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Add unifdef(1) to the bootstrap-tools.
[dragonfly.git] / usr.bin / kdump / kdump.c
blob868b5195e3762fbce55f67a7f90cfcf4e4a961da
1 /*-
2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#) Copyright (c) 1988, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)kdump.c 8.1 (Berkeley) 6/6/93
35 * $FreeBSD: src/usr.bin/kdump/kdump.c,v 1.29 2006/05/20 14:27:22 netchild Exp $
36 * $DragonFly: src/usr.bin/kdump/kdump.c,v 1.13 2008/10/16 01:52:32 swildner Exp $
37 */
38
39 #define _KERNEL_STRUCTURES
40
41 #include <sys/errno.h>
42 #include <sys/param.h>
43 #include <sys/errno.h>
44 #include <sys/time.h>
45 #include <sys/uio.h>
46 #include <sys/ktrace.h>
47 #include <sys/ioctl.h>
48 #include <sys/ptrace.h>
49 #include <err.h>
50 #include <locale.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55 #include <vis.h>
56 #include "ktrace.h"
57 #include "kdump_subr.h"
58
59 extern const char *ioctlname(u_long);
60
61 static int dumpheader(struct ktr_header *);
62 static int fread_tail(void *, int, int);
63 static void ktrcsw(struct ktr_csw *);
64 static void ktrgenio(struct ktr_genio *, int);
65 static void ktrnamei(char *, int);
66 static void ktrpsig(struct ktr_psig *);
67 static void ktrsyscall(struct ktr_syscall *);
68 static void ktrsysret(struct ktr_sysret *);
69 static void ktruser(int, unsigned char *);
70 static void ktruser_malloc(int, unsigned char *);
71 static void timevalfix(struct timeval *);
72 static void timevalsub(struct timeval *, struct timeval *);
73 static void usage(void);
74
75 int timestamp, decimal, fancy = 1, tail, maxdata = 64;
76 int fixedformat;
77 const char *tracefile = DEF_TRACEFILE;
78 struct ktr_header ktr_header;
79
80 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
81
82 int
83 main(int argc, char **argv)
84 {
85 int ch, col, ktrlen, size;
86 pid_t do_pid = -1;
87 void *m;
88 int trpoints = ALL_POINTS;
89 char *cp;
90
91 (void) setlocale(LC_CTYPE, "");
92
93 while ((ch = getopt(argc,argv,"f:djlm:np:RTt:")) != -1)
94 switch((char)ch) {
95 case 'f':
96 tracefile = optarg;
97 break;
98 case 'j':
99 fixedformat = 1;
100 break;
101 case 'd':
102 decimal = 1;
103 break;
104 case 'l':
105 tail = 1;
106 break;
107 case 'm':
108 maxdata = atoi(optarg);
109 break;
110 case 'n':
111 fancy = 0;
112 break;
113 case 'p':
114 do_pid = strtoul(optarg, &cp, 0);
115 if (*cp != 0)
116 errx(1,"invalid number %s", optarg);
117 break;
118 case 'R':
119 timestamp = 2; /* relative timestamp */
120 break;
121 case 'T':
122 timestamp = 1;
123 break;
124 case 't':
125 trpoints = getpoints(optarg);
126 if (trpoints < 0)
127 errx(1, "unknown trace point in %s", optarg);
128 break;
129 default:
130 usage();
131 }
132
133 if (argc > optind)
134 usage();
135
136 m = (void *)malloc(size = 1025);
137 if (m == NULL)
138 errx(1, "%s", strerror(ENOMEM));
139 if (!freopen(tracefile, "r", stdin))
140 err(1, "%s", tracefile);
141 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
142 if (trpoints & (1 << ktr_header.ktr_type) &&
