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