1//===-- sanitizer_common_syscalls.inc ---------------------------*- C++ -*-===//
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// Common syscalls handlers for tools like AddressSanitizer,
10// ThreadSanitizer, MemorySanitizer, etc.
11//
12// This file should be included into the tool's interceptor file,
13// which has to define it's own macros:
14// COMMON_SYSCALL_PRE_READ_RANGE
15// Called in prehook for regions that will be read by the kernel and
16// must be initialized.
17// COMMON_SYSCALL_PRE_WRITE_RANGE
18// Called in prehook for regions that will be written to by the kernel
19// and must be addressable. The actual write range may be smaller than
20// reported in the prehook. See POST_WRITE_RANGE.
21// COMMON_SYSCALL_POST_READ_RANGE
22// Called in posthook for regions that were read by the kernel. Does
23// not make much sense.
24// COMMON_SYSCALL_POST_WRITE_RANGE
25// Called in posthook for regions that were written to by the kernel
26// and are now initialized.
27// COMMON_SYSCALL_ACQUIRE(addr)
28// Acquire memory visibility from addr.
29// COMMON_SYSCALL_RELEASE(addr)
30// Release memory visibility to addr.
31// COMMON_SYSCALL_FD_CLOSE(fd)
32// Called before closing file descriptor fd.
33// COMMON_SYSCALL_FD_ACQUIRE(fd)
34// Acquire memory visibility from fd.
35// COMMON_SYSCALL_FD_RELEASE(fd)
36// Release memory visibility to fd.
37// COMMON_SYSCALL_PRE_FORK()
38// Called before fork syscall.
39// COMMON_SYSCALL_POST_FORK(long res)
40// Called after fork syscall.
41// COMMON_SYSCALL_BLOCKING_START()
42// Called before blocking syscall.
43// COMMON_SYSCALL_BLOCKING_END()
44// Called after blocking syscall.
45//===----------------------------------------------------------------------===//
46
47#include "sanitizer_platform.h"
48#if SANITIZER_LINUX
49
50# include "sanitizer_libc.h"
51# include "sanitizer_platform_limits_posix.h"
52
53# define PRE_SYSCALL(name) \
54 SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_pre_impl_##name
55# define PRE_READ(p, s) COMMON_SYSCALL_PRE_READ_RANGE(p, s)
56# define PRE_WRITE(p, s) COMMON_SYSCALL_PRE_WRITE_RANGE(p, s)
57
58# define POST_SYSCALL(name) \
59 SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_post_impl_##name
60# define POST_READ(p, s) COMMON_SYSCALL_POST_READ_RANGE(p, s)
61# define POST_WRITE(p, s) COMMON_SYSCALL_POST_WRITE_RANGE(p, s)
62
63# ifndef COMMON_SYSCALL_ACQUIRE
64# define COMMON_SYSCALL_ACQUIRE(addr) ((void)(addr))
65# endif
66
67# ifndef COMMON_SYSCALL_RELEASE
68# define COMMON_SYSCALL_RELEASE(addr) ((void)(addr))
69# endif
70
71# ifndef COMMON_SYSCALL_FD_CLOSE
72# define COMMON_SYSCALL_FD_CLOSE(fd) ((void)(fd))
73# endif
74
75# ifndef COMMON_SYSCALL_FD_ACQUIRE
76# define COMMON_SYSCALL_FD_ACQUIRE(fd) ((void)(fd))
77# endif
78
79# ifndef COMMON_SYSCALL_FD_RELEASE
80# define COMMON_SYSCALL_FD_RELEASE(fd) ((void)(fd))
81# endif
82
83# ifndef COMMON_SYSCALL_PRE_FORK
84# define COMMON_SYSCALL_PRE_FORK() \
85 {}
86# endif
87
88# ifndef COMMON_SYSCALL_POST_FORK
89# define COMMON_SYSCALL_POST_FORK(res) \
90 {}
91# endif
92
93# ifndef COMMON_SYSCALL_BLOCKING_START
94# define COMMON_SYSCALL_BLOCKING_START() \
95 {}
96# endif
97
98# ifndef COMMON_SYSCALL_BLOCKING_END
99# define COMMON_SYSCALL_BLOCKING_END() \
100 {}
101# endif
102
103// FIXME: do some kind of PRE_READ for all syscall arguments (int(s) and such).
104
105extern "C" {
106struct sanitizer_kernel_iovec {
107 void *iov_base;
108 unsigned long iov_len;
109};
110
111struct sanitizer_kernel_msghdr {
112 void *msg_name;
113 int msg_namelen;
114 struct sanitizer_kernel_iovec *msg_iov;
115 unsigned long msg_iovlen;
116 void *msg_control;
117 unsigned long msg_controllen;
118 unsigned msg_flags;
119};
120
121struct sanitizer_kernel_mmsghdr {
122 struct sanitizer_kernel_msghdr msg_hdr;
123 unsigned msg_len;
124};
125
126struct sanitizer_kernel_timespec {
127 long tv_sec;
128 long tv_nsec;
129};
130
131struct sanitizer_kernel_timeval {
132 long tv_sec;
133 long tv_usec;
134};
135
136struct sanitizer_kernel_rusage {
137 struct sanitizer_kernel_timeval ru_timeval[2];
138 long ru_long[14];
139};
140
141struct sanitizer_kernel_sockaddr {
142 unsigned short sa_family;
143 char sa_data[14];
144};
145
146struct sanitizer_kernel_open_how {
147 u64 flags;
148 u64 mode;
149 u64 resolve;
150};
151
152// Real sigset size is always passed as a syscall argument.
153// Declare it "void" to catch sizeof(kernel_sigset_t).
154typedef void kernel_sigset_t;
155
156static void kernel_write_iovec(const __sanitizer_iovec *iovec, SIZE_T iovlen,
157 SIZE_T maxlen) {
158 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
159 SSIZE_T sz = Min(a: iovec[i].iov_len, b: maxlen);
160 POST_WRITE(iovec[i].iov_base, sz);
161 maxlen -= sz;
162 }
163}
164
165// This functions uses POST_READ, because it needs to run after syscall to know
166// the real read range.
167static void kernel_read_iovec(const __sanitizer_iovec *iovec, SIZE_T iovlen,
168 SIZE_T maxlen) {
169 POST_READ(iovec, sizeof(*iovec) * iovlen);
170 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
171 SSIZE_T sz = Min(a: iovec[i].iov_len, b: maxlen);
172 POST_READ(iovec[i].iov_base, sz);
173 maxlen -= sz;
174 }
175}
176
177PRE_SYSCALL(recvmsg)(long sockfd, sanitizer_kernel_msghdr *msg, long flags) {
178 PRE_READ(msg, sizeof(*msg));
179}
180
181POST_SYSCALL(recvmsg)
182(long res, long sockfd, sanitizer_kernel_msghdr *msg, long flags) {
183 if (res >= 0) {
184 if (msg) {
185 for (unsigned long i = 0; i < msg->msg_iovlen; ++i) {
186 POST_WRITE(msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len);
187 }
188 POST_WRITE(msg->msg_control, msg->msg_controllen);
189 }
190 }
191}
192
193PRE_SYSCALL(recvmmsg)
194(long fd, sanitizer_kernel_mmsghdr *msg, long vlen, long flags, void *timeout) {
195 PRE_READ(msg, vlen * sizeof(*msg));
196}
197
198POST_SYSCALL(recvmmsg)
199(long res, long fd, sanitizer_kernel_mmsghdr *msg, long vlen, long flags,
200 void *timeout) {
201 if (res >= 0) {
202 if (msg) {
203 for (unsigned long i = 0; i < msg->msg_hdr.msg_iovlen; ++i) {
204 POST_WRITE(msg->msg_hdr.msg_iov[i].iov_base,
205 msg->msg_hdr.msg_iov[i].iov_len);
206 }
207 POST_WRITE(msg->msg_hdr.msg_control, msg->msg_hdr.msg_controllen);
208 POST_WRITE(&msg->msg_len, sizeof(msg->msg_len));
209 }
210 if (timeout)
211 POST_WRITE(timeout, struct_timespec_sz);
212 }
213}
214
215PRE_SYSCALL(read)(long fd, void *buf, uptr count) {
216 if (buf) {
217 PRE_WRITE(buf, count);
218 }
219}
220
221POST_SYSCALL(read)(long res, long fd, void *buf, uptr count) {
222 if (res > 0 && buf) {
223 POST_WRITE(buf, res);
224 }
225}
226
227PRE_SYSCALL(time)(void *tloc) {}
228
229POST_SYSCALL(time)(long res, void *tloc) {
230 if (res >= 0) {
231 if (tloc)
232 POST_WRITE(tloc, sizeof(long));
233 }
234}
235
236PRE_SYSCALL(stime)(void *tptr) {}
237
238POST_SYSCALL(stime)(long res, void *tptr) {
239 if (res >= 0) {
240 if (tptr)
241 POST_WRITE(tptr, sizeof(long));
242 }
243}
244
245PRE_SYSCALL(gettimeofday)(void *tv, void *tz) {}
246
247POST_SYSCALL(gettimeofday)(long res, void *tv, void *tz) {
248 if (res >= 0) {
249 if (tv)
250 POST_WRITE(tv, timeval_sz);
251 if (tz)
252 POST_WRITE(tz, struct_timezone_sz);
253 }
254}
255
256PRE_SYSCALL(settimeofday)(void *tv, void *tz) {}
257
258POST_SYSCALL(settimeofday)(long res, void *tv, void *tz) {
259 if (res >= 0) {
260 if (tv)
261 POST_WRITE(tv, timeval_sz);
262 if (tz)
263 POST_WRITE(tz, struct_timezone_sz);
264 }
265}
266
267# if !SANITIZER_ANDROID
268PRE_SYSCALL(adjtimex)(void *txc_p) {}
269
270POST_SYSCALL(adjtimex)(long res, void *txc_p) {
271 if (res >= 0) {
272 if (txc_p)
273 POST_WRITE(txc_p, struct_timex_sz);
274 }
275}
276# endif
277
278PRE_SYSCALL(times)(void *tbuf) {}
279
280POST_SYSCALL(times)(long res, void *tbuf) {
281 if (res >= 0) {
282 if (tbuf)
283 POST_WRITE(tbuf, struct_tms_sz);
284 }
285}
286
287PRE_SYSCALL(gettid)() {}
288
289POST_SYSCALL(gettid)(long res) {}
290
291PRE_SYSCALL(nanosleep)(void *rqtp, void *rmtp) {}
292
293POST_SYSCALL(nanosleep)(long res, void *rqtp, void *rmtp) {
294 if (res >= 0) {
295 if (rqtp)
296 POST_WRITE(rqtp, struct_timespec_sz);
297 if (rmtp)
298 POST_WRITE(rmtp, struct_timespec_sz);
299 }
300}
301
302PRE_SYSCALL(alarm)(long seconds) {}
303
304POST_SYSCALL(alarm)(long res, long seconds) {}
305
306PRE_SYSCALL(getpid)() {}
307
308POST_SYSCALL(getpid)(long res) {}
309
310PRE_SYSCALL(getppid)() {}
311
312POST_SYSCALL(getppid)(long res) {}
313
314PRE_SYSCALL(getuid)() {}
315
316POST_SYSCALL(getuid)(long res) {}
317
318PRE_SYSCALL(geteuid)() {}
319
320POST_SYSCALL(geteuid)(long res) {}
321
322PRE_SYSCALL(getgid)() {}
323
324POST_SYSCALL(getgid)(long res) {}
325
326PRE_SYSCALL(getegid)() {}
327
328POST_SYSCALL(getegid)(long res) {}
329
330PRE_SYSCALL(getresuid)(void *ruid, void *euid, void *suid) {}
331
332POST_SYSCALL(getresuid)(long res, void *ruid, void *euid, void *suid) {
333 if (res >= 0) {
334 if (ruid)
335 POST_WRITE(ruid, sizeof(unsigned));
336 if (euid)
337 POST_WRITE(euid, sizeof(unsigned));
338 if (suid)
339 POST_WRITE(suid, sizeof(unsigned));
340 }
341}
342
343PRE_SYSCALL(getresgid)(void *rgid, void *egid, void *sgid) {}
344
345POST_SYSCALL(getresgid)(long res, void *rgid, void *egid, void *sgid) {
346 if (res >= 0) {
347 if (rgid)
348 POST_WRITE(rgid, sizeof(unsigned));
349 if (egid)
350 POST_WRITE(egid, sizeof(unsigned));
351 if (sgid)
352 POST_WRITE(sgid, sizeof(unsigned));
353 }
354}
355
356PRE_SYSCALL(getpgid)(long pid) {}
357
358POST_SYSCALL(getpgid)(long res, long pid) {}
359
360PRE_SYSCALL(getpgrp)() {}
361
362POST_SYSCALL(getpgrp)(long res) {}
363
364PRE_SYSCALL(getsid)(long pid) {}
365
366POST_SYSCALL(getsid)(long res, long pid) {}
367
368PRE_SYSCALL(getgroups)(long gidsetsize, void *grouplist) {}
369
370POST_SYSCALL(getgroups)
371(long res, long gidsetsize, __sanitizer___kernel_gid_t *grouplist) {
372 if (res >= 0) {
373 if (grouplist)
374 POST_WRITE(grouplist, res * sizeof(*grouplist));
375 }
376}
377
378PRE_SYSCALL(setregid)(long rgid, long egid) {}
379
380POST_SYSCALL(setregid)(long res, long rgid, long egid) {}
381
382PRE_SYSCALL(setgid)(long gid) {}
383
384POST_SYSCALL(setgid)(long res, long gid) {}
385
386PRE_SYSCALL(setreuid)(long ruid, long euid) {}
387
388POST_SYSCALL(setreuid)(long res, long ruid, long euid) {}
389
390PRE_SYSCALL(setuid)(long uid) {}
391
392POST_SYSCALL(setuid)(long res, long uid) {}
393
394PRE_SYSCALL(setresuid)(long ruid, long euid, long suid) {}
395
396POST_SYSCALL(setresuid)(long res, long ruid, long euid, long suid) {}
397
398PRE_SYSCALL(setresgid)(long rgid, long egid, long sgid) {}
399
400POST_SYSCALL(setresgid)(long res, long rgid, long egid, long sgid) {}
401
402PRE_SYSCALL(setfsuid)(long uid) {}
403
404POST_SYSCALL(setfsuid)(long res, long uid) {}
405
406PRE_SYSCALL(setfsgid)(long gid) {}
407
408POST_SYSCALL(setfsgid)(long res, long gid) {}
409
410PRE_SYSCALL(setpgid)(long pid, long pgid) {}
411
412POST_SYSCALL(setpgid)(long res, long pid, long pgid) {}
413
414PRE_SYSCALL(setsid)() {}
415
416POST_SYSCALL(setsid)(long res) {}
417
418PRE_SYSCALL(setgroups)(long gidsetsize, __sanitizer___kernel_gid_t *grouplist) {
419 if (grouplist)
420 POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
421}
422
423POST_SYSCALL(setgroups)
424(long res, long gidsetsize, __sanitizer___kernel_gid_t *grouplist) {}
425
426PRE_SYSCALL(acct)(const void *name) {
427 if (name)
428 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
429}
430
431POST_SYSCALL(acct)(long res, const void *name) {}
432
433PRE_SYSCALL(capget)(void *header, void *dataptr) {
434 if (header)
435 PRE_READ(header, __user_cap_header_struct_sz);
436}
437
438POST_SYSCALL(capget)(long res, void *header, void *dataptr) {
439 if (res >= 0)
440 if (dataptr)
441 POST_WRITE(dataptr, __user_cap_data_struct_sz(header));
442}
443
444PRE_SYSCALL(capset)(void *header, const void *data) {
445 if (header)
446 PRE_READ(header, __user_cap_header_struct_sz);
447 if (data)
448 PRE_READ(data, __user_cap_data_struct_sz(header));
449}
450
451POST_SYSCALL(capset)(long res, void *header, const void *data) {}
452
453PRE_SYSCALL(personality)(long personality) {}
454
455POST_SYSCALL(personality)(long res, long personality) {}
456
457PRE_SYSCALL(sigpending)(void *set) {}
458
459POST_SYSCALL(sigpending)(long res, void *set) {
460 if (res >= 0) {
461 if (set)
462 POST_WRITE(set, old_sigset_t_sz);
463 }
464}
465
466PRE_SYSCALL(sigprocmask)(long how, void *set, void *oset) {}
467
468POST_SYSCALL(sigprocmask)(long res, long how, void *set, void *oset) {
469 if (res >= 0) {
470 if (set)
471 POST_WRITE(set, old_sigset_t_sz);
472 if (oset)
473 POST_WRITE(oset, old_sigset_t_sz);
474 }
475}
476
477PRE_SYSCALL(getitimer)(long which, void *value) {}
478
479POST_SYSCALL(getitimer)(long res, long which, void *value) {
480 if (res >= 0) {
481 if (value)
482 POST_WRITE(value, struct_itimerval_sz);
483 }
484}
485
486PRE_SYSCALL(setitimer)(long which, void *value, void *ovalue) {}
487
488POST_SYSCALL(setitimer)(long res, long which, void *value, void *ovalue) {
