sanitizer_common_syscalls.inc revision d7041c6617b10302be6849b55a88dc928fd7f6b8 
1//===-- sanitizer_common_syscalls.inc ---------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Common syscalls handlers for tools like AddressSanitizer,
11// ThreadSanitizer, MemorySanitizer, etc.
12//
13// This file should be included into the tool's interceptor file,
14// which has to define it's own macros:
15//   COMMON_SYSCALL_PRE_READ_RANGE
16//          Called in prehook for regions that will be read by the kernel and
17//          must be initialized.
18//   COMMON_SYSCALL_PRE_WRITE_RANGE
19//          Called in prehook for regions that will be written to by the kernel
20//          and must be addressable. The actual write range may be smaller than
21//          reported in the prehook. See POST_WRITE_RANGE.
22//   COMMON_SYSCALL_POST_READ_RANGE
23//          Called in posthook for regions that were read by the kernel. Does
24//          not make much sense.
25//   COMMON_SYSCALL_POST_WRITE_RANGE
26//          Called in posthook for regions that were written to by the kernel
27//          and are now initialized.
28//   COMMON_SYSCALL_FD_CLOSE(fd)
29//          Called before closing file descriptor fd.
30//   COMMON_SYSCALL_PRE_FORK()
31//          Called before fork syscall.
32//   COMMON_SYSCALL_POST_FORK(long res)
33//          Called after fork syscall.
34//===----------------------------------------------------------------------===//
35
36#include "sanitizer_platform.h"
37#if SANITIZER_LINUX
38
39#include "sanitizer_libc.h"
40
41#define PRE_SYSCALL(name)                                                      \
42  SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_pre_impl_##name
43#define PRE_READ(p, s) COMMON_SYSCALL_PRE_READ_RANGE(p, s)
44#define PRE_WRITE(p, s) COMMON_SYSCALL_PRE_WRITE_RANGE(p, s)
45
46#define POST_SYSCALL(name)                                                     \
47  SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_post_impl_##name
48#define POST_READ(p, s) COMMON_SYSCALL_POST_READ_RANGE(p, s)
49#define POST_WRITE(p, s) COMMON_SYSCALL_POST_WRITE_RANGE(p, s)
50
51#ifndef COMMON_SYSCALL_FD_CLOSE
52# define COMMON_SYSCALL_FD_CLOSE(fd)
53#endif
54
55#ifndef COMMON_SYSCALL_PRE_FORK
56# define COMMON_SYSCALL_PRE_FORK()
57#endif
58
59#ifndef COMMON_SYSCALL_POST_FORK
60# define COMMON_SYSCALL_POST_FORK(res)
61#endif
62
63// FIXME: do some kind of PRE_READ for all syscall arguments (int(s) and such).
64
65extern "C" {
66struct sanitizer_kernel_iovec {
67  void *iov_base;
68  unsigned long iov_len;
69};
70
71struct sanitizer_kernel_msghdr {
72  void *msg_name;
73  int msg_namelen;
74  struct sanitizer_kernel_iovec *msg_iov;
75  unsigned long msg_iovlen;
76  void *msg_control;
77  unsigned long msg_controllen;
78  unsigned msg_flags;
79};
80
81struct sanitizer_kernel_mmsghdr {
82  struct sanitizer_kernel_msghdr msg_hdr;
83  unsigned msg_len;
84};
85
86struct sanitizer_kernel_timespec {
87  long tv_sec;
88  long tv_nsec;
89};
90
91struct sanitizer_kernel_timeval {
92  long tv_sec;
93  long tv_usec;
94};
95
96struct sanitizer_kernel_rusage {
97  struct sanitizer_kernel_timeval ru_timeval[2];
98  long ru_long[14];
99};
100
101struct sanitizer_kernel_sockaddr {
102  unsigned short sa_family;
103  char sa_data[14];
104};
105
106// Real sigset size is always passed as a syscall argument.
107// Declare it "void" to catch sizeof(kernel_sigset_t).
108typedef void kernel_sigset_t;
109
110static void kernel_write_iovec(const __sanitizer_iovec *iovec,
111                        SIZE_T iovlen, SIZE_T maxlen) {
112  for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
113    SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
114    POST_WRITE(iovec[i].iov_base, sz);
115    maxlen -= sz;
116  }
117}
118
119// This functions uses POST_READ, because it needs to run after syscall to know
120// the real read range.
121static void kernel_read_iovec(const __sanitizer_iovec *iovec,
122                       SIZE_T iovlen, SIZE_T maxlen) {
123  POST_READ(iovec, sizeof(*iovec) * iovlen);
124  for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
125    SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
126    POST_READ(iovec[i].iov_base, sz);
127    maxlen -= sz;
128  }
129}
130
131PRE_SYSCALL(recvmsg)(long sockfd, sanitizer_kernel_msghdr *msg, long flags) {
132  PRE_READ(msg, sizeof(*msg));
133}
134
135POST_SYSCALL(recvmsg)(long res, long sockfd, sanitizer_kernel_msghdr *msg,
136                      long flags) {
137  if (res >= 0) {
138    if (msg) {
139      for (unsigned long i = 0; i < msg->msg_iovlen; ++i) {
140        POST_WRITE(msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len);
141      }
142      POST_WRITE(msg->msg_control, msg->msg_controllen);
143    }
144  }
145}
146
147PRE_SYSCALL(recvmmsg)(long fd, sanitizer_kernel_mmsghdr *msg, long vlen,
148                      long flags, void *timeout) {
149  PRE_READ(msg, vlen * sizeof(*msg));
150}
151
152POST_SYSCALL(recvmmsg)(long res, long fd, sanitizer_kernel_mmsghdr *msg,
153                       long vlen, long flags, void *timeout) {
154  if (res >= 0) {
155    if (msg) {
156      for (unsigned long i = 0; i < msg->msg_hdr.msg_iovlen; ++i) {
157        POST_WRITE(msg->msg_hdr.msg_iov[i].iov_base,
158                   msg->msg_hdr.msg_iov[i].iov_len);
159      }
160      POST_WRITE(msg->msg_hdr.msg_control, msg->msg_hdr.msg_controllen);
161      POST_WRITE(&msg->msg_len, sizeof(msg->msg_len));
162    }
163    if (timeout) POST_WRITE(timeout, struct_timespec_sz);
164  }
165}
166
167PRE_SYSCALL(read)(long fd, void *buf, uptr count) {
168  if (buf) {
169    PRE_WRITE(buf, count);
170  }
171}
172
173POST_SYSCALL(read)(long res, long fd, void *buf, uptr count) {
174  if (res > 0 && buf) {
175    POST_WRITE(buf, res);
176  }
177}
178
179PRE_SYSCALL(time)(void *tloc) {}
180
181POST_SYSCALL(time)(long res, void *tloc) {
182  if (res >= 0) {
183    if (tloc) POST_WRITE(tloc, sizeof(long));
184  }
185}
186
187PRE_SYSCALL(stime)(void *tptr) {}
188
189POST_SYSCALL(stime)(long res, void *tptr) {
190  if (res >= 0) {
191    if (tptr) POST_WRITE(tptr, sizeof(long));
192  }
193}
194
195PRE_SYSCALL(gettimeofday)(void *tv, void *tz) {}
196
197POST_SYSCALL(gettimeofday)(long res, void *tv, void *tz) {
198  if (res >= 0) {
199    if (tv) POST_WRITE(tv, timeval_sz);
200    if (tz) POST_WRITE(tz, struct_timezone_sz);
201  }
202}
203
204PRE_SYSCALL(settimeofday)(void *tv, void *tz) {}
205
206POST_SYSCALL(settimeofday)(long res, void *tv, void *tz) {
207  if (res >= 0) {
208    if (tv) POST_WRITE(tv, timeval_sz);
209    if (tz) POST_WRITE(tz, struct_timezone_sz);
210  }
211}
212
213PRE_SYSCALL(adjtimex)(void *txc_p) {}
214
215POST_SYSCALL(adjtimex)(long res, void *txc_p) {
216  if (res >= 0) {
217    if (txc_p) POST_WRITE(txc_p, struct_timex_sz);
218  }
219}
220
221PRE_SYSCALL(times)(void *tbuf) {}
222
223POST_SYSCALL(times)(long res, void *tbuf) {
224  if (res >= 0) {
225    if (tbuf) POST_WRITE(tbuf, struct_tms_sz);
226  }
227}
228
229PRE_SYSCALL(gettid)() {}
230
231POST_SYSCALL(gettid)(long res) {}
232
233PRE_SYSCALL(nanosleep)(void *rqtp, void *rmtp) {}
234
235POST_SYSCALL(nanosleep)(long res, void *rqtp, void *rmtp) {
236  if (res >= 0) {
237    if (rqtp) POST_WRITE(rqtp, struct_timespec_sz);
238    if (rmtp) POST_WRITE(rmtp, struct_timespec_sz);
239  }
240}
241
242PRE_SYSCALL(alarm)(long seconds) {}
243
244POST_SYSCALL(alarm)(long res, long seconds) {}
245
246PRE_SYSCALL(getpid)() {}
247
248POST_SYSCALL(getpid)(long res) {}
249
250PRE_SYSCALL(getppid)() {}
251
252POST_SYSCALL(getppid)(long res) {}
253
254PRE_SYSCALL(getuid)() {}
255
256POST_SYSCALL(getuid)(long res) {}
257
258PRE_SYSCALL(geteuid)() {}
259
260POST_SYSCALL(geteuid)(long res) {}
261
262PRE_SYSCALL(getgid)() {}
263
264POST_SYSCALL(getgid)(long res) {}
265
266PRE_SYSCALL(getegid)() {}
267
268POST_SYSCALL(getegid)(long res) {}
269
270PRE_SYSCALL(getresuid)(void *ruid, void *euid, void *suid) {}
271
272POST_SYSCALL(getresuid)(long res, void *ruid, void *euid, void *suid) {
273  if (res >= 0) {
274    if (ruid) POST_WRITE(ruid, sizeof(unsigned));
275    if (euid) POST_WRITE(euid, sizeof(unsigned));
276    if (suid) POST_WRITE(suid, sizeof(unsigned));
277  }
278}
279
280PRE_SYSCALL(getresgid)(void *rgid, void *egid, void *sgid) {}
281
282POST_SYSCALL(getresgid)(long res, void *rgid, void *egid, void *sgid) {
283  if (res >= 0) {
284    if (rgid) POST_WRITE(rgid, sizeof(unsigned));
285    if (egid) POST_WRITE(egid, sizeof(unsigned));
286    if (sgid) POST_WRITE(sgid, sizeof(unsigned));
287  }
288}
289
290PRE_SYSCALL(getpgid)(long pid) {}
291
292POST_SYSCALL(getpgid)(long res, long pid) {}
293
294PRE_SYSCALL(getpgrp)() {}
295
296POST_SYSCALL(getpgrp)(long res) {}
297
298PRE_SYSCALL(getsid)(long pid) {}
299
300POST_SYSCALL(getsid)(long res, long pid) {}
301
302PRE_SYSCALL(getgroups)(long gidsetsize, void *grouplist) {}
303
304POST_SYSCALL(getgroups)(long res, long gidsetsize,
305                        __sanitizer___kernel_gid_t *grouplist) {
306  if (res >= 0) {
307    if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist));
308  }
309}
310
311PRE_SYSCALL(setregid)(long rgid, long egid) {}
312
313POST_SYSCALL(setregid)(long res, long rgid, long egid) {}
314
315PRE_SYSCALL(setgid)(long gid) {}
316
317POST_SYSCALL(setgid)(long res, long gid) {}
318
319PRE_SYSCALL(setreuid)(long ruid, long euid) {}
320
321POST_SYSCALL(setreuid)(long res, long ruid, long euid) {}
322
323PRE_SYSCALL(setuid)(long uid) {}
324
325POST_SYSCALL(setuid)(long res, long uid) {}
326
327PRE_SYSCALL(setresuid)(long ruid, long euid, long suid) {}
328
329POST_SYSCALL(setresuid)(long res, long ruid, long euid, long suid) {}
330
331PRE_SYSCALL(setresgid)(long rgid, long egid, long sgid) {}
332
333POST_SYSCALL(setresgid)(long res, long rgid, long egid, long sgid) {}
334
335PRE_SYSCALL(setfsuid)(long uid) {}
336
337POST_SYSCALL(setfsuid)(long res, long uid) {}
338
339PRE_SYSCALL(setfsgid)(long gid) {}
340
341POST_SYSCALL(setfsgid)(long res, long gid) {}
342
343PRE_SYSCALL(setpgid)(long pid, long pgid) {}
344
345POST_SYSCALL(setpgid)(long res, long pid, long pgid) {}
346
347PRE_SYSCALL(setsid)() {}
348
349POST_SYSCALL(setsid)(long res) {}
350
351PRE_SYSCALL(setgroups)(long gidsetsize, __sanitizer___kernel_gid_t *grouplist) {
352  if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
353}
354
355POST_SYSCALL(setgroups)(long res, long gidsetsize,
356                        __sanitizer___kernel_gid_t *grouplist) {}
357
358PRE_SYSCALL(acct)(const void *name) {
359  if (name)
360    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
361}
362
363POST_SYSCALL(acct)(long res, const void *name) {}
364
365PRE_SYSCALL(capget)(void *header, void *dataptr) {}
366
367POST_SYSCALL(capget)(long res, void *header, void *dataptr) {
368  if (res >= 0) {
369    if (header) POST_WRITE(header, __user_cap_header_struct_sz);
370    if (dataptr) POST_WRITE(dataptr, __user_cap_data_struct_sz);
371  }
372}
373
374PRE_SYSCALL(capset)(void *header, const void *data) {
375  if (data) PRE_READ(data, __user_cap_data_struct_sz);
376}
377
378POST_SYSCALL(capset)(long res, void *header, const void *data) {
379  if (res >= 0) {
380    if (header) POST_WRITE(header, __user_cap_header_struct_sz);
381  }
382}
383
384PRE_SYSCALL(personality)(long personality) {}
385
386POST_SYSCALL(personality)(long res, long personality) {}
387
388PRE_SYSCALL(sigpending)(void *set) {}
389
