[unix-history] / usr / src / usr.bin / kdump / kdump.c

/*-
 * Copyright (c) 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1988, 1993\n\
	The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)kdump.c	8.1 (Berkeley) 6/6/93";
#endif /* not lint */

#include <sys/param.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/ktrace.h>
#include <sys/ioctl.h>
#include <sys/ptrace.h>
#define KERNEL
#include <sys/errno.h>
#undef KERNEL
#include <vis.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ktrace.h"

int timestamp, decimal, fancy = 1, tail, maxdata;
char *tracefile = DEF_TRACEFILE;
struct ktr_header ktr_header;

#define eqs(s1, s2)	(strcmp((s1), (s2)) == 0)

main(argc, argv)
	int argc;
	char *argv[];
{
	extern int optind;
	extern char *optarg;
	int ch, ktrlen, size;
	register void *m;
	int trpoints = ALL_POINTS;

	while ((ch = getopt(argc,argv,"f:dlm:nRTt:")) != EOF)
		switch((char)ch) {
		case 'f':
			tracefile = optarg;
			break;
		case 'd':
			decimal = 1;
			break;
		case 'l':
			tail = 1;
			break;
		case 'm':
			maxdata = atoi(optarg);
			break;
		case 'n':
			fancy = 0;
			break;
		case 'R':
			timestamp = 2;	/* relative timestamp */
			break;
		case 'T':
			timestamp = 1;
			break;
		case 't':
			trpoints = getpoints(optarg);
			if (trpoints < 0) {
				(void)fprintf(stderr,
				    "kdump: unknown trace point in %s\n",
				    optarg);
				exit(1);
			}
			break;
		default:
			usage();
		}
	argv += optind;
	argc -= optind;

	if (argc > 1)
		usage();

	m = (void *)malloc(size = 1025);
	if (m == NULL) {
		(void)fprintf(stderr, "kdump: %s.\n", strerror(ENOMEM));
		exit(1);
	}
	if (!freopen(tracefile, "r", stdin)) {
		(void)fprintf(stderr,
		    "kdump: %s: %s.\n", tracefile, strerror(errno));
		exit(1);
	}
	while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
		if (trpoints & (1<<ktr_header.ktr_type))
			dumpheader(&ktr_header);
		if ((ktrlen = ktr_header.ktr_len) < 0) {
			(void)fprintf(stderr,
			    "kdump: bogus length 0x%x\n", ktrlen);
			exit(1);
		}
		if (ktrlen > size) {
			m = (void *)realloc(m, ktrlen+1);
			if (m == NULL) {
				(void)fprintf(stderr,
				    "kdump: %s.\n", strerror(ENOMEM));
				exit(1);
			}
			size = ktrlen;
		}
		if (ktrlen && fread_tail(m, ktrlen, 1) == 0) {
			(void)fprintf(stderr, "kdump: data too short.\n");
			exit(1);
		}
		if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
			continue;
		switch (ktr_header.ktr_type) {
		case KTR_SYSCALL:
			ktrsyscall((struct ktr_syscall *)m);
			break;
		case KTR_SYSRET:
			ktrsysret((struct ktr_sysret *)m);
			break;
		case KTR_NAMEI:
			ktrnamei(m, ktrlen);
			break;
		case KTR_GENIO:
			ktrgenio((struct ktr_genio *)m, ktrlen);
			break;
		case KTR_PSIG:
			ktrpsig((struct ktr_psig *)m);
			break;
		case KTR_CSW:
			ktrcsw((struct ktr_csw *)m);
			break;
		}
		if (tail)
			(void)fflush(stdout);
	}
}

fread_tail(buf, size, num)
	char *buf;
	int num, size;
{
	int i;

	while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
		(void)sleep(1);
		clearerr(stdin);
	}
	return (i);
}

dumpheader(kth)
	struct ktr_header *kth;
{
	static char unknown[64];
	static struct timeval prevtime, temp;
	char *type;

	switch (kth->ktr_type) {
	case KTR_SYSCALL:
		type = "CALL";
		break;
	case KTR_SYSRET:
		type = "RET ";
		break;
	case KTR_NAMEI:
		type = "NAMI";
		break;
	case KTR_GENIO:
		type = "GIO ";
		break;
	case KTR_PSIG:
		type = "PSIG";
		break;
	case KTR_CSW:
		type = "CSW";
		break;
	default:
		(void)sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
		type = unknown;
	}

