1 //===-- sanitizer_platform_limits_posix.h ---------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of Sanitizer common code.
10 //
11 // Sizes and layouts of platform-specific POSIX data structures.
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
15 #define SANITIZER_PLATFORM_LIMITS_POSIX_H
16 
17 #if SANITIZER_LINUX || SANITIZER_APPLE
18 
19 #include "sanitizer_internal_defs.h"
20 #include "sanitizer_platform.h"
21 
22 #if SANITIZER_APPLE
23 #include <sys/cdefs.h>
24 #if !__DARWIN_ONLY_64_BIT_INO_T
25 #define SANITIZER_HAS_STAT64 1
26 #define SANITIZER_HAS_STATFS64 1
27 #else
28 #define SANITIZER_HAS_STAT64 0
29 #define SANITIZER_HAS_STATFS64 0
30 #endif
31 #else
32 // Must be SANITIZER_LINUX then
33 #define SANITIZER_HAS_STAT64 1
34 #define SANITIZER_HAS_STATFS64 1
35 #endif
36 
37 #if defined(__sparc__)
38 // FIXME: This can't be included from tsan which does not support sparc yet.
39 #include "sanitizer_glibc_version.h"
40 #endif
41 
42 # define GET_LINK_MAP_BY_DLOPEN_HANDLE(handle) ((link_map*)(handle))
43 
44 namespace __sanitizer {
45 extern unsigned struct_utsname_sz;
46 extern unsigned struct_stat_sz;
47 #if SANITIZER_HAS_STAT64
48 extern unsigned struct_stat64_sz;
49 #endif
50 extern unsigned struct_rusage_sz;
51 extern unsigned siginfo_t_sz;
52 extern unsigned struct_itimerval_sz;
53 extern unsigned pthread_t_sz;
54 extern unsigned pthread_mutex_t_sz;
55 extern unsigned pthread_cond_t_sz;
56 extern unsigned pid_t_sz;
57 extern unsigned timeval_sz;
58 extern unsigned uid_t_sz;
59 extern unsigned gid_t_sz;
60 extern unsigned mbstate_t_sz;
61 extern unsigned struct_timezone_sz;
62 extern unsigned struct_tms_sz;
63 extern unsigned struct_itimerspec_sz;
64 extern unsigned struct_sigevent_sz;
65 extern unsigned struct_stack_t_sz;
66 extern unsigned struct_sched_param_sz;
67 #if SANITIZER_HAS_STATFS64
68 extern unsigned struct_statfs64_sz;
69 #endif
70 extern unsigned struct_regex_sz;
71 extern unsigned struct_regmatch_sz;
72 
73 #if !SANITIZER_ANDROID
74 extern unsigned struct_fstab_sz;
75 extern unsigned struct_statfs_sz;
76 extern unsigned struct_sockaddr_sz;
77 unsigned ucontext_t_sz(void *uctx);
78 #  endif  // !SANITIZER_ANDROID
79 
80 #  if SANITIZER_LINUX
81 
82 #    if defined(__x86_64__)
83 const unsigned struct_kernel_stat_sz = 144;
84 const unsigned struct_kernel_stat64_sz = 0;
85 #elif defined(__i386__)
86 const unsigned struct_kernel_stat_sz = 64;
87 const unsigned struct_kernel_stat64_sz = 96;
88 #elif defined(__arm__)
89 const unsigned struct_kernel_stat_sz = 64;
90 const unsigned struct_kernel_stat64_sz = 104;
91 #elif defined(__aarch64__)
92 const unsigned struct_kernel_stat_sz = 128;
93 const unsigned struct_kernel_stat64_sz = 104;
94 #elif defined(__powerpc__) && !defined(__powerpc64__)
95 const unsigned struct_kernel_stat_sz = 72;
96 const unsigned struct_kernel_stat64_sz = 104;
97 #elif defined(__powerpc64__)
98 const unsigned struct_kernel_stat_sz = 144;
99 const unsigned struct_kernel_stat64_sz = 104;
100 #elif defined(__mips__)
101 const unsigned struct_kernel_stat_sz =
102     SANITIZER_ANDROID
103         ? FIRST_32_SECOND_64(104, 128)
104         : FIRST_32_SECOND_64((_MIPS_SIM == _ABIN32) ? 160 : 144, 216);
105 const unsigned struct_kernel_stat64_sz = 104;
106 #elif defined(__s390__) && !defined(__s390x__)
107 const unsigned struct_kernel_stat_sz = 64;
108 const unsigned struct_kernel_stat64_sz = 104;
109 #elif defined(__s390x__)
110 const unsigned struct_kernel_stat_sz = 144;
111 const unsigned struct_kernel_stat64_sz = 0;
112 #elif defined(__sparc__) && defined(__arch64__)
113 const unsigned struct___old_kernel_stat_sz = 0;
114 const unsigned struct_kernel_stat_sz = 104;
115 const unsigned struct_kernel_stat64_sz = 144;
116 #elif defined(__sparc__) && !defined(__arch64__)
117 const unsigned struct___old_kernel_stat_sz = 0;
118 const unsigned struct_kernel_stat_sz = 64;
119 const unsigned struct_kernel_stat64_sz = 104;
120 #elif SANITIZER_RISCV64
121 const unsigned struct_kernel_stat_sz = 128;
122 const unsigned struct_kernel_stat64_sz = 0;  // RISCV64 does not use stat64
123 #    elif defined(__hexagon__)
124 const unsigned struct_kernel_stat_sz = 128;
125 const unsigned struct_kernel_stat64_sz = 0;
126 #    elif defined(__loongarch__)
127 const unsigned struct_kernel_stat_sz = 128;
128 const unsigned struct_kernel_stat64_sz = 0;
129 #    endif
130 struct __sanitizer_perf_event_attr {
131   unsigned type;
132   unsigned size;
133   // More fields that vary with the kernel version.
134 };
135 
136 extern unsigned struct_epoll_event_sz;
137 extern unsigned struct_sysinfo_sz;
138 extern unsigned __user_cap_header_struct_sz;
139 extern unsigned __user_cap_data_struct_sz;
140 extern unsigned struct_new_utsname_sz;
141 extern unsigned struct_old_utsname_sz;
142 extern unsigned struct_oldold_utsname_sz;
143 
144 const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
145 #endif  // SANITIZER_LINUX
146 
147 #if SANITIZER_LINUX
148 
149 #if defined(__powerpc64__) || defined(__s390__) || defined(__loongarch__) || \
150     defined(__riscv)
151 const unsigned struct___old_kernel_stat_sz = 0;
152 #elif !defined(__sparc__)
153 const unsigned struct___old_kernel_stat_sz = 32;
154 #endif
155 
156 extern unsigned struct_rlimit_sz;
157 extern unsigned struct_utimbuf_sz;
158 extern unsigned struct_timespec_sz;
159 
160 struct __sanitizer_iocb {
161   u64 aio_data;
162   u32 aio_key_or_aio_reserved1;  // Simply crazy.
163   u32 aio_reserved1_or_aio_key;  // Luckily, we don't need these.