143 (do_pid == -1 || ktr_header.ktr_pid == do_pid))
144 col = dumpheader(&ktr_header);
145 else
146 col = -1;
147 if ((ktrlen = ktr_header.ktr_len) < 0)
148 errx(1, "bogus length 0x%x", ktrlen);
149 if (ktrlen > size) {
150 m = (void *)realloc(m, ktrlen+1);
151 if (m == NULL)
152 errx(1, "%s", strerror(ENOMEM));
153 size = ktrlen;
154 }
155 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
156 errx(1, "data too short");
157 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
158 continue;
159 if (col == -1)
160 continue;
161 switch (ktr_header.ktr_type) {
162 case KTR_SYSCALL:
163 ktrsyscall((struct ktr_syscall *)m);
164 break;
165 case KTR_SYSRET:
166 ktrsysret((struct ktr_sysret *)m);
167 break;
168 case KTR_NAMEI:
169 ktrnamei(m, ktrlen);
170 break;
171 case KTR_GENIO:
172 ktrgenio((struct ktr_genio *)m, ktrlen);
173 break;
174 case KTR_PSIG:
175 ktrpsig((struct ktr_psig *)m);
176 break;
177 case KTR_CSW:
178 ktrcsw((struct ktr_csw *)m);
179 break;
180 case KTR_USER:
181 ktruser(ktrlen, m);
182 break;
183 }
184 if (tail)
185 (void)fflush(stdout);
186 }
187 exit(0);
188 }
189
190 static int
191 fread_tail(void *buf, int size, int num)
192 {
193 int i;
194
195 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
196 (void)sleep(1);
197 clearerr(stdin);
198 }
199 return (i);
200 }
201
202 static int
203 dumpheader(struct ktr_header *kth)
204 {
205 static char unknown[64];
206 static struct timeval prevtime, temp;
207 const char *type;
208 int col;
209
210 switch (kth->ktr_type) {
211 case KTR_SYSCALL:
212 type = "CALL";
213 break;
214 case KTR_SYSRET:
215 type = "RET ";
216 break;
217 case KTR_NAMEI:
218 type = "NAMI";
219 break;
220 case KTR_GENIO:
221 type = "GIO ";
222 break;
223 case KTR_PSIG:
224 type = "PSIG";
225 break;
226 case KTR_CSW:
227 type = "CSW";
228 break;
229 case KTR_USER:
230 type = "USER";
231 break;
232 default:
233 (void)sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
234 type = unknown;
235 }
236
237 if (kth->ktr_tid || (kth->ktr_flags & KTRH_THREADED) || fixedformat)
238 col = printf("%5d:%-4d", kth->ktr_pid, kth->ktr_tid);
239 else
240 col = printf("%5d", kth->ktr_pid);
241 col += printf(" %-8.*s ", MAXCOMLEN, kth->ktr_comm);
242 if (timestamp) {
243 if (timestamp == 2) {
244 temp = kth->ktr_time;
245 timevalsub(&kth->ktr_time, &prevtime);
246 prevtime = temp;
247 }
248 col += printf("%ld.%06ld ",
249 kth->ktr_time.tv_sec, kth->ktr_time.tv_usec);
250 }
251 col += printf("%s ", type);
252 return col;
253 }
254
255 #include <sys/syscall.h>
256 #define KTRACE
257 #include <sys/kern/syscalls.c>
258 #undef KTRACE
259 int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]);
260
261 static const char *ptrace_ops[] = {
262 "PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
263 "PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
264 "PT_KILL", "PT_STEP", "PT_ATTACH", "PT_DETACH",
265 };
266
267 static void
268 ktrsyscall(struct ktr_syscall *ktr)
269 {
270 int narg = ktr->ktr_narg;
271 register_t *ip;
272
