2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #ifdef HAVE_SYS_EPOLL_H
35 # include <sys/epoll.h>
40 #ifdef HAVE_LINUX_PERF_EVENT_H
41 # include <linux/perf_event.h>
44 static const struct xlat fcntlcmds[] = {
45 { F_DUPFD, "F_DUPFD" },
46 { F_GETFD, "F_GETFD" },
47 { F_SETFD, "F_SETFD" },
48 { F_GETFL, "F_GETFL" },
49 { F_SETFL, "F_SETFL" },
50 { F_GETLK, "F_GETLK" },
51 { F_SETLK, "F_SETLK" },
52 { F_SETLKW, "F_SETLKW" },
53 { F_GETOWN, "F_GETOWN" },
54 { F_SETOWN, "F_SETOWN" },
56 { F_RSETLK, "F_RSETLK" },
59 { F_RSETLKW, "F_RSETLKW" },
62 { F_RGETLK, "F_RGETLK" },
68 { F_SETSIG, "F_SETSIG" },
71 { F_GETSIG, "F_GETSIG" },
74 { F_CHKFL, "F_CHKFL" },
77 { F_DUP2FD, "F_DUP2FD" },
80 { F_ALLOCSP, "F_ALLOCSP" },
83 { F_ISSTREAM, "F_ISSTREAM" },
89 { F_NPRIV, "F_NPRIV" },
92 { F_QUOTACL, "F_QUOTACL" },
95 { F_BLOCKS, "F_BLOCKS" },
98 { F_BLKSIZE, "F_BLKSIZE" },
101 { F_GETOWN, "F_GETOWN" },
104 { F_SETOWN, "F_SETOWN" },
107 { F_REVOKE, "F_REVOKE" },
110 { F_SETLK, "F_SETLK" },
113 { F_SETLKW, "F_SETLKW" },
116 { F_FREESP, "F_FREESP" },
119 { F_GETLK, "F_GETLK" },
122 { F_SETLK64, "F_SETLK64" },
125 { F_SETLKW64, "F_SETLKW64" },
128 { F_FREESP64, "F_FREESP64" },
131 { F_GETLK64, "F_GETLK64" },
134 { F_SHARE, "F_SHARE" },
137 { F_UNSHARE, "F_UNSHARE" },
140 { F_SETLEASE, "F_SETLEASE" },
143 { F_GETLEASE, "F_GETLEASE" },
146 { F_NOTIFY, "F_NOTIFY" },
148 #ifdef F_DUPFD_CLOEXEC
149 { F_DUPFD_CLOEXEC,"F_DUPFD_CLOEXEC"},
154 static const struct xlat fdflags[] = {
156 { FD_CLOEXEC, "FD_CLOEXEC" },
163 static const struct xlat flockcmds[] = {
164 { LOCK_SH, "LOCK_SH" },
165 { LOCK_EX, "LOCK_EX" },
166 { LOCK_NB, "LOCK_NB" },
167 { LOCK_UN, "LOCK_UN" },
173 static const struct xlat lockfcmds[] = {
174 { F_RDLCK, "F_RDLCK" },
175 { F_WRLCK, "F_WRLCK" },
176 { F_UNLCK, "F_UNLCK" },
178 { F_EXLCK, "F_EXLCK" },
181 { F_SHLCK, "F_SHLCK" },
187 static const struct xlat notifyflags[] = {
189 { DN_ACCESS, "DN_ACCESS" },
192 { DN_MODIFY, "DN_MODIFY" },
195 { DN_CREATE, "DN_CREATE" },
198 { DN_DELETE, "DN_DELETE" },
201 { DN_RENAME, "DN_RENAME" },
204 { DN_ATTRIB, "DN_ATTRIB" },
207 { DN_MULTISHOT, "DN_MULTISHOT" },
213 static const struct xlat perf_event_open_flags[] = {
214 #ifdef PERF_FLAG_FD_NO_GROUP
215 { PERF_FLAG_FD_NO_GROUP, "PERF_FLAG_FD_NO_GROUP" },
217 #ifdef PERF_FLAG_FD_OUTPUT
218 { PERF_FLAG_FD_OUTPUT, "PERF_FLAG_FD_OUTPUT" },
220 #ifdef PERF_FLAG_PID_CGROUP
221 { PERF_FLAG_PID_CGROUP, "PERF_FLAG_PID_CGROUP" },
229 printflock64(struct tcb *tcp, long addr, int getlk)
233 if (umove(tcp, addr, &fl) < 0) {
238 printxval(lockfcmds, fl.l_type, "F_???");
239 tprints(", whence=");
240 printxval(whence_codes, fl.l_whence, "SEEK_???");
241 tprintf(", start=%lld, len=%lld", (long long) fl.l_start, (long long) fl.l_len);
243 tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