489 if (res >= 0) {
490 if (value)
491 POST_WRITE(value, struct_itimerval_sz);
492 if (ovalue)
493 POST_WRITE(ovalue, struct_itimerval_sz);
494 }
495}
496
497PRE_SYSCALL(timer_create)
498(long which_clock, void *timer_event_spec, void *created_timer_id) {}
499
500POST_SYSCALL(timer_create)
501(long res, long which_clock, void *timer_event_spec, void *created_timer_id) {
502 if (res >= 0) {
503 if (timer_event_spec)
504 POST_WRITE(timer_event_spec, struct_sigevent_sz);
505 if (created_timer_id)
506 POST_WRITE(created_timer_id, sizeof(long));
507 }
508}
509
510PRE_SYSCALL(timer_gettime)(long timer_id, void *setting) {}
511
512POST_SYSCALL(timer_gettime)(long res, long timer_id, void *setting) {
513 if (res >= 0) {
514 if (setting)
515 POST_WRITE(setting, struct_itimerspec_sz);
516 }
517}
518
519PRE_SYSCALL(timer_getoverrun)(long timer_id) {}
520
521POST_SYSCALL(timer_getoverrun)(long res, long timer_id) {}
522
523PRE_SYSCALL(timer_settime)
524(long timer_id, long flags, const void *new_setting, void *old_setting) {
525 if (new_setting)
526 PRE_READ(new_setting, struct_itimerspec_sz);
527}
528
529POST_SYSCALL(timer_settime)
530(long res, long timer_id, long flags, const void *new_setting,
531 void *old_setting) {
532 if (res >= 0) {
533 if (old_setting)
534 POST_WRITE(old_setting, struct_itimerspec_sz);
535 }
536}
537
538PRE_SYSCALL(timer_delete)(long timer_id) {}
539
540POST_SYSCALL(timer_delete)(long res, long timer_id) {}
541
542PRE_SYSCALL(clock_settime)(long which_clock, const void *tp) {
543 if (tp)
544 PRE_READ(tp, struct_timespec_sz);
545}
546
547POST_SYSCALL(clock_settime)(long res, long which_clock, const void *tp) {}
548
549PRE_SYSCALL(clock_gettime)(long which_clock, void *tp) {}
550
551POST_SYSCALL(clock_gettime)(long res, long which_clock, void *tp) {
552 if (res >= 0) {
553 if (tp)
554 POST_WRITE(tp, struct_timespec_sz);
555 }
556}
557
558# if !SANITIZER_ANDROID
559PRE_SYSCALL(clock_adjtime)(long which_clock, void *tx) {}
560
561POST_SYSCALL(clock_adjtime)(long res, long which_clock, void *tx) {
562 if (res >= 0) {
563 if (tx)
564 POST_WRITE(tx, struct_timex_sz);
565 }
566}
567# endif
568
569PRE_SYSCALL(clock_getres)(long which_clock, void *tp) {}
570
571POST_SYSCALL(clock_getres)(long res, long which_clock, void *tp) {
572 if (res >= 0) {
573 if (tp)
574 POST_WRITE(tp, struct_timespec_sz);
575 }
576}
577
578PRE_SYSCALL(clock_nanosleep)
579(long which_clock, long flags, const void *rqtp, void *rmtp) {
580 if (rqtp)
581 PRE_READ(rqtp, struct_timespec_sz);
582}
583
584POST_SYSCALL(clock_nanosleep)
585(long res, long which_clock, long flags, const void *rqtp, void *rmtp) {
586 if (res >= 0) {
587 if (rmtp)
588 POST_WRITE(rmtp, struct_timespec_sz);
589 }
590}
591
592PRE_SYSCALL(nice)(long increment) {}
593
594POST_SYSCALL(nice)(long res, long increment) {}
595
596PRE_SYSCALL(sched_setscheduler)(long pid, long policy, void *param) {}
597
598POST_SYSCALL(sched_setscheduler)(long res, long pid, long policy, void *param) {
599 if (res >= 0) {
600 if (param)
601 POST_WRITE(param, struct_sched_param_sz);
602 }
603}
604
605PRE_SYSCALL(sched_setparam)(long pid, void *param) {
606 if (param)
607 PRE_READ(param, struct_sched_param_sz);
608}
609
610POST_SYSCALL(sched_setparam)(long res, long pid, void *param) {}
611
612PRE_SYSCALL(sched_getscheduler)(long pid) {}
613
614POST_SYSCALL(sched_getscheduler)(long res, long pid) {}
615
616PRE_SYSCALL(sched_getparam)(long pid, void *param) {}
617
618POST_SYSCALL(sched_getparam)(long res, long pid, void *param) {
619 if (res >= 0) {
620 if (param)
621 POST_WRITE(param, struct_sched_param_sz);
622 }
623}
624
625PRE_SYSCALL(sched_setaffinity)(long pid, long len, void *user_mask_ptr) {
626 if (user_mask_ptr)
627 PRE_READ(user_mask_ptr, len);
628}
629
630POST_SYSCALL(sched_setaffinity)
631(long res, long pid, long len, void *user_mask_ptr) {}
632
633PRE_SYSCALL(sched_getaffinity)(long pid, long len, void *user_mask_ptr) {}
634
635POST_SYSCALL(sched_getaffinity)
636(long res, long pid, long len, void *user_mask_ptr) {
637 if (res >= 0) {
638 if (user_mask_ptr)
639 POST_WRITE(user_mask_ptr, len);
640 }
641}
642
643PRE_SYSCALL(sched_yield)() {}
644
645POST_SYSCALL(sched_yield)(long res) {}
646
647PRE_SYSCALL(sched_get_priority_max)(long policy) {}
648
649POST_SYSCALL(sched_get_priority_max)(long res, long policy) {}
650
651PRE_SYSCALL(sched_get_priority_min)(long policy) {}
652
653POST_SYSCALL(sched_get_priority_min)(long res, long policy) {}
654
655PRE_SYSCALL(sched_rr_get_interval)(long pid, void *interval) {}
656
657POST_SYSCALL(sched_rr_get_interval)(long res, long pid, void *interval) {
658 if (res >= 0) {
659 if (interval)
660 POST_WRITE(interval, struct_timespec_sz);
661 }
662}
663
664PRE_SYSCALL(setpriority)(long which, long who, long niceval) {}
665
666POST_SYSCALL(setpriority)(long res, long which, long who, long niceval) {}
667
668PRE_SYSCALL(getpriority)(long which, long who) {}
669
670POST_SYSCALL(getpriority)(long res, long which, long who) {}
671
672PRE_SYSCALL(shutdown)(long arg0, long arg1) {}
673
674POST_SYSCALL(shutdown)(long res, long arg0, long arg1) {}
675
676PRE_SYSCALL(reboot)(long magic1, long magic2, long cmd, void *arg) {}
677
678POST_SYSCALL(reboot)(long res, long magic1, long magic2, long cmd, void *arg) {}
679
680PRE_SYSCALL(restart_syscall)() {}
681
682POST_SYSCALL(restart_syscall)(long res) {}
683
684PRE_SYSCALL(kexec_load)
685(long entry, long nr_segments, void *segments, long flags) {}
686
687POST_SYSCALL(kexec_load)
688(long res, long entry, long nr_segments, void *segments, long flags) {
689 if (res >= 0) {
690 if (segments)
691 POST_WRITE(segments, struct_kexec_segment_sz);
692 }
693}
694
695PRE_SYSCALL(exit)(long error_code) {}
696
697POST_SYSCALL(exit)(long res, long error_code) {}
698
699PRE_SYSCALL(exit_group)(long error_code) {}
700
701POST_SYSCALL(exit_group)(long res, long error_code) {}
702
703PRE_SYSCALL(wait4)(long pid, void *stat_addr, long options, void *ru) {}
704
705POST_SYSCALL(wait4)
706(long res, long pid, void *stat_addr, long options, void *ru) {
707 if (res >= 0) {
708 if (stat_addr)
709 POST_WRITE(stat_addr, sizeof(int));
710 if (ru)
711 POST_WRITE(ru, struct_rusage_sz);
712 }
713}
714
715PRE_SYSCALL(waitid)
716(long which, long pid, void *infop, long options, void *ru) {}
717
718POST_SYSCALL(waitid)
719(long res, long which, long pid, void *infop, long options, void *ru) {
720 if (res >= 0) {
721 if (infop)
722 POST_WRITE(infop, siginfo_t_sz);
723 if (ru)
724 POST_WRITE(ru, struct_rusage_sz);
725 }
726}
727
728PRE_SYSCALL(waitpid)(long pid, void *stat_addr, long options) {}
729
730POST_SYSCALL(waitpid)(long res, long pid, void *stat_addr, long options) {
731 if (res >= 0) {
732 if (stat_addr)
733 POST_WRITE(stat_addr, sizeof(int));
734 }
735}
736
737PRE_SYSCALL(set_tid_address)(void *tidptr) {}
738
739POST_SYSCALL(set_tid_address)(long res, void *tidptr) {
740 if (res >= 0) {
741 if (tidptr)
742 POST_WRITE(tidptr, sizeof(int));
743 }
744}
745
746PRE_SYSCALL(init_module)(void *umod, long len, const void *uargs) {
747 if (uargs)
748 PRE_READ(uargs, __sanitizer::internal_strlen((const char *)uargs) + 1);
749}
750
751POST_SYSCALL(init_module)(long res, void *umod, long len, const void *uargs) {}
752
753PRE_SYSCALL(delete_module)(const void *name_user, long flags) {
754 if (name_user)
755 PRE_READ(name_user,
756 __sanitizer::internal_strlen((const char *)name_user) + 1);
757}
758
759POST_SYSCALL(delete_module)(long res, const void *name_user, long flags) {}
760
761PRE_SYSCALL(rt_sigprocmask)(long how, void *set, void *oset, long sigsetsize) {}
762
763POST_SYSCALL(rt_sigprocmask)
764(long res, long how, kernel_sigset_t *set, kernel_sigset_t *oset,
765 long sigsetsize) {
766 if (res >= 0) {
767 if (set)
768 POST_WRITE(set, sigsetsize);
769 if (oset)
770 POST_WRITE(oset, sigsetsize);
771 }
772}
773
774PRE_SYSCALL(rt_sigpending)(void *set, long sigsetsize) {}
775
776POST_SYSCALL(rt_sigpending)(long res, kernel_sigset_t *set, long sigsetsize) {
777 if (res >= 0) {
778 if (set)
779 POST_WRITE(set, sigsetsize);
780 }
781}
782
783PRE_SYSCALL(rt_sigtimedwait)
784(const kernel_sigset_t *uthese, void *uinfo, const void *uts, long sigsetsize) {
785 if (uthese)
786 PRE_READ(uthese, sigsetsize);
787 if (uts)
788 PRE_READ(uts, struct_timespec_sz);
789}
790
791POST_SYSCALL(rt_sigtimedwait)
792(long res, const void *uthese, void *uinfo, const void *uts, long sigsetsize) {
793 if (res >= 0) {
794 if (uinfo)
795 POST_WRITE(uinfo, siginfo_t_sz);
796 }
797}
798
799PRE_SYSCALL(rt_tgsigqueueinfo)(long tgid, long pid, long sig, void *uinfo) {}
800
801POST_SYSCALL(rt_tgsigqueueinfo)
802(long res, long tgid, long pid, long sig, void *uinfo) {
803 if (res >= 0) {
804 if (uinfo)
805 POST_WRITE(uinfo, siginfo_t_sz);
806 }
807}
808
809PRE_SYSCALL(kill)(long pid, long sig) {}
810
811POST_SYSCALL(kill)(long res, long pid, long sig) {}
812
813PRE_SYSCALL(tgkill)(long tgid, long pid, long sig) {}
814
815POST_SYSCALL(tgkill)(long res, long tgid, long pid, long sig) {}
816
817PRE_SYSCALL(tkill)(long pid, long sig) {}
818
819POST_SYSCALL(tkill)(long res, long pid, long sig) {}
820
821PRE_SYSCALL(rt_sigqueueinfo)(long pid, long sig, void *uinfo) {}
822
823POST_SYSCALL(rt_sigqueueinfo)(long res, long pid, long sig, void *uinfo) {
824 if (res >= 0) {
825 if (uinfo)
826 POST_WRITE(uinfo, siginfo_t_sz);
827 }
828}
829
830PRE_SYSCALL(sgetmask)() {}
831
832POST_SYSCALL(sgetmask)(long res) {}
833
834PRE_SYSCALL(ssetmask)(long newmask) {}
835
836POST_SYSCALL(ssetmask)(long res, long newmask) {}
837
838PRE_SYSCALL(signal)(long sig, long handler) {}
839
840POST_SYSCALL(signal)(long res, long sig, long handler) {}
841
842PRE_SYSCALL(pause)() {}
843
844POST_SYSCALL(pause)(long res) {}
845
846PRE_SYSCALL(sync)() {}
847
848POST_SYSCALL(sync)(long res) {}
849
850PRE_SYSCALL(fsync)(long fd) {}
851
852POST_SYSCALL(fsync)(long res, long fd) {}
853
854PRE_SYSCALL(fdatasync)(long fd) {}
855
856POST_SYSCALL(fdatasync)(long res, long fd) {}
857
858PRE_SYSCALL(bdflush)(long func, long data) {}
859
860POST_SYSCALL(bdflush)(long res, long func, long data) {}
861
862PRE_SYSCALL(mount)
863(void *dev_name, void *dir_name, void *type, long flags, void *data) {}
864
865POST_SYSCALL(mount)
866(long res, void *dev_name, void *dir_name, void *type, long flags, void *data) {
867 if (res >= 0) {
868 if (dev_name)
869 POST_WRITE(dev_name,
870 __sanitizer::internal_strlen((const char *)dev_name) + 1);
871 if (dir_name)
872 POST_WRITE(dir_name,
873 __sanitizer::internal_strlen((const char *)dir_name) + 1);
874 if (type)
875 POST_WRITE(type, __sanitizer::internal_strlen((const char *)type) + 1);
876 }
877}
878
879PRE_SYSCALL(umount)(void *name, long flags) {}
880
881POST_SYSCALL(umount)(long res, void *name, long flags) {
882 if (res >= 0) {
883 if (name)
884 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
885 }
886}
887
888PRE_SYSCALL(oldumount)(void *name) {}
889
890POST_SYSCALL(oldumount)(long res, void *name) {
891 if (res >= 0) {
892 if (name)
893 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
894 }
895}
896
897PRE_SYSCALL(truncate)(const void *path, long length) {
898 if (path)
899 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
900}
901
902POST_SYSCALL(truncate)(long res, const void *path, long length) {}
903
904PRE_SYSCALL(ftruncate)(long fd, long length) {}
905
906POST_SYSCALL(ftruncate)(long res, long fd, long length) {}
907
908PRE_SYSCALL(stat)(const void *filename, void *statbuf) {
909 if (filename)
910 PRE_READ(filename,
911 __sanitizer::internal_strlen((const char *)filename) + 1);
912}
913
914POST_SYSCALL(stat)(long res, const void *filename, void *statbuf) {
915 if (res >= 0) {
916 if (statbuf)
917 POST_WRITE(statbuf, struct___old_kernel_stat_sz);
918 }
919}
920
921# if !SANITIZER_ANDROID
922PRE_SYSCALL(statfs)(const void *path, void *buf) {
923 if (path)
924 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
925}
926
927POST_SYSCALL(statfs)(long res, const void *path, void *buf) {
928 if (res >= 0) {
929 if (buf)
930 POST_WRITE(buf, struct_statfs_sz);
931 }
932}
933
934PRE_SYSCALL(fstatfs)(long fd, void *buf) {}
935
936POST_SYSCALL(fstatfs)(long res, long fd, void *buf) {
937 if (res >= 0) {
938 if (buf)
939 POST_WRITE(buf, struct_statfs_sz);
940 }
941}
942# endif // !SANITIZER_ANDROID
943
944# if SANITIZER_GLIBC
945PRE_SYSCALL(statfs64)(const void *path, long sz, void *buf) {
946 if (path)
947 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
948}
949
950POST_SYSCALL(statfs64)(long res, const void *path, long sz, void *buf) {
951 if (res >= 0) {
952 if (buf)
953 POST_WRITE(buf, struct_statfs64_sz);
954 }
955}
956
957PRE_SYSCALL(fstatfs64)(long fd, long sz, void *buf) {}
958
959POST_SYSCALL(fstatfs64)(long res, long fd, long sz, void *buf) {
960 if (res >= 0) {
961 if (buf)
962 POST_WRITE(buf, struct_statfs64_sz);
963 }
964}
965# endif // SANITIZER_GLIBC
966
967PRE_SYSCALL(lstat)(const void *filename, void *statbuf) {