164   u16 aio_lio_opcode;
165   s16 aio_reqprio;
166   u32 aio_fildes;
167   u64 aio_buf;
168   u64 aio_nbytes;
169   s64 aio_offset;
170   u64 aio_reserved2;
171   u64 aio_reserved3;
172 };
173 
174 struct __sanitizer_io_event {
175   u64 data;
176   u64 obj;
177   u64 res;
178   u64 res2;
179 };
180 
181 const unsigned iocb_cmd_pread = 0;
182 const unsigned iocb_cmd_pwrite = 1;
183 const unsigned iocb_cmd_preadv = 7;
184 const unsigned iocb_cmd_pwritev = 8;
185 
186 struct __sanitizer___sysctl_args {
187   int *name;
188   int nlen;
189   void *oldval;
190   uptr *oldlenp;
191   void *newval;
192   uptr newlen;
193   unsigned long ___unused[4];
194 };
195 
196 const unsigned old_sigset_t_sz = sizeof(unsigned long);
197 
198 struct __sanitizer_sem_t {
199 #if SANITIZER_ANDROID && defined(_LP64)
200   int data[4];
201 #elif SANITIZER_ANDROID && !defined(_LP64)
202   int data;
203 #elif SANITIZER_LINUX
204   uptr data[4];
205 #endif
206 };
207 #endif // SANITIZER_LINUX
208 
209 #if SANITIZER_ANDROID
210 struct __sanitizer_struct_mallinfo {
211   uptr v[10];
212 };
213 #endif
214 
215 #if SANITIZER_LINUX && !SANITIZER_ANDROID
216 struct __sanitizer_struct_mallinfo {
217   int v[10];
218 };
219 
220 extern unsigned struct_ustat_sz;
221 extern unsigned struct_rlimit64_sz;
222 extern unsigned struct_statvfs64_sz;
223 
224 struct __sanitizer_ipc_perm {
225   int __key;
226   int uid;
227   int gid;
228   int cuid;
229   int cgid;
230 #ifdef __powerpc__
231   unsigned mode;
232   unsigned __seq;
233   u64 __unused1;
234   u64 __unused2;
235 #elif defined(__sparc__)
236   unsigned mode;
237   unsigned short __pad2;
238   unsigned short __seq;
239   unsigned long long __unused1;
240   unsigned long long __unused2;
241 #else
242   unsigned int mode;
243   unsigned short __seq;
244   unsigned short __pad2;
245 #if defined(__x86_64__) && !defined(_LP64)
246   u64 __unused1;
247   u64 __unused2;
248 #else
249   unsigned long __unused1;
250   unsigned long __unused2;
251 #endif
252 #endif
253 };
254 
255 struct __sanitizer_shmid_ds {
256   __sanitizer_ipc_perm shm_perm;
257 #if defined(__sparc__)
258 #if !defined(__arch64__)
259   u32 __pad1;
260 #endif
261   long shm_atime;
262 #if !defined(__arch64__)
263   u32 __pad2;
264 #endif
265   long shm_dtime;
266 #if !defined(__arch64__)
267   u32 __pad3;
268 #endif
269   long shm_ctime;
270   uptr shm_segsz;
271   int shm_cpid;
272   int shm_lpid;
273   unsigned long shm_nattch;
274   unsigned long __glibc_reserved1;
275   unsigned long __glibc_reserved2;
276 #else
277 #ifndef __powerpc__
278   uptr shm_segsz;
279 #elif !defined(__powerpc64__)
280   uptr __unused0;
281 #endif
282 #if defined(__x86_64__) && !defined(_LP64)
283   u64 shm_atime;
284   u64 shm_dtime;
285   u64 shm_ctime;
286 #else
287   uptr shm_atime;
288 #if !defined(_LP64) && !defined(__mips__)
289   uptr __unused1;
290 #endif
291   uptr shm_dtime;
292 #if !defined(_LP64) && !defined(__mips__)
293   uptr __unused2;
294 #endif
295   uptr shm_ctime;
296 #if !defined(_LP64) && !defined(__mips__)
297   uptr __unused3;
298 #endif
299 #endif
300 #ifdef __powerpc__
301   uptr shm_segsz;
302 #endif
303   int shm_cpid;
304   int shm_lpid;
305 #if defined(__x86_64__) && !defined(_LP64)
306   u64 shm_nattch;
307   u64 __unused4;
308   u64 __unused5;
309 #else
310   uptr shm_nattch;
311   uptr __unused4;
312   uptr __unused5;
313 #endif
314 #endif
315 };
316 #endif
317 
318 #if SANITIZER_LINUX && !SANITIZER_ANDROID
319 extern unsigned struct_msqid_ds_sz;
320 extern unsigned struct_mq_attr_sz;
321 extern unsigned struct_timex_sz;
322 extern unsigned struct_statvfs_sz;
323 extern unsigned struct_crypt_data_sz;
324 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
325 
326 struct __sanitizer_iovec {
327   void *iov_base;
328   uptr iov_len;
329 };
330 
331 #if !SANITIZER_ANDROID
332 struct __sanitizer_ifaddrs {
333   struct __sanitizer_ifaddrs *ifa_next;
334   char *ifa_name;
335   unsigned int ifa_flags;
336   void *ifa_addr;     // (struct sockaddr *)
337   void *ifa_netmask;  // (struct sockaddr *)
338   // This is a union on Linux.
339 # ifdef ifa_dstaddr
340 # undef ifa_dstaddr
341 # endif
342   void *ifa_dstaddr;  // (struct sockaddr *)
343   void *ifa_data;
344 };
345 #endif  // !SANITIZER_ANDROID
346 
347 #if SANITIZER_APPLE
348 typedef unsigned long __sanitizer_pthread_key_t;
349 #else
350 typedef unsigned __sanitizer_pthread_key_t;
351 #endif
352 
353 #if SANITIZER_LINUX && !SANITIZER_ANDROID
354 
355 struct __sanitizer_XDR {
356   int x_op;
357   void *x_ops;
358   uptr x_public;
359   uptr x_private;
360   uptr x_base;
361   unsigned x_handy;
362 };
363 
364 const int __sanitizer_XDR_ENCODE = 0;
365 const int __sanitizer_XDR_DECODE = 1;
366 const int __sanitizer_XDR_FREE = 2;
367 #endif
368 
369 struct __sanitizer_passwd {
370   char *pw_name;
371   char *pw_passwd;
372   int pw_uid;
373   int pw_gid;
374 #if SANITIZER_APPLE
375   long pw_change;
376   char *pw_class;
377 #endif
378 #if !(SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32))
379   char *pw_gecos;
380 #endif
381   char *pw_dir;
382   char *pw_shell;
383 #if SANITIZER_APPLE
384   long pw_expire;
385 #endif
386 };
387 
388 struct __sanitizer_group {
389   char *gr_name;
390   char *gr_passwd;
391   int gr_gid;
392   char **gr_mem;
393 };
394 
395 #  if (SANITIZER_LINUX && !SANITIZER_GLIBC && !SANITIZER_ANDROID) || \
396       (defined(__x86_64__) && !defined(_LP64)) || defined(__hexagon__)
397 typedef long long __sanitizer_time_t;
398 #else
399 typedef long __sanitizer_time_t;
400 #endif
401 
402 typedef long __sanitizer_suseconds_t;
403 
404 struct __sanitizer_timeval {
405   __sanitizer_time_t tv_sec;
406   __sanitizer_suseconds_t tv_usec;
407 };
408 
409 struct __sanitizer_itimerval {
410   struct __sanitizer_timeval it_interval;
411   struct __sanitizer_timeval it_value;
412 };
413 
414 struct __sanitizer_timeb {
415   __sanitizer_time_t time;
416   unsigned short millitm;
417   short timezone;
418   short dstflag;
419 };
420 
421 struct __sanitizer_ether_addr {
422   u8 octet[6];
423 };
424 
425 struct __sanitizer_tm {
426   int tm_sec;
427   int tm_min;
428   int tm_hour;
429   int tm_mday;
430   int tm_mon;
431   int tm_year;
432   int tm_wday;
433   int tm_yday;
434   int tm_isdst;
435   long int tm_gmtoff;
436   const char *tm_zone;
437 };
438 
439 #if SANITIZER_LINUX
440 struct __sanitizer_mntent {
441   char *mnt_fsname;
442   char *mnt_dir;
443   char *mnt_type;
444   char *mnt_opts;
445   int mnt_freq;
446   int mnt_passno;
447 };
448 
449 struct __sanitizer_file_handle {
450   unsigned int handle_bytes;
451   int handle_type;
452   unsigned char f_handle[1];  // variable sized
453 };
454 #endif
455 
456 #if SANITIZER_APPLE
457 struct __sanitizer_msghdr {
458   void *msg_name;
459   unsigned msg_namelen;
460   struct __sanitizer_iovec *msg_iov;
461   unsigned msg_iovlen;
462   void *msg_control;
463   unsigned msg_controllen;
464   int msg_flags;
465 };
466 struct __sanitizer_cmsghdr {
467   unsigned cmsg_len;
468   int cmsg_level;
469   int cmsg_type;
470 };
471 #else
472 // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but
473 // many implementations don't conform to the standard.
