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

   1 //===-- sanitizer_platform_limits_posix.h ---------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file is a part of Sanitizer common code.
  11 //
  12 // Sizes and layouts of platform-specific POSIX data structures.
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
  16 #define SANITIZER_PLATFORM_LIMITS_POSIX_H
  17
  18 #if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
  19
  20 #include "sanitizer_internal_defs.h"
  21 #include "sanitizer_platform.h"
  22
  23 #if SANITIZER_FREEBSD
  24 // FreeBSD's dlopen() returns a pointer to an Obj_Entry structure that
  25 // incorporates the map structure.
  26 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) \
  27     ((link_map*)((handle) == nullptr ? nullptr : ((char*)(handle) + 544)))
  28 // Get sys/_types.h, because that tells us whether 64-bit inodes are
  29 // used in struct dirent below.
  30 #include <sys/_types.h>
  31 #else
  32 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
  33 #endif  // !SANITIZER_FREEBSD
  34
  35 #ifndef __GLIBC_PREREQ
  36 #define __GLIBC_PREREQ(x, y) 0
  37 #endif
  38
  39 namespace __sanitizer {
  40   extern unsigned struct_utsname_sz;
  41   extern unsigned struct_stat_sz;
  42 #if !SANITIZER_FREEBSD && !SANITIZER_IOS
  43   extern unsigned struct_stat64_sz;
  44 #endif
  45   extern unsigned struct_rusage_sz;
  46   extern unsigned siginfo_t_sz;
  47   extern unsigned struct_itimerval_sz;
  48   extern unsigned pthread_t_sz;
  49   extern unsigned pthread_mutex_t_sz;
  50   extern unsigned pthread_cond_t_sz;
  51   extern unsigned pid_t_sz;
  52   extern unsigned timeval_sz;
  53   extern unsigned uid_t_sz;
  54   extern unsigned gid_t_sz;
  55   extern unsigned mbstate_t_sz;
  56   extern unsigned struct_timezone_sz;
  57   extern unsigned struct_tms_sz;
  58   extern unsigned struct_itimerspec_sz;
  59   extern unsigned struct_sigevent_sz;
  60   extern unsigned struct_sched_param_sz;
  61   extern unsigned struct_statfs64_sz;
  62
  63 #if !SANITIZER_ANDROID
  64   extern unsigned struct_statfs_sz;
  65   extern unsigned struct_sockaddr_sz;
  66   extern unsigned ucontext_t_sz;
  67 #endif // !SANITIZER_ANDROID
  68
  69 #if SANITIZER_LINUX
  70
  71 #if defined(__x86_64__)
  72   const unsigned struct_kernel_stat_sz = 144;
  73   const unsigned struct_kernel_stat64_sz = 0;
  74 #elif defined(__i386__)
  75   const unsigned struct_kernel_stat_sz = 64;
  76   const unsigned struct_kernel_stat64_sz = 96;
  77 #elif defined(__arm__)
  78   const unsigned struct_kernel_stat_sz = 64;
  79   const unsigned struct_kernel_stat64_sz = 104;
  80 #elif defined(__aarch64__)
  81   const unsigned struct_kernel_stat_sz = 128;
  82   const unsigned struct_kernel_stat64_sz = 104;
  83 #elif defined(__powerpc__) && !defined(__powerpc64__)
  84   const unsigned struct_kernel_stat_sz = 72;
  85   const unsigned struct_kernel_stat64_sz = 104;
  86 #elif defined(__powerpc64__)
  87   const unsigned struct_kernel_stat_sz = 144;
  88   const unsigned struct_kernel_stat64_sz = 104;
  89 #elif defined(__riscv)
  90   /* RISCVTODO: check that these values are correct */
  91   const unsigned struct_kernel_stat_sz = 128;
  92   const unsigned struct_kernel_stat64_sz = 128;
  93 #elif defined(__mips__)
  94   const unsigned struct_kernel_stat_sz =
  95                  SANITIZER_ANDROID ? FIRST_32_SECOND_64(104, 128) :
  96                                      FIRST_32_SECOND_64(160, 216);
  97   const unsigned struct_kernel_stat64_sz = 104;
  98 #elif defined(__s390__) && !defined(__s390x__)
  99   const unsigned struct_kernel_stat_sz = 64;
 100   const unsigned struct_kernel_stat64_sz = 104;
 101 #elif defined(__s390x__)
 102   const unsigned struct_kernel_stat_sz = 144;
 103   const unsigned struct_kernel_stat64_sz = 0;
 104 #elif defined(__sparc__) && defined(__arch64__)
 105   const unsigned struct___old_kernel_stat_sz = 0;
 106   const unsigned struct_kernel_stat_sz = 104;
 107   const unsigned struct_kernel_stat64_sz = 144;
 108 #elif defined(__sparc__) && !defined(__arch64__)
 109   const unsigned struct___old_kernel_stat_sz = 0;
 110   const unsigned struct_kernel_stat_sz = 64;
 111   const unsigned struct_kernel_stat64_sz = 104;
 112 #endif
 113   struct __sanitizer_perf_event_attr {
 114     unsigned type;
 115     unsigned size;
 116     // More fields that vary with the kernel version.
 117   };
 118
 119   extern unsigned struct_epoll_event_sz;
 120   extern unsigned struct_sysinfo_sz;
 121   extern unsigned __user_cap_header_struct_sz;
 122   extern unsigned __user_cap_data_struct_sz;
 123   extern unsigned struct_new_utsname_sz;
 124   extern unsigned struct_old_utsname_sz;
 125   extern unsigned struct_oldold_utsname_sz;
 126
 127   const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
 128 #endif  // SANITIZER_LINUX
 129
 130 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 131
 132 #if defined(__powerpc64__) || defined(__riscv) || defined(__s390__)
 133   const unsigned struct___old_kernel_stat_sz = 0;
 134 #elif !defined(__sparc__)
 135   const unsigned struct___old_kernel_stat_sz = 32;
 136 #endif
 137
 138   extern unsigned struct_rlimit_sz;
 139   extern unsigned struct_utimbuf_sz;
 140   extern unsigned struct_timespec_sz;
 141
 142   struct __sanitizer_iocb {
 143     u64   aio_data;
 144     u32   aio_key_or_aio_reserved1; // Simply crazy.
 145     u32   aio_reserved1_or_aio_key; // Luckily, we don't need these.