968 if (filename)
969 PRE_READ(filename,
970 __sanitizer::internal_strlen((const char *)filename) + 1);
971}
972
973POST_SYSCALL(lstat)(long res, const void *filename, void *statbuf) {
974 if (res >= 0) {
975 if (statbuf)
976 POST_WRITE(statbuf, struct___old_kernel_stat_sz);
977 }
978}
979
980PRE_SYSCALL(fstat)(long fd, void *statbuf) {}
981
982POST_SYSCALL(fstat)(long res, long fd, void *statbuf) {
983 if (res >= 0) {
984 if (statbuf)
985 POST_WRITE(statbuf, struct___old_kernel_stat_sz);
986 }
987}
988
989PRE_SYSCALL(newstat)(const void *filename, void *statbuf) {
990 if (filename)
991 PRE_READ(filename,
992 __sanitizer::internal_strlen((const char *)filename) + 1);
993}
994
995POST_SYSCALL(newstat)(long res, const void *filename, void *statbuf) {
996 if (res >= 0) {
997 if (statbuf)
998 POST_WRITE(statbuf, struct_kernel_stat_sz);
999 }
1000}
1001
1002PRE_SYSCALL(newlstat)(const void *filename, void *statbuf) {
1003 if (filename)
1004 PRE_READ(filename,
1005 __sanitizer::internal_strlen((const char *)filename) + 1);
1006}
1007
1008POST_SYSCALL(newlstat)(long res, const void *filename, void *statbuf) {
1009 if (res >= 0) {
1010 if (statbuf)
1011 POST_WRITE(statbuf, struct_kernel_stat_sz);
1012 }
1013}
1014
1015PRE_SYSCALL(newfstat)(long fd, void *statbuf) {}
1016
1017POST_SYSCALL(newfstat)(long res, long fd, void *statbuf) {
1018 if (res >= 0) {
1019 if (statbuf)
1020 POST_WRITE(statbuf, struct_kernel_stat_sz);
1021 }
1022}
1023
1024# if SANITIZER_GLIBC
1025PRE_SYSCALL(ustat)(long dev, void *ubuf) {}
1026
1027POST_SYSCALL(ustat)(long res, long dev, void *ubuf) {
1028 if (res >= 0) {
1029 if (ubuf)
1030 POST_WRITE(ubuf, struct_ustat_sz);
1031 }
1032}
1033# endif // SANITIZER_GLIBC
1034
1035PRE_SYSCALL(stat64)(const void *filename, void *statbuf) {
1036 if (filename)
1037 PRE_READ(filename,
1038 __sanitizer::internal_strlen((const char *)filename) + 1);
1039}
1040
1041POST_SYSCALL(stat64)(long res, const void *filename, void *statbuf) {
1042 if (res >= 0) {
1043 if (statbuf)
1044 POST_WRITE(statbuf, struct_kernel_stat64_sz);
1045 }
1046}
1047
1048PRE_SYSCALL(fstat64)(long fd, void *statbuf) {}
1049
1050POST_SYSCALL(fstat64)(long res, long fd, void *statbuf) {
1051 if (res >= 0) {
1052 if (statbuf)
1053 POST_WRITE(statbuf, struct_kernel_stat64_sz);
1054 }
1055}
1056
1057PRE_SYSCALL(lstat64)(const void *filename, void *statbuf) {
1058 if (filename)
1059 PRE_READ(filename,
1060 __sanitizer::internal_strlen((const char *)filename) + 1);
1061}
1062
1063POST_SYSCALL(lstat64)(long res, const void *filename, void *statbuf) {
1064 if (res >= 0) {
1065 if (statbuf)
1066 POST_WRITE(statbuf, struct_kernel_stat64_sz);
1067 }
1068}
1069
1070PRE_SYSCALL(setxattr)
1071(const void *path, const void *name, const void *value, long size, long flags) {
1072 if (path)
1073 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1074 if (name)
1075 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1076 if (value)
1077 PRE_READ(value, size);
1078}
1079
1080POST_SYSCALL(setxattr)
1081(long res, const void *path, const void *name, const void *value, long size,
1082 long flags) {}
1083
1084PRE_SYSCALL(lsetxattr)
1085(const void *path, const void *name, const void *value, long size, long flags) {
1086 if (path)
1087 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1088 if (name)
1089 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1090 if (value)
1091 PRE_READ(value, size);
1092}
1093
1094POST_SYSCALL(lsetxattr)
1095(long res, const void *path, const void *name, const void *value, long size,
1096 long flags) {}
1097
1098PRE_SYSCALL(fsetxattr)
1099(long fd, const void *name, const void *value, long size, long flags) {
1100 if (name)
1101 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1102 if (value)
1103 PRE_READ(value, size);
1104}
1105
1106POST_SYSCALL(fsetxattr)
1107(long res, long fd, const void *name, const void *value, long size,
1108 long flags) {}
1109
1110PRE_SYSCALL(getxattr)
1111(const void *path, const void *name, void *value, long size) {
1112 if (path)
1113 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1114 if (name)
1115 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1116}
1117
1118POST_SYSCALL(getxattr)
1119(long res, const void *path, const void *name, void *value, long size) {
1120 if (size && res > 0) {
1121 if (value)
1122 POST_WRITE(value, res);
1123 }
1124}
1125
1126PRE_SYSCALL(lgetxattr)
1127(const void *path, const void *name, void *value, long size) {
1128 if (path)
1129 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1130 if (name)
1131 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1132}
1133
1134POST_SYSCALL(lgetxattr)
1135(long res, const void *path, const void *name, void *value, long size) {
1136 if (size && res > 0) {
1137 if (value)
1138 POST_WRITE(value, res);
1139 }
1140}
1141
1142PRE_SYSCALL(fgetxattr)(long fd, const void *name, void *value, long size) {
1143 if (name)
1144 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1145}
1146
1147POST_SYSCALL(fgetxattr)
1148(long res, long fd, const void *name, void *value, long size) {
1149 if (size && res > 0) {
1150 if (value)
1151 POST_WRITE(value, res);
1152 }
1153}
1154
1155PRE_SYSCALL(listxattr)(const void *path, void *list, long size) {
1156 if (path)
1157 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1158}
1159
1160POST_SYSCALL(listxattr)(long res, const void *path, void *list, long size) {
1161 if (size && res > 0) {
1162 if (list)
1163 POST_WRITE(list, res);
1164 }
1165}
1166
1167PRE_SYSCALL(llistxattr)(const void *path, void *list, long size) {
1168 if (path)
1169 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1170}
1171
1172POST_SYSCALL(llistxattr)(long res, const void *path, void *list, long size) {
1173 if (size && res > 0) {
1174 if (list)
1175 POST_WRITE(list, res);
1176 }
1177}
1178
1179PRE_SYSCALL(flistxattr)(long fd, void *list, long size) {}
1180
1181POST_SYSCALL(flistxattr)(long res, long fd, void *list, long size) {
1182 if (size && res > 0) {
1183 if (list)
1184 POST_WRITE(list, res);
1185 }
1186}
1187
1188PRE_SYSCALL(removexattr)(const void *path, const void *name) {
1189 if (path)
1190 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1191 if (name)
1192 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1193}
1194
1195POST_SYSCALL(removexattr)(long res, const void *path, const void *name) {}
1196
1197PRE_SYSCALL(lremovexattr)(const void *path, const void *name) {
1198 if (path)
1199 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1200 if (name)
1201 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1202}
1203
1204POST_SYSCALL(lremovexattr)(long res, const void *path, const void *name) {}
1205
1206PRE_SYSCALL(fremovexattr)(long fd, const void *name) {
1207 if (name)
1208 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1209}
1210
1211POST_SYSCALL(fremovexattr)(long res, long fd, const void *name) {}
1212
1213PRE_SYSCALL(brk)(long brk) {}
1214
1215POST_SYSCALL(brk)(long res, long brk) {}
1216
1217PRE_SYSCALL(mprotect)(long start, long len, long prot) {}
1218
1219POST_SYSCALL(mprotect)(long res, long start, long len, long prot) {}
1220
1221PRE_SYSCALL(mremap)
1222(long addr, long old_len, long new_len, long flags, long new_addr) {}
1223
1224POST_SYSCALL(mremap)
1225(long res, long addr, long old_len, long new_len, long flags, long new_addr) {}
1226
1227PRE_SYSCALL(remap_file_pages)
1228(long start, long size, long prot, long pgoff, long flags) {}
1229
1230POST_SYSCALL(remap_file_pages)
1231(long res, long start, long size, long prot, long pgoff, long flags) {}
1232
1233PRE_SYSCALL(msync)(long start, long len, long flags) {}
1234
1235POST_SYSCALL(msync)(long res, long start, long len, long flags) {}
1236
1237PRE_SYSCALL(munmap)(long addr, long len) {}
1238
1239POST_SYSCALL(munmap)(long res, long addr, long len) {}
1240
1241PRE_SYSCALL(mlock)(long start, long len) {}
1242
1243POST_SYSCALL(mlock)(long res, long start, long len) {}
1244
1245PRE_SYSCALL(munlock)(long start, long len) {}
1246
1247POST_SYSCALL(munlock)(long res, long start, long len) {}
1248
1249PRE_SYSCALL(mlockall)(long flags) {}
1250
1251POST_SYSCALL(mlockall)(long res, long flags) {}
1252
1253PRE_SYSCALL(munlockall)() {}
1254
1255POST_SYSCALL(munlockall)(long res) {}
1256
1257PRE_SYSCALL(madvise)(long start, long len, long behavior) {}
1258
1259POST_SYSCALL(madvise)(long res, long start, long len, long behavior) {}
1260
1261PRE_SYSCALL(mincore)(long start, long len, void *vec) {}
1262
1263POST_SYSCALL(mincore)(long res, long start, long len, void *vec) {
1264 if (res >= 0) {
1265 if (vec) {
1266 POST_WRITE(vec, (len + GetPageSizeCached() - 1) / GetPageSizeCached());
1267 }
1268 }
1269}
1270
1271PRE_SYSCALL(pivot_root)(const void *new_root, const void *put_old) {
1272 if (new_root)
1273 PRE_READ(new_root,
1274 __sanitizer::internal_strlen((const char *)new_root) + 1);
1275 if (put_old)
1276 PRE_READ(put_old, __sanitizer::internal_strlen((const char *)put_old) + 1);
1277}
1278
1279POST_SYSCALL(pivot_root)(long res, const void *new_root, const void *put_old) {}
1280
1281PRE_SYSCALL(chroot)(const void *filename) {
1282 if (filename)
1283 PRE_READ(filename,
1284 __sanitizer::internal_strlen((const char *)filename) + 1);
1285}
1286
1287POST_SYSCALL(chroot)(long res, const void *filename) {}
1288
1289PRE_SYSCALL(mknod)(const void *filename, long mode, long dev) {
1290 if (filename)
1291 PRE_READ(filename,
1292 __sanitizer::internal_strlen((const char *)filename) + 1);
1293}
1294
1295POST_SYSCALL(mknod)(long res, const void *filename, long mode, long dev) {}
1296
1297PRE_SYSCALL(link)(const void *oldname, const void *newname) {
1298 if (oldname)
1299 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
1300 if (newname)
1301 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
1302}
1303
1304POST_SYSCALL(link)(long res, const void *oldname, const void *newname) {}
1305
1306PRE_SYSCALL(symlink)(const void *old, const void *new_) {
1307 if (old)
1308 PRE_READ(old, __sanitizer::internal_strlen((const char *)old) + 1);
1309 if (new_)
1310 PRE_READ(new_, __sanitizer::internal_strlen((const char *)new_) + 1);
1311}
1312
1313POST_SYSCALL(symlink)(long res, const void *old, const void *new_) {}
1314
1315PRE_SYSCALL(unlink)(const void *pathname) {
1316 if (pathname)
1317 PRE_READ(pathname,
1318 __sanitizer::internal_strlen((const char *)pathname) + 1);
1319}
1320
1321POST_SYSCALL(unlink)(long res, const void *pathname) {}
1322
1323PRE_SYSCALL(rename)(const void *oldname, const void *newname) {
1324 if (oldname)
1325 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
1326 if (newname)
1327 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
1328}
1329
1330POST_SYSCALL(rename)(long res, const void *oldname, const void *newname) {}
1331
1332PRE_SYSCALL(chmod)(const void *filename, long mode) {
1333 if (filename)
1334 PRE_READ(filename,
1335 __sanitizer::internal_strlen((const char *)filename) + 1);
1336}
1337
1338POST_SYSCALL(chmod)(long res, const void *filename, long mode) {}
1339
1340PRE_SYSCALL(fchmod)(long fd, long mode) {}
1341
1342POST_SYSCALL(fchmod)(long res, long fd, long mode) {}
1343
1344PRE_SYSCALL(fcntl)(long fd, long cmd, long arg) {}
1345
1346POST_SYSCALL(fcntl)(long res, long fd, long cmd, long arg) {}
1347
1348PRE_SYSCALL(fcntl64)(long fd, long cmd, long arg) {}
1349
1350POST_SYSCALL(fcntl64)(long res, long fd, long cmd, long arg) {}
1351
1352PRE_SYSCALL(pipe)(void *fildes) {}
1353
1354POST_SYSCALL(pipe)(long res, void *fildes) {
1355 if (res >= 0)
1356 if (fildes)
1357 POST_WRITE(fildes, sizeof(int) * 2);
1358}
1359
1360PRE_SYSCALL(pipe2)(void *fildes, long flags) {}
1361
1362POST_SYSCALL(pipe2)(long res, void *fildes, long flags) {
1363 if (res >= 0)
1364 if (fildes)
1365 POST_WRITE(fildes, sizeof(int) * 2);
1366}
1367
1368PRE_SYSCALL(dup)(long fildes) {}
1369
1370POST_SYSCALL(dup)(long res, long fildes) {}
1371
1372PRE_SYSCALL(dup2)(long oldfd, long newfd) {}
1373
1374POST_SYSCALL(dup2)(long res, long oldfd, long newfd) {}
1375
1376PRE_SYSCALL(dup3)(long oldfd, long newfd, long flags) {}
1377
1378POST_SYSCALL(dup3)(long res, long oldfd, long newfd, long flags) {}
1379
1380PRE_SYSCALL(ioperm)(long from, long num, long on) {}
1381
1382POST_SYSCALL(ioperm)(long res, long from, long num, long on) {}
1383
1384PRE_SYSCALL(ioctl)(long fd, long cmd, long arg) {}
1385
1386POST_SYSCALL(ioctl)(long res, long fd, long cmd, long arg) {}
1387
1388PRE_SYSCALL(flock)(long fd, long cmd) {}
1389
1390POST_SYSCALL(flock)(long res, long fd, long cmd) {}
1391
1392PRE_SYSCALL(io_setup)(long nr_reqs, void **ctx) {
1393 if (ctx)
1394 PRE_WRITE(ctx, sizeof(*ctx));
1395}
1396
1397POST_SYSCALL(io_setup)(long res, long nr_reqs, void **ctx) {
1398 if (res >= 0 && ctx) {
1399 POST_WRITE(ctx, sizeof(*ctx));
1400 // (*ctx) is actually a pointer to a kernel mapped page, and there are
1401 // people out there who are crazy enough to peek into that page's 32-byte
1402 // header.
