2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 static const char copyright[] =
32 "@(#) Copyright (c) 1988, 1993\n\
33 The Regents of the University of California. All rights reserved.\n";
38 static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93";
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
44 #define _WANT_KERNEL_ERRNO
45 #include <sys/param.h>
46 #include <sys/capsicum.h>
47 #include <sys/errno.h>
52 #include <sys/ktrace.h>
53 #include <sys/ioctl.h>
54 #include <sys/socket.h>
56 #include <sys/sysent.h>
59 #include <sys/queue.h>
62 #include <sys/types.h>
63 #include <netipx/ipx.h>
66 #include <netatalk/at.h>
68 #include <arpa/inet.h>
69 #include <netinet/in.h>
88 #include "kdump_subr.h"
90 u_int abidump(struct ktr_header *);
91 int fetchprocinfo(struct ktr_header *, u_int *);
92 int fread_tail(void *, int, int);
93 void dumpheader(struct ktr_header *);
94 void ktrsyscall(struct ktr_syscall *, u_int);
95 void ktrsysret(struct ktr_sysret *, u_int);
96 void ktrnamei(char *, int);
97 void hexdump(char *, int, int);
98 void visdump(char *, int, int);
99 void ktrgenio(struct ktr_genio *, int);
100 void ktrpsig(struct ktr_psig *);
101 void ktrcsw(struct ktr_csw *);
102 void ktrcsw_old(struct ktr_csw_old *);
103 void ktruser_malloc(void *);
104 void ktruser_rtld(int, void *);
105 void ktruser(int, void *);
106 void ktrcaprights(cap_rights_t *);
107 void ktritimerval(struct itimerval *it);
108 void ktrsockaddr(struct sockaddr *);
109 void ktrstat(struct stat *);
110 void ktrstruct(char *, size_t);
111 void ktrcapfail(struct ktr_cap_fail *);
112 void ktrfault(struct ktr_fault *);
113 void ktrfaultend(struct ktr_faultend *);
114 void limitfd(int fd);
116 void ioctlname(unsigned long, int);
118 extern const char *signames[], *syscallnames[];
119 extern int nsyscalls;
121 static int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
122 resolv = 0, abiflag = 0, syscallno = 0;
123 static const char *tracefile = DEF_TRACEFILE;
124 static struct ktr_header ktr_header;
126 #define TIME_FORMAT "%b %e %T %Y"
127 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
129 #define print_number64(first,i,n,c) do { \
132 if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \
136 if (quad_slots == 2) \
137 __v = (uint64_t)(uint32_t)(i)[0] | \
138 ((uint64_t)(uint32_t)(i)[1]) << 32; \
140 __v = (uint64_t)*(i); \
142 printf("%c%jd", (c), (intmax_t)__v); \
144 printf("%c%#jx", (c), (uintmax_t)__v); \
150 #define print_number(i,n,c) do { \
152 printf("%c%jd", c, (intmax_t)*i); \
154 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \
160 #if defined(__amd64__) || defined(__i386__)
162 void linux_ktrsyscall(struct ktr_syscall *, u_int);
163 void linux_ktrsysret(struct ktr_sysret *, u_int);
164 extern const char *linux_syscallnames[];
166 #include <linux_syscalls.c>
170 * Linux syscalls return negative errno's, we do positive and map them
172 static int bsd_to_linux_errno[ELAST + 1] = {
173 -0, -1, -2, -3, -4, -5, -6, -7, -8, -9,
174 -10, -35, -12, -13, -14, -15, -16, -17, -18, -19,
175 -20, -21, -22, -23, -24, -25, -26, -27, -28, -29,
176 -30, -31, -32, -33, -34, -11,-115,-114, -88, -89,
177 -90, -91, -92, -93, -94, -95, -96, -97, -98, -99,
178 -100,-101,-102,-103,-104,-105,-106,-107,-108,-109,
179 -110,-111, -40, -36,-112,-113, -39, -11, -87,-122,
180 -116, -66, -6, -6, -6, -6, -6, -37, -38, -9,
181 -6, -6, -43, -42, -75,-125, -84, -95, -16, -74,
186 #if defined(__amd64__)
187 extern const char *linux32_syscallnames[];
189 #include <linux32_syscalls.c>
194 TAILQ_ENTRY(proc_info) info;
199 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
206 * Cache NLS data before entering capability mode.
207 * XXXPJD: There should be strerror_init() and strsignal_init() in libc.
