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("$FreeBSD$");
46 #include <sys/errno.h>
48 #include <sys/param.h>
49 #include <sys/capability.h>
50 #include <sys/errno.h>
55 #include <sys/ktrace.h>
56 #include <sys/ioctl.h>
57 #include <sys/socket.h>
59 #include <sys/sysent.h>
61 #include <sys/queue.h>
64 #include <sys/types.h>
65 #include <netipx/ipx.h>
68 #include <netatalk/at.h>
70 #include <arpa/inet.h>
71 #include <netinet/in.h>
89 #include "kdump_subr.h"
91 u_int abidump(struct ktr_header *);
92 int fetchprocinfo(struct ktr_header *, u_int *);
93 int fread_tail(void *, int, int);
94 void dumpheader(struct ktr_header *);
95 void ktrsyscall(struct ktr_syscall *, u_int);
96 void ktrsysret(struct ktr_sysret *, u_int);
97 void ktrnamei(char *, int);
98 void hexdump(char *, int, int);
99 void visdump(char *, int, int);
100 void ktrgenio(struct ktr_genio *, int);
101 void ktrpsig(struct ktr_psig *);
102 void ktrcsw(struct ktr_csw *);
103 void ktrcsw_old(struct ktr_csw_old *);
104 void ktruser_malloc(unsigned char *);
105 void ktruser_rtld(int, unsigned char *);
106 void ktruser(int, unsigned char *);
107 void ktrcaprights(cap_rights_t *);
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 int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
119 resolv = 0, abiflag = 0;
120 const char *tracefile = DEF_TRACEFILE;
121 struct ktr_header ktr_header;
123 #define TIME_FORMAT "%b %e %T %Y"
124 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
126 #define print_number(i,n,c) do { \
128 printf("%c%jd", c, (intmax_t)*i); \
130 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \
136 #if defined(__amd64__) || defined(__i386__)
138 void linux_ktrsyscall(struct ktr_syscall *);
139 void linux_ktrsysret(struct ktr_sysret *);
140 extern char *linux_syscallnames[];
141 extern int nlinux_syscalls;
145 * Linux syscalls return negative errno's, we do positive and map them
147 static int bsd_to_linux_errno[ELAST + 1] = {
148 -0, -1, -2, -3, -4, -5, -6, -7, -8, -9,
149 -10, -35, -12, -13, -14, -15, -16, -17, -18, -19,
150 -20, -21, -22, -23, -24, -25, -26, -27, -28, -29,
151 -30, -31, -32, -33, -34, -11,-115,-114, -88, -89,
152 -90, -91, -92, -93, -94, -95, -96, -97, -98, -99,
153 -100,-101,-102,-103,-104,-105,-106,-107,-108,-109,
154 -110,-111, -40, -36,-112,-113, -39, -11, -87,-122,
155 -116, -66, -6, -6, -6, -6, -6, -37, -38, -9,
156 -6, -6, -43, -42, -75,-125, -84, -95, -16, -74,
163 TAILQ_ENTRY(proc_info) info;
168 TAILQ_HEAD(trace_procs, proc_info) trace_procs;
175 * Cache NLS data before entering capability mode.
176 * XXXPJD: There should be strerror_init() and strsignal_init() in libc.
178 (void)catopen("libc", NL_CAT_LOCALE);
187 * Allow localtime(3) to cache /etc/localtime content before entering
189 * XXXPJD: There should be localtime_init() in libc.