 146     u16   aio_lio_opcode;
 147     s16   aio_reqprio;
 148     u32   aio_fildes;
 149     u64   aio_buf;
 150     u64   aio_nbytes;
 151     s64   aio_offset;
 152     u64   aio_reserved2;
 153     u64   aio_reserved3;
 154   };
 155
 156   struct __sanitizer_io_event {
 157     u64 data;
 158     u64 obj;
 159     u64 res;
 160     u64 res2;
 161   };
 162
 163   const unsigned iocb_cmd_pread = 0;
 164   const unsigned iocb_cmd_pwrite = 1;
 165   const unsigned iocb_cmd_preadv = 7;
 166   const unsigned iocb_cmd_pwritev = 8;
 167
 168   struct __sanitizer___sysctl_args {
 169     int *name;
 170     int nlen;
 171     void *oldval;
 172     uptr *oldlenp;
 173     void *newval;
 174     uptr newlen;
 175     unsigned long ___unused[4];
 176   };
 177
 178   const unsigned old_sigset_t_sz = sizeof(unsigned long);
 179
 180   struct __sanitizer_sem_t {
 181 #if SANITIZER_ANDROID && defined(_LP64)
 182     int data[4];
 183 #elif SANITIZER_ANDROID && !defined(_LP64)
 184     int data;
 185 #elif SANITIZER_LINUX
 186     uptr data[4];
 187 #elif SANITIZER_FREEBSD
 188     u32 data[4];
 189 #endif
 190   };
 191 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 192
 193 #if SANITIZER_ANDROID
 194   struct __sanitizer_mallinfo {
 195     uptr v[10];
 196   };
 197 #endif
 198
 199 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 200   struct __sanitizer_mallinfo {
 201     int v[10];
 202   };
 203
 204   extern unsigned struct_ustat_sz;
 205   extern unsigned struct_rlimit64_sz;
 206   extern unsigned struct_statvfs64_sz;
 207
 208   struct __sanitizer_ipc_perm {
 209     int __key;
 210     int uid;
 211     int gid;
 212     int cuid;
 213     int cgid;
 214 #ifdef __powerpc__
 215     unsigned mode;
 216     unsigned __seq;
 217     u64 __unused1;
 218     u64 __unused2;
 219 #elif defined(__sparc__)
 220 #if defined(__arch64__)
 221     unsigned mode;
 222     unsigned short __pad1;
 223 #else
 224     unsigned short __pad1;
 225     unsigned short mode;
 226     unsigned short __pad2;
 227 #endif
 228     unsigned short __seq;
 229     unsigned long long __unused1;
 230     unsigned long long __unused2;
 231 #elif defined(__mips__) || defined(__aarch64__) || defined(__s390x__)
 232     unsigned int mode;
 233     unsigned short __seq;
 234     unsigned short __pad1;
 235     unsigned long __unused1;
 236     unsigned long __unused2;
 237 #else
 238     unsigned short mode;
 239     unsigned short __pad1;
 240     unsigned short __seq;
 241     unsigned short __pad2;
 242 #if defined(__x86_64__) && !defined(_LP64)
 243     u64 __unused1;
 244     u64 __unused2;
 245 #else
 246     unsigned long __unused1;
 247     unsigned long __unused2;
 248 #endif
 249 #endif
 250   };
 251
 252   struct __sanitizer_shmid_ds {
 253     __sanitizer_ipc_perm shm_perm;
 254   #if defined(__sparc__)
 255   #if !defined(__arch64__)
 256     u32 __pad1;
 257   #endif
 258     long shm_atime;
 259   #if !defined(__arch64__)
 260     u32 __pad2;
 261   #endif
 262     long shm_dtime;
 263   #if !defined(__arch64__)
 264     u32 __pad3;
 265   #endif
 266     long shm_ctime;
 267     uptr shm_segsz;
 268     int shm_cpid;
 269     int shm_lpid;
 270     unsigned long shm_nattch;
 271     unsigned long __glibc_reserved1;
 272     unsigned long __glibc_reserved2;
 273   #else
 274   #ifndef __powerpc__
 275     uptr shm_segsz;
 276   #elif !defined(__powerpc64__)
 277     uptr __unused0;
 278   #endif
 279   #if defined(__x86_64__) && !defined(_LP64)
 280     u64 shm_atime;
 281     u64 shm_dtime;
 282     u64 shm_ctime;
 283   #else
 284     uptr shm_atime;
 285   #if !defined(_LP64) && !defined(__mips__)
 286     uptr __unused1;
 287   #endif
 288     uptr shm_dtime;
 289   #if !defined(_LP64) && !defined(__mips__)
 290     uptr __unused2;
 291   #endif
 292     uptr shm_ctime;
 293   #if !defined(_LP64) && !defined(__mips__)
 294     uptr __unused3;
 295   #endif
 296   #endif
 297   #ifdef __powerpc__
 298     uptr shm_segsz;
 299   #endif
 300     int shm_cpid;
 301     int shm_lpid;
 302   #if defined(__x86_64__) && !defined(_LP64)
 303     u64 shm_nattch;
 304     u64 __unused4;
 305     u64 __unused5;
 306   #else
 307     uptr shm_nattch;
 308     uptr __unused4;
 309     uptr __unused5;
 310   #endif
 311 #endif
 312   };
 313 #elif SANITIZER_FREEBSD
 314   struct __sanitizer_ipc_perm {
 315     unsigned int cuid;
 316     unsigned int cgid;
 317     unsigned int uid;
 318     unsigned int gid;
 319     unsigned short mode;
 320     unsigned short seq;
 321     long key;
 322   };
 323
 324   struct __sanitizer_shmid_ds {
 325     __sanitizer_ipc_perm shm_perm;
 326     unsigned long shm_segsz;
 327     unsigned int shm_lpid;
 328     unsigned int shm_cpid;
 329     int shm_nattch;
 330     unsigned long shm_atime;
 331     unsigned long shm_dtime;
 332     unsigned long shm_ctime;
 333   };
 334 #endif
 335
 336 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 337   extern unsigned struct_msqid_ds_sz;
 338   extern unsigned struct_mq_attr_sz;
 339   extern unsigned struct_timex_sz;
 340   extern unsigned struct_statvfs_sz;
 341 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 342
 343   struct __sanitizer_iovec {
 344     void *iov_base;
 345     uptr iov_len;
 346   };
 347
 348 #if !SANITIZER_ANDROID
 349   struct __sanitizer_ifaddrs {
 350     struct __sanitizer_ifaddrs *ifa_next;
 351     char *ifa_name;
 352     unsigned int ifa_flags;
 353     void *ifa_addr;    // (struct sockaddr *)
 354     void *ifa_netmask; // (struct sockaddr *)
 355     // This is a union on Linux.
