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

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