192 (void)localtime(<ime);
196 main(int argc, char *argv[])
198 int ch, ktrlen, size;
200 int trpoints = ALL_POINTS;
205 setlocale(LC_CTYPE, "");
207 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrsTt:")) != -1)
222 maxdata = atoi(optarg);
237 timestamp = 3; /* elapsed timestamp */
243 timestamp = 2; /* relative timestamp */
249 trpoints = getpoints(optarg);
251 errx(1, "unknown trace point in %s", optarg);
260 m = malloc(size = 1025);
262 errx(1, "%s", strerror(ENOMEM));
263 if (!freopen(tracefile, "r", stdin))
264 err(1, "%s", tracefile);
270 if (cap_enter() < 0 && errno != ENOSYS)
271 err(1, "unable to enter capability mode");
273 limitfd(STDIN_FILENO);
274 limitfd(STDOUT_FILENO);
275 limitfd(STDERR_FILENO);
277 TAILQ_INIT(&trace_procs);
279 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
280 if (ktr_header.ktr_type & KTR_DROP) {
281 ktr_header.ktr_type &= ~KTR_DROP;
282 if (!drop_logged && threads) {
284 "%6jd %6jd %-8.*s Events dropped.\n",
285 (intmax_t)ktr_header.ktr_pid,
286 ktr_header.ktr_tid > 0 ?
287 (intmax_t)ktr_header.ktr_tid : 0,
288 MAXCOMLEN, ktr_header.ktr_comm);
290 } else if (!drop_logged) {
291 printf("%6jd %-8.*s Events dropped.\n",
292 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
293 ktr_header.ktr_comm);
297 if (trpoints & (1<<ktr_header.ktr_type))
298 if (pid == 0 || ktr_header.ktr_pid == pid ||
299 ktr_header.ktr_tid == pid)
300 dumpheader(&ktr_header);
301 if ((ktrlen = ktr_header.ktr_len) < 0)
302 errx(1, "bogus length 0x%x", ktrlen);
304 m = realloc(m, ktrlen+1);
306 errx(1, "%s", strerror(ENOMEM));
309 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
310 errx(1, "data too short");
311 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
313 sv_flags = abidump(&ktr_header);
314 if (pid && ktr_header.ktr_pid != pid &&
315 ktr_header.ktr_tid != pid)
317 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
320 switch (ktr_header.ktr_type) {
322 #if defined(__amd64__) || defined(__i386__)
323 if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX)
324 linux_ktrsyscall((struct ktr_syscall *)m);
327 ktrsyscall((struct ktr_syscall *)m, sv_flags);
330 #if defined(__amd64__) || defined(__i386__)
331 if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX)
332 linux_ktrsysret((struct ktr_sysret *)m);
335 ktrsysret((struct ktr_sysret *)m, sv_flags);
342 ktrgenio((struct ktr_genio *)m, ktrlen);
345 ktrpsig((struct ktr_psig *)m);
348 if (ktrlen == sizeof(struct ktr_csw_old))
349 ktrcsw_old((struct ktr_csw_old *)m);
351 ktrcsw((struct ktr_csw *)m);
357 ktrstruct(m, ktrlen);
360 ktrcapfail((struct ktr_cap_fail *)m);
363 ktrfault((struct ktr_fault *)m);
366 ktrfaultend((struct ktr_faultend *)m);
384 cap_rights_init(&rights, CAP_FSTAT);
389 cap_rights_set(&rights, CAP_READ);
392 cap_rights_set(&rights, CAP_IOCTL, CAP_WRITE);
393 cmd = TIOCGETA; /* required by isatty(3) in printf(3) */
396 cap_rights_set(&rights, CAP_WRITE);
398 cap_rights_set(&rights, CAP_IOCTL);
406 if (cap_rights_limit(fd, &rights) < 0 && errno != ENOSYS)
407 err(1, "unable to limit rights for descriptor %d", fd);
408 if (cmd != -1 && cap_ioctls_limit(fd, &cmd, 1) < 0 && errno != ENOSYS)
409 err(1, "unable to limit ioctls for descriptor %d", fd);
413 fread_tail(void *buf, int size, int num)
417 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
425 fetchprocinfo(struct ktr_header *kth, u_int *flags)
427 struct proc_info *pi;
429 switch (kth->ktr_type) {
431 TAILQ_FOREACH(pi, &trace_procs, info) {
432 if (pi->pid == kth->ktr_pid) {
433 TAILQ_REMOVE(&trace_procs, pi, info);
437 pi = malloc(sizeof(struct proc_info));
439 errx(1, "%s", strerror(ENOMEM));
440 pi->sv_flags = *flags;
441 pi->pid = kth->ktr_pid;
442 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
446 TAILQ_FOREACH(pi, &trace_procs, info) {
447 if (pi->pid == kth->ktr_pid) {
448 TAILQ_REMOVE(&trace_procs, pi, info);
460 abidump(struct ktr_header *kth)
462 struct proc_info *pi;
467 TAILQ_FOREACH(pi, &trace_procs, info) {
468 if (pi->pid == kth->ktr_pid) {
469 flags = pi->sv_flags;
477 switch (flags & SV_ABI_MASK) {
497 printf("%s%s ", abi, arch);
503 dumpheader(struct ktr_header *kth)
505 static char unknown[64];
506 static struct timeval prevtime, temp;
509 switch (kth->ktr_type) {
551 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
556 * The ktr_tid field was previously the ktr_buffer field, which held
557 * the kernel pointer value for the buffer associated with data
558 * following the record header. It now holds a threadid, but only
559 * for trace files after the change. Older trace files still contain
560 * kernel pointers. Detect this and suppress the results by printing
561 * negative tid's as 0.