 356 # ifdef ifa_dstaddr
 357 # undef ifa_dstaddr
 358 # endif
 359     void *ifa_dstaddr; // (struct sockaddr *)
 360     void *ifa_data;
 361   };
 362 #endif  // !SANITIZER_ANDROID
 363
 364 #if SANITIZER_MAC
 365   typedef unsigned long __sanitizer_pthread_key_t;
 366 #else
 367   typedef unsigned __sanitizer_pthread_key_t;
 368 #endif
 369
 370 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 371
 372   struct __sanitizer_XDR {
 373     int x_op;
 374     void *x_ops;
 375     uptr x_public;
 376     uptr x_private;
 377     uptr x_base;
 378     unsigned x_handy;
 379   };
 380
 381   const int __sanitizer_XDR_ENCODE = 0;
 382   const int __sanitizer_XDR_DECODE = 1;
 383   const int __sanitizer_XDR_FREE = 2;
 384 #endif
 385
 386   struct __sanitizer_passwd {
 387     char *pw_name;
 388     char *pw_passwd;
 389     int pw_uid;
 390     int pw_gid;
 391 #if SANITIZER_MAC || SANITIZER_FREEBSD
 392     long pw_change;
 393     char *pw_class;
 394 #endif
 395 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
 396     char *pw_gecos;
 397 #endif
 398     char *pw_dir;
 399     char *pw_shell;
 400 #if SANITIZER_MAC || SANITIZER_FREEBSD
 401     long pw_expire;
 402 #endif
 403 #if SANITIZER_FREEBSD
 404     int pw_fields;
 405 #endif
 406   };
 407
 408   struct __sanitizer_group {
 409     char *gr_name;
 410     char *gr_passwd;
 411     int gr_gid;
 412     char **gr_mem;
 413   };
 414
 415 #if defined(__x86_64__) && !defined(_LP64)
 416   typedef long long __sanitizer_time_t;
 417 #else
 418   typedef long __sanitizer_time_t;
 419 #endif
 420
 421   struct __sanitizer_timeb {
 422     __sanitizer_time_t time;
 423     unsigned short millitm;
 424     short timezone;
 425     short dstflag;
 426   };
 427
 428   struct __sanitizer_ether_addr {
 429     u8 octet[6];
 430   };
 431
 432   struct __sanitizer_tm {
 433     int tm_sec;
 434     int tm_min;
 435     int tm_hour;
 436     int tm_mday;
 437     int tm_mon;
 438     int tm_year;
 439     int tm_wday;
 440     int tm_yday;
 441     int tm_isdst;
 442     long int tm_gmtoff;
 443     const char *tm_zone;
 444   };
 445
 446 #if SANITIZER_LINUX
 447   struct __sanitizer_mntent {
 448     char *mnt_fsname;
 449     char *mnt_dir;
 450     char *mnt_type;
 451     char *mnt_opts;
 452     int mnt_freq;
 453     int mnt_passno;
 454   };
 455 #endif
 456
 457 #if SANITIZER_MAC || SANITIZER_FREEBSD
 458   struct __sanitizer_msghdr {
 459     void *msg_name;
 460     unsigned msg_namelen;
 461     struct __sanitizer_iovec *msg_iov;
 462     unsigned msg_iovlen;
 463     void *msg_control;
 464     unsigned msg_controllen;
 465     int msg_flags;
 466   };
 467   struct __sanitizer_cmsghdr {
 468     unsigned cmsg_len;
 469     int cmsg_level;
 470     int cmsg_type;
 471   };
 472 #else
 473   struct __sanitizer_msghdr {
 474     void *msg_name;
 475     unsigned msg_namelen;
 476     struct __sanitizer_iovec *msg_iov;
 477     uptr msg_iovlen;
 478     void *msg_control;
 479     uptr msg_controllen;
 480     int msg_flags;
 481   };
 482   struct __sanitizer_cmsghdr {
 483     uptr cmsg_len;
 484     int cmsg_level;
 485     int cmsg_type;
 486   };
 487 #endif
 488
 489 #if SANITIZER_MAC
 490   struct __sanitizer_dirent {
 491     unsigned long long d_ino;
 492     unsigned long long d_seekoff;
 493     unsigned short d_reclen;
 494     // more fields that we don't care about
 495   };
 496 #elif SANITIZER_FREEBSD
 497   struct __sanitizer_dirent {
 498 #if defined(__INO64)
 499     unsigned long long d_fileno;
 500     unsigned long long d_off;
 501 #else
 502     unsigned int d_fileno;
 503 #endif
 504     unsigned short d_reclen;
 505     // more fields that we don't care about
 506   };
 507 #elif SANITIZER_ANDROID || defined(__x86_64__)
 508   struct __sanitizer_dirent {
 509     unsigned long long d_ino;
 510     unsigned long long d_off;
 511     unsigned short d_reclen;
 512     // more fields that we don't care about
 513   };
 514 #else
 515   struct __sanitizer_dirent {
 516     uptr d_ino;
 517     uptr d_off;
 518     unsigned short d_reclen;
 519     // more fields that we don't care about
 520   };
 521 #endif
 522
 523 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 524   struct __sanitizer_dirent64 {
 525     unsigned long long d_ino;
 526     unsigned long long d_off;
 527     unsigned short d_reclen;
 528     // more fields that we don't care about
 529   };
 530 #endif
 531
 532 // 'clock_t' is 32 bits wide on x64 FreeBSD
 533 #if SANITIZER_FREEBSD
 534   typedef int __sanitizer_clock_t;
 535 #elif defined(__x86_64__) && !defined(_LP64)
 536   typedef long long __sanitizer_clock_t;
 537 #else
 538   typedef long __sanitizer_clock_t;
 539 #endif
 540
 541 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 542   typedef int __sanitizer_clockid_t;
 543 #endif
 544
 545 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 546 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)\
 547                    || defined(__mips__)
 548   typedef unsigned __sanitizer___kernel_uid_t;
 549   typedef unsigned __sanitizer___kernel_gid_t;
 550 #else
 551   typedef unsigned short __sanitizer___kernel_uid_t;
 552   typedef unsigned short __sanitizer___kernel_gid_t;
 553 #endif
 554 #if defined(__x86_64__) && !defined(_LP64)
 555   typedef long long __sanitizer___kernel_off_t;
 556 #else
 557   typedef long __sanitizer___kernel_off_t;
 558 #endif
 559
 560 #if defined(__powerpc__) || defined(__mips__) || defined(__riscv)
 561   typedef unsigned int __sanitizer___kernel_old_uid_t;
 562   typedef unsigned int __sanitizer___kernel_old_gid_t;
 563 #else
 564   typedef unsigned short __sanitizer___kernel_old_uid_t;
 565   typedef unsigned short __sanitizer___kernel_old_gid_t;
 566 #endif
 567
 568   typedef long long __sanitizer___kernel_loff_t;
 569   typedef struct {
 570     unsigned long fds_bits[1024 / (8 * sizeof(long))];
 571   } __sanitizer___kernel_fd_set;
 572 #endif
 573
 574   // This thing depends on the platform. We are only interested in the upper
 575   // limit. Verified with a compiler assert in .cc.
 576   const int pthread_attr_t_max_sz = 128;
 577   union __sanitizer_pthread_attr_t {
 578     char size[pthread_attr_t_max_sz]; // NOLINT
 579     void *align;
 580   };
 581
 582 #if SANITIZER_ANDROID
 583 # if SANITIZER_MIPS
 584   typedef unsigned long __sanitizer_sigset_t[16/sizeof(unsigned long)];
 585 # else
 586   typedef unsigned long __sanitizer_sigset_t;
 587 # endif
 588 #elif SANITIZER_MAC
 589   typedef unsigned __sanitizer_sigset_t;
 590 #elif SANITIZER_LINUX
 591   struct __sanitizer_sigset_t {
 592     // The size is determined by looking at sizeof of real sigset_t on linux.
 593     uptr val[128 / sizeof(uptr)];
 594   };
 595 #elif SANITIZER_FREEBSD
 596   struct __sanitizer_sigset_t {
 597      // uint32_t * 4
 598      unsigned int __bits[4];
 599   };
 600 #endif
 601
 602   struct __sanitizer_siginfo {
 603     // The size is determined by looking at sizeof of real siginfo_t on linux.
