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add -w

This commit is contained in:
christos 2014-10-05 22:58:43 +00:00
parent 15239241e8
commit f7bf36a390
2 changed files with 14 additions and 7 deletions
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7
usr.sbin/crash/crash.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: crash.8,v 1.3 2011/04/10 22:49:52 pgoyette Exp $
.\" $NetBSD: crash.8,v 1.4 2014/10/05 22:58:43 christos Exp $
.\"
.\" Copyright (c) 2009 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd March 7, 2009
.Dd October 5, 2014
.Dt CRASH 8
.Os
.Sh NAME
@ -37,6 +37,7 @@
.Nm
.Op Fl M Ar core
.Op Fl N Ar kernel
.Op Fl w
.Sh DESCRIPTION
The
.Nm
@ -58,6 +59,8 @@ and must be uncompressed.
.It Fl N Ar kernel
Extract the name list from the specified kernel instead of the default
.Pa /dev/ksyms .
.It Fl w
Enable writing.
.El
.Pp
The command syntax used by

14
usr.sbin/crash/crash.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: crash.c,v 1.5 2013/03/10 19:32:29 christos Exp $ */
/* $NetBSD: crash.c,v 1.6 2014/10/05 22:58:43 christos Exp $ */
/*-
* Copyright (c) 2009 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: crash.c,v 1.5 2013/03/10 19:32:29 christos Exp $");
__RCSID("$NetBSD: crash.c,v 1.6 2014/10/05 22:58:43 christos Exp $");
#endif /* not lint */
#include <ddb/ddb.h>
@ -329,19 +329,20 @@ main(int argc, char **argv)
struct stat sb;
size_t sz;
void *elf;
int fd, ch;
int fd, ch, flags;
char c;
nlistf = _PATH_KSYMS;
memf = _PATH_MEM;
ofp = stdout;
flags = O_RDONLY;
setprogname(argv[0]);
/*
* Parse options.
*/
while ((ch = getopt(argc, argv, "M:N:")) != -1) {
while ((ch = getopt(argc, argv, "M:N:w")) != -1) {
switch (ch) {
case 'M':
memf = optarg;
@ -349,6 +350,9 @@ main(int argc, char **argv)
case 'N':
nlistf = optarg;
break;
case 'w':
flags = O_RDWR;
break;
default:
usage();
}
@ -364,7 +368,7 @@ main(int argc, char **argv)
/*
* Open the images (crash dump and symbol table).
*/
kd = kvm_open(nlistf, memf, NULL, O_RDONLY, getprogname());
kd = kvm_open(nlistf, memf, NULL, flags, getprogname());
if (kd == NULL) {
return EXIT_FAILURE;
}