libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h

   1 //===-- sanitizer_platform_limits_posix.h ---------------------------------===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of Sanitizer common code.
   9 //
  10 // Sizes and layouts of platform-specific POSIX data structures.
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
  14 #define SANITIZER_PLATFORM_LIMITS_POSIX_H
  15
  16 #if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
  17
  18 #include "sanitizer_internal_defs.h"
  19 #include "sanitizer_platform.h"
  20
  21 #if SANITIZER_FREEBSD
  22 // FreeBSD's dlopen() returns a pointer to an Obj_Entry structure that
  23 // incorporates the map structure.
  24 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) \
  25     ((link_map*)((handle) == nullptr ? nullptr : ((char*)(handle) + 560)))
  26 // Get sys/_types.h, because that tells us whether 64-bit inodes are
  27 // used in struct dirent below.
  28 #include <sys/_types.h>
  29 #else
  30 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
  31 #endif  // !SANITIZER_FREEBSD
  32
  33 #ifndef __GLIBC_PREREQ
  34 #define __GLIBC_PREREQ(x, y) 0
  35 #endif
  36
  37 namespace __sanitizer {
  38   extern unsigned struct_utsname_sz;
  39   extern unsigned struct_stat_sz;
  40 #if !SANITIZER_FREEBSD && !SANITIZER_IOS
  41   extern unsigned struct_stat64_sz;
  42 #endif
  43   extern unsigned struct_rusage_sz;
  44   extern unsigned siginfo_t_sz;
  45   extern unsigned struct_itimerval_sz;
  46   extern unsigned pthread_t_sz;
  47   extern unsigned pthread_mutex_t_sz;
  48   extern unsigned pthread_cond_t_sz;
  49   extern unsigned pid_t_sz;
  50   extern unsigned timeval_sz;
  51   extern unsigned uid_t_sz;
  52   extern unsigned gid_t_sz;
  53   extern unsigned mbstate_t_sz;
  54   extern unsigned struct_timezone_sz;
  55   extern unsigned struct_tms_sz;
  56   extern unsigned struct_itimerspec_sz;
  57   extern unsigned struct_sigevent_sz;
  58   extern unsigned struct_sched_param_sz;
  59   extern unsigned struct_statfs64_sz;
  60
  61 #if !SANITIZER_ANDROID
  62   extern unsigned struct_statfs_sz;
  63   extern unsigned struct_sockaddr_sz;
  64   extern unsigned ucontext_t_sz;
  65 #endif // !SANITIZER_ANDROID
  66
  67 #if SANITIZER_LINUX
  68
  69 #if defined(__x86_64__)
  70   const unsigned struct_kernel_stat_sz = 144;
  71   const unsigned struct_kernel_stat64_sz = 0;
  72 #elif defined(__i386__)
  73   const unsigned struct_kernel_stat_sz = 64;
  74   const unsigned struct_kernel_stat64_sz = 96;
  75 #elif defined(__arm__)
  76   const unsigned struct_kernel_stat_sz = 64;
  77   const unsigned struct_kernel_stat64_sz = 104;
  78 #elif defined(__aarch64__)
  79   const unsigned struct_kernel_stat_sz = 128;
  80   const unsigned struct_kernel_stat64_sz = 104;
  81 #elif defined(__powerpc__) && !defined(__powerpc64__)
  82   const unsigned struct_kernel_stat_sz = 72;
  83   const unsigned struct_kernel_stat64_sz = 104;
  84 #elif defined(__powerpc64__)
  85   const unsigned struct_kernel_stat_sz = 144;
  86   const unsigned struct_kernel_stat64_sz = 104;
  87 #elif defined(__mips__)
  88   const unsigned struct_kernel_stat_sz =
  89                  SANITIZER_ANDROID ? FIRST_32_SECOND_64(104, 128) :
  90                                      FIRST_32_SECOND_64(160, 216);
  91   const unsigned struct_kernel_stat64_sz = 104;
  92 #elif defined(__s390__) && !defined(__s390x__)
  93   const unsigned struct_kernel_stat_sz = 64;
  94   const unsigned struct_kernel_stat64_sz = 104;
  95 #elif defined(__s390x__)
  96   const unsigned struct_kernel_stat_sz = 144;
  97   const unsigned struct_kernel_stat64_sz = 0;
  98 #elif defined(__sparc__) && defined(__arch64__)
  99   const unsigned struct___old_kernel_stat_sz = 0;
 100   const unsigned struct_kernel_stat_sz = 104;
 101   const unsigned struct_kernel_stat64_sz = 144;
 102 #elif defined(__sparc__) && !defined(__arch64__)
 103   const unsigned struct___old_kernel_stat_sz = 0;
 104   const unsigned struct_kernel_stat_sz = 64;
 105   const unsigned struct_kernel_stat64_sz = 104;
 106 #endif
 107   struct __sanitizer_perf_event_attr {
 108     unsigned type;
 109     unsigned size;
 110     // More fields that vary with the kernel version.
 111   };
 112
 113   extern unsigned struct_epoll_event_sz;
 114   extern unsigned struct_sysinfo_sz;
 115   extern unsigned __user_cap_header_struct_sz;
 116   extern unsigned __user_cap_data_struct_sz;
 117   extern unsigned struct_new_utsname_sz;
 118   extern unsigned struct_old_utsname_sz;
 119   extern unsigned struct_oldold_utsname_sz;
 120
 121   const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
 122 #endif  // SANITIZER_LINUX
 123
 124 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 125
 126 #if defined(__powerpc64__) || defined(__s390__)
 127   const unsigned struct___old_kernel_stat_sz = 0;
 128 #elif !defined(__sparc__)
 129   const unsigned struct___old_kernel_stat_sz = 32;
 130 #endif
 131
 132   extern unsigned struct_rlimit_sz;
 133   extern unsigned struct_utimbuf_sz;
 134   extern unsigned struct_timespec_sz;
 135
 136   struct __sanitizer_iocb {
 137     u64   aio_data;
 138     u32   aio_key_or_aio_reserved1; // Simply crazy.
 139     u32   aio_reserved1_or_aio_key; // Luckily, we don't need these.