 604     u64 opaque[128 / sizeof(u64)];
 605   };
 606
 607   using __sanitizer_sighandler_ptr = void (*)(int sig);
 608   using __sanitizer_sigactionhandler_ptr =
 609       void (*)(int sig, __sanitizer_siginfo *siginfo, void *uctx);
 610
 611   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 612 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
 613   struct __sanitizer_sigaction {
 614     unsigned sa_flags;
 615     union {
 616       __sanitizer_sigactionhandler_ptr sigaction;
 617       __sanitizer_sighandler_ptr handler;
 618     };
 619     __sanitizer_sigset_t sa_mask;
 620     void (*sa_restorer)();
 621   };
 622 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
 623   struct __sanitizer_sigaction {
 624     unsigned sa_flags;
 625     union {
 626       __sanitizer_sigactionhandler_ptr sigaction;
 627       __sanitizer_sighandler_ptr handler;
 628     };
 629     __sanitizer_sigset_t sa_mask;
 630   };
 631 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
 632   struct __sanitizer_sigaction {
 633     union {
 634       __sanitizer_sigactionhandler_ptr sigaction;
 635       __sanitizer_sighandler_ptr handler;
 636     };
 637     __sanitizer_sigset_t sa_mask;
 638     uptr sa_flags;
 639     void (*sa_restorer)();
 640   };
 641 #else // !SANITIZER_ANDROID
 642   struct __sanitizer_sigaction {
 643 #if defined(__mips__) && !SANITIZER_FREEBSD
 644     unsigned int sa_flags;
 645 #endif
 646     union {
 647       __sanitizer_sigactionhandler_ptr sigaction;
 648       __sanitizer_sighandler_ptr handler;
 649     };
 650 #if SANITIZER_FREEBSD
 651     int sa_flags;
 652     __sanitizer_sigset_t sa_mask;
 653 #else
 654 #if defined(__s390x__)
 655     int sa_resv;
 656 #else
 657     __sanitizer_sigset_t sa_mask;
 658 #endif
 659 #ifndef __mips__
 660 #if defined(__sparc__)
 661 #if __GLIBC_PREREQ (2, 20)
 662     // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
 663 #if defined(__arch64__)
 664     // To maintain ABI compatibility on sparc64 when switching to an int,
 665     // __glibc_reserved0 was added.
 666     int __glibc_reserved0;
 667 #endif
 668     int sa_flags;
 669 #else
 670     unsigned long sa_flags;
 671 #endif
 672 #else
 673     int sa_flags;
 674 #endif
 675 #endif
 676 #endif
 677 #if SANITIZER_LINUX
 678     void (*sa_restorer)();
 679 #endif
 680 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
 681     int sa_resv[1];
 682 #endif
 683 #if defined(__s390x__)
 684     __sanitizer_sigset_t sa_mask;
 685 #endif
 686   };
 687 #endif // !SANITIZER_ANDROID
 688
 689 #if SANITIZER_FREEBSD
 690   typedef __sanitizer_sigset_t __sanitizer_kernel_sigset_t;
 691 #elif defined(__mips__)
 692   struct __sanitizer_kernel_sigset_t {
 693     uptr sig[2];
 694   };
 695 #else
 696   struct __sanitizer_kernel_sigset_t {
 697     u8 sig[8];
 698   };
 699 #endif
 700
 701   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 702 #if SANITIZER_MIPS
 703   struct __sanitizer_kernel_sigaction_t {
 704     unsigned int sa_flags;
 705     union {
 706       void (*handler)(int signo);
 707       void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
 708     };
 709     __sanitizer_kernel_sigset_t sa_mask;
 710     void (*sa_restorer)(void);
 711   };
 712 #else
 713   struct __sanitizer_kernel_sigaction_t {
 714     union {
 715       void (*handler)(int signo);
 716       void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
 717     };
 718     unsigned long sa_flags;
 719     void (*sa_restorer)(void);
 720     __sanitizer_kernel_sigset_t sa_mask;
 721   };
 722 #endif
 723
 724   extern const uptr sig_ign;
 725   extern const uptr sig_dfl;
 726   extern const uptr sig_err;
 727   extern const uptr sa_siginfo;
 728
 729 #if SANITIZER_LINUX
 730   extern int e_tabsz;
 731 #endif
 732
 733   extern int af_inet;
 734   extern int af_inet6;
 735   uptr __sanitizer_in_addr_sz(int af);
 736
 737 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 738   struct __sanitizer_dl_phdr_info {
 739     uptr dlpi_addr;
 740     const char *dlpi_name;
 741     const void *dlpi_phdr;
 742     short dlpi_phnum;
 743   };
 744
 745   extern unsigned struct_ElfW_Phdr_sz;
 746 #endif
 747
 748   struct __sanitizer_addrinfo {
 749     int ai_flags;
 750     int ai_family;
 751     int ai_socktype;
 752     int ai_protocol;
 753 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 754     unsigned ai_addrlen;
 755     char *ai_canonname;
 756     void *ai_addr;
 757 #else // LINUX
 758     unsigned ai_addrlen;
 759     void *ai_addr;
 760     char *ai_canonname;
 761 #endif
 762     struct __sanitizer_addrinfo *ai_next;
 763   };
 764
 765   struct __sanitizer_hostent {
 766     char *h_name;
 767     char **h_aliases;
 768     int h_addrtype;
 769     int h_length;
 770     char **h_addr_list;
 771   };
 772
 773   struct __sanitizer_pollfd {
 774     int fd;
 775     short events;
 776     short revents;
 777   };
 778
 779 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 780   typedef unsigned __sanitizer_nfds_t;
 781 #else
 782   typedef unsigned long __sanitizer_nfds_t;
 783 #endif
 784
 785 #if !SANITIZER_ANDROID
 786 # if SANITIZER_LINUX
 787   struct __sanitizer_glob_t {
 788     uptr gl_pathc;
 789     char **gl_pathv;
 790     uptr gl_offs;
 791     int gl_flags;
 792
 793     void (*gl_closedir)(void *dirp);
 794     void *(*gl_readdir)(void *dirp);
 795     void *(*gl_opendir)(const char *);
 796     int (*gl_lstat)(const char *, void *);
 797     int (*gl_stat)(const char *, void *);
 798   };
 799 # elif SANITIZER_FREEBSD
 800   struct __sanitizer_glob_t {
 801     uptr gl_pathc;
 802     uptr gl_matchc;
 803     uptr gl_offs;
 804     int gl_flags;
 805     char **gl_pathv;
 806     int (*gl_errfunc)(const char*, int);
 807     void (*gl_closedir)(void *dirp);
 808     struct dirent *(*gl_readdir)(void *dirp);
 809     void *(*gl_opendir)(const char*);
 810     int (*gl_lstat)(const char*, void* /* struct stat* */);
 811     int (*gl_stat)(const char*, void* /* struct stat* */);
 812   };
 813 # endif  // SANITIZER_FREEBSD
 814
 815 # if SANITIZER_LINUX || SANITIZER_FREEBSD
 816   extern int glob_nomatch;
 817   extern int glob_altdirfunc;
 818 # endif
 819 #endif  // !SANITIZER_ANDROID
 820
 821   extern unsigned path_max;
 822
 823   struct __sanitizer_wordexp_t {
 824     uptr we_wordc;
 825     char **we_wordv;
 826     uptr we_offs;
 827 #if SANITIZER_FREEBSD
 828     char *we_strings;
 829     uptr we_nbytes;
 830 #endif
 831   };
 832
 833 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 834   struct __sanitizer_FILE {
 835     int _flags;
 836     char *_IO_read_ptr;
 837     char *_IO_read_end;
 838     char *_IO_read_base;
 839     char *_IO_write_base;
 840     char *_IO_write_ptr;
 841     char *_IO_write_end;
 842     char *_IO_buf_base;
 843     char *_IO_buf_end;
 844     char *_IO_save_base;
 845     char *_IO_backup_base;
 846     char *_IO_save_end;
 847     void *_markers;
 848     __sanitizer_FILE *_chain;
 849     int _fileno;
 850   };
 851 # define SANITIZER_HAS_STRUCT_FILE 1
 852 #else
 853   typedef void __sanitizer_FILE;
 854 # define SANITIZER_HAS_STRUCT_FILE 0
 855 #endif
 856
 857 #if SANITIZER_LINUX && !SANITIZER_ANDROID && \
 858   (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
 859     defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
 860     defined(__s390__))
 861   extern unsigned struct_user_regs_struct_sz;
 862   extern unsigned struct_user_fpregs_struct_sz;
 863   extern unsigned struct_user_fpxregs_struct_sz;