	(void)printf("%6d %-8s ", kth->ktr_pid, kth->ktr_comm);
	if (timestamp) {
		if (timestamp == 2) {
			temp = kth->ktr_time;
			timevalsub(&kth->ktr_time, &prevtime);
			prevtime = temp;
		}
		(void)printf("%ld.%06ld ",
		    kth->ktr_time.tv_sec, kth->ktr_time.tv_usec);
	}
	(void)printf("%s  ", type);
}

#include <sys/syscall.h>
#define KTRACE
#include "/sys/kern/syscalls.c"
#undef KTRACE
int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]);

static char *ptrace_ops[] = {
	"PT_TRACE_ME",	"PT_READ_I",	"PT_READ_D",	"PT_READ_U",
	"PT_WRITE_I",	"PT_WRITE_D",	"PT_WRITE_U",	"PT_CONTINUE",
	"PT_KILL",	"PT_STEP",
};

ktrsyscall(ktr)
	register struct ktr_syscall *ktr;
{
	register narg = ktr->ktr_narg;
	register int *ip;
	char *ioctlname();

	if (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0)
		(void)printf("[%d]", ktr->ktr_code);
	else
		(void)printf("%s", syscallnames[ktr->ktr_code]);
	ip = (int *)((char *)ktr + sizeof(struct ktr_syscall));
	if (narg) {
		char c = '(';
		if (fancy) {
			if (ktr->ktr_code == SYS_ioctl) {
				char *cp;
				if (decimal)
					(void)printf("(%d", *ip);
				else
					(void)printf("(%#x", *ip);
				ip++;
				narg--;
				if ((cp = ioctlname(*ip)) != NULL)
					(void)printf(",%s", cp);
				else {
					if (decimal)
						(void)printf(",%d", *ip);
					else
						(void)printf(",%#x ", *ip);
				}
				c = ',';
				ip++;
				narg--;
			} else if (ktr->ktr_code == SYS_ptrace) {
				if (*ip <= PT_STEP && *ip >= 0)
					(void)printf("(%s", ptrace_ops[*ip]);
				else
					(void)printf("(%d", *ip);
				c = ',';
				ip++;
				narg--;
			}
		}
		while (narg) {
			if (decimal)
				(void)printf("%c%d", c, *ip);
			else
				(void)printf("%c%#x", c, *ip);
			c = ',';
			ip++;
			narg--;
		}
		(void)putchar(')');
	}
	(void)putchar('\n');
}

ktrsysret(ktr)
	struct ktr_sysret *ktr;
{
	register int ret = ktr->ktr_retval;
	register int error = ktr->ktr_error;
	register int code = ktr->ktr_code;

	if (code >= nsyscalls || code < 0)
		(void)printf("[%d] ", code);
	else
		(void)printf("%s ", syscallnames[code]);

	if (error == 0) {
		if (fancy) {
			(void)printf("%d", ret);
			if (ret < 0 || ret > 9)
				(void)printf("/%#x", ret);
		} else {
			if (decimal)
				(void)printf("%d", ret);
			else
				(void)printf("%#x", ret);
		}
	} else if (error == ERESTART)
		(void)printf("RESTART");
	else if (error == EJUSTRETURN)
		(void)printf("JUSTRETURN");
	else {
		(void)printf("-1 errno %d", ktr->ktr_error);
		if (fancy)
			(void)printf(" %s", strerror(ktr->ktr_error));
	}
	(void)putchar('\n');
}

ktrnamei(cp, len) 
	char *cp;
{
	(void)printf("\"%.*s\"\n", len, cp);
}

ktrgenio(ktr, len)
	struct ktr_genio *ktr;
{
	register int datalen = len - sizeof (struct ktr_genio);
	register char *dp = (char *)ktr + sizeof (struct ktr_genio);
	register char *cp;
	register int col = 0;
	register width;
	char visbuf[5];
	static screenwidth = 0;