209 (void)catopen("libc", NL_CAT_LOCALE);
218 * Allow localtime(3) to cache /etc/localtime content before entering
220 * XXXPJD: There should be localtime_init() in libc.
223 (void)localtime(<ime);
227 main(int argc, char *argv[])
229 int ch, ktrlen, size;
231 int trpoints = ALL_POINTS;
236 setlocale(LC_CTYPE, "");
238 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
253 maxdata = atoi(optarg);
271 timestamp = 3; /* elapsed timestamp */
277 timestamp = 2; /* relative timestamp */
283 trpoints = getpoints(optarg);
285 errx(1, "unknown trace point in %s", optarg);
294 m = malloc(size = 1025);
296 errx(1, "%s", strerror(ENOMEM));
297 if (!freopen(tracefile, "r", stdin))
298 err(1, "%s", tracefile);
304 if (cap_enter() < 0 && errno != ENOSYS)
305 err(1, "unable to enter capability mode");
307 limitfd(STDIN_FILENO);
308 limitfd(STDOUT_FILENO);
309 limitfd(STDERR_FILENO);
311 TAILQ_INIT(&trace_procs);
313 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
314 if (ktr_header.ktr_type & KTR_DROP) {
315 ktr_header.ktr_type &= ~KTR_DROP;
316 if (!drop_logged && threads) {
318 "%6jd %6jd %-8.*s Events dropped.\n",
319 (intmax_t)ktr_header.ktr_pid,
320 ktr_header.ktr_tid > 0 ?
321 (intmax_t)ktr_header.ktr_tid : 0,
322 MAXCOMLEN, ktr_header.ktr_comm);
324 } else if (!drop_logged) {
325 printf("%6jd %-8.*s Events dropped.\n",
326 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
327 ktr_header.ktr_comm);
331 if (trpoints & (1<<ktr_header.ktr_type))
332 if (pid == 0 || ktr_header.ktr_pid == pid ||
333 ktr_header.ktr_tid == pid)
334 dumpheader(&ktr_header);
335 if ((ktrlen = ktr_header.ktr_len) < 0)
336 errx(1, "bogus length 0x%x", ktrlen);
338 m = realloc(m, ktrlen+1);
340 errx(1, "%s", strerror(ENOMEM));
343 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
344 errx(1, "data too short");
345 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
347 sv_flags = abidump(&ktr_header);
348 if (pid && ktr_header.ktr_pid != pid &&
349 ktr_header.ktr_tid != pid)
351 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
354 switch (ktr_header.ktr_type) {
356 #if defined(__amd64__) || defined(__i386__)
357 if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX)
358 linux_ktrsyscall((struct ktr_syscall *)m,
362 ktrsyscall((struct ktr_syscall *)m, sv_flags);
365 #if defined(__amd64__) || defined(__i386__)
366 if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX)
367 linux_ktrsysret((struct ktr_sysret *)m,
371 ktrsysret((struct ktr_sysret *)m, sv_flags);
378 ktrgenio((struct ktr_genio *)m, ktrlen);
381 ktrpsig((struct ktr_psig *)m);
384 if (ktrlen == sizeof(struct ktr_csw_old))
385 ktrcsw_old((struct ktr_csw_old *)m);
387 ktrcsw((struct ktr_csw *)m);
393 ktrstruct(m, ktrlen);
396 ktrcapfail((struct ktr_cap_fail *)m);
399 ktrfault((struct ktr_fault *)m);
402 ktrfaultend((struct ktr_faultend *)m);
420 cap_rights_init(&rights, CAP_FSTAT);
425 cap_rights_set(&rights, CAP_READ);
428 cap_rights_set(&rights, CAP_IOCTL, CAP_WRITE);
429 cmd = TIOCGETA; /* required by isatty(3) in printf(3) */
432 cap_rights_set(&rights, CAP_WRITE);
434 cap_rights_set(&rights, CAP_IOCTL);
442 if (cap_rights_limit(fd, &rights) < 0 && errno != ENOSYS)
443 err(1, "unable to limit rights for descriptor %d", fd);
