Annotation of src/usr.bin/kdump/kdump.c, Revision 1.34
1.34 ! tedu 1: /* $OpenBSD: kdump.c,v 1.33 2006/05/11 07:13:17 tedu Exp $ */
1.4 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1988, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.21 millert 15: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: #ifndef lint
1.32 tedu 33: static const char copyright[] =
1.1 deraadt 34: "@(#) Copyright (c) 1988, 1993\n\
35: The Regents of the University of California. All rights reserved.\n";
36: #endif /* not lint */
37:
38: #ifndef lint
39: #if 0
40: static char sccsid[] = "@(#)kdump.c 8.4 (Berkeley) 4/28/95";
41: #endif
1.34 ! tedu 42: static const char rcsid[] = "$OpenBSD: kdump.c,v 1.33 2006/05/11 07:13:17 tedu Exp $";
1.1 deraadt 43: #endif /* not lint */
44:
45: #include <sys/param.h>
46: #include <sys/time.h>
47: #include <sys/uio.h>
48: #include <sys/ktrace.h>
49: #include <sys/ioctl.h>
50: #include <sys/ptrace.h>
1.28 deraadt 51: #include <sys/sysctl.h>
1.1 deraadt 52: #define _KERNEL
53: #include <sys/errno.h>
54: #undef _KERNEL
55:
1.33 tedu 56: #include <ctype.h>
1.1 deraadt 57: #include <err.h>
58: #include <signal.h>
59: #include <stdio.h>
60: #include <stdlib.h>
61: #include <string.h>
62: #include <unistd.h>
63: #include <vis.h>
64:
65: #include "ktrace.h"
1.22 deraadt 66: #include "kdump.h"
1.12 espie 67: #include "extern.h"
1.1 deraadt 68:
1.31 tedu 69: int timestamp, decimal, iohex, fancy = 1, tail, maxdata;
1.1 deraadt 70: char *tracefile = DEF_TRACEFILE;
71: struct ktr_header ktr_header;
1.17 deraadt 72: pid_t pid = -1;
1.1 deraadt 73:
74: #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
75:
76: #include <sys/syscall.h>
77:
1.25 mickey 78: #include <compat/bsdos/bsdos_syscall.h>
79: #include <compat/freebsd/freebsd_syscall.h>
80: #include <compat/netbsd/netbsd_syscall.h>
1.26 deraadt 81: #if defined(__hppa__) || defined(__m68k__)
1.25 mickey 82: #include <compat/hpux/hpux_syscall.h>
1.26 deraadt 83: #endif
1.25 mickey 84: #include <compat/ibcs2/ibcs2_syscall.h>
85: #include <compat/linux/linux_syscall.h>
86: #include <compat/osf1/osf1_syscall.h>
87: #include <compat/sunos/sunos_syscall.h>
88: #include <compat/svr4/svr4_syscall.h>
89: #include <compat/ultrix/ultrix_syscall.h>
1.1 deraadt 90:
91: #define KTRACE
1.19 mickey 92: #define PTRACE
1.7 deraadt 93: #define NFSCLIENT
94: #define NFSSERVER
95: #define SYSVSEM
96: #define SYSVMSG
97: #define SYSVSHM
98: #define LFS
1.30 miod 99: #define RTHREADS
1.25 mickey 100: #include <kern/syscalls.c>
1.1 deraadt 101:
1.25 mickey 102: #include <compat/bsdos/bsdos_syscalls.c>
103: #include <compat/freebsd/freebsd_syscalls.c>
104: #include <compat/netbsd/netbsd_syscalls.c>
1.26 deraadt 105: #if defined(__hppa__) || defined(__m68k__)
1.25 mickey 106: #include <compat/hpux/hpux_syscalls.c>
1.26 deraadt 107: #endif
1.25 mickey 108: #include <compat/ibcs2/ibcs2_syscalls.c>
109: #include <compat/linux/linux_syscalls.c>
110: #include <compat/osf1/osf1_syscalls.c>
111: #include <compat/sunos/sunos_syscalls.c>
112: #include <compat/svr4/svr4_syscalls.c>