273 if (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0)
274 (void)printf("[%d]", ktr->ktr_code);
275 else
276 (void)printf("%s", syscallnames[ktr->ktr_code]);
277 ip = &ktr->ktr_args[0];
278 if (narg) {
279 char c = '(';
280 if (fancy) {
281
282 #define print_number(i,n,c) do { \
283 if (decimal) \
284 (void)printf("%c%ld", c, (long)*i); \
285 else \
286 (void)printf("%c%#lx", c, (long)*i); \
287 i++; \
288 n--; \
289 c = ','; \
290 } while (0);
291
292 if (ktr->ktr_code == SYS_ioctl) {
293 const char *cp;
294 print_number(ip,narg,c);
295 if ((cp = ioctlname(*ip)) != NULL)
296 (void)printf(",%s", cp);
297 else {
298 if (decimal)
299 (void)printf(",%ld", (long)*ip);
300 else
301 (void)printf(",%#lx ", (long)*ip);
302 }
303 c = ',';
304 ip++;
305 narg--;
306 } else if (ktr->ktr_code == SYS_access) {
307 print_number(ip,narg,c);
308 (void)putchar(',');
309 accessmodename ((int)*ip);
310 ip++;
311 narg--;
312 } else if (ktr->ktr_code == SYS_open ||
313 ktr->ktr_code == SYS_mq_open) {
314 int flags;
315 int mode;
316 print_number(ip,narg,c);
317 flags = *ip;
318 mode = *++ip;
319 (void)putchar(',');
320 flagsandmodename (flags, mode, decimal);
321 ip++;
322 narg-=2;
323 } else if (ktr->ktr_code == SYS_wait4) {
324 print_number(ip,narg,c);
325 print_number(ip,narg,c);
326 (void)putchar(',');
327 wait4optname ((int)*ip);
328 ip++;
329 narg--;
330 } else if (ktr->ktr_code == SYS_chmod ||
331 ktr->ktr_code == SYS_fchmod ||
332 ktr->ktr_code == SYS_lchmod) {
333 print_number(ip,narg,c);
334 (void)putchar(',');
335 modename ((int)*ip);
336 ip++;
337 narg--;
338 } else if (ktr->ktr_code == SYS_mknod) {
339 print_number(ip,narg,c);
340 (void)putchar(',');
341 modename ((int)*ip);
342 ip++;
343 narg--;
344 } else if (ktr->ktr_code == SYS_getfsstat) {
345 print_number(ip,narg,c);
346 print_number(ip,narg,c);
347 (void)putchar(',');
348 getfsstatflagsname ((int)*ip);
349 ip++;
350 narg--;
351 } else if (ktr->ktr_code == SYS_mount) {
352 print_number(ip,narg,c);
353 print_number(ip,narg,c);
354 (void)putchar(',');
355 mountflagsname ((int)*ip);
356 ip++;
357 narg--;
358 } else if (ktr->ktr_code == SYS_unmount) {
359 print_number(ip,narg,c);
360 (void)putchar(',');
361 mountflagsname ((int)*ip);
362 ip++;
363 narg--;
364 } else if (ktr->ktr_code == SYS_recvmsg ||
365 ktr->ktr_code == SYS_sendmsg) {
366 print_number(ip,narg,c);
367 print_number(ip,narg,c);
368 (void)putchar(',');
369 sendrecvflagsname ((int)*ip);
370 ip++;
371 narg--;
372 } else if (ktr->ktr_code == SYS_recvfrom ||
373 ktr->ktr_code == SYS_sendto) {
374 print_number(ip,narg,c);
375 print_number(ip,narg,c);
376 print_number(ip,narg,c);
377 (void)putchar(',');
378 sendrecvflagsname ((int)*ip);
379 ip++;
380 narg--;
381 } else if (ktr->ktr_code == SYS_chflags ||
382 ktr->ktr_code == SYS_fchflags) {
383 print_number(ip,narg,c);
384 (void)putchar(',');
385 modename((int)*ip);
386 ip++;
387 narg--;
388 } else if (ktr->ktr_code == SYS_kill) {
389 print_number(ip,narg,c);
390 (void)putchar(',');
391 signame((int)*ip);
392 ip++;