444 if (cmd != 0 && cap_ioctls_limit(fd, &cmd, 1) < 0 && errno != ENOSYS)
445 err(1, "unable to limit ioctls for descriptor %d", fd);
449 fread_tail(void *buf, int size, int num)
453 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
461 fetchprocinfo(struct ktr_header *kth, u_int *flags)
463 struct proc_info *pi;
465 switch (kth->ktr_type) {
467 TAILQ_FOREACH(pi, &trace_procs, info) {
468 if (pi->pid == kth->ktr_pid) {
469 TAILQ_REMOVE(&trace_procs, pi, info);
473 pi = malloc(sizeof(struct proc_info));
475 errx(1, "%s", strerror(ENOMEM));
476 pi->sv_flags = *flags;
477 pi->pid = kth->ktr_pid;
478 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
482 TAILQ_FOREACH(pi, &trace_procs, info) {
483 if (pi->pid == kth->ktr_pid) {
484 TAILQ_REMOVE(&trace_procs, pi, info);
496 abidump(struct ktr_header *kth)
498 struct proc_info *pi;
503 TAILQ_FOREACH(pi, &trace_procs, info) {
504 if (pi->pid == kth->ktr_pid) {
505 flags = pi->sv_flags;
513 switch (flags & SV_ABI_MASK) {
533 printf("%s%s ", abi, arch);
539 dumpheader(struct ktr_header *kth)
541 static char unknown[64];
542 static struct timeval prevtime, temp;
545 switch (kth->ktr_type) {
587 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
592 * The ktr_tid field was previously the ktr_buffer field, which held
593 * the kernel pointer value for the buffer associated with data
594 * following the record header. It now holds a threadid, but only
595 * for trace files after the change. Older trace files still contain
596 * kernel pointers. Detect this and suppress the results by printing
597 * negative tid's as 0.
600 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
601 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
602 MAXCOMLEN, kth->ktr_comm);
604 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
607 if (timestamp == 3) {
608 if (prevtime.tv_sec == 0)
609 prevtime = kth->ktr_time;
610 timevalsub(&kth->ktr_time, &prevtime);
612 if (timestamp == 2) {
613 temp = kth->ktr_time;
614 timevalsub(&kth->ktr_time, &prevtime);
617 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
618 kth->ktr_time.tv_usec);
623 #include <sys/syscall.h>
625 #include <sys/kern/syscalls.c>
627 int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]);
630 ktrsyscall(struct ktr_syscall *ktr, u_int flags)
632 int narg = ktr->ktr_narg;
633 register_t *ip, *first;
635 int quad_align, quad_slots;
637 if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) ||
638 (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0))
639 printf("[%d]", ktr->ktr_code);
641 printf("%s", syscallnames[ktr->ktr_code]);
643 printf("[%d]", ktr->ktr_code);
645 ip = first = &ktr->ktr_args[0];
649 (flags == 0 || (flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
651 if (flags & SV_ILP32) {
658 switch (ktr->ktr_code) {
676 atfdname(*ip, decimal);
682 switch (ktr->ktr_code) {
684 print_number(ip, narg, c);
686 ioctlname(*ip, decimal);
702 print_number(ip, narg, c);
710 print_number(ip, narg, c);
712 flagsandmodename(ip[0], ip[1], decimal);
717 print_number(ip, narg, c);
718 print_number(ip, narg, c);
720 * A flags value of zero is valid for
721 * wait4() but not for wait6(), so
722 * handle zero special here.
