xref: /NextBSD/contrib/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h (revision 84d351007654069f9643c8e4b4802a7f5f08ee42)
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 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
154 
155 #if SANITIZER_ANDROID
156   struct __sanitizer_mallinfo {
157     uptr v[10];
158   };
159 #endif
160 
161 #if SANITIZER_LINUX && !SANITIZER_ANDROID
162   struct __sanitizer_mallinfo {
163     int v[10];
164   };
165 
166   extern unsigned struct_ustat_sz;
167   extern unsigned struct_rlimit64_sz;
168   extern unsigned struct_statvfs64_sz;
169 
170   struct __sanitizer_ipc_perm {
171     int __key;
172     int uid;
173     int gid;
174     int cuid;
175     int cgid;
176 #ifdef __powerpc__
177     unsigned mode;
178     unsigned __seq;
179     u64 __unused1;
180     u64 __unused2;
181 #elif defined(__mips__) || defined(__aarch64__)
182     unsigned int mode;
183     unsigned short __seq;
184     unsigned short __pad1;
185     unsigned long __unused1;
186     unsigned long __unused2;
187 #else
188     unsigned short mode;
189     unsigned short __pad1;
190     unsigned short __seq;
191     unsigned short __pad2;
192 #if defined(__x86_64__) && !defined(_LP64)
193     u64 __unused1;
194     u64 __unused2;
195 #else
196     unsigned long __unused1;
197     unsigned long __unused2;
198 #endif
199 #endif
200   };
201 
202   struct __sanitizer_shmid_ds {
203     __sanitizer_ipc_perm shm_perm;
204   #ifndef __powerpc__
205     uptr shm_segsz;
206   #elif !defined(__powerpc64__)
207     uptr __unused0;
208   #endif
209   #if defined(__x86_64__) && !defined(_LP64)
210     u64 shm_atime;
211     u64 shm_dtime;
212     u64 shm_ctime;
213   #else
214     uptr shm_atime;
215   #if !defined(_LP64) && !defined(__mips__)
216     uptr __unused1;
217   #endif
218     uptr shm_dtime;
219   #if !defined(_LP64) && !defined(__mips__)
220     uptr __unused2;
221   #endif
222     uptr shm_ctime;
223   #if !defined(_LP64) && !defined(__mips__)
224     uptr __unused3;
225   #endif
226   #endif
227   #ifdef __powerpc__
228     uptr shm_segsz;
229   #endif
230     int shm_cpid;
231     int shm_lpid;
232   #if defined(__x86_64__) && !defined(_LP64)
233     u64 shm_nattch;
234     u64 __unused4;
235     u64 __unused5;
236   #else
237     uptr shm_nattch;
238     uptr __unused4;
239     uptr __unused5;
240   #endif
241   };
242 #elif SANITIZER_FREEBSD
243   struct __sanitizer_ipc_perm {
244     unsigned int cuid;
245     unsigned int cgid;
246     unsigned int uid;
247     unsigned int gid;
248     unsigned short mode;
249     unsigned short seq;
250     long key;
251   };
252 
253   struct __sanitizer_shmid_ds {
254     __sanitizer_ipc_perm shm_perm;
255     unsigned long shm_segsz;
256     unsigned int shm_lpid;
257     unsigned int shm_cpid;
258     int shm_nattch;
259     unsigned long shm_atime;
260     unsigned long shm_dtime;
261     unsigned long shm_ctime;
262   };
263 #endif
264 
265 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
266   extern unsigned struct_msqid_ds_sz;
267   extern unsigned struct_mq_attr_sz;
268   extern unsigned struct_timex_sz;
269   extern unsigned struct_statvfs_sz;
270 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
271 
272   struct __sanitizer_iovec {
273     void *iov_base;
274     uptr iov_len;
275   };
276 
277 #if !SANITIZER_ANDROID
278   struct __sanitizer_ifaddrs {
279     struct __sanitizer_ifaddrs *ifa_next;
280     char *ifa_name;
281     unsigned int ifa_flags;
282     void *ifa_addr;    // (struct sockaddr *)
283     void *ifa_netmask; // (struct sockaddr *)
284     // This is a union on Linux.
285 # ifdef ifa_dstaddr
286 # undef ifa_dstaddr
287 # endif
288     void *ifa_dstaddr; // (struct sockaddr *)
289     void *ifa_data;
290   };
291 #endif  // !SANITIZER_ANDROID
292 
293 #if SANITIZER_MAC
294   typedef unsigned long __sanitizer_pthread_key_t;
295 #else
296   typedef unsigned __sanitizer_pthread_key_t;
297 #endif
298 
299 #if SANITIZER_LINUX && !SANITIZER_ANDROID
300 
301   struct __sanitizer_XDR {
302     int x_op;
303     void *x_ops;
304     uptr x_public;
305     uptr x_private;
306     uptr x_base;
307     unsigned x_handy;
308   };
309 
310   const int __sanitizer_XDR_ENCODE = 0;
311   const int __sanitizer_XDR_DECODE = 1;
312   const int __sanitizer_XDR_FREE = 2;
313 #endif
314 
315   struct __sanitizer_passwd {
316     char *pw_name;
317     char *pw_passwd;
318     int pw_uid;
319     int pw_gid;
320 #if SANITIZER_MAC || SANITIZER_FREEBSD
321     long pw_change;
322     char *pw_class;
323 #endif
324 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
325     char *pw_gecos;
326 #endif
327     char *pw_dir;
328     char *pw_shell;
329 #if SANITIZER_MAC || SANITIZER_FREEBSD
330     long pw_expire;
331 #endif
332 #if SANITIZER_FREEBSD
333     int pw_fields;
334 #endif
335   };
336 
337   struct __sanitizer_group {