564 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
565 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
566 MAXCOMLEN, kth->ktr_comm);
568 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
571 if (timestamp == 3) {
572 if (prevtime.tv_sec == 0)
573 prevtime = kth->ktr_time;
574 timevalsub(&kth->ktr_time, &prevtime);
576 if (timestamp == 2) {
577 temp = kth->ktr_time;
578 timevalsub(&kth->ktr_time, &prevtime);
581 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
582 kth->ktr_time.tv_usec);
587 #include <sys/syscall.h>
589 #include <sys/kern/syscalls.c>
591 int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]);
594 ktrsyscall(struct ktr_syscall *ktr, u_int flags)
596 int narg = ktr->ktr_narg;
600 if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) ||
601 (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0))
602 printf("[%d]", ktr->ktr_code);
604 printf("%s", syscallnames[ktr->ktr_code]);
605 ip = &ktr->ktr_args[0];
609 (flags == 0 || (flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
610 switch (ktr->ktr_code) {
627 atfdname(*ip, decimal);
633 switch (ktr->ktr_code) {
635 print_number(ip, narg, c);
637 ioctlname(*ip, decimal);
653 print_number(ip, narg, c);
661 print_number(ip, narg, c);
663 flagsandmodename(ip[0], ip[1], decimal);
668 print_number(ip, narg, c);
669 print_number(ip, narg, c);
671 * A flags value of zero is valid for
672 * wait4() but not for wait6(), so
673 * handle zero special here.
676 print_number(ip, narg, c);
686 idtypename(*ip, decimal);
690 print_number(ip, narg, c);
691 print_number(ip, narg, c);
700 print_number(ip, narg, c);
708 print_number(ip, narg, c);
715 print_number(ip, narg, c);
716 print_number(ip, narg, c);
718 getfsstatflagsname(*ip);
723 print_number(ip, narg, c);
724 print_number(ip, narg, c);
731 print_number(ip, narg, c);
739 print_number(ip, narg, c);
740 print_number(ip, narg, c);
742 sendrecvflagsname(*ip);
748 print_number(ip, narg, c);
749 print_number(ip, narg, c);
750 print_number(ip, narg, c);
752 sendrecvflagsname(*ip);
759 print_number(ip, narg, c);
766 print_number(ip, narg, c);
785 print_number(ip, narg, c);
786 print_number(ip, narg, c);
792 #ifdef SYS_freebsd6_mmap
793 case SYS_freebsd6_mmap:
794 print_number(ip, narg, c);
795 print_number(ip, narg, c);
807 print_number(ip, narg, c);
808 print_number(ip, narg, c);
819 print_number(ip, narg, c);
820 print_number(ip, narg, c);
827 print_number(ip, narg, c);
828 print_number(ip, narg, c);
830 madvisebehavname(*ip);
834 case SYS_setpriority:
835 print_number(ip, narg, c);
836 print_number(ip, narg, c);
843 print_number(ip, narg, c);
845 fcntlcmdname(ip[0], ip[1], decimal);
853 sockdomainname(sockdomain);
857 socktypenamewithflags(*ip);
860 if (sockdomain == PF_INET ||
861 sockdomain == PF_INET6) {
863 sockipprotoname(*ip);
872 print_number(ip, narg, c);
874 sockoptlevelname(*ip, decimal);
875 if (*ip == SOL_SOCKET) {
884 #ifdef SYS_freebsd6_lseek
885 case SYS_freebsd6_lseek:
886 print_number(ip, narg, c);