725 print_number(ip, narg, c);
735 idtypename(*ip, decimal);
739 print_number64(first, ip, narg, c);
740 print_number(ip, narg, c);
749 print_number(ip, narg, c);
757 print_number(ip, narg, c);
764 print_number(ip, narg, c);
765 print_number(ip, narg, c);
767 getfsstatflagsname(*ip);
772 print_number(ip, narg, c);
773 print_number(ip, narg, c);
780 print_number(ip, narg, c);
788 print_number(ip, narg, c);
789 print_number(ip, narg, c);
791 sendrecvflagsname(*ip);
797 print_number(ip, narg, c);
798 print_number(ip, narg, c);
799 print_number(ip, narg, c);
801 sendrecvflagsname(*ip);
808 print_number(ip, narg, c);
815 print_number(ip, narg, c);
834 print_number(ip, narg, c);
835 print_number(ip, narg, c);
841 #ifdef SYS_freebsd6_mmap
842 case SYS_freebsd6_mmap:
843 print_number(ip, narg, c);
844 print_number(ip, narg, c);
856 print_number(ip, narg, c);
857 print_number(ip, narg, c);
868 print_number(ip, narg, c);
869 print_number(ip, narg, c);
876 print_number(ip, narg, c);
877 print_number(ip, narg, c);
879 madvisebehavname(*ip);
883 case SYS_setpriority:
884 print_number(ip, narg, c);
885 print_number(ip, narg, c);
892 print_number(ip, narg, c);
894 fcntlcmdname(ip[0], ip[1], decimal);
902 sockdomainname(sockdomain);
906 socktypenamewithflags(*ip);
909 if (sockdomain == PF_INET ||
910 sockdomain == PF_INET6) {
912 sockipprotoname(*ip);
921 print_number(ip, narg, c);
923 sockoptlevelname(*ip, decimal);
924 if (*ip == SOL_SOCKET) {
933 #ifdef SYS_freebsd6_lseek
934 case SYS_freebsd6_lseek:
935 print_number(ip, narg, c);
936 /* Hidden 'pad' argument, not in lseek(2) */
937 print_number(ip, narg, c);
938 print_number64(first, ip, narg, c);
946 print_number(ip, narg, c);
947 print_number64(first, ip, narg, c);
954 print_number(ip, narg, c);
964 print_number(ip, narg, c);
971 print_number(ip, narg, c);
973 shutdownhowname(*ip);
983 socktypenamewithflags(*ip);
997 print_number(ip, narg, c);
1019 print_number(ip, narg, c);
1020 print_number(ip, narg, c);
1027 print_number(ip, narg, c);
1028 print_number(ip, narg, c);
1035 print_number(ip, narg, c);
1042 print_number(ip, narg, c);
1043 print_number(ip, narg, c);
1050 print_number(ip, narg, c);
1057 print_number(ip, narg, c);
1060 printf(",0%o", (unsigned int)ip[1]);
1065 print_number(ip, narg, c);
1066 print_number(ip, narg, c);
1079 case SYS_lio_listio:
1081 lio_listioname(*ip);
1092 case SYS_sched_setscheduler:
1093 print_number(ip, narg, c);
1095 schedpolicyname(*ip);
1099 case SYS_sched_get_priority_max:
1100 case SYS_sched_get_priority_min:
1102 schedpolicyname(*ip);
1107 print_number(ip, narg, c);
1108 print_number(ip, narg, c);
1109 print_number(ip, narg, c);
1110 print_number(ip, narg, c);
1111 print_number(ip, narg, c);
1112 print_number(ip, narg, c);
1114 sendfileflagsname(*(int *)ip);
1119 print_number(ip, narg, c);
1125 case SYS_sigprocmask:
1127 sigprocmaskhowname(*ip);
1132 case SYS___acl_get_file:
1133 case SYS___acl_set_file:
1134 case SYS___acl_get_fd:
1135 case SYS___acl_set_fd:
1136 case SYS___acl_delete_file:
1137 case SYS___acl_delete_fd:
1138 case SYS___acl_aclcheck_file:
1139 case SYS___acl_aclcheck_fd:
1140 case SYS___acl_get_link:
1141 case SYS___acl_set_link:
1142 case SYS___acl_delete_link:
1143 case SYS___acl_aclcheck_link:
1144 print_number(ip, narg, c);
1157 case SYS_extattrctl:
1158 print_number(ip, narg, c);
1160 extattrctlname(*ip);
1165 print_number(ip, narg, c);
1166 print_number(ip, narg, c);
1168 mountflagsname(*ip);
1172 case SYS_thr_create:
1173 print_number(ip, narg, c);
1174 print_number(ip, narg, c);
1176 thrcreateflagsname(*ip);
1181 print_number(ip, narg, c);
1187 case SYS_kldunloadf:
1188 print_number(ip, narg, c);
1190 kldunloadfflagsname(*ip);
1197 print_number(ip, narg, c);
1199 atfdname(*ip, decimal);
1203 case SYS_cap_fcntls_limit:
