[src/trunk]: src/sys/gdbscripts gdb macro to print the kernel message buffer

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

details:   https://anonhg.NetBSD.org/src/rev/27af65e27d12
branches:  trunk
changeset: 487490:27af65e27d12
user:      jhawk <jhawk%NetBSD.org@localhost>
date:      Thu Jun 08 14:45:24 2000 +0000

description:
gdb macro to print the kernel message buffer

diffstat:

 sys/gdbscripts/msgbuf |  72 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 72 insertions(+), 0 deletions(-)

diffs (76 lines):

diff -r 3e174d1dc341 -r 27af65e27d12 sys/gdbscripts/msgbuf
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/gdbscripts/msgbuf     Thu Jun 08 14:45:24 2000 +0000
@@ -0,0 +1,72 @@
+# $NetBSD: msgbuf,v 1.1 2000/06/08 14:45:24 jhawk Exp $
+#
+# Copyright (c) 2000 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# This code is derived from software contributed to The NetBSD Foundation
+# by John A. Hawkinson
+#
+# 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 NetBSD
+#        Foundation, Inc. and its contributors.
+# 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+#
+
+define msgbuf
+  set $bufx=*(long*)(msgbufp+1*sizeof(long))
+  set $bufr=*(long*)(msgbufp+2*sizeof(long))
+  set $bufs=*(long*)(msgbufp+3*sizeof(long))
+
+  printf "msgbufp %#x: bufx %d bufr %d bufs %d\n", msgbufp, $bufx, $bufr, $bufs
+
+# Dump the unread section
+#  set $l = $bufx - $bufr
+#  if ($l < 0)
+#    set $l = $bufs - $bufr
+#  end
+#  set $p = (long)msgbufp+4*sizeof(long)+$bufr
+#  set print elements $l
+#  x/s $p
+
+# Dump the whole thing
+# Presume each section is null-terminated. Possibly bad presumption?
+  set $p = (long)msgbufp+4*sizeof(long)+$bufx
+  set $l = $bufs - $bufx
+  set print elements $l
+  printf "Dumping %#x length %d\n", $p, $l  
+  # XXX (unsupported by gdb): printf "%.*s\n", $l, $p
+  printf "%s\n", $p
+  set $p = (long)msgbufp+4*sizeof(long)
+  set $l = $bufx
+  set print elements $l
+  printf "Dumping %#x length %d\n", $p, $l  
+  # XXX (unsupported by gdb): printf "%.*s\n\n", $l, $p
+  printf "%s\n\n", $p
+end
+
+document msgbuf
+  Dump the kernel message buffer.
+end