1403 if (*ctx)
1404 POST_WRITE(*ctx, 32);
1405 }
1406}
1407
1408PRE_SYSCALL(io_destroy)(long ctx) {}
1409
1410POST_SYSCALL(io_destroy)(long res, long ctx) {}
1411
1412PRE_SYSCALL(io_getevents)
1413(long ctx_id, long min_nr, long nr, __sanitizer_io_event *ioevpp,
1414 void *timeout) {
1415 if (timeout)
1416 PRE_READ(timeout, struct_timespec_sz);
1417}
1418
1419POST_SYSCALL(io_getevents)
1420(long res, long ctx_id, long min_nr, long nr, __sanitizer_io_event *ioevpp,
1421 void *timeout) {
1422 if (res >= 0) {
1423 if (ioevpp)
1424 POST_WRITE(ioevpp, res * sizeof(*ioevpp));
1425 if (timeout)
1426 POST_WRITE(timeout, struct_timespec_sz);
1427 }
1428 for (long i = 0; i < res; i++) {
1429 // We synchronize io_submit -> io_getevents/io_cancel using the
1430 // user-provided data context. Data is not necessary a pointer, it can be
1431 // an int, 0 or whatever; acquire/release will correctly handle this.
1432 // This scheme can lead to false negatives, e.g. when all operations
1433 // synchronize on 0. But there does not seem to be a better solution
1434 // (except wrapping all operations in own context, which is unreliable).
1435 // We can not reliably extract fildes in io_getevents.
1436 COMMON_SYSCALL_ACQUIRE((void *)ioevpp[i].data);
1437 }
1438}
1439
1440PRE_SYSCALL(io_submit)(long ctx_id, long nr, __sanitizer_iocb **iocbpp) {
1441 for (long i = 0; i < nr; ++i) {
1442 uptr op = iocbpp[i]->aio_lio_opcode;
1443 void *data = (void *)iocbpp[i]->aio_data;
1444 void *buf = (void *)iocbpp[i]->aio_buf;
1445 uptr len = (uptr)iocbpp[i]->aio_nbytes;
1446 if (op == iocb_cmd_pwrite && buf && len) {
1447 PRE_READ(buf, len);
1448 } else if (op == iocb_cmd_pread && buf && len) {
1449 POST_WRITE(buf, len);
1450 } else if (op == iocb_cmd_pwritev) {
1451 __sanitizer_iovec *iovec = (__sanitizer_iovec *)buf;
1452 for (uptr v = 0; v < len; v++)
1453 PRE_READ(iovec[v].iov_base, iovec[v].iov_len);
1454 } else if (op == iocb_cmd_preadv) {
1455 __sanitizer_iovec *iovec = (__sanitizer_iovec *)buf;
1456 for (uptr v = 0; v < len; v++)
1457 POST_WRITE(iovec[v].iov_base, iovec[v].iov_len);
1458 }
1459 // See comment in io_getevents.
1460 COMMON_SYSCALL_RELEASE(data);
1461 }
1462}
1463
1464POST_SYSCALL(io_submit)
1465(long res, long ctx_id, long nr, __sanitizer_iocb **iocbpp) {}
1466
1467PRE_SYSCALL(io_cancel)
1468(long ctx_id, __sanitizer_iocb *iocb, __sanitizer_io_event *result) {}
1469
1470POST_SYSCALL(io_cancel)
1471(long res, long ctx_id, __sanitizer_iocb *iocb, __sanitizer_io_event *result) {
1472 if (res == 0) {
1473 if (result) {
1474 // See comment in io_getevents.
1475 COMMON_SYSCALL_ACQUIRE((void *)result->data);
1476 POST_WRITE(result, sizeof(*result));
1477 }
1478 if (iocb)
1479 POST_WRITE(iocb, sizeof(*iocb));
1480 }
1481}
1482
1483PRE_SYSCALL(sendfile)(long out_fd, long in_fd, void *offset, long count) {}
1484
1485POST_SYSCALL(sendfile)
1486(long res, long out_fd, long in_fd, __sanitizer___kernel_off_t *offset,
1487 long count) {
1488 if (res >= 0) {
1489 if (offset)
1490 POST_WRITE(offset, sizeof(*offset));
1491 }
1492}
1493
1494PRE_SYSCALL(sendfile64)(long out_fd, long in_fd, void *offset, long count) {}
1495
1496POST_SYSCALL(sendfile64)
1497(long res, long out_fd, long in_fd, __sanitizer___kernel_loff_t *offset,
1498 long count) {
1499 if (res >= 0) {
1500 if (offset)
1501 POST_WRITE(offset, sizeof(*offset));
1502 }
1503}
1504
1505PRE_SYSCALL(readlink)(const void *path, void *buf, long bufsiz) {
1506 if (path)
1507 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1508}
1509
1510POST_SYSCALL(readlink)(long res, const void *path, void *buf, long bufsiz) {
1511 if (res >= 0) {
1512 if (buf)
1513 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
1514 }
1515}
1516
1517PRE_SYSCALL(creat)(const void *pathname, long mode) {
1518 if (pathname)
1519 PRE_READ(pathname,
1520 __sanitizer::internal_strlen((const char *)pathname) + 1);
1521}
1522
1523POST_SYSCALL(creat)(long res, const void *pathname, long mode) {}
1524
1525PRE_SYSCALL(open)(const void *filename, long flags, long mode) {
1526 if (filename)
1527 PRE_READ(filename,
1528 __sanitizer::internal_strlen((const char *)filename) + 1);
1529}
1530
1531POST_SYSCALL(open)(long res, const void *filename, long flags, long mode) {}
1532
1533PRE_SYSCALL(close)(long fd) { COMMON_SYSCALL_FD_CLOSE((int)fd); }
1534
1535POST_SYSCALL(close)(long res, long fd) {}
1536
1537PRE_SYSCALL(access)(const void *filename, long mode) {
1538 if (filename)
1539 PRE_READ(filename,
1540 __sanitizer::internal_strlen((const char *)filename) + 1);
1541}
1542
1543POST_SYSCALL(access)(long res, const void *filename, long mode) {}
1544
1545PRE_SYSCALL(vhangup)() {}
1546
1547POST_SYSCALL(vhangup)(long res) {}
1548
1549PRE_SYSCALL(chown)(const void *filename, long user, long group) {
1550 if (filename)
1551 PRE_READ(filename,
1552 __sanitizer::internal_strlen((const char *)filename) + 1);
1553}
1554
1555POST_SYSCALL(chown)(long res, const void *filename, long user, long group) {}
1556
1557PRE_SYSCALL(lchown)(const void *filename, long user, long group) {
1558 if (filename)
1559 PRE_READ(filename,
1560 __sanitizer::internal_strlen((const char *)filename) + 1);
1561}
1562
1563POST_SYSCALL(lchown)(long res, const void *filename, long user, long group) {}
1564
1565PRE_SYSCALL(fchown)(long fd, long user, long group) {}
1566
1567POST_SYSCALL(fchown)(long res, long fd, long user, long group) {}
1568
1569# if SANITIZER_USES_UID16_SYSCALLS
1570PRE_SYSCALL(chown16)(const void *filename, long user, long group) {
1571 if (filename)
1572 PRE_READ(filename,
1573 __sanitizer::internal_strlen((const char *)filename) + 1);
1574}
1575
1576POST_SYSCALL(chown16)(long res, const void *filename, long user, long group) {}
1577
1578PRE_SYSCALL(lchown16)(const void *filename, long user, long group) {
1579 if (filename)
1580 PRE_READ(filename,
1581 __sanitizer::internal_strlen((const char *)filename) + 1);
1582}
1583
1584POST_SYSCALL(lchown16)(long res, const void *filename, long user, long group) {}
1585
1586PRE_SYSCALL(fchown16)(long fd, long user, long group) {}
1587
1588POST_SYSCALL(fchown16)(long res, long fd, long user, long group) {}
1589
1590PRE_SYSCALL(setregid16)(long rgid, long egid) {}
1591
1592POST_SYSCALL(setregid16)(long res, long rgid, long egid) {}
1593
1594PRE_SYSCALL(setgid16)(long gid) {}
1595
1596POST_SYSCALL(setgid16)(long res, long gid) {}
1597
1598PRE_SYSCALL(setreuid16)(long ruid, long euid) {}
1599
1600POST_SYSCALL(setreuid16)(long res, long ruid, long euid) {}
1601
1602PRE_SYSCALL(setuid16)(long uid) {}
1603
1604POST_SYSCALL(setuid16)(long res, long uid) {}
1605
1606PRE_SYSCALL(setresuid16)(long ruid, long euid, long suid) {}
1607
1608POST_SYSCALL(setresuid16)(long res, long ruid, long euid, long suid) {}
1609
1610PRE_SYSCALL(getresuid16)(void *ruid, void *euid, void *suid) {}
1611
1612POST_SYSCALL(getresuid16)
1613(long res, __sanitizer___kernel_old_uid_t *ruid,
1614 __sanitizer___kernel_old_uid_t *euid, __sanitizer___kernel_old_uid_t *suid) {
1615 if (res >= 0) {
1616 if (ruid)
1617 POST_WRITE(ruid, sizeof(*ruid));
1618 if (euid)
1619 POST_WRITE(euid, sizeof(*euid));
1620 if (suid)
1621 POST_WRITE(suid, sizeof(*suid));
1622 }
1623}
1624
1625PRE_SYSCALL(setresgid16)(long rgid, long egid, long sgid) {}
1626
1627POST_SYSCALL(setresgid16)(long res, long rgid, long egid, long sgid) {}
1628
1629PRE_SYSCALL(getresgid16)(void *rgid, void *egid, void *sgid) {}
1630
1631POST_SYSCALL(getresgid16)
1632(long res, __sanitizer___kernel_old_gid_t *rgid,
1633 __sanitizer___kernel_old_gid_t *egid, __sanitizer___kernel_old_gid_t *sgid) {
1634 if (res >= 0) {
1635 if (rgid)
1636 POST_WRITE(rgid, sizeof(*rgid));
1637 if (egid)
1638 POST_WRITE(egid, sizeof(*egid));
1639 if (sgid)
1640 POST_WRITE(sgid, sizeof(*sgid));
1641 }
1642}
1643
1644PRE_SYSCALL(setfsuid16)(long uid) {}
1645
1646POST_SYSCALL(setfsuid16)(long res, long uid) {}
1647
1648PRE_SYSCALL(setfsgid16)(long gid) {}
1649
1650POST_SYSCALL(setfsgid16)(long res, long gid) {}
1651
1652PRE_SYSCALL(getgroups16)
1653(long gidsetsize, __sanitizer___kernel_old_gid_t *grouplist) {}
1654
1655POST_SYSCALL(getgroups16)
1656(long res, long gidsetsize, __sanitizer___kernel_old_gid_t *grouplist) {
1657 if (res >= 0) {
1658 if (grouplist)
1659 POST_WRITE(grouplist, res * sizeof(*grouplist));
1660 }
1661}
1662
1663PRE_SYSCALL(setgroups16)
1664(long gidsetsize, __sanitizer___kernel_old_gid_t *grouplist) {
1665 if (grouplist)
1666 POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
1667}
1668
1669POST_SYSCALL(setgroups16)
1670(long res, long gidsetsize, __sanitizer___kernel_old_gid_t *grouplist) {}
1671
1672PRE_SYSCALL(getuid16)() {}
1673
1674POST_SYSCALL(getuid16)(long res) {}
1675
1676PRE_SYSCALL(geteuid16)() {}
1677
1678POST_SYSCALL(geteuid16)(long res) {}
1679
1680PRE_SYSCALL(getgid16)() {}
1681
1682POST_SYSCALL(getgid16)(long res) {}
1683
1684PRE_SYSCALL(getegid16)() {}
1685
1686POST_SYSCALL(getegid16)(long res) {}
1687# endif // SANITIZER_USES_UID16_SYSCALLS
1688
1689PRE_SYSCALL(utime)(void *filename, void *times) {}
1690
1691POST_SYSCALL(utime)(long res, void *filename, void *times) {
1692 if (res >= 0) {
1693 if (filename)
1694 POST_WRITE(filename,
1695 __sanitizer::internal_strlen((const char *)filename) + 1);
1696 if (times)
1697 POST_WRITE(times, struct_utimbuf_sz);
1698 }
1699}
1700
1701PRE_SYSCALL(utimes)(void *filename, void *utimes) {}
1702
1703POST_SYSCALL(utimes)(long res, void *filename, void *utimes) {
1704 if (res >= 0) {
1705 if (filename)
1706 POST_WRITE(filename,
1707 __sanitizer::internal_strlen((const char *)filename) + 1);
1708 if (utimes)
1709 POST_WRITE(utimes, timeval_sz);
1710 }
1711}
1712
1713PRE_SYSCALL(lseek)(long fd, long offset, long origin) {}
1714
1715POST_SYSCALL(lseek)(long res, long fd, long offset, long origin) {}
1716
1717PRE_SYSCALL(llseek)
1718(long fd, long offset_high, long offset_low, void *result, long origin) {}
1719
1720POST_SYSCALL(llseek)
1721(long res, long fd, long offset_high, long offset_low, void *result,
1722 long origin) {
1723 if (res >= 0) {
1724 if (result)
1725 POST_WRITE(result, sizeof(long long));
1726 }
1727}
1728
1729PRE_SYSCALL(readv)(long fd, const __sanitizer_iovec *vec, long vlen) {}
1730
1731POST_SYSCALL(readv)
1732(long res, long fd, const __sanitizer_iovec *vec, long vlen) {
1733 if (res >= 0) {
1734 if (vec)
1735 kernel_write_iovec(iovec: vec, iovlen: vlen, maxlen: res);
1736 }
1737}
1738
1739PRE_SYSCALL(write)(long fd, const void *buf, long count) {
1740 if (buf)
1741 PRE_READ(buf, count);
1742}
1743
1744POST_SYSCALL(write)(long res, long fd, const void *buf, long count) {}
1745
1746PRE_SYSCALL(writev)(long fd, const __sanitizer_iovec *vec, long vlen) {}
1747
1748POST_SYSCALL(writev)
1749(long res, long fd, const __sanitizer_iovec *vec, long vlen) {
1750 if (res >= 0) {
1751 if (vec)
1752 kernel_read_iovec(iovec: vec, iovlen: vlen, maxlen: res);
1753 }
1754}
1755
1756# ifdef _LP64
1757PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos) {}
1758
1759POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos) {
1760 if (res >= 0) {
1761 if (buf)
1762 POST_WRITE(buf, res);
1763 }
1764}
1765
1766PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos) {
1767 if (buf)
1768 PRE_READ(buf, count);
1769}
1770
1771POST_SYSCALL(pwrite64)
1772(long res, long fd, const void *buf, long count, long pos) {}
1773# else
1774PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos0, long pos1) {}