	if (screenwidth == 0) {
		struct winsize ws;

		if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
		    ws.ws_col > 8)
			screenwidth = ws.ws_col;
		else
			screenwidth = 80;
	}
	printf("fd %d %s %d bytes\n", ktr->ktr_fd,
		ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
	if (maxdata && datalen > maxdata)
		datalen = maxdata;
	(void)printf("       \"");
	col = 8;
	for (;datalen > 0; datalen--, dp++) {
		(void) vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
		cp = visbuf;
		/*
		 * Keep track of printables and
		 * space chars (like fold(1)).
		 */
		if (col == 0) {
			(void)putchar('\t');
			col = 8;
		}
		switch(*cp) {
		case '\n':
			col = 0;
			(void)putchar('\n');
			continue;
		case '\t':
			width = 8 - (col&07);
			break;
		default:
			width = strlen(cp);
		}
		if (col + width > (screenwidth-2)) {
			(void)printf("\\\n\t");
			col = 8;
		}
		col += width;
		do {
			(void)putchar(*cp++);
		} while (*cp);
	}
	if (col == 0)
		(void)printf("       ");
	(void)printf("\"\n");
}

char *signames[] = {
	"NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT",	/*  1 - 6  */
	"EMT", "FPE", "KILL", "BUS", "SEGV", "SYS",		/*  7 - 12 */
	"PIPE", "ALRM",  "TERM", "URG", "STOP", "TSTP",		/* 13 - 18 */
	"CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU",		/* 19 - 24 */
	"XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1",	/* 25 - 30 */
	"USR2", NULL,						/* 31 - 32 */
};

ktrpsig(psig)
	struct ktr_psig *psig;
{
	(void)printf("SIG%s ", signames[psig->signo]);
	if (psig->action == SIG_DFL)
		(void)printf("SIG_DFL\n");
	else
		(void)printf("caught handler=0x%x mask=0x%x code=0x%x\n",
		    (u_int)psig->action, psig->mask, psig->code);
}

ktrcsw(cs)
	struct ktr_csw *cs;
{
	(void)printf("%s %s\n", cs->out ? "stop" : "resume",
		cs->user ? "user" : "kernel");
}