 864   extern unsigned struct_user_vfpregs_struct_sz;
 865
 866   extern int ptrace_peektext;
 867   extern int ptrace_peekdata;
 868   extern int ptrace_peekuser;
 869   extern int ptrace_getregs;
 870   extern int ptrace_setregs;
 871   extern int ptrace_getfpregs;
 872   extern int ptrace_setfpregs;
 873   extern int ptrace_getfpxregs;
 874   extern int ptrace_setfpxregs;
 875   extern int ptrace_getvfpregs;
 876   extern int ptrace_setvfpregs;
 877   extern int ptrace_getsiginfo;
 878   extern int ptrace_setsiginfo;
 879   extern int ptrace_getregset;
 880   extern int ptrace_setregset;
 881   extern int ptrace_geteventmsg;
 882 #endif
 883
 884 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 885   extern unsigned struct_shminfo_sz;
 886   extern unsigned struct_shm_info_sz;
 887   extern int shmctl_ipc_stat;
 888   extern int shmctl_ipc_info;
 889   extern int shmctl_shm_info;
 890   extern int shmctl_shm_stat;
 891 #endif
 892
 893 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
 894   extern unsigned struct_utmp_sz;
 895 #endif
 896 #if !SANITIZER_ANDROID
 897   extern unsigned struct_utmpx_sz;
 898 #endif
 899
 900   extern int map_fixed;
 901
 902   // ioctl arguments
 903   struct __sanitizer_ifconf {
 904     int ifc_len;
 905     union {
 906       void *ifcu_req;
 907     } ifc_ifcu;
 908 #if SANITIZER_MAC
 909   } __attribute__((packed));
 910 #else
 911   };
 912 #endif
 913
 914 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 915 struct __sanitizer__obstack_chunk {
 916   char *limit;
 917   struct __sanitizer__obstack_chunk *prev;
 918 };
 919
 920 struct __sanitizer_obstack {
 921   long chunk_size;
 922   struct __sanitizer__obstack_chunk *chunk;
 923   char *object_base;
 924   char *next_free;
 925   uptr more_fields[7];
 926 };
 927
 928 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
 929 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
 930                                             uptr size);
 931 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
 932                                           int whence);
 933 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
 934
 935 struct __sanitizer_cookie_io_functions_t {
 936   __sanitizer_cookie_io_read read;
 937   __sanitizer_cookie_io_write write;
 938   __sanitizer_cookie_io_seek seek;
 939   __sanitizer_cookie_io_close close;
 940 };
 941 #endif
 942
 943 #define IOC_NRBITS 8
 944 #define IOC_TYPEBITS 8
 945 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
 946     defined(__sparc__)
 947 #define IOC_SIZEBITS 13
 948 #define IOC_DIRBITS 3
 949 #define IOC_NONE 1U
 950 #define IOC_WRITE 4U
 951 #define IOC_READ 2U
 952 #else
 953 #define IOC_SIZEBITS 14
 954 #define IOC_DIRBITS 2
 955 #define IOC_NONE 0U
 956 #define IOC_WRITE 1U
 957 #define IOC_READ 2U
 958 #endif
 959 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
 960 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
 961 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
 962 #if defined(IOC_DIRMASK)
 963 #undef IOC_DIRMASK
 964 #endif
 965 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
 966 #define IOC_NRSHIFT 0
 967 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
 968 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
 969 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
 970 #define EVIOC_EV_MAX 0x1f
 971 #define EVIOC_ABS_MAX 0x3f
 972
 973 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
 974 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
 975 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
 976
 977 #if defined(__sparc__)
 978 // In sparc the 14 bits SIZE field overlaps with the
 979 // least significant bit of DIR, so either IOC_READ or
 980 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
 981 #define IOC_SIZE(nr) \
 982   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
 983 #else
 984 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
 985 #endif
 986
 987   extern unsigned struct_ifreq_sz;
 988   extern unsigned struct_termios_sz;
 989   extern unsigned struct_winsize_sz;
 990
 991 #if SANITIZER_LINUX
 992   extern unsigned struct_arpreq_sz;
 993   extern unsigned struct_cdrom_msf_sz;
 994   extern unsigned struct_cdrom_multisession_sz;
 995   extern unsigned struct_cdrom_read_audio_sz;
 996   extern unsigned struct_cdrom_subchnl_sz;
 997   extern unsigned struct_cdrom_ti_sz;
 998   extern unsigned struct_cdrom_tocentry_sz;
 999   extern unsigned struct_cdrom_tochdr_sz;
1000   extern unsigned struct_cdrom_volctrl_sz;
1001   extern unsigned struct_ff_effect_sz;
1002   extern unsigned struct_floppy_drive_params_sz;
1003   extern unsigned struct_floppy_drive_struct_sz;
1004   extern unsigned struct_floppy_fdc_state_sz;
1005   extern unsigned struct_floppy_max_errors_sz;
1006   extern unsigned struct_floppy_raw_cmd_sz;
1007   extern unsigned struct_floppy_struct_sz;
1008   extern unsigned struct_floppy_write_errors_sz;
1009   extern unsigned struct_format_descr_sz;
1010   extern unsigned struct_hd_driveid_sz;
1011   extern unsigned struct_hd_geometry_sz;
1012   extern unsigned struct_input_absinfo_sz;
1013   extern unsigned struct_input_id_sz;
1014   extern unsigned struct_mtpos_sz;
1015   extern unsigned struct_termio_sz;
1016   extern unsigned struct_vt_consize_sz;
1017   extern unsigned struct_vt_sizes_sz;
1018   extern unsigned struct_vt_stat_sz;
1019 #endif  // SANITIZER_LINUX
1020
1021 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1022   extern unsigned struct_copr_buffer_sz;
1023   extern unsigned struct_copr_debug_buf_sz;
1024   extern unsigned struct_copr_msg_sz;
1025   extern unsigned struct_midi_info_sz;
1026   extern unsigned struct_mtget_sz;
1027   extern unsigned struct_mtop_sz;
1028   extern unsigned struct_rtentry_sz;
1029   extern unsigned struct_sbi_instrument_sz;
1030   extern unsigned struct_seq_event_rec_sz;
1031   extern unsigned struct_synth_info_sz;
1032   extern unsigned struct_vt_mode_sz;
1033 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1034
1035 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1036   extern unsigned struct_ax25_parms_struct_sz;
1037   extern unsigned struct_cyclades_monitor_sz;
1038   extern unsigned struct_input_keymap_entry_sz;
1039   extern unsigned struct_ipx_config_data_sz;
1040   extern unsigned struct_kbdiacrs_sz;
1041   extern unsigned struct_kbentry_sz;
1042   extern unsigned struct_kbkeycode_sz;
1043   extern unsigned struct_kbsentry_sz;
1044   extern unsigned struct_mtconfiginfo_sz;
1045   extern unsigned struct_nr_parms_struct_sz;
1046   extern unsigned struct_scc_modem_sz;
1047   extern unsigned struct_scc_stat_sz;
1048   extern unsigned struct_serial_multiport_struct_sz;
1049   extern unsigned struct_serial_struct_sz;
1050   extern unsigned struct_sockaddr_ax25_sz;
1051   extern unsigned struct_unimapdesc_sz;
1052   extern unsigned struct_unimapinit_sz;
1053 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1054
1055 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1056   extern unsigned struct_audio_buf_info_sz;
1057   extern unsigned struct_ppp_stats_sz;
1058 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1059
1060 #if !SANITIZER_ANDROID && !SANITIZER_MAC
1061   extern unsigned struct_sioc_sg_req_sz;
1062   extern unsigned struct_sioc_vif_req_sz;
1063 #endif
1064
1065   // ioctl request identifiers
1066
1067   // A special value to mark ioctls that are not present on the target platform,
1068   // when it can not be determined without including any system headers.