393 narg--;
394 } else if (ktr->ktr_code == SYS_reboot) {
395 (void)putchar('(');
396 rebootoptname((int)*ip);
397 ip++;
398 narg--;
399 } else if (ktr->ktr_code == SYS_umask) {
400 (void)putchar('(');
401 modename((int)*ip);
402 ip++;
403 narg--;
404 } else if (ktr->ktr_code == SYS_msync) {
405 print_number(ip,narg,c);
406 print_number(ip,narg,c);
407 (void)putchar(',');
408 msyncflagsname((int)*ip);
409 ip++;
410 narg--;
411 } else if (ktr->ktr_code == SYS_mmap) {
412 print_number(ip,narg,c);
413 print_number(ip,narg,c);
414 (void)putchar(',');
415 mmapprotname ((int)*ip);
416 (void)putchar(',');
417 ip++;
418 narg--;
419 mmapflagsname ((int)*ip);
420 ip++;
421 narg--;
422 } else if (ktr->ktr_code == SYS_mprotect) {
423 print_number(ip,narg,c);
424 print_number(ip,narg,c);
425 (void)putchar(',');
426 mmapprotname ((int)*ip);
427 ip++;
428 narg--;
429 } else if (ktr->ktr_code == SYS_madvise) {
430 print_number(ip,narg,c);
431 print_number(ip,narg,c);
432 (void)putchar(',');
433 madvisebehavname((int)*ip);
434 ip++;
435 narg--;
436 } else if (ktr->ktr_code == SYS_setpriority) {
437 (void)putchar('(');
438 prioname((int)*ip);
439 ip++;
440 narg--;
441 c = ',';
442 print_number(ip,narg,c);
443 print_number(ip,narg,c);
444 } else if (ktr->ktr_code == SYS_fcntl) {
445 int cmd;
446 int arg;
447 print_number(ip,narg,c);
448 cmd = *ip;
449 arg = *++ip;
450 (void)putchar(',');
451 fcntlcmdname(cmd, arg, decimal);
452 ip++;
453 narg-=2;
454 } else if (ktr->ktr_code == SYS_socket) {
455 (void)putchar('(');
456 sockdomainname((int)*ip);
457 ip++;
458 narg--;
459 (void)putchar(',');
460 socktypename((int)*ip);
461 ip++;
462 narg--;
463 c = ',';
464 } else if (ktr->ktr_code == SYS_setsockopt ||
465 ktr->ktr_code == SYS_getsockopt) {
466 print_number(ip,narg,c);
467 (void)putchar(',');
468 sockoptlevelname((int)*ip, decimal);
469 ip++;
470 narg--;
471 (void)putchar(',');
472 sockoptname((int)*ip);
473 ip++;
474 narg--;
475 } else if (ktr->ktr_code == SYS_lseek) {
476 print_number(ip,narg,c);
477 /* Hidden 'pad' argument, not in lseek(2) */
478 print_number(ip,narg,c);
479 print_number(ip,narg,c);
480 (void)putchar(',');
481 whencename ((int)*ip);
482 ip++;
483 narg--;
484 } else if (ktr->ktr_code == SYS_flock) {
485 print_number(ip,narg,c);
486 (void)putchar(',');
487 flockname((int)*ip);
488 ip++;
489 narg--;
490 } else if (ktr->ktr_code == SYS_mkfifo ||
491 ktr->ktr_code == SYS_mkdir) {
492 print_number(ip,narg,c);
493 (void)putchar(',');
494 modename((int)*ip);
495 ip++;
496 narg--;
497 } else if (ktr->ktr_code == SYS_shutdown) {
498 print_number(ip,narg,c);
499 (void)putchar(',');
500 shutdownhowname((int)*ip);
501 ip++;
502 narg--;
503 } else if (ktr->ktr_code == SYS_socketpair) {
504 (void)putchar('(');
505 sockdomainname((int)*ip);
506 ip++;
507 narg--;
508 (void)putchar(',');
509 socktypename((int)*ip);
510 ip++;
511 narg--;
512 c = ',';
513 } else if (ktr->ktr_code == SYS_getrlimit ||
514 ktr->ktr_code == SYS_setrlimit) {
515 (void)putchar('(');
516 rlimitname((int)*ip);