338     char *gr_name;
339     char *gr_passwd;
340     int gr_gid;
341     char **gr_mem;
342   };
343 
344 #if defined(__x86_64__) && !defined(_LP64)
345   typedef long long __sanitizer_time_t;
346 #else
347   typedef long __sanitizer_time_t;
348 #endif
349 
350   struct __sanitizer_timeb {
351     __sanitizer_time_t time;
352     unsigned short millitm;
353     short timezone;
354     short dstflag;
355   };
356 
357   struct __sanitizer_ether_addr {
358     u8 octet[6];
359   };
360 
361   struct __sanitizer_tm {
362     int tm_sec;
363     int tm_min;
364     int tm_hour;
365     int tm_mday;
366     int tm_mon;
367     int tm_year;
368     int tm_wday;
369     int tm_yday;
370     int tm_isdst;
371     long int tm_gmtoff;
372     const char *tm_zone;
373   };
374 
375 #if SANITIZER_LINUX
376   struct __sanitizer_mntent {
377     char *mnt_fsname;
378     char *mnt_dir;
379     char *mnt_type;
380     char *mnt_opts;
381     int mnt_freq;
382     int mnt_passno;
383   };
384 #endif
385 
386 #if SANITIZER_MAC || SANITIZER_FREEBSD
387   struct __sanitizer_msghdr {
388     void *msg_name;
389     unsigned msg_namelen;
390     struct __sanitizer_iovec *msg_iov;
391     unsigned msg_iovlen;
392     void *msg_control;
393     unsigned msg_controllen;
394     int msg_flags;
395   };
396   struct __sanitizer_cmsghdr {
397     unsigned cmsg_len;
398     int cmsg_level;
399     int cmsg_type;
400   };
401 #else
402   struct __sanitizer_msghdr {
403     void *msg_name;
404     unsigned msg_namelen;
405     struct __sanitizer_iovec *msg_iov;
406     uptr msg_iovlen;
407     void *msg_control;
408     uptr msg_controllen;
409     int msg_flags;
410   };
411   struct __sanitizer_cmsghdr {
412     uptr cmsg_len;
413     int cmsg_level;
414     int cmsg_type;
415   };
416 #endif
417 
418 #if SANITIZER_MAC
419   struct __sanitizer_dirent {
420     unsigned long long d_ino;
421     unsigned long long d_seekoff;
422     unsigned short d_reclen;
423     // more fields that we don't care about
424   };
425 #elif SANITIZER_FREEBSD
426   struct __sanitizer_dirent {
427     unsigned int d_fileno;
428     unsigned short d_reclen;
429     // more fields that we don't care about
430   };
431 #elif SANITIZER_ANDROID || defined(__x86_64__)
432   struct __sanitizer_dirent {
433     unsigned long long d_ino;
434     unsigned long long d_off;
435     unsigned short d_reclen;
436     // more fields that we don't care about
437   };
438 #else
439   struct __sanitizer_dirent {
440     uptr d_ino;
441     uptr d_off;
442     unsigned short d_reclen;
443     // more fields that we don't care about
444   };
445 #endif
446 
447 #if SANITIZER_LINUX && !SANITIZER_ANDROID
448   struct __sanitizer_dirent64 {
449     unsigned long long d_ino;
450     unsigned long long d_off;
451     unsigned short d_reclen;
452     // more fields that we don't care about
453   };
454 #endif
455 
456 // 'clock_t' is 32 bits wide on x64 FreeBSD
457 #if SANITIZER_FREEBSD
458   typedef int __sanitizer_clock_t;
459 #elif defined(__x86_64__) && !defined(_LP64)
460   typedef long long __sanitizer_clock_t;
461 #else
462   typedef long __sanitizer_clock_t;
463 #endif
464 
465 #if SANITIZER_LINUX
466   typedef int __sanitizer_clockid_t;
467 #endif
468 
469 #if SANITIZER_LINUX || SANITIZER_FREEBSD
470 #if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)\
471                    || defined(__mips__)
472   typedef unsigned __sanitizer___kernel_uid_t;
473   typedef unsigned __sanitizer___kernel_gid_t;
474 #else
475   typedef unsigned short __sanitizer___kernel_uid_t;
476   typedef unsigned short __sanitizer___kernel_gid_t;
477 #endif
478 #if defined(__x86_64__) && !defined(_LP64)
479   typedef long long __sanitizer___kernel_off_t;
480 #else
481   typedef long __sanitizer___kernel_off_t;
482 #endif
483 
484 #if defined(__powerpc__) || defined(__mips__)
485   typedef unsigned int __sanitizer___kernel_old_uid_t;
486   typedef unsigned int __sanitizer___kernel_old_gid_t;
487 #else
488   typedef unsigned short __sanitizer___kernel_old_uid_t;
489   typedef unsigned short __sanitizer___kernel_old_gid_t;
490 #endif
491 
492   typedef long long __sanitizer___kernel_loff_t;
493   typedef struct {
494     unsigned long fds_bits[1024 / (8 * sizeof(long))];
495   } __sanitizer___kernel_fd_set;
496 #endif
497 
498   // This thing depends on the platform. We are only interested in the upper
499   // limit. Verified with a compiler assert in .cc.
500   const int pthread_attr_t_max_sz = 128;
501   union __sanitizer_pthread_attr_t {
502     char size[pthread_attr_t_max_sz]; // NOLINT
503     void *align;
504   };
505 
506 #if SANITIZER_ANDROID
507   typedef unsigned long __sanitizer_sigset_t;
508 #elif SANITIZER_MAC
509   typedef unsigned __sanitizer_sigset_t;
510 #elif SANITIZER_LINUX
511   struct __sanitizer_sigset_t {
512     // The size is determined by looking at sizeof of real sigset_t on linux.