390POST_SYSCALL(sigpending)(long res, void *set) {
391  if (res >= 0) {
392    if (set) POST_WRITE(set, old_sigset_t_sz);
393  }
394}
395
396PRE_SYSCALL(sigprocmask)(long how, void *set, void *oset) {}
397
398POST_SYSCALL(sigprocmask)(long res, long how, void *set, void *oset) {
399  if (res >= 0) {
400    if (set) POST_WRITE(set, old_sigset_t_sz);
401    if (oset) POST_WRITE(oset, old_sigset_t_sz);
402  }
403}
404
405PRE_SYSCALL(getitimer)(long which, void *value) {}
406
407POST_SYSCALL(getitimer)(long res, long which, void *value) {
408  if (res >= 0) {
409    if (value) POST_WRITE(value, struct_itimerval_sz);
410  }
411}
412
413PRE_SYSCALL(setitimer)(long which, void *value, void *ovalue) {}
414
415POST_SYSCALL(setitimer)(long res, long which, void *value, void *ovalue) {
416  if (res >= 0) {
417    if (value) POST_WRITE(value, struct_itimerval_sz);
418    if (ovalue) POST_WRITE(ovalue, struct_itimerval_sz);
419  }
420}
421
422PRE_SYSCALL(timer_create)(long which_clock, void *timer_event_spec,
423                          void *created_timer_id) {}
424
425POST_SYSCALL(timer_create)(long res, long which_clock, void *timer_event_spec,
426                           void *created_timer_id) {
427  if (res >= 0) {
428    if (timer_event_spec) POST_WRITE(timer_event_spec, struct_sigevent_sz);
429    if (created_timer_id) POST_WRITE(created_timer_id, sizeof(long));
430  }
431}
432
433PRE_SYSCALL(timer_gettime)(long timer_id, void *setting) {}
434
435POST_SYSCALL(timer_gettime)(long res, long timer_id, void *setting) {
436  if (res >= 0) {
437    if (setting) POST_WRITE(setting, struct_itimerspec_sz);
438  }
439}
440
441PRE_SYSCALL(timer_getoverrun)(long timer_id) {}
442
443POST_SYSCALL(timer_getoverrun)(long res, long timer_id) {}
444
445PRE_SYSCALL(timer_settime)(long timer_id, long flags, const void *new_setting,
446                           void *old_setting) {
447  if (new_setting) PRE_READ(new_setting, struct_itimerspec_sz);
448}
449
450POST_SYSCALL(timer_settime)(long res, long timer_id, long flags,
451                            const void *new_setting, void *old_setting) {
452  if (res >= 0) {
453    if (old_setting) POST_WRITE(old_setting, struct_itimerspec_sz);
454  }
455}
456
457PRE_SYSCALL(timer_delete)(long timer_id) {}
458
459POST_SYSCALL(timer_delete)(long res, long timer_id) {}
460
461PRE_SYSCALL(clock_settime)(long which_clock, const void *tp) {
462  if (tp) PRE_READ(tp, struct_timespec_sz);
463}
464
465POST_SYSCALL(clock_settime)(long res, long which_clock, const void *tp) {}
466
467PRE_SYSCALL(clock_gettime)(long which_clock, void *tp) {}
468
469POST_SYSCALL(clock_gettime)(long res, long which_clock, void *tp) {
470  if (res >= 0) {
471    if (tp) POST_WRITE(tp, struct_timespec_sz);
472  }
473}
474
475PRE_SYSCALL(clock_adjtime)(long which_clock, void *tx) {}
476
477POST_SYSCALL(clock_adjtime)(long res, long which_clock, void *tx) {
478  if (res >= 0) {
479    if (tx) POST_WRITE(tx, struct_timex_sz);
480  }
481}
482
483PRE_SYSCALL(clock_getres)(long which_clock, void *tp) {}
484
485POST_SYSCALL(clock_getres)(long res, long which_clock, void *tp) {
486  if (res >= 0) {
487    if (tp) POST_WRITE(tp, struct_timespec_sz);
488  }
489}
490
491PRE_SYSCALL(clock_nanosleep)(long which_clock, long flags, const void *rqtp,
492                             void *rmtp) {
493  if (rqtp) PRE_READ(rqtp, struct_timespec_sz);
494}
495
496POST_SYSCALL(clock_nanosleep)(long res, long which_clock, long flags,
497                              const void *rqtp, void *rmtp) {
498  if (res >= 0) {
499    if (rmtp) POST_WRITE(rmtp, struct_timespec_sz);
500  }
501}
502
503PRE_SYSCALL(nice)(long increment) {}
504
505POST_SYSCALL(nice)(long res, long increment) {}
506
507PRE_SYSCALL(sched_setscheduler)(long pid, long policy, void *param) {}
508
509POST_SYSCALL(sched_setscheduler)(long res, long pid, long policy, void *param) {
510  if (res >= 0) {
511    if (param) POST_WRITE(param, struct_sched_param_sz);
512  }
513}
514
515PRE_SYSCALL(sched_setparam)(long pid, void *param) {
516  if (param) PRE_READ(param, struct_sched_param_sz);
517}
518
519POST_SYSCALL(sched_setparam)(long res, long pid, void *param) {}
520
521PRE_SYSCALL(sched_getscheduler)(long pid) {}
522
523POST_SYSCALL(sched_getscheduler)(long res, long pid) {}
524
525PRE_SYSCALL(sched_getparam)(long pid, void *param) {}
526
527POST_SYSCALL(sched_getparam)(long res, long pid, void *param) {
528  if (res >= 0) {
529    if (param) POST_WRITE(param, struct_sched_param_sz);
530  }
531}
532
533PRE_SYSCALL(sched_setaffinity)(long pid, long len, void *user_mask_ptr) {
534  if (user_mask_ptr) PRE_READ(user_mask_ptr, len);
535}
536
537POST_SYSCALL(sched_setaffinity)(long res, long pid, long len,
538                                void *user_mask_ptr) {}
539
540PRE_SYSCALL(sched_getaffinity)(long pid, long len, void *user_mask_ptr) {}
541
542POST_SYSCALL(sched_getaffinity)(long res, long pid, long len,
543                                void *user_mask_ptr) {
544  if (res >= 0) {
545    if (user_mask_ptr) POST_WRITE(user_mask_ptr, len);
546  }
547}
548
549PRE_SYSCALL(sched_yield)() {}
550
551POST_SYSCALL(sched_yield)(long res) {}
552
553PRE_SYSCALL(sched_get_priority_max)(long policy) {}
554
555POST_SYSCALL(sched_get_priority_max)(long res, long policy) {}
556
557PRE_SYSCALL(sched_get_priority_min)(long policy) {}
558
559POST_SYSCALL(sched_get_priority_min)(long res, long policy) {}
560
561PRE_SYSCALL(sched_rr_get_interval)(long pid, void *interval) {}
562
563POST_SYSCALL(sched_rr_get_interval)(long res, long pid, void *interval) {
564  if (res >= 0) {
565    if (interval) POST_WRITE(interval, struct_timespec_sz);
566  }
567}
568
569PRE_SYSCALL(setpriority)(long which, long who, long niceval) {}
570
571POST_SYSCALL(setpriority)(long res, long which, long who, long niceval) {}
572
573PRE_SYSCALL(getpriority)(long which, long who) {}
574
575POST_SYSCALL(getpriority)(long res, long which, long who) {}
576
577PRE_SYSCALL(shutdown)(long arg0, long arg1) {}
578
579POST_SYSCALL(shutdown)(long res, long arg0, long arg1) {}
580
581PRE_SYSCALL(reboot)(long magic1, long magic2, long cmd, void *arg) {}
582
583POST_SYSCALL(reboot)(long res, long magic1, long magic2, long cmd, void *arg) {}
584
585PRE_SYSCALL(restart_syscall)() {}
586
587POST_SYSCALL(restart_syscall)(long res) {}
588
589PRE_SYSCALL(kexec_load)(long entry, long nr_segments, void *segments,
590                        long flags) {}
591
592POST_SYSCALL(kexec_load)(long res, long entry, long nr_segments, void *segments,
593                         long flags) {
594  if (res >= 0) {
595    if (segments) POST_WRITE(segments, struct_kexec_segment_sz);
596  }
597}
598
599PRE_SYSCALL(exit)(long error_code) {}
600
601POST_SYSCALL(exit)(long res, long error_code) {}
602
603PRE_SYSCALL(exit_group)(long error_code) {}
604
605POST_SYSCALL(exit_group)(long res, long error_code) {}
606
607PRE_SYSCALL(wait4)(long pid, void *stat_addr, long options, void *ru) {}
608
609POST_SYSCALL(wait4)(long res, long pid, void *stat_addr, long options,
610                    void *ru) {
611  if (res >= 0) {
612    if (stat_addr) POST_WRITE(stat_addr, sizeof(int));
613    if (ru) POST_WRITE(ru, struct_rusage_sz);
614  }
615}
616
617PRE_SYSCALL(waitid)(long which, long pid, void *infop, long options, void *ru) {
618}
619
620POST_SYSCALL(waitid)(long res, long which, long pid, void *infop, long options,
621                     void *ru) {
622  if (res >= 0) {
623    if (infop) POST_WRITE(infop, siginfo_t_sz);
624    if (ru) POST_WRITE(ru, struct_rusage_sz);
625  }
626}
627
628PRE_SYSCALL(waitpid)(long pid, void *stat_addr, long options) {}
629
630POST_SYSCALL(waitpid)(long res, long pid, void *stat_addr, long options) {
631  if (res >= 0) {
632    if (stat_addr) POST_WRITE(stat_addr, sizeof(int));
633  }
634}
635
636PRE_SYSCALL(set_tid_address)(void *tidptr) {}
637
638POST_SYSCALL(set_tid_address)(long res, void *tidptr) {
639  if (res >= 0) {
640    if (tidptr) POST_WRITE(tidptr, sizeof(int));
641  }
642}
643
644PRE_SYSCALL(init_module)(void *umod, long len, const void *uargs) {
645  if (uargs)
646    PRE_READ(uargs, __sanitizer::internal_strlen((const char *)uargs) + 1);
647}
648
649POST_SYSCALL(init_module)(long res, void *umod, long len, const void *uargs) {}
650
651PRE_SYSCALL(delete_module)(const void *name_user, long flags) {
652  if (name_user)
653    PRE_READ(name_user,
654             __sanitizer::internal_strlen((const char *)name_user) + 1);
655}
656
657POST_SYSCALL(delete_module)(long res, const void *name_user, long flags) {}
658
659PRE_SYSCALL(rt_sigprocmask)(long how, void *set, void *oset, long sigsetsize) {}
660
661POST_SYSCALL(rt_sigprocmask)(long res, long how, kernel_sigset_t *set,
662                             kernel_sigset_t *oset, long sigsetsize) {
663  if (res >= 0) {
664    if (set) POST_WRITE(set, sigsetsize);
665    if (oset) POST_WRITE(oset, sigsetsize);
666  }
667}
668
669PRE_SYSCALL(rt_sigpending)(void *set, long sigsetsize) {}
670
671POST_SYSCALL(rt_sigpending)(long res, kernel_sigset_t *set, long sigsetsize) {
672  if (res >= 0) {
673    if (set) POST_WRITE(set, sigsetsize);
674  }
675}
676
677PRE_SYSCALL(rt_sigtimedwait)(const kernel_sigset_t *uthese, void *uinfo,
678                             const void *uts, long sigsetsize) {
679  if (uthese) PRE_READ(uthese, sigsetsize);
680  if (uts) PRE_READ(uts, struct_timespec_sz);
681}
682
683POST_SYSCALL(rt_sigtimedwait)(long res, const void *uthese, void *uinfo,
684                              const void *uts, long sigsetsize) {
685  if (res >= 0) {
686    if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
687  }
688}
689
690PRE_SYSCALL(rt_tgsigqueueinfo)(long tgid, long pid, long sig, void *uinfo) {}
691
692POST_SYSCALL(rt_tgsigqueueinfo)(long res, long tgid, long pid, long sig,
693                                void *uinfo) {
694  if (res >= 0) {
695    if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
696  }
697}
698
699PRE_SYSCALL(kill)(long pid, long sig) {}
700
701POST_SYSCALL(kill)(long res, long pid, long sig) {}
702
703PRE_SYSCALL(tgkill)(long tgid, long pid, long sig) {}
704
705POST_SYSCALL(tgkill)(long res, long tgid, long pid, long sig) {}
706
707PRE_SYSCALL(tkill)(long pid, long sig) {}
708
709POST_SYSCALL(tkill)(long res, long pid, long sig) {}
710
711PRE_SYSCALL(rt_sigqueueinfo)(long pid, long sig, void *uinfo) {}
712
713POST_SYSCALL(rt_sigqueueinfo)(long res, long pid, long sig, void *uinfo) {
714  if (res >= 0) {
715    if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
716  }
717}
718
719PRE_SYSCALL(sgetmask)() {}
720
721POST_SYSCALL(sgetmask)(long res) {}
722
723PRE_SYSCALL(ssetmask)(long newmask) {}
724
725POST_SYSCALL(ssetmask)(long res, long newmask) {}
726
727PRE_SYSCALL(signal)(long sig, long handler) {}
728
729POST_SYSCALL(signal)(long res, long sig, long handler) {}
730
731PRE_SYSCALL(pause)() {}
732
733POST_SYSCALL(pause)(long res) {}
734
735PRE_SYSCALL(sync)() {}
736
737POST_SYSCALL(sync)(long res) {}
738
739PRE_SYSCALL(fsync)(long fd) {}
740
741POST_SYSCALL(fsync)(long res, long fd) {}
742
743PRE_SYSCALL(fdatasync)(long fd) {}
744
745POST_SYSCALL(fdatasync)(long res, long fd) {}
746
747PRE_SYSCALL(bdflush)(long func, long data) {}
748
749POST_SYSCALL(bdflush)(long res, long func, long data) {}
750
751PRE_SYSCALL(mount)(void *dev_name, void *dir_name, void *type, long flags,
752                   void *data) {}
753
754POST_SYSCALL(mount)(long res, void *dev_name, void *dir_name, void *type,