 140     u16   aio_lio_opcode;
 141     s16   aio_reqprio;
 142     u32   aio_fildes;
 143     u64   aio_buf;
 144     u64   aio_nbytes;
 145     s64   aio_offset;
 146     u64   aio_reserved2;
 147     u64   aio_reserved3;
 148   };
 149
 150   struct __sanitizer_io_event {
 151     u64 data;
 152     u64 obj;
 153     u64 res;
 154     u64 res2;
 155   };
 156
 157   const unsigned iocb_cmd_pread = 0;
 158   const unsigned iocb_cmd_pwrite = 1;
 159   const unsigned iocb_cmd_preadv = 7;
 160   const unsigned iocb_cmd_pwritev = 8;
 161
 162   struct __sanitizer___sysctl_args {
 163     int *name;
 164     int nlen;
 165     void *oldval;
 166     uptr *oldlenp;
 167     void *newval;
 168     uptr newlen;
 169     unsigned long ___unused[4];
 170   };
 171
 172   const unsigned old_sigset_t_sz = sizeof(unsigned long);
 173
 174   struct __sanitizer_sem_t {
 175 #if SANITIZER_ANDROID && defined(_LP64)
 176     int data[4];
 177 #elif SANITIZER_ANDROID && !defined(_LP64)
 178     int data;
 179 #elif SANITIZER_LINUX
 180     uptr data[4];
 181 #elif SANITIZER_FREEBSD
 182     u32 data[4];
 183 #endif
 184   };
 185 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 186
 187 #if SANITIZER_ANDROID
 188   struct __sanitizer_struct_mallinfo {
 189     uptr v[10];
 190   };
 191 #endif
 192
 193 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 194   struct __sanitizer_struct_mallinfo {
 195     int v[10];
 196   };
 197
 198   extern unsigned struct_ustat_sz;
 199   extern unsigned struct_rlimit64_sz;
 200   extern unsigned struct_statvfs64_sz;
 201
 202   struct __sanitizer_ipc_perm {
 203     int __key;
 204     int uid;
 205     int gid;
 206     int cuid;
 207     int cgid;
 208 #ifdef __powerpc__
 209     unsigned mode;
 210     unsigned __seq;
 211     u64 __unused1;
 212     u64 __unused2;
 213 #elif defined(__sparc__)
 214 #if defined(__arch64__)
 215     unsigned mode;
 216     unsigned short __pad1;
 217 #else
 218     unsigned short __pad1;
 219     unsigned short mode;
 220     unsigned short __pad2;
 221 #endif
 222     unsigned short __seq;
 223     unsigned long long __unused1;
 224     unsigned long long __unused2;
 225 #elif defined(__mips__) || defined(__aarch64__) || defined(__s390x__)
 226     unsigned int mode;
 227     unsigned short __seq;
 228     unsigned short __pad1;
 229     unsigned long __unused1;
 230     unsigned long __unused2;
 231 #else
 232     unsigned short mode;
 233     unsigned short __pad1;
 234     unsigned short __seq;
 235     unsigned short __pad2;
 236 #if defined(__x86_64__) && !defined(_LP64)
 237     u64 __unused1;
 238     u64 __unused2;
 239 #else
 240     unsigned long __unused1;
 241     unsigned long __unused2;
 242 #endif
 243 #endif
 244   };
 245
 246   struct __sanitizer_shmid_ds {
 247     __sanitizer_ipc_perm shm_perm;
 248   #if defined(__sparc__)
 249   #if !defined(__arch64__)
 250     u32 __pad1;
 251   #endif
 252     long shm_atime;
 253   #if !defined(__arch64__)
 254     u32 __pad2;
 255   #endif
 256     long shm_dtime;
 257   #if !defined(__arch64__)
 258     u32 __pad3;
 259   #endif
 260     long shm_ctime;
 261     uptr shm_segsz;
 262     int shm_cpid;
 263     int shm_lpid;
 264     unsigned long shm_nattch;
 265     unsigned long __glibc_reserved1;
 266     unsigned long __glibc_reserved2;
 267   #else
 268   #ifndef __powerpc__
 269     uptr shm_segsz;
 270   #elif !defined(__powerpc64__)
 271     uptr __unused0;
 272   #endif
 273   #if defined(__x86_64__) && !defined(_LP64)
 274     u64 shm_atime;
 275     u64 shm_dtime;
 276     u64 shm_ctime;
 277   #else
 278     uptr shm_atime;
 279   #if !defined(_LP64) && !defined(__mips__)
 280     uptr __unused1;
 281   #endif
 282     uptr shm_dtime;
 283   #if !defined(_LP64) && !defined(__mips__)
 284     uptr __unused2;
 285   #endif
 286     uptr shm_ctime;
 287   #if !defined(_LP64) && !defined(__mips__)
 288     uptr __unused3;
 289   #endif
 290   #endif
 291   #ifdef __powerpc__
 292     uptr shm_segsz;
 293   #endif
 294     int shm_cpid;
 295     int shm_lpid;
 296   #if defined(__x86_64__) && !defined(_LP64)
 297     u64 shm_nattch;
 298     u64 __unused4;
 299     u64 __unused5;
 300   #else
 301     uptr shm_nattch;
 302     uptr __unused4;
 303     uptr __unused5;
 304   #endif
 305 #endif
 306   };
 307 #elif SANITIZER_FREEBSD
 308   struct __sanitizer_ipc_perm {
 309     unsigned int cuid;
 310     unsigned int cgid;
 311     unsigned int uid;
 312     unsigned int gid;
 313     unsigned short mode;
 314     unsigned short seq;
 315     long key;
 316   };
 317
 318   struct __sanitizer_shmid_ds {
 319     __sanitizer_ipc_perm shm_perm;
 320     unsigned long shm_segsz;
 321     unsigned int shm_lpid;
 322     unsigned int shm_cpid;
 323     int shm_nattch;
 324     unsigned long shm_atime;
 325     unsigned long shm_dtime;
 326     unsigned long shm_ctime;
 327   };
 328 #endif
 329
 330 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 331   extern unsigned struct_msqid_ds_sz;
 332   extern unsigned struct_mq_attr_sz;
 333   extern unsigned struct_timex_sz;
 334   extern unsigned struct_statvfs_sz;
 335 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 336
 337   struct __sanitizer_iovec {
 338     void *iov_base;
 339     uptr iov_len;
 340   };
 341
 342 #if !SANITIZER_ANDROID
 343   struct __sanitizer_ifaddrs {
 344     struct __sanitizer_ifaddrs *ifa_next;
 345     char *ifa_name;
 346     unsigned int ifa_flags;
 347     void *ifa_addr;    // (struct sockaddr *)
 348     void *ifa_netmask; // (struct sockaddr *)
 349     // This is a union on Linux.