251 printflock(struct tcb *tcp, long addr, int getlk)
255 #if SUPPORTED_PERSONALITIES > 1
257 if (current_personality == 0) {
258 printflock64(tcp, addr, getlk);
262 if (current_wordsize != sizeof(fl.l_start)) {
263 if (current_wordsize == 4) {
264 /* 32-bit x86 app on x86_64 and similar cases */
268 int32_t l_start; /* off_t */
269 int32_t l_len; /* off_t */
270 int32_t l_pid; /* pid_t */
272 if (umove(tcp, addr, &fl32) < 0) {
276 fl.l_type = fl32.l_type;
277 fl.l_whence = fl32.l_whence;
278 fl.l_start = fl32.l_start;
279 fl.l_len = fl32.l_len;
280 fl.l_pid = fl32.l_pid;
282 /* let people know we have a problem here */
283 tprintf("<decode error: unsupported wordsize %d>",
290 if (umove(tcp, addr, &fl) < 0) {
296 printxval(lockfcmds, fl.l_type, "F_???");
297 tprints(", whence=");
298 printxval(whence_codes, fl.l_whence, "SEEK_???");
300 tprintf(", start=%lld, len=%lld", fl.l_start, fl.l_len);
302 tprintf(", start=%ld, len=%ld", fl.l_start, fl.l_len);
305 tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
311 sys_fcntl(struct tcb *tcp)
314 printfd(tcp, tcp->u_arg[0]);
316 printxval(fcntlcmds, tcp->u_arg[1], "F_???");
317 switch (tcp->u_arg[1]) {
320 printflags(fdflags, tcp->u_arg[2], "FD_???");
322 case F_SETOWN: case F_DUPFD:
323 #ifdef F_DUPFD_CLOEXEC
324 case F_DUPFD_CLOEXEC:
326 tprintf(", %ld", tcp->u_arg[2]);
330 tprint_open_modes(tcp->u_arg[2]);
332 case F_SETLK: case F_SETLKW:
337 printflock(tcp, tcp->u_arg[2], 0);
343 /* Linux glibc defines SETLK64 as SETLK,
344 even though the kernel has different values - as does Solaris. */
345 #if defined(F_SETLK64) && F_SETLK64 + 0 != F_SETLK
348 #if defined(F_SETLKW64) && F_SETLKW64 + 0 != F_SETLKW
352 printflock64(tcp, tcp->u_arg[2], 0);
358 printflags(notifyflags, tcp->u_arg[2], "DN_???");
364 printxval(lockfcmds, tcp->u_arg[2], "F_???");
370 switch (tcp->u_arg[1]) {
372 #ifdef F_DUPFD_CLOEXEC
373 case F_DUPFD_CLOEXEC:
375 case F_SETFD: case F_SETFL:
376 case F_SETLK: case F_SETLKW:
377 case F_SETOWN: case F_GETOWN:
386 if (syserror(tcp) || tcp->u_rval == 0)
388 tcp->auxstr = sprintflags("flags ", fdflags, tcp->u_rval);
389 return RVAL_HEX|RVAL_STR;
393 tcp->auxstr = sprint_open_modes(tcp->u_rval);
394 return RVAL_HEX|RVAL_STR;
397 printflock(tcp, tcp->u_arg[2], 1);
400 #if defined(F_GETLK64) && F_GETLK64+0 != F_GETLK
404 printflock64(tcp, tcp->u_arg[2], 1);
411 tcp->auxstr = xlookup(lockfcmds, tcp->u_rval);
412 return RVAL_HEX|RVAL_STR;
415 tprintf(", %#lx", tcp->u_arg[2]);
425 sys_flock(struct tcb *tcp)
428 printfd(tcp, tcp->u_arg[0]);
430 printflags(flockcmds, tcp->u_arg[1], "LOCK_???");
437 sys_close(struct tcb *tcp)
440 printfd(tcp, tcp->u_arg[0]);
446 do_dup2(struct tcb *tcp, int flags_arg)
449 printfd(tcp, tcp->u_arg[0]);
451 printfd(tcp, tcp->u_arg[1]);
452 if (flags_arg >= 0) {
454 printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???");