113: #include <compat/ultrix/ultrix_syscalls.c>
1.1 deraadt 114: #undef KTRACE
1.19 mickey 115: #undef PTRACE
1.7 deraadt 116: #undef NFSCLIENT
117: #undef NFSSERVER
118: #undef SYSVSEM
119: #undef SYSVMSG
120: #undef SYSVSHM
121: #undef LFS
1.30 miod 122: #undef RTHREADS
1.1 deraadt 123:
124: struct emulation {
125: char *name; /* Emulation name */
126: char **sysnames; /* Array of system call names */
127: int nsysnames; /* Number of */
128: };
129:
130: static struct emulation emulations[] = {
1.9 deraadt 131: { "native", syscallnames, SYS_MAXSYSCALL },
1.26 deraadt 132: #if defined(__hppa__) || defined(__m68k__)
1.9 deraadt 133: { "hpux", hpux_syscallnames, HPUX_SYS_MAXSYSCALL },
1.26 deraadt 134: #endif
1.9 deraadt 135: { "ibcs2", ibcs2_syscallnames, IBCS2_SYS_MAXSYSCALL },
136: { "linux", linux_syscallnames, LINUX_SYS_MAXSYSCALL },
137: { "osf1", osf1_syscallnames, OSF1_SYS_MAXSYSCALL },
138: { "sunos", sunos_syscallnames, SUNOS_SYS_MAXSYSCALL },
139: { "svr4", svr4_syscallnames, SVR4_SYS_MAXSYSCALL },
140: { "ultrix", ultrix_syscallnames, ULTRIX_SYS_MAXSYSCALL },
141: { "bsdos", bsdos_syscallnames, BSDOS_SYS_MAXSYSCALL },
142: { "freebsd", freebsd_syscallnames, FREEBSD_SYS_MAXSYSCALL },
1.10 kstailey 143: { "netbsd", netbsd_syscallnames, NETBSD_SYS_MAXSYSCALL },
1.9 deraadt 144: { NULL, NULL, NULL }
1.1 deraadt 145: };
146:
147: struct emulation *current;
148:
149:
150: static char *ptrace_ops[] = {
151: "PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
152: "PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
1.15 art 153: "PT_KILL", "PT_ATTACH", "PT_DETACH", "PT_IO",
1.1 deraadt 154: };
155:
1.13 millert 156: static int fread_tail(void *, int, int);
157: static void dumpheader(struct ktr_header *);
158: static void ktrcsw(struct ktr_csw *);
159: static void ktremul(char *, int);
160: static void ktrgenio(struct ktr_genio *, int);
161: static void ktrnamei(const char *, int);
162: static void ktrpsig(struct ktr_psig *);
163: static void ktrsyscall(struct ktr_syscall *);
164: static void ktrsysret(struct ktr_sysret *);
165: static void setemul(const char *);
166: static void usage(void);
1.12 espie 167:
1.1 deraadt 168: int
1.17 deraadt 169: main(int argc, char *argv[])
1.1 deraadt 170: {
1.17 deraadt 171: int ch, ktrlen, size, silent;
172: int trpoints = ALL_POINTS;
1.12 espie 173: void *m;
1.1 deraadt 174:
1.3 deraadt 175: current = &emulations[0]; /* native */
1.1 deraadt 176:
1.31 tedu 177: while ((ch = getopt(argc, argv, "e:f:dlm:nRp:Tt:xX")) != -1)
1.1 deraadt 178: switch (ch) {
179: case 'e':
180: setemul(optarg);
181: break;
182: case 'f':
183: tracefile = optarg;
184: break;
185: case 'd':
186: decimal = 1;
187: break;
188: case 'l':
189: tail = 1;
190: break;
191: case 'm':
192: maxdata = atoi(optarg);
193: break;
194: case 'n':
195: fancy = 0;
196: break;
1.17 deraadt 197: case 'p':
198: pid = atoi(optarg);
199: break;
1.1 deraadt 200: case 'R':
201: timestamp = 2; /* relative timestamp */
202: break;
203: case 'T':
204: timestamp = 1;
205: break;
206: case 't':
207: trpoints = getpoints(optarg);