474 struct __sanitizer_msghdr {
475   void *msg_name;
476   unsigned msg_namelen;
477   struct __sanitizer_iovec *msg_iov;
478   uptr msg_iovlen;
479   void *msg_control;
480   uptr msg_controllen;
481   int msg_flags;
482 };
483 struct __sanitizer_cmsghdr {
484   uptr cmsg_len;
485   int cmsg_level;
486   int cmsg_type;
487 };
488 #endif
489 
490 #if SANITIZER_LINUX
491 struct __sanitizer_mmsghdr {
492   __sanitizer_msghdr msg_hdr;
493   unsigned int msg_len;
494 };
495 #endif
496 
497 #if SANITIZER_APPLE
498 struct __sanitizer_dirent {
499   unsigned long long d_ino;
500   unsigned long long d_seekoff;
501   unsigned short d_reclen;
502   // more fields that we don't care about
503 };
504 #  elif (SANITIZER_LINUX && !SANITIZER_GLIBC) || defined(__x86_64__) || \
505       defined(__hexagon__)
506 struct __sanitizer_dirent {
507   unsigned long long d_ino;
508   unsigned long long d_off;
509   unsigned short d_reclen;
510   // more fields that we don't care about
511 };
512 #  else
513 struct __sanitizer_dirent {
514   uptr d_ino;
515   uptr d_off;
516   unsigned short d_reclen;
517   // more fields that we don't care about
518 };
519 #  endif
520 
521 #  if SANITIZER_LINUX && !SANITIZER_ANDROID
522 struct __sanitizer_dirent64 {
523   unsigned long long d_ino;
524   unsigned long long d_off;
525   unsigned short d_reclen;
526   // more fields that we don't care about
527 };
528 #endif
529 
530 #if defined(__x86_64__) && !defined(_LP64)
531 typedef long long __sanitizer_clock_t;
532 #else
533 typedef long __sanitizer_clock_t;
534 #endif
535 
536 #if SANITIZER_LINUX
537 typedef int __sanitizer_clockid_t;
538 #endif
539 
540 #if SANITIZER_LINUX
541 #    if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__) || \
542         defined(__mips__) || defined(__hexagon__)
543 typedef unsigned __sanitizer___kernel_uid_t;
544 typedef unsigned __sanitizer___kernel_gid_t;
545 #else
546 typedef unsigned short __sanitizer___kernel_uid_t;
547 typedef unsigned short __sanitizer___kernel_gid_t;
548 #endif
549 #if defined(__x86_64__) && !defined(_LP64)
550 typedef long long __sanitizer___kernel_off_t;
551 #else
552 typedef long __sanitizer___kernel_off_t;
553 #endif
554 
555 #if defined(__powerpc__) || defined(__mips__) || defined(__riscv)
556 typedef unsigned int __sanitizer___kernel_old_uid_t;
557 typedef unsigned int __sanitizer___kernel_old_gid_t;
558 #else
559 typedef unsigned short __sanitizer___kernel_old_uid_t;
560 typedef unsigned short __sanitizer___kernel_old_gid_t;
561 #endif
562 
563 typedef long long __sanitizer___kernel_loff_t;
564 typedef struct {
565   unsigned long fds_bits[1024 / (8 * sizeof(long))];
566 } __sanitizer___kernel_fd_set;
567 #endif
568 
569 // This thing depends on the platform. We are only interested in the upper
570 // limit. Verified with a compiler assert in .cpp.
571 union __sanitizer_pthread_attr_t {
572   char size[128];
573   void *align;
574 };
575 
576 #if SANITIZER_ANDROID
577 # if SANITIZER_MIPS
578 typedef unsigned long __sanitizer_sigset_t[16 / sizeof(unsigned long)];
579 # else
580 typedef unsigned long __sanitizer_sigset_t;
581 # endif
582 #elif SANITIZER_APPLE
583 typedef unsigned __sanitizer_sigset_t;
584 #elif SANITIZER_LINUX
585 struct __sanitizer_sigset_t {
586   // The size is determined by looking at sizeof of real sigset_t on linux.
587   uptr val[128 / sizeof(uptr)];
588 };
589 #endif
590 
591 struct __sanitizer_siginfo {
592   // The size is determined by looking at sizeof of real siginfo_t on linux.
593   u64 opaque[128 / sizeof(u64)];
594 };
595 
596 using __sanitizer_sighandler_ptr = void (*)(int sig);
597 using __sanitizer_sigactionhandler_ptr = void (*)(int sig,
598                                                   __sanitizer_siginfo *siginfo,
599                                                   void *uctx);
600 
601 // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
602 #if SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 64)
603 struct __sanitizer_sigaction {
604   unsigned sa_flags;
605   union {
606     __sanitizer_sigactionhandler_ptr sigaction;
607     __sanitizer_sighandler_ptr handler;
608   };
609   __sanitizer_sigset_t sa_mask;
610   void (*sa_restorer)();
611 };
612 #elif SANITIZER_ANDROID && SANITIZER_MIPS32  // check this before WORDSIZE == 32
613 struct __sanitizer_sigaction {
614   unsigned sa_flags;
615   union {
616     __sanitizer_sigactionhandler_ptr sigaction;
617     __sanitizer_sighandler_ptr handler;
618   };
619   __sanitizer_sigset_t sa_mask;
620 };
621 #elif SANITIZER_ANDROID && (SANITIZER_WORDSIZE == 32)
622 struct __sanitizer_sigaction {
623   union {
624     __sanitizer_sigactionhandler_ptr sigaction;
625     __sanitizer_sighandler_ptr handler;
626   };
627   __sanitizer_sigset_t sa_mask;
628   uptr sa_flags;
629   void (*sa_restorer)();
630 };
631 #else // !SANITIZER_ANDROID
632 struct __sanitizer_sigaction {
633 #if defined(__mips__) && !SANITIZER_FREEBSD
634   unsigned int sa_flags;
635 #endif
636   union {
637     __sanitizer_sigactionhandler_ptr sigaction;
638     __sanitizer_sighandler_ptr handler;
639   };
640 #if SANITIZER_FREEBSD
641   int sa_flags;
642   __sanitizer_sigset_t sa_mask;
643 #else
644 #if defined(__s390x__)
645   int sa_resv;
646 #else
647   __sanitizer_sigset_t sa_mask;
648 #endif
649 #ifndef __mips__
650 #if defined(__sparc__)
651 #if __GLIBC_PREREQ (2, 20)
652   // On sparc glibc 2.19 and earlier sa_flags was unsigned long.