1775
1776POST_SYSCALL(pread64)
1777(long res, long fd, void *buf, long count, long pos0, long pos1) {
1778 if (res >= 0) {
1779 if (buf)
1780 POST_WRITE(buf, res);
1781 }
1782}
1783
1784PRE_SYSCALL(pwrite64)
1785(long fd, const void *buf, long count, long pos0, long pos1) {
1786 if (buf)
1787 PRE_READ(buf, count);
1788}
1789
1790POST_SYSCALL(pwrite64)
1791(long res, long fd, const void *buf, long count, long pos0, long pos1) {}
1792# endif
1793
1794PRE_SYSCALL(preadv)
1795(long fd, const __sanitizer_iovec *vec, long vlen, long pos_l, long pos_h) {}
1796
1797POST_SYSCALL(preadv)
1798(long res, long fd, const __sanitizer_iovec *vec, long vlen, long pos_l,
1799 long pos_h) {
1800 if (res >= 0) {
1801 if (vec)
1802 kernel_write_iovec(iovec: vec, iovlen: vlen, maxlen: res);
1803 }
1804}
1805
1806PRE_SYSCALL(pwritev)
1807(long fd, const __sanitizer_iovec *vec, long vlen, long pos_l, long pos_h) {}
1808
1809POST_SYSCALL(pwritev)
1810(long res, long fd, const __sanitizer_iovec *vec, long vlen, long pos_l,
1811 long pos_h) {
1812 if (res >= 0) {
1813 if (vec)
1814 kernel_read_iovec(iovec: vec, iovlen: vlen, maxlen: res);
1815 }
1816}
1817
1818PRE_SYSCALL(getcwd)(void *buf, long size) {}
1819
1820POST_SYSCALL(getcwd)(long res, void *buf, long size) {
1821 if (res >= 0) {
1822 if (buf)
1823 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
1824 }
1825}
1826
1827PRE_SYSCALL(mkdir)(const void *pathname, long mode) {
1828 if (pathname)
1829 PRE_READ(pathname,
1830 __sanitizer::internal_strlen((const char *)pathname) + 1);
1831}
1832
1833POST_SYSCALL(mkdir)(long res, const void *pathname, long mode) {}
1834
1835PRE_SYSCALL(chdir)(const void *filename) {
1836 if (filename)
1837 PRE_READ(filename,
1838 __sanitizer::internal_strlen((const char *)filename) + 1);
1839}
1840
1841POST_SYSCALL(chdir)(long res, const void *filename) {}
1842
1843PRE_SYSCALL(fchdir)(long fd) {}
1844
1845POST_SYSCALL(fchdir)(long res, long fd) {}
1846
1847PRE_SYSCALL(rmdir)(const void *pathname) {
1848 if (pathname)
1849 PRE_READ(pathname,
1850 __sanitizer::internal_strlen((const char *)pathname) + 1);
1851}
1852
1853POST_SYSCALL(rmdir)(long res, const void *pathname) {}
1854
1855PRE_SYSCALL(lookup_dcookie)(u64 cookie64, void *buf, long len) {}
1856
1857POST_SYSCALL(lookup_dcookie)(long res, u64 cookie64, void *buf, long len) {
1858 if (res >= 0) {
1859 if (buf)
1860 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
1861 }
1862}
1863
1864PRE_SYSCALL(quotactl)(long cmd, const void *special, long id, void *addr) {
1865 if (special)
1866 PRE_READ(special, __sanitizer::internal_strlen((const char *)special) + 1);
1867}
1868
1869POST_SYSCALL(quotactl)
1870(long res, long cmd, const void *special, long id, void *addr) {}
1871
1872PRE_SYSCALL(getdents)(long fd, void *dirent, long count) {}
1873
1874POST_SYSCALL(getdents)(long res, long fd, void *dirent, long count) {
1875 if (res >= 0) {
1876 if (dirent)
1877 POST_WRITE(dirent, res);
1878 }
1879}
1880
1881PRE_SYSCALL(getdents64)(long fd, void *dirent, long count) {}
1882
1883POST_SYSCALL(getdents64)(long res, long fd, void *dirent, long count) {
1884 if (res >= 0) {
1885 if (dirent)
1886 POST_WRITE(dirent, res);
1887 }
1888}
1889
1890PRE_SYSCALL(setsockopt)
1891(long fd, long level, long optname, void *optval, long optlen) {}
1892
1893POST_SYSCALL(setsockopt)
1894(long res, long fd, long level, long optname, void *optval, long optlen) {
1895 if (res >= 0) {
1896 if (optval)
1897 POST_WRITE(optval,
1898 __sanitizer::internal_strlen((const char *)optval) + 1);
1899 }
1900}
1901
1902PRE_SYSCALL(getsockopt)
1903(long fd, long level, long optname, void *optval, void *optlen) {}
1904
1905POST_SYSCALL(getsockopt)
1906(long res, long fd, long level, long optname, void *optval, void *optlen) {
1907 if (res >= 0) {
1908 if (optval)
1909 POST_WRITE(optval,
1910 __sanitizer::internal_strlen((const char *)optval) + 1);
1911 if (optlen)
1912 POST_WRITE(optlen, sizeof(int));
1913 }
1914}
1915
1916PRE_SYSCALL(bind)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
1917
1918POST_SYSCALL(bind)
1919(long res, long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {
1920 if (res >= 0) {
1921 if (arg1)
1922 POST_WRITE(arg1, sizeof(*arg1));
1923 }
1924}
1925
1926PRE_SYSCALL(connect)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
1927
1928POST_SYSCALL(connect)
1929(long res, long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {
1930 if (res >= 0) {
1931 if (arg1)
1932 POST_WRITE(arg1, sizeof(*arg1));
1933 }
1934}
1935
1936PRE_SYSCALL(accept)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {}
1937
1938POST_SYSCALL(accept)
1939(long res, long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {
1940 if (res >= 0) {
1941 if (arg1)
1942 POST_WRITE(arg1, sizeof(*arg1));
1943 if (arg2)
1944 POST_WRITE(arg2, sizeof(unsigned));
1945 }
1946}
1947
1948PRE_SYSCALL(accept4)
1949(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2, long arg3) {}
1950
1951POST_SYSCALL(accept4)
1952(long res, long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2, long arg3) {
1953 if (res >= 0) {
1954 if (arg1)
1955 POST_WRITE(arg1, sizeof(*arg1));
1956 if (arg2)
1957 POST_WRITE(arg2, sizeof(unsigned));
1958 }
1959}
1960
1961PRE_SYSCALL(getsockname)
1962(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {}
1963
1964POST_SYSCALL(getsockname)
1965(long res, long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {
1966 if (res >= 0) {
1967 if (arg1)
1968 POST_WRITE(arg1, sizeof(*arg1));
1969 if (arg2)
1970 POST_WRITE(arg2, sizeof(unsigned));
1971 }
1972}
1973
1974PRE_SYSCALL(getpeername)
1975(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {}
1976
1977POST_SYSCALL(getpeername)
1978(long res, long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {
1979 if (res >= 0) {
1980 if (arg1)
1981 POST_WRITE(arg1, sizeof(*arg1));
1982 if (arg2)
1983 POST_WRITE(arg2, sizeof(unsigned));
1984 }
1985}
1986
1987PRE_SYSCALL(send)(long arg0, void *arg1, long arg2, long arg3) {}
1988
1989POST_SYSCALL(send)(long res, long arg0, void *arg1, long arg2, long arg3) {
1990 if (res) {
1991 if (arg1)
1992 POST_READ(arg1, res);
1993 }
1994}
1995
1996PRE_SYSCALL(sendto)
1997(long arg0, void *arg1, long arg2, long arg3, sanitizer_kernel_sockaddr *arg4,
1998 long arg5) {}
1999
2000POST_SYSCALL(sendto)
2001(long res, long arg0, void *arg1, long arg2, long arg3,
2002 sanitizer_kernel_sockaddr *arg4, long arg5) {
2003 if (res >= 0) {
2004 if (arg1)
2005 POST_READ(arg1, res);
2006 if (arg4)
2007 POST_WRITE(arg4, sizeof(*arg4));
2008 }
2009}
2010
2011PRE_SYSCALL(sendmsg)(long fd, void *msg, long flags) {}
2012
2013POST_SYSCALL(sendmsg)(long res, long fd, void *msg, long flags) {
2014 // FIXME: POST_READ
2015}
2016
2017PRE_SYSCALL(sendmmsg)(long fd, void *msg, long vlen, long flags) {}
2018
2019POST_SYSCALL(sendmmsg)(long res, long fd, void *msg, long vlen, long flags) {
2020 // FIXME: POST_READ
2021}
2022
2023PRE_SYSCALL(recv)(long arg0, void *buf, long len, long flags) {}
2024
2025POST_SYSCALL(recv)(long res, void *buf, long len, long flags) {
2026 if (res >= 0) {
2027 if (buf)
2028 POST_WRITE(buf, res);
2029 }
2030}
2031
2032PRE_SYSCALL(recvfrom)
2033(long arg0, void *buf, long len, long flags, sanitizer_kernel_sockaddr *arg4,
2034 void *arg5) {}
2035
2036POST_SYSCALL(recvfrom)
2037(long res, long arg0, void *buf, long len, long flags,
2038 sanitizer_kernel_sockaddr *arg4, void *arg5) {
2039 if (res >= 0) {
2040 if (buf)
2041 POST_WRITE(buf, res);
2042 if (arg4)
2043 POST_WRITE(arg4, sizeof(*arg4));
2044 if (arg5)
2045 POST_WRITE(arg5, sizeof(int));
2046 }
2047}
2048
2049PRE_SYSCALL(socket)(long arg0, long arg1, long arg2) {}
2050
2051POST_SYSCALL(socket)(long res, long arg0, long arg1, long arg2) {}
2052
2053PRE_SYSCALL(socketpair)(long arg0, long arg1, long arg2, int *sv) {}
2054
2055POST_SYSCALL(socketpair)(long res, long arg0, long arg1, long arg2, int *sv) {
2056 if (res >= 0)
2057 if (sv)
2058 POST_WRITE(sv, sizeof(int) * 2);
2059}
2060
2061PRE_SYSCALL(socketcall)(long call, void *args) {}
2062
2063POST_SYSCALL(socketcall)(long res, long call, void *args) {
2064 if (res >= 0) {
2065 if (args)
2066 POST_WRITE(args, sizeof(long));
2067 }
2068}
2069
2070PRE_SYSCALL(listen)(long arg0, long arg1) {}
2071
2072POST_SYSCALL(listen)(long res, long arg0, long arg1) {}
2073
2074PRE_SYSCALL(poll)(void *ufds, long nfds, long timeout) {}
2075
2076POST_SYSCALL(poll)
2077(long res, __sanitizer_pollfd *ufds, long nfds, long timeout) {
2078 if (res >= 0) {
2079 if (ufds)
2080 POST_WRITE(ufds, nfds * sizeof(*ufds));
2081 }
2082}
2083
2084PRE_SYSCALL(select)
2085(long n, __sanitizer___kernel_fd_set *inp, __sanitizer___kernel_fd_set *outp,
2086 __sanitizer___kernel_fd_set *exp, void *tvp) {}
2087
2088POST_SYSCALL(select)
2089(long res, long n, __sanitizer___kernel_fd_set *inp,
2090 __sanitizer___kernel_fd_set *outp, __sanitizer___kernel_fd_set *exp,
2091 void *tvp) {
2092 if (res >= 0) {
2093 if (inp)
2094 POST_WRITE(inp, sizeof(*inp));
2095 if (outp)
2096 POST_WRITE(outp, sizeof(*outp));
2097 if (exp)
2098 POST_WRITE(exp, sizeof(*exp));
2099 if (tvp)
2100 POST_WRITE(tvp, timeval_sz);
2101 }
2102}
2103
2104PRE_SYSCALL(old_select)(void *arg) {}
2105
2106POST_SYSCALL(old_select)(long res, void *arg) {}
2107
2108PRE_SYSCALL(epoll_create)(long size) {}
2109
2110POST_SYSCALL(epoll_create)(long res, long size) {}
2111
2112PRE_SYSCALL(epoll_create1)(long flags) {}
2113
2114POST_SYSCALL(epoll_create1)(long res, long flags) {}
2115
2116PRE_SYSCALL(epoll_ctl)(long epfd, long op, long fd, void *event) {}
2117
2118POST_SYSCALL(epoll_ctl)(long res, long epfd, long op, long fd, void *event) {
2119 if (res >= 0) {
2120 if (event)
2121 POST_WRITE(event, struct_epoll_event_sz);
2122 }
2123}
2124
2125PRE_SYSCALL(epoll_wait)
2126(long epfd, void *events, long maxevents, long timeout) {}
2127
2128POST_SYSCALL(epoll_wait)
2129(long res, long epfd, void *events, long maxevents, long timeout) {
2130 if (res >= 0) {
2131 COMMON_SYSCALL_FD_ACQUIRE(epfd);
2132 if (events)
2133 POST_WRITE(events, res * struct_epoll_event_sz);
2134 }
2135}
2136
2137PRE_SYSCALL(epoll_pwait)
2138(long epfd, void *events, long maxevents, long timeout,
2139 const kernel_sigset_t *sigmask, long sigsetsize) {
2140 if (sigmask)
2141 PRE_READ(sigmask, sigsetsize);
2142}
2143
2144POST_SYSCALL(epoll_pwait)
2145(long res, long epfd, void *events, long maxevents, long timeout,
2146 const void *sigmask, long sigsetsize) {
2147 if (res >= 0) {
2148 COMMON_SYSCALL_FD_ACQUIRE(epfd);
2149 if (events)
2150 POST_WRITE(events, res * struct_epoll_event_sz);
2151 }
2152}
2153
2154PRE_SYSCALL(epoll_pwait2)
2155(long epfd, void *events, long maxevents,
2156 const sanitizer_kernel_timespec *timeout, const kernel_sigset_t *sigmask,
2157 long sigsetsize) {
2158 if (timeout)
2159 PRE_READ(timeout, sizeof(*timeout));
2160 if (sigmask)
2161 PRE_READ(sigmask, sigsetsize);
2162}
2163
2164POST_SYSCALL(epoll_pwait2)
2165(long res, long epfd, void *events, long maxevents,
2166 const sanitizer_kernel_timespec *timeout, const void *sigmask,
2167 long sigsetsize) {
2168 if (res >= 0) {
2169 COMMON_SYSCALL_FD_ACQUIRE(epfd);
2170 if (events)
2171 POST_WRITE(events, res * struct_epoll_event_sz);
2172 }
2173}
2174
2175PRE_SYSCALL(gethostname)(void *name, long len) {}
2176
2177POST_SYSCALL(gethostname)(long res, void *name, long len) {
2178 if (res >= 0) {
2179 if (name)