208: if (trpoints < 0)
209: errx(1, "unknown trace point in %s", optarg);
210: break;
1.31 tedu 211: case 'x':
212: iohex = 1;
213: break;
214: case 'X':
215: iohex = 2;
216: break;
1.1 deraadt 217: default:
218: usage();
219: }
1.5 deraadt 220: if (argc > optind)
1.1 deraadt 221: usage();
222:
223: m = (void *)malloc(size = 1025);
224: if (m == NULL)
225: errx(1, "%s", strerror(ENOMEM));
226: if (!freopen(tracefile, "r", stdin))
227: err(1, "%s", tracefile);
228: while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
1.17 deraadt 229: silent = 0;
230: if (pid != -1 && pid != ktr_header.ktr_pid)
231: silent = 1;
232: if (silent == 0 && trpoints & (1<<ktr_header.ktr_type))
1.1 deraadt 233: dumpheader(&ktr_header);
234: if ((ktrlen = ktr_header.ktr_len) < 0)
235: errx(1, "bogus length 0x%x", ktrlen);
236: if (ktrlen > size) {
1.23 tedu 237: void *newm;
238:
239: newm = realloc(m, ktrlen+1);
240: if (newm == NULL)
1.1 deraadt 241: errx(1, "%s", strerror(ENOMEM));
1.23 tedu 242: m = newm;
1.1 deraadt 243: size = ktrlen;
244: }
245: if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
246: errx(1, "data too short");
1.17 deraadt 247: if (silent)
248: continue;
1.1 deraadt 249: if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
250: continue;
251: switch (ktr_header.ktr_type) {
252: case KTR_SYSCALL:
253: ktrsyscall((struct ktr_syscall *)m);
254: break;
255: case KTR_SYSRET:
256: ktrsysret((struct ktr_sysret *)m);
257: break;
258: case KTR_NAMEI:
259: ktrnamei(m, ktrlen);
260: break;
261: case KTR_GENIO:
262: ktrgenio((struct ktr_genio *)m, ktrlen);
263: break;
264: case KTR_PSIG:
265: ktrpsig((struct ktr_psig *)m);
266: break;
267: case KTR_CSW:
268: ktrcsw((struct ktr_csw *)m);
269: break;
270: case KTR_EMUL:
271: ktremul(m, ktrlen);
272: break;
273: }
274: if (tail)
275: (void)fflush(stdout);
276: }
1.12 espie 277: exit(0);
1.1 deraadt 278: }
279:
1.12 espie 280: static int
1.17 deraadt 281: fread_tail(void *buf, int size, int num)
1.1 deraadt 282: {
283: int i;
284:
285: while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
286: (void)sleep(1);
287: clearerr(stdin);
288: }
289: return (i);
290: }
291:
1.12 espie 292: static void
1.17 deraadt 293: dumpheader(struct ktr_header *kth)
1.1 deraadt 294: {
1.17 deraadt 295: static struct timeval prevtime;
1.1 deraadt 296: char unknown[64], *type;
297: struct timeval temp;
298:
299: switch (kth->ktr_type) {
300: case KTR_SYSCALL:
301: type = "CALL";
302: break;
303: case KTR_SYSRET:
304: type = "RET ";
305: break;
306: case KTR_NAMEI:
307: type = "NAMI";
308: break;
309: case KTR_GENIO:
310: type = "GIO ";
311: break;
312: case KTR_PSIG:
313: type = "PSIG";
314: break;
315: case KTR_CSW:
316: type = "CSW";
317: break;
318: case KTR_EMUL:
319: type = "EMUL";
320: break;
321: default:
1.17 deraadt 322: (void)snprintf(unknown, sizeof unknown, "UNKNOWN(%d)",
323: kth->ktr_type);
1.1 deraadt 324: type = unknown;
325: }
326:
1.16 mpech 327: (void)printf("%6ld %-8.*s ", (long)kth->ktr_pid, MAXCOMLEN,
328: kth->ktr_comm);
1.1 deraadt 329: if (timestamp) {
