libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h

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