461 sys_dup2(struct tcb *tcp)
463 return do_dup2(tcp, -1);
467 sys_dup3(struct tcb *tcp)
469 return do_dup2(tcp, 2);
474 sys_getdtablesize(struct tcb *tcp)
481 decode_select(struct tcb *tcp, long *args, enum bitness_t bitness)
484 unsigned nfds, fdsize;
490 /* Beware of select(2^31-1, NULL, NULL, NULL) and similar... */
491 if (args[0] > 1024*1024)
495 fdsize = (((fdsize + 7) / 8) + sizeof(long)-1) & -sizeof(long);
498 fds = malloc(fdsize);
503 for (i = 0; i < 3; i++) {
510 tprintf(", %#lx", arg);
513 if (umoven(tcp, arg, fdsize, (char *) fds) < 0) {
518 for (j = 0, sep = ""; j < nfds; j++) {
519 if (FD_ISSET(j, fds)) {
529 printtv_bitness(tcp, args[4], bitness, 0);
532 static char outstr[1024];
534 #define end_outstr (outstr + sizeof(outstr))
542 tcp->auxstr = "Timeout";
546 fds = malloc(fdsize);
552 for (i = 0; i < 3; i++) {
556 if (!arg || umoven(tcp, arg, fdsize, (char *) fds) < 0)
558 for (j = 0; j < args[0]; j++) {
559 if (FD_ISSET(j, fds)) {
560 /* +2 chars needed at the end: ']',NUL */
561 if (outptr < end_outstr - (sizeof(", except [") + sizeof(int)*3 + 2)) {
563 outptr += sprintf(outptr, "%s%s [%u",
565 i == 0 ? "in" : i == 1 ? "out" : "except",
572 outptr += sprintf(outptr, " %u", j);
578 if (outptr != outstr)
584 /* This contains no useful information on SunOS. */
586 if (outptr < end_outstr - (10 + TIMEVAL_TEXT_BUFSIZE)) {
587 outptr += sprintf(outptr, "%sleft ", sep);
588 outptr = sprinttv(outptr, tcp, args[4], bitness, /*special:*/ 0);
592 tcp->auxstr = outstr;
600 sys_oldselect(struct tcb *tcp)
604 if (umoven(tcp, tcp->u_arg[0], sizeof args, (char *) args) < 0) {
608 return decode_select(tcp, args, BITNESS_CURRENT);
613 sys_osf_select(struct tcb *tcp)
615 long *args = tcp->u_arg;
616 return decode_select(tcp, args, BITNESS_32);
620 static const struct xlat epollctls[] = {
622 { EPOLL_CTL_ADD, "EPOLL_CTL_ADD" },
625 { EPOLL_CTL_MOD, "EPOLL_CTL_MOD" },
628 { EPOLL_CTL_DEL, "EPOLL_CTL_DEL" },
633 static const struct xlat epollevents[] = {
635 { EPOLLIN, "EPOLLIN" },
638 { EPOLLPRI, "EPOLLPRI" },
641 { EPOLLOUT, "EPOLLOUT" },
644 { EPOLLRDNORM, "EPOLLRDNORM" },
647 { EPOLLRDBAND, "EPOLLRDBAND" },
650 { EPOLLWRNORM, "EPOLLWRNORM" },
653 { EPOLLWRBAND, "EPOLLWRBAND" },
656 { EPOLLMSG, "EPOLLMSG" },
659 { EPOLLERR, "EPOLLERR" },
662 { EPOLLHUP, "EPOLLHUP" },
665 { EPOLLRDHUP, "EPOLLRDHUP" },
668 { EPOLLONESHOT, "EPOLLONESHOT" },
671 { EPOLLET, "EPOLLET" },
676 /* Not aliased to printargs_ld: we want it to have a distinct address */
678 sys_epoll_create(struct tcb *tcp)
680 return printargs_ld(tcp);
683 static const struct xlat epollflags[] = {
685 { EPOLL_CLOEXEC, "EPOLL_CLOEXEC" },
687 #ifdef EPOLL_NONBLOCK
688 { EPOLL_NONBLOCK, "EPOLL_NONBLOCK" },
694 sys_epoll_create1(struct tcb *tcp)
697 printflags(epollflags, tcp->u_arg[0], "EPOLL_???");
701 #ifdef HAVE_SYS_EPOLL_H