755                    long flags, void *data) {
756  if (res >= 0) {
757    if (dev_name)
758      POST_WRITE(dev_name,
759                 __sanitizer::internal_strlen((const char *)dev_name) + 1);
760    if (dir_name)
761      POST_WRITE(dir_name,
762                 __sanitizer::internal_strlen((const char *)dir_name) + 1);
763    if (type)
764      POST_WRITE(type, __sanitizer::internal_strlen((const char *)type) + 1);
765  }
766}
767
768PRE_SYSCALL(umount)(void *name, long flags) {}
769
770POST_SYSCALL(umount)(long res, void *name, long flags) {
771  if (res >= 0) {
772    if (name)
773      POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
774  }
775}
776
777PRE_SYSCALL(oldumount)(void *name) {}
778
779POST_SYSCALL(oldumount)(long res, void *name) {
780  if (res >= 0) {
781    if (name)
782      POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
783  }
784}
785
786PRE_SYSCALL(truncate)(const void *path, long length) {
787  if (path)
788    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
789}
790
791POST_SYSCALL(truncate)(long res, const void *path, long length) {}
792
793PRE_SYSCALL(ftruncate)(long fd, long length) {}
794
795POST_SYSCALL(ftruncate)(long res, long fd, long length) {}
796
797PRE_SYSCALL(stat)(const void *filename, void *statbuf) {
798  if (filename)
799    PRE_READ(filename,
800             __sanitizer::internal_strlen((const char *)filename) + 1);
801}
802
803POST_SYSCALL(stat)(long res, const void *filename, void *statbuf) {
804  if (res >= 0) {
805    if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
806  }
807}
808
809PRE_SYSCALL(statfs)(const void *path, void *buf) {
810  if (path)
811    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
812}
813
814POST_SYSCALL(statfs)(long res, const void *path, void *buf) {
815  if (res >= 0) {
816    if (buf) POST_WRITE(buf, struct_statfs_sz);
817  }
818}
819
820PRE_SYSCALL(statfs64)(const void *path, long sz, void *buf) {
821  if (path)
822    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
823}
824
825POST_SYSCALL(statfs64)(long res, const void *path, long sz, void *buf) {
826  if (res >= 0) {
827    if (buf) POST_WRITE(buf, struct_statfs64_sz);
828  }
829}
830
831PRE_SYSCALL(fstatfs)(long fd, void *buf) {}
832
833POST_SYSCALL(fstatfs)(long res, long fd, void *buf) {
834  if (res >= 0) {
835    if (buf) POST_WRITE(buf, struct_statfs_sz);
836  }
837}
838
839PRE_SYSCALL(fstatfs64)(long fd, long sz, void *buf) {}
840
841POST_SYSCALL(fstatfs64)(long res, long fd, long sz, void *buf) {
842  if (res >= 0) {
843    if (buf) POST_WRITE(buf, struct_statfs64_sz);
844  }
845}
846
847PRE_SYSCALL(lstat)(const void *filename, void *statbuf) {
848  if (filename)
849    PRE_READ(filename,
850             __sanitizer::internal_strlen((const char *)filename) + 1);
851}
852
853POST_SYSCALL(lstat)(long res, const void *filename, void *statbuf) {
854  if (res >= 0) {
855    if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
856  }
857}
858
859PRE_SYSCALL(fstat)(long fd, void *statbuf) {}
860
861POST_SYSCALL(fstat)(long res, long fd, void *statbuf) {
862  if (res >= 0) {
863    if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
864  }
865}
866
867PRE_SYSCALL(newstat)(const void *filename, void *statbuf) {
868  if (filename)
869    PRE_READ(filename,
870             __sanitizer::internal_strlen((const char *)filename) + 1);
871}
872
873POST_SYSCALL(newstat)(long res, const void *filename, void *statbuf) {
874  if (res >= 0) {
875    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
876  }
877}
878
879PRE_SYSCALL(newlstat)(const void *filename, void *statbuf) {
880  if (filename)
881    PRE_READ(filename,
882             __sanitizer::internal_strlen((const char *)filename) + 1);
883}
884
885POST_SYSCALL(newlstat)(long res, const void *filename, void *statbuf) {
886  if (res >= 0) {
887    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
888  }
889}
890
891PRE_SYSCALL(newfstat)(long fd, void *statbuf) {}
892
893POST_SYSCALL(newfstat)(long res, long fd, void *statbuf) {
894  if (res >= 0) {
895    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
896  }
897}
898
899PRE_SYSCALL(ustat)(long dev, void *ubuf) {}
900
901POST_SYSCALL(ustat)(long res, long dev, void *ubuf) {
902  if (res >= 0) {
903    if (ubuf) POST_WRITE(ubuf, struct_ustat_sz);
904  }
905}
906
907PRE_SYSCALL(stat64)(const void *filename, void *statbuf) {
908  if (filename)
909    PRE_READ(filename,
910             __sanitizer::internal_strlen((const char *)filename) + 1);
911}
912
913POST_SYSCALL(stat64)(long res, const void *filename, void *statbuf) {
914  if (res >= 0) {
915    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
916  }
917}
918
919PRE_SYSCALL(fstat64)(long fd, void *statbuf) {}
920
921POST_SYSCALL(fstat64)(long res, long fd, void *statbuf) {
922  if (res >= 0) {
923    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
924  }
925}
926
927PRE_SYSCALL(lstat64)(const void *filename, void *statbuf) {
928  if (filename)
929    PRE_READ(filename,
930             __sanitizer::internal_strlen((const char *)filename) + 1);
931}
932
933POST_SYSCALL(lstat64)(long res, const void *filename, void *statbuf) {
934  if (res >= 0) {
935    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
936  }
937}
938
939PRE_SYSCALL(setxattr)(const void *path, const void *name, const void *value,
940                      long size, long flags) {
941  if (path)
942    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
943  if (name)
944    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
945  if (value) PRE_READ(value, size);
946}
947
948POST_SYSCALL(setxattr)(long res, const void *path, const void *name,
949                       const void *value, long size, long flags) {}
950
951PRE_SYSCALL(lsetxattr)(const void *path, const void *name, const void *value,
952                       long size, long flags) {
953  if (path)
954    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
955  if (name)
956    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
957  if (value) PRE_READ(value, size);
958}
959
960POST_SYSCALL(lsetxattr)(long res, const void *path, const void *name,
961                        const void *value, long size, long flags) {}
962
963PRE_SYSCALL(fsetxattr)(long fd, const void *name, const void *value, long size,
964                       long flags) {
965  if (name)
966    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
967  if (value) PRE_READ(value, size);
968}
969
970POST_SYSCALL(fsetxattr)(long res, long fd, const void *name, const void *value,
971                        long size, long flags) {}
972
973PRE_SYSCALL(getxattr)(const void *path, const void *name, void *value,
974                      long size) {
975  if (path)
976    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
977  if (name)
978    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
979}
980
981POST_SYSCALL(getxattr)(long res, const void *path, const void *name,
982                       void *value, long size) {
983  if (res >= 0) {
984    if (value) POST_WRITE(value, size);
985  }
986}
987
988PRE_SYSCALL(lgetxattr)(const void *path, const void *name, void *value,
989                       long size) {
990  if (path)
991    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
992  if (name)
993    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
994}
995
996POST_SYSCALL(lgetxattr)(long res, const void *path, const void *name,
997                        void *value, long size) {
998  if (res >= 0) {
999    if (value) POST_WRITE(value, size);
1000  }
1001}
1002
1003PRE_SYSCALL(fgetxattr)(long fd, const void *name, void *value, long size) {
1004  if (name)
1005    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1006}
1007
1008POST_SYSCALL(fgetxattr)(long res, long fd, const void *name, void *value,
1009                        long size) {
1010  if (res >= 0) {
1011    if (value) POST_WRITE(value, size);
1012  }
1013}
1014
1015PRE_SYSCALL(listxattr)(const void *path, void *list, long size) {
1016  if (path)
1017    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1018}
1019
1020POST_SYSCALL(listxattr)(long res, const void *path, void *list, long size) {
1021  if (res >= 0) {
1022    if (list) POST_WRITE(list, size);
1023  }
1024}
1025
1026PRE_SYSCALL(llistxattr)(const void *path, void *list, long size) {
1027  if (path)
1028    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1029}
1030
1031POST_SYSCALL(llistxattr)(long res, const void *path, void *list, long size) {
1032  if (res >= 0) {
1033    if (list) POST_WRITE(list, size);
1034  }
1035}
1036
1037PRE_SYSCALL(flistxattr)(long fd, void *list, long size) {}
1038
1039POST_SYSCALL(flistxattr)(long res, long fd, void *list, long size) {
1040  if (res >= 0) {
1041    if (list) POST_WRITE(list, size);
1042  }
1043}
1044
1045PRE_SYSCALL(removexattr)(const void *path, const void *name) {
1046  if (path)
1047    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1048  if (name)
1049    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1050}
1051
1052POST_SYSCALL(removexattr)(long res, const void *path, const void *name) {}
1053
1054PRE_SYSCALL(lremovexattr)(const void *path, const void *name) {
1055  if (path)
1056    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1057  if (name)
1058    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1059}
1060
1061POST_SYSCALL(lremovexattr)(long res, const void *path, const void *name) {}
1062
1063PRE_SYSCALL(fremovexattr)(long fd, const void *name) {
1064  if (name)
1065    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
1066}
1067
1068POST_SYSCALL(fremovexattr)(long res, long fd, const void *name) {}
1069
1070PRE_SYSCALL(brk)(long brk) {}
1071
1072POST_SYSCALL(brk)(long res, long brk) {}
1073
1074PRE_SYSCALL(mprotect)(long start, long len, long prot) {}
1075
1076POST_SYSCALL(mprotect)(long res, long start, long len, long prot) {}
1077
1078PRE_SYSCALL(mremap)(long addr, long old_len, long new_len, long flags,
1079                    long new_addr) {}
1080
1081POST_SYSCALL(mremap)(long res, long addr, long old_len, long new_len,
1082                     long flags, long new_addr) {}
1083
1084PRE_SYSCALL(remap_file_pages)(long start, long size, long prot, long pgoff,
1085                              long flags) {}
1086
1087POST_SYSCALL(remap_file_pages)(long res, long start, long size, long prot,
1088                               long pgoff, long flags) {}
1089
1090PRE_SYSCALL(msync)(long start, long len, long flags) {}
1091
1092POST_SYSCALL(msync)(long res, long start, long len, long flags) {}
1093
1094PRE_SYSCALL(munmap)(long addr, long len) {}
1095
1096POST_SYSCALL(munmap)(long res, long addr, long len) {}
1097
1098PRE_SYSCALL(mlock)(long start, long len) {}
1099
1100POST_SYSCALL(mlock)(long res, long start, long len) {}
1101
1102PRE_SYSCALL(munlock)(long start, long len) {}
1103
1104POST_SYSCALL(munlock)(long res, long start, long len) {}
1105
1106PRE_SYSCALL(mlockall)(long flags) {}
1107
1108POST_SYSCALL(mlockall)(long res, long flags) {}
1109
1110PRE_SYSCALL(munlockall)() {}
1111
1112POST_SYSCALL(munlockall)(long res) {}
1113
1114PRE_SYSCALL(madvise)(long start, long len, long behavior) {}
1115
1116POST_SYSCALL(madvise)(long res, long start, long len, long behavior) {}
1117
1118PRE_SYSCALL(mincore)(long start, long len, void *vec) {}
1119
1120POST_SYSCALL(mincore)(long res, long start, long len, void *vec) {
