mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
c447342094
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
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[] =
|
|
"$FreeBSD$";
|
|
#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);
|
|
}
|