517 ip++;
518 narg--;
519 c = ',';
520 } else if (ktr->ktr_code == SYS_quotactl) {
521 print_number(ip,narg,c);
522 quotactlname((int)*ip);
523 ip++;
524 narg--;
525 c = ',';
526 } else if (ktr->ktr_code == SYS_rtprio) {
527 (void)putchar('(');
528 rtprioname((int)*ip);
529 ip++;
530 narg--;
531 c = ',';
532 } else if (ktr->ktr_code == SYS___semctl) {
533 print_number(ip,narg,c);
534 print_number(ip,narg,c);
535 semctlname((int)*ip);
536 ip++;
537 narg--;
538 } else if (ktr->ktr_code == SYS_semget) {
539 print_number(ip,narg,c);
540 print_number(ip,narg,c);
541 semgetname((int)*ip);
542 ip++;
543 narg--;
544 } else if (ktr->ktr_code == SYS_msgctl) {
545 print_number(ip,narg,c);
546 shmctlname((int)*ip);
547 ip++;
548 narg--;
549 } else if (ktr->ktr_code == SYS_shmat) {
550 print_number(ip,narg,c);
551 print_number(ip,narg,c);
552 shmatname((int)*ip);
553 ip++;
554 narg--;
555 } else if (ktr->ktr_code == SYS_shmctl) {
556 print_number(ip,narg,c);
557 shmctlname((int)*ip);
558 ip++;
559 narg--;
560 } else if (ktr->ktr_code == SYS_minherit) {
561 print_number(ip,narg,c);
562 print_number(ip,narg,c);
563 minheritname((int)*ip);
564 ip++;
565 narg--;
566 } else if (ktr->ktr_code == SYS_rfork) {
567 (void)putchar('(');
568 rforkname((int)*ip);
569 ip++;
570 narg--;
571 c = ',';
572 } else if (ktr->ktr_code == SYS_lio_listio) {
573 (void)putchar('(');
574 lio_listioname((int)*ip);
575 ip++;
576 narg--;
577 c = ',';
578 } else if (ktr->ktr_code == SYS_mlockall) {
579 (void)putchar('(');
580 mlockallname((int)*ip);
581 ip++;
582 narg--;
583 } else if (ktr->ktr_code == SYS_sched_setscheduler) {
584 print_number(ip,narg,c);
585 schedpolicyname((int)*ip);
586 ip++;
587 narg--;
588 } else if (ktr->ktr_code == SYS_sched_get_priority_max ||
589 ktr->ktr_code == SYS_sched_get_priority_min) {
590 (void)putchar('(');
591 schedpolicyname((int)*ip);
592 ip++;
593 narg--;
594 } else if (ktr->ktr_code == SYS_sendfile) {
595 print_number(ip,narg,c);
596 print_number(ip,narg,c);
597 print_number(ip,narg,c);
598 print_number(ip,narg,c);
599 print_number(ip,narg,c);
600 print_number(ip,narg,c);
601 sendfileflagsname((int)*ip);
602 ip++;
603 narg--;
604 } else if (ktr->ktr_code == SYS_kldsym) {
605 print_number(ip,narg,c);
606 kldsymcmdname((int)*ip);
607 ip++;
608 narg--;
609 } else if (ktr->ktr_code == SYS_sigprocmask) {
610 (void)putchar('(');
611 sigprocmaskhowname((int)*ip);
612 ip++;
613 narg--;
614 c = ',';
615 } else if (ktr->ktr_code == SYS___acl_get_file ||
616 ktr->ktr_code == SYS___acl_set_file ||
617 ktr->ktr_code == SYS___acl_get_fd ||
618 ktr->ktr_code == SYS___acl_set_fd ||
619 ktr->ktr_code == SYS___acl_delete_file ||
620 ktr->ktr_code == SYS___acl_delete_fd ||
621 ktr->ktr_code == SYS___acl_aclcheck_file ||
622 ktr->ktr_code == SYS___acl_aclcheck_fd) {
623 print_number(ip,narg,c);
624 acltypename((int)*ip);
625 ip++;
626 narg--;
627 } else if (ktr->ktr_code == SYS_sigaction) {
628 (void)putchar('(');
629 signame((int)*ip);
630 ip++;
631 narg--;
632 c = ',';