1204 print_number(ip, narg, c);
1211 case SYS_posix_fadvise:
1212 print_number(ip, narg, c);
1213 print_number(ip, narg, c);
1214 print_number(ip, narg, c);
1216 fadvisebehavname((int)*ip);
1222 idtypename(*ip, decimal);
1226 print_number64(first, ip, narg, c);
1228 procctlcmdname(*ip);
1233 print_number(ip, narg, c);
1237 case UMTX_OP_CV_WAIT:
1241 umtxcvwaitflags(*ip);
1243 case UMTX_OP_RW_RDLOCK:
1247 umtxrwlockflags(*ip);
1255 print_number(ip, narg, c);
1256 print_number64(first, ip, narg, c);
1261 print_number(ip, narg, c);
1269 ktrsysret(struct ktr_sysret *ktr, u_int flags)
1271 register_t ret = ktr->ktr_retval;
1272 int error = ktr->ktr_error;
1273 int code = ktr->ktr_code;
1275 if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) ||
1276 (code >= nsyscalls || code < 0))
1277 printf("[%d] ", code);
1279 printf("%s", syscallnames[code]);
1281 printf("[%d]", code);
1287 printf("%ld", (long)ret);
1288 if (ret < 0 || ret > 9)
1289 printf("/%#lx", (unsigned long)ret);
1292 printf("%ld", (long)ret);
1294 printf("%#lx", (unsigned long)ret);
1296 } else if (error == ERESTART)
1298 else if (error == EJUSTRETURN)
1299 printf("JUSTRETURN");
1301 printf("-1 errno %d", ktr->ktr_error);
1303 printf(" %s", strerror(ktr->ktr_error));
1309 ktrnamei(char *cp, int len)
1311 printf("\"%.*s\"\n", len, cp);
1315 hexdump(char *p, int len, int screenwidth)
1323 i = 13; /* base offset */
1324 i += (width / 2) + 1; /* spaces every second byte */
1325 i += (width * 2); /* width of bytes */
1327 i += width; /* each byte */
1329 } while (i < screenwidth);
1332 for (n = 0; n < len; n += width) {
1333 for (i = n; i < n + width; i++) {
1334 if ((i % width) == 0) { /* beginning of line */
1335 printf(" 0x%04x", i);
1341 printf("%02x", p[i] & 0xff);
1346 for (i = n; i < n + width; i++) {
1349 if (p[i] >= ' ' && p[i] <= '~')
1356 if ((i % width) != 0)
1361 visdump(char *dp, int datalen, int screenwidth)
1370 for (;datalen > 0; datalen--, dp++) {
1371 vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1374 * Keep track of printables and
1375 * space chars (like fold(1)).
1387 width = 8 - (col&07);
1392 if (col + width > (screenwidth-2)) {
1407 ktrgenio(struct ktr_genio *ktr, int len)
1409 int datalen = len - sizeof (struct ktr_genio);
1410 char *dp = (char *)ktr + sizeof (struct ktr_genio);
1411 static int screenwidth = 0;
1414 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1415 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1416 datalen == 1 ? "" : "s");
1419 if (screenwidth == 0) {
1422 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1424 screenwidth = ws.ws_col;
1428 if (maxdata && datalen > maxdata)
1431 for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
1432 if (dp[i] >= 32 && dp[i] < 127)
1434 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1439 hexdump(dp, datalen, screenwidth);
1441 visdump(dp, datalen, screenwidth);
1444 const char *signames[] = {
1445 "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */
1446 "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */
1447 "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */
1448 "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */
1449 "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */
1450 "USR2", NULL, /* 31 - 32 */
1454 ktrpsig(struct ktr_psig *psig)
1456 if (psig->signo > 0 && psig->signo < NSIG)
1457 printf("SIG%s ", signames[psig->signo]);
1459 printf("SIG %d ", psig->signo);
1460 if (psig->action == SIG_DFL) {
1461 printf("SIG_DFL code=");
1462 sigcodename(psig->signo, psig->code);
1465 printf("caught handler=0x%lx mask=0x%x code=",
1466 (u_long)psig->action, psig->mask.__bits[0]);
1467 sigcodename(psig->signo, psig->code);
1473 ktrcsw_old(struct ktr_csw_old *cs)
1475 printf("%s %s\n", cs->out ? "stop" : "resume",