330: if (timestamp == 2) {
331: timersub(&kth->ktr_time, &prevtime, &temp);
332: prevtime = kth->ktr_time;
333: } else
334: temp = kth->ktr_time;
335: (void)printf("%ld.%06ld ", temp.tv_sec, temp.tv_usec);
336: }
337: (void)printf("%s ", type);
338: }
339:
1.12 espie 340: static void
1.17 deraadt 341: ioctldecode(u_long cmd)
1.2 deraadt 342: {
343: char dirbuf[4], *dir = dirbuf;
344:
1.6 deraadt 345: if (cmd & IOC_IN)
346: *dir++ = 'W';
1.2 deraadt 347: if (cmd & IOC_OUT)
348: *dir++ = 'R';
349: *dir = '\0';
350:
1.33 tedu 351: printf(decimal ? ",_IO%s('%c',%lu" : ",_IO%s('%c',%#lx",
352: dirbuf, (int)((cmd >> 8) & 0xff), cmd & 0xff);
1.2 deraadt 353: if ((cmd & IOC_VOID) == 0)
1.34 ! tedu 354: printf(decimal ? ",%lu)" : ",%#lx)", (cmd >> 16) & 0xff);
1.2 deraadt 355: else
356: printf(")");
357: }
1.1 deraadt 358:
1.12 espie 359: static void
1.17 deraadt 360: ktrsyscall(struct ktr_syscall *ktr)
1.1 deraadt 361: {
1.12 espie 362: int argsize = ktr->ktr_argsize;
363: register_t *ap;
1.1 deraadt 364:
365: if (ktr->ktr_code >= current->nsysnames || ktr->ktr_code < 0)
366: (void)printf("[%d]", ktr->ktr_code);
367: else
368: (void)printf("%s", current->sysnames[ktr->ktr_code]);
369: ap = (register_t *)((char *)ktr + sizeof(struct ktr_syscall));
1.27 mickey 370: (void)putchar('(');
1.1 deraadt 371: if (argsize) {
1.27 mickey 372: char c = '\0';
1.1 deraadt 373: if (fancy) {
374: if (ktr->ktr_code == SYS_ioctl) {
1.12 espie 375: const char *cp;
1.17 deraadt 376:
1.1 deraadt 377: if (decimal)
1.27 mickey 378: (void)printf("%ld", (long)*ap);
1.1 deraadt 379: else
1.27 mickey 380: (void)printf("%#lx", (long)*ap);
1.1 deraadt 381: ap++;
382: argsize -= sizeof(register_t);
383: if ((cp = ioctlname(*ap)) != NULL)
384: (void)printf(",%s", cp);
1.2 deraadt 385: else
386: ioctldecode(*ap);
1.1 deraadt 387: c = ',';
388: ap++;
389: argsize -= sizeof(register_t);
1.27 mickey 390: } else if (ktr->ktr_code == SYS___sysctl) {
391: int *np, n;
392:
393: n = ap[1];
1.28 deraadt 394: if (n > CTL_MAXNAME)
395: n = CTL_MAXNAME;
1.27 mickey 396: np = (int *)(ap + 6);
397: for (; n--; np++) {
398: if (c)
399: putchar(c);
400: printf("%d", *np);
401: c = '.';
402: }
403:
404: c = ',';
405: ap += 2;
406: argsize -= 2 * sizeof(register_t);
1.1 deraadt 407: } else if (ktr->ktr_code == SYS_ptrace) {
1.24 miod 408: if (*ap >= 0 && *ap <
1.1 deraadt 409: sizeof(ptrace_ops) / sizeof(ptrace_ops[0]))
1.27 mickey 410: (void)printf("%s", ptrace_ops[*ap]);
1.24 miod 411: else switch(*ap) {
412: #ifdef PT_GETFPREGS
413: case PT_GETFPREGS:
1.27 mickey 414: (void)printf("PT_GETFPREGS");
1.24 miod 415: break;
416: #endif
417: case PT_GETREGS:
1.27 mickey 418: (void)printf("PT_GETREGS");
1.24 miod 419: break;
420: #ifdef PT_SETFPREGS
421: case PT_SETFPREGS:
1.27 mickey 422: (void)printf("PT_SETFPREGS");
1.24 miod 423: break;
424: #endif
425: case PT_SETREGS:
1.27 mickey 426: (void)printf("PT_SETREGS");
1.24 miod 427: break;
428: #ifdef PT_STEP
429: case PT_STEP:
1.27 mickey 430: (void)printf("PT_STEP");
1.24 miod 431: break;
432: #endif