513     uptr val[128 / sizeof(uptr)];
514   };
515 #elif SANITIZER_FREEBSD
516   struct __sanitizer_sigset_t {
517      // uint32_t * 4
518      unsigned int __bits[4];
519   };
520 #endif
521 
522   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
523 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
524   struct __sanitizer_sigaction {
525     unsigned sa_flags;
526     union {
527       void (*sigaction)(int sig, void *siginfo, void *uctx);
528       void (*handler)(int sig);
529     };
530     __sanitizer_sigset_t sa_mask;
531     void (*sa_restorer)();
532   };
533 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
534   struct __sanitizer_sigaction {
535     union {
536       void (*sigaction)(int sig, void *siginfo, void *uctx);
537       void (*handler)(int sig);
538     };
539     __sanitizer_sigset_t sa_mask;
540     uptr sa_flags;
541     void (*sa_restorer)();
542   };
543 #else // !SANITIZER_ANDROID
544   struct __sanitizer_sigaction {
545 #if defined(__mips__) && !SANITIZER_FREEBSD
546     unsigned int sa_flags;
547 #endif
548     union {
549       void (*sigaction)(int sig, void *siginfo, void *uctx);
550       void (*handler)(int sig);
551     };
552 #if SANITIZER_FREEBSD
553     int sa_flags;
554     __sanitizer_sigset_t sa_mask;
555 #else
556     __sanitizer_sigset_t sa_mask;
557 #ifndef __mips__
558     int sa_flags;
559 #endif
560 #endif
561 #if SANITIZER_LINUX
562     void (*sa_restorer)();
563 #endif
564 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
565     int sa_resv[1];
566 #endif
567   };
568 #endif // !SANITIZER_ANDROID
569 
570 #if SANITIZER_FREEBSD
571   typedef __sanitizer_sigset_t __sanitizer_kernel_sigset_t;
572 #elif defined(__mips__)
573   struct __sanitizer_kernel_sigset_t {
574     u8 sig[16];
575   };
576 #else
577   struct __sanitizer_kernel_sigset_t {
578     u8 sig[8];
579   };
580 #endif
581 
582   // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
583   struct __sanitizer_kernel_sigaction_t {
584     union {
585       void (*handler)(int signo);
586       void (*sigaction)(int signo, void *info, void *ctx);
587     };
588     unsigned long sa_flags;
589     void (*sa_restorer)(void);
590     __sanitizer_kernel_sigset_t sa_mask;
591   };
592 
593   extern uptr sig_ign;
594   extern uptr sig_dfl;
595   extern uptr sa_siginfo;
596 
597 #if SANITIZER_LINUX
598   extern int e_tabsz;
599 #endif
600 
601   extern int af_inet;
602   extern int af_inet6;
603   uptr __sanitizer_in_addr_sz(int af);
604 
605 #if SANITIZER_LINUX || SANITIZER_FREEBSD
606   struct __sanitizer_dl_phdr_info {
607     uptr dlpi_addr;
608     const char *dlpi_name;
609     const void *dlpi_phdr;
610     short dlpi_phnum;
611   };
612 #endif
613 
614   struct __sanitizer_addrinfo {
615     int ai_flags;
616     int ai_family;
617     int ai_socktype;
618     int ai_protocol;
619 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
620     unsigned ai_addrlen;
621     char *ai_canonname;
622     void *ai_addr;
623 #else // LINUX
624     unsigned ai_addrlen;
625     void *ai_addr;
626     char *ai_canonname;
627 #endif
628     struct __sanitizer_addrinfo *ai_next;
629   };
630 
631   struct __sanitizer_hostent {
632     char *h_name;
633     char **h_aliases;
634     int h_addrtype;
635     int h_length;
636     char **h_addr_list;
637   };
638 
639   struct __sanitizer_pollfd {
640     int fd;
641     short events;
642     short revents;
643   };
644 
645 #if SANITIZER_ANDROID || SANITIZER_MAC || SANITIZER_FREEBSD
646   typedef unsigned __sanitizer_nfds_t;
647 #else
648   typedef unsigned long __sanitizer_nfds_t;
649 #endif
650 
651 #if !SANITIZER_ANDROID
652 # if SANITIZER_LINUX
653   struct __sanitizer_glob_t {
654     uptr gl_pathc;
655     char **gl_pathv;
656     uptr gl_offs;
657     int gl_flags;
658 
659     void (*gl_closedir)(void *dirp);
660     void *(*gl_readdir)(void *dirp);
661     void *(*gl_opendir)(const char *);
662     int (*gl_lstat)(const char *, void *);
663     int (*gl_stat)(const char *, void *);
664   };
665 # elif SANITIZER_FREEBSD
666   struct __sanitizer_glob_t {
667     uptr gl_pathc;
668     uptr gl_matchc;
669     uptr gl_offs;
670     int gl_flags;
671     char **gl_pathv;
672     int (*gl_errfunc)(const char*, int);
673     void (*gl_closedir)(void *dirp);
674     struct dirent *(*gl_readdir)(void *dirp);
675     void *(*gl_opendir)(const char*);
676     int (*gl_lstat)(const char*, void* /* struct stat* */);
677     int (*gl_stat)(const char*, void* /* struct stat* */);
678   };
679 # endif  // SANITIZER_FREEBSD
680 
681 # if SANITIZER_LINUX || SANITIZER_FREEBSD
682   extern int glob_nomatch;
683   extern int glob_altdirfunc;
684 # endif
685 #endif  // !SANITIZER_ANDROID
686 
687   extern unsigned path_max;
688 
689   struct __sanitizer_wordexp_t {
690     uptr we_wordc;
691     char **we_wordv;
692     uptr we_offs;
693 #if SANITIZER_FREEBSD
694     char *we_strings;
695     uptr we_nbytes;
696 #endif
697   };
698 
699 #if SANITIZER_LINUX && !SANITIZER_ANDROID
700   struct __sanitizer_FILE {
701     int _flags;
702     char *_IO_read_ptr;
703     char *_IO_read_end;
704     char *_IO_read_base;
705     char *_IO_write_base;
706     char *_IO_write_ptr;
707     char *_IO_write_end;
708     char *_IO_buf_base;
709     char *_IO_buf_end;
710     char *_IO_save_base;
711     char *_IO_backup_base;
712     char *_IO_save_end;
713     void *_markers;
714     __sanitizer_FILE *_chain;
715     int _fileno;
716   };
717 # define SANITIZER_HAS_STRUCT_FILE 1
718 #else