2180 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
2181 }
2182}
2183
2184PRE_SYSCALL(sethostname)(void *name, long len) {}
2185
2186POST_SYSCALL(sethostname)(long res, void *name, long len) {
2187 if (res >= 0) {
2188 if (name)
2189 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
2190 }
2191}
2192
2193PRE_SYSCALL(setdomainname)(void *name, long len) {}
2194
2195POST_SYSCALL(setdomainname)(long res, void *name, long len) {
2196 if (res >= 0) {
2197 if (name)
2198 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
2199 }
2200}
2201
2202PRE_SYSCALL(newuname)(void *name) {}
2203
2204POST_SYSCALL(newuname)(long res, void *name) {
2205 if (res >= 0) {
2206 if (name)
2207 POST_WRITE(name, struct_new_utsname_sz);
2208 }
2209}
2210
2211PRE_SYSCALL(uname)(void *arg0) {}
2212
2213POST_SYSCALL(uname)(long res, void *arg0) {
2214 if (res >= 0) {
2215 if (arg0)
2216 POST_WRITE(arg0, struct_old_utsname_sz);
2217 }
2218}
2219
2220PRE_SYSCALL(olduname)(void *arg0) {}
2221
2222POST_SYSCALL(olduname)(long res, void *arg0) {
2223 if (res >= 0) {
2224 if (arg0)
2225 POST_WRITE(arg0, struct_oldold_utsname_sz);
2226 }
2227}
2228
2229PRE_SYSCALL(getrlimit)(long resource, void *rlim) {}
2230
2231POST_SYSCALL(getrlimit)(long res, long resource, void *rlim) {
2232 if (res >= 0) {
2233 if (rlim)
2234 POST_WRITE(rlim, struct_rlimit_sz);
2235 }
2236}
2237
2238PRE_SYSCALL(old_getrlimit)(long resource, void *rlim) {}
2239
2240POST_SYSCALL(old_getrlimit)(long res, long resource, void *rlim) {
2241 if (res >= 0) {
2242 if (rlim)
2243 POST_WRITE(rlim, struct_rlimit_sz);
2244 }
2245}
2246
2247PRE_SYSCALL(setrlimit)(long resource, void *rlim) {}
2248
2249POST_SYSCALL(setrlimit)(long res, long resource, void *rlim) {
2250 if (res >= 0) {
2251 if (rlim)
2252 POST_WRITE(rlim, struct_rlimit_sz);
2253 }
2254}
2255
2256# if SANITIZER_GLIBC
2257PRE_SYSCALL(prlimit64)
2258(long pid, long resource, const void *new_rlim, void *old_rlim) {
2259 if (new_rlim)
2260 PRE_READ(new_rlim, struct_rlimit64_sz);
2261}
2262
2263POST_SYSCALL(prlimit64)
2264(long res, long pid, long resource, const void *new_rlim, void *old_rlim) {
2265 if (res >= 0) {
2266 if (old_rlim)
2267 POST_WRITE(old_rlim, struct_rlimit64_sz);
2268 }
2269}
2270# endif
2271
2272PRE_SYSCALL(getrusage)(long who, void *ru) {}
2273
2274POST_SYSCALL(getrusage)(long res, long who, void *ru) {
2275 if (res >= 0) {
2276 if (ru)
2277 POST_WRITE(ru, struct_rusage_sz);
2278 }
2279}
2280
2281PRE_SYSCALL(umask)(long mask) {}
2282
2283POST_SYSCALL(umask)(long res, long mask) {}
2284
2285PRE_SYSCALL(msgget)(long key, long msgflg) {}
2286
2287POST_SYSCALL(msgget)(long res, long key, long msgflg) {}
2288
2289PRE_SYSCALL(msgsnd)(long msqid, void *msgp, long msgsz, long msgflg) {
2290 if (msgp)
2291 PRE_READ(msgp, msgsz);
2292}
2293
2294POST_SYSCALL(msgsnd)
2295(long res, long msqid, void *msgp, long msgsz, long msgflg) {}
2296
2297PRE_SYSCALL(msgrcv)
2298(long msqid, void *msgp, long msgsz, long msgtyp, long msgflg) {}
2299
2300POST_SYSCALL(msgrcv)
2301(long res, long msqid, void *msgp, long msgsz, long msgtyp, long msgflg) {
2302 if (res >= 0) {
2303 if (msgp)
2304 POST_WRITE(msgp, res);
2305 }
2306}
2307
2308# if !SANITIZER_ANDROID
2309PRE_SYSCALL(msgctl)(long msqid, long cmd, void *buf) {}
2310
2311POST_SYSCALL(msgctl)(long res, long msqid, long cmd, void *buf) {
2312 if (res >= 0) {
2313 if (buf)
2314 POST_WRITE(buf, struct_msqid_ds_sz);
2315 }
2316}
2317# endif
2318
2319PRE_SYSCALL(semget)(long key, long nsems, long semflg) {}
2320
2321POST_SYSCALL(semget)(long res, long key, long nsems, long semflg) {}
2322
2323PRE_SYSCALL(semop)(long semid, void *sops, long nsops) {}
2324
2325POST_SYSCALL(semop)(long res, long semid, void *sops, long nsops) {}
2326
2327PRE_SYSCALL(semctl)(long semid, long semnum, long cmd, void *arg) {}
2328
2329POST_SYSCALL(semctl)(long res, long semid, long semnum, long cmd, void *arg) {}
2330
2331PRE_SYSCALL(semtimedop)
2332(long semid, void *sops, long nsops, const void *timeout) {
2333 if (timeout)
2334 PRE_READ(timeout, struct_timespec_sz);
2335}
2336
2337POST_SYSCALL(semtimedop)
2338(long res, long semid, void *sops, long nsops, const void *timeout) {}
2339
2340PRE_SYSCALL(shmat)(long shmid, void *shmaddr, long shmflg) {}
2341
2342POST_SYSCALL(shmat)(long res, long shmid, void *shmaddr, long shmflg) {
2343 if (res >= 0) {
2344 if (shmaddr)
2345 POST_WRITE(shmaddr,
2346 __sanitizer::internal_strlen((const char *)shmaddr) + 1);
2347 }
2348}
2349
2350PRE_SYSCALL(shmget)(long key, long size, long flag) {}
2351
2352POST_SYSCALL(shmget)(long res, long key, long size, long flag) {}
2353
2354PRE_SYSCALL(shmdt)(void *shmaddr) {}
2355
2356POST_SYSCALL(shmdt)(long res, void *shmaddr) {
2357 if (res >= 0) {
2358 if (shmaddr)
2359 POST_WRITE(shmaddr,
2360 __sanitizer::internal_strlen((const char *)shmaddr) + 1);
2361 }
2362}
2363
2364PRE_SYSCALL(ipc)
2365(long call, long first, long second, long third, void *ptr, long fifth) {}
2366
2367POST_SYSCALL(ipc)
2368(long res, long call, long first, long second, long third, void *ptr,
2369 long fifth) {}
2370
2371# if !SANITIZER_ANDROID
2372PRE_SYSCALL(shmctl)(long shmid, long cmd, void *buf) {}
2373
2374POST_SYSCALL(shmctl)(long res, long shmid, long cmd, void *buf) {
2375 if (res >= 0) {
2376 if (buf)
2377 POST_WRITE(buf, sizeof(__sanitizer_shmid_ds));
2378 }
2379}
2380
2381PRE_SYSCALL(mq_open)(const void *name, long oflag, long mode, void *attr) {
2382 if (name)
2383 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
2384}
2385
2386POST_SYSCALL(mq_open)
2387(long res, const void *name, long oflag, long mode, void *attr) {
2388 if (res >= 0) {
2389 if (attr)
2390 POST_WRITE(attr, struct_mq_attr_sz);
2391 }
2392}
2393
2394PRE_SYSCALL(mq_unlink)(const void *name) {
2395 if (name)
2396 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
2397}
2398
2399POST_SYSCALL(mq_unlink)(long res, const void *name) {}
2400
2401PRE_SYSCALL(mq_timedsend)
2402(long mqdes, const void *msg_ptr, long msg_len, long msg_prio,
2403 const void *abs_timeout) {
2404 if (msg_ptr)
2405 PRE_READ(msg_ptr, msg_len);
2406 if (abs_timeout)
2407 PRE_READ(abs_timeout, struct_timespec_sz);
2408}
2409
2410POST_SYSCALL(mq_timedsend)
2411(long res, long mqdes, const void *msg_ptr, long msg_len, long msg_prio,
2412 const void *abs_timeout) {}
2413
2414PRE_SYSCALL(mq_timedreceive)
2415(long mqdes, void *msg_ptr, long msg_len, void *msg_prio,
2416 const void *abs_timeout) {
2417 if (abs_timeout)
2418 PRE_READ(abs_timeout, struct_timespec_sz);
2419}
2420
2421POST_SYSCALL(mq_timedreceive)
2422(long res, long mqdes, void *msg_ptr, long msg_len, int *msg_prio,
2423 const void *abs_timeout) {
2424 if (res >= 0) {
2425 if (msg_ptr)
2426 POST_WRITE(msg_ptr, res);
2427 if (msg_prio)
2428 POST_WRITE(msg_prio, sizeof(*msg_prio));
2429 }
2430}
2431
2432PRE_SYSCALL(mq_notify)(long mqdes, const void *notification) {
2433 if (notification)
2434 PRE_READ(notification, struct_sigevent_sz);
2435}
2436
2437POST_SYSCALL(mq_notify)(long res, long mqdes, const void *notification) {}
2438
2439PRE_SYSCALL(mq_getsetattr)(long mqdes, const void *mqstat, void *omqstat) {
2440 if (mqstat)
2441 PRE_READ(mqstat, struct_mq_attr_sz);
2442}
2443
2444POST_SYSCALL(mq_getsetattr)
2445(long res, long mqdes, const void *mqstat, void *omqstat) {
2446 if (res >= 0) {
2447 if (omqstat)
2448 POST_WRITE(omqstat, struct_mq_attr_sz);
2449 }
2450}
2451# endif // SANITIZER_ANDROID
2452
2453PRE_SYSCALL(pciconfig_iobase)(long which, long bus, long devfn) {}
2454
2455POST_SYSCALL(pciconfig_iobase)(long res, long which, long bus, long devfn) {}
2456
2457PRE_SYSCALL(pciconfig_read)
2458(long bus, long dfn, long off, long len, void *buf) {}
2459
2460POST_SYSCALL(pciconfig_read)
2461(long res, long bus, long dfn, long off, long len, void *buf) {}
2462
2463PRE_SYSCALL(pciconfig_write)
2464(long bus, long dfn, long off, long len, void *buf) {}
2465
2466POST_SYSCALL(pciconfig_write)
2467(long res, long bus, long dfn, long off, long len, void *buf) {}
2468
2469PRE_SYSCALL(swapon)(const void *specialfile, long swap_flags) {
2470 if (specialfile)
2471 PRE_READ(specialfile,
2472 __sanitizer::internal_strlen((const char *)specialfile) + 1);
2473}
2474
2475POST_SYSCALL(swapon)(long res, const void *specialfile, long swap_flags) {}
2476
2477PRE_SYSCALL(swapoff)(const void *specialfile) {
2478 if (specialfile)
2479 PRE_READ(specialfile,
2480 __sanitizer::internal_strlen((const char *)specialfile) + 1);
2481}
2482
2483POST_SYSCALL(swapoff)(long res, const void *specialfile) {}
2484
2485PRE_SYSCALL(sysctl)(__sanitizer___sysctl_args *args) {
2486 if (args) {
2487 if (args->name)
2488 PRE_READ(args->name, args->nlen * sizeof(*args->name));
2489 if (args->newval)
2490 PRE_READ(args->name, args->newlen);
2491 }
2492}
2493
2494POST_SYSCALL(sysctl)(long res, __sanitizer___sysctl_args *args) {
2495 if (res >= 0) {
2496 if (args && args->oldval && args->oldlenp) {
2497 POST_WRITE(args->oldlenp, sizeof(*args->oldlenp));
2498 POST_WRITE(args->oldval, *args->oldlenp);
2499 }
2500 }
2501}
2502
2503PRE_SYSCALL(sysinfo)(void *info) {}
2504
2505POST_SYSCALL(sysinfo)(long res, void *info) {
2506 if (res >= 0) {
2507 if (info)
2508 POST_WRITE(info, struct_sysinfo_sz);
2509 }
2510}
2511
2512PRE_SYSCALL(sysfs)(long option, long arg1, long arg2) {}
2513
2514POST_SYSCALL(sysfs)(long res, long option, long arg1, long arg2) {}
2515
2516PRE_SYSCALL(syslog)(long type, void *buf, long len) {}
2517
2518POST_SYSCALL(syslog)(long res, long type, void *buf, long len) {
2519 if (res >= 0) {
2520 if (buf)
2521 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
2522 }
2523}
2524
2525PRE_SYSCALL(uselib)(const void *library) {
2526 if (library)
2527 PRE_READ(library, __sanitizer::internal_strlen((const char *)library) + 1);
2528}
2529
2530POST_SYSCALL(uselib)(long res, const void *library) {}
2531
2532PRE_SYSCALL(ni_syscall)() {}
2533
2534POST_SYSCALL(ni_syscall)(long res) {}
2535
2536PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
2537# if !SANITIZER_ANDROID && \
2538 (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
2539 defined(__powerpc64__) || defined(__aarch64__) || defined(__s390__) || \
2540 defined(__loongarch__) || SANITIZER_RISCV64 || defined(__sparc__))
2541 long data_arg = ptrace_data_arg(request, addr, data);
2542 if (data_arg) {
2543 if (request == ptrace_setregs) {
2544 PRE_READ((void *)data_arg, struct_user_regs_struct_sz);
2545 } else if (request == ptrace_setfpregs) {
2546 PRE_READ((void *)data_arg, struct_user_fpregs_struct_sz);
2547 } else if (request == ptrace_setfpxregs) {
2548 PRE_READ((void *)data_arg, struct_user_fpxregs_struct_sz);
2549 } else if (request == ptrace_setsiginfo) {
2550 PRE_READ((void *)data_arg, siginfo_t_sz);
2551 } else if (request == ptrace_setregset) {
2552 __sanitizer_iovec *iov = (__sanitizer_iovec *)data_arg;
2553 PRE_READ(iov->iov_base, iov->iov_len);
2554 }
2555 }
2556# endif
2557}
2558
2559POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) {
2560# if !SANITIZER_ANDROID && \
2561 (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
2562 defined(__powerpc64__) || defined(__aarch64__) || defined(__s390__) || \
2563 defined(__loongarch__) || SANITIZER_RISCV64 || defined(__sparc__))
2564 long data_arg = ptrace_data_arg(request, addr, data);
2565 if (res >= 0 && data_arg) {
2566 // Note that this is different from the interceptor in
2567 // sanitizer_common_interceptors.inc.