653 #if defined(__arch64__)
654   // To maintain ABI compatibility on sparc64 when switching to an int,
655   // __glibc_reserved0 was added.
656   int __glibc_reserved0;
657 #endif
658   int sa_flags;
659 #else
660   unsigned long sa_flags;
661 #endif
662 #else
663   int sa_flags;
664 #endif
665 #endif
666 #endif
667 #if SANITIZER_LINUX
668   void (*sa_restorer)();
669 #endif
670 #if defined(__mips__) && (SANITIZER_WORDSIZE == 32)
671   int sa_resv[1];
672 #endif
673 #if defined(__s390x__)
674   __sanitizer_sigset_t sa_mask;
675 #endif
676 };
677 #endif // !SANITIZER_ANDROID
678 
679 #if defined(__mips__)
680 #define __SANITIZER_KERNEL_NSIG 128
681 #else
682 #define __SANITIZER_KERNEL_NSIG 64
683 #endif
684 
685 struct __sanitizer_kernel_sigset_t {
686   uptr sig[__SANITIZER_KERNEL_NSIG / (sizeof(uptr) * 8)];
687 };
688 
689 // Linux system headers define the 'sa_handler' and 'sa_sigaction' macros.
690 #if SANITIZER_MIPS
691 struct __sanitizer_kernel_sigaction_t {
692   unsigned int sa_flags;
693   union {
694     void (*handler)(int signo);
695     void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
696   };
697   __sanitizer_kernel_sigset_t sa_mask;
698   void (*sa_restorer)(void);
699 };
700 #else
701 struct __sanitizer_kernel_sigaction_t {
702   union {
703     void (*handler)(int signo);
704     void (*sigaction)(int signo, __sanitizer_siginfo *info, void *ctx);
705   };
706   unsigned long sa_flags;
707   void (*sa_restorer)(void);
708   __sanitizer_kernel_sigset_t sa_mask;
709 };
710 #endif
711 
712 extern const uptr sig_ign;
713 extern const uptr sig_dfl;
714 extern const uptr sig_err;
715 extern const uptr sa_siginfo;
716 
717 #if SANITIZER_LINUX
718 extern int e_tabsz;
719 #endif
720 
721 extern int af_inet;
722 extern int af_inet6;
723 uptr __sanitizer_in_addr_sz(int af);
724 
725 #if SANITIZER_LINUX
726 struct __sanitizer_dl_phdr_info {
727   uptr dlpi_addr;
728   const char *dlpi_name;
729   const void *dlpi_phdr;
730   short dlpi_phnum;
731 };
732 
733 extern unsigned struct_ElfW_Phdr_sz;
734 #endif
735 
736 struct __sanitizer_protoent {
737   char *p_name;
738   char **p_aliases;
739   int p_proto;
740 };
741 
742 struct __sanitizer_netent {
743   char *n_name;
744   char **n_aliases;
745   int n_addrtype;
746   u32 n_net;
747 };
748 
749 struct __sanitizer_addrinfo {
750   int ai_flags;
751   int ai_family;
752   int ai_socktype;
753   int ai_protocol;
754 #if SANITIZER_ANDROID || SANITIZER_APPLE
755   unsigned ai_addrlen;
756   char *ai_canonname;
757   void *ai_addr;
758 #else // LINUX
759   unsigned ai_addrlen;
760   void *ai_addr;
761   char *ai_canonname;
762 #endif
763   struct __sanitizer_addrinfo *ai_next;
764 };
765 
766 struct __sanitizer_hostent {
767   char *h_name;
768   char **h_aliases;
769   int h_addrtype;
770   int h_length;
771   char **h_addr_list;
772 };
773 
774 struct __sanitizer_pollfd {
775   int fd;
776   short events;
777   short revents;
778 };
779 
780 #if SANITIZER_ANDROID || SANITIZER_APPLE
781 typedef unsigned __sanitizer_nfds_t;
782 #else
783 typedef unsigned long __sanitizer_nfds_t;
784 #endif
785 
786 #if !SANITIZER_ANDROID
787 # if SANITIZER_LINUX
788 struct __sanitizer_glob_t {
789   uptr gl_pathc;
790   char **gl_pathv;
791   uptr gl_offs;
792   int gl_flags;
793 
794   void (*gl_closedir)(void *dirp);
795   void *(*gl_readdir)(void *dirp);
796   void *(*gl_opendir)(const char *);
797   int (*gl_lstat)(const char *, void *);
798   int (*gl_stat)(const char *, void *);
799 };
800 # endif  // SANITIZER_LINUX
801 
802 # if SANITIZER_LINUX
803 extern int glob_nomatch;
804 extern int glob_altdirfunc;
805 # endif
806 #endif  // !SANITIZER_ANDROID
807 
808 extern unsigned path_max;
809 
810 #  if !SANITIZER_ANDROID
811 extern const int wordexp_wrde_dooffs;
812 #  endif  // !SANITIZER_ANDROID
813 
814 struct __sanitizer_wordexp_t {
815   uptr we_wordc;
816   char **we_wordv;
817   uptr we_offs;
818 };
819 
820 #if SANITIZER_LINUX && !SANITIZER_ANDROID
821 struct __sanitizer_FILE {
822   int _flags;
823   char *_IO_read_ptr;
824   char *_IO_read_end;
825   char *_IO_read_base;
826   char *_IO_write_base;
827   char *_IO_write_ptr;
828   char *_IO_write_end;
829   char *_IO_buf_base;
830   char *_IO_buf_end;
831   char *_IO_save_base;
832   char *_IO_backup_base;
833   char *_IO_save_end;
834   void *_markers;
835   __sanitizer_FILE *_chain;
836   int _fileno;
837 };
838 # define SANITIZER_HAS_STRUCT_FILE 1
839 #else
840 typedef void __sanitizer_FILE;
841 # define SANITIZER_HAS_STRUCT_FILE 0
842 #endif
843 
844 #if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
845     (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
846      defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
847      defined(__s390__) || SANITIZER_RISCV64)
848 extern unsigned struct_user_regs_struct_sz;
849 extern unsigned struct_user_fpregs_struct_sz;
850 extern unsigned struct_user_fpxregs_struct_sz;
851 extern unsigned struct_user_vfpregs_struct_sz;
852 
853 extern int ptrace_peektext;
854 extern int ptrace_peekdata;
855 extern int ptrace_peekuser;
856 extern int ptrace_getregs;
857 extern int ptrace_setregs;
858 extern int ptrace_getfpregs;
859 extern int ptrace_setfpregs;
860 extern int ptrace_getfpxregs;
861 extern int ptrace_setfpxregs;
862 extern int ptrace_getvfpregs;
863 extern int ptrace_setvfpregs;
864 extern int ptrace_getsiginfo;
865 extern int ptrace_setsiginfo;
866 extern int ptrace_getregset;
867 extern int ptrace_setregset;
868 extern int ptrace_geteventmsg;
869 #endif
870 
871 #if SANITIZER_LINUX  && !SANITIZER_ANDROID
872 extern unsigned struct_shminfo_sz;
873 extern unsigned struct_shm_info_sz;
874 extern int shmctl_ipc_stat;
875 extern int shmctl_ipc_info;
876 extern int shmctl_shm_info;
877 extern int shmctl_shm_stat;
878 #endif
879 
880 #if !SANITIZER_APPLE && !SANITIZER_FREEBSD
881 extern unsigned struct_utmp_sz;
882 #endif
883 #if !SANITIZER_ANDROID
884 extern unsigned struct_utmpx_sz;
885 #endif
886 
887 extern int map_fixed;
888 
889 // ioctl arguments
890 struct __sanitizer_ifconf {
891   int ifc_len;
892   union {
893     void *ifcu_req;