1069   extern const unsigned IOCTL_NOT_PRESENT;
1070
1071   extern unsigned IOCTL_FIOASYNC;
1072   extern unsigned IOCTL_FIOCLEX;
1073   extern unsigned IOCTL_FIOGETOWN;
1074   extern unsigned IOCTL_FIONBIO;
1075   extern unsigned IOCTL_FIONCLEX;
1076   extern unsigned IOCTL_FIOSETOWN;
1077   extern unsigned IOCTL_SIOCADDMULTI;
1078   extern unsigned IOCTL_SIOCATMARK;
1079   extern unsigned IOCTL_SIOCDELMULTI;
1080   extern unsigned IOCTL_SIOCGIFADDR;
1081   extern unsigned IOCTL_SIOCGIFBRDADDR;
1082   extern unsigned IOCTL_SIOCGIFCONF;
1083   extern unsigned IOCTL_SIOCGIFDSTADDR;
1084   extern unsigned IOCTL_SIOCGIFFLAGS;
1085   extern unsigned IOCTL_SIOCGIFMETRIC;
1086   extern unsigned IOCTL_SIOCGIFMTU;
1087   extern unsigned IOCTL_SIOCGIFNETMASK;
1088   extern unsigned IOCTL_SIOCGPGRP;
1089   extern unsigned IOCTL_SIOCSIFADDR;
1090   extern unsigned IOCTL_SIOCSIFBRDADDR;
1091   extern unsigned IOCTL_SIOCSIFDSTADDR;
1092   extern unsigned IOCTL_SIOCSIFFLAGS;
1093   extern unsigned IOCTL_SIOCSIFMETRIC;
1094   extern unsigned IOCTL_SIOCSIFMTU;
1095   extern unsigned IOCTL_SIOCSIFNETMASK;
1096   extern unsigned IOCTL_SIOCSPGRP;
1097   extern unsigned IOCTL_TIOCCONS;
1098   extern unsigned IOCTL_TIOCEXCL;
1099   extern unsigned IOCTL_TIOCGETD;
1100   extern unsigned IOCTL_TIOCGPGRP;
1101   extern unsigned IOCTL_TIOCGWINSZ;
1102   extern unsigned IOCTL_TIOCMBIC;
1103   extern unsigned IOCTL_TIOCMBIS;
1104   extern unsigned IOCTL_TIOCMGET;
1105   extern unsigned IOCTL_TIOCMSET;
1106   extern unsigned IOCTL_TIOCNOTTY;
1107   extern unsigned IOCTL_TIOCNXCL;
1108   extern unsigned IOCTL_TIOCOUTQ;
1109   extern unsigned IOCTL_TIOCPKT;
1110   extern unsigned IOCTL_TIOCSCTTY;
1111   extern unsigned IOCTL_TIOCSETD;
1112   extern unsigned IOCTL_TIOCSPGRP;
1113   extern unsigned IOCTL_TIOCSTI;
1114   extern unsigned IOCTL_TIOCSWINSZ;
1115 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1116   extern unsigned IOCTL_SIOCGETSGCNT;
1117   extern unsigned IOCTL_SIOCGETVIFCNT;
1118 #endif
1119 #if SANITIZER_LINUX
1120   extern unsigned IOCTL_EVIOCGABS;
1121   extern unsigned IOCTL_EVIOCGBIT;
1122   extern unsigned IOCTL_EVIOCGEFFECTS;
1123   extern unsigned IOCTL_EVIOCGID;
1124   extern unsigned IOCTL_EVIOCGKEY;
1125   extern unsigned IOCTL_EVIOCGKEYCODE;
1126   extern unsigned IOCTL_EVIOCGLED;
1127   extern unsigned IOCTL_EVIOCGNAME;
1128   extern unsigned IOCTL_EVIOCGPHYS;
1129   extern unsigned IOCTL_EVIOCGRAB;
1130   extern unsigned IOCTL_EVIOCGREP;
1131   extern unsigned IOCTL_EVIOCGSND;
1132   extern unsigned IOCTL_EVIOCGSW;
1133   extern unsigned IOCTL_EVIOCGUNIQ;
1134   extern unsigned IOCTL_EVIOCGVERSION;
1135   extern unsigned IOCTL_EVIOCRMFF;
1136   extern unsigned IOCTL_EVIOCSABS;
1137   extern unsigned IOCTL_EVIOCSFF;
1138   extern unsigned IOCTL_EVIOCSKEYCODE;
1139   extern unsigned IOCTL_EVIOCSREP;
1140   extern unsigned IOCTL_BLKFLSBUF;
1141   extern unsigned IOCTL_BLKGETSIZE;
1142   extern unsigned IOCTL_BLKRAGET;
1143   extern unsigned IOCTL_BLKRASET;
1144   extern unsigned IOCTL_BLKROGET;
1145   extern unsigned IOCTL_BLKROSET;
1146   extern unsigned IOCTL_BLKRRPART;
1147   extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1148   extern unsigned IOCTL_CDROMEJECT;
1149   extern unsigned IOCTL_CDROMEJECT_SW;
1150   extern unsigned IOCTL_CDROMMULTISESSION;
1151   extern unsigned IOCTL_CDROMPAUSE;
1152   extern unsigned IOCTL_CDROMPLAYMSF;
1153   extern unsigned IOCTL_CDROMPLAYTRKIND;
1154   extern unsigned IOCTL_CDROMREADAUDIO;
1155   extern unsigned IOCTL_CDROMREADCOOKED;
1156   extern unsigned IOCTL_CDROMREADMODE1;
1157   extern unsigned IOCTL_CDROMREADMODE2;
1158   extern unsigned IOCTL_CDROMREADRAW;
1159   extern unsigned IOCTL_CDROMREADTOCENTRY;
1160   extern unsigned IOCTL_CDROMREADTOCHDR;
1161   extern unsigned IOCTL_CDROMRESET;
1162   extern unsigned IOCTL_CDROMRESUME;
1163   extern unsigned IOCTL_CDROMSEEK;
1164   extern unsigned IOCTL_CDROMSTART;
1165   extern unsigned IOCTL_CDROMSTOP;
1166   extern unsigned IOCTL_CDROMSUBCHNL;
1167   extern unsigned IOCTL_CDROMVOLCTRL;
1168   extern unsigned IOCTL_CDROMVOLREAD;
1169   extern unsigned IOCTL_CDROM_GET_UPC;
1170   extern unsigned IOCTL_FDCLRPRM;
1171   extern unsigned IOCTL_FDDEFPRM;
1172   extern unsigned IOCTL_FDFLUSH;
1173   extern unsigned IOCTL_FDFMTBEG;
1174   extern unsigned IOCTL_FDFMTEND;
1175   extern unsigned IOCTL_FDFMTTRK;
1176   extern unsigned IOCTL_FDGETDRVPRM;
1177   extern unsigned IOCTL_FDGETDRVSTAT;
1178   extern unsigned IOCTL_FDGETDRVTYP;
1179   extern unsigned IOCTL_FDGETFDCSTAT;
1180   extern unsigned IOCTL_FDGETMAXERRS;
1181   extern unsigned IOCTL_FDGETPRM;
1182   extern unsigned IOCTL_FDMSGOFF;
1183   extern unsigned IOCTL_FDMSGON;
1184   extern unsigned IOCTL_FDPOLLDRVSTAT;
1185   extern unsigned IOCTL_FDRAWCMD;
1186   extern unsigned IOCTL_FDRESET;
1187   extern unsigned IOCTL_FDSETDRVPRM;
1188   extern unsigned IOCTL_FDSETEMSGTRESH;
1189   extern unsigned IOCTL_FDSETMAXERRS;
1190   extern unsigned IOCTL_FDSETPRM;
1191   extern unsigned IOCTL_FDTWADDLE;
1192   extern unsigned IOCTL_FDWERRORCLR;
1193   extern unsigned IOCTL_FDWERRORGET;
1194   extern unsigned IOCTL_HDIO_DRIVE_CMD;
1195   extern unsigned IOCTL_HDIO_GETGEO;
1196   extern unsigned IOCTL_HDIO_GET_32BIT;
1197   extern unsigned IOCTL_HDIO_GET_DMA;
1198   extern unsigned IOCTL_HDIO_GET_IDENTITY;
1199   extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1200   extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1201   extern unsigned IOCTL_HDIO_GET_NOWERR;
1202   extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1203   extern unsigned IOCTL_HDIO_SET_32BIT;
1204   extern unsigned IOCTL_HDIO_SET_DMA;
1205   extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1206   extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1207   extern unsigned IOCTL_HDIO_SET_NOWERR;
1208   extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1209   extern unsigned IOCTL_MTIOCPOS;
1210   extern unsigned IOCTL_PPPIOCGASYNCMAP;
1211   extern unsigned IOCTL_PPPIOCGDEBUG;
1212   extern unsigned IOCTL_PPPIOCGFLAGS;
1213   extern unsigned IOCTL_PPPIOCGUNIT;
1214   extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1215   extern unsigned IOCTL_PPPIOCSASYNCMAP;
1216   extern unsigned IOCTL_PPPIOCSDEBUG;
1217   extern unsigned IOCTL_PPPIOCSFLAGS;
1218   extern unsigned IOCTL_PPPIOCSMAXCID;
1219   extern unsigned IOCTL_PPPIOCSMRU;
1220   extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1221   extern unsigned IOCTL_SIOCDARP;
1222   extern unsigned IOCTL_SIOCDRARP;
1223   extern unsigned IOCTL_SIOCGARP;
1224   extern unsigned IOCTL_SIOCGIFENCAP;
1225   extern unsigned IOCTL_SIOCGIFHWADDR;
1226   extern unsigned IOCTL_SIOCGIFMAP;
1227   extern unsigned IOCTL_SIOCGIFMEM;
1228   extern unsigned IOCTL_SIOCGIFNAME;
1229   extern unsigned IOCTL_SIOCGIFSLAVE;
1230   extern unsigned IOCTL_SIOCGRARP;