719   typedef void __sanitizer_FILE;
720 # define SANITIZER_HAS_STRUCT_FILE 0
721 #endif
722 
723 #if SANITIZER_LINUX && !SANITIZER_ANDROID && \
724   (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
725     defined(__powerpc64__))
726   extern unsigned struct_user_regs_struct_sz;
727   extern unsigned struct_user_fpregs_struct_sz;
728   extern unsigned struct_user_fpxregs_struct_sz;
729 
730   extern int ptrace_peektext;
731   extern int ptrace_peekdata;
732   extern int ptrace_peekuser;
733   extern int ptrace_getregs;
734   extern int ptrace_setregs;
735   extern int ptrace_getfpregs;
736   extern int ptrace_setfpregs;
737   extern int ptrace_getfpxregs;
738   extern int ptrace_setfpxregs;
739   extern int ptrace_getsiginfo;
740   extern int ptrace_setsiginfo;
741   extern int ptrace_getregset;
742   extern int ptrace_setregset;
743   extern int ptrace_geteventmsg;
744 #endif
745 
746 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
747   extern unsigned struct_shminfo_sz;
748   extern unsigned struct_shm_info_sz;
749   extern int shmctl_ipc_stat;
750   extern int shmctl_ipc_info;
751   extern int shmctl_shm_info;
752   extern int shmctl_shm_stat;
753 #endif
754 
755   extern int map_fixed;
756 
757   // ioctl arguments
758   struct __sanitizer_ifconf {
759     int ifc_len;
760     union {
761       void *ifcu_req;
762     } ifc_ifcu;
763 #if SANITIZER_MAC
764   } __attribute__((packed));
765 #else
766   };
767 #endif
768 
769 #if SANITIZER_LINUX && !SANITIZER_ANDROID
770 struct __sanitizer__obstack_chunk {
771   char *limit;
772   struct __sanitizer__obstack_chunk *prev;
773 };
774 
775 struct __sanitizer_obstack {
776   long chunk_size;
777   struct __sanitizer__obstack_chunk *chunk;
778   char *object_base;
779   char *next_free;
780   uptr more_fields[7];
781 };
782 
783 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
784 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
785                                             uptr size);
786 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
787                                           int whence);
788 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
789 
790 struct __sanitizer_cookie_io_functions_t {
791   __sanitizer_cookie_io_read read;
792   __sanitizer_cookie_io_write write;
793   __sanitizer_cookie_io_seek seek;
794   __sanitizer_cookie_io_close close;
795 };
796 #endif
797 
798 #define IOC_NRBITS 8
799 #define IOC_TYPEBITS 8
800 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__)
801 #define IOC_SIZEBITS 13
802 #define IOC_DIRBITS 3
803 #define IOC_NONE 1U
804 #define IOC_WRITE 4U
805 #define IOC_READ 2U
806 #else
807 #define IOC_SIZEBITS 14
808 #define IOC_DIRBITS 2
809 #define IOC_NONE 0U
810 #define IOC_WRITE 1U
811 #define IOC_READ 2U
812 #endif
813 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
814 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
815 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
816 #if defined(IOC_DIRMASK)
817 #undef IOC_DIRMASK
818 #endif
819 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
820 #define IOC_NRSHIFT 0
821 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
822 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
823 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
824 #define EVIOC_EV_MAX 0x1f
825 #define EVIOC_ABS_MAX 0x3f
826 
827 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
828 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
829 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
830 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
831 
832   extern unsigned struct_ifreq_sz;
833   extern unsigned struct_termios_sz;
834   extern unsigned struct_winsize_sz;
835 
836 #if SANITIZER_LINUX
837   extern unsigned struct_arpreq_sz;
838   extern unsigned struct_cdrom_msf_sz;
839   extern unsigned struct_cdrom_multisession_sz;
840   extern unsigned struct_cdrom_read_audio_sz;
841   extern unsigned struct_cdrom_subchnl_sz;
842   extern unsigned struct_cdrom_ti_sz;
843   extern unsigned struct_cdrom_tocentry_sz;
844   extern unsigned struct_cdrom_tochdr_sz;
845   extern unsigned struct_cdrom_volctrl_sz;
846   extern unsigned struct_ff_effect_sz;
847   extern unsigned struct_floppy_drive_params_sz;
848   extern unsigned struct_floppy_drive_struct_sz;
849   extern unsigned struct_floppy_fdc_state_sz;
850   extern unsigned struct_floppy_max_errors_sz;
851   extern unsigned struct_floppy_raw_cmd_sz;
852   extern unsigned struct_floppy_struct_sz;
853   extern unsigned struct_floppy_write_errors_sz;
854   extern unsigned struct_format_descr_sz;
855   extern unsigned struct_hd_driveid_sz;
856   extern unsigned struct_hd_geometry_sz;
857   extern unsigned struct_input_absinfo_sz;
858   extern unsigned struct_input_id_sz;
859   extern unsigned struct_mtpos_sz;
860   extern unsigned struct_termio_sz;
861   extern unsigned struct_vt_consize_sz;
862   extern unsigned struct_vt_sizes_sz;
863   extern unsigned struct_vt_stat_sz;
864 #endif  // SANITIZER_LINUX
865 
866 #if SANITIZER_LINUX || SANITIZER_FREEBSD
867   extern unsigned struct_copr_buffer_sz;
868   extern unsigned struct_copr_debug_buf_sz;
869   extern unsigned struct_copr_msg_sz;
870   extern unsigned struct_midi_info_sz;
871   extern unsigned struct_mtget_sz;
872   extern unsigned struct_mtop_sz;
873   extern unsigned struct_rtentry_sz;
874   extern unsigned struct_sbi_instrument_sz;
875   extern unsigned struct_seq_event_rec_sz;
876   extern unsigned struct_synth_info_sz;
877   extern unsigned struct_vt_mode_sz;