2568 // PEEK* requests return resulting values through data pointer.
2569 if (request == ptrace_getregs) {
2570 POST_WRITE((void *)data_arg, struct_user_regs_struct_sz);
2571 } else if (request == ptrace_getfpregs) {
2572 POST_WRITE((void *)data_arg, struct_user_fpregs_struct_sz);
2573 } else if (request == ptrace_getfpxregs) {
2574 POST_WRITE((void *)data_arg, struct_user_fpxregs_struct_sz);
2575 } else if (request == ptrace_getsiginfo) {
2576 POST_WRITE((void *)data_arg, siginfo_t_sz);
2577 } else if (request == ptrace_getregset) {
2578 __sanitizer_iovec *iov = (__sanitizer_iovec *)data_arg;
2579 POST_WRITE(iov->iov_base, iov->iov_len);
2580 } else if (request == ptrace_peekdata || request == ptrace_peektext ||
2581 request == ptrace_peekuser) {
2582 POST_WRITE((void *)data_arg, sizeof(void *));
2583 }
2584 }
2585# endif
2586}
2587
2588PRE_SYSCALL(add_key)
2589(const void *_type, const void *_description, const void *_payload, long plen,
2590 long destringid) {
2591 if (_type)
2592 PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1);
2593 if (_description)
2594 PRE_READ(_description,
2595 __sanitizer::internal_strlen((const char *)_description) + 1);
2596}
2597
2598POST_SYSCALL(add_key)
2599(long res, const void *_type, const void *_description, const void *_payload,
2600 long plen, long destringid) {}
2601
2602PRE_SYSCALL(request_key)
2603(const void *_type, const void *_description, const void *_callout_info,
2604 long destringid) {
2605 if (_type)
2606 PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1);
2607 if (_description)
2608 PRE_READ(_description,
2609 __sanitizer::internal_strlen((const char *)_description) + 1);
2610 if (_callout_info)
2611 PRE_READ(_callout_info,
2612 __sanitizer::internal_strlen((const char *)_callout_info) + 1);
2613}
2614
2615POST_SYSCALL(request_key)
2616(long res, const void *_type, const void *_description,
2617 const void *_callout_info, long destringid) {}
2618
2619PRE_SYSCALL(keyctl)(long cmd, long arg2, long arg3, long arg4, long arg5) {}
2620
2621POST_SYSCALL(keyctl)
2622(long res, long cmd, long arg2, long arg3, long arg4, long arg5) {}
2623
2624PRE_SYSCALL(ioprio_set)(long which, long who, long ioprio) {}
2625
2626POST_SYSCALL(ioprio_set)(long res, long which, long who, long ioprio) {}
2627
2628PRE_SYSCALL(ioprio_get)(long which, long who) {}
2629
2630POST_SYSCALL(ioprio_get)(long res, long which, long who) {}
2631
2632PRE_SYSCALL(set_mempolicy)(long mode, void *nmask, long maxnode) {}
2633
2634POST_SYSCALL(set_mempolicy)(long res, long mode, void *nmask, long maxnode) {
2635 if (res >= 0) {
2636 if (nmask)
2637 POST_WRITE(nmask, sizeof(long));
2638 }
2639}
2640
2641PRE_SYSCALL(migrate_pages)
2642(long pid, long maxnode, const void *from, const void *to) {
2643 if (from)
2644 PRE_READ(from, sizeof(long));
2645 if (to)
2646 PRE_READ(to, sizeof(long));
2647}
2648
2649POST_SYSCALL(migrate_pages)
2650(long res, long pid, long maxnode, const void *from, const void *to) {}
2651
2652PRE_SYSCALL(move_pages)
2653(long pid, long nr_pages, const void **pages, const int *nodes, int *status,
2654 long flags) {
2655 if (pages)
2656 PRE_READ(pages, nr_pages * sizeof(*pages));
2657 if (nodes)
2658 PRE_READ(nodes, nr_pages * sizeof(*nodes));
2659}
2660
2661POST_SYSCALL(move_pages)
2662(long res, long pid, long nr_pages, const void **pages, const int *nodes,
2663 int *status, long flags) {
2664 if (res >= 0) {
2665 if (status)
2666 POST_WRITE(status, nr_pages * sizeof(*status));
2667 }
2668}
2669
2670PRE_SYSCALL(mbind)
2671(long start, long len, long mode, void *nmask, long maxnode, long flags) {}
2672
2673POST_SYSCALL(mbind)
2674(long res, long start, long len, long mode, void *nmask, long maxnode,
2675 long flags) {
2676 if (res >= 0) {
2677 if (nmask)
2678 POST_WRITE(nmask, sizeof(long));
2679 }
2680}
2681
2682PRE_SYSCALL(get_mempolicy)
2683(void *policy, void *nmask, long maxnode, long addr, long flags) {}
2684
2685POST_SYSCALL(get_mempolicy)
2686(long res, void *policy, void *nmask, long maxnode, long addr, long flags) {
2687 if (res >= 0) {
2688 if (policy)
2689 POST_WRITE(policy, sizeof(int));
2690 if (nmask)
2691 POST_WRITE(nmask, sizeof(long));
2692 }
2693}
2694
2695PRE_SYSCALL(inotify_init)() {}
2696
2697POST_SYSCALL(inotify_init)(long res) {}
2698
2699PRE_SYSCALL(inotify_init1)(long flags) {}
2700
2701POST_SYSCALL(inotify_init1)(long res, long flags) {}
2702
2703PRE_SYSCALL(inotify_add_watch)(long fd, const void *path, long mask) {
2704 if (path)
2705 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
2706}
2707
2708POST_SYSCALL(inotify_add_watch)
2709(long res, long fd, const void *path, long mask) {}
2710
2711PRE_SYSCALL(inotify_rm_watch)(long fd, long wd) {}
2712
2713POST_SYSCALL(inotify_rm_watch)(long res, long fd, long wd) {}
2714
2715PRE_SYSCALL(spu_run)(long fd, void *unpc, void *ustatus) {}
2716
2717POST_SYSCALL(spu_run)(long res, long fd, unsigned *unpc, unsigned *ustatus) {
2718 if (res >= 0) {
2719 if (unpc)
2720 POST_WRITE(unpc, sizeof(*unpc));
2721 if (ustatus)
2722 POST_WRITE(ustatus, sizeof(*ustatus));
2723 }
2724}
2725
2726PRE_SYSCALL(spu_create)(const void *name, long flags, long mode, long fd) {
2727 if (name)
2728 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
2729}
2730
2731POST_SYSCALL(spu_create)
2732(long res, const void *name, long flags, long mode, long fd) {}
2733
2734PRE_SYSCALL(mknodat)(long dfd, const void *filename, long mode, long dev) {
2735 if (filename)
2736 PRE_READ(filename,
2737 __sanitizer::internal_strlen((const char *)filename) + 1);
2738}
2739
2740POST_SYSCALL(mknodat)
2741(long res, long dfd, const void *filename, long mode, long dev) {}
2742
2743PRE_SYSCALL(mkdirat)(long dfd, const void *pathname, long mode) {
2744 if (pathname)
2745 PRE_READ(pathname,
2746 __sanitizer::internal_strlen((const char *)pathname) + 1);
2747}
2748
2749POST_SYSCALL(mkdirat)(long res, long dfd, const void *pathname, long mode) {}
2750
2751PRE_SYSCALL(unlinkat)(long dfd, const void *pathname, long flag) {
2752 if (pathname)
2753 PRE_READ(pathname,
2754 __sanitizer::internal_strlen((const char *)pathname) + 1);
2755}
2756
2757POST_SYSCALL(unlinkat)(long res, long dfd, const void *pathname, long flag) {}
2758
2759PRE_SYSCALL(symlinkat)(const void *oldname, long newdfd, const void *newname) {
2760 if (oldname)
2761 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
2762 if (newname)
2763 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
2764}
2765
2766POST_SYSCALL(symlinkat)
2767(long res, const void *oldname, long newdfd, const void *newname) {}
2768
2769PRE_SYSCALL(linkat)
2770(long olddfd, const void *oldname, long newdfd, const void *newname,
2771 long flags) {
2772 if (oldname)
2773 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
2774 if (newname)
2775 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
2776}
2777
2778POST_SYSCALL(linkat)
2779(long res, long olddfd, const void *oldname, long newdfd, const void *newname,
2780 long flags) {}
2781
2782PRE_SYSCALL(renameat)
2783(long olddfd, const void *oldname, long newdfd, const void *newname) {
2784 if (oldname)
2785 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
2786 if (newname)
2787 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
2788}
2789
2790POST_SYSCALL(renameat)
2791(long res, long olddfd, const void *oldname, long newdfd, const void *newname) {
2792}
2793
2794PRE_SYSCALL(futimesat)(long dfd, const void *filename, void *utimes) {
2795 if (filename)
2796 PRE_READ(filename,
2797 __sanitizer::internal_strlen((const char *)filename) + 1);
2798}
2799
2800POST_SYSCALL(futimesat)
2801(long res, long dfd, const void *filename, void *utimes) {
2802 if (res >= 0) {
2803 if (utimes)
2804 POST_WRITE(utimes, timeval_sz);
2805 }
2806}
2807
2808PRE_SYSCALL(faccessat)(long dfd, const void *filename, long mode) {
2809 if (filename)
2810 PRE_READ(filename,
2811 __sanitizer::internal_strlen((const char *)filename) + 1);
2812}
2813
2814POST_SYSCALL(faccessat)(long res, long dfd, const void *filename, long mode) {}
2815
2816PRE_SYSCALL(fchmodat)(long dfd, const void *filename, long mode) {
2817 if (filename)
2818 PRE_READ(filename,
2819 __sanitizer::internal_strlen((const char *)filename) + 1);
2820}
2821
2822POST_SYSCALL(fchmodat)(long res, long dfd, const void *filename, long mode) {}
2823
2824PRE_SYSCALL(fchownat)
2825(long dfd, const void *filename, long user, long group, long flag) {
2826 if (filename)
2827 PRE_READ(filename,
2828 __sanitizer::internal_strlen((const char *)filename) + 1);
2829}
2830
2831POST_SYSCALL(fchownat)
2832(long res, long dfd, const void *filename, long user, long group, long flag) {}
2833
2834PRE_SYSCALL(fchmodat2)(long dfd, const void *filename, long mode, long flag) {
2835 if (filename)
2836 PRE_READ(filename,
2837 __sanitizer::internal_strlen((const char *)filename) + 1);
2838}
2839
2840POST_SYSCALL(fchmodat2)
2841(long res, long dfd, const void *filename, long mode, long flag) {}
2842
2843PRE_SYSCALL(openat)(long dfd, const void *filename, long flags, long mode) {
2844 if (filename)
2845 PRE_READ(filename,
2846 __sanitizer::internal_strlen((const char *)filename) + 1);
2847}
2848
2849POST_SYSCALL(openat)
2850(long res, long dfd, const void *filename, long flags, long mode) {}
2851
2852PRE_SYSCALL(openat2)(long dfd, const void* filename,
2853 const sanitizer_kernel_open_how* how, uptr howlen) {
2854 if (filename)
2855 PRE_READ(filename, __sanitizer::internal_strlen((const char*)filename) + 1);
2856
2857 if (how)
2858 PRE_READ(how, howlen);
2859}
2860
2861POST_SYSCALL(openat2)(long res, long dfd, const void* filename,
2862 const sanitizer_kernel_open_how* how, uptr howlen) {}
2863
2864PRE_SYSCALL(newfstatat)
2865(long dfd, const void *filename, void *statbuf, long flag) {
2866 if (filename)
2867 PRE_READ(filename,
2868 __sanitizer::internal_strlen((const char *)filename) + 1);
2869}
2870
2871POST_SYSCALL(newfstatat)
2872(long res, long dfd, const void *filename, void *statbuf, long flag) {
2873 if (res >= 0) {
2874 if (statbuf)
2875 POST_WRITE(statbuf, struct_kernel_stat_sz);
2876 }
2877}
2878
2879PRE_SYSCALL(fstatat64)
2880(long dfd, const void *filename, void *statbuf, long flag) {
2881 if (filename)
2882 PRE_READ(filename,
2883 __sanitizer::internal_strlen((const char *)filename) + 1);
2884}
2885
2886POST_SYSCALL(fstatat64)
2887(long res, long dfd, const void *filename, void *statbuf, long flag) {
2888 if (res >= 0) {
2889 if (statbuf)
2890 POST_WRITE(statbuf, struct_kernel_stat64_sz);
2891 }
2892}
2893
2894PRE_SYSCALL(readlinkat)(long dfd, const void *path, void *buf, long bufsiz) {
2895 if (path)
2896 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
2897}
2898
2899POST_SYSCALL(readlinkat)
2900(long res, long dfd, const void *path, void *buf, long bufsiz) {
2901 if (res >= 0) {
2902 if (buf)
2903 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
2904 }
2905}
2906
2907PRE_SYSCALL(utimensat)
2908(long dfd, const void *filename, void *utimes, long flags) {
2909 if (filename)
2910 PRE_READ(filename,
2911 __sanitizer::internal_strlen((const char *)filename) + 1);
2912}
2913
2914POST_SYSCALL(utimensat)
2915(long res, long dfd, const void *filename, void *utimes, long flags) {
2916 if (res >= 0) {
2917 if (utimes)
2918 POST_WRITE(utimes, struct_timespec_sz);
2919 }
2920}
2921
2922PRE_SYSCALL(unshare)(long unshare_flags) {}
2923
2924POST_SYSCALL(unshare)(long res, long unshare_flags) {}
2925
2926PRE_SYSCALL(splice)
2927(long fd_in, void *off_in, long fd_out, void *off_out, long len, long flags) {}
2928
2929POST_SYSCALL(splice)
2930(long res, long fd_in, void *off_in, long fd_out, void *off_out, long len,
2931 long flags) {
2932 if (res >= 0) {
2933 if (off_in)
2934 POST_WRITE(off_in, sizeof(long long));
2935 if (off_out)
2936 POST_WRITE(off_out, sizeof(long long));
2937 }
2938}
2939
2940PRE_SYSCALL(vmsplice)
2941(long fd, const __sanitizer_iovec *iov, long nr_segs, long flags) {}
2942
2943POST_SYSCALL(vmsplice)
2944(long res, long fd, const __sanitizer_iovec *iov, long nr_segs, long flags) {
2945 if (res >= 0) {
2946 if (iov)
2947 kernel_read_iovec(iovec: iov, iovlen: nr_segs, maxlen: res);
2948 }
2949}
2950
2951PRE_SYSCALL(tee)(long fdin, long fdout, long len, long flags) {}
2952
2953POST_SYSCALL(tee)(long res, long fdin, long fdout, long len, long flags) {}
2954
2955PRE_SYSCALL(get_robust_list)(long pid, void *head_ptr, void *len_ptr) {}
2956
2957POST_SYSCALL(get_robust_list)
2958(long res, long pid, void *head_ptr, void *len_ptr) {}
2959
2960PRE_SYSCALL(set_robust_list)(void *head, long len) {}
2961
2962POST_SYSCALL(set_robust_list)(long res, void *head, long len) {}
2963
2964PRE_SYSCALL(getcpu)(void *cpu, void *node, void *cache) {}
2965
2966POST_SYSCALL(getcpu)(long res, void *cpu, void *node, void *cache) {
2967 if (res >= 0) {
2968 if (cpu)
2969 POST_WRITE(cpu, sizeof(unsigned));
2970 if (node)
2971 POST_WRITE(node, sizeof(unsigned));
2972 // The third argument to this system call is nowadays unused.