887 /* Hidden 'pad' argument, not in lseek(2) */
888 print_number(ip, narg, c);
889 print_number(ip, narg, c);
897 print_number(ip, narg, c);
898 /* Hidden 'pad' argument, not in lseek(2) */
899 print_number(ip, narg, c);
906 print_number(ip, narg, c);
916 print_number(ip, narg, c);
923 print_number(ip, narg, c);
925 shutdownhowname(*ip);
935 socktypenamewithflags(*ip);
949 print_number(ip, narg, c);
971 print_number(ip, narg, c);
972 print_number(ip, narg, c);
979 print_number(ip, narg, c);
980 print_number(ip, narg, c);
987 print_number(ip, narg, c);
994 print_number(ip, narg, c);
995 print_number(ip, narg, c);
1002 print_number(ip, narg, c);
1009 print_number(ip, narg, c);
1010 print_number(ip, narg, c);
1023 case SYS_lio_listio:
1025 lio_listioname(*ip);
1036 case SYS_sched_setscheduler:
1037 print_number(ip, narg, c);
1039 schedpolicyname(*ip);
1043 case SYS_sched_get_priority_max:
1044 case SYS_sched_get_priority_min:
1046 schedpolicyname(*ip);
1051 print_number(ip, narg, c);
1052 print_number(ip, narg, c);
1053 print_number(ip, narg, c);
1054 print_number(ip, narg, c);
1055 print_number(ip, narg, c);
1056 print_number(ip, narg, c);
1058 sendfileflagsname(*ip);
1063 print_number(ip, narg, c);
1069 case SYS_sigprocmask:
1071 sigprocmaskhowname(*ip);
1076 case SYS___acl_get_file:
1077 case SYS___acl_set_file:
1078 case SYS___acl_get_fd:
1079 case SYS___acl_set_fd:
1080 case SYS___acl_delete_file:
1081 case SYS___acl_delete_fd:
1082 case SYS___acl_aclcheck_file:
1083 case SYS___acl_aclcheck_fd:
1084 case SYS___acl_get_link:
1085 case SYS___acl_set_link:
1086 case SYS___acl_delete_link:
1087 case SYS___acl_aclcheck_link:
1088 print_number(ip, narg, c);
1101 case SYS_extattrctl:
1102 print_number(ip, narg, c);
1104 extattrctlname(*ip);
1109 print_number(ip, narg, c);
1110 print_number(ip, narg, c);
1112 mountflagsname(*ip);
1116 case SYS_thr_create:
1117 print_number(ip, narg, c);
1118 print_number(ip, narg, c);
1120 thrcreateflagsname(*ip);
1125 print_number(ip, narg, c);
1131 case SYS_kldunloadf:
1132 print_number(ip, narg, c);
1134 kldunloadfflagsname(*ip);
1141 print_number(ip, narg, c);
1143 atfdname(*ip, decimal);
1147 case SYS_cap_fcntls_limit:
1148 print_number(ip, narg, c);
1155 case SYS_posix_fadvise:
1156 print_number(ip, narg, c);
1157 print_number(ip, narg, c);
1158 print_number(ip, narg, c);
1160 fadvisebehavname((int)*ip);
1166 idtypename(*ip, decimal);
1170 print_number(ip, narg, c);
1172 procctlcmdname(*ip);
1179 print_number(ip, narg, c);
1187 ktrsysret(struct ktr_sysret *ktr, u_int flags)
1189 register_t ret = ktr->ktr_retval;
1190 int error = ktr->ktr_error;
1191 int code = ktr->ktr_code;
1193 if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) ||
1194 (code >= nsyscalls || code < 0))
1195 printf("[%d] ", code);
1197 printf("%s ", syscallnames[code]);
1201 printf("%ld", (long)ret);
1202 if (ret < 0 || ret > 9)
1203 printf("/%#lx", (unsigned long)ret);
1206 printf("%ld", (long)ret);
1208 printf("%#lx", (unsigned long)ret);