usage()
{
	(void)fprintf(stderr,
	    "usage: kdump [-dnlRT] [-f trfile] [-m maxdata] [-t [cnis]]\n");
	exit(1);
}
Commit	Line	Data
2bfb1112	1	/*-
ad787160 C	2	* Copyright (c) 1988, 1993
ad787160 C	3	* The Regents of the University of California. All rights reserved.
af3069b3	4	*
ad787160 C	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.
af3069b3 MT	32	*/
	33
	34	#ifndef lint
ad787160 C	35	static char copyright[] =
	36	"@(#) Copyright (c) 1988, 1993\n\
	37	The Regents of the University of California. All rights reserved.\n";
af3069b3 MT	38	#endif /* not lint */
	39
	40	#ifndef lint
ad787160	41	static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93";
af3069b3 MT	42	#endif /* not lint */
af3069b3 MT	43
d1c87cd4	44	#include <sys/param.h>
961a0908	45	#include <sys/errno.h>
d1c87cd4 KB	46	#include <sys/time.h>
	47	#include <sys/uio.h>
	48	#include <sys/ktrace.h>
cf9db849	49	#include <sys/ioctl.h>
64fe3091	50	#include <sys/ptrace.h>
2bfb1112	51	#define KERNEL
d1c87cd4	52	#include <sys/errno.h>
2bfb1112	53	#undef KERNEL
d1c87cd4 KB	54	#include <vis.h>
	55	#include <stdio.h>
	56	#include <stdlib.h>
	57	#include <string.h>
2bfb1112	58	#include "ktrace.h"
af3069b3	59
8b4e7b52	60	int timestamp, decimal, fancy = 1, tail, maxdata;
f4d5acdc	61	char *tracefile = DEF_TRACEFILE;
af3069b3	62	struct ktr_header ktr_header;
af3069b3 MT	63
	64	#define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
	65
	66	main(argc, argv)
d1c87cd4	67	int argc;
af3069b3 MT	68	char *argv[];
	69	{
	70	extern int optind;
	71	extern char *optarg;
d1c87cd4 KB	72	int ch, ktrlen, size;
d1c87cd4 KB	73	register void *m;
cf9db849	74	int trpoints = ALL_POINTS;
af3069b3	75
d1c87cd4	76	while ((ch = getopt(argc,argv,"f:dlm:nRTt:")) != EOF)
af3069b3	77	switch((char)ch) {
8b4e7b52 MT	78	case 'f':
	79	tracefile = optarg;
	80	break;
	81	case 'd':
	82	decimal = 1;
	83	break;
8b4e7b52 MT	84	case 'l':
	85	tail = 1;
	86	break;
d1c87cd4 KB	87	case 'm':
	88	maxdata = atoi(optarg);
	89	break;
	90	case 'n':
	91	fancy = 0;
8b4e7b52	92	break;
cf9db849 MT	93	case 'R':
	94	timestamp = 2; /* relative timestamp */
	95	break;
d1c87cd4 KB	96	case 'T':
	97	timestamp = 1;
	98	break;
	99	case 't':
	100	trpoints = getpoints(optarg);
	101	if (trpoints < 0) {
	102	(void)fprintf(stderr,
	103	"kdump: unknown trace point in %s\n",
	104	optarg);
	105	exit(1);
	106	}
8b4e7b52 MT	107	break;
8b4e7b52 MT	108	default:
d1c87cd4	109	usage();
af3069b3	110	}
d1c87cd4 KB	111	argv += optind;
d1c87cd4 KB	112	argc -= optind;
af3069b3	113
d1c87cd4 KB	114	if (argc > 1)
	115	usage();
	116
	117	m = (void *)malloc(size = 1025);
af3069b3	118	if (m == NULL) {
d1c87cd4	119	(void)fprintf(stderr, "kdump: %s.\n", strerror(ENOMEM));
af3069b3 MT	120	exit(1);
af3069b3 MT	121	}
961a0908 KB	122	if (!freopen(tracefile, "r", stdin)) {
	123	(void)fprintf(stderr,
	124	"kdump: %s: %s.\n", tracefile, strerror(errno));
	125	exit(1);
	126	}
d1c87cd4	127	while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
cf9db849	128	if (trpoints & (1<<ktr_header.ktr_type))
f4d5acdc	129	dumpheader(&ktr_header);