1476 cs->user ? "user" : "kernel");
1480 ktrcsw(struct ktr_csw *cs)
1482 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1483 cs->user ? "user" : "kernel", cs->wmesg);
1486 #define UTRACE_DLOPEN_START 1
1487 #define UTRACE_DLOPEN_STOP 2
1488 #define UTRACE_DLCLOSE_START 3
1489 #define UTRACE_DLCLOSE_STOP 4
1490 #define UTRACE_LOAD_OBJECT 5
1491 #define UTRACE_UNLOAD_OBJECT 6
1492 #define UTRACE_ADD_RUNDEP 7
1493 #define UTRACE_PRELOAD_FINISHED 8
1494 #define UTRACE_INIT_CALL 9
1495 #define UTRACE_FINI_CALL 10
1496 #define UTRACE_DLSYM_START 11
1497 #define UTRACE_DLSYM_STOP 12
1499 struct utrace_rtld {
1500 char sig[4]; /* 'RTLD' */
1506 char name[MAXPATHLEN];
1510 ktruser_rtld(int len, void *p)
1512 struct utrace_rtld *ut = p;
1517 switch (ut->event) {
1518 case UTRACE_DLOPEN_START:
1520 printf("dlopen(%s, ", ut->name);
1521 switch (mode & RTLD_MODEMASK) {
1526 printf("RTLD_LAZY");
1529 printf("%#x", mode & RTLD_MODEMASK);
1531 if (mode & RTLD_GLOBAL)
1532 printf(" | RTLD_GLOBAL");
1533 if (mode & RTLD_TRACE)
1534 printf(" | RTLD_TRACE");
1535 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE))
1536 printf(" | %#x", mode &
1537 ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE));
1540 case UTRACE_DLOPEN_STOP:
1541 printf("%p = dlopen(%s) ref %d\n", ut->handle, ut->name,
1544 case UTRACE_DLCLOSE_START:
1545 printf("dlclose(%p) (%s, %d)\n", ut->handle, ut->name,
1548 case UTRACE_DLCLOSE_STOP:
1549 printf("dlclose(%p) finished\n", ut->handle);
1551 case UTRACE_LOAD_OBJECT:
1552 printf("RTLD: loaded %p @ %p - %p (%s)\n", ut->handle,
1553 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
1556 case UTRACE_UNLOAD_OBJECT:
1557 printf("RTLD: unloaded %p @ %p - %p (%s)\n", ut->handle,
1558 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
1561 case UTRACE_ADD_RUNDEP:
1562 parent = ut->mapbase;
1563 printf("RTLD: %p now depends on %p (%s, %d)\n", parent,
1564 ut->handle, ut->name, ut->refcnt);
1566 case UTRACE_PRELOAD_FINISHED:
1567 printf("RTLD: LD_PRELOAD finished\n");
1569 case UTRACE_INIT_CALL:
1570 printf("RTLD: init %p for %p (%s)\n", ut->mapbase, ut->handle,
1573 case UTRACE_FINI_CALL:
1574 printf("RTLD: fini %p for %p (%s)\n", ut->mapbase, ut->handle,
1577 case UTRACE_DLSYM_START:
1578 printf("RTLD: dlsym(%p, %s)\n", ut->handle, ut->name);
1580 case UTRACE_DLSYM_STOP:
1581 printf("RTLD: %p = dlsym(%p, %s)\n", ut->mapbase, ut->handle,
1588 printf("RTLD: %d ", len);
1591 printf(" %d", *cp++);
1593 printf(" %02x", *cp++);
1598 struct utrace_malloc {
1605 ktruser_malloc(void *p)
1607 struct utrace_malloc *ut = p;
1609 if (ut->p == (void *)(intptr_t)(-1))
1610 printf("malloc_init()\n");
1611 else if (ut->s == 0)
1612 printf("free(%p)\n", ut->p);
1613 else if (ut->p == NULL)
1614 printf("%p = malloc(%zu)\n", ut->r, ut->s);
1616 printf("%p = realloc(%p, %zu)\n", ut->r, ut->p, ut->s);
1620 ktruser(int len, void *p)
1624 if (len >= 8 && bcmp(p, "RTLD", 4) == 0) {
1625 ktruser_rtld(len, p);
1629 if (len == sizeof(struct utrace_malloc)) {
1638 printf(" %d", *cp++);
1640 printf(" %02x", *cp++);
1645 ktrcaprights(cap_rights_t *rightsp)
1648 printf("cap_rights_t ");
1654 ktrtimeval(struct timeval *tv)
1657 printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1661 ktritimerval(struct itimerval *it)
1664 printf("itimerval { .interval = ");
1665 ktrtimeval(&it->it_interval);
1666 printf(", .value = ");
1667 ktrtimeval(&it->it_value);
1672 ktrsockaddr(struct sockaddr *sa)
1675 TODO: Support additional address families
1676 #include <netnatm/natm.h>
1677 struct sockaddr_natm *natm;
1678 #include <netsmb/netbios.h>
1679 struct sockaddr_nb *nb;
1684 * note: ktrstruct() has already verified that sa points to a
1685 * buffer at least sizeof(struct sockaddr) bytes long and exactly
1686 * sa->sa_len bytes long.