1121  if (res >= 0) {
1122    if (vec) {
1123      POST_WRITE(vec, (len + GetPageSizeCached() - 1) / GetPageSizeCached());
1124    }
1125  }
1126}
1127
1128PRE_SYSCALL(pivot_root)(const void *new_root, const void *put_old) {
1129  if (new_root)
1130    PRE_READ(new_root,
1131             __sanitizer::internal_strlen((const char *)new_root) + 1);
1132  if (put_old)
1133    PRE_READ(put_old, __sanitizer::internal_strlen((const char *)put_old) + 1);
1134}
1135
1136POST_SYSCALL(pivot_root)(long res, const void *new_root, const void *put_old) {}
1137
1138PRE_SYSCALL(chroot)(const void *filename) {
1139  if (filename)
1140    PRE_READ(filename,
1141             __sanitizer::internal_strlen((const char *)filename) + 1);
1142}
1143
1144POST_SYSCALL(chroot)(long res, const void *filename) {}
1145
1146PRE_SYSCALL(mknod)(const void *filename, long mode, long dev) {
1147  if (filename)
1148    PRE_READ(filename,
1149             __sanitizer::internal_strlen((const char *)filename) + 1);
1150}
1151
1152POST_SYSCALL(mknod)(long res, const void *filename, long mode, long dev) {}
1153
1154PRE_SYSCALL(link)(const void *oldname, const void *newname) {
1155  if (oldname)
1156    PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
1157  if (newname)
1158    PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
1159}
1160
1161POST_SYSCALL(link)(long res, const void *oldname, const void *newname) {}
1162
1163PRE_SYSCALL(symlink)(const void *old, const void *new_) {
1164  if (old) PRE_READ(old, __sanitizer::internal_strlen((const char *)old) + 1);
1165  if (new_)
1166    PRE_READ(new_, __sanitizer::internal_strlen((const char *)new_) + 1);
1167}
1168
1169POST_SYSCALL(symlink)(long res, const void *old, const void *new_) {}
1170
1171PRE_SYSCALL(unlink)(const void *pathname) {
1172  if (pathname)
1173    PRE_READ(pathname,
1174             __sanitizer::internal_strlen((const char *)pathname) + 1);
1175}
1176
1177POST_SYSCALL(unlink)(long res, const void *pathname) {}
1178
1179PRE_SYSCALL(rename)(const void *oldname, const void *newname) {
1180  if (oldname)
1181    PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
1182  if (newname)
1183    PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
1184}
1185
1186POST_SYSCALL(rename)(long res, const void *oldname, const void *newname) {}
1187
1188PRE_SYSCALL(chmod)(const void *filename, long mode) {
1189  if (filename)
1190    PRE_READ(filename,
1191             __sanitizer::internal_strlen((const char *)filename) + 1);
1192}
1193
1194POST_SYSCALL(chmod)(long res, const void *filename, long mode) {}
1195
1196PRE_SYSCALL(fchmod)(long fd, long mode) {}
1197
1198POST_SYSCALL(fchmod)(long res, long fd, long mode) {}
1199
1200PRE_SYSCALL(fcntl)(long fd, long cmd, long arg) {}
1201
1202POST_SYSCALL(fcntl)(long res, long fd, long cmd, long arg) {}
1203
1204PRE_SYSCALL(fcntl64)(long fd, long cmd, long arg) {}
1205
1206POST_SYSCALL(fcntl64)(long res, long fd, long cmd, long arg) {}
1207
1208PRE_SYSCALL(pipe)(void *fildes) {}
1209
1210POST_SYSCALL(pipe)(long res, void *fildes) {
1211  if (res >= 0) {
1212    if (fildes) POST_WRITE(fildes, sizeof(int));
1213  }
1214}
1215
1216PRE_SYSCALL(pipe2)(void *fildes, long flags) {}
1217
1218POST_SYSCALL(pipe2)(long res, void *fildes, long flags) {
1219  if (res >= 0) {
1220    if (fildes) POST_WRITE(fildes, sizeof(int));
1221  }
1222}
1223
1224PRE_SYSCALL(dup)(long fildes) {}
1225
1226POST_SYSCALL(dup)(long res, long fildes) {}
1227
1228PRE_SYSCALL(dup2)(long oldfd, long newfd) {}
1229
1230POST_SYSCALL(dup2)(long res, long oldfd, long newfd) {}
1231
1232PRE_SYSCALL(dup3)(long oldfd, long newfd, long flags) {}
1233
1234POST_SYSCALL(dup3)(long res, long oldfd, long newfd, long flags) {}
1235
1236PRE_SYSCALL(ioperm)(long from, long num, long on) {}
1237
1238POST_SYSCALL(ioperm)(long res, long from, long num, long on) {}
1239
1240PRE_SYSCALL(ioctl)(long fd, long cmd, long arg) {}
1241
1242POST_SYSCALL(ioctl)(long res, long fd, long cmd, long arg) {}
1243
1244PRE_SYSCALL(flock)(long fd, long cmd) {}
1245
1246POST_SYSCALL(flock)(long res, long fd, long cmd) {}
1247
1248PRE_SYSCALL(io_setup)(long nr_reqs, void *ctx) {}
1249
1250POST_SYSCALL(io_setup)(long res, long nr_reqs, void *ctx) {
1251  if (res >= 0) {
1252    if (ctx) POST_WRITE(ctx, sizeof(long));
1253  }
1254}
1255
1256PRE_SYSCALL(io_destroy)(long ctx) {}
1257
1258POST_SYSCALL(io_destroy)(long res, long ctx) {}
1259
1260PRE_SYSCALL(io_getevents)(long ctx_id, long min_nr, long nr, void *events,
1261                          void *timeout) {
1262  if (timeout) PRE_READ(timeout, struct_timespec_sz);
1263}
1264
1265POST_SYSCALL(io_getevents)(long res, long ctx_id, long min_nr, long nr,
1266                           void *events, void *timeout) {
1267  if (res >= 0) {
1268    if (events) POST_WRITE(events, res * struct_io_event_sz);
1269    if (timeout) POST_WRITE(timeout, struct_timespec_sz);
1270  }
1271}
1272
1273PRE_SYSCALL(io_submit)(long ctx_id, long nr, __sanitizer_iocb **iocbpp) {
1274  for (long i = 0; i < nr; ++i) {
1275    if (iocbpp[i]->aio_lio_opcode == iocb_cmd_pwrite && iocbpp[i]->aio_buf &&
1276        iocbpp[i]->aio_nbytes)
1277      PRE_READ((void *)iocbpp[i]->aio_buf, iocbpp[i]->aio_nbytes);
1278  }
1279}
1280
1281POST_SYSCALL(io_submit)(long res, long ctx_id, long nr,
1282                        __sanitizer_iocb **iocbpp) {
1283  if (res > 0 && iocbpp) {
1284    for (long i = 0; i < res; ++i) {
1285      if (iocbpp[i]->aio_lio_opcode == iocb_cmd_pread && iocbpp[i]->aio_buf &&
1286          iocbpp[i]->aio_nbytes)
1287        POST_WRITE((void *)iocbpp[i]->aio_buf, iocbpp[i]->aio_nbytes);
1288    }
1289  }
1290}
1291
1292PRE_SYSCALL(io_cancel)(long ctx_id, void *iocb, void *result) {}
1293
1294POST_SYSCALL(io_cancel)(long res, long ctx_id, void *iocb, void *result) {
1295  if (res >= 0) {
1296    if (iocb) POST_WRITE(iocb, sizeof(__sanitizer_iocb));
1297    if (result) POST_WRITE(result, struct_io_event_sz);
1298  }
1299}
1300
1301PRE_SYSCALL(sendfile)(long out_fd, long in_fd, void *offset, long count) {}
1302
1303POST_SYSCALL(sendfile)(long res, long out_fd, long in_fd,
1304                       __sanitizer___kernel_off_t *offset, long count) {
1305  if (res >= 0) {
1306    if (offset) POST_WRITE(offset, sizeof(*offset));
1307  }
1308}
1309
1310PRE_SYSCALL(sendfile64)(long out_fd, long in_fd, void *offset, long count) {}
1311
1312POST_SYSCALL(sendfile64)(long res, long out_fd, long in_fd,
1313                         __sanitizer___kernel_loff_t *offset, long count) {
1314  if (res >= 0) {
1315    if (offset) POST_WRITE(offset, sizeof(*offset));
1316  }
1317}
1318
1319PRE_SYSCALL(readlink)(const void *path, void *buf, long bufsiz) {
1320  if (path)
1321    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
1322}
1323
1324POST_SYSCALL(readlink)(long res, const void *path, void *buf, long bufsiz) {
1325  if (res >= 0) {
1326    if (buf)
1327      POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
1328  }
1329}
1330
1331PRE_SYSCALL(creat)(const void *pathname, long mode) {
1332  if (pathname)
1333    PRE_READ(pathname,
1334             __sanitizer::internal_strlen((const char *)pathname) + 1);
1335}
1336
1337POST_SYSCALL(creat)(long res, const void *pathname, long mode) {}
1338
1339PRE_SYSCALL(open)(const void *filename, long flags, long mode) {
1340  if (filename)
1341    PRE_READ(filename,
1342             __sanitizer::internal_strlen((const char *)filename) + 1);
1343}
1344
1345POST_SYSCALL(open)(long res, const void *filename, long flags, long mode) {}
1346
1347PRE_SYSCALL(close)(long fd) {
1348  COMMON_SYSCALL_FD_CLOSE((int)fd);
1349}
1350
1351POST_SYSCALL(close)(long res, long fd) {}
1352
1353PRE_SYSCALL(access)(const void *filename, long mode) {
1354  if (filename)
1355    PRE_READ(filename,
1356             __sanitizer::internal_strlen((const char *)filename) + 1);
1357}
1358
1359POST_SYSCALL(access)(long res, const void *filename, long mode) {}
1360
1361PRE_SYSCALL(vhangup)() {}
1362
1363POST_SYSCALL(vhangup)(long res) {}
1364
1365PRE_SYSCALL(chown)(const void *filename, long user, long group) {
1366  if (filename)
1367    PRE_READ(filename,
1368             __sanitizer::internal_strlen((const char *)filename) + 1);
1369}
1370
1371POST_SYSCALL(chown)(long res, const void *filename, long user, long group) {}
1372
1373PRE_SYSCALL(lchown)(const void *filename, long user, long group) {
1374  if (filename)
1375    PRE_READ(filename,
1376             __sanitizer::internal_strlen((const char *)filename) + 1);
1377}
1378
1379POST_SYSCALL(lchown)(long res, const void *filename, long user, long group) {}
1380
1381PRE_SYSCALL(fchown)(long fd, long user, long group) {}
1382
1383POST_SYSCALL(fchown)(long res, long fd, long user, long group) {}
1384
1385PRE_SYSCALL(chown16)(const void *filename, long user, long group) {
1386  if (filename)
1387    PRE_READ(filename,
1388             __sanitizer::internal_strlen((const char *)filename) + 1);
1389}
1390
1391POST_SYSCALL(chown16)(long res, const void *filename, long user, long group) {}
1392
1393PRE_SYSCALL(lchown16)(const void *filename, long user, long group) {
1394  if (filename)
1395    PRE_READ(filename,
1396             __sanitizer::internal_strlen((const char *)filename) + 1);
1397}
1398
1399POST_SYSCALL(lchown16)(long res, const void *filename, long user, long group) {}
1400
1401PRE_SYSCALL(fchown16)(long fd, long user, long group) {}
1402
1403POST_SYSCALL(fchown16)(long res, long fd, long user, long group) {}
1404
1405PRE_SYSCALL(setregid16)(long rgid, long egid) {}
1406
1407POST_SYSCALL(setregid16)(long res, long rgid, long egid) {}
1408
1409PRE_SYSCALL(setgid16)(long gid) {}
1410
1411POST_SYSCALL(setgid16)(long res, long gid) {}
1412
1413PRE_SYSCALL(setreuid16)(long ruid, long euid) {}
1414
1415POST_SYSCALL(setreuid16)(long res, long ruid, long euid) {}
1416
1417PRE_SYSCALL(setuid16)(long uid) {}
1418
1419POST_SYSCALL(setuid16)(long res, long uid) {}
1420
1421PRE_SYSCALL(setresuid16)(long ruid, long euid, long suid) {}
1422
1423POST_SYSCALL(setresuid16)(long res, long ruid, long euid, long suid) {}
1424
1425PRE_SYSCALL(getresuid16)(void *ruid, void *euid, void *suid) {}
1426
1427POST_SYSCALL(getresuid16)(long res, __sanitizer___kernel_old_uid_t *ruid,
1428                          __sanitizer___kernel_old_uid_t *euid,
1429                          __sanitizer___kernel_old_uid_t *suid) {
1430  if (res >= 0) {
1431    if (ruid) POST_WRITE(ruid, sizeof(*ruid));
1432    if (euid) POST_WRITE(euid, sizeof(*euid));
1433    if (suid) POST_WRITE(suid, sizeof(*suid));
1434  }
1435}
1436
1437PRE_SYSCALL(setresgid16)(long rgid, long egid, long sgid) {}
1438
1439POST_SYSCALL(setresgid16)(long res, long rgid, long egid, long sgid) {}
1440
1441PRE_SYSCALL(getresgid16)(void *rgid, void *egid, void *sgid) {}
1442
1443POST_SYSCALL(getresgid16)(long res, __sanitizer___kernel_old_gid_t *rgid,
1444                          __sanitizer___kernel_old_gid_t *egid,
1445                          __sanitizer___kernel_old_gid_t *sgid) {
1446  if (res >= 0) {
1447    if (rgid) POST_WRITE(rgid, sizeof(*rgid));
1448    if (egid) POST_WRITE(egid, sizeof(*egid));
1449    if (sgid) POST_WRITE(sgid, sizeof(*sgid));
1450  }
1451}
1452
1453PRE_SYSCALL(setfsuid16)(long uid) {}
1454
1455POST_SYSCALL(setfsuid16)(long res, long uid) {}
1456
1457PRE_SYSCALL(setfsgid16)(long gid) {}
1458
1459POST_SYSCALL(setfsgid16)(long res, long gid) {}
1460
1461PRE_SYSCALL(getgroups16)(long gidsetsize,
