1# 2# CDDL HEADER START 3# 4# The contents of this file are subject to the terms of the 5# Common Development and Distribution License, Version 1.0 only 6# (the "License"). You may not use this file except in compliance 7# with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23Copyright (c) 1999 by Sun Microsystems, Inc. 24All rights reserved. 25 26#ident "%Z%%M% %I% %E% SMI" 27 28mdb(1) is an extensible utility for low-level debugging and editing of the 29live operating system, operating system crash dumps, user processes, user 30process core dumps, and object files. mdb provides a completely customizable 31environment for debugging complex software systems such as an operating system, 32for programs that are highly optimized, have had their debug information 33removed, or are themselves low-level debugging tools, and for customer 34situations where developers can only access post-mortem information. 35 36Refer to the white paper "A Modular Debugger for Solaris" for information 37on the design, features, and goals of MDB. See /shared/sac/PSARC/1999/169 38for copies of the paper and related documentation. More information about 39MDB is available on the internal web at http://mdb.eng/. This directory 40contains both the source for the MDB debugger, and the supporting debugger 41modules. Developers are free to modify and enhance these modules to add 42new dcmds and walkers and to create completely new modules. 43 44