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kernel message buffer/log. Its off by default and can be switched on in the kernel configuration on build time, be set as a variable in ddb and be set using sysctl. This adds the sysctl value ddb.tee_msgbuf = 0 by default. The functionality is especially added and aimed for developers who are not blessed with a serial console and wish to keep all their ddb output in the log. Specifying /l as a modifier to some selected commands will also put the output in the log but not all commands provide one nor has the same meaning for all commands. This feature could in the future also be implemented as an ddb command but that could lead to more bloat allthough maybe easier for non developpers to use when mailing their backtraces from kernel crashes.
52 lines
2.2 KiB
C
52 lines
2.2 KiB
C
/* $NetBSD: ddbvar.h,v 1.7 2004/09/29 23:54:11 reinoud Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jonathan Stone.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DDBVAR_H_
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#define _DDBVAR_H_
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/*
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* Externally-visible debugger state and entrypoints
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*/
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extern int db_onpanic;
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extern int db_fromconsole;
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extern int db_tee_msgbuf;
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int read_symtab_from_file(struct proc *,struct vnode *,const char *);
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#endif /* !_DDBVAR_H_ */
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