 350 # ifdef ifa_dstaddr
 351 # undef ifa_dstaddr
 352 # endif
 353     void *ifa_dstaddr; // (struct sockaddr *)
 354     void *ifa_data;
 355   };
 356 #endif  // !SANITIZER_ANDROID
 357
 358 #if SANITIZER_MAC
 359   typedef unsigned long __sanitizer_pthread_key_t;
 360 #else
 361   typedef unsigned __sanitizer_pthread_key_t;
 362 #endif
 363
 364 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 365
 366   struct __sanitizer_XDR {
 367     int x_op;
 368     void *x_ops;
 369     uptr x_public;
 370     uptr x_private;
 371     uptr x_base;
 372     unsigned x_handy;
 373   };
 374
 375   const int __sanitizer_XDR_ENCODE = 0;
 376   const int __sanitizer_XDR_DECODE = 1;
 377   const int __sanitizer_XDR_FREE = 2;
 378 #endif
 379
 380   struct __sanitizer_passwd {
 381     char *pw_name;
 382     char *pw_passwd;
 383     int pw_uid;
 384     int pw_gid;
 385 #if SANITIZER_MAC || SANITIZER_FREEBSD
 386     long pw_change;
 387     char *pw_class;
 388 #endif
 389 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
 390     char *pw_gecos;
 391 #endif
 392     char *pw_dir;
 393     char *pw_shell;
 394 #if SANITIZER_MAC || SANITIZER_FREEBSD
 395     long pw_expire;
 396 #endif
 397 #if SANITIZER_FREEBSD
 398     int pw_fields;
 399 #endif
 400   };
 401
 402   struct __sanitizer_group {
 403     char *gr_name;
 404     char *gr_passwd;
 405     int gr_gid;
 406     char **gr_mem;
 407   };
 408
 409 #if defined(__x86_64__) && !defined(_LP64)
 410   typedef long long __sanitizer_time_t;
 411 #else
 412   typedef long __sanitizer_time_t;
 413 #endif
 414
 415   typedef long __sanitizer_suseconds_t;
 416
 417   struct __sanitizer_timeval {
 418     __sanitizer_time_t tv_sec;
 419     __sanitizer_suseconds_t tv_usec;
 420   };
 421
 422   struct __sanitizer_itimerval {
 423     struct __sanitizer_timeval it_interval;
 424     struct __sanitizer_timeval it_value;
 425   };
 426
 427   struct __sanitizer_timeb {
 428     __sanitizer_time_t time;
 429     unsigned short millitm;
 430     short timezone;
 431     short dstflag;
 432   };
 433
 434   struct __sanitizer_ether_addr {
 435     u8 octet[6];
 436   };
 437
 438   struct __sanitizer_tm {
 439     int tm_sec;
 440     int tm_min;
 441     int tm_hour;
 442     int tm_mday;
 443     int tm_mon;
 444     int tm_year;
 445     int tm_wday;
 446     int tm_yday;
 447     int tm_isdst;
 448     long int tm_gmtoff;
 449     const char *tm_zone;
 450   };
 451
 452 #if SANITIZER_LINUX
 453   struct __sanitizer_mntent {
 454     char *mnt_fsname;
 455     char *mnt_dir;
 456     char *mnt_type;
 457     char *mnt_opts;
 458     int mnt_freq;
 459     int mnt_passno;
 460   };
 461
 462   struct __sanitizer_file_handle {
 463     unsigned int handle_bytes;
 464     int handle_type;
 465     unsigned char f_handle[1];  // variable sized
 466   };
 467 #endif
 468
 469 #if SANITIZER_MAC || SANITIZER_FREEBSD
 470   struct __sanitizer_msghdr {
 471     void *msg_name;
 472     unsigned msg_namelen;
 473     struct __sanitizer_iovec *msg_iov;
 474     unsigned msg_iovlen;
 475     void *msg_control;
 476     unsigned msg_controllen;
 477     int msg_flags;
 478   };
 479   struct __sanitizer_cmsghdr {
 480     unsigned cmsg_len;
 481     int cmsg_level;
 482     int cmsg_type;
 483   };
 484 #else
 485   struct __sanitizer_msghdr {
 486     void *msg_name;
 487     unsigned msg_namelen;
 488     struct __sanitizer_iovec *msg_iov;
 489     uptr msg_iovlen;
 490     void *msg_control;
 491     uptr msg_controllen;
 492     int msg_flags;
 493   };
 494   struct __sanitizer_cmsghdr {
 495     uptr cmsg_len;
 496     int cmsg_level;
 497     int cmsg_type;
 498   };
 499 #endif
 500
 501 #if SANITIZER_LINUX
 502   struct __sanitizer_mmsghdr {
 503     __sanitizer_msghdr msg_hdr;
 504     unsigned int msg_len;
 505   };
 506 #endif
 507
 508 #if SANITIZER_MAC
 509   struct __sanitizer_dirent {
 510     unsigned long long d_ino;
 511     unsigned long long d_seekoff;
 512     unsigned short d_reclen;
 513     // more fields that we don't care about
 514   };
 515 #elif SANITIZER_FREEBSD
 516   struct __sanitizer_dirent {
 517 #if defined(__INO64)
 518     unsigned long long d_fileno;
 519     unsigned long long d_off;
 520 #else
 521     unsigned int d_fileno;
 522 #endif
 523     unsigned short d_reclen;
 524     // more fields that we don't care about
 525   };
 526 #elif SANITIZER_ANDROID || defined(__x86_64__)
 527   struct __sanitizer_dirent {
 528     unsigned long long d_ino;
 529     unsigned long long d_off;
 530     unsigned short d_reclen;
 531     // more fields that we don't care about
 532   };
 533 #else
 534   struct __sanitizer_dirent {
 535     uptr d_ino;
 536     uptr d_off;
 537     unsigned short d_reclen;
 538     // more fields that we don't care about
 539   };
 540 #endif
 541
 542 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 543   struct __sanitizer_dirent64 {
 544     unsigned long long d_ino;
 545     unsigned long long d_off;
 546     unsigned short d_reclen;
 547     // more fields that we don't care about
 548   };
 549 #endif
 550
 551 // 'clock_t' is 32 bits wide on x64 FreeBSD
 552 #if SANITIZER_FREEBSD
 553   typedef int __sanitizer_clock_t;
 554 #elif defined(__x86_64__) && !defined(_LP64)
 555   typedef long long __sanitizer_clock_t;
 556 #else
 557   typedef long __sanitizer_clock_t;
 558 #endif
 559
 560 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 561   typedef int __sanitizer_clockid_t;
 562 #endif
 563
 564 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 565 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)\
 566                    || defined(__mips__)
 567   typedef unsigned __sanitizer___kernel_uid_t;
 568   typedef unsigned __sanitizer___kernel_gid_t;
 569 #else
 570   typedef unsigned short __sanitizer___kernel_uid_t;
 571   typedef unsigned short __sanitizer___kernel_gid_t;
 572 #endif
 573 #if defined(__x86_64__) && !defined(_LP64)
 574   typedef long long __sanitizer___kernel_off_t;
 575 #else
 576   typedef long __sanitizer___kernel_off_t;
 577 #endif
 578
 579 #if defined(__powerpc__) || defined(__mips__)
 580   typedef unsigned int __sanitizer___kernel_old_uid_t;
 581   typedef unsigned int __sanitizer___kernel_old_gid_t;
 582 #else
 583   typedef unsigned short __sanitizer___kernel_old_uid_t;
 584   typedef unsigned short __sanitizer___kernel_old_gid_t;
 585 #endif
 586
 587   typedef long long __sanitizer___kernel_loff_t;
 588   typedef struct {
 589     unsigned long fds_bits[1024 / (8 * sizeof(long))];
 590   } __sanitizer___kernel_fd_set;
 591 #endif
 592
 593   // This thing depends on the platform. We are only interested in the upper
 594   // limit. Verified with a compiler assert in .cc.
 595   const int pthread_attr_t_max_sz = 128;
 596   union __sanitizer_pthread_attr_t {
 597     char size[pthread_attr_t_max_sz]; // NOLINT
 598     void *align;
 599   };
 600
 601 #if SANITIZER_ANDROID
 602 # if SANITIZER_MIPS
 603   typedef unsigned long __sanitizer_sigset_t[16/sizeof(unsigned long)];
 604 # else
 605   typedef unsigned long __sanitizer_sigset_t;
 606 # endif
 607 #elif SANITIZER_MAC
 608   typedef unsigned __sanitizer_sigset_t;
 609 #elif SANITIZER_LINUX
 610   struct __sanitizer_sigset_t {
 611     // The size is determined by looking at sizeof of real sigset_t on linux.
 612     uptr val[128 / sizeof(uptr)];
 613   };
 614 #elif SANITIZER_FREEBSD
 615   struct __sanitizer_sigset_t {
 616      // uint32_t * 4
 617      unsigned int __bits[4];
 618   };
 619 #endif
 620
 621   struct __sanitizer_siginfo {
 622     // The size is determined by looking at sizeof of real siginfo_t on linux.