1462                         __sanitizer___kernel_old_gid_t *grouplist) {}
1463
1464POST_SYSCALL(getgroups16)(long res, long gidsetsize,
1465                          __sanitizer___kernel_old_gid_t *grouplist) {
1466  if (res >= 0) {
1467    if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist));
1468  }
1469}
1470
1471PRE_SYSCALL(setgroups16)(long gidsetsize,
1472                         __sanitizer___kernel_old_gid_t *grouplist) {
1473  if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
1474}
1475
1476POST_SYSCALL(setgroups16)(long res, long gidsetsize,
1477                          __sanitizer___kernel_old_gid_t *grouplist) {}
1478
1479PRE_SYSCALL(getuid16)() {}
1480
1481POST_SYSCALL(getuid16)(long res) {}
1482
1483PRE_SYSCALL(geteuid16)() {}
1484
1485POST_SYSCALL(geteuid16)(long res) {}
1486
1487PRE_SYSCALL(getgid16)() {}
1488
1489POST_SYSCALL(getgid16)(long res) {}
1490
1491PRE_SYSCALL(getegid16)() {}
1492
1493POST_SYSCALL(getegid16)(long res) {}
1494
1495PRE_SYSCALL(utime)(void *filename, void *times) {}
1496
1497POST_SYSCALL(utime)(long res, void *filename, void *times) {
1498  if (res >= 0) {
1499    if (filename)
1500      POST_WRITE(filename,
1501                 __sanitizer::internal_strlen((const char *)filename) + 1);
1502    if (times) POST_WRITE(times, struct_utimbuf_sz);
1503  }
1504}
1505
1506PRE_SYSCALL(utimes)(void *filename, void *utimes) {}
1507
1508POST_SYSCALL(utimes)(long res, void *filename, void *utimes) {
1509  if (res >= 0) {
1510    if (filename)
1511      POST_WRITE(filename,
1512                 __sanitizer::internal_strlen((const char *)filename) + 1);
1513    if (utimes) POST_WRITE(utimes, timeval_sz);
1514  }
1515}
1516
1517PRE_SYSCALL(lseek)(long fd, long offset, long origin) {}
1518
1519POST_SYSCALL(lseek)(long res, long fd, long offset, long origin) {}
1520
1521PRE_SYSCALL(llseek)(long fd, long offset_high, long offset_low, void *result,
1522                    long origin) {}
1523
1524POST_SYSCALL(llseek)(long res, long fd, long offset_high, long offset_low,
1525                     void *result, long origin) {
1526  if (res >= 0) {
1527    if (result) POST_WRITE(result, sizeof(long long));
1528  }
1529}
1530
1531PRE_SYSCALL(readv)(long fd, const __sanitizer_iovec *vec, long vlen) {}
1532
1533POST_SYSCALL(readv)(long res, long fd, const __sanitizer_iovec *vec,
1534                    long vlen) {
1535  if (res >= 0) {
1536    if (vec) kernel_write_iovec(vec, vlen, res);
1537  }
1538}
1539
1540PRE_SYSCALL(write)(long fd, const void *buf, long count) {
1541  if (buf) PRE_READ(buf, count);
1542}
1543
1544POST_SYSCALL(write)(long res, long fd, const void *buf, long count) {}
1545
1546PRE_SYSCALL(writev)(long fd, const __sanitizer_iovec *vec, long vlen) {}
1547
1548POST_SYSCALL(writev)(long res, long fd, const __sanitizer_iovec *vec,
1549                     long vlen) {
1550  if (res >= 0) {
1551    if (vec) kernel_read_iovec(vec, vlen, res);
1552  }
1553}
1554
1555#ifdef _LP64
1556PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos) {}
1557
1558POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos) {
1559  if (res >= 0) {
1560    if (buf) POST_WRITE(buf, res);
1561  }
1562}
1563
1564PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos) {
1565  if (buf) PRE_READ(buf, count);
1566}
1567
1568POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count,
1569                       long pos) {}
1570#else
1571PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos0, long pos1) {}
1572
1573POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos0,
1574                      long pos1) {
1575  if (res >= 0) {
1576    if (buf) POST_WRITE(buf, res);
1577  }
1578}
1579
1580PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos0,
1581                      long pos1) {
1582  if (buf) PRE_READ(buf, count);
1583}
1584
1585POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count,
1586                       long pos0, long pos1) {}
1587#endif
1588
1589PRE_SYSCALL(preadv)(long fd, const __sanitizer_iovec *vec, long vlen,
1590                    long pos_l, long pos_h) {}
1591
1592POST_SYSCALL(preadv)(long res, long fd, const __sanitizer_iovec *vec, long vlen,
1593                     long pos_l, long pos_h) {
1594  if (res >= 0) {
1595    if (vec) kernel_write_iovec(vec, vlen, res);
1596  }
1597}
1598
1599PRE_SYSCALL(pwritev)(long fd, const __sanitizer_iovec *vec, long vlen,
1600                     long pos_l, long pos_h) {}
1601
1602POST_SYSCALL(pwritev)(long res, long fd, const __sanitizer_iovec *vec,
1603                      long vlen, long pos_l, long pos_h) {
1604  if (res >= 0) {
1605    if (vec) kernel_read_iovec(vec, vlen, res);
1606  }
1607}
1608
1609PRE_SYSCALL(getcwd)(void *buf, long size) {}
1610
1611POST_SYSCALL(getcwd)(long res, void *buf, long size) {
1612  if (res >= 0) {
1613    if (buf)
1614      POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
1615  }
1616}
1617
1618PRE_SYSCALL(mkdir)(const void *pathname, long mode) {
1619  if (pathname)
1620    PRE_READ(pathname,
1621             __sanitizer::internal_strlen((const char *)pathname) + 1);
1622}
1623
1624POST_SYSCALL(mkdir)(long res, const void *pathname, long mode) {}
1625
1626PRE_SYSCALL(chdir)(const void *filename) {
1627  if (filename)
1628    PRE_READ(filename,
1629             __sanitizer::internal_strlen((const char *)filename) + 1);
1630}
1631
1632POST_SYSCALL(chdir)(long res, const void *filename) {}
1633
1634PRE_SYSCALL(fchdir)(long fd) {}
1635
1636POST_SYSCALL(fchdir)(long res, long fd) {}
1637
1638PRE_SYSCALL(rmdir)(const void *pathname) {
1639  if (pathname)
1640    PRE_READ(pathname,
1641             __sanitizer::internal_strlen((const char *)pathname) + 1);
1642}
1643
1644POST_SYSCALL(rmdir)(long res, const void *pathname) {}
1645
1646PRE_SYSCALL(lookup_dcookie)(u64 cookie64, void *buf, long len) {}
1647
1648POST_SYSCALL(lookup_dcookie)(long res, u64 cookie64, void *buf, long len) {
1649  if (res >= 0) {
1650    if (buf)
1651      POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
1652  }
1653}
1654
1655PRE_SYSCALL(quotactl)(long cmd, const void *special, long id, void *addr) {
1656  if (special)
1657    PRE_READ(special, __sanitizer::internal_strlen((const char *)special) + 1);
1658}
1659
1660POST_SYSCALL(quotactl)(long res, long cmd, const void *special, long id,
1661                       void *addr) {}
1662
1663PRE_SYSCALL(getdents)(long fd, void *dirent, long count) {}
1664
1665POST_SYSCALL(getdents)(long res, long fd, void *dirent, long count) {
1666  if (res >= 0) {
1667    if (dirent) POST_WRITE(dirent, res);
1668  }
1669}
1670
1671PRE_SYSCALL(getdents64)(long fd, void *dirent, long count) {}
1672
1673POST_SYSCALL(getdents64)(long res, long fd, void *dirent, long count) {
1674  if (res >= 0) {
1675    if (dirent) POST_WRITE(dirent, res);
1676  }
1677}
1678
1679PRE_SYSCALL(setsockopt)(long fd, long level, long optname, void *optval,
1680                        long optlen) {}
1681
1682POST_SYSCALL(setsockopt)(long res, long fd, long level, long optname,
1683                         void *optval, long optlen) {
1684  if (res >= 0) {
1685    if (optval)
1686      POST_WRITE(optval,
1687                 __sanitizer::internal_strlen((const char *)optval) + 1);
1688  }
1689}
1690
1691PRE_SYSCALL(getsockopt)(long fd, long level, long optname, void *optval,
1692                        void *optlen) {}
1693
1694POST_SYSCALL(getsockopt)(long res, long fd, long level, long optname,
1695                         void *optval, void *optlen) {
1696  if (res >= 0) {
1697    if (optval)
1698      POST_WRITE(optval,
1699                 __sanitizer::internal_strlen((const char *)optval) + 1);
1700    if (optlen) POST_WRITE(optlen, sizeof(int));
1701  }
1702}
1703
1704PRE_SYSCALL(bind)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
1705
1706POST_SYSCALL(bind)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
1707                   long arg2) {
1708  if (res >= 0) {
1709    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
1710  }
1711}
1712
1713PRE_SYSCALL(connect)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
1714
1715POST_SYSCALL(connect)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
1716                      long arg2) {
1717  if (res >= 0) {
1718    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
1719  }
1720}
1721
1722PRE_SYSCALL(accept)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {}
1723
1724POST_SYSCALL(accept)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
1725                     void *arg2) {
1726  if (res >= 0) {
1727    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
1728    if (arg2) POST_WRITE(arg2, sizeof(unsigned));
1729  }
1730}
1731
1732PRE_SYSCALL(accept4)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2,
1733                     long arg3) {}
1734
1735POST_SYSCALL(accept4)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
1736                      void *arg2, long arg3) {
1737  if (res >= 0) {
1738    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
1739    if (arg2) POST_WRITE(arg2, sizeof(unsigned));
1740  }
1741}
1742
1743PRE_SYSCALL(getsockname)(long arg0, sanitizer_kernel_sockaddr *arg1,
1744                         void *arg2) {}
1745
1746POST_SYSCALL(getsockname)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
1747                          void *arg2) {
1748  if (res >= 0) {
1749    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
1750    if (arg2) POST_WRITE(arg2, sizeof(unsigned));
1751  }
1752}
1753
1754PRE_SYSCALL(getpeername)(long arg0, sanitizer_kernel_sockaddr *arg1,
1755                         void *arg2) {}
1756
1757POST_SYSCALL(getpeername)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
1758                          void *arg2) {
1759  if (res >= 0) {
1760    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
1761    if (arg2) POST_WRITE(arg2, sizeof(unsigned));
1762  }
1763}
1764
1765PRE_SYSCALL(send)(long arg0, void *arg1, long arg2, long arg3) {}
1766
1767POST_SYSCALL(send)(long res, long arg0, void *arg1, long arg2, long arg3) {
1768  if (res) {
1769    if (arg1) POST_READ(arg1, res);
1770  }
1771}
1772
1773PRE_SYSCALL(sendto)(long arg0, void *arg1, long arg2, long arg3,
1774                    sanitizer_kernel_sockaddr *arg4, long arg5) {}
1775
1776POST_SYSCALL(sendto)(long res, long arg0, void *arg1, long arg2, long arg3,
1777                     sanitizer_kernel_sockaddr *arg4, long arg5) {
1778  if (res >= 0) {
1779    if (arg1) POST_READ(arg1, res);
1780    if (arg4) POST_WRITE(arg4, sizeof(*arg4));
1781  }
1782}
1783
1784PRE_SYSCALL(sendmsg)(long fd, void *msg, long flags) {}
1785
1786POST_SYSCALL(sendmsg)(long res, long fd, void *msg, long flags) {
1787  // FIXME: POST_READ
1788}
1789
1790PRE_SYSCALL(sendmmsg)(long fd, void *msg, long vlen, long flags) {}
1791
1792POST_SYSCALL(sendmmsg)(long res, long fd, void *msg, long vlen, long flags) {
1793  // FIXME: POST_READ
1794}
1795
1796PRE_SYSCALL(recv)(long arg0, void *buf, long len, long flags) {}
1797
1798POST_SYSCALL(recv)(long res, void *buf, long len, long flags) {
1799  if (res >= 0) {
1800    if (buf) POST_WRITE(buf, res);
1801  }
1802}
1803
1804PRE_SYSCALL(recvfrom)(long arg0, void *buf, long len, long flags,
1805                      sanitizer_kernel_sockaddr *arg4, void *arg5) {}
1806
1807POST_SYSCALL(recvfrom)(long res, long arg0, void *buf, long len, long flags,
1808                       sanitizer_kernel_sockaddr *arg4, void *arg5) {