878 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
879 
880 #if SANITIZER_LINUX && !SANITIZER_ANDROID
881   extern unsigned struct_ax25_parms_struct_sz;
882   extern unsigned struct_cyclades_monitor_sz;
883   extern unsigned struct_input_keymap_entry_sz;
884   extern unsigned struct_ipx_config_data_sz;
885   extern unsigned struct_kbdiacrs_sz;
886   extern unsigned struct_kbentry_sz;
887   extern unsigned struct_kbkeycode_sz;
888   extern unsigned struct_kbsentry_sz;
889   extern unsigned struct_mtconfiginfo_sz;
890   extern unsigned struct_nr_parms_struct_sz;
891   extern unsigned struct_scc_modem_sz;
892   extern unsigned struct_scc_stat_sz;
893   extern unsigned struct_serial_multiport_struct_sz;
894   extern unsigned struct_serial_struct_sz;
895   extern unsigned struct_sockaddr_ax25_sz;
896   extern unsigned struct_unimapdesc_sz;
897   extern unsigned struct_unimapinit_sz;
898 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
899 
900 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
901   extern unsigned struct_audio_buf_info_sz;
902   extern unsigned struct_ppp_stats_sz;
903 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
904 
905 #if !SANITIZER_ANDROID && !SANITIZER_MAC
906   extern unsigned struct_sioc_sg_req_sz;
907   extern unsigned struct_sioc_vif_req_sz;
908 #endif
909 
910   // ioctl request identifiers
911 
912   // A special value to mark ioctls that are not present on the target platform,
913   // when it can not be determined without including any system headers.
914   extern const unsigned IOCTL_NOT_PRESENT;
915 
916   extern unsigned IOCTL_FIOASYNC;
917   extern unsigned IOCTL_FIOCLEX;
918   extern unsigned IOCTL_FIOGETOWN;
919   extern unsigned IOCTL_FIONBIO;
920   extern unsigned IOCTL_FIONCLEX;
921   extern unsigned IOCTL_FIOSETOWN;
922   extern unsigned IOCTL_SIOCADDMULTI;
923   extern unsigned IOCTL_SIOCATMARK;
924   extern unsigned IOCTL_SIOCDELMULTI;
925   extern unsigned IOCTL_SIOCGIFADDR;
926   extern unsigned IOCTL_SIOCGIFBRDADDR;
927   extern unsigned IOCTL_SIOCGIFCONF;
928   extern unsigned IOCTL_SIOCGIFDSTADDR;
929   extern unsigned IOCTL_SIOCGIFFLAGS;
930   extern unsigned IOCTL_SIOCGIFMETRIC;
931   extern unsigned IOCTL_SIOCGIFMTU;
932   extern unsigned IOCTL_SIOCGIFNETMASK;
933   extern unsigned IOCTL_SIOCGPGRP;
934   extern unsigned IOCTL_SIOCSIFADDR;
935   extern unsigned IOCTL_SIOCSIFBRDADDR;
936   extern unsigned IOCTL_SIOCSIFDSTADDR;
937   extern unsigned IOCTL_SIOCSIFFLAGS;
938   extern unsigned IOCTL_SIOCSIFMETRIC;
939   extern unsigned IOCTL_SIOCSIFMTU;
940   extern unsigned IOCTL_SIOCSIFNETMASK;
941   extern unsigned IOCTL_SIOCSPGRP;
942   extern unsigned IOCTL_TIOCCONS;
943   extern unsigned IOCTL_TIOCEXCL;
944   extern unsigned IOCTL_TIOCGETD;
945   extern unsigned IOCTL_TIOCGPGRP;
946   extern unsigned IOCTL_TIOCGWINSZ;
947   extern unsigned IOCTL_TIOCMBIC;
948   extern unsigned IOCTL_TIOCMBIS;
949   extern unsigned IOCTL_TIOCMGET;
950   extern unsigned IOCTL_TIOCMSET;
951   extern unsigned IOCTL_TIOCNOTTY;
952   extern unsigned IOCTL_TIOCNXCL;
953   extern unsigned IOCTL_TIOCOUTQ;
954   extern unsigned IOCTL_TIOCPKT;
955   extern unsigned IOCTL_TIOCSCTTY;
956   extern unsigned IOCTL_TIOCSETD;
957   extern unsigned IOCTL_TIOCSPGRP;
958   extern unsigned IOCTL_TIOCSTI;
959   extern unsigned IOCTL_TIOCSWINSZ;
960 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
961   extern unsigned IOCTL_SIOCGETSGCNT;
962   extern unsigned IOCTL_SIOCGETVIFCNT;
963 #endif
964 #if SANITIZER_LINUX
965   extern unsigned IOCTL_EVIOCGABS;
966   extern unsigned IOCTL_EVIOCGBIT;
967   extern unsigned IOCTL_EVIOCGEFFECTS;
968   extern unsigned IOCTL_EVIOCGID;
969   extern unsigned IOCTL_EVIOCGKEY;
970   extern unsigned IOCTL_EVIOCGKEYCODE;
971   extern unsigned IOCTL_EVIOCGLED;
972   extern unsigned IOCTL_EVIOCGNAME;
973   extern unsigned IOCTL_EVIOCGPHYS;
974   extern unsigned IOCTL_EVIOCGRAB;
975   extern unsigned IOCTL_EVIOCGREP;
976   extern unsigned IOCTL_EVIOCGSND;
977   extern unsigned IOCTL_EVIOCGSW;
978   extern unsigned IOCTL_EVIOCGUNIQ;
979   extern unsigned IOCTL_EVIOCGVERSION;
980   extern unsigned IOCTL_EVIOCRMFF;
981   extern unsigned IOCTL_EVIOCSABS;
982   extern unsigned IOCTL_EVIOCSFF;
983   extern unsigned IOCTL_EVIOCSKEYCODE;
984   extern unsigned IOCTL_EVIOCSREP;
985   extern unsigned IOCTL_BLKFLSBUF;
986   extern unsigned IOCTL_BLKGETSIZE;
987   extern unsigned IOCTL_BLKRAGET;
988   extern unsigned IOCTL_BLKRASET;
989   extern unsigned IOCTL_BLKROGET;
990   extern unsigned IOCTL_BLKROSET;
991   extern unsigned IOCTL_BLKRRPART;
992   extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
993   extern unsigned IOCTL_CDROMEJECT;
994   extern unsigned IOCTL_CDROMEJECT_SW;
995   extern unsigned IOCTL_CDROMMULTISESSION;
996   extern unsigned IOCTL_CDROMPAUSE;
997   extern unsigned IOCTL_CDROMPLAYMSF;
998   extern unsigned IOCTL_CDROMPLAYTRKIND;
999   extern unsigned IOCTL_CDROMREADAUDIO;
1000   extern unsigned IOCTL_CDROMREADCOOKED;
1001   extern unsigned IOCTL_CDROMREADMODE1;
1002   extern unsigned IOCTL_CDROMREADMODE2;
1003   extern unsigned IOCTL_CDROMREADRAW;
1004   extern unsigned IOCTL_CDROMREADTOCENTRY;
1005   extern unsigned IOCTL_CDROMREADTOCHDR;
1006   extern unsigned IOCTL_CDROMRESET;
1007   extern unsigned IOCTL_CDROMRESUME;
1008   extern unsigned IOCTL_CDROMSEEK;
1009   extern unsigned IOCTL_CDROMSTART;
1010   extern unsigned IOCTL_CDROMSTOP;
1011   extern unsigned IOCTL_CDROMSUBCHNL;
1012   extern unsigned IOCTL_CDROMVOLCTRL;