 623     u64 opaque[128 / sizeof(u64)];
 624   };
 625
 626   using __sanitizer_sighandler_ptr = void (*)(int sig);
 627   using __sanitizer_sigactionhandler_ptr =
 628       void (*)(int sig, __sanitizer_siginfo *siginfo, void *uctx);
 629
 630   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 631 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
 632   struct __sanitizer_sigaction {
 633     unsigned sa_flags;
 634     union {
 635       __sanitizer_sigactionhandler_ptr sigaction;
 636       __sanitizer_sighandler_ptr handler;
 637     };
 638     __sanitizer_sigset_t sa_mask;
 639     void (*sa_restorer)();
 640   };
 641 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
 642   struct __sanitizer_sigaction {
 643     unsigned sa_flags;
 644     union {
 645       __sanitizer_sigactionhandler_ptr sigaction;
 646       __sanitizer_sighandler_ptr handler;
 647     };
 648     __sanitizer_sigset_t sa_mask;
 649   };
 650 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
 651   struct __sanitizer_sigaction {
 652     union {
 653       __sanitizer_sigactionhandler_ptr sigaction;
 654       __sanitizer_sighandler_ptr handler;
 655     };
 656     __sanitizer_sigset_t sa_mask;
 657     uptr sa_flags;
 658     void (*sa_restorer)();
 659   };
 660 #else // !SANITIZER_ANDROID
 661   struct __sanitizer_sigaction {
 662 #if defined(__mips__) && !SANITIZER_FREEBSD
 663     unsigned int sa_flags;
 664 #endif
 665     union {
 666       __sanitizer_sigactionhandler_ptr sigaction;
 667       __sanitizer_sighandler_ptr handler;
 668     };
 669 #if SANITIZER_FREEBSD
 670     int sa_flags;
 671     __sanitizer_sigset_t sa_mask;
 672 #else
 673 #if defined(__s390x__)
 674     int sa_resv;
 675 #else
 676     __sanitizer_sigset_t sa_mask;
 677 #endif
 678 #ifndef __mips__
 679 #if defined(__sparc__)
 680 #if __GLIBC_PREREQ (2, 20)
 681     // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
 682 #if defined(__arch64__)
 683     // To maintain ABI compatibility on sparc64 when switching to an int,
 684     // __glibc_reserved0 was added.
 685     int __glibc_reserved0;
 686 #endif
 687     int sa_flags;
 688 #else
 689     unsigned long sa_flags;
 690 #endif
 691 #else
 692     int sa_flags;
 693 #endif
 694 #endif
 695 #endif
 696 #if SANITIZER_LINUX
 697     void (*sa_restorer)();
 698 #endif
 699 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
 700     int sa_resv[1];
 701 #endif
 702 #if defined(__s390x__)
 703     __sanitizer_sigset_t sa_mask;
 704 #endif
 705   };
 706 #endif // !SANITIZER_ANDROID
 707
 708 #if SANITIZER_FREEBSD
 709   typedef __sanitizer_sigset_t __sanitizer_kernel_sigset_t;
 710 #elif defined(__mips__)
 711   struct __sanitizer_kernel_sigset_t {
 712     uptr sig[2];
 713   };
 714 #else
 715   struct __sanitizer_kernel_sigset_t {
 716     u8 sig[8];
 717   };
 718 #endif
 719
 720   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
 721 #if SANITIZER_MIPS
 722   struct __sanitizer_kernel_sigaction_t {
 723     unsigned int sa_flags;
 724     union {
 725       void (*handler)(int signo);
 726       void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
 727     };
 728     __sanitizer_kernel_sigset_t sa_mask;
 729     void (*sa_restorer)(void);
 730   };
 731 #else
 732   struct __sanitizer_kernel_sigaction_t {
 733     union {
 734       void (*handler)(int signo);
 735       void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
 736     };
 737     unsigned long sa_flags;
 738     void (*sa_restorer)(void);
 739     __sanitizer_kernel_sigset_t sa_mask;
 740   };
 741 #endif
 742
 743   extern const uptr sig_ign;
 744   extern const uptr sig_dfl;
 745   extern const uptr sig_err;
 746   extern const uptr sa_siginfo;
 747
 748 #if SANITIZER_LINUX
 749   extern int e_tabsz;
 750 #endif
 751
 752   extern int af_inet;
 753   extern int af_inet6;
 754   uptr __sanitizer_in_addr_sz(int af);
 755
 756 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 757   struct __sanitizer_dl_phdr_info {
 758     uptr dlpi_addr;
 759     const char *dlpi_name;
 760     const void *dlpi_phdr;
 761     short dlpi_phnum;
 762   };
 763
 764   extern unsigned struct_ElfW_Phdr_sz;
 765 #endif
 766
 767   struct __sanitizer_addrinfo {
 768     int ai_flags;
 769     int ai_family;
 770     int ai_socktype;
 771     int ai_protocol;
 772 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 773     unsigned ai_addrlen;
 774     char *ai_canonname;
 775     void *ai_addr;
 776 #else // LINUX
 777     unsigned ai_addrlen;
 778     void *ai_addr;
 779     char *ai_canonname;
 780 #endif
 781     struct __sanitizer_addrinfo *ai_next;
 782   };
 783
 784   struct __sanitizer_hostent {
 785     char *h_name;
 786     char **h_aliases;
 787     int h_addrtype;
 788     int h_length;
 789     char **h_addr_list;
 790   };
 791
 792   struct __sanitizer_pollfd {
 793     int fd;
 794     short events;
 795     short revents;
 796   };
 797
 798 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
 799   typedef unsigned __sanitizer_nfds_t;
 800 #else
 801   typedef unsigned long __sanitizer_nfds_t;
 802 #endif
 803
 804 #if !SANITIZER_ANDROID
 805 # if SANITIZER_LINUX
 806   struct __sanitizer_glob_t {
 807     uptr gl_pathc;
 808     char **gl_pathv;
 809     uptr gl_offs;
 810     int gl_flags;
 811
 812     void (*gl_closedir)(void *dirp);
 813     void *(*gl_readdir)(void *dirp);
 814     void *(*gl_opendir)(const char *);
 815     int (*gl_lstat)(const char *, void *);
 816     int (*gl_stat)(const char *, void *);
 817   };
 818 # elif SANITIZER_FREEBSD
 819   struct __sanitizer_glob_t {
 820     uptr gl_pathc;
 821     uptr gl_matchc;
 822     uptr gl_offs;
 823     int gl_flags;
 824     char **gl_pathv;
 825     int (*gl_errfunc)(const char*, int);
 826     void (*gl_closedir)(void *dirp);
 827     struct dirent *(*gl_readdir)(void *dirp);
 828     void *(*gl_opendir)(const char*);
 829     int (*gl_lstat)(const char*, void* /* struct stat* */);
 830     int (*gl_stat)(const char*, void* /* struct stat* */);
 831   };
 832 # endif  // SANITIZER_FREEBSD
 833
 834 # if SANITIZER_LINUX || SANITIZER_FREEBSD
 835   extern int glob_nomatch;
 836   extern int glob_altdirfunc;
 837 # endif
 838 #endif  // !SANITIZER_ANDROID
 839
 840   extern unsigned path_max;
 841
 842   struct __sanitizer_wordexp_t {
 843     uptr we_wordc;
 844     char **we_wordv;
 845     uptr we_offs;
 846 #if SANITIZER_FREEBSD
 847     char *we_strings;
 848     uptr we_nbytes;
 849 #endif
 850   };
 851
 852 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 853   struct __sanitizer_FILE {
 854     int _flags;
 855     char *_IO_read_ptr;
 856     char *_IO_read_end;
 857     char *_IO_read_base;
 858     char *_IO_write_base;
 859     char *_IO_write_ptr;
 860     char *_IO_write_end;
 861     char *_IO_buf_base;
 862     char *_IO_buf_end;
 863     char *_IO_save_base;
 864     char *_IO_backup_base;
 865     char *_IO_save_end;
 866     void *_markers;
 867     __sanitizer_FILE *_chain;
 868     int _fileno;
 869   };
 870 # define SANITIZER_HAS_STRUCT_FILE 1
 871 #else
 872   typedef void __sanitizer_FILE;
 873 # define SANITIZER_HAS_STRUCT_FILE 0
 874 #endif
 875
 876 #if SANITIZER_LINUX && !SANITIZER_ANDROID && \
 877   (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
 878     defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
 879     defined(__s390__))
 880   extern unsigned struct_user_regs_struct_sz;
 881   extern unsigned struct_user_fpregs_struct_sz;
 882   extern unsigned struct_user_fpxregs_struct_sz;