1210 } else if (error == ERESTART)
1212 else if (error == EJUSTRETURN)
1213 printf("JUSTRETURN");
1215 printf("-1 errno %d", ktr->ktr_error);
1217 printf(" %s", strerror(ktr->ktr_error));
1223 ktrnamei(char *cp, int len)
1225 printf("\"%.*s\"\n", len, cp);
1229 hexdump(char *p, int len, int screenwidth)
1237 i = 13; /* base offset */
1238 i += (width / 2) + 1; /* spaces every second byte */
1239 i += (width * 2); /* width of bytes */
1241 i += width; /* each byte */
1243 } while (i < screenwidth);
1246 for (n = 0; n < len; n += width) {
1247 for (i = n; i < n + width; i++) {
1248 if ((i % width) == 0) { /* beginning of line */
1249 printf(" 0x%04x", i);
1255 printf("%02x", p[i] & 0xff);
1260 for (i = n; i < n + width; i++) {
1263 if (p[i] >= ' ' && p[i] <= '~')
1270 if ((i % width) != 0)
1275 visdump(char *dp, int datalen, int screenwidth)
1284 for (;datalen > 0; datalen--, dp++) {
1285 vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1288 * Keep track of printables and
1289 * space chars (like fold(1)).
1301 width = 8 - (col&07);
1306 if (col + width > (screenwidth-2)) {
1321 ktrgenio(struct ktr_genio *ktr, int len)
1323 int datalen = len - sizeof (struct ktr_genio);
1324 char *dp = (char *)ktr + sizeof (struct ktr_genio);
1325 static int screenwidth = 0;
1328 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1329 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1330 datalen == 1 ? "" : "s");
1333 if (screenwidth == 0) {
1336 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1338 screenwidth = ws.ws_col;
1342 if (maxdata && datalen > maxdata)
1345 for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
1346 if (dp[i] >= 32 && dp[i] < 127)
1348 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1353 hexdump(dp, datalen, screenwidth);
1355 visdump(dp, datalen, screenwidth);
1358 const char *signames[] = {
1359 "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */
1360 "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */
1361 "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */
1362 "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */
1363 "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */
1364 "USR2", NULL, /* 31 - 32 */
1368 ktrpsig(struct ktr_psig *psig)
1370 if (psig->signo > 0 && psig->signo < NSIG)
1371 printf("SIG%s ", signames[psig->signo]);
1373 printf("SIG %d ", psig->signo);
1374 if (psig->action == SIG_DFL) {
1375 printf("SIG_DFL code=");
1376 sigcodename(psig->signo, psig->code);
1379 printf("caught handler=0x%lx mask=0x%x code=",
1380 (u_long)psig->action, psig->mask.__bits[0]);
1381 sigcodename(psig->signo, psig->code);
1387 ktrcsw_old(struct ktr_csw_old *cs)
1389 printf("%s %s\n", cs->out ? "stop" : "resume",
1390 cs->user ? "user" : "kernel");
1394 ktrcsw(struct ktr_csw *cs)
1396 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1397 cs->user ? "user" : "kernel", cs->wmesg);
1400 #define UTRACE_DLOPEN_START 1
1401 #define UTRACE_DLOPEN_STOP 2
1402 #define UTRACE_DLCLOSE_START 3
1403 #define UTRACE_DLCLOSE_STOP 4