1013   extern unsigned IOCTL_CDROMVOLREAD;
1014   extern unsigned IOCTL_CDROM_GET_UPC;
1015   extern unsigned IOCTL_FDCLRPRM;
1016   extern unsigned IOCTL_FDDEFPRM;
1017   extern unsigned IOCTL_FDFLUSH;
1018   extern unsigned IOCTL_FDFMTBEG;
1019   extern unsigned IOCTL_FDFMTEND;
1020   extern unsigned IOCTL_FDFMTTRK;
1021   extern unsigned IOCTL_FDGETDRVPRM;
1022   extern unsigned IOCTL_FDGETDRVSTAT;
1023   extern unsigned IOCTL_FDGETDRVTYP;
1024   extern unsigned IOCTL_FDGETFDCSTAT;
1025   extern unsigned IOCTL_FDGETMAXERRS;
1026   extern unsigned IOCTL_FDGETPRM;
1027   extern unsigned IOCTL_FDMSGOFF;
1028   extern unsigned IOCTL_FDMSGON;
1029   extern unsigned IOCTL_FDPOLLDRVSTAT;
1030   extern unsigned IOCTL_FDRAWCMD;
1031   extern unsigned IOCTL_FDRESET;
1032   extern unsigned IOCTL_FDSETDRVPRM;
1033   extern unsigned IOCTL_FDSETEMSGTRESH;
1034   extern unsigned IOCTL_FDSETMAXERRS;
1035   extern unsigned IOCTL_FDSETPRM;
1036   extern unsigned IOCTL_FDTWADDLE;
1037   extern unsigned IOCTL_FDWERRORCLR;
1038   extern unsigned IOCTL_FDWERRORGET;
1039   extern unsigned IOCTL_HDIO_DRIVE_CMD;
1040   extern unsigned IOCTL_HDIO_GETGEO;
1041   extern unsigned IOCTL_HDIO_GET_32BIT;
1042   extern unsigned IOCTL_HDIO_GET_DMA;
1043   extern unsigned IOCTL_HDIO_GET_IDENTITY;
1044   extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1045   extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1046   extern unsigned IOCTL_HDIO_GET_NOWERR;
1047   extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1048   extern unsigned IOCTL_HDIO_SET_32BIT;
1049   extern unsigned IOCTL_HDIO_SET_DMA;
1050   extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1051   extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1052   extern unsigned IOCTL_HDIO_SET_NOWERR;
1053   extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1054   extern unsigned IOCTL_MTIOCPOS;
1055   extern unsigned IOCTL_PPPIOCGASYNCMAP;
1056   extern unsigned IOCTL_PPPIOCGDEBUG;
1057   extern unsigned IOCTL_PPPIOCGFLAGS;
1058   extern unsigned IOCTL_PPPIOCGUNIT;
1059   extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1060   extern unsigned IOCTL_PPPIOCSASYNCMAP;
1061   extern unsigned IOCTL_PPPIOCSDEBUG;
1062   extern unsigned IOCTL_PPPIOCSFLAGS;
1063   extern unsigned IOCTL_PPPIOCSMAXCID;
1064   extern unsigned IOCTL_PPPIOCSMRU;
1065   extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1066   extern unsigned IOCTL_SIOCDARP;
1067   extern unsigned IOCTL_SIOCDRARP;
1068   extern unsigned IOCTL_SIOCGARP;
1069   extern unsigned IOCTL_SIOCGIFENCAP;
1070   extern unsigned IOCTL_SIOCGIFHWADDR;
1071   extern unsigned IOCTL_SIOCGIFMAP;
1072   extern unsigned IOCTL_SIOCGIFMEM;
1073   extern unsigned IOCTL_SIOCGIFNAME;
1074   extern unsigned IOCTL_SIOCGIFSLAVE;
1075   extern unsigned IOCTL_SIOCGRARP;
1076   extern unsigned IOCTL_SIOCGSTAMP;
1077   extern unsigned IOCTL_SIOCSARP;
1078   extern unsigned IOCTL_SIOCSIFENCAP;
1079   extern unsigned IOCTL_SIOCSIFHWADDR;
1080   extern unsigned IOCTL_SIOCSIFLINK;
1081   extern unsigned IOCTL_SIOCSIFMAP;
1082   extern unsigned IOCTL_SIOCSIFMEM;
1083   extern unsigned IOCTL_SIOCSIFSLAVE;
1084   extern unsigned IOCTL_SIOCSRARP;
1085   extern unsigned IOCTL_SNDCTL_COPR_HALT;
1086   extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1087   extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1088   extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1089   extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1090   extern unsigned IOCTL_SNDCTL_COPR_RESET;
1091   extern unsigned IOCTL_SNDCTL_COPR_RUN;
1092   extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1093   extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1094   extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1095   extern unsigned IOCTL_TCFLSH;
1096   extern unsigned IOCTL_TCGETA;
1097   extern unsigned IOCTL_TCGETS;
1098   extern unsigned IOCTL_TCSBRK;
1099   extern unsigned IOCTL_TCSBRKP;
1100   extern unsigned IOCTL_TCSETA;
1101   extern unsigned IOCTL_TCSETAF;
1102   extern unsigned IOCTL_TCSETAW;
1103   extern unsigned IOCTL_TCSETS;
1104   extern unsigned IOCTL_TCSETSF;
1105   extern unsigned IOCTL_TCSETSW;
1106   extern unsigned IOCTL_TCXONC;
1107   extern unsigned IOCTL_TIOCGLCKTRMIOS;
1108   extern unsigned IOCTL_TIOCGSOFTCAR;
1109   extern unsigned IOCTL_TIOCINQ;
1110   extern unsigned IOCTL_TIOCLINUX;
1111   extern unsigned IOCTL_TIOCSERCONFIG;
1112   extern unsigned IOCTL_TIOCSERGETLSR;
1113   extern unsigned IOCTL_TIOCSERGWILD;
1114   extern unsigned IOCTL_TIOCSERSWILD;
1115   extern unsigned IOCTL_TIOCSLCKTRMIOS;
1116   extern unsigned IOCTL_TIOCSSOFTCAR;
1117   extern unsigned IOCTL_VT_DISALLOCATE;
1118   extern unsigned IOCTL_VT_GETSTATE;
1119   extern unsigned IOCTL_VT_RESIZE;
1120   extern unsigned IOCTL_VT_RESIZEX;
1121   extern unsigned IOCTL_VT_SENDSIG;
1122 #endif  // SANITIZER_LINUX
1123 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1124   extern unsigned IOCTL_MTIOCGET;
1125   extern unsigned IOCTL_MTIOCTOP;
1126   extern unsigned IOCTL_SIOCADDRT;
1127   extern unsigned IOCTL_SIOCDELRT;
1128   extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1129   extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1130   extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1131   extern unsigned IOCTL_SNDCTL_DSP_POST;
1132   extern unsigned IOCTL_SNDCTL_DSP_RESET;