 883   extern unsigned struct_user_vfpregs_struct_sz;
 884
 885   extern int ptrace_peektext;
 886   extern int ptrace_peekdata;
 887   extern int ptrace_peekuser;
 888   extern int ptrace_getregs;
 889   extern int ptrace_setregs;
 890   extern int ptrace_getfpregs;
 891   extern int ptrace_setfpregs;
 892   extern int ptrace_getfpxregs;
 893   extern int ptrace_setfpxregs;
 894   extern int ptrace_getvfpregs;
 895   extern int ptrace_setvfpregs;
 896   extern int ptrace_getsiginfo;
 897   extern int ptrace_setsiginfo;
 898   extern int ptrace_getregset;
 899   extern int ptrace_setregset;
 900   extern int ptrace_geteventmsg;
 901 #endif
 902
 903 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 904   extern unsigned struct_shminfo_sz;
 905   extern unsigned struct_shm_info_sz;
 906   extern int shmctl_ipc_stat;
 907   extern int shmctl_ipc_info;
 908   extern int shmctl_shm_info;
 909   extern int shmctl_shm_stat;
 910 #endif
 911
 912 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
 913   extern unsigned struct_utmp_sz;
 914 #endif
 915 #if !SANITIZER_ANDROID
 916   extern unsigned struct_utmpx_sz;
 917 #endif
 918
 919   extern int map_fixed;
 920
 921   // ioctl arguments
 922   struct __sanitizer_ifconf {
 923     int ifc_len;
 924     union {
 925       void *ifcu_req;
 926     } ifc_ifcu;
 927 #if SANITIZER_MAC
 928   } __attribute__((packed));
 929 #else
 930   };
 931 #endif
 932
 933 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 934 struct __sanitizer__obstack_chunk {
 935   char *limit;
 936   struct __sanitizer__obstack_chunk *prev;
 937 };
 938
 939 struct __sanitizer_obstack {
 940   long chunk_size;
 941   struct __sanitizer__obstack_chunk *chunk;
 942   char *object_base;
 943   char *next_free;
 944   uptr more_fields[7];
 945 };
 946
 947 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
 948 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
 949                                             uptr size);
 950 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
 951                                           int whence);
 952 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
 953
 954 struct __sanitizer_cookie_io_functions_t {
 955   __sanitizer_cookie_io_read read;
 956   __sanitizer_cookie_io_write write;
 957   __sanitizer_cookie_io_seek seek;
 958   __sanitizer_cookie_io_close close;
 959 };
 960 #endif
 961
 962 #define IOC_NRBITS 8
 963 #define IOC_TYPEBITS 8
 964 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
 965     defined(__sparc__)
 966 #define IOC_SIZEBITS 13
 967 #define IOC_DIRBITS 3
 968 #define IOC_NONE 1U
 969 #define IOC_WRITE 4U
 970 #define IOC_READ 2U
 971 #else
 972 #define IOC_SIZEBITS 14
 973 #define IOC_DIRBITS 2
 974 #define IOC_NONE 0U
 975 #define IOC_WRITE 1U
 976 #define IOC_READ 2U
 977 #endif
 978 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
 979 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
 980 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
 981 #if defined(IOC_DIRMASK)
 982 #undef IOC_DIRMASK
 983 #endif
 984 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
 985 #define IOC_NRSHIFT 0
 986 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
 987 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
 988 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
 989 #define EVIOC_EV_MAX 0x1f
 990 #define EVIOC_ABS_MAX 0x3f
 991
 992 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
 993 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
 994 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
 995
 996 #if defined(__sparc__)
 997 // In sparc the 14 bits SIZE field overlaps with the
 998 // least significant bit of DIR, so either IOC_READ or
 999 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
1000 #define IOC_SIZE(nr) \
1001   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
1002 #else
1003 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
1004 #endif
1005
1006   extern unsigned struct_ifreq_sz;
1007   extern unsigned struct_termios_sz;
1008   extern unsigned struct_winsize_sz;
1009
1010 #if SANITIZER_LINUX
1011   extern unsigned struct_arpreq_sz;
1012   extern unsigned struct_cdrom_msf_sz;
1013   extern unsigned struct_cdrom_multisession_sz;
1014   extern unsigned struct_cdrom_read_audio_sz;
1015   extern unsigned struct_cdrom_subchnl_sz;
1016   extern unsigned struct_cdrom_ti_sz;
1017   extern unsigned struct_cdrom_tocentry_sz;
1018   extern unsigned struct_cdrom_tochdr_sz;
1019   extern unsigned struct_cdrom_volctrl_sz;
1020   extern unsigned struct_ff_effect_sz;
1021   extern unsigned struct_floppy_drive_params_sz;
1022   extern unsigned struct_floppy_drive_struct_sz;
1023   extern unsigned struct_floppy_fdc_state_sz;
1024   extern unsigned struct_floppy_max_errors_sz;
1025   extern unsigned struct_floppy_raw_cmd_sz;
1026   extern unsigned struct_floppy_struct_sz;
1027   extern unsigned struct_floppy_write_errors_sz;
1028   extern unsigned struct_format_descr_sz;
1029   extern unsigned struct_hd_driveid_sz;
1030   extern unsigned struct_hd_geometry_sz;
1031   extern unsigned struct_input_absinfo_sz;
1032   extern unsigned struct_input_id_sz;
1033   extern unsigned struct_mtpos_sz;
1034   extern unsigned struct_termio_sz;
1035   extern unsigned struct_vt_consize_sz;
1036   extern unsigned struct_vt_sizes_sz;
1037   extern unsigned struct_vt_stat_sz;
1038 #endif  // SANITIZER_LINUX
1039
1040 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1041   extern unsigned struct_copr_buffer_sz;
1042   extern unsigned struct_copr_debug_buf_sz;
1043   extern unsigned struct_copr_msg_sz;
1044   extern unsigned struct_midi_info_sz;
1045   extern unsigned struct_mtget_sz;
1046   extern unsigned struct_mtop_sz;
1047   extern unsigned struct_rtentry_sz;
1048   extern unsigned struct_sbi_instrument_sz;
1049   extern unsigned struct_seq_event_rec_sz;
1050   extern unsigned struct_synth_info_sz;
1051   extern unsigned struct_vt_mode_sz;
1052 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
1053
1054 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1055   extern unsigned struct_ax25_parms_struct_sz;
1056   extern unsigned struct_cyclades_monitor_sz;
1057   extern unsigned struct_input_keymap_entry_sz;
1058   extern unsigned struct_ipx_config_data_sz;
1059   extern unsigned struct_kbdiacrs_sz;
1060   extern unsigned struct_kbentry_sz;
1061   extern unsigned struct_kbkeycode_sz;
1062   extern unsigned struct_kbsentry_sz;
1063   extern unsigned struct_mtconfiginfo_sz;
1064   extern unsigned struct_nr_parms_struct_sz;
1065   extern unsigned struct_scc_modem_sz;
1066   extern unsigned struct_scc_stat_sz;
1067   extern unsigned struct_serial_multiport_struct_sz;
1068   extern unsigned struct_serial_struct_sz;
1069   extern unsigned struct_sockaddr_ax25_sz;
1070   extern unsigned struct_unimapdesc_sz;
1071   extern unsigned struct_unimapinit_sz;
1072 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1073
1074 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1075   extern unsigned struct_audio_buf_info_sz;
1076   extern unsigned struct_ppp_stats_sz;
1077 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1078
1079 #if !SANITIZER_ANDROID && !SANITIZER_MAC
1080   extern unsigned struct_sioc_sg_req_sz;
1081   extern unsigned struct_sioc_vif_req_sz;
1082 #endif
1083
1084   // ioctl request identifiers
1085
1086   // A special value to mark ioctls that are not present on the target platform,
1087   // when it can not be determined without including any system headers.