1404 #define UTRACE_LOAD_OBJECT 5
1405 #define UTRACE_UNLOAD_OBJECT 6
1406 #define UTRACE_ADD_RUNDEP 7
1407 #define UTRACE_PRELOAD_FINISHED 8
1408 #define UTRACE_INIT_CALL 9
1409 #define UTRACE_FINI_CALL 10
1411 struct utrace_rtld {
1412 char sig[4]; /* 'RTLD' */
1418 char name[MAXPATHLEN];
1422 ktruser_rtld(int len, unsigned char *p)
1424 struct utrace_rtld *ut = (struct utrace_rtld *)p;
1428 switch (ut->event) {
1429 case UTRACE_DLOPEN_START:
1431 printf("dlopen(%s, ", ut->name);
1432 switch (mode & RTLD_MODEMASK) {
1437 printf("RTLD_LAZY");
1440 printf("%#x", mode & RTLD_MODEMASK);
1442 if (mode & RTLD_GLOBAL)
1443 printf(" | RTLD_GLOBAL");
1444 if (mode & RTLD_TRACE)
1445 printf(" | RTLD_TRACE");
1446 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE))
1447 printf(" | %#x", mode &
1448 ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE));
1451 case UTRACE_DLOPEN_STOP:
1452 printf("%p = dlopen(%s) ref %d\n", ut->handle, ut->name,
1455 case UTRACE_DLCLOSE_START:
1456 printf("dlclose(%p) (%s, %d)\n", ut->handle, ut->name,
1459 case UTRACE_DLCLOSE_STOP:
1460 printf("dlclose(%p) finished\n", ut->handle);
1462 case UTRACE_LOAD_OBJECT:
1463 printf("RTLD: loaded %p @ %p - %p (%s)\n", ut->handle,
1464 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
1467 case UTRACE_UNLOAD_OBJECT:
1468 printf("RTLD: unloaded %p @ %p - %p (%s)\n", ut->handle,
1469 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
1472 case UTRACE_ADD_RUNDEP:
1473 parent = ut->mapbase;
1474 printf("RTLD: %p now depends on %p (%s, %d)\n", parent,
1475 ut->handle, ut->name, ut->refcnt);
1477 case UTRACE_PRELOAD_FINISHED:
1478 printf("RTLD: LD_PRELOAD finished\n");
1480 case UTRACE_INIT_CALL:
1481 printf("RTLD: init %p for %p (%s)\n", ut->mapbase, ut->handle,
1484 case UTRACE_FINI_CALL:
1485 printf("RTLD: fini %p for %p (%s)\n", ut->mapbase, ut->handle,
1491 printf("RTLD: %d ", len);
1494 printf(" %d", *p++);
1496 printf(" %02x", *p++);
1501 struct utrace_malloc {
1508 ktruser_malloc(unsigned char *p)
1510 struct utrace_malloc *ut = (struct utrace_malloc *)p;
1512 if (ut->p == (void *)(intptr_t)(-1))
1513 printf("malloc_init()\n");
1514 else if (ut->s == 0)
1515 printf("free(%p)\n", ut->p);
1516 else if (ut->p == NULL)
1517 printf("%p = malloc(%zu)\n", ut->r, ut->s);
1519 printf("%p = realloc(%p, %zu)\n", ut->r, ut->p, ut->s);
1523 ktruser(int len, unsigned char *p)
1526 if (len >= 8 && bcmp(p, "RTLD", 4) == 0) {
1527 ktruser_rtld(len, p);
1531 if (len == sizeof(struct utrace_malloc)) {
1539 printf(" %d", *p++);
1541 printf(" %02x", *p++);
1546 ktrcaprights(cap_rights_t *rightsp)
1549 printf("cap_rights_t ");
1555 ktrsockaddr(struct sockaddr *sa)
1558 TODO: Support additional address families
1559 #include <netnatm/natm.h>
1560 struct sockaddr_natm *natm;
1561 #include <netsmb/netbios.h>
1562 struct sockaddr_nb *nb;
1567 * note: ktrstruct() has already verified that sa points to a
1568 * buffer at least sizeof(struct sockaddr) bytes long and exactly
1569 * sa->sa_len bytes long.