1133   extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1134   extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1135   extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1136   extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1137   extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1138   extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1139   extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1140   extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1141   extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1142   extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1143   extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1144   extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1145   extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1146   extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1147   extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1148   extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1149   extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1150   extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1151   extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1152   extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1153   extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1154   extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1155   extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1156   extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1157   extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1158   extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1159   extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1160   extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1161   extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1162   extern unsigned IOCTL_SNDCTL_TMR_START;
1163   extern unsigned IOCTL_SNDCTL_TMR_STOP;
1164   extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1165   extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1166   extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1167   extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1168   extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1169   extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1170   extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1171   extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1172   extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1173   extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1174   extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1175   extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1176   extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1177   extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1178   extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1179   extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1180   extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1181   extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1182   extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1183   extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1184   extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1185   extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1186   extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1187   extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1188   extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1189   extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1190   extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1191   extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1192   extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1193   extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1194   extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1195   extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1196   extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1197   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1198   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1199   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1200   extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1201   extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1202   extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1203   extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1204   extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1205   extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1206   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1207   extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1208   extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1209   extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1210   extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1211   extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1212   extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1213   extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1214   extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1215   extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1216   extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1217   extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1218   extern unsigned IOCTL_VT_ACTIVATE;
1219   extern unsigned IOCTL_VT_GETMODE;
1220   extern unsigned IOCTL_VT_OPENQRY;
1221   extern unsigned IOCTL_VT_RELDISP;
1222   extern unsigned IOCTL_VT_SETMODE;
1223   extern unsigned IOCTL_VT_WAITACTIVE;
1224 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
1225 