1088   extern const unsigned IOCTL_NOT_PRESENT;
1089
1090   extern unsigned IOCTL_FIOASYNC;
1091   extern unsigned IOCTL_FIOCLEX;
1092   extern unsigned IOCTL_FIOGETOWN;
1093   extern unsigned IOCTL_FIONBIO;
1094   extern unsigned IOCTL_FIONCLEX;
1095   extern unsigned IOCTL_FIOSETOWN;
1096   extern unsigned IOCTL_SIOCADDMULTI;
1097   extern unsigned IOCTL_SIOCATMARK;
1098   extern unsigned IOCTL_SIOCDELMULTI;
1099   extern unsigned IOCTL_SIOCGIFADDR;
1100   extern unsigned IOCTL_SIOCGIFBRDADDR;
1101   extern unsigned IOCTL_SIOCGIFCONF;
1102   extern unsigned IOCTL_SIOCGIFDSTADDR;
1103   extern unsigned IOCTL_SIOCGIFFLAGS;
1104   extern unsigned IOCTL_SIOCGIFMETRIC;
1105   extern unsigned IOCTL_SIOCGIFMTU;
1106   extern unsigned IOCTL_SIOCGIFNETMASK;
1107   extern unsigned IOCTL_SIOCGPGRP;
1108   extern unsigned IOCTL_SIOCSIFADDR;
1109   extern unsigned IOCTL_SIOCSIFBRDADDR;
1110   extern unsigned IOCTL_SIOCSIFDSTADDR;
1111   extern unsigned IOCTL_SIOCSIFFLAGS;
1112   extern unsigned IOCTL_SIOCSIFMETRIC;
1113   extern unsigned IOCTL_SIOCSIFMTU;
1114   extern unsigned IOCTL_SIOCSIFNETMASK;
1115   extern unsigned IOCTL_SIOCSPGRP;
1116   extern unsigned IOCTL_TIOCCONS;
1117   extern unsigned IOCTL_TIOCEXCL;
1118   extern unsigned IOCTL_TIOCGETD;
1119   extern unsigned IOCTL_TIOCGPGRP;
1120   extern unsigned IOCTL_TIOCGWINSZ;
1121   extern unsigned IOCTL_TIOCMBIC;
1122   extern unsigned IOCTL_TIOCMBIS;
1123   extern unsigned IOCTL_TIOCMGET;
1124   extern unsigned IOCTL_TIOCMSET;
1125   extern unsigned IOCTL_TIOCNOTTY;
1126   extern unsigned IOCTL_TIOCNXCL;
1127   extern unsigned IOCTL_TIOCOUTQ;
1128   extern unsigned IOCTL_TIOCPKT;
1129   extern unsigned IOCTL_TIOCSCTTY;
1130   extern unsigned IOCTL_TIOCSETD;
1131   extern unsigned IOCTL_TIOCSPGRP;
1132   extern unsigned IOCTL_TIOCSTI;
1133   extern unsigned IOCTL_TIOCSWINSZ;
1134 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1135   extern unsigned IOCTL_SIOCGETSGCNT;
1136   extern unsigned IOCTL_SIOCGETVIFCNT;
1137 #endif
1138 #if SANITIZER_LINUX
1139   extern unsigned IOCTL_EVIOCGABS;
1140   extern unsigned IOCTL_EVIOCGBIT;
1141   extern unsigned IOCTL_EVIOCGEFFECTS;
1142   extern unsigned IOCTL_EVIOCGID;
1143   extern unsigned IOCTL_EVIOCGKEY;
1144   extern unsigned IOCTL_EVIOCGKEYCODE;
1145   extern unsigned IOCTL_EVIOCGLED;
1146   extern unsigned IOCTL_EVIOCGNAME;
1147   extern unsigned IOCTL_EVIOCGPHYS;
1148   extern unsigned IOCTL_EVIOCGRAB;
1149   extern unsigned IOCTL_EVIOCGREP;
1150   extern unsigned IOCTL_EVIOCGSND;
1151   extern unsigned IOCTL_EVIOCGSW;
1152   extern unsigned IOCTL_EVIOCGUNIQ;
1153   extern unsigned IOCTL_EVIOCGVERSION;
1154   extern unsigned IOCTL_EVIOCRMFF;
1155   extern unsigned IOCTL_EVIOCSABS;
1156   extern unsigned IOCTL_EVIOCSFF;
1157   extern unsigned IOCTL_EVIOCSKEYCODE;
1158   extern unsigned IOCTL_EVIOCSREP;
1159   extern unsigned IOCTL_BLKFLSBUF;
1160   extern unsigned IOCTL_BLKGETSIZE;
1161   extern unsigned IOCTL_BLKRAGET;
1162   extern unsigned IOCTL_BLKRASET;
1163   extern unsigned IOCTL_BLKROGET;
1164   extern unsigned IOCTL_BLKROSET;
1165   extern unsigned IOCTL_BLKRRPART;
1166   extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1167   extern unsigned IOCTL_CDROMEJECT;
1168   extern unsigned IOCTL_CDROMEJECT_SW;
1169   extern unsigned IOCTL_CDROMMULTISESSION;
1170   extern unsigned IOCTL_CDROMPAUSE;
1171   extern unsigned IOCTL_CDROMPLAYMSF;
1172   extern unsigned IOCTL_CDROMPLAYTRKIND;
1173   extern unsigned IOCTL_CDROMREADAUDIO;
1174   extern unsigned IOCTL_CDROMREADCOOKED;
1175   extern unsigned IOCTL_CDROMREADMODE1;
1176   extern unsigned IOCTL_CDROMREADMODE2;
1177   extern unsigned IOCTL_CDROMREADRAW;
1178   extern unsigned IOCTL_CDROMREADTOCENTRY;
1179   extern unsigned IOCTL_CDROMREADTOCHDR;
1180   extern unsigned IOCTL_CDROMRESET;
1181   extern unsigned IOCTL_CDROMRESUME;
1182   extern unsigned IOCTL_CDROMSEEK;
1183   extern unsigned IOCTL_CDROMSTART;
1184   extern unsigned IOCTL_CDROMSTOP;
1185   extern unsigned IOCTL_CDROMSUBCHNL;
1186   extern unsigned IOCTL_CDROMVOLCTRL;
1187   extern unsigned IOCTL_CDROMVOLREAD;
1188   extern unsigned IOCTL_CDROM_GET_UPC;
1189   extern unsigned IOCTL_FDCLRPRM;
1190   extern unsigned IOCTL_FDDEFPRM;
1191   extern unsigned IOCTL_FDFLUSH;
1192   extern unsigned IOCTL_FDFMTBEG;
1193   extern unsigned IOCTL_FDFMTEND;
1194   extern unsigned IOCTL_FDFMTTRK;
1195   extern unsigned IOCTL_FDGETDRVPRM;
1196   extern unsigned IOCTL_FDGETDRVSTAT;
1197   extern unsigned IOCTL_FDGETDRVTYP;
1198   extern unsigned IOCTL_FDGETFDCSTAT;
1199   extern unsigned IOCTL_FDGETMAXERRS;
1200   extern unsigned IOCTL_FDGETPRM;
1201   extern unsigned IOCTL_FDMSGOFF;
1202   extern unsigned IOCTL_FDMSGON;
1203   extern unsigned IOCTL_FDPOLLDRVSTAT;
1204   extern unsigned IOCTL_FDRAWCMD;
1205   extern unsigned IOCTL_FDRESET;
1206   extern unsigned IOCTL_FDSETDRVPRM;
1207   extern unsigned IOCTL_FDSETEMSGTRESH;
1208   extern unsigned IOCTL_FDSETMAXERRS;
1209   extern unsigned IOCTL_FDSETPRM;
1210   extern unsigned IOCTL_FDTWADDLE;
1211   extern unsigned IOCTL_FDWERRORCLR;
1212   extern unsigned IOCTL_FDWERRORGET;
1213   extern unsigned IOCTL_HDIO_DRIVE_CMD;
1214   extern unsigned IOCTL_HDIO_GETGEO;
1215   extern unsigned IOCTL_HDIO_GET_32BIT;
1216   extern unsigned IOCTL_HDIO_GET_DMA;
1217   extern unsigned IOCTL_HDIO_GET_IDENTITY;
1218   extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1219   extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1220   extern unsigned IOCTL_HDIO_GET_NOWERR;
1221   extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1222   extern unsigned IOCTL_HDIO_SET_32BIT;
1223   extern unsigned IOCTL_HDIO_SET_DMA;
1224   extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1225   extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1226   extern unsigned IOCTL_HDIO_SET_NOWERR;
1227   extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1228   extern unsigned IOCTL_MTIOCPOS;
1229   extern unsigned IOCTL_PPPIOCGASYNCMAP;
1230   extern unsigned IOCTL_PPPIOCGDEBUG;
1231   extern unsigned IOCTL_PPPIOCGFLAGS;
1232   extern unsigned IOCTL_PPPIOCGUNIT;
1233   extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1234   extern unsigned IOCTL_PPPIOCSASYNCMAP;
1235   extern unsigned IOCTL_PPPIOCSDEBUG;
1236   extern unsigned IOCTL_PPPIOCSFLAGS;
1237   extern unsigned IOCTL_PPPIOCSMAXCID;
1238   extern unsigned IOCTL_PPPIOCSMRU;
1239   extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1240   extern unsigned IOCTL_SIOCDARP;
1241   extern unsigned IOCTL_SIOCDRARP;
1242   extern unsigned IOCTL_SIOCGARP;
1243   extern unsigned IOCTL_SIOCGIFENCAP;
1244   extern unsigned IOCTL_SIOCGIFHWADDR;
1245   extern unsigned IOCTL_SIOCGIFMAP;
1246   extern unsigned IOCTL_SIOCGIFMEM;
1247   extern unsigned IOCTL_SIOCGIFNAME;
1248   extern unsigned IOCTL_SIOCGIFSLAVE;
1249   extern unsigned IOCTL_SIOCGRARP;