3812fdb0	130	if ((ktrlen = ktr_header.ktr_len) < 0) {
d1c87cd4 KB	131	(void)fprintf(stderr,
d1c87cd4 KB	132	"kdump: bogus length 0x%x\n", ktrlen);
af3069b3 MT	133	exit(1);
	134	}
	135	if (ktrlen > size) {
d1c87cd4	136	m = (void *)realloc(m, ktrlen+1);
af3069b3	137	if (m == NULL) {
d1c87cd4 KB	138	(void)fprintf(stderr,
d1c87cd4 KB	139	"kdump: %s.\n", strerror(ENOMEM));
af3069b3 MT	140	exit(1);
	141	}
	142	size = ktrlen;
	143	}
d1c87cd4 KB	144	if (ktrlen && fread_tail(m, ktrlen, 1) == 0) {
d1c87cd4 KB	145	(void)fprintf(stderr, "kdump: data too short.\n");
af3069b3 MT	146	exit(1);
af3069b3 MT	147	}
cf9db849	148	if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
f4d5acdc	149	continue;
af3069b3 MT	150	switch (ktr_header.ktr_type) {
af3069b3 MT	151	case KTR_SYSCALL:
d1c87cd4	152	ktrsyscall((struct ktr_syscall *)m);
af3069b3 MT	153	break;
af3069b3 MT	154	case KTR_SYSRET:
d1c87cd4	155	ktrsysret((struct ktr_sysret *)m);
af3069b3 MT	156	break;
	157	case KTR_NAMEI:
	158	ktrnamei(m, ktrlen);
	159	break;
b4a09a32 MT	160	case KTR_GENIO:
	161	ktrgenio((struct ktr_genio *)m, ktrlen);
	162	break;
cf9db849	163	case KTR_PSIG:
d1c87cd4	164	ktrpsig((struct ktr_psig *)m);
cf9db849	165	break;
8b7840bb MT	166	case KTR_CSW:
	167	ktrcsw((struct ktr_csw *)m);
	168	break;
af3069b3	169	}
8b4e7b52	170	if (tail)
d1c87cd4	171	(void)fflush(stdout);
af3069b3 MT	172	}
	173	}
	174
d1c87cd4	175	fread_tail(buf, size, num)
b4a09a32	176	char *buf;
d1c87cd4	177	int num, size;
b4a09a32 MT	178	{
b4a09a32 MT	179	int i;
8b4e7b52	180
d1c87cd4 KB	181	while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
	182	(void)sleep(1);
	183	clearerr(stdin);
b4a09a32	184	}
8b4e7b52	185	return (i);
b4a09a32 MT	186	}
b4a09a32 MT	187
af3069b3 MT	188	dumpheader(kth)
	189	struct ktr_header *kth;
	190	{
	191	static char unknown[64];
cf9db849	192	static struct timeval prevtime, temp;
af3069b3 MT	193	char *type;
	194
	195	switch (kth->ktr_type) {
	196	case KTR_SYSCALL:
f4d5acdc	197	type = "CALL";
af3069b3 MT	198	break;
af3069b3 MT	199	case KTR_SYSRET:
f4d5acdc	200	type = "RET ";
af3069b3 MT	201	break;
af3069b3 MT	202	case KTR_NAMEI:
f4d5acdc	203	type = "NAMI";
af3069b3	204	break;
b4a09a32	205	case KTR_GENIO:
f4d5acdc	206	type = "GIO ";
b4a09a32	207	break;
cf9db849 MT	208	case KTR_PSIG:
	209	type = "PSIG";
	210	break;
8b7840bb MT	211	case KTR_CSW:
	212	type = "CSW";
	213	break;
af3069b3	214	default:
d1c87cd4	215	(void)sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
af3069b3 MT	216	type = unknown;
	217	}
	218
d1c87cd4	219	(void)printf("%6d %-8s ", kth->ktr_pid, kth->ktr_comm);
cf9db849 MT	220	if (timestamp) {
	221	if (timestamp == 2) {
	222	temp = kth->ktr_time;
	223	timevalsub(&kth->ktr_time, &prevtime);
	224	prevtime = temp;
	225	}
d1c87cd4 KB	226	(void)printf("%ld.%06ld ",
d1c87cd4 KB	227	kth->ktr_time.tv_sec, kth->ktr_time.tv_usec);
cf9db849	228	}
d1c87cd4	229	(void)printf("%s ", type);
af3069b3 MT	230	}
af3069b3 MT	231
f4d5acdc MT	232	#include <sys/syscall.h>
f4d5acdc MT	233	#define KTRACE
8b4e7b52	234	#include "/sys/kern/syscalls.c"