1809  if (res >= 0) {
1810    if (buf) POST_WRITE(buf, res);
1811    if (arg4) POST_WRITE(arg4, sizeof(*arg4));
1812    if (arg5) POST_WRITE(arg5, sizeof(int));
1813  }
1814}
1815
1816PRE_SYSCALL(socket)(long arg0, long arg1, long arg2) {}
1817
1818POST_SYSCALL(socket)(long res, long arg0, long arg1, long arg2) {}
1819
1820PRE_SYSCALL(socketpair)(long arg0, long arg1, long arg2, void *arg3) {}
1821
1822POST_SYSCALL(socketpair)(long res, long arg0, long arg1, long arg2,
1823                         void *arg3) {
1824  if (res >= 0) {
1825    if (arg3) POST_WRITE(arg3, sizeof(int));
1826  }
1827}
1828
1829PRE_SYSCALL(socketcall)(long call, void *args) {}
1830
1831POST_SYSCALL(socketcall)(long res, long call, void *args) {
1832  if (res >= 0) {
1833    if (args) POST_WRITE(args, sizeof(long));
1834  }
1835}
1836
1837PRE_SYSCALL(listen)(long arg0, long arg1) {}
1838
1839POST_SYSCALL(listen)(long res, long arg0, long arg1) {}
1840
1841PRE_SYSCALL(poll)(void *ufds, long nfds, long timeout) {}
1842
1843POST_SYSCALL(poll)(long res, __sanitizer_pollfd *ufds, long nfds,
1844                   long timeout) {
1845  if (res >= 0) {
1846    if (ufds) POST_WRITE(ufds, nfds * sizeof(*ufds));
1847  }
1848}
1849
1850PRE_SYSCALL(select)(long n, __sanitizer___kernel_fd_set *inp,
1851                    __sanitizer___kernel_fd_set *outp,
1852                    __sanitizer___kernel_fd_set *exp, void *tvp) {}
1853
1854POST_SYSCALL(select)(long res, long n, __sanitizer___kernel_fd_set *inp,
1855                     __sanitizer___kernel_fd_set *outp,
1856                     __sanitizer___kernel_fd_set *exp, void *tvp) {
1857  if (res >= 0) {
1858    if (inp) POST_WRITE(inp, sizeof(*inp));
1859    if (outp) POST_WRITE(outp, sizeof(*outp));
1860    if (exp) POST_WRITE(exp, sizeof(*exp));
1861    if (tvp) POST_WRITE(tvp, timeval_sz);
1862  }
1863}
1864
1865PRE_SYSCALL(old_select)(void *arg) {}
1866
1867POST_SYSCALL(old_select)(long res, void *arg) {}
1868
1869PRE_SYSCALL(epoll_create)(long size) {}
1870
1871POST_SYSCALL(epoll_create)(long res, long size) {}
1872
1873PRE_SYSCALL(epoll_create1)(long flags) {}
1874
1875POST_SYSCALL(epoll_create1)(long res, long flags) {}
1876
1877PRE_SYSCALL(epoll_ctl)(long epfd, long op, long fd, void *event) {}
1878
1879POST_SYSCALL(epoll_ctl)(long res, long epfd, long op, long fd, void *event) {
1880  if (res >= 0) {
1881    if (event) POST_WRITE(event, struct_epoll_event_sz);
1882  }
1883}
1884
1885PRE_SYSCALL(epoll_wait)(long epfd, void *events, long maxevents, long timeout) {
1886}
1887
1888POST_SYSCALL(epoll_wait)(long res, long epfd, void *events, long maxevents,
1889                         long timeout) {
1890  if (res >= 0) {
1891    if (events) POST_WRITE(events, struct_epoll_event_sz);
1892  }
1893}
1894
1895PRE_SYSCALL(epoll_pwait)(long epfd, void *events, long maxevents, long timeout,
1896                         const kernel_sigset_t *sigmask, long sigsetsize) {
1897  if (sigmask) PRE_READ(sigmask, sigsetsize);
1898}
1899
1900POST_SYSCALL(epoll_pwait)(long res, long epfd, void *events, long maxevents,
1901                          long timeout, const void *sigmask, long sigsetsize) {
1902  if (res >= 0) {
1903    if (events) POST_WRITE(events, struct_epoll_event_sz);
1904  }
1905}
1906
1907PRE_SYSCALL(gethostname)(void *name, long len) {}
1908
1909POST_SYSCALL(gethostname)(long res, void *name, long len) {
1910  if (res >= 0) {
1911    if (name)
1912      POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
1913  }
1914}
1915
1916PRE_SYSCALL(sethostname)(void *name, long len) {}
1917
1918POST_SYSCALL(sethostname)(long res, void *name, long len) {
1919  if (res >= 0) {
1920    if (name)
1921      POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
1922  }
1923}
1924
1925PRE_SYSCALL(setdomainname)(void *name, long len) {}
1926
1927POST_SYSCALL(setdomainname)(long res, void *name, long len) {
1928  if (res >= 0) {
1929    if (name)
1930      POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
1931  }
1932}
1933
1934PRE_SYSCALL(newuname)(void *name) {}
1935
1936POST_SYSCALL(newuname)(long res, void *name) {
1937  if (res >= 0) {
1938    if (name) POST_WRITE(name, struct_new_utsname_sz);
1939  }
1940}
1941
1942PRE_SYSCALL(uname)(void *arg0) {}
1943
1944POST_SYSCALL(uname)(long res, void *arg0) {
1945  if (res >= 0) {
1946    if (arg0) POST_WRITE(arg0, struct_old_utsname_sz);
1947  }
1948}
1949
1950PRE_SYSCALL(olduname)(void *arg0) {}
1951
1952POST_SYSCALL(olduname)(long res, void *arg0) {
1953  if (res >= 0) {
1954    if (arg0) POST_WRITE(arg0, struct_oldold_utsname_sz);
1955  }
1956}
1957
1958PRE_SYSCALL(getrlimit)(long resource, void *rlim) {}
1959
1960POST_SYSCALL(getrlimit)(long res, long resource, void *rlim) {
1961  if (res >= 0) {
1962    if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
1963  }
1964}
1965
1966PRE_SYSCALL(old_getrlimit)(long resource, void *rlim) {}
1967
1968POST_SYSCALL(old_getrlimit)(long res, long resource, void *rlim) {
1969  if (res >= 0) {
1970    if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
1971  }
1972}
1973
1974PRE_SYSCALL(setrlimit)(long resource, void *rlim) {}
1975
1976POST_SYSCALL(setrlimit)(long res, long resource, void *rlim) {
1977  if (res >= 0) {
1978    if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
1979  }
1980}
1981
1982#if !SANITIZER_ANDROID
1983PRE_SYSCALL(prlimit64)(long pid, long resource, const void *new_rlim,
1984                       void *old_rlim) {
1985  if (new_rlim) PRE_READ(new_rlim, struct_rlimit64_sz);
1986}
1987
1988POST_SYSCALL(prlimit64)(long res, long pid, long resource, const void *new_rlim,
1989                        void *old_rlim) {
1990  if (res >= 0) {
1991    if (old_rlim) POST_WRITE(old_rlim, struct_rlimit64_sz);
1992  }
1993}
1994#endif
1995
1996PRE_SYSCALL(getrusage)(long who, void *ru) {}
1997
1998POST_SYSCALL(getrusage)(long res, long who, void *ru) {
1999  if (res >= 0) {
2000    if (ru) POST_WRITE(ru, struct_rusage_sz);
2001  }
2002}
2003
2004PRE_SYSCALL(umask)(long mask) {}
2005
2006POST_SYSCALL(umask)(long res, long mask) {}
2007
2008PRE_SYSCALL(msgget)(long key, long msgflg) {}
2009
2010POST_SYSCALL(msgget)(long res, long key, long msgflg) {}
2011
2012PRE_SYSCALL(msgsnd)(long msqid, void *msgp, long msgsz, long msgflg) {
2013  if (msgp) PRE_READ(msgp, msgsz);
2014}
2015
2016POST_SYSCALL(msgsnd)(long res, long msqid, void *msgp, long msgsz,
2017                     long msgflg) {}
2018
2019PRE_SYSCALL(msgrcv)(long msqid, void *msgp, long msgsz, long msgtyp,
2020                    long msgflg) {}
2021
2022POST_SYSCALL(msgrcv)(long res, long msqid, void *msgp, long msgsz, long msgtyp,
2023                     long msgflg) {
2024  if (res >= 0) {
2025    if (msgp) POST_WRITE(msgp, res);
2026  }
2027}
2028
2029PRE_SYSCALL(msgctl)(long msqid, long cmd, void *buf) {}
2030
2031POST_SYSCALL(msgctl)(long res, long msqid, long cmd, void *buf) {
2032  if (res >= 0) {
2033    if (buf) POST_WRITE(buf, struct_msqid_ds_sz);
2034  }
2035}
2036
2037PRE_SYSCALL(semget)(long key, long nsems, long semflg) {}
2038
2039POST_SYSCALL(semget)(long res, long key, long nsems, long semflg) {}
2040
2041PRE_SYSCALL(semop)(long semid, void *sops, long nsops) {}
2042
2043POST_SYSCALL(semop)(long res, long semid, void *sops, long nsops) {}
2044
2045PRE_SYSCALL(semctl)(long semid, long semnum, long cmd, void *arg) {}
2046
2047POST_SYSCALL(semctl)(long res, long semid, long semnum, long cmd, void *arg) {}
2048
2049PRE_SYSCALL(semtimedop)(long semid, void *sops, long nsops,
2050                        const void *timeout) {
2051  if (timeout) PRE_READ(timeout, struct_timespec_sz);
2052}
2053
2054POST_SYSCALL(semtimedop)(long res, long semid, void *sops, long nsops,
2055                         const void *timeout) {}
2056
2057PRE_SYSCALL(shmat)(long shmid, void *shmaddr, long shmflg) {}
2058
2059POST_SYSCALL(shmat)(long res, long shmid, void *shmaddr, long shmflg) {
2060  if (res >= 0) {
2061    if (shmaddr)
2062      POST_WRITE(shmaddr,
2063                 __sanitizer::internal_strlen((const char *)shmaddr) + 1);
2064  }
2065}
2066
2067PRE_SYSCALL(shmget)(long key, long size, long flag) {}
2068
2069POST_SYSCALL(shmget)(long res, long key, long size, long flag) {}
2070
2071PRE_SYSCALL(shmdt)(void *shmaddr) {}
2072
2073POST_SYSCALL(shmdt)(long res, void *shmaddr) {
2074  if (res >= 0) {
2075    if (shmaddr)
2076      POST_WRITE(shmaddr,
2077                 __sanitizer::internal_strlen((const char *)shmaddr) + 1);
2078  }
2079}
2080
2081PRE_SYSCALL(ipc)(long call, long first, long second, long third, void *ptr,
2082                 long fifth) {}
2083
2084POST_SYSCALL(ipc)(long res, long call, long first, long second, long third,
2085                  void *ptr, long fifth) {}
2086
2087#if !SANITIZER_ANDROID
2088PRE_SYSCALL(shmctl)(long shmid, long cmd, void *buf) {}
2089
2090POST_SYSCALL(shmctl)(long res, long shmid, long cmd, void *buf) {
2091  if (res >= 0) {
2092    if (buf) POST_WRITE(buf, sizeof(__sanitizer_shmid_ds));
2093  }
2094}
2095
2096PRE_SYSCALL(mq_open)(const void *name, long oflag, long mode, void *attr) {
2097  if (name)
2098    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
2099}
2100
2101POST_SYSCALL(mq_open)(long res, const void *name, long oflag, long mode,
2102                      void *attr) {
2103  if (res >= 0) {
2104    if (attr) POST_WRITE(attr, struct_mq_attr_sz);
2105  }
2106}
2107
2108PRE_SYSCALL(mq_unlink)(const void *name) {
2109  if (name)
2110    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
2111}
2112
2113POST_SYSCALL(mq_unlink)(long res, const void *name) {}
2114
2115PRE_SYSCALL(mq_timedsend)(long mqdes, const void *msg_ptr, long msg_len,
2116                          long msg_prio, const void *abs_timeout) {
2117  if (msg_ptr) PRE_READ(msg_ptr, msg_len);
2118  if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz);
2119}
2120
2121POST_SYSCALL(mq_timedsend)(long res, long mqdes, const void *msg_ptr,
2122                           long msg_len, long msg_prio,
2123                           const void *abs_timeout) {}
2124
2125PRE_SYSCALL(mq_timedreceive)(long mqdes, void *msg_ptr, long msg_len,
2126                             void *msg_prio, const void *abs_timeout) {
2127  if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz);
2128}
2129
2130POST_SYSCALL(mq_timedreceive)(long res, long mqdes, void *msg_ptr, long msg_len,
2131                              int *msg_prio, const void *abs_timeout) {
2132  if (res >= 0) {
2133    if (msg_ptr) POST_WRITE(msg_ptr, res);
2134    if (msg_prio) POST_WRITE(msg_prio, sizeof(*msg_prio));
2135  }
2136}
2137
2138PRE_SYSCALL(mq_notify)(long mqdes, const void *notification) {
2139  if (notification) PRE_READ(notification, struct_sigevent_sz);
2140}
2141
2142POST_SYSCALL(mq_notify)(long res, long mqdes, const void *notification) {}
2143
2144PRE_SYSCALL(mq_getsetattr)(long mqdes, const void *mqstat, void *omqstat) {
2145  if (mqstat) PRE_READ(mqstat, struct_mq_attr_sz);
2146}
2147
2148POST_SYSCALL(mq_getsetattr)(long res, long mqdes, const void *mqstat,
2149                            void *omqstat) {
2150  if (res >= 0) {
2151    if (omqstat) POST_WRITE(omqstat, struct_mq_attr_sz);
2152  }
2153}
2154#endif  // SANITIZER_ANDROID
2155
2156PRE_SYSCALL(pciconfig_iobase)(long which, long bus, long devfn) {}
2157
2158POST_SYSCALL(pciconfig_iobase)(long res, long which, long bus, long devfn) {}
2159
