offsetof(struct CLASS, MEMBER))
1529
1530 #define SIGACTION_SYMNAME sigaction
1531
1532 #endif  // SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
1533
1534 #endif