Go to the next section.

_dnl__ -*-Texinfo-*- _dnl__ Copyright (c) 1988 1989 1990 1991 1992 Free Software Foundation, Inc. _dnl__ $Id: gdb.texinfo,v 2.123 1992/10/23 10:54:39 gnu Exp $<>_dnl__ _if__(_GENERIC__) _fi__(_GENERIC__) _if__(!_GENERIC__) _fi__(!_GENERIC__)

_0__@c ===> NOTE! <==_1__

_if__(0)

NOTE: this manual is marked up for preprocessing with a collection of m4 macros called "pretex.m4".

THIS IS THE SOURCE PRIOR TO PREPROCESSING. The full source needs to be run through m4 before either tex- or info- formatting: for example, _0__ m4 pretex.m4 none.m4 all.m4 gdb.texinfo >gdb-all.texinfo will produce (assuming your path finds either GNU m4 >= 0.84, or SysV m4; Berkeley will not do) a file suitable for formatting. See the text in "pretex.m4" for a fuller explanation (and the macro definitions). _1__

_fi__(0)

_if__(!_GENERIC__) _fi__(!_GENERIC__)

Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.

Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided also that the section entitled "GNU General Public License" is included exactly as in the original, and provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one.

Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions, except that the section entitled "GNU General Public License" may be included in a translation approved by the Free Software Foundation instead of in the original English.

Summary of _GDBN__

The purpose of a debugger such as _GDBN__ is to allow you to see what is going on "inside" another program while it executes--or what another program was doing at the moment it crashed.

_GDBN__ can do four main kinds of things (plus other things in support of these) to help you catch bugs in the act:

Start your program, specifying anything that might affect its behavior.
Make your program stop on specified conditions.
Examine what has happened, when your program has stopped.
Change things in your program, so you can experiment with correcting the effects of one bug and go on to learn about another.

_if__(!_CONLY__) You can use _GDBN__ to debug programs written in C, C++, and Modula-2. Fortran support will be added when a GNU Fortran compiler is ready. _fi__(!_CONLY__)