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