894   } ifc_ifcu;
895 #if SANITIZER_APPLE
896 } __attribute__((packed));
897 #else
898 };
899 #endif
900 
901 #if SANITIZER_LINUX && !SANITIZER_ANDROID
902 struct __sanitizer__obstack_chunk {
903   char *limit;
904   struct __sanitizer__obstack_chunk *prev;
905 };
906 
907 struct __sanitizer_obstack {
908   long chunk_size;
909   struct __sanitizer__obstack_chunk *chunk;
910   char *object_base;
911   char *next_free;
912   uptr more_fields[7];
913 };
914 
915 typedef uptr (*__sanitizer_cookie_io_read)(void *cookie, char *buf, uptr size);
916 typedef uptr (*__sanitizer_cookie_io_write)(void *cookie, const char *buf,
917                                             uptr size);
918 typedef int (*__sanitizer_cookie_io_seek)(void *cookie, u64 *offset,
919                                           int whence);
920 typedef int (*__sanitizer_cookie_io_close)(void *cookie);
921 
922 struct __sanitizer_cookie_io_functions_t {
923   __sanitizer_cookie_io_read read;
924   __sanitizer_cookie_io_write write;
925   __sanitizer_cookie_io_seek seek;
926   __sanitizer_cookie_io_close close;
927 };
928 #endif
929 
930 #define IOC_NRBITS 8
931 #define IOC_TYPEBITS 8
932 #if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
933     defined(__sparc__)
934 #define IOC_SIZEBITS 13
935 #define IOC_DIRBITS 3
936 #define IOC_NONE 1U
937 #define IOC_WRITE 4U
938 #define IOC_READ 2U
939 #else
940 #define IOC_SIZEBITS 14
941 #define IOC_DIRBITS 2
942 #define IOC_NONE 0U
943 #define IOC_WRITE 1U
944 #define IOC_READ 2U
945 #endif
946 #define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
947 #define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
948 #define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
949 #if defined(IOC_DIRMASK)
950 #undef IOC_DIRMASK
951 #endif
952 #define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
953 #define IOC_NRSHIFT 0
954 #define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
955 #define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
956 #define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
957 #define EVIOC_EV_MAX 0x1f
958 #define EVIOC_ABS_MAX 0x3f
959 
960 #define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
961 #define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
962 #define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
963 
964 #if defined(__sparc__)
965 // In sparc the 14 bits SIZE field overlaps with the
966 // least significant bit of DIR, so either IOC_READ or
967 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.
968 #define IOC_SIZE(nr) \
969   ((((((nr) >> 29) & 0x7) & (4U | 2U)) == 0) ? 0 : (((nr) >> 16) & 0x3fff))
970 #else
971 #define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
972 #endif
973 
974 extern unsigned struct_ifreq_sz;
975 extern unsigned struct_termios_sz;
976 extern unsigned struct_winsize_sz;
977 
978 #if SANITIZER_LINUX
979 extern unsigned struct_arpreq_sz;
980 extern unsigned struct_cdrom_msf_sz;
981 extern unsigned struct_cdrom_multisession_sz;
982 extern unsigned struct_cdrom_read_audio_sz;
983 extern unsigned struct_cdrom_subchnl_sz;
984 extern unsigned struct_cdrom_ti_sz;
985 extern unsigned struct_cdrom_tocentry_sz;
986 extern unsigned struct_cdrom_tochdr_sz;
987 extern unsigned struct_cdrom_volctrl_sz;
988 extern unsigned struct_ff_effect_sz;
989 extern unsigned struct_floppy_drive_params_sz;
990 extern unsigned struct_floppy_drive_struct_sz;
991 extern unsigned struct_floppy_fdc_state_sz;
992 extern unsigned struct_floppy_max_errors_sz;
993 extern unsigned struct_floppy_raw_cmd_sz;
994 extern unsigned struct_floppy_struct_sz;
995 extern unsigned struct_floppy_write_errors_sz;
996 extern unsigned struct_format_descr_sz;
997 extern unsigned struct_hd_driveid_sz;
998 extern unsigned struct_hd_geometry_sz;
999 extern unsigned struct_input_absinfo_sz;
1000 extern unsigned struct_input_id_sz;
1001 extern unsigned struct_mtpos_sz;
1002 extern unsigned struct_termio_sz;
1003 extern unsigned struct_vt_consize_sz;
1004 extern unsigned struct_vt_sizes_sz;
1005 extern unsigned struct_vt_stat_sz;
1006 #endif  // SANITIZER_LINUX
1007 
1008 #if SANITIZER_LINUX
1009 extern unsigned struct_copr_buffer_sz;
1010 extern unsigned struct_copr_debug_buf_sz;
1011 extern unsigned struct_copr_msg_sz;
1012 extern unsigned struct_midi_info_sz;
1013 extern unsigned struct_mtget_sz;
1014 extern unsigned struct_mtop_sz;
1015 extern unsigned struct_rtentry_sz;
1016 extern unsigned struct_sbi_instrument_sz;
1017 extern unsigned struct_seq_event_rec_sz;
1018 extern unsigned struct_synth_info_sz;
1019 extern unsigned struct_vt_mode_sz;
1020 #endif // SANITIZER_LINUX
1021 
1022 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1023 extern unsigned struct_ax25_parms_struct_sz;
1024 extern unsigned struct_input_keymap_entry_sz;
1025 extern unsigned struct_ipx_config_data_sz;
1026 extern unsigned struct_kbdiacrs_sz;
1027 extern unsigned struct_kbentry_sz;
1028 extern unsigned struct_kbkeycode_sz;
1029 extern unsigned struct_kbsentry_sz;
1030 extern unsigned struct_mtconfiginfo_sz;
1031 extern unsigned struct_nr_parms_struct_sz;
1032 extern unsigned struct_scc_modem_sz;
1033 extern unsigned struct_scc_stat_sz;
1034 extern unsigned struct_serial_multiport_struct_sz;
1035 extern unsigned struct_serial_struct_sz;
1036 extern unsigned struct_sockaddr_ax25_sz;
1037 extern unsigned struct_unimapdesc_sz;
1038 extern unsigned struct_unimapinit_sz;
1039 #endif  // SANITIZER_LINUX && !SANITIZER_ANDROID
1040 
1041 extern const unsigned long __sanitizer_bufsiz;
1042 
1043 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1044 extern unsigned struct_audio_buf_info_sz;
1045 extern unsigned struct_ppp_stats_sz;
1046 #endif  // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1047 
1048 #if !SANITIZER_ANDROID && !SANITIZER_APPLE
1049 extern unsigned struct_sioc_sg_req_sz;
1050 extern unsigned struct_sioc_vif_req_sz;
1051 #endif
1052 
1053 // ioctl request identifiers
1054 
1055 // A special value to mark ioctls that are not present on the target platform,
1056 // when it can not be determined without including any system headers.