433: #ifdef PT_WCOOKIE
434: case PT_WCOOKIE:
1.27 mickey 435: (void)printf("PT_WCOOKIE");
1.24 miod 436: break;
437: #endif
438: default:
1.27 mickey 439: (void)printf("%ld", (long)*ap);
1.24 miod 440: break;
441: }
1.1 deraadt 442: c = ',';
443: ap++;
444: argsize -= sizeof(register_t);
445: }
446: }
447: while (argsize) {
1.27 mickey 448: if (c)
449: putchar(c);
1.1 deraadt 450: if (decimal)
1.27 mickey 451: (void)printf("%ld", (long)*ap);
1.1 deraadt 452: else
1.27 mickey 453: (void)printf("%#lx", (long)*ap);
1.1 deraadt 454: c = ',';
455: ap++;
456: argsize -= sizeof(register_t);
457: }
458: }
1.27 mickey 459: (void)printf(")\n");
1.1 deraadt 460: }
461:
1.12 espie 462: static void
1.17 deraadt 463: ktrsysret(struct ktr_sysret *ktr)
1.1 deraadt 464: {
1.12 espie 465: int ret = ktr->ktr_retval;
466: int error = ktr->ktr_error;
467: int code = ktr->ktr_code;
1.1 deraadt 468:
469: if (code >= current->nsysnames || code < 0)
470: (void)printf("[%d] ", code);
471: else
472: (void)printf("%s ", current->sysnames[code]);
473:
474: if (error == 0) {
475: if (fancy) {
476: (void)printf("%d", ret);
477: if (ret < 0 || ret > 9)
478: (void)printf("/%#x", ret);
479: } else {
480: if (decimal)
481: (void)printf("%d", ret);
482: else
483: (void)printf("%#x", ret);
484: }
485: } else if (error == ERESTART)
486: (void)printf("RESTART");
487: else if (error == EJUSTRETURN)
488: (void)printf("JUSTRETURN");
489: else {
490: (void)printf("-1 errno %d", ktr->ktr_error);
491: if (fancy)
492: (void)printf(" %s", strerror(ktr->ktr_error));
493: }
494: (void)putchar('\n');
495: }
496:
1.12 espie 497: static void
1.17 deraadt 498: ktrnamei(const char *cp, int len)
1.1 deraadt 499: {
500: (void)printf("\"%.*s\"\n", len, cp);
501: }
502:
1.12 espie 503: static void
1.17 deraadt 504: ktremul(char *cp, int len)
1.1 deraadt 505: {
506: char name[1024];
507:
508: if (len >= sizeof(name))
509: errx(1, "Emulation name too long");
510:
511: strncpy(name, cp, len);
512: name[len] = '\0';
513: (void)printf("\"%s\"\n", name);
514:
515: setemul(name);
516: }
517:
1.12 espie 518: static void
1.17 deraadt 519: ktrgenio(struct ktr_genio *ktr, int len)
1.1 deraadt 520: {
1.32 tedu 521: unsigned char *dp = (unsigned char *)ktr + sizeof (struct ktr_genio);
1.31 tedu 522: int i, j, datalen = len - sizeof (struct ktr_genio);
1.12 espie 523: static int screenwidth = 0;
1.31 tedu 524: int col = 0, width, bpl;
1.32 tedu 525: unsigned char visbuf[5], *cp, c;
1.1 deraadt 526:
527: if (screenwidth == 0) {
528: struct winsize ws;
529:
530: if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
531: ws.ws_col > 8)
532: screenwidth = ws.ws_col;
533: else
534: screenwidth = 80;
535: }
536: printf("fd %d %s %d bytes\n", ktr->ktr_fd,
537: ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
538: if (maxdata && datalen > maxdata)
539: datalen = maxdata;
1.31 tedu 540: if (iohex && !datalen)
541: return;
542: if (iohex == 1) {
543: putchar('\t');
544: col = 8;
545: for (i = 0; i < datalen; i++) {
546: printf("%02x", dp[i] & 0xff);
547: col += 3;
548: if (i < datalen - 1) {