1688 printf("struct sockaddr { ");
1689 sockfamilyname(sa->sa_family);
1692 #define check_sockaddr_len(n) \
1693 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
1694 printf("invalid"); \
1698 switch(sa->sa_family) {
1700 struct sockaddr_in sa_in;
1702 memset(&sa_in, 0, sizeof(sa_in));
1703 memcpy(&sa_in, sa, sa->sa_len);
1704 check_sockaddr_len(in);
1705 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1706 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1710 case AF_APPLETALK: {
1711 struct sockaddr_at sa_at;
1712 struct netrange *nr;
1714 memset(&sa_at, 0, sizeof(sa_at));
1715 memcpy(&sa_at, sa, sa->sa_len);
1716 check_sockaddr_len(at);
1717 nr = &sa_at.sat_range.r_netrange;
1718 printf("%d.%d, %d-%d, %d", ntohs(sa_at.sat_addr.s_net),
1719 sa_at.sat_addr.s_node, ntohs(nr->nr_firstnet),
1720 ntohs(nr->nr_lastnet), nr->nr_phase);
1725 struct sockaddr_in6 sa_in6;
1727 memset(&sa_in6, 0, sizeof(sa_in6));
1728 memcpy(&sa_in6, sa, sa->sa_len);
1729 check_sockaddr_len(in6);
1730 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1731 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1732 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1737 struct sockaddr_ipx sa_ipx;
1739 memset(&sa_ipx, 0, sizeof(sa_ipx));
1740 memcpy(&sa_ipx, sa, sa->sa_len);
1741 check_sockaddr_len(ipx);
1742 /* XXX wish we had ipx_ntop */
1743 printf("%s", ipx_ntoa(sa_ipx.sipx_addr));
1749 struct sockaddr_un sa_un;
1751 memset(&sa_un, 0, sizeof(sa_un));
1752 memcpy(&sa_un, sa, sa->sa_len);
1753 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1757 printf("unknown address family");
1763 ktrstat(struct stat *statp)
1765 char mode[12], timestr[PATH_MAX + 4];
1771 * note: ktrstruct() has already verified that statp points to a
1772 * buffer exactly sizeof(struct stat) bytes long.
1774 printf("struct stat {");
1775 printf("dev=%ju, ino=%ju, ",
1776 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1778 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1780 strmode(statp->st_mode, mode);
1781 printf("mode=%s, ", mode);
1783 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1784 if (resolv == 0 || (pwd = getpwuid(statp->st_uid)) == NULL)
1785 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1787 printf("uid=\"%s\", ", pwd->pw_name);
1788 if (resolv == 0 || (grp = getgrgid(statp->st_gid)) == NULL)
1789 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1791 printf("gid=\"%s\", ", grp->gr_name);
1792 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1795 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1797 tm = localtime(&statp->st_atim.tv_sec);
1798 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1799 printf("\"%s\"", timestr);
1801 if (statp->st_atim.tv_nsec != 0)
1802 printf(".%09ld, ", statp->st_atim.tv_nsec);
1807 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1809 tm = localtime(&statp->st_mtim.tv_sec);
1810 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1811 printf("\"%s\"", timestr);
1813 if (statp->st_mtim.tv_nsec != 0)
1814 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1819 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1821 tm = localtime(&statp->st_ctim.tv_sec);
1822 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1823 printf("\"%s\"", timestr);
1825 if (statp->st_ctim.tv_nsec != 0)
1826 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1829 printf("birthtime=");
1831 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1833 tm = localtime(&statp->st_birthtim.tv_sec);
1834 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1835 printf("\"%s\"", timestr);
1837 if (statp->st_birthtim.tv_nsec != 0)
1838 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1841 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1842 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1843 (intmax_t)statp->st_blocks, statp->st_flags);