f4d5acdc	235	#undef KTRACE
af3069b3 MT	236	int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]);
af3069b3 MT	237
64fe3091 KB	238	static char *ptrace_ops[] = {
	239	"PT_TRACE_ME", "PT_READ_I", "PT_READ_D", "PT_READ_U",
	240	"PT_WRITE_I", "PT_WRITE_D", "PT_WRITE_U", "PT_CONTINUE",
	241	"PT_KILL", "PT_STEP",
	242	};
	243
d1c87cd4	244	ktrsyscall(ktr)
af3069b3 MT	245	register struct ktr_syscall *ktr;
	246	{
	247	register narg = ktr->ktr_narg;
	248	register int *ip;
f4d5acdc	249	char *ioctlname();
af3069b3 MT	250
af3069b3 MT	251	if (ktr->ktr_code >= nsyscalls \|\| ktr->ktr_code < 0)
d1c87cd4	252	(void)printf("[%d]", ktr->ktr_code);
af3069b3	253	else
d1c87cd4	254	(void)printf("%s", syscallnames[ktr->ktr_code]);
af3069b3	255	ip = (int )((char )ktr + sizeof(struct ktr_syscall));
f4d5acdc MT	256	if (narg) {
f4d5acdc MT	257	char c = '(';
64fe3091 KB	258	if (fancy) {
	259	if (ktr->ktr_code == SYS_ioctl) {
	260	char *cp;
f4d5acdc	261	if (decimal)
64fe3091 KB	262	(void)printf("(%d", *ip);
	263	else
	264	(void)printf("(%#x", *ip);
	265	ip++;
	266	narg--;
	267	if ((cp = ioctlname(*ip)) != NULL)
	268	(void)printf(",%s", cp);
	269	else {
	270	if (decimal)
	271	(void)printf(",%d", *ip);
	272	else
	273	(void)printf(",%#x ", *ip);
	274	}
	275	c = ',';
	276	ip++;
	277	narg--;
	278	} else if (ktr->ktr_code == SYS_ptrace) {
	279	if (ip <= PT_STEP && ip >= 0)
	280	(void)printf("(%s", ptrace_ops[*ip]);
f4d5acdc	281	else
64fe3091 KB	282	(void)printf("(%d", *ip);
	283	c = ',';
	284	ip++;
	285	narg--;
f4d5acdc	286	}
f4d5acdc MT	287	}
	288	while (narg) {
	289	if (decimal)
d1c87cd4	290	(void)printf("%c%d", c, *ip);
f4d5acdc	291	else
d1c87cd4	292	(void)printf("%c%#x", c, *ip);
f4d5acdc	293	c = ',';
d1c87cd4 KB	294	ip++;
d1c87cd4 KB	295	narg--;
f4d5acdc	296	}
d1c87cd4	297	(void)putchar(')');
f4d5acdc	298	}
d1c87cd4	299	(void)putchar('\n');
af3069b3 MT	300	}
af3069b3 MT	301
d1c87cd4	302	ktrsysret(ktr)
af3069b3 MT	303	struct ktr_sysret *ktr;
af3069b3 MT	304	{
2bfb1112 MT	305	register int ret = ktr->ktr_retval;
	306	register int error = ktr->ktr_error;
	307	register int code = ktr->ktr_code;
af3069b3	308
2bfb1112	309	if (code >= nsyscalls \|\| code < 0)
d1c87cd4	310	(void)printf("[%d] ", code);
af3069b3	311	else
d1c87cd4	312	(void)printf("%s ", syscallnames[code]);
2bfb1112 MT	313
2bfb1112 MT	314	if (error == 0) {
f4d5acdc	315	if (fancy) {
d1c87cd4	316	(void)printf("%d", ret);
f4d5acdc	317	if (ret < 0 \|\| ret > 9)
d1c87cd4	318	(void)printf("/%#x", ret);
f4d5acdc MT	319	} else {
f4d5acdc MT	320	if (decimal)
d1c87cd4	321	(void)printf("%d", ret);
f4d5acdc	322	else
d1c87cd4	323	(void)printf("%#x", ret);
f4d5acdc	324	}
2bfb1112	325	} else if (error == ERESTART)
d1c87cd4	326	(void)printf("RESTART");
2bfb1112	327	else if (error == EJUSTRETURN)
d1c87cd4	328	(void)printf("JUSTRETURN");
2bfb1112	329	else {
d1c87cd4	330	(void)printf("-1 errno %d", ktr->ktr_error);
2bfb1112	331	if (fancy)
d1c87cd4	332	(void)printf(" %s", strerror(ktr->ktr_error));
f4d5acdc	333	}
d1c87cd4	334	(void)putchar('\n');
af3069b3 MT	335	}
af3069b3 MT	336