633 } else if (ktr->ktr_code == SYS_extattrctl) {
634 print_number(ip,narg,c);
635 extattrctlname((int)*ip);
636 ip++;
637 narg--;
638 } else if (ktr->ktr_code == SYS_ptrace) {
639 if (*ip < (register_t)(sizeof(ptrace_ops) /
640 sizeof(ptrace_ops[0])) && *ip >= 0)
641 (void)printf("(%s", ptrace_ops[*ip]);
642 #ifdef PT_GETREGS
643 else if (*ip == PT_GETREGS)
644 (void)printf("(%s", "PT_GETREGS");
645 #endif
646 #ifdef PT_SETREGS
647 else if (*ip == PT_SETREGS)
648 (void)printf("(%s", "PT_SETREGS");
649 #endif
650 #ifdef PT_GETFPREGS
651 else if (*ip == PT_GETFPREGS)
652 (void)printf("(%s", "PT_GETFPREGS");
653 #endif
654 #ifdef PT_SETFPREGS
655 else if (*ip == PT_SETFPREGS)
656 (void)printf("(%s", "PT_SETFPREGS");
657 #endif
658 #ifdef PT_GETDBREGS
659 else if (*ip == PT_GETDBREGS)
660 (void)printf("(%s", "PT_GETDBREGS");
661 #endif
662 #ifdef PT_SETDBREGS
663 else if (*ip == PT_SETDBREGS)
664 (void)printf("(%s", "PT_SETDBREGS");
665 #endif
666 else
667 (void)printf("(%ld", (long)*ip);
668 c = ',';
669 ip++;
670 narg--;
671 }
672 }
673 while (narg > 0) {
674 print_number(ip,narg,c);
675 }
676 (void)putchar(')');
677 }
678 (void)putchar('\n');
679 }
680
681 static void
682 ktrsysret(struct ktr_sysret *ktr)
683 {
684 register_t ret = ktr->ktr_retval;
685 int error = ktr->ktr_error;
686 int code = ktr->ktr_code;
687
688 if (code >= nsyscalls || code < 0)
689 (void)printf("[%d] ", code);
690 else
691 (void)printf("%s ", syscallnames[code]);
692
693 if (error == 0) {
694 if (fancy) {
695 (void)printf("%ld", (long)ret);
696 if (ret < 0 || ret > 9)
697 (void)printf("/%#lx", (long)ret);
698 } else {
699 if (decimal)
700 (void)printf("%ld", (long)ret);
701 else
702 (void)printf("%#lx", (long)ret);
703 }
704 } else if (error == ERESTART)
705 (void)printf("RESTART");
706 else if (error == EJUSTRETURN)
707 (void)printf("JUSTRETURN");
708 else {
709 (void)printf("-1 errno %d", ktr->ktr_error);
710 if (fancy)
711 (void)printf(" %s", strerror(ktr->ktr_error));
712 }
713 (void)putchar('\n');
714 }
715
716 static void
717 ktrnamei(char *cp, int len)
718 {
719 (void)printf("\"%.*s\"\n", len, cp);
720 }
721
722 static void
723 ktrgenio(struct ktr_genio *ktr, int len)
724 {
725 int datalen = len - sizeof (struct ktr_genio);
726 char *dp = (char *)ktr + sizeof (struct ktr_genio);
727 char *cp;
728 int col = 0;
729 int width;
730 char visbuf[5];
731 static int screenwidth = 0;
732
733 if (screenwidth == 0) {
734 struct winsize ws;
735
736 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
737 ws.ws_col > 8)
738 screenwidth = ws.ws_col;
739 else
740 screenwidth = 80;
741 }
742 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
743 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
744 datalen == 1 ? "" : "s");
745 if (maxdata && datalen > maxdata)
746 datalen = maxdata;
747 (void)printf(" \"");
748 col = 8;
749 for (;datalen > 0; datalen--, dp++) {
750 (void) vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
751 cp = visbuf;
752 /*
753 * Keep track of printables and
754 * space chars (like fold(1)).
