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