[src/trunk]: src/sys/arch/usermode/usermode update usage message:

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0c168840a8f3
branches:  trunk
changeset: 772258:0c168840a8f3
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Mon Dec 26 21:22:23 2011 +0000

description:
update usage message:

$ ./netbsd -h
-h: unknown flag
usage: ./netbsd [-acdqsvxz] [tap=<dev>,<eaddr>] [audio=<dev>] [<fsimg>]
       (ex. "./netbsd tap=tap0,00:00:be:ef:ca:fe audio=audio0 root.fs")

diffstat:

 sys/arch/usermode/usermode/machdep.c |  21 +++++++++++++++++----
 1 files changed, 17 insertions(+), 4 deletions(-)

diffs (49 lines):

diff -r ac04b4afe068 -r 0c168840a8f3 sys/arch/usermode/usermode/machdep.c
--- a/sys/arch/usermode/usermode/machdep.c      Mon Dec 26 21:06:42 2011 +0000
+++ b/sys/arch/usermode/usermode/machdep.c      Mon Dec 26 21:22:23 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.44 2011/12/26 21:06:42 jmcneill Exp $ */
+/* $NetBSD: machdep.c,v 1.45 2011/12/26 21:22:23 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2011 Reinoud Zandijk <reinoud%netbsd.org@localhost>
@@ -38,7 +38,7 @@
 #include "opt_sdl.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.44 2011/12/26 21:06:42 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.45 2011/12/26 21:22:23 jmcneill Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -73,6 +73,20 @@
 void   main(int argc, char *argv[]);
 void   usermode_reboot(void);
 
+static void
+usage(const char *pn)
+{
+       printf("usage: %s [-acdqsvxz]"
+           " [tap=<dev>,<eaddr>]"
+           " [audio=<dev>]"
+           " [<fsimg>]\n",
+           pn);
+       printf("       (ex. \"%s"
+           " tap=tap0,00:00:be:ef:ca:fe"
+           " audio=audio0"
+           " root.fs\")\n", pn);
+}
+
 void
 main(int argc, char *argv[])
 {
@@ -141,8 +155,7 @@
                        BOOT_FLAG(argv[i][j], r);
                        if (r == 0) {
                                printf("-%c: unknown flag\n", argv[i][j]);
-                               printf("usage: %s [-acdqsvxz]\n", argv[0]);
-                               printf("       (ex. \"%s -s\")\n", argv[0]);
+                               usage(argv[0]);
                                return;
                        }
                        tmpopt |= r;