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Allow -c argument now.

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This commit is contained in:
christos 2005-01-09 17:47:45 +00:00
parent e34a3b7f08
commit 089038b4a1
2 changed files with 21 additions and 14 deletions
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14
usr.bin/gcore/gcore.1
View File

@ -1,4 +1,4 @@
.\" $NetBSD: gcore.1,v 1.10 2004/12/01 12:02:08 wiz Exp $
.\" $NetBSD: gcore.1,v 1.11 2005/01/09 17:47:45 christos Exp $
.\"
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -35,7 +35,7 @@
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.\"
.Dd January 23, 2003
.Dd January 9, 2004
.Dt GCORE 1
.Os
.Sh NAME
@ -43,6 +43,7 @@
.Nd get core images of running process
.Sh SYNOPSIS
.Nm
.Op Fl c Ar corename
.Ar pid
.Op Ar pid ...
.Sh DESCRIPTION
@ -56,7 +57,9 @@ where
.Dq Aq Pa progname
is the program name of the process corresponding to the pid that is given on
the command line.
This filename can be changed by setting
This filename can be changed by supplying the
.Fl c Ar corename
argument, or setting
.Dq Pa proc.\*[Lt]pid\*[Gt].corename
with
.Xr sysctl 8 .
@ -75,6 +78,5 @@ appeared in BSD 4.2, disappeared in
and reappeared in
.Nx 2.0 .
.Sh BUGS
The
.Op Fl o Ar corename
option is not implemented.
The process is not stopped while the core file is generated, so it might
not be consistent.

21
usr.bin/gcore/gcore.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: gcore.c,v 1.7 2004/01/05 23:23:34 jmmv Exp $ */
/* $NetBSD: gcore.c,v 1.8 2005/01/09 17:47:45 christos Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: gcore.c,v 1.7 2004/01/05 23:23:34 jmmv Exp $");
__RCSID("$NetBSD: gcore.c,v 1.8 2005/01/09 17:47:45 christos Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -46,6 +46,7 @@ __RCSID("$NetBSD: gcore.c,v 1.7 2004/01/05 23:23:34 jmmv Exp $");
#include <sys/proc.h>
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <limits.h>
#include <stdlib.h>
@ -57,7 +58,8 @@ static void usage(void) __attribute__((__noreturn__));
static void
usage(void)
{
(void)fprintf(stderr, "usage: %s <pid> [<pid> ...]\n", getprogname());
(void)fprintf(stderr, "Usage: %s [-c <corename>] <pid> [<pid> ...]\n",
getprogname());
exit(1);
}
@ -66,12 +68,15 @@ int
main(int argc, char **argv)
{
int c;
char *corename = NULL;
int corelen = 0;
while ((c = getopt(argc, argv, "o:")) != -1)
while ((c = getopt(argc, argv, "c:")) != -1)
switch (c) {
case 'o':
errx(1, "-o is not supported yet.");
/*NOTREACHED*/
case 'c':
corename = optarg;
corelen = strlen(corename);
break;
case '?':
default:
usage();
@ -91,7 +96,7 @@ main(int argc, char **argv)
errx(1, "`%s' is not a number.", argv[c]);
if (errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN))
err(1, "Pid `%s'", argv[c]);
if (ptrace(PT_DUMPCORE, (pid_t)lval, NULL, 0) == -1)
if (ptrace(PT_DUMPCORE, (pid_t)lval, corename, corelen) == -1)
err(1, "ptrace(PT_DUMPCORE) failed");
}
return 0;