2160PRE_SYSCALL(pciconfig_read)(long bus, long dfn, long off, long len, void *buf) {
2161}
2162
2163POST_SYSCALL(pciconfig_read)(long res, long bus, long dfn, long off, long len,
2164                             void *buf) {}
2165
2166PRE_SYSCALL(pciconfig_write)(long bus, long dfn, long off, long len,
2167                             void *buf) {}
2168
2169POST_SYSCALL(pciconfig_write)(long res, long bus, long dfn, long off, long len,
2170                              void *buf) {}
2171
2172PRE_SYSCALL(swapon)(const void *specialfile, long swap_flags) {
2173  if (specialfile)
2174    PRE_READ(specialfile,
2175             __sanitizer::internal_strlen((const char *)specialfile) + 1);
2176}
2177
2178POST_SYSCALL(swapon)(long res, const void *specialfile, long swap_flags) {}
2179
2180PRE_SYSCALL(swapoff)(const void *specialfile) {
2181  if (specialfile)
2182    PRE_READ(specialfile,
2183             __sanitizer::internal_strlen((const char *)specialfile) + 1);
2184}
2185
2186POST_SYSCALL(swapoff)(long res, const void *specialfile) {}
2187
2188PRE_SYSCALL(sysctl)(__sanitizer___sysctl_args *args) {
2189  if (args) {
2190    if (args->name) PRE_READ(args->name, args->nlen * sizeof(*args->name));
2191    if (args->newval) PRE_READ(args->name, args->newlen);
2192  }
2193}
2194
2195POST_SYSCALL(sysctl)(long res, __sanitizer___sysctl_args *args) {
2196  if (res >= 0) {
2197    if (args && args->oldval && args->oldlenp) {
2198      POST_WRITE(args->oldlenp, sizeof(*args->oldlenp));
2199      POST_WRITE(args->oldval, *args->oldlenp);
2200    }
2201  }
2202}
2203
2204PRE_SYSCALL(sysinfo)(void *info) {}
2205
2206POST_SYSCALL(sysinfo)(long res, void *info) {
2207  if (res >= 0) {
2208    if (info) POST_WRITE(info, struct_sysinfo_sz);
2209  }
2210}
2211
2212PRE_SYSCALL(sysfs)(long option, long arg1, long arg2) {}
2213
2214POST_SYSCALL(sysfs)(long res, long option, long arg1, long arg2) {}
2215
2216PRE_SYSCALL(syslog)(long type, void *buf, long len) {}
2217
2218POST_SYSCALL(syslog)(long res, long type, void *buf, long len) {
2219  if (res >= 0) {
2220    if (buf)
2221      POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
2222  }
2223}
2224
2225PRE_SYSCALL(uselib)(const void *library) {
2226  if (library)
2227    PRE_READ(library, __sanitizer::internal_strlen((const char *)library) + 1);
2228}
2229
2230POST_SYSCALL(uselib)(long res, const void *library) {}
2231
2232PRE_SYSCALL(ni_syscall)() {}
2233
2234POST_SYSCALL(ni_syscall)(long res) {}
2235
2236PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
2237#if defined(__i386) || defined (__x86_64)
2238  if (data) {
2239    if (request == ptrace_setregs) {
2240      PRE_READ((void *)data, struct_user_regs_struct_sz);
2241    } else if (request == ptrace_setfpregs) {
2242      PRE_READ((void *)data, struct_user_fpregs_struct_sz);
2243    } else if (request == ptrace_setfpxregs) {
2244      PRE_READ((void *)data, struct_user_fpxregs_struct_sz);
2245    } else if (request == ptrace_setsiginfo) {
2246      PRE_READ((void *)data, siginfo_t_sz);
2247    } else if (request == ptrace_setregset) {
2248      __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
2249      PRE_READ(iov->iov_base, iov->iov_len);
2250    }
2251  }
2252#endif
2253}
2254
2255POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) {
2256#if defined(__i386) || defined (__x86_64)
2257  if (res >= 0 && data) {
2258    // Note that this is different from the interceptor in
2259    // sanitizer_common_interceptors.inc.
2260    // PEEK* requests return resulting values through data pointer.
2261    if (request == ptrace_getregs) {
2262      POST_WRITE((void *)data, struct_user_regs_struct_sz);
2263    } else if (request == ptrace_getfpregs) {
2264      POST_WRITE((void *)data, struct_user_fpregs_struct_sz);
2265    } else if (request == ptrace_getfpxregs) {
2266      POST_WRITE((void *)data, struct_user_fpxregs_struct_sz);
2267    } else if (request == ptrace_getsiginfo) {
2268      POST_WRITE((void *)data, siginfo_t_sz);
2269    } else if (request == ptrace_getregset) {
2270      __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
2271      POST_WRITE(iov->iov_base, iov->iov_len);
2272    } else if (request == ptrace_peekdata || request == ptrace_peektext ||
2273               request == ptrace_peekuser) {
2274      POST_WRITE((void *)data, sizeof(void *));
2275    }
2276  }
2277#endif
2278}
2279
2280PRE_SYSCALL(add_key)(const void *_type, const void *_description,
2281                     const void *_payload, long plen, long destringid) {
2282  if (_type)
2283    PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1);
2284  if (_description)
2285    PRE_READ(_description,
2286             __sanitizer::internal_strlen((const char *)_description) + 1);
2287}
2288
2289POST_SYSCALL(add_key)(long res, const void *_type, const void *_description,
2290                      const void *_payload, long plen, long destringid) {}
2291
2292PRE_SYSCALL(request_key)(const void *_type, const void *_description,
2293                         const void *_callout_info, long destringid) {
2294  if (_type)
2295    PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1);
2296  if (_description)
2297    PRE_READ(_description,
2298             __sanitizer::internal_strlen((const char *)_description) + 1);
2299  if (_callout_info)
2300    PRE_READ(_callout_info,
2301             __sanitizer::internal_strlen((const char *)_callout_info) + 1);
2302}
2303
2304POST_SYSCALL(request_key)(long res, const void *_type, const void *_description,
2305                          const void *_callout_info, long destringid) {}
2306
2307PRE_SYSCALL(keyctl)(long cmd, long arg2, long arg3, long arg4, long arg5) {}
2308
2309POST_SYSCALL(keyctl)(long res, long cmd, long arg2, long arg3, long arg4,
2310                     long arg5) {}
2311
2312PRE_SYSCALL(ioprio_set)(long which, long who, long ioprio) {}
2313
2314POST_SYSCALL(ioprio_set)(long res, long which, long who, long ioprio) {}
2315
2316PRE_SYSCALL(ioprio_get)(long which, long who) {}
2317
2318POST_SYSCALL(ioprio_get)(long res, long which, long who) {}
2319
2320PRE_SYSCALL(set_mempolicy)(long mode, void *nmask, long maxnode) {}
2321
2322POST_SYSCALL(set_mempolicy)(long res, long mode, void *nmask, long maxnode) {
2323  if (res >= 0) {
2324    if (nmask) POST_WRITE(nmask, sizeof(long));
2325  }
2326}
2327
2328PRE_SYSCALL(migrate_pages)(long pid, long maxnode, const void *from,
2329                           const void *to) {
2330  if (from) PRE_READ(from, sizeof(long));
2331  if (to) PRE_READ(to, sizeof(long));
2332}
2333
2334POST_SYSCALL(migrate_pages)(long res, long pid, long maxnode, const void *from,
2335                            const void *to) {}
2336
2337PRE_SYSCALL(move_pages)(long pid, long nr_pages, const void **pages,
2338                        const int *nodes, int *status, long flags) {
2339  if (pages) PRE_READ(pages, nr_pages * sizeof(*pages));
2340  if (nodes) PRE_READ(nodes, nr_pages * sizeof(*nodes));
2341}
2342
2343POST_SYSCALL(move_pages)(long res, long pid, long nr_pages, const void **pages,
2344                         const int *nodes, int *status, long flags) {
2345  if (res >= 0) {
2346    if (status) POST_WRITE(status, nr_pages * sizeof(*status));
2347  }
2348}
2349
2350PRE_SYSCALL(mbind)(long start, long len, long mode, void *nmask, long maxnode,
2351                   long flags) {}
2352
2353POST_SYSCALL(mbind)(long res, long start, long len, long mode, void *nmask,
2354                    long maxnode, long flags) {
2355  if (res >= 0) {
2356    if (nmask) POST_WRITE(nmask, sizeof(long));
2357  }
2358}
2359
2360PRE_SYSCALL(get_mempolicy)(void *policy, void *nmask, long maxnode, long addr,
2361                           long flags) {}
2362
2363POST_SYSCALL(get_mempolicy)(long res, void *policy, void *nmask, long maxnode,
2364                            long addr, long flags) {
2365  if (res >= 0) {
2366    if (policy) POST_WRITE(policy, sizeof(int));
2367    if (nmask) POST_WRITE(nmask, sizeof(long));
2368  }
2369}
2370
2371PRE_SYSCALL(inotify_init)() {}
2372
2373POST_SYSCALL(inotify_init)(long res) {}
2374
2375PRE_SYSCALL(inotify_init1)(long flags) {}
2376
2377POST_SYSCALL(inotify_init1)(long res, long flags) {}
2378
2379PRE_SYSCALL(inotify_add_watch)(long fd, const void *path, long mask) {
2380  if (path)
2381    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
2382}
2383
2384POST_SYSCALL(inotify_add_watch)(long res, long fd, const void *path,
2385                                long mask) {}
2386
2387PRE_SYSCALL(inotify_rm_watch)(long fd, long wd) {}
2388
2389POST_SYSCALL(inotify_rm_watch)(long res, long fd, long wd) {}
2390
2391PRE_SYSCALL(spu_run)(long fd, void *unpc, void *ustatus) {}
2392
2393POST_SYSCALL(spu_run)(long res, long fd, unsigned *unpc, unsigned *ustatus) {
2394  if (res >= 0) {
2395    if (unpc) POST_WRITE(unpc, sizeof(*unpc));
2396    if (ustatus) POST_WRITE(ustatus, sizeof(*ustatus));
2397  }
2398}
2399
2400PRE_SYSCALL(spu_create)(const void *name, long flags, long mode, long fd) {
2401  if (name)
2402    PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
2403}
2404
2405POST_SYSCALL(spu_create)(long res, const void *name, long flags, long mode,
2406                         long fd) {}
2407
2408PRE_SYSCALL(mknodat)(long dfd, const void *filename, long mode, long dev) {
2409  if (filename)
2410    PRE_READ(filename,
2411             __sanitizer::internal_strlen((const char *)filename) + 1);
2412}
2413
2414POST_SYSCALL(mknodat)(long res, long dfd, const void *filename, long mode,
2415                      long dev) {}
2416
2417PRE_SYSCALL(mkdirat)(long dfd, const void *pathname, long mode) {
2418  if (pathname)
2419    PRE_READ(pathname,
2420             __sanitizer::internal_strlen((const char *)pathname) + 1);
2421}
2422
2423POST_SYSCALL(mkdirat)(long res, long dfd, const void *pathname, long mode) {}
2424
2425PRE_SYSCALL(unlinkat)(long dfd, const void *pathname, long flag) {
2426  if (pathname)
2427    PRE_READ(pathname,
2428             __sanitizer::internal_strlen((const char *)pathname) + 1);
2429}
2430
2431POST_SYSCALL(unlinkat)(long res, long dfd, const void *pathname, long flag) {}
2432
2433PRE_SYSCALL(symlinkat)(const void *oldname, long newdfd, const void *newname) {
2434  if (oldname)
2435    PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
2436  if (newname)
2437    PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
2438}
2439
2440POST_SYSCALL(symlinkat)(long res, const void *oldname, long newdfd,
2441                        const void *newname) {}
2442
2443PRE_SYSCALL(linkat)(long olddfd, const void *oldname, long newdfd,
2444                    const void *newname, long flags) {
2445  if (oldname)
2446    PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
2447  if (newname)
2448    PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
2449}
2450
2451POST_SYSCALL(linkat)(long res, long olddfd, const void *oldname, long newdfd,
2452                     const void *newname, long flags) {}
2453
2454PRE_SYSCALL(renameat)(long olddfd, const void *oldname, long newdfd,
2455                      const void *newname) {
2456  if (oldname)
2457    PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
2458  if (newname)
2459    PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
2460}
2461
2462POST_SYSCALL(renameat)(long res, long olddfd, const void *oldname, long newdfd,
2463                       const void *newname) {}
2464