f4d5acdc MT	337	ktrnamei(cp, len)
	338	char *cp;
	339	{
d1c87cd4	340	(void)printf("\"%.*s\"\n", len, cp);
b4a09a32 MT	341	}
	342
	343	ktrgenio(ktr, len)
	344	struct ktr_genio *ktr;
	345	{
cf9db849 MT	346	register int datalen = len - sizeof (struct ktr_genio);
	347	register char dp = (char )ktr + sizeof (struct ktr_genio);
	348	register char *cp;
f4d5acdc	349	register int col = 0;
cf9db849	350	register width;
2bfb1112	351	char visbuf[5];
cf9db849 MT	352	static screenwidth = 0;
	353
	354	if (screenwidth == 0) {
	355	struct winsize ws;
b4a09a32	356
cf9db849 MT	357	if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
	358	ws.ws_col > 8)
	359	screenwidth = ws.ws_col;
	360	else
	361	screenwidth = 80;
	362	}
f4d5acdc MT	363	printf("fd %d %s %d bytes\n", ktr->ktr_fd,
	364	ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
	365	if (maxdata && datalen > maxdata)
	366	datalen = maxdata;
d1c87cd4	367	(void)printf(" \"");
cf9db849 MT	368	col = 8;
cf9db849 MT	369	for (;datalen > 0; datalen--, dp++) {
2bfb1112 MT	370	(void) vis(visbuf, dp, VIS_CSTYLE, (dp+1));
2bfb1112 MT	371	cp = visbuf;
cf9db849 MT	372	/*
	373	* Keep track of printables and
	374	* space chars (like fold(1)).
	375	*/
f4d5acdc	376	if (col == 0) {
d1c87cd4	377	(void)putchar('\t');
cf9db849	378	col = 8;
b4a09a32	379	}
cf9db849 MT	380	switch(*cp) {
	381	case '\n':
	382	col = 0;
d1c87cd4	383	(void)putchar('\n');
f4d5acdc	384	continue;
cf9db849 MT	385	case '\t':
	386	width = 8 - (col&07);
	387	break;
	388	default:
	389	width = strlen(cp);
f4d5acdc	390	}
cf9db849	391	if (col + width > (screenwidth-2)) {
d1c87cd4	392	(void)printf("\\\n\t");
cf9db849	393	col = 8;
f4d5acdc	394	}
cf9db849 MT	395	col += width;
cf9db849 MT	396	do {
d1c87cd4	397	(void)putchar(*cp++);
cf9db849 MT	398	} while (*cp);
	399	}
	400	if (col == 0)
d1c87cd4 KB	401	(void)printf(" ");
d1c87cd4 KB	402	(void)printf("\"\n");
cf9db849 MT	403	}
cf9db849 MT	404
cf9db849 MT	405	char *signames[] = {
	406	"NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", /* 1 - 6 */
	407	"EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", /* 7 - 12 */
	408	"PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", /* 13 - 18 */
	409	"CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", /* 19 - 24 */
	410	"XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1", /* 25 - 30 */
	411	"USR2", NULL, /* 31 - 32 */
	412	};
	413
d1c87cd4	414	ktrpsig(psig)
cf9db849 MT	415	struct ktr_psig *psig;
cf9db849 MT	416	{
d1c87cd4	417	(void)printf("SIG%s ", signames[psig->signo]);
cf9db849	418	if (psig->action == SIG_DFL)
d1c87cd4 KB	419	(void)printf("SIG_DFL\n");
	420	else
	421	(void)printf("caught handler=0x%x mask=0x%x code=0x%x\n",
	422	(u_int)psig->action, psig->mask, psig->code);
	423	}
	424
8b7840bb MT	425	ktrcsw(cs)
	426	struct ktr_csw *cs;
	427	{
	428	(void)printf("%s %s\n", cs->out ? "stop" : "resume",
	429	cs->user ? "user" : "kernel");
	430	}
	431
d1c87cd4 KB	432	usage()
	433	{
	434	(void)fprintf(stderr,
	435	"usage: kdump [-dnlRT] [-f trfile] [-m maxdata] [-t [cnis]]\n");
	436	exit(1);
af3069b3	437	}