1848 ktrstruct(char *buf, size_t buflen)
1851 size_t namelen, datalen;
1853 cap_rights_t rights;
1854 struct itimerval it;
1856 struct sockaddr_storage ss;
1858 for (name = buf, namelen = 0;
1859 namelen < buflen && name[namelen] != '\0';
1862 if (namelen == buflen)
1864 if (name[namelen] != '\0')
1866 data = buf + namelen + 1;
1867 datalen = buflen - namelen - 1;
1871 for (i = 0; i < (int)namelen; ++i)
1872 if (!isalpha(name[i]))
1874 if (strcmp(name, "caprights") == 0) {
1875 if (datalen != sizeof(cap_rights_t))
1877 memcpy(&rights, data, datalen);
1878 ktrcaprights(&rights);
1879 } else if (strcmp(name, "itimerval") == 0) {
1880 if (datalen != sizeof(struct itimerval))
1882 memcpy(&it, data, datalen);
1884 } else if (strcmp(name, "stat") == 0) {
1885 if (datalen != sizeof(struct stat))
1887 memcpy(&sb, data, datalen);
1889 } else if (strcmp(name, "sockaddr") == 0) {
1890 if (datalen > sizeof(ss))
1892 memcpy(&ss, data, datalen);
1893 if (datalen != ss.ss_len)
1895 ktrsockaddr((struct sockaddr *)&ss);
1897 printf("unknown structure\n");
1901 printf("invalid record\n");
1905 ktrcapfail(struct ktr_cap_fail *ktr)
1907 switch (ktr->cap_type) {
1908 case CAPFAIL_NOTCAPABLE:
1909 /* operation on fd with insufficient capabilities */
1910 printf("operation requires ");
1911 capname(&ktr->cap_needed);
1912 printf(", process holds ");
1913 capname(&ktr->cap_held);
1915 case CAPFAIL_INCREASE:
1916 /* requested more capabilities than fd already has */
1917 printf("attempt to increase capabilities from ");
1918 capname(&ktr->cap_held);
1920 capname(&ktr->cap_needed);
1922 case CAPFAIL_SYSCALL:
1923 /* called restricted syscall */
1924 printf("disallowed system call");
1926 case CAPFAIL_LOOKUP:
1927 /* used ".." in strict-relative mode */
1928 printf("restricted VFS lookup");
1931 printf("unknown capability failure: ");
1932 capname(&ktr->cap_needed);
1934 capname(&ktr->cap_held);
1941 ktrfault(struct ktr_fault *ktr)
1944 printf("0x%jx ", (uintmax_t)ktr->vaddr);
1945 vmprotname(ktr->type);
1950 ktrfaultend(struct ktr_faultend *ktr)
1953 vmresultname(ktr->result);
1957 #if defined(__amd64__) || defined(__i386__)
1959 #if defined(__amd64__)
1960 #define NLINUX_SYSCALLS(v) ((v) & SV_ILP32 ? \
1961 nitems(linux32_syscallnames) : nitems(linux_syscallnames))
1962 #define LINUX_SYSCALLNAMES(v, i) ((v) & SV_ILP32 ? \
1963 linux32_syscallnames[i] : linux_syscallnames[i])
1965 #define NLINUX_SYSCALLS(v) (nitems(linux_syscallnames))
1966 #define LINUX_SYSCALLNAMES(v, i) (linux_syscallnames[i])
1970 linux_ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
1972 int narg = ktr->ktr_narg;
1973 unsigned code = ktr->ktr_code;
1976 if (ktr->ktr_code < 0 || code >= NLINUX_SYSCALLS(sv_flags))
1977 printf("[%d]", ktr->ktr_code);
1979 printf("%s", LINUX_SYSCALLNAMES(sv_flags, ktr->ktr_code));
1981 printf("[%d]", ktr->ktr_code);
1983 ip = &ktr->ktr_args[0];
1987 print_number(ip, narg, c);
1994 linux_ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1996 register_t ret = ktr->ktr_retval;
1997 unsigned code = ktr->ktr_code;
1998 int error = ktr->ktr_error;
2000 if (ktr->ktr_code < 0 || code >= NLINUX_SYSCALLS(sv_flags))
2001 printf("[%d] ", ktr->ktr_code);
2003 printf("%s ", LINUX_SYSCALLNAMES(sv_flags, code));
2005 printf("[%d]", code);
2011 printf("%ld", (long)ret);
2012 if (ret < 0 || ret > 9)
2013 printf("/%#lx", (unsigned long)ret);
2016 printf("%ld", (long)ret);
2018 printf("%#lx", (unsigned long)ret);
2020 } else if (error == ERESTART)
2022 else if (error == EJUSTRETURN)
2023 printf("JUSTRETURN");
2025 if (ktr->ktr_error <= ELAST + 1)
2026 error = abs(bsd_to_linux_errno[ktr->ktr_error]);
2029 printf("-1 errno %d", error);
2031 printf(" %s", strerror(ktr->ktr_error));
2040 fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2041 "[-m maxdata] [-p pid] [-t trstr]\n");