1057 extern const unsigned IOCTL_NOT_PRESENT;
1058 
1059 extern unsigned IOCTL_FIOASYNC;
1060 extern unsigned IOCTL_FIOCLEX;
1061 extern unsigned IOCTL_FIOGETOWN;
1062 extern unsigned IOCTL_FIONBIO;
1063 extern unsigned IOCTL_FIONCLEX;
1064 extern unsigned IOCTL_FIOSETOWN;
1065 extern unsigned IOCTL_SIOCADDMULTI;
1066 extern unsigned IOCTL_SIOCATMARK;
1067 extern unsigned IOCTL_SIOCDELMULTI;
1068 extern unsigned IOCTL_SIOCGIFADDR;
1069 extern unsigned IOCTL_SIOCGIFBRDADDR;
1070 extern unsigned IOCTL_SIOCGIFCONF;
1071 extern unsigned IOCTL_SIOCGIFDSTADDR;
1072 extern unsigned IOCTL_SIOCGIFFLAGS;
1073 extern unsigned IOCTL_SIOCGIFMETRIC;
1074 extern unsigned IOCTL_SIOCGIFMTU;
1075 extern unsigned IOCTL_SIOCGIFNETMASK;
1076 extern unsigned IOCTL_SIOCGPGRP;
1077 extern unsigned IOCTL_SIOCSIFADDR;
1078 extern unsigned IOCTL_SIOCSIFBRDADDR;
1079 extern unsigned IOCTL_SIOCSIFDSTADDR;
1080 extern unsigned IOCTL_SIOCSIFFLAGS;
1081 extern unsigned IOCTL_SIOCSIFMETRIC;
1082 extern unsigned IOCTL_SIOCSIFMTU;
1083 extern unsigned IOCTL_SIOCSIFNETMASK;
1084 extern unsigned IOCTL_SIOCSPGRP;
1085 extern unsigned IOCTL_TIOCCONS;
1086 extern unsigned IOCTL_TIOCEXCL;
1087 extern unsigned IOCTL_TIOCGETD;
1088 extern unsigned IOCTL_TIOCGPGRP;
1089 extern unsigned IOCTL_TIOCGWINSZ;
1090 extern unsigned IOCTL_TIOCMBIC;
1091 extern unsigned IOCTL_TIOCMBIS;
1092 extern unsigned IOCTL_TIOCMGET;
1093 extern unsigned IOCTL_TIOCMSET;
1094 extern unsigned IOCTL_TIOCNOTTY;
1095 extern unsigned IOCTL_TIOCNXCL;
1096 extern unsigned IOCTL_TIOCOUTQ;
1097 extern unsigned IOCTL_TIOCPKT;
1098 extern unsigned IOCTL_TIOCSCTTY;
1099 extern unsigned IOCTL_TIOCSETD;
1100 extern unsigned IOCTL_TIOCSPGRP;
1101 extern unsigned IOCTL_TIOCSTI;
1102 extern unsigned IOCTL_TIOCSWINSZ;
1103 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1104 extern unsigned IOCTL_SIOCGETSGCNT;
1105 extern unsigned IOCTL_SIOCGETVIFCNT;
1106 #endif
1107 #if SANITIZER_LINUX
1108 extern unsigned IOCTL_EVIOCGABS;
1109 extern unsigned IOCTL_EVIOCGBIT;
1110 extern unsigned IOCTL_EVIOCGEFFECTS;
1111 extern unsigned IOCTL_EVIOCGID;
1112 extern unsigned IOCTL_EVIOCGKEY;
1113 extern unsigned IOCTL_EVIOCGKEYCODE;
1114 extern unsigned IOCTL_EVIOCGLED;
1115 extern unsigned IOCTL_EVIOCGNAME;
1116 extern unsigned IOCTL_EVIOCGPHYS;
1117 extern unsigned IOCTL_EVIOCGRAB;
1118 extern unsigned IOCTL_EVIOCGREP;
1119 extern unsigned IOCTL_EVIOCGSND;
1120 extern unsigned IOCTL_EVIOCGSW;
1121 extern unsigned IOCTL_EVIOCGUNIQ;
1122 extern unsigned IOCTL_EVIOCGVERSION;
1123 extern unsigned IOCTL_EVIOCRMFF;
1124 extern unsigned IOCTL_EVIOCSABS;
1125 extern unsigned IOCTL_EVIOCSFF;
1126 extern unsigned IOCTL_EVIOCSKEYCODE;
1127 extern unsigned IOCTL_EVIOCSREP;
1128 extern unsigned IOCTL_BLKFLSBUF;
1129 extern unsigned IOCTL_BLKGETSIZE;
1130 extern unsigned IOCTL_BLKRAGET;
1131 extern unsigned IOCTL_BLKRASET;
1132 extern unsigned IOCTL_BLKROGET;
1133 extern unsigned IOCTL_BLKROSET;
1134 extern unsigned IOCTL_BLKRRPART;
1135 extern unsigned IOCTL_BLKFRASET;
1136 extern unsigned IOCTL_BLKFRAGET;
1137 extern unsigned IOCTL_BLKSECTSET;
1138 extern unsigned IOCTL_BLKSECTGET;
1139 extern unsigned IOCTL_BLKSSZGET;
1140 extern unsigned IOCTL_BLKBSZGET;
1141 extern unsigned IOCTL_BLKBSZSET;
1142 extern unsigned IOCTL_BLKGETSIZE64;
1143 extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
1144 extern unsigned IOCTL_CDROMEJECT;
1145 extern unsigned IOCTL_CDROMEJECT_SW;
1146 extern unsigned IOCTL_CDROMMULTISESSION;
1147 extern unsigned IOCTL_CDROMPAUSE;
1148 extern unsigned IOCTL_CDROMPLAYMSF;
1149 extern unsigned IOCTL_CDROMPLAYTRKIND;
1150 extern unsigned IOCTL_CDROMREADAUDIO;
1151 extern unsigned IOCTL_CDROMREADCOOKED;
1152 extern unsigned IOCTL_CDROMREADMODE1;
1153 extern unsigned IOCTL_CDROMREADMODE2;
1154 extern unsigned IOCTL_CDROMREADRAW;
1155 extern unsigned IOCTL_CDROMREADTOCENTRY;
1156 extern unsigned IOCTL_CDROMREADTOCHDR;
1157 extern unsigned IOCTL_CDROMRESET;
1158 extern unsigned IOCTL_CDROMRESUME;
1159 extern unsigned IOCTL_CDROMSEEK;
1160 extern unsigned IOCTL_CDROMSTART;
1161 extern unsigned IOCTL_CDROMSTOP;
1162 extern unsigned IOCTL_CDROMSUBCHNL;
1163 extern unsigned IOCTL_CDROMVOLCTRL;
1164 extern unsigned IOCTL_CDROMVOLREAD;
1165 extern unsigned IOCTL_CDROM_GET_UPC;
1166 extern unsigned IOCTL_FDCLRPRM;
1167 extern unsigned IOCTL_FDDEFPRM;
1168 extern unsigned IOCTL_FDFLUSH;
1169 extern unsigned IOCTL_FDFMTBEG;
1170 extern unsigned IOCTL_FDFMTEND;
1171 extern unsigned IOCTL_FDFMTTRK;
1172 extern unsigned IOCTL_FDGETDRVPRM;
1173 extern unsigned IOCTL_FDGETDRVSTAT;
1174 extern unsigned IOCTL_FDGETDRVTYP;
1175 extern unsigned IOCTL_FDGETFDCSTAT;
1176 extern unsigned IOCTL_FDGETMAXERRS;
1177 extern unsigned IOCTL_FDGETPRM;
1178 extern unsigned IOCTL_FDMSGOFF;
1179 extern unsigned IOCTL_FDMSGON;
1180 extern unsigned IOCTL_FDPOLLDRVSTAT;
1181 extern unsigned IOCTL_FDRAWCMD;
1182 extern unsigned IOCTL_FDRESET;
1183 extern unsigned IOCTL_FDSETDRVPRM;
1184 extern unsigned IOCTL_FDSETEMSGTRESH;
1185 extern unsigned IOCTL_FDSETMAXERRS;
1186 extern unsigned IOCTL_FDSETPRM;
1187 extern unsigned IOCTL_FDTWADDLE;
1188 extern unsigned IOCTL_FDWERRORCLR;
1189 extern unsigned IOCTL_FDWERRORGET;
1190 extern unsigned IOCTL_HDIO_DRIVE_CMD;
1191 extern unsigned IOCTL_HDIO_GETGEO;
1192 extern unsigned IOCTL_HDIO_GET_32BIT;
1193 extern unsigned IOCTL_HDIO_GET_DMA;
1194 extern unsigned IOCTL_HDIO_GET_IDENTITY;
1195 extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
1196 extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
1197 extern unsigned IOCTL_HDIO_GET_NOWERR;
1198 extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
1199 extern unsigned IOCTL_HDIO_SET_32BIT;
1200 extern unsigned IOCTL_HDIO_SET_DMA;
1201 extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
1202 extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
1203 extern unsigned IOCTL_HDIO_SET_NOWERR;
1204 extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
1205 extern unsigned IOCTL_MTIOCPOS;
1206 extern unsigned IOCTL_PPPIOCGASYNCMAP;
1207 extern unsigned IOCTL_PPPIOCGDEBUG;
1208 extern unsigned IOCTL_PPPIOCGFLAGS;
1209 extern unsigned IOCTL_PPPIOCGUNIT;
1210 extern unsigned IOCTL_PPPIOCGXASYNCMAP;
1211 extern unsigned IOCTL_PPPIOCSASYNCMAP;
1212 extern unsigned IOCTL_PPPIOCSDEBUG;
1213 extern unsigned IOCTL_PPPIOCSFLAGS;
1214 extern unsigned IOCTL_PPPIOCSMAXCID;
1215 extern unsigned IOCTL_PPPIOCSMRU;
1216 extern unsigned IOCTL_PPPIOCSXASYNCMAP;
1217 extern unsigned IOCTL_SIOCDARP;