755 */
756 if (col == 0) {
757 (void)putchar('\t');
758 col = 8;
759 }
760 switch(*cp) {
761 case '\n':
762 col = 0;
763 (void)putchar('\n');
764 continue;
765 case '\t':
766 width = 8 - (col&07);
767 break;
768 default:
769 width = strlen(cp);
770 }
771 if (col + width > (screenwidth-2)) {
772 (void)printf("\\\n\t");
773 col = 8;
774 }
775 col += width;
776 do {
777 (void)putchar(*cp++);
778 } while (*cp);
779 }
780 if (col == 0)
781 (void)printf(" ");
782 (void)printf("\"\n");
783 }
784
785 const char *signames[NSIG] = {
786 "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */
787 "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */
788 "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */
789 "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */
790 "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */
791 "USR2", NULL, /* 31 - 32 */
792 };
793
794 static void
795 ktrpsig(struct ktr_psig *psig)
796 {
797 (void)printf("SIG%s ", signames[psig->signo]);
798 if (psig->action == SIG_DFL)
799 (void)printf("SIG_DFL\n");
800 else
801 (void)printf("caught handler=0x%lx mask=0x%x code=0x%x\n",
802 (u_long)psig->action, psig->mask.__bits[0], psig->code);
803 }
804
805 static void
806 ktrcsw(struct ktr_csw *cs)
807 {
808 (void)printf("%s %s\n", cs->out ? "stop" : "resume",
809 cs->user ? "user" : "kernel");
810 }
811
812 struct utrace_malloc {
813 void *p;
814 size_t s;
815 void *r;
816 };
817
818 static void
819 ktruser_malloc(int len __unused, unsigned char *p)
820 {
821 struct utrace_malloc *ut = (struct utrace_malloc *)p;
822
823 if (ut->p == NULL) {
824 if (ut->s == 0 && ut->r == NULL)
825 printf("malloc_init()\n");
826 else
827 printf("%p = malloc(%zu)\n", ut->r, ut->s);
828 } else {
829 if (ut->s == 0)
830 printf("free(%p)\n", ut->p);
831 else
832 printf("%p = realloc(%p, %zu)\n", ut->r, ut->p, ut->s);
833 }
834 }
835
836 static void
837 ktruser(int len, unsigned char *p)
838 {
839 if (len == sizeof(struct utrace_malloc)) {
840 ktruser_malloc(len, p);
841 return;
842 }
843
844 (void)printf("%d ", len);
845 while (len--)
846 (void)printf(" %02x", *p++);
847 (void)printf("\n");
848 }
849
850 static void
851 usage(void)
852 {
853 (void)fprintf(stderr,
854 "usage: kdump [-dnlRT] [-f trfile] [-m maxdata] [-t [cnisuw]] [-p pid]\n");
855 exit(1);
856 }
857
858 static void
859 timevalsub(struct timeval *t1, struct timeval *t2)
860 {
861 t1->tv_sec -= t2->tv_sec;
862 t1->tv_usec -= t2->tv_usec;
863 timevalfix(t1);
864 }
865
866 static void
867 timevalfix(struct timeval *t1)
868 {
869 if (t1->tv_usec < 0) {
870 t1->tv_sec--;
871 t1->tv_usec += 1000000;
872 }
873 if (t1->tv_usec >= 1000000) {
874 t1->tv_sec++;
875 t1->tv_usec -= 1000000;
876 }
877 }
DragonFly BSD