703 print_epoll_event(struct epoll_event *ev)
706 printflags(epollevents, ev->events, "EPOLL???");
707 /* We cannot know what format the program uses, so print u32 and u64
708 which will cover every value. */
709 tprintf(", {u32=%" PRIu32 ", u64=%" PRIu64 "}}",
710 ev->data.u32, ev->data.u64);
715 sys_epoll_ctl(struct tcb *tcp)
718 printfd(tcp, tcp->u_arg[0]);
720 printxval(epollctls, tcp->u_arg[1], "EPOLL_CTL_???");
722 printfd(tcp, tcp->u_arg[2]);
724 if (tcp->u_arg[3] == 0)
727 #ifdef HAVE_SYS_EPOLL_H
728 struct epoll_event ev;
729 if (umove(tcp, tcp->u_arg[3], &ev) == 0)
730 print_epoll_event(&ev);
740 epoll_wait_common(struct tcb *tcp)
743 printfd(tcp, tcp->u_arg[0]);
747 tprintf("%lx", tcp->u_arg[1]);
748 else if (tcp->u_rval == 0)
751 #ifdef HAVE_SYS_EPOLL_H
752 struct epoll_event ev, *start, *cur, *end;
756 start = (struct epoll_event *) tcp->u_arg[1];
757 end = start + tcp->u_rval;
758 for (cur = start; cur < end; ++cur) {
761 if (umove(tcp, (long) cur, &ev) == 0)
762 print_epoll_event(&ev);
771 tprintf(" %#lx", (long) start);
776 tprintf(", %d, %d", (int) tcp->u_arg[2], (int) tcp->u_arg[3]);
781 sys_epoll_wait(struct tcb *tcp)
783 epoll_wait_common(tcp);
788 sys_epoll_pwait(struct tcb *tcp)
790 epoll_wait_common(tcp);
793 print_sigset(tcp, tcp->u_arg[4], 0);
799 sys_io_setup(struct tcb *tcp)
802 tprintf("%ld, ", tcp->u_arg[0]);
805 tprintf("0x%0lx", tcp->u_arg[1]);
807 unsigned long user_id;
808 if (umove(tcp, tcp->u_arg[1], &user_id) == 0)
809 tprintf("{%lu}", user_id);
818 sys_io_destroy(struct tcb *tcp)
821 tprintf("%lu", tcp->u_arg[0]);
828 SUB_NONE, SUB_COMMON, SUB_POLL, SUB_VECTOR
832 iocb_cmd_lookup(unsigned cmd, enum iocb_sub *sub)
834 static char buf[sizeof("%u /* SUB_??? */") + sizeof(int)*3];
835 static const struct {
839 { "pread", SUB_COMMON },
840 { "pwrite", SUB_COMMON },
841 { "fsync", SUB_NONE },
842 { "fdsync", SUB_NONE },
844 { "poll", SUB_POLL },
845 { "noop", SUB_NONE },
846 { "preadv", SUB_VECTOR },
847 { "pwritev", SUB_VECTOR },
850 if (cmd < ARRAY_SIZE(cmds)) {
851 *sub = cmds[cmd].sub;
852 return cmds[cmd].name;
855 sprintf(buf, "%u /* SUB_??? */", cmd);
859 /* Not defined in libaio.h */
861 # define IOCB_RESFD (1 << 0)
865 print_common_flags(struct iocb *iocb)
867 #if HAVE_STRUCT_IOCB_U_C_FLAGS
868 if (iocb->u.c.flags & IOCB_RESFD)
869 tprintf(", resfd=%d", iocb->u.c.resfd);
870 if (iocb->u.c.flags & ~IOCB_RESFD)
871 tprintf(", flags=%x", iocb->u.c.flags);
873 # warning "libaio.h is too old => limited io_submit decoding"
877 #endif /* HAVE_LIBAIO_H */
880 sys_io_submit(struct tcb *tcp)
884 tprintf("%lu, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
886 /* and if nr is negative? */
892 struct iocb *iocbp, **iocbs = (void *)tcp->u_arg[2];
894 for (i = 0; i < nr; i++, iocbs++) {
902 if (umove(tcp, (unsigned long)iocbs, &iocbp) ||
903 umove(tcp, (unsigned long)iocbp, &iocb)) {