1218 extern unsigned IOCTL_SIOCDRARP;
1219 extern unsigned IOCTL_SIOCGARP;
1220 extern unsigned IOCTL_SIOCGIFENCAP;
1221 extern unsigned IOCTL_SIOCGIFHWADDR;
1222 extern unsigned IOCTL_SIOCGIFMAP;
1223 extern unsigned IOCTL_SIOCGIFMEM;
1224 extern unsigned IOCTL_SIOCGIFNAME;
1225 extern unsigned IOCTL_SIOCGIFSLAVE;
1226 extern unsigned IOCTL_SIOCGRARP;
1227 extern unsigned IOCTL_SIOCGSTAMP;
1228 extern unsigned IOCTL_SIOCSARP;
1229 extern unsigned IOCTL_SIOCSIFENCAP;
1230 extern unsigned IOCTL_SIOCSIFHWADDR;
1231 extern unsigned IOCTL_SIOCSIFLINK;
1232 extern unsigned IOCTL_SIOCSIFMAP;
1233 extern unsigned IOCTL_SIOCSIFMEM;
1234 extern unsigned IOCTL_SIOCSIFSLAVE;
1235 extern unsigned IOCTL_SIOCSRARP;
1236 extern unsigned IOCTL_SNDCTL_COPR_HALT;
1237 extern unsigned IOCTL_SNDCTL_COPR_LOAD;
1238 extern unsigned IOCTL_SNDCTL_COPR_RCODE;
1239 extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
1240 extern unsigned IOCTL_SNDCTL_COPR_RDATA;
1241 extern unsigned IOCTL_SNDCTL_COPR_RESET;
1242 extern unsigned IOCTL_SNDCTL_COPR_RUN;
1243 extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
1244 extern unsigned IOCTL_SNDCTL_COPR_WCODE;
1245 extern unsigned IOCTL_SNDCTL_COPR_WDATA;
1246 extern unsigned IOCTL_TCFLSH;
1247 extern unsigned IOCTL_TCGETA;
1248 extern unsigned IOCTL_TCGETS;
1249 extern unsigned IOCTL_TCSBRK;
1250 extern unsigned IOCTL_TCSBRKP;
1251 extern unsigned IOCTL_TCSETA;
1252 extern unsigned IOCTL_TCSETAF;
1253 extern unsigned IOCTL_TCSETAW;
1254 extern unsigned IOCTL_TCSETS;
1255 extern unsigned IOCTL_TCSETSF;
1256 extern unsigned IOCTL_TCSETSW;
1257 extern unsigned IOCTL_TCXONC;
1258 extern unsigned IOCTL_TIOCGLCKTRMIOS;
1259 extern unsigned IOCTL_TIOCGSOFTCAR;
1260 extern unsigned IOCTL_TIOCINQ;
1261 extern unsigned IOCTL_TIOCLINUX;
1262 extern unsigned IOCTL_TIOCSERCONFIG;
1263 extern unsigned IOCTL_TIOCSERGETLSR;
1264 extern unsigned IOCTL_TIOCSERGWILD;
1265 extern unsigned IOCTL_TIOCSERSWILD;
1266 extern unsigned IOCTL_TIOCSLCKTRMIOS;
1267 extern unsigned IOCTL_TIOCSSOFTCAR;
1268 extern unsigned IOCTL_VT_DISALLOCATE;
1269 extern unsigned IOCTL_VT_GETSTATE;
1270 extern unsigned IOCTL_VT_RESIZE;
1271 extern unsigned IOCTL_VT_RESIZEX;
1272 extern unsigned IOCTL_VT_SENDSIG;
1273 extern unsigned IOCTL_MTIOCGET;
1274 extern unsigned IOCTL_MTIOCTOP;
1275 extern unsigned IOCTL_SIOCADDRT;
1276 extern unsigned IOCTL_SIOCDELRT;
1277 extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
1278 extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
1279 extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
1280 extern unsigned IOCTL_SNDCTL_DSP_POST;
1281 extern unsigned IOCTL_SNDCTL_DSP_RESET;
1282 extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
1283 extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
1284 extern unsigned IOCTL_SNDCTL_DSP_SPEED;
1285 extern unsigned IOCTL_SNDCTL_DSP_STEREO;
1286 extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
1287 extern unsigned IOCTL_SNDCTL_DSP_SYNC;
1288 extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
1289 extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
1290 extern unsigned IOCTL_SNDCTL_MIDI_INFO;
1291 extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
1292 extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
1293 extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
1294 extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
1295 extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
1296 extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
1297 extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
1298 extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
1299 extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
1300 extern unsigned IOCTL_SNDCTL_SEQ_RESET;
1301 extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
1302 extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
1303 extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
1304 extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
1305 extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
1306 extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
1307 extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
1308 extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
1309 extern unsigned IOCTL_SNDCTL_TMR_SELECT;
1310 extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
1311 extern unsigned IOCTL_SNDCTL_TMR_START;
1312 extern unsigned IOCTL_SNDCTL_TMR_STOP;
1313 extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
1314 extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
1315 extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
1316 extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
1317 extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
1318 extern unsigned IOCTL_SOUND_MIXER_READ_CD;
1319 extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
1320 extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
1321 extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
1322 extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
1323 extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
1324 extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
1325 extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
1326 extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
1327 extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
1328 extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
1329 extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
1330 extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
1331 extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
1332 extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
1333 extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
1334 extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
1335 extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
1336 extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
1337 extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
1338 extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
1339 extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
1340 extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
1341 extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
1342 extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
1343 extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
1344 extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
1345 extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
1346 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