1226 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1227   extern unsigned IOCTL_CYGETDEFTHRESH;
1228   extern unsigned IOCTL_CYGETDEFTIMEOUT;
1229   extern unsigned IOCTL_CYGETMON;
1230   extern unsigned IOCTL_CYGETTHRESH;
1231   extern unsigned IOCTL_CYGETTIMEOUT;
1232   extern unsigned IOCTL_CYSETDEFTHRESH;
1233   extern unsigned IOCTL_CYSETDEFTIMEOUT;
1234   extern unsigned IOCTL_CYSETTHRESH;
1235   extern unsigned IOCTL_CYSETTIMEOUT;
1236   extern unsigned IOCTL_EQL_EMANCIPATE;
1237   extern unsigned IOCTL_EQL_ENSLAVE;
1238   extern unsigned IOCTL_EQL_GETMASTRCFG;
1239   extern unsigned IOCTL_EQL_GETSLAVECFG;
1240   extern unsigned IOCTL_EQL_SETMASTRCFG;
1241   extern unsigned IOCTL_EQL_SETSLAVECFG;
1242   extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1243   extern unsigned IOCTL_EVIOCGPROP;
1244   extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1245   extern unsigned IOCTL_FS_IOC_GETFLAGS;
1246   extern unsigned IOCTL_FS_IOC_GETVERSION;
1247   extern unsigned IOCTL_FS_IOC_SETFLAGS;
1248   extern unsigned IOCTL_FS_IOC_SETVERSION;
1249   extern unsigned IOCTL_GIO_CMAP;
1250   extern unsigned IOCTL_GIO_FONT;
1251   extern unsigned IOCTL_GIO_UNIMAP;
1252   extern unsigned IOCTL_GIO_UNISCRNMAP;
1253   extern unsigned IOCTL_KDADDIO;
1254   extern unsigned IOCTL_KDDELIO;
1255   extern unsigned IOCTL_KDGETKEYCODE;
1256   extern unsigned IOCTL_KDGKBDIACR;
1257   extern unsigned IOCTL_KDGKBENT;
1258   extern unsigned IOCTL_KDGKBLED;
1259   extern unsigned IOCTL_KDGKBMETA;
1260   extern unsigned IOCTL_KDGKBSENT;
1261   extern unsigned IOCTL_KDMAPDISP;
1262   extern unsigned IOCTL_KDSETKEYCODE;
1263   extern unsigned IOCTL_KDSIGACCEPT;
1264   extern unsigned IOCTL_KDSKBDIACR;
1265   extern unsigned IOCTL_KDSKBENT;
1266   extern unsigned IOCTL_KDSKBLED;
1267   extern unsigned IOCTL_KDSKBMETA;
1268   extern unsigned IOCTL_KDSKBSENT;
1269   extern unsigned IOCTL_KDUNMAPDISP;
1270   extern unsigned IOCTL_LPABORT;
1271   extern unsigned IOCTL_LPABORTOPEN;
1272   extern unsigned IOCTL_LPCAREFUL;
1273   extern unsigned IOCTL_LPCHAR;
1274   extern unsigned IOCTL_LPGETIRQ;
1275   extern unsigned IOCTL_LPGETSTATUS;
1276   extern unsigned IOCTL_LPRESET;
1277   extern unsigned IOCTL_LPSETIRQ;
1278   extern unsigned IOCTL_LPTIME;
1279   extern unsigned IOCTL_LPWAIT;
1280   extern unsigned IOCTL_MTIOCGETCONFIG;
1281   extern unsigned IOCTL_MTIOCSETCONFIG;
1282   extern unsigned IOCTL_PIO_CMAP;
1283   extern unsigned IOCTL_PIO_FONT;
1284   extern unsigned IOCTL_PIO_UNIMAP;
1285   extern unsigned IOCTL_PIO_UNIMAPCLR;
1286   extern unsigned IOCTL_PIO_UNISCRNMAP;
1287   extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1288   extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1289   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1290   extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1291   extern unsigned IOCTL_SIOCAIPXITFCRT;
1292   extern unsigned IOCTL_SIOCAIPXPRISLT;
1293   extern unsigned IOCTL_SIOCAX25ADDUID;
1294   extern unsigned IOCTL_SIOCAX25DELUID;
1295   extern unsigned IOCTL_SIOCAX25GETPARMS;
1296   extern unsigned IOCTL_SIOCAX25GETUID;
1297   extern unsigned IOCTL_SIOCAX25NOUID;
1298   extern unsigned IOCTL_SIOCAX25SETPARMS;
1299   extern unsigned IOCTL_SIOCDEVPLIP;
1300   extern unsigned IOCTL_SIOCIPXCFGDATA;
1301   extern unsigned IOCTL_SIOCNRDECOBS;
1302   extern unsigned IOCTL_SIOCNRGETPARMS;
1303   extern unsigned IOCTL_SIOCNRRTCTL;
1304   extern unsigned IOCTL_SIOCNRSETPARMS;
1305   extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1306   extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1307   extern unsigned IOCTL_TIOCGSERIAL;
1308   extern unsigned IOCTL_TIOCSERGETMULTI;
1309   extern unsigned IOCTL_TIOCSERSETMULTI;
1310   extern unsigned IOCTL_TIOCSSERIAL;
1311 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1312 
1313 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1314   extern unsigned IOCTL_GIO_SCRNMAP;
1315   extern unsigned IOCTL_KDDISABIO;
1316   extern unsigned IOCTL_KDENABIO;
1317   extern unsigned IOCTL_KDGETLED;
1318   extern unsigned IOCTL_KDGETMODE;
1319   extern unsigned IOCTL_KDGKBMODE;
1320   extern unsigned IOCTL_KDGKBTYPE;
1321   extern unsigned IOCTL_KDMKTONE;
1322   extern unsigned IOCTL_KDSETLED;
1323   extern unsigned IOCTL_KDSETMODE;
1324   extern unsigned IOCTL_KDSKBMODE;
1325   extern unsigned IOCTL_KIOCSOUND;
1326   extern unsigned IOCTL_PIO_SCRNMAP;
1327 #endif
1328 
1329   extern const int errno_EINVAL;
1330   extern const int errno_EOWNERDEAD;
1331 
1332   extern const int si_SEGV_MAPERR;
1333   extern const int si_SEGV_ACCERR;
1334 }  // namespace __sanitizer
1335 
1336 #define CHECK_TYPE_SIZE(TYPE) \
1337   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1338 
1339 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1340   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
1341                  sizeof(((CLASS *) NULL)->MEMBER));                \
1342   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
1343                  offsetof(CLASS, MEMBER))
1344 
1345 // For sigaction, which is a function and struct at the same time,
1346 // and thus requires explicit "struct" in sizeof() expression.
1347 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                       \
1348   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
1349                  sizeof(((struct CLASS *) NULL)->MEMBER));                \
1350   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==          \
1351                  offsetof(struct CLASS, MEMBER))
1352 
1353 #endif
1354