549: if (col + 3 > screenwidth) {
550: printf("\n\t");
551: col = 8;
552: } else
553: putchar(' ');
554: }
555: }
556: putchar('\n');
557: return;
558: }
559: if (iohex == 2) {
560: bpl = (screenwidth - 13)/4;
561: if (bpl <= 0)
562: bpl = 1;
563: for (i = 0; i < datalen; i += bpl) {
564: printf(" %04x: ", i);
565: for (j = 0; j < bpl; j++) {
566: if (i+j >= datalen)
567: printf(" ");
568: else
569: printf("%02x ", dp[i+j] & 0xff);
570: }
571: putchar(' ');
572: for (j = 0; j < bpl; j++) {
573: if (i+j >= datalen)
574: break;
575: c = dp[i+j];
576: if (!isprint(c))
577: c = '.';
578: putchar(c);
579: }
580: putchar('\n');
581: }
582: return;
583: }
1.1 deraadt 584: (void)printf(" \"");
585: col = 8;
586: for (; datalen > 0; datalen--, dp++) {
1.31 tedu 587: (void)vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1.1 deraadt 588: cp = visbuf;
1.17 deraadt 589:
1.1 deraadt 590: /*
591: * Keep track of printables and
592: * space chars (like fold(1)).
593: */
594: if (col == 0) {
595: (void)putchar('\t');
596: col = 8;
597: }
1.17 deraadt 598: switch (*cp) {
1.1 deraadt 599: case '\n':
600: col = 0;
601: (void)putchar('\n');
602: continue;
603: case '\t':
604: width = 8 - (col&07);
605: break;
606: default:
607: width = strlen(cp);
608: }
609: if (col + width > (screenwidth-2)) {
610: (void)printf("\\\n\t");
611: col = 8;
612: }
613: col += width;
614: do {
615: (void)putchar(*cp++);
616: } while (*cp);
617: }
618: if (col == 0)
619: (void)printf(" ");
620: (void)printf("\"\n");
621: }
622:
1.12 espie 623: static void
1.17 deraadt 624: ktrpsig(struct ktr_psig *psig)
1.1 deraadt 625: {
626: (void)printf("SIG%s ", sys_signame[psig->signo]);
627: if (psig->action == SIG_DFL)
1.14 deraadt 628: (void)printf("SIG_DFL code %d", psig->code);
1.1 deraadt 629: else
1.14 deraadt 630: (void)printf("caught handler=0x%lx mask=0x%x",
631: (u_long)psig->action, psig->mask);
632: switch (psig->signo) {
633: case SIGSEGV:
634: case SIGILL:
635: case SIGBUS:
636: case SIGFPE:
637: printf(" addr=%p trapno=%d", psig->si.si_addr,
638: psig->si.si_trapno);
639: break;
640: default:
641: break;
642: }
643: printf("\n");
1.1 deraadt 644: }
645:
1.12 espie 646: static void
1.17 deraadt 647: ktrcsw(struct ktr_csw *cs)
1.1 deraadt 648: {
649: (void)printf("%s %s\n", cs->out ? "stop" : "resume",
650: cs->user ? "user" : "kernel");
651: }
652:
1.12 espie 653: static void
1.17 deraadt 654: usage(void)
1.1 deraadt 655: {
656:
1.19 mickey 657: extern char *__progname;
658: fprintf(stderr, "usage: %s "
1.31 tedu 659: "[-dnlRTxX] [-e emulation] [-p pid] [-f trfile] [-m maxdata] "
1.20 deraadt 660: "[-t [ceinsw]]\n", __progname);
1.1 deraadt 661: exit(1);
662: }
663:
1.12 espie 664: static void
1.17 deraadt 665: setemul(const char *name)
1.1 deraadt 666: {
667: int i;
1.17 deraadt 668:
1.1 deraadt 669: for (i = 0; emulations[i].name != NULL; i++)
670: if (strcmp(emulations[i].name, name) == 0) {
671: current = &emulations[i];
672: return;
673: }
674: warnx("Emulation `%s' unknown", name);
675: }
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