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