1571 printf("struct sockaddr { ");
1572 sockfamilyname(sa->sa_family);
1575 #define check_sockaddr_len(n) \
1576 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
1577 printf("invalid"); \
1581 switch(sa->sa_family) {
1583 struct sockaddr_in sa_in;
1585 memset(&sa_in, 0, sizeof(sa_in));
1586 memcpy(&sa_in, sa, sa->sa_len);
1587 check_sockaddr_len(in);
1588 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1589 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1593 case AF_APPLETALK: {
1594 struct sockaddr_at sa_at;
1595 struct netrange *nr;
1597 memset(&sa_at, 0, sizeof(sa_at));
1598 memcpy(&sa_at, sa, sa->sa_len);
1599 check_sockaddr_len(at);
1600 nr = &sa_at.sat_range.r_netrange;
1601 printf("%d.%d, %d-%d, %d", ntohs(sa_at.sat_addr.s_net),
1602 sa_at.sat_addr.s_node, ntohs(nr->nr_firstnet),
1603 ntohs(nr->nr_lastnet), nr->nr_phase);
1608 struct sockaddr_in6 sa_in6;
1610 memset(&sa_in6, 0, sizeof(sa_in6));
1611 memcpy(&sa_in6, sa, sa->sa_len);
1612 check_sockaddr_len(in6);
1613 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1614 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1615 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1620 struct sockaddr_ipx sa_ipx;
1622 memset(&sa_ipx, 0, sizeof(sa_ipx));
1623 memcpy(&sa_ipx, sa, sa->sa_len);
1624 check_sockaddr_len(ipx);
1625 /* XXX wish we had ipx_ntop */
1626 printf("%s", ipx_ntoa(sa_ipx.sipx_addr));
1632 struct sockaddr_un sa_un;
1634 memset(&sa_un, 0, sizeof(sa_un));
1635 memcpy(&sa_un, sa, sa->sa_len);
1636 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1640 printf("unknown address family");
1646 ktrstat(struct stat *statp)
1648 char mode[12], timestr[PATH_MAX + 4];
1654 * note: ktrstruct() has already verified that statp points to a
1655 * buffer exactly sizeof(struct stat) bytes long.
1657 printf("struct stat {");
1658 printf("dev=%ju, ino=%ju, ",
1659 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1661 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1663 strmode(statp->st_mode, mode);
1664 printf("mode=%s, ", mode);
1666 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1667 if (resolv == 0 || (pwd = getpwuid(statp->st_uid)) == NULL)
1668 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1670 printf("uid=\"%s\", ", pwd->pw_name);
1671 if (resolv == 0 || (grp = getgrgid(statp->st_gid)) == NULL)
1672 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1674 printf("gid=\"%s\", ", grp->gr_name);
1675 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1678 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1680 tm = localtime(&statp->st_atim.tv_sec);
1681 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1682 printf("\"%s\"", timestr);
1684 if (statp->st_atim.tv_nsec != 0)
1685 printf(".%09ld, ", statp->st_atim.tv_nsec);
1690 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1692 tm = localtime(&statp->st_mtim.tv_sec);
1693 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1694 printf("\"%s\"", timestr);
1696 if (statp->st_mtim.tv_nsec != 0)
1697 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1702 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1704 tm = localtime(&statp->st_ctim.tv_sec);
1705 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1706 printf("\"%s\"", timestr);
1708 if (statp->st_ctim.tv_nsec != 0)
1709 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1712 printf("birthtime=");
1714 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1716 tm = localtime(&statp->st_birthtim.tv_sec);