2465PRE_SYSCALL(futimesat)(long dfd, const void *filename, void *utimes) {
2466  if (filename)
2467    PRE_READ(filename,
2468             __sanitizer::internal_strlen((const char *)filename) + 1);
2469}
2470
2471POST_SYSCALL(futimesat)(long res, long dfd, const void *filename,
2472                        void *utimes) {
2473  if (res >= 0) {
2474    if (utimes) POST_WRITE(utimes, timeval_sz);
2475  }
2476}
2477
2478PRE_SYSCALL(faccessat)(long dfd, const void *filename, long mode) {
2479  if (filename)
2480    PRE_READ(filename,
2481             __sanitizer::internal_strlen((const char *)filename) + 1);
2482}
2483
2484POST_SYSCALL(faccessat)(long res, long dfd, const void *filename, long mode) {}
2485
2486PRE_SYSCALL(fchmodat)(long dfd, const void *filename, long mode) {
2487  if (filename)
2488    PRE_READ(filename,
2489             __sanitizer::internal_strlen((const char *)filename) + 1);
2490}
2491
2492POST_SYSCALL(fchmodat)(long res, long dfd, const void *filename, long mode) {}
2493
2494PRE_SYSCALL(fchownat)(long dfd, const void *filename, long user, long group,
2495                      long flag) {
2496  if (filename)
2497    PRE_READ(filename,
2498             __sanitizer::internal_strlen((const char *)filename) + 1);
2499}
2500
2501POST_SYSCALL(fchownat)(long res, long dfd, const void *filename, long user,
2502                       long group, long flag) {}
2503
2504PRE_SYSCALL(openat)(long dfd, const void *filename, long flags, long mode) {
2505  if (filename)
2506    PRE_READ(filename,
2507             __sanitizer::internal_strlen((const char *)filename) + 1);
2508}
2509
2510POST_SYSCALL(openat)(long res, long dfd, const void *filename, long flags,
2511                     long mode) {}
2512
2513PRE_SYSCALL(newfstatat)(long dfd, const void *filename, void *statbuf,
2514                        long flag) {
2515  if (filename)
2516    PRE_READ(filename,
2517             __sanitizer::internal_strlen((const char *)filename) + 1);
2518}
2519
2520POST_SYSCALL(newfstatat)(long res, long dfd, const void *filename,
2521                         void *statbuf, long flag) {
2522  if (res >= 0) {
2523    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
2524  }
2525}
2526
2527PRE_SYSCALL(fstatat64)(long dfd, const void *filename, void *statbuf,
2528                       long flag) {
2529  if (filename)
2530    PRE_READ(filename,
2531             __sanitizer::internal_strlen((const char *)filename) + 1);
2532}
2533
2534POST_SYSCALL(fstatat64)(long res, long dfd, const void *filename, void *statbuf,
2535                        long flag) {
2536  if (res >= 0) {
2537    if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
2538  }
2539}
2540
2541PRE_SYSCALL(readlinkat)(long dfd, const void *path, void *buf, long bufsiz) {
2542  if (path)
2543    PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
2544}
2545
2546POST_SYSCALL(readlinkat)(long res, long dfd, const void *path, void *buf,
2547                         long bufsiz) {
2548  if (res >= 0) {
2549    if (buf)
2550      POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
2551  }
2552}
2553
2554PRE_SYSCALL(utimensat)(long dfd, const void *filename, void *utimes,
2555                       long flags) {
2556  if (filename)
2557    PRE_READ(filename,
2558             __sanitizer::internal_strlen((const char *)filename) + 1);
2559}
2560
2561POST_SYSCALL(utimensat)(long res, long dfd, const void *filename, void *utimes,
2562                        long flags) {
2563  if (res >= 0) {
2564    if (utimes) POST_WRITE(utimes, struct_timespec_sz);
2565  }
2566}
2567
2568PRE_SYSCALL(unshare)(long unshare_flags) {}
2569
2570POST_SYSCALL(unshare)(long res, long unshare_flags) {}
2571
2572PRE_SYSCALL(splice)(long fd_in, void *off_in, long fd_out, void *off_out,
2573                    long len, long flags) {}
2574
2575POST_SYSCALL(splice)(long res, long fd_in, void *off_in, long fd_out,
2576                     void *off_out, long len, long flags) {
2577  if (res >= 0) {
2578    if (off_in) POST_WRITE(off_in, sizeof(long long));
2579    if (off_out) POST_WRITE(off_out, sizeof(long long));
2580  }
2581}
2582
2583PRE_SYSCALL(vmsplice)(long fd, const __sanitizer_iovec *iov, long nr_segs,
2584                      long flags) {}
2585
2586POST_SYSCALL(vmsplice)(long res, long fd, const __sanitizer_iovec *iov,
2587                       long nr_segs, long flags) {
2588  if (res >= 0) {
2589    if (iov) kernel_read_iovec(iov, nr_segs, res);
2590  }
2591}
2592
2593PRE_SYSCALL(tee)(long fdin, long fdout, long len, long flags) {}
2594
2595POST_SYSCALL(tee)(long res, long fdin, long fdout, long len, long flags) {}
2596
2597PRE_SYSCALL(get_robust_list)(long pid, void *head_ptr, void *len_ptr) {}
2598
2599POST_SYSCALL(get_robust_list)(long res, long pid, void *head_ptr,
2600                              void *len_ptr) {}
2601
2602PRE_SYSCALL(set_robust_list)(void *head, long len) {}
2603
2604POST_SYSCALL(set_robust_list)(long res, void *head, long len) {}
2605
2606PRE_SYSCALL(getcpu)(void *cpu, void *node, void *cache) {}
2607
2608POST_SYSCALL(getcpu)(long res, void *cpu, void *node, void *cache) {
2609  if (res >= 0) {
2610    if (cpu) POST_WRITE(cpu, sizeof(unsigned));
2611    if (node) POST_WRITE(node, sizeof(unsigned));
2612    // The third argument to this system call is nowadays unused.
2613  }
2614}
2615
2616PRE_SYSCALL(signalfd)(long ufd, void *user_mask, long sizemask) {}
2617
2618POST_SYSCALL(signalfd)(long res, long ufd, kernel_sigset_t *user_mask,
2619                       long sizemask) {
2620  if (res >= 0) {
2621    if (user_mask) POST_WRITE(user_mask, sizemask);
2622  }
2623}
2624
2625PRE_SYSCALL(signalfd4)(long ufd, void *user_mask, long sizemask, long flags) {}
2626
2627POST_SYSCALL(signalfd4)(long res, long ufd, kernel_sigset_t *user_mask,
2628                        long sizemask, long flags) {
2629  if (res >= 0) {
2630    if (user_mask) POST_WRITE(user_mask, sizemask);
2631  }
2632}
2633
2634PRE_SYSCALL(timerfd_create)(long clockid, long flags) {}
2635
2636POST_SYSCALL(timerfd_create)(long res, long clockid, long flags) {}
2637
2638PRE_SYSCALL(timerfd_settime)(long ufd, long flags, const void *utmr,
2639                             void *otmr) {
2640  if (utmr) PRE_READ(utmr, struct_itimerspec_sz);
2641}
2642
2643POST_SYSCALL(timerfd_settime)(long res, long ufd, long flags, const void *utmr,
2644                              void *otmr) {
2645  if (res >= 0) {
2646    if (otmr) POST_WRITE(otmr, struct_itimerspec_sz);
2647  }
2648}
2649
2650PRE_SYSCALL(timerfd_gettime)(long ufd, void *otmr) {}
2651
2652POST_SYSCALL(timerfd_gettime)(long res, long ufd, void *otmr) {
2653  if (res >= 0) {
2654    if (otmr) POST_WRITE(otmr, struct_itimerspec_sz);
2655  }
2656}
2657
2658PRE_SYSCALL(eventfd)(long count) {}
2659
2660POST_SYSCALL(eventfd)(long res, long count) {}
2661
2662PRE_SYSCALL(eventfd2)(long count, long flags) {}
2663
2664POST_SYSCALL(eventfd2)(long res, long count, long flags) {}
2665
2666PRE_SYSCALL(old_readdir)(long arg0, void *arg1, long arg2) {}
2667
2668POST_SYSCALL(old_readdir)(long res, long arg0, void *arg1, long arg2) {
2669  // Missing definition of 'struct old_linux_dirent'.
2670}
2671
2672PRE_SYSCALL(pselect6)(long arg0, __sanitizer___kernel_fd_set *arg1,
2673                      __sanitizer___kernel_fd_set *arg2,
2674                      __sanitizer___kernel_fd_set *arg3, void *arg4,
2675                      void *arg5) {}
2676
2677POST_SYSCALL(pselect6)(long res, long arg0, __sanitizer___kernel_fd_set *arg1,
2678                       __sanitizer___kernel_fd_set *arg2,
2679                       __sanitizer___kernel_fd_set *arg3, void *arg4,
2680                       void *arg5) {
2681  if (res >= 0) {
2682    if (arg1) POST_WRITE(arg1, sizeof(*arg1));
2683    if (arg2) POST_WRITE(arg2, sizeof(*arg2));
2684    if (arg3) POST_WRITE(arg3, sizeof(*arg3));
2685    if (arg4) POST_WRITE(arg4, struct_timespec_sz);
2686  }
2687}
2688
2689PRE_SYSCALL(ppoll)(__sanitizer_pollfd *arg0, long arg1, void *arg2,
2690                   const kernel_sigset_t *arg3, long arg4) {
2691  if (arg3) PRE_READ(arg3, arg4);
2692}
2693
2694POST_SYSCALL(ppoll)(long res, __sanitizer_pollfd *arg0, long arg1, void *arg2,
2695                    const void *arg3, long arg4) {
2696  if (res >= 0) {
2697    if (arg0) POST_WRITE(arg0, sizeof(*arg0));
2698    if (arg2) POST_WRITE(arg2, struct_timespec_sz);
2699  }
2700}
2701
2702PRE_SYSCALL(syncfs)(long fd) {}
2703
2704POST_SYSCALL(syncfs)(long res, long fd) {}
2705
2706PRE_SYSCALL(perf_event_open)(__sanitizer_perf_event_attr *attr_uptr, long pid,
2707                             long cpu, long group_fd, long flags) {
2708  if (attr_uptr) PRE_READ(attr_uptr, attr_uptr->size);
2709}
2710
2711POST_SYSCALL(perf_event_open)(long res, __sanitizer_perf_event_attr *attr_uptr,
2712                              long pid, long cpu, long group_fd, long flags) {}
2713
2714PRE_SYSCALL(mmap_pgoff)(long addr, long len, long prot, long flags, long fd,
2715                        long pgoff) {}
2716
2717POST_SYSCALL(mmap_pgoff)(long res, long addr, long len, long prot, long flags,
2718                         long fd, long pgoff) {}
2719
2720PRE_SYSCALL(old_mmap)(void *arg) {}
2721
2722POST_SYSCALL(old_mmap)(long res, void *arg) {}
2723
2724PRE_SYSCALL(name_to_handle_at)(long dfd, const void *name, void *handle,
2725                               void *mnt_id, long flag) {}
2726
2727POST_SYSCALL(name_to_handle_at)(long res, long dfd, const void *name,
2728                                void *handle, void *mnt_id, long flag) {}
2729
2730PRE_SYSCALL(open_by_handle_at)(long mountdirfd, void *handle, long flags) {}
2731
2732POST_SYSCALL(open_by_handle_at)(long res, long mountdirfd, void *handle,
2733                                long flags) {}
2734
2735PRE_SYSCALL(setns)(long fd, long nstype) {}
2736
2737POST_SYSCALL(setns)(long res, long fd, long nstype) {}
2738
2739PRE_SYSCALL(process_vm_readv)(long pid, const __sanitizer_iovec *lvec,
2740                              long liovcnt, const void *rvec, long riovcnt,
2741                              long flags) {}
2742
2743POST_SYSCALL(process_vm_readv)(long res, long pid,
2744                               const __sanitizer_iovec *lvec, long liovcnt,
2745                               const void *rvec, long riovcnt, long flags) {
2746  if (res >= 0) {
2747    if (lvec) kernel_write_iovec(lvec, liovcnt, res);
2748  }
2749}
2750
2751PRE_SYSCALL(process_vm_writev)(long pid, const __sanitizer_iovec *lvec,
2752                               long liovcnt, const void *rvec, long riovcnt,
2753                               long flags) {}
2754
2755POST_SYSCALL(process_vm_writev)(long res, long pid,
2756                                const __sanitizer_iovec *lvec, long liovcnt,
2757                                const void *rvec, long riovcnt, long flags) {
2758  if (res >= 0) {
2759    if (lvec) kernel_read_iovec(lvec, liovcnt, res);
2760  }
2761}
2762
2763PRE_SYSCALL(fork)() {
2764  COMMON_SYSCALL_PRE_FORK();
2765}
2766
2767POST_SYSCALL(fork)(long res) {
2768  COMMON_SYSCALL_POST_FORK(res);
2769}
2770
2771PRE_SYSCALL(vfork)() {
2772  COMMON_SYSCALL_PRE_FORK();
2773}
2774
2775POST_SYSCALL(vfork)(long res) {
2776  COMMON_SYSCALL_POST_FORK(res);
2777}
2778}  // extern "C"
2779
2780#undef PRE_SYSCALL
2781#undef PRE_READ
2782#undef PRE_WRITE
2783#undef POST_SYSCALL
2784#undef POST_READ
2785#undef POST_WRITE
2786
2787#endif  // SANITIZER_LINUX
2788