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- /*-
- * Copyright (c) 1988 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
- char copyright[] =
- "@(#) Copyright (c) 1988 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)kdump.c 5.3 (Berkeley) 1/17/91";
- #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;
- }
- 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;
- 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);
- }
-
- usage()
- {
- (void)fprintf(stderr,
- "usage: kdump [-dnlRT] [-f trfile] [-m maxdata] [-t [cnis]]\n");
- exit(1);
- }
-