1717 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1718 printf("\"%s\"", timestr);
1720 if (statp->st_birthtim.tv_nsec != 0)
1721 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1724 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1725 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1726 (intmax_t)statp->st_blocks, statp->st_flags);
1731 ktrstruct(char *buf, size_t buflen)
1734 size_t namelen, datalen;
1736 cap_rights_t rights;
1738 struct sockaddr_storage ss;
1740 for (name = buf, namelen = 0;
1741 namelen < buflen && name[namelen] != '\0';
1744 if (namelen == buflen)
1746 if (name[namelen] != '\0')
1748 data = buf + namelen + 1;
1749 datalen = buflen - namelen - 1;
1753 for (i = 0; i < (int)namelen; ++i)
1754 if (!isalpha(name[i]))
1756 if (strcmp(name, "caprights") == 0) {
1757 if (datalen != sizeof(cap_rights_t))
1759 memcpy(&rights, data, datalen);
1760 ktrcaprights(&rights);
1761 } else if (strcmp(name, "stat") == 0) {
1762 if (datalen != sizeof(struct stat))
1764 memcpy(&sb, data, datalen);
1766 } else if (strcmp(name, "sockaddr") == 0) {
1767 if (datalen > sizeof(ss))
1769 memcpy(&ss, data, datalen);
1770 if (datalen != ss.ss_len)
1772 ktrsockaddr((struct sockaddr *)&ss);
1774 printf("unknown structure\n");
1778 printf("invalid record\n");
1782 ktrcapfail(struct ktr_cap_fail *ktr)
1784 switch (ktr->cap_type) {
1785 case CAPFAIL_NOTCAPABLE:
1786 /* operation on fd with insufficient capabilities */
1787 printf("operation requires ");
1788 capname(&ktr->cap_needed);
1789 printf(", process holds ");
1790 capname(&ktr->cap_held);
1792 case CAPFAIL_INCREASE:
1793 /* requested more capabilities than fd already has */
1794 printf("attempt to increase capabilities from ");
1795 capname(&ktr->cap_held);
1797 capname(&ktr->cap_needed);
1799 case CAPFAIL_SYSCALL:
1800 /* called restricted syscall */
1801 printf("disallowed system call");
1803 case CAPFAIL_LOOKUP:
1804 /* used ".." in strict-relative mode */
1805 printf("restricted VFS lookup");
1808 printf("unknown capability failure: ");
1809 capname(&ktr->cap_needed);
1811 capname(&ktr->cap_held);
1818 ktrfault(struct ktr_fault *ktr)
1821 printf("0x%jx ", ktr->vaddr);
1822 vmprotname(ktr->type);
1827 ktrfaultend(struct ktr_faultend *ktr)
1830 vmresultname(ktr->result);
1834 #if defined(__amd64__) || defined(__i386__)
1836 linux_ktrsyscall(struct ktr_syscall *ktr)
1838 int narg = ktr->ktr_narg;
1841 if (ktr->ktr_code >= nlinux_syscalls || ktr->ktr_code < 0)
1842 printf("[%d]", ktr->ktr_code);
1844 printf("%s", linux_syscallnames[ktr->ktr_code]);
1845 ip = &ktr->ktr_args[0];
1849 print_number(ip, narg, c);
1856 linux_ktrsysret(struct ktr_sysret *ktr)
1858 register_t ret = ktr->ktr_retval;
1859 int error = ktr->ktr_error;
1860 int code = ktr->ktr_code;
1862 if (code >= nlinux_syscalls || code < 0)
1863 printf("[%d] ", code);
1865 printf("%s ", linux_syscallnames[code]);
1869 printf("%ld", (long)ret);
1870 if (ret < 0 || ret > 9)
1871 printf("/%#lx", (unsigned long)ret);
1874 printf("%ld", (long)ret);
1876 printf("%#lx", (unsigned long)ret);
1878 } else if (error == ERESTART)
1880 else if (error == EJUSTRETURN)
1881 printf("JUSTRETURN");
1883 if (ktr->ktr_error <= ELAST + 1)
1884 error = abs(bsd_to_linux_errno[ktr->ktr_error]);
1887 printf("-1 errno %d", error);
1889 printf(" %s", strerror(ktr->ktr_error));
1898 fprintf(stderr, "usage: kdump [-dEnlHRrsTA] [-f trfile] "
1899 "[-m maxdata] [-p pid] [-t trstr]\n");