1231   extern unsigned IOCTL_SIOCGSTAMP;
1232   extern unsigned IOCTL_SIOCSARP;
1233   extern unsigned IOCTL_SIOCSIFENCAP;
1234   extern unsigned IOCTL_SIOCSIFHWADDR;
1235   extern unsigned IOCTL_SIOCSIFLINK;
1236   extern unsigned IOCTL_SIOCSIFMAP;
1237   extern unsigned IOCTL_SIOCSIFMEM;
1238   extern unsigned IOCTL_SIOCSIFSLAVE;
1239   extern unsigned IOCTL_SIOCSRARP;
1240   extern unsigned IOCTL_SNDCTL_COPR_HALT;
1241   extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1242   extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1243   extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1244   extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1245   extern unsigned IOCTL_SNDCTL_COPR_RESET;
1246   extern unsigned IOCTL_SNDCTL_COPR_RUN;
1247   extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1248   extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1249   extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1250   extern unsigned IOCTL_TCFLSH;
1251   extern unsigned IOCTL_TCGETA;
1252   extern unsigned IOCTL_TCGETS;
1253   extern unsigned IOCTL_TCSBRK;
1254   extern unsigned IOCTL_TCSBRKP;
1255   extern unsigned IOCTL_TCSETA;
1256   extern unsigned IOCTL_TCSETAF;
1257   extern unsigned IOCTL_TCSETAW;
1258   extern unsigned IOCTL_TCSETS;
1259   extern unsigned IOCTL_TCSETSF;
1260   extern unsigned IOCTL_TCSETSW;
1261   extern unsigned IOCTL_TCXONC;
1262   extern unsigned IOCTL_TIOCGLCKTRMIOS;
1263   extern unsigned IOCTL_TIOCGSOFTCAR;
1264   extern unsigned IOCTL_TIOCINQ;
1265   extern unsigned IOCTL_TIOCLINUX;
1266   extern unsigned IOCTL_TIOCSERCONFIG;
1267   extern unsigned IOCTL_TIOCSERGETLSR;
1268   extern unsigned IOCTL_TIOCSERGWILD;
1269   extern unsigned IOCTL_TIOCSERSWILD;
1270   extern unsigned IOCTL_TIOCSLCKTRMIOS;
1271   extern unsigned IOCTL_TIOCSSOFTCAR;
1272   extern unsigned IOCTL_VT_DISALLOCATE;
1273   extern unsigned IOCTL_VT_GETSTATE;
1274   extern unsigned IOCTL_VT_RESIZE;
1275   extern unsigned IOCTL_VT_RESIZEX;
1276   extern unsigned IOCTL_VT_SENDSIG;
1277 #endif  // SANITIZER_LINUX
1278 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1279   extern unsigned IOCTL_MTIOCGET;
1280   extern unsigned IOCTL_MTIOCTOP;
1281   extern unsigned IOCTL_SIOCADDRT;
1282   extern unsigned IOCTL_SIOCDELRT;
1283   extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1284   extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1285   extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1286   extern unsigned IOCTL_SNDCTL_DSP_POST;
1287   extern unsigned IOCTL_SNDCTL_DSP_RESET;
1288   extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1289   extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1290   extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1291   extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1292   extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1293   extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1294   extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1295   extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1296   extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1297   extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1298   extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1299   extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1300   extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1301   extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1302   extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1303   extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1304   extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1305   extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1306   extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1307   extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1308   extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1309   extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1310   extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1311   extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1312   extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1313   extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1314   extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1315   extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1316   extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1317   extern unsigned IOCTL_SNDCTL_TMR_START;
1318   extern unsigned IOCTL_SNDCTL_TMR_STOP;
1319   extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1320   extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1321   extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1322   extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1323   extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1324   extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1325   extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1326   extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1327   extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1328   extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1329   extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1330   extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1331   extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1332   extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1333   extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1334   extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1335   extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1336   extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1337   extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1338   extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1339   extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1340   extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1341   extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1342   extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1343   extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1344   extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1345   extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1346   extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1347   extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1348   extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1349   extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1350   extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1351   extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1352   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1353   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1354   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1355   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1356   extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1357   extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1358   extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1359   extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1360   extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1361   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1362   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1363   extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1364   extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1365   extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1366   extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1367   extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1368   extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1369   extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1370   extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1371   extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1372   extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1373   extern unsigned IOCTL_VT_ACTIVATE;
1374   extern unsigned IOCTL_VT_GETMODE;
1375   extern unsigned IOCTL_VT_OPENQRY;
1376   extern unsigned IOCTL_VT_RELDISP;
1377   extern unsigned IOCTL_VT_SETMODE;
1378   extern unsigned IOCTL_VT_WAITACTIVE;
1379 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
1380
1381 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1382   extern unsigned IOCTL_CYGETDEFTHRESH;
1383   extern unsigned IOCTL_CYGETDEFTIMEOUT;
1384   extern unsigned IOCTL_CYGETMON;
1385   extern unsigned IOCTL_CYGETTHRESH;
1386   extern unsigned IOCTL_CYGETTIMEOUT;
1387   extern unsigned IOCTL_CYSETDEFTHRESH;
1388   extern unsigned IOCTL_CYSETDEFTIMEOUT;
1389   extern unsigned IOCTL_CYSETTHRESH;
1390   extern unsigned IOCTL_CYSETTIMEOUT;
1391   extern unsigned IOCTL_EQL_EMANCIPATE;
1392   extern unsigned IOCTL_EQL_ENSLAVE;
1393   extern unsigned IOCTL_EQL_GETMASTRCFG;
1394   extern unsigned IOCTL_EQL_GETSLAVECFG;
1395   extern unsigned IOCTL_EQL_SETMASTRCFG;
1396   extern unsigned IOCTL_EQL_SETSLAVECFG;
1397   extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1398   extern unsigned IOCTL_EVIOCGPROP;
1399   extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1400   extern unsigned IOCTL_FS_IOC_GETFLAGS;
1401   extern unsigned IOCTL_FS_IOC_GETVERSION;
1402   extern unsigned IOCTL_FS_IOC_SETFLAGS;
1403   extern unsigned IOCTL_FS_IOC_SETVERSION;
1404   extern unsigned IOCTL_GIO_CMAP;
1405   extern unsigned IOCTL_GIO_FONT;
1406   extern unsigned IOCTL_GIO_UNIMAP;
1407   extern unsigned IOCTL_GIO_UNISCRNMAP;
1408   extern unsigned IOCTL_KDADDIO;
1409   extern unsigned IOCTL_KDDELIO;
1410   extern unsigned IOCTL_KDGETKEYCODE;
1411   extern unsigned IOCTL_KDGKBDIACR;
1412   extern unsigned IOCTL_KDGKBENT;
1413   extern unsigned IOCTL_KDGKBLED;
1414   extern unsigned IOCTL_KDGKBMETA;
1415   extern unsigned IOCTL_KDGKBSENT;
1416   extern unsigned IOCTL_KDMAPDISP;
1417   extern unsigned IOCTL_KDSETKEYCODE;
1418   extern unsigned IOCTL_KDSIGACCEPT;
1419   extern unsigned IOCTL_KDSKBDIACR;
1420   extern unsigned IOCTL_KDSKBENT;
1421   extern unsigned IOCTL_KDSKBLED;
1422   extern unsigned IOCTL_KDSKBMETA;
1423   extern unsigned IOCTL_KDSKBSENT;
1424   extern unsigned IOCTL_KDUNMAPDISP;
1425   extern unsigned IOCTL_LPABORT;
1426   extern unsigned IOCTL_LPABORTOPEN;
1427   extern unsigned IOCTL_LPCAREFUL;
1428   extern unsigned IOCTL_LPCHAR;
1429   extern unsigned IOCTL_LPGETIRQ;
1430   extern unsigned IOCTL_LPGETSTATUS;
1431   extern unsigned IOCTL_LPRESET;
1432   extern unsigned IOCTL_LPSETIRQ;
1433   extern unsigned IOCTL_LPTIME;
1434   extern unsigned IOCTL_LPWAIT;
1435   extern unsigned IOCTL_MTIOCGETCONFIG;
1436   extern unsigned IOCTL_MTIOCSETCONFIG;
1437   extern unsigned IOCTL_PIO_CMAP;
1438   extern unsigned IOCTL_PIO_FONT;
1439   extern unsigned IOCTL_PIO_UNIMAP;
1440   extern unsigned IOCTL_PIO_UNIMAPCLR;
1441   extern unsigned IOCTL_PIO_UNISCRNMAP;
1442   extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1443   extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1444   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1445   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1446   extern unsigned IOCTL_SIOCAIPXITFCRT;
1447   extern unsigned IOCTL_SIOCAIPXPRISLT;
1448   extern unsigned IOCTL_SIOCAX25ADDUID;
1449   extern unsigned IOCTL_SIOCAX25DELUID;
1450   extern unsigned IOCTL_SIOCAX25GETPARMS;
1451   extern unsigned IOCTL_SIOCAX25GETUID;
1452   extern unsigned IOCTL_SIOCAX25NOUID;
1453   extern unsigned IOCTL_SIOCAX25SETPARMS;
1454   extern unsigned IOCTL_SIOCDEVPLIP;
1455   extern unsigned IOCTL_SIOCIPXCFGDATA;
1456   extern unsigned IOCTL_SIOCNRDECOBS;
1457   extern unsigned IOCTL_SIOCNRGETPARMS;
1458   extern unsigned IOCTL_SIOCNRRTCTL;
1459   extern unsigned IOCTL_SIOCNRSETPARMS;
1460   extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1461   extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1462   extern unsigned IOCTL_TIOCGSERIAL;
1463   extern unsigned IOCTL_TIOCSERGETMULTI;
1464   extern unsigned IOCTL_TIOCSERSETMULTI;
1465   extern unsigned IOCTL_TIOCSSERIAL;
1466 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1467
1468 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1469   extern unsigned IOCTL_GIO_SCRNMAP;
1470   extern unsigned IOCTL_KDDISABIO;
1471   extern unsigned IOCTL_KDENABIO;
1472   extern unsigned IOCTL_KDGETLED;
1473   extern unsigned IOCTL_KDGETMODE;
1474   extern unsigned IOCTL_KDGKBMODE;
1475   extern unsigned IOCTL_KDGKBTYPE;
1476   extern unsigned IOCTL_KDMKTONE;
1477   extern unsigned IOCTL_KDSETLED;
1478   extern unsigned IOCTL_KDSETMODE;
1479   extern unsigned IOCTL_KDSKBMODE;
1480   extern unsigned IOCTL_KIOCSOUND;
1481   extern unsigned IOCTL_PIO_SCRNMAP;
1482 #endif
1483
1484   extern const int si_SEGV_MAPERR;
1485   extern const int si_SEGV_ACCERR;
1486 }  // namespace __sanitizer
1487
1488 #define CHECK_TYPE_SIZE(TYPE) \
1489   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1490
1491 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1492   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
1493                  sizeof(((CLASS *) NULL)->MEMBER));                \
1494   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
1495                  offsetof(CLASS, MEMBER))
1496
1497 // For sigaction, which is a function and struct at the same time,
1498 // and thus requires explicit "struct" in sizeof() expression.
1499 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1500   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
1501                  sizeof(((struct CLASS *) NULL)->MEMBER));                \
1502   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==          \
1503                  offsetof(struct CLASS, MEMBER))
1504
1505 #define SIGACTION_SYMNAME sigaction
1506
1507 #endif  // SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
1508
1509 #endif