1250   extern unsigned IOCTL_SIOCGSTAMP;
1251   extern unsigned IOCTL_SIOCSARP;
1252   extern unsigned IOCTL_SIOCSIFENCAP;
1253   extern unsigned IOCTL_SIOCSIFHWADDR;
1254   extern unsigned IOCTL_SIOCSIFLINK;
1255   extern unsigned IOCTL_SIOCSIFMAP;
1256   extern unsigned IOCTL_SIOCSIFMEM;
1257   extern unsigned IOCTL_SIOCSIFSLAVE;
1258   extern unsigned IOCTL_SIOCSRARP;
1259   extern unsigned IOCTL_SNDCTL_COPR_HALT;
1260   extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1261   extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1262   extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1263   extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1264   extern unsigned IOCTL_SNDCTL_COPR_RESET;
1265   extern unsigned IOCTL_SNDCTL_COPR_RUN;
1266   extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1267   extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1268   extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1269   extern unsigned IOCTL_TCFLSH;
1270   extern unsigned IOCTL_TCGETA;
1271   extern unsigned IOCTL_TCGETS;
1272   extern unsigned IOCTL_TCSBRK;
1273   extern unsigned IOCTL_TCSBRKP;
1274   extern unsigned IOCTL_TCSETA;
1275   extern unsigned IOCTL_TCSETAF;
1276   extern unsigned IOCTL_TCSETAW;
1277   extern unsigned IOCTL_TCSETS;
1278   extern unsigned IOCTL_TCSETSF;
1279   extern unsigned IOCTL_TCSETSW;
1280   extern unsigned IOCTL_TCXONC;
1281   extern unsigned IOCTL_TIOCGLCKTRMIOS;
1282   extern unsigned IOCTL_TIOCGSOFTCAR;
1283   extern unsigned IOCTL_TIOCINQ;
1284   extern unsigned IOCTL_TIOCLINUX;
1285   extern unsigned IOCTL_TIOCSERCONFIG;
1286   extern unsigned IOCTL_TIOCSERGETLSR;
1287   extern unsigned IOCTL_TIOCSERGWILD;
1288   extern unsigned IOCTL_TIOCSERSWILD;
1289   extern unsigned IOCTL_TIOCSLCKTRMIOS;
1290   extern unsigned IOCTL_TIOCSSOFTCAR;
1291   extern unsigned IOCTL_VT_DISALLOCATE;
1292   extern unsigned IOCTL_VT_GETSTATE;
1293   extern unsigned IOCTL_VT_RESIZE;
1294   extern unsigned IOCTL_VT_RESIZEX;
1295   extern unsigned IOCTL_VT_SENDSIG;
1296 #endif  // SANITIZER_LINUX
1297 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1298   extern unsigned IOCTL_MTIOCGET;
1299   extern unsigned IOCTL_MTIOCTOP;
1300   extern unsigned IOCTL_SIOCADDRT;
1301   extern unsigned IOCTL_SIOCDELRT;
1302   extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1303   extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1304   extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1305   extern unsigned IOCTL_SNDCTL_DSP_POST;
1306   extern unsigned IOCTL_SNDCTL_DSP_RESET;
1307   extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1308   extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1309   extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1310   extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1311   extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1312   extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1313   extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1314   extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1315   extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1316   extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1317   extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1318   extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1319   extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1320   extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1321   extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1322   extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1323   extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1324   extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1325   extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1326   extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1327   extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1328   extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1329   extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1330   extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1331   extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1332   extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1333   extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1334   extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1335   extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1336   extern unsigned IOCTL_SNDCTL_TMR_START;
1337   extern unsigned IOCTL_SNDCTL_TMR_STOP;
1338   extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1339   extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1340   extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1341   extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1342   extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1343   extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1344   extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1345   extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1346   extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1347   extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1348   extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1349   extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1350   extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1351   extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1352   extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1353   extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1354   extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1355   extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1356   extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1357   extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1358   extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1359   extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1360   extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1361   extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1362   extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1363   extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1364   extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1365   extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1366   extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1367   extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1368   extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1369   extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1370   extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1371   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1372   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1373   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1374   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1375   extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1376   extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1377   extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1378   extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1379   extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1380   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1381   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1382   extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1383   extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1384   extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1385   extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1386   extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1387   extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1388   extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1389   extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1390   extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1391   extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1392   extern unsigned IOCTL_VT_ACTIVATE;
1393   extern unsigned IOCTL_VT_GETMODE;
1394   extern unsigned IOCTL_VT_OPENQRY;
1395   extern unsigned IOCTL_VT_RELDISP;
1396   extern unsigned IOCTL_VT_SETMODE;
1397   extern unsigned IOCTL_VT_WAITACTIVE;
1398 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
1399
1400 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1401   extern unsigned IOCTL_CYGETDEFTHRESH;
1402   extern unsigned IOCTL_CYGETDEFTIMEOUT;
1403   extern unsigned IOCTL_CYGETMON;
1404   extern unsigned IOCTL_CYGETTHRESH;
1405   extern unsigned IOCTL_CYGETTIMEOUT;
1406   extern unsigned IOCTL_CYSETDEFTHRESH;
1407   extern unsigned IOCTL_CYSETDEFTIMEOUT;
1408   extern unsigned IOCTL_CYSETTHRESH;
1409   extern unsigned IOCTL_CYSETTIMEOUT;
1410   extern unsigned IOCTL_EQL_EMANCIPATE;
1411   extern unsigned IOCTL_EQL_ENSLAVE;
1412   extern unsigned IOCTL_EQL_GETMASTRCFG;
1413   extern unsigned IOCTL_EQL_GETSLAVECFG;
1414   extern unsigned IOCTL_EQL_SETMASTRCFG;
1415   extern unsigned IOCTL_EQL_SETSLAVECFG;
1416   extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1417   extern unsigned IOCTL_EVIOCGPROP;
1418   extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1419   extern unsigned IOCTL_FS_IOC_GETFLAGS;
1420   extern unsigned IOCTL_FS_IOC_GETVERSION;
1421   extern unsigned IOCTL_FS_IOC_SETFLAGS;
1422   extern unsigned IOCTL_FS_IOC_SETVERSION;
1423   extern unsigned IOCTL_GIO_CMAP;
1424   extern unsigned IOCTL_GIO_FONT;
1425   extern unsigned IOCTL_GIO_UNIMAP;
1426   extern unsigned IOCTL_GIO_UNISCRNMAP;
1427   extern unsigned IOCTL_KDADDIO;
1428   extern unsigned IOCTL_KDDELIO;
1429   extern unsigned IOCTL_KDGETKEYCODE;
1430   extern unsigned IOCTL_KDGKBDIACR;
1431   extern unsigned IOCTL_KDGKBENT;
1432   extern unsigned IOCTL_KDGKBLED;
1433   extern unsigned IOCTL_KDGKBMETA;
1434   extern unsigned IOCTL_KDGKBSENT;
1435   extern unsigned IOCTL_KDMAPDISP;
1436   extern unsigned IOCTL_KDSETKEYCODE;
1437   extern unsigned IOCTL_KDSIGACCEPT;
1438   extern unsigned IOCTL_KDSKBDIACR;
1439   extern unsigned IOCTL_KDSKBENT;
1440   extern unsigned IOCTL_KDSKBLED;
1441   extern unsigned IOCTL_KDSKBMETA;
1442   extern unsigned IOCTL_KDSKBSENT;
1443   extern unsigned IOCTL_KDUNMAPDISP;
1444   extern unsigned IOCTL_LPABORT;
1445   extern unsigned IOCTL_LPABORTOPEN;
1446   extern unsigned IOCTL_LPCAREFUL;
1447   extern unsigned IOCTL_LPCHAR;
1448   extern unsigned IOCTL_LPGETIRQ;
1449   extern unsigned IOCTL_LPGETSTATUS;
1450   extern unsigned IOCTL_LPRESET;
1451   extern unsigned IOCTL_LPSETIRQ;
1452   extern unsigned IOCTL_LPTIME;
1453   extern unsigned IOCTL_LPWAIT;
1454   extern unsigned IOCTL_MTIOCGETCONFIG;
1455   extern unsigned IOCTL_MTIOCSETCONFIG;
1456   extern unsigned IOCTL_PIO_CMAP;
1457   extern unsigned IOCTL_PIO_FONT;
1458   extern unsigned IOCTL_PIO_UNIMAP;
1459   extern unsigned IOCTL_PIO_UNIMAPCLR;
1460   extern unsigned IOCTL_PIO_UNISCRNMAP;
1461   extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1462   extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1463   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1464   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1465   extern unsigned IOCTL_SIOCAIPXITFCRT;
1466   extern unsigned IOCTL_SIOCAIPXPRISLT;
1467   extern unsigned IOCTL_SIOCAX25ADDUID;
1468   extern unsigned IOCTL_SIOCAX25DELUID;
1469   extern unsigned IOCTL_SIOCAX25GETPARMS;
1470   extern unsigned IOCTL_SIOCAX25GETUID;
1471   extern unsigned IOCTL_SIOCAX25NOUID;
1472   extern unsigned IOCTL_SIOCAX25SETPARMS;
1473   extern unsigned IOCTL_SIOCDEVPLIP;
1474   extern unsigned IOCTL_SIOCIPXCFGDATA;
1475   extern unsigned IOCTL_SIOCNRDECOBS;
1476   extern unsigned IOCTL_SIOCNRGETPARMS;
1477   extern unsigned IOCTL_SIOCNRRTCTL;
1478   extern unsigned IOCTL_SIOCNRSETPARMS;
1479   extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1480   extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1481   extern unsigned IOCTL_TIOCGSERIAL;
1482   extern unsigned IOCTL_TIOCSERGETMULTI;
1483   extern unsigned IOCTL_TIOCSERSETMULTI;
1484   extern unsigned IOCTL_TIOCSSERIAL;
1485 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1486
1487 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1488   extern unsigned IOCTL_GIO_SCRNMAP;
1489   extern unsigned IOCTL_KDDISABIO;
1490   extern unsigned IOCTL_KDENABIO;
1491   extern unsigned IOCTL_KDGETLED;
1492   extern unsigned IOCTL_KDGETMODE;
1493   extern unsigned IOCTL_KDGKBMODE;
1494   extern unsigned IOCTL_KDGKBTYPE;
1495   extern unsigned IOCTL_KDMKTONE;
1496   extern unsigned IOCTL_KDSETLED;
1497   extern unsigned IOCTL_KDSETMODE;
1498   extern unsigned IOCTL_KDSKBMODE;
1499   extern unsigned IOCTL_KIOCSOUND;
1500   extern unsigned IOCTL_PIO_SCRNMAP;
1501 #endif
1502
1503   extern const int si_SEGV_MAPERR;
1504   extern const int si_SEGV_ACCERR;
1505 }  // namespace __sanitizer
1506
1507 #define CHECK_TYPE_SIZE(TYPE) \
1508   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1509
1510 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1511   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
1512                  sizeof(((CLASS *) NULL)->MEMBER));                \
1513   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
1514                  offsetof(CLASS, MEMBER))
1515
1516 // For sigaction, which is a function and struct at the same time,
1517 // and thus requires explicit "struct" in sizeof() expression.
1518 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1519   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
1520                  sizeof(((struct CLASS *) NULL)->MEMBER));                \
1521   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==          \
1522                  offsetof(struct CLASS, MEMBER))
1523
1524 #define SIGACTION_SYMNAME sigaction
1525
1526 #endif  // SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC
1527
1528 #endif