1347 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
1348 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
1349 extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
1350 extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
1351 extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
1352 extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
1353 extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
1354 extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
1355 extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
1356 extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
1357 extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
1358 extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
1359 extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
1360 extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
1361 extern unsigned IOCTL_SOUND_PCM_READ_BITS;
1362 extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
1363 extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
1364 extern unsigned IOCTL_SOUND_PCM_READ_RATE;
1365 extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
1366 extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
1367 extern unsigned IOCTL_VT_ACTIVATE;
1368 extern unsigned IOCTL_VT_GETMODE;
1369 extern unsigned IOCTL_VT_OPENQRY;
1370 extern unsigned IOCTL_VT_RELDISP;
1371 extern unsigned IOCTL_VT_SETMODE;
1372 extern unsigned IOCTL_VT_WAITACTIVE;
1373 #endif  // SANITIZER_LINUX
1374 
1375 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1376 extern unsigned IOCTL_EQL_EMANCIPATE;
1377 extern unsigned IOCTL_EQL_ENSLAVE;
1378 extern unsigned IOCTL_EQL_GETMASTRCFG;
1379 extern unsigned IOCTL_EQL_GETSLAVECFG;
1380 extern unsigned IOCTL_EQL_SETMASTRCFG;
1381 extern unsigned IOCTL_EQL_SETSLAVECFG;
1382 extern unsigned IOCTL_EVIOCGKEYCODE_V2;
1383 extern unsigned IOCTL_EVIOCGPROP;
1384 extern unsigned IOCTL_EVIOCSKEYCODE_V2;
1385 extern unsigned IOCTL_FS_IOC_GETFLAGS;
1386 extern unsigned IOCTL_FS_IOC_GETVERSION;
1387 extern unsigned IOCTL_FS_IOC_SETFLAGS;
1388 extern unsigned IOCTL_FS_IOC_SETVERSION;
1389 extern unsigned IOCTL_GIO_CMAP;
1390 extern unsigned IOCTL_GIO_FONT;
1391 extern unsigned IOCTL_GIO_UNIMAP;
1392 extern unsigned IOCTL_GIO_UNISCRNMAP;
1393 extern unsigned IOCTL_KDADDIO;
1394 extern unsigned IOCTL_KDDELIO;
1395 extern unsigned IOCTL_KDGETKEYCODE;
1396 extern unsigned IOCTL_KDGKBDIACR;
1397 extern unsigned IOCTL_KDGKBENT;
1398 extern unsigned IOCTL_KDGKBLED;
1399 extern unsigned IOCTL_KDGKBMETA;
1400 extern unsigned IOCTL_KDGKBSENT;
1401 extern unsigned IOCTL_KDMAPDISP;
1402 extern unsigned IOCTL_KDSETKEYCODE;
1403 extern unsigned IOCTL_KDSIGACCEPT;
1404 extern unsigned IOCTL_KDSKBDIACR;
1405 extern unsigned IOCTL_KDSKBENT;
1406 extern unsigned IOCTL_KDSKBLED;
1407 extern unsigned IOCTL_KDSKBMETA;
1408 extern unsigned IOCTL_KDSKBSENT;
1409 extern unsigned IOCTL_KDUNMAPDISP;
1410 extern unsigned IOCTL_LPABORT;
1411 extern unsigned IOCTL_LPABORTOPEN;
1412 extern unsigned IOCTL_LPCAREFUL;
1413 extern unsigned IOCTL_LPCHAR;
1414 extern unsigned IOCTL_LPGETIRQ;
1415 extern unsigned IOCTL_LPGETSTATUS;
1416 extern unsigned IOCTL_LPRESET;
1417 extern unsigned IOCTL_LPSETIRQ;
1418 extern unsigned IOCTL_LPTIME;
1419 extern unsigned IOCTL_LPWAIT;
1420 extern unsigned IOCTL_MTIOCGETCONFIG;
1421 extern unsigned IOCTL_MTIOCSETCONFIG;
1422 extern unsigned IOCTL_PIO_CMAP;
1423 extern unsigned IOCTL_PIO_FONT;
1424 extern unsigned IOCTL_PIO_UNIMAP;
1425 extern unsigned IOCTL_PIO_UNIMAPCLR;
1426 extern unsigned IOCTL_PIO_UNISCRNMAP;
1427 extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
1428 extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
1429 extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
1430 extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
1431 extern unsigned IOCTL_SIOCAIPXITFCRT;
1432 extern unsigned IOCTL_SIOCAIPXPRISLT;
1433 extern unsigned IOCTL_SIOCAX25ADDUID;
1434 extern unsigned IOCTL_SIOCAX25DELUID;
1435 extern unsigned IOCTL_SIOCAX25GETPARMS;
1436 extern unsigned IOCTL_SIOCAX25GETUID;
1437 extern unsigned IOCTL_SIOCAX25NOUID;
1438 extern unsigned IOCTL_SIOCAX25SETPARMS;
1439 extern unsigned IOCTL_SIOCDEVPLIP;
1440 extern unsigned IOCTL_SIOCIPXCFGDATA;
1441 extern unsigned IOCTL_SIOCNRDECOBS;
1442 extern unsigned IOCTL_SIOCNRGETPARMS;
1443 extern unsigned IOCTL_SIOCNRRTCTL;
1444 extern unsigned IOCTL_SIOCNRSETPARMS;
1445 extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
1446 extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
1447 extern unsigned IOCTL_TIOCGSERIAL;
1448 extern unsigned IOCTL_TIOCSERGETMULTI;
1449 extern unsigned IOCTL_TIOCSERSETMULTI;
1450 extern unsigned IOCTL_TIOCSSERIAL;
1451 extern unsigned IOCTL_GIO_SCRNMAP;
1452 extern unsigned IOCTL_KDDISABIO;
1453 extern unsigned IOCTL_KDENABIO;
1454 extern unsigned IOCTL_KDGETLED;
1455 extern unsigned IOCTL_KDGETMODE;
1456 extern unsigned IOCTL_KDGKBMODE;
1457 extern unsigned IOCTL_KDGKBTYPE;
1458 extern unsigned IOCTL_KDMKTONE;
1459 extern unsigned IOCTL_KDSETLED;
1460 extern unsigned IOCTL_KDSETMODE;
1461 extern unsigned IOCTL_KDSKBMODE;
1462 extern unsigned IOCTL_KIOCSOUND;
1463 extern unsigned IOCTL_PIO_SCRNMAP;
1464 #endif
1465 
1466 extern const int si_SEGV_MAPERR;
1467 extern const int si_SEGV_ACCERR;
1468 }  // namespace __sanitizer
1469 
1470 #define CHECK_TYPE_SIZE(TYPE) \
1471   COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
1472 
1473 #define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER)                      \
1474   COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *)NULL)->MEMBER) == \
1475                  sizeof(((CLASS *)NULL)->MEMBER));                \
1476   COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==         \
1477                  offsetof(CLASS, MEMBER))
1478 
1479 // For sigaction, which is a function and struct at the same time,
1480 // and thus requires explicit "struct" in sizeof() expression.
1481 #define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER)                      \
1482   COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *)NULL)->MEMBER) == \
1483                  sizeof(((struct CLASS *)NULL)->MEMBER));                \
1484   COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) ==         \
1485                  offsetof(struct CLASS, MEMBER))
1486 
1487 #define SIGACTION_SYMNAME sigaction
1488 
1489 #endif  // SANITIZER_LINUX || SANITIZER_APPLE
1490 
1491 #endif
1492