909 tprintf("data:%p, ", iocb.data);
911 tprintf("key:%u, ", iocb.key);
912 tprintf("%s, ", iocb_cmd_lookup(iocb.aio_lio_opcode, &sub));
913 if (iocb.aio_reqprio)
914 tprintf("reqprio:%d, ", iocb.aio_reqprio);
915 tprintf("filedes:%d", iocb.aio_fildes);
918 #if HAVE_DECL_IO_CMD_PWRITE
919 if (iocb.aio_lio_opcode == IO_CMD_PWRITE) {
921 printstr(tcp, (unsigned long)iocb.u.c.buf,
925 tprintf(", buf:%p", iocb.u.c.buf);
926 tprintf(", nbytes:%lu, offset:%lld",
929 print_common_flags(&iocb);
932 tprintf(", %lld", iocb.u.v.offset);
933 print_common_flags(&iocb);
935 tprint_iov(tcp, iocb.u.v.nr,
936 (unsigned long)iocb.u.v.vec,
937 #if HAVE_DECL_IO_CMD_PWRITEV
938 iocb.aio_lio_opcode == IO_CMD_PWRITEV
945 tprintf(", %x", iocb.u.poll.events);
955 #warning "libaio.h is not available => no io_submit decoding"
956 tprintf("%#lx", tcp->u_arg[2]);
964 sys_io_cancel(struct tcb *tcp)
970 tprintf("%lu, ", tcp->u_arg[0]);
972 if (umove(tcp, tcp->u_arg[1], &iocb) == 0) {
973 tprintf("{%p, %u, %u, %u, %d}, ",
975 (unsigned)iocb.aio_lio_opcode,
976 (unsigned)iocb.aio_reqprio, iocb.aio_fildes);
985 struct io_event event;
986 if (umove(tcp, tcp->u_arg[2], &event) == 0)
987 tprintf("{%p, %p, %ld, %ld}",
988 event.data, event.obj,
989 event.res, event.res2);
999 sys_io_getevents(struct tcb *tcp)
1001 if (entering(tcp)) {
1002 tprintf("%ld, %ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1],
1005 if (tcp->u_rval == 0) {
1008 #ifdef HAVE_LIBAIO_H
1009 struct io_event *events = (void *)tcp->u_arg[3];
1010 long i, nr = tcp->u_rval;
1012 for (i = 0; i < nr; i++, events++) {
1013 struct io_event event;
1020 if (umove(tcp, (unsigned long)events, &event) != 0) {
1024 tprintf("{%p, %p, %ld, %ld}", event.data,
1025 event.obj, event.res, event.res2);
1033 print_timespec(tcp, tcp->u_arg[4]);
1039 sys_select(struct tcb *tcp)
1041 return decode_select(tcp, tcp->u_arg, BITNESS_CURRENT);
1045 sys_pselect6(struct tcb *tcp)
1047 int rc = decode_select(tcp, tcp->u_arg, BITNESS_CURRENT);
1048 if (entering(tcp)) {
1053 if (umove(tcp, tcp->u_arg[5], &data) < 0)
1054 tprintf(", %#lx", tcp->u_arg[5]);
1057 if (data.len < sizeof(long))
1058 tprintf("%#lx", (long)data.ss);
1060 print_sigset(tcp, (long)data.ss, 0);
1061 tprintf(", %lu}", data.len);
1068 do_eventfd(struct tcb *tcp, int flags_arg)
1070 if (entering(tcp)) {
1071 tprintf("%lu", tcp->u_arg[0]);
1072 if (flags_arg >= 0) {
1074 printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???");
1081 sys_eventfd(struct tcb *tcp)
1083 return do_eventfd(tcp, -1);
1087 sys_eventfd2(struct tcb *tcp)
1089 return do_eventfd(tcp, 1);
1093 sys_perf_event_open(struct tcb *tcp)
1095 if (entering(tcp)) {
1096 tprintf("%#lx, %d, %d, %d, ",
1098 (int) tcp->u_arg[1],
1099 (int) tcp->u_arg[2],
1100 (int) tcp->u_arg[3]);
1101 printflags(perf_event_open_flags, tcp->u_arg[4],