[src/trunk]: src/sys/kern Make lockdebug_lock_print(NULL, ...) dump all locks...

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

details:   https://anonhg.NetBSD.org/src/rev/3466988e5833
branches:  trunk
changeset: 748714:3466988e5833
user:      dyoung <dyoung%NetBSD.org@localhost>
date:      Tue Nov 03 00:29:11 2009 +0000

description:
Make lockdebug_lock_print(NULL, ...) dump all locks.  Now, in ddb,
'show lock 0x0' dumps all of the locks.

XXX I still need to fix 'show all lock'.

diffstat:

 sys/kern/subr_lockdebug.c |  16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diffs (40 lines):

diff -r 8bf28fe99489 -r 3466988e5833 sys/kern/subr_lockdebug.c
--- a/sys/kern/subr_lockdebug.c Tue Nov 03 00:24:05 2009 +0000
+++ b/sys/kern/subr_lockdebug.c Tue Nov 03 00:29:11 2009 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr_lockdebug.c,v 1.40 2009/10/05 23:39:27 rmind Exp $        */
+/*     $NetBSD: subr_lockdebug.c,v 1.41 2009/11/03 00:29:11 dyoung Exp $       */
 
 /*-
  * Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_lockdebug.c,v 1.40 2009/10/05 23:39:27 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_lockdebug.c,v 1.41 2009/11/03 00:29:11 dyoung Exp $");
 
 #include "opt_ddb.h"
 
@@ -792,12 +792,18 @@
        lockdebug_t *ld;
 
        TAILQ_FOREACH(ld, &ld_all, ld_achain) {
-               if (ld->ld_lock == addr) {
+               if (ld->ld_lock == NULL)
+                       continue;
+               if (addr == NULL || ld->ld_lock == addr) {
                        lockdebug_dump(ld, pr);
-                       return;
+                       if (addr != NULL)
+                               return;
                }
        }
-       (*pr)("Sorry, no record of a lock with address %p found.\n", addr);
+       if (addr != NULL) {
+               (*pr)("Sorry, no record of a lock with address %p found.\n",
+                   addr);
+       }
 #else
        (*pr)("Sorry, kernel not built with the LOCKDEBUG option.\n");
 #endif /* LOCKDEBUG */