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