470 lines
11 KiB
C
470 lines
11 KiB
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 const char copyright[] =
|
|
"@(#) Copyright (c) 1988, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$Id: kdump.c,v 1.14 1999/06/26 07:31:13 bde Exp $";
|
|
#endif /* not lint */
|
|
|
|
#define KERNEL
|
|
extern int errno;
|
|
#include <sys/errno.h>
|
|
#undef KERNEL
|
|
#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>
|
|
#include <err.h>
|
|
#include <locale.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <vis.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[];
|
|
{
|
|
int ch, ktrlen, size;
|
|
register void *m;
|
|
int trpoints = ALL_POINTS;
|
|
|
|
(void) setlocale(LC_CTYPE, "");
|
|
|
|
while ((ch = getopt(argc,argv,"f:dlm:nRTt:")) != -1)
|
|
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)
|
|
errx(1, "unknown trace point in %s", optarg);
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
|
|
if (argc > optind)
|
|
usage();
|
|
|
|
m = (void *)malloc(size = 1025);
|
|
if (m == NULL)
|
|
errx(1, "%s", strerror(ENOMEM));
|
|
if (!freopen(tracefile, "r", stdin))
|
|
err(1, "%s", tracefile);
|
|
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)
|
|
errx(1, "bogus length 0x%x", ktrlen);
|
|
if (ktrlen > size) {
|
|
m = (void *)realloc(m, ktrlen+1);
|
|
if (m == NULL)
|
|
errx(1, "%s", strerror(ENOMEM));
|
|
size = ktrlen;
|
|
}
|
|
if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
|
|
errx(1, "data too short");
|
|
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;
|
|
case KTR_USER:
|
|
ktruser(ktrlen, 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;
|
|
case KTR_USER:
|
|
type = "USER";
|
|
break;
|
|
default:
|
|
(void)sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
|
|
type = unknown;
|
|
}
|
|
|
|
(void)printf("%6d %-8.*s ", kth->ktr_pid, MAXCOMLEN, 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", "PT_ATTACH", "PT_DETACH",
|
|
};
|
|
|
|
ktrsyscall(ktr)
|
|
register struct ktr_syscall *ktr;
|
|
{
|
|
register narg = ktr->ktr_narg;
|
|
register register_t *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 = &ktr->ktr_args[0];
|
|
if (narg) {
|
|
char c = '(';
|
|
if (fancy) {
|
|
if (ktr->ktr_code == SYS_ioctl) {
|
|
char *cp;
|
|
if (decimal)
|
|
(void)printf("(%ld", (long)*ip);
|
|
else
|
|
(void)printf("(%#lx", (long)*ip);
|
|
ip++;
|
|
narg--;
|
|
if ((cp = ioctlname(*ip)) != NULL)
|
|
(void)printf(",%s", cp);
|
|
else {
|
|
if (decimal)
|
|
(void)printf(",%ld", (long)*ip);
|
|
else
|
|
(void)printf(",%#lx ", (long)*ip);
|
|
}
|
|
c = ',';
|
|
ip++;
|
|
narg--;
|
|
} else if (ktr->ktr_code == SYS_ptrace) {
|
|
if (*ip < sizeof(ptrace_ops) /
|
|
sizeof(ptrace_ops[0]) && *ip >= 0)
|
|
(void)printf("(%s", ptrace_ops[*ip]);
|
|
#ifdef PT_GETREGS
|
|
else if (*ip == PT_GETREGS)
|
|
(void)printf("(%s", "PT_GETREGS");
|
|
#endif
|
|
#ifdef PT_SETREGS
|
|
else if (*ip == PT_SETREGS)
|
|
(void)printf("(%s", "PT_SETREGS");
|
|
#endif
|
|
#ifdef PT_GETFPREGS
|
|
else if (*ip == PT_GETFPREGS)
|
|
(void)printf("(%s", "PT_GETFPREGS");
|
|
#endif
|
|
#ifdef PT_SETFPREGS
|
|
else if (*ip == PT_SETFPREGS)
|
|
(void)printf("(%s", "PT_SETFPREGS");
|
|
#endif
|
|
#ifdef PT_GETDBREGS
|
|
else if (*ip == PT_GETDBREGS)
|
|
(void)printf("(%s", "PT_GETDBREGS");
|
|
#endif
|
|
#ifdef PT_SETDBREGS
|
|
else if (*ip == PT_SETDBREGS)
|
|
(void)printf("(%s", "PT_SETDBREGS");
|
|
#endif
|
|
else
|
|
(void)printf("(%ld", (long)*ip);
|
|
c = ',';
|
|
ip++;
|
|
narg--;
|
|
}
|
|
}
|
|
while (narg) {
|
|
if (decimal)
|
|
(void)printf("%c%ld", c, (long)*ip);
|
|
else
|
|
(void)printf("%c%#lx", c, (long)*ip);
|
|
c = ',';
|
|
ip++;
|
|
narg--;
|
|
}
|
|
(void)putchar(')');
|
|
}
|
|
(void)putchar('\n');
|
|
}
|
|
|
|
ktrsysret(ktr)
|
|
struct ktr_sysret *ktr;
|
|
{
|
|
register register_t 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("/%#lx", (long)ret);
|
|
} else {
|
|
if (decimal)
|
|
(void)printf("%ld", (long)ret);
|
|
else
|
|
(void)printf("%#lx", (long)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 byte%s\n", ktr->ktr_fd,
|
|
ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
|
|
datalen == 1 ? "" : "s");
|
|
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%lx mask=0x%x code=0x%x\n",
|
|
(u_long)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");
|
|
}
|
|
|
|
ktruser(len, p)
|
|
int len;
|
|
unsigned char *p;
|
|
{
|
|
(void)printf("%d ", len);
|
|
while (len--)
|
|
(void)printf(" %02x", *p++);
|
|
(void)printf("\n");
|
|
|
|
}
|
|
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: kdump [-dnlRT] [-f trfile] [-m maxdata] [-t [cnisuw]]\n");
|
|
exit(1);
|
|
}
|