2973 }
2974}
2975
2976PRE_SYSCALL(signalfd)(long ufd, void *user_mask, long sizemask) {}
2977
2978POST_SYSCALL(signalfd)
2979(long res, long ufd, kernel_sigset_t *user_mask, long sizemask) {
2980 if (res >= 0) {
2981 if (user_mask)
2982 POST_WRITE(user_mask, sizemask);
2983 }
2984}
2985
2986PRE_SYSCALL(signalfd4)(long ufd, void *user_mask, long sizemask, long flags) {}
2987
2988POST_SYSCALL(signalfd4)
2989(long res, long ufd, kernel_sigset_t *user_mask, long sizemask, long flags) {
2990 if (res >= 0) {
2991 if (user_mask)
2992 POST_WRITE(user_mask, sizemask);
2993 }
2994}
2995
2996PRE_SYSCALL(timerfd_create)(long clockid, long flags) {}
2997
2998POST_SYSCALL(timerfd_create)(long res, long clockid, long flags) {}
2999
3000PRE_SYSCALL(timerfd_settime)
3001(long ufd, long flags, const void *utmr, void *otmr) {
3002 if (utmr)
3003 PRE_READ(utmr, struct_itimerspec_sz);
3004}
3005
3006POST_SYSCALL(timerfd_settime)
3007(long res, long ufd, long flags, const void *utmr, void *otmr) {
3008 if (res >= 0) {
3009 if (otmr)
3010 POST_WRITE(otmr, struct_itimerspec_sz);
3011 }
3012}
3013
3014PRE_SYSCALL(timerfd_gettime)(long ufd, void *otmr) {}
3015
3016POST_SYSCALL(timerfd_gettime)(long res, long ufd, void *otmr) {
3017 if (res >= 0) {
3018 if (otmr)
3019 POST_WRITE(otmr, struct_itimerspec_sz);
3020 }
3021}
3022
3023PRE_SYSCALL(eventfd)(long count) {}
3024
3025POST_SYSCALL(eventfd)(long res, long count) {}
3026
3027PRE_SYSCALL(eventfd2)(long count, long flags) {}
3028
3029POST_SYSCALL(eventfd2)(long res, long count, long flags) {}
3030
3031PRE_SYSCALL(old_readdir)(long arg0, void *arg1, long arg2) {}
3032
3033POST_SYSCALL(old_readdir)(long res, long arg0, void *arg1, long arg2) {
3034 // Missing definition of 'struct old_linux_dirent'.
3035}
3036
3037PRE_SYSCALL(pselect6)
3038(long arg0, __sanitizer___kernel_fd_set *arg1,
3039 __sanitizer___kernel_fd_set *arg2, __sanitizer___kernel_fd_set *arg3,
3040 void *arg4, void *arg5) {}
3041
3042POST_SYSCALL(pselect6)
3043(long res, long arg0, __sanitizer___kernel_fd_set *arg1,
3044 __sanitizer___kernel_fd_set *arg2, __sanitizer___kernel_fd_set *arg3,
3045 void *arg4, void *arg5) {
3046 if (res >= 0) {
3047 if (arg1)
3048 POST_WRITE(arg1, sizeof(*arg1));
3049 if (arg2)
3050 POST_WRITE(arg2, sizeof(*arg2));
3051 if (arg3)
3052 POST_WRITE(arg3, sizeof(*arg3));
3053 if (arg4)
3054 POST_WRITE(arg4, struct_timespec_sz);
3055 }
3056}
3057
3058PRE_SYSCALL(ppoll)
3059(__sanitizer_pollfd *arg0, long arg1, void *arg2, const kernel_sigset_t *arg3,
3060 long arg4) {
3061 if (arg3)
3062 PRE_READ(arg3, arg4);
3063}
3064
3065POST_SYSCALL(ppoll)
3066(long res, __sanitizer_pollfd *arg0, long arg1, void *arg2, const void *arg3,
3067 long arg4) {
3068 if (res >= 0) {
3069 if (arg0)
3070 POST_WRITE(arg0, sizeof(*arg0));
3071 if (arg2)
3072 POST_WRITE(arg2, struct_timespec_sz);
3073 }
3074}
3075
3076PRE_SYSCALL(syncfs)(long fd) {}
3077
3078POST_SYSCALL(syncfs)(long res, long fd) {}
3079
3080PRE_SYSCALL(perf_event_open)
3081(__sanitizer_perf_event_attr *attr_uptr, long pid, long cpu, long group_fd,
3082 long flags) {
3083 if (attr_uptr)
3084 PRE_READ(attr_uptr, attr_uptr->size);
3085}
3086
3087POST_SYSCALL(perf_event_open)
3088(long res, __sanitizer_perf_event_attr *attr_uptr, long pid, long cpu,
3089 long group_fd, long flags) {}
3090
3091PRE_SYSCALL(mmap_pgoff)
3092(long addr, long len, long prot, long flags, long fd, long pgoff) {}
3093
3094POST_SYSCALL(mmap_pgoff)
3095(long res, long addr, long len, long prot, long flags, long fd, long pgoff) {}
3096
3097PRE_SYSCALL(old_mmap)(void *arg) {}
3098
3099POST_SYSCALL(old_mmap)(long res, void *arg) {}
3100
3101PRE_SYSCALL(name_to_handle_at)
3102(long dfd, const void *name, void *handle, void *mnt_id, long flag) {}
3103
3104POST_SYSCALL(name_to_handle_at)
3105(long res, long dfd, const void *name, void *handle, void *mnt_id, long flag) {}
3106
3107PRE_SYSCALL(open_by_handle_at)(long mountdirfd, void *handle, long flags) {}
3108
3109POST_SYSCALL(open_by_handle_at)
3110(long res, long mountdirfd, void *handle, long flags) {}
3111
3112PRE_SYSCALL(setns)(long fd, long nstype) {}
3113
3114POST_SYSCALL(setns)(long res, long fd, long nstype) {}
3115
3116PRE_SYSCALL(process_vm_readv)
3117(long pid, const __sanitizer_iovec *lvec, long liovcnt, const void *rvec,
3118 long riovcnt, long flags) {}
3119
3120POST_SYSCALL(process_vm_readv)
3121(long res, long pid, const __sanitizer_iovec *lvec, long liovcnt,
3122 const void *rvec, long riovcnt, long flags) {
3123 if (res >= 0) {
3124 if (lvec)
3125 kernel_write_iovec(iovec: lvec, iovlen: liovcnt, maxlen: res);
3126 }
3127}
3128
3129PRE_SYSCALL(process_vm_writev)
3130(long pid, const __sanitizer_iovec *lvec, long liovcnt, const void *rvec,
3131 long riovcnt, long flags) {}
3132
3133POST_SYSCALL(process_vm_writev)
3134(long res, long pid, const __sanitizer_iovec *lvec, long liovcnt,
3135 const void *rvec, long riovcnt, long flags) {
3136 if (res >= 0) {
3137 if (lvec)
3138 kernel_read_iovec(iovec: lvec, iovlen: liovcnt, maxlen: res);
3139 }
3140}
3141
3142PRE_SYSCALL(fork)() { COMMON_SYSCALL_PRE_FORK(); }
3143
3144POST_SYSCALL(fork)(long res) { COMMON_SYSCALL_POST_FORK(res); }
3145
3146PRE_SYSCALL(vfork)() { COMMON_SYSCALL_PRE_FORK(); }
3147
3148POST_SYSCALL(vfork)(long res) { COMMON_SYSCALL_POST_FORK(res); }
3149
3150PRE_SYSCALL(sigaction)
3151(long signum, const __sanitizer_kernel_sigaction_t *act,
3152 __sanitizer_kernel_sigaction_t *oldact) {
3153 if (act) {
3154 PRE_READ(&act->sigaction, sizeof(act->sigaction));
3155 PRE_READ(&act->sa_flags, sizeof(act->sa_flags));
3156 PRE_READ(&act->sa_mask, sizeof(act->sa_mask));
3157 }
3158}
3159
3160POST_SYSCALL(sigaction)
3161(long res, long signum, const __sanitizer_kernel_sigaction_t *act,
3162 __sanitizer_kernel_sigaction_t *oldact) {
3163 if (res >= 0 && oldact)
3164 POST_WRITE(oldact, sizeof(*oldact));
3165}
3166
3167PRE_SYSCALL(rt_sigaction)
3168(long signum, const __sanitizer_kernel_sigaction_t *act,
3169 __sanitizer_kernel_sigaction_t *oldact, SIZE_T sz) {
3170 if (act) {
3171 PRE_READ(&act->sigaction, sizeof(act->sigaction));
3172 PRE_READ(&act->sa_flags, sizeof(act->sa_flags));
3173 PRE_READ(&act->sa_mask, sz);
3174 }
3175}
3176
3177POST_SYSCALL(rt_sigaction)
3178(long res, long signum, const __sanitizer_kernel_sigaction_t *act,
3179 __sanitizer_kernel_sigaction_t *oldact, SIZE_T sz) {
3180 if (res >= 0 && oldact) {
3181 SIZE_T oldact_sz = ((char *)&oldact->sa_mask) - ((char *)oldact) + sz;
3182 POST_WRITE(oldact, oldact_sz);
3183 }
3184}
3185
3186PRE_SYSCALL(getrandom)(void *buf, uptr count, long flags) {
3187 if (buf) {
3188 PRE_WRITE(buf, count);
3189 }
3190}
3191
3192POST_SYSCALL(getrandom)(long res, void *buf, uptr count, long flags) {
3193 if (res > 0 && buf) {
3194 POST_WRITE(buf, res);
3195 }
3196}
3197
3198PRE_SYSCALL(sigaltstack)(const void *ss, void *oss) {
3199 if (ss != nullptr) {
3200 PRE_READ(ss, struct_stack_t_sz);
3201 }
3202 if (oss != nullptr) {
3203 PRE_WRITE(oss, struct_stack_t_sz);
3204 }
3205}
3206
3207POST_SYSCALL(sigaltstack)(long res, void *ss, void *oss) {
3208 if (res == 0) {
3209 if (oss != nullptr) {
3210 POST_WRITE(oss, struct_stack_t_sz);
3211 }
3212 }
3213}
3214
3215PRE_SYSCALL(futex)
3216(void *uaddr, long futex_op, long val, void *timeout, void *uaddr2, long val3) {
3217 COMMON_SYSCALL_BLOCKING_START();
3218}
3219
3220POST_SYSCALL(futex)
3221(long res, void *uaddr, long futex_op, long val, void *timeout, void *uaddr2,
3222 long val3) {
3223 COMMON_SYSCALL_BLOCKING_END();
3224}
3225
3226PRE_SYSCALL(copy_file_range)
3227(int fdin, __sanitizer___kernel_off_t *offin, int fdout,
3228 __sanitizer___kernel_off_t *offout, SIZE_T size, unsigned int flags) {
3229 if (offin != nullptr) {
3230 PRE_READ(offin, sizeof(*offin));
3231 }
3232 if (offout != nullptr) {
3233 PRE_READ(offout, sizeof(*offout));
3234 }
3235}
3236
3237POST_SYSCALL(copy_file_range)
3238(SSIZE_T, int fdin, __sanitizer___kernel_off_t *offin, int fdout,
3239 __sanitizer___kernel_off_t *offout, SIZE_T size, unsigned int flags) {
3240 if (offin != nullptr) {
3241 POST_WRITE(offin, sizeof(*offin));
3242 }
3243 if (offout != nullptr) {
3244 POST_WRITE(offout, sizeof(*offout));
3245 }
3246}
3247
3248} // extern "C"
3249
3250# undef PRE_SYSCALL
3251# undef PRE_READ
3252# undef PRE_WRITE
3253# undef POST_SYSCALL
3254# undef POST_READ
3255# undef POST_WRITE
3256
3257#endif // SANITIZER_LINUX
3258