102 lines
4.4 KiB
HTML
102 lines
4.4 KiB
HTML
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<html lang="en">
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<title>Summary - Debugging with GDB</title>
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<meta name="description" content="Debugging with GDB">
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Free Documentation'', with the Front-Cover Texts being ``A GNU Manual,''
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and with the Back-Cover Texts as in (a) below.
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</head>
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<body>
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<h1 class="settitle">Debugging with GDB</h1>
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<div class="node">
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<a name="Summary"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Sample-Session.html#Sample-Session">Sample Session</a>,
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Previous: <a rel="previous" accesskey="p" href="index.html#Top">Top</a>,
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Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
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<hr>
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</div>
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<h2 class="unnumbered">Summary of <span class="sc">gdb</span></h2>
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<p>The purpose of a debugger such as <span class="sc">gdb</span> is to allow you to see what is
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going on “inside” another program while it executes—or what another
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program was doing at the moment it crashed.
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<p><span class="sc">gdb</span> can do four main kinds of things (plus other things in support of
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these) to help you catch bugs in the act:
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<ul>
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<li>Start your program, specifying anything that might affect its behavior.
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<li>Make your program stop on specified conditions.
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<li>Examine what has happened, when your program has stopped.
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<li>Change things in your program, so you can experiment with correcting the
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effects of one bug and go on to learn about another.
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</ul>
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<p>You can use <span class="sc">gdb</span> to debug programs written in C and C<tt>++</tt>.
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For more information, see <a href="Supported-Languages.html#Supported-Languages">Supported Languages</a>.
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For more information, see <a href="C.html#C">C and C++</a>.
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<p>Support for D is partial. For information on D, see
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<a href="D.html#D">D</a>.
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<p><a name="index-Modula_002d2-1"></a>Support for Modula-2 is partial. For information on Modula-2, see
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<a href="Modula_002d2.html#Modula_002d2">Modula-2</a>.
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<p>Support for OpenCL C is partial. For information on OpenCL C, see
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<a href="OpenCL-C.html#OpenCL-C">OpenCL C</a>.
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<p><a name="index-Pascal-2"></a>Debugging Pascal programs which use sets, subranges, file variables, or
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nested functions does not currently work. <span class="sc">gdb</span> does not support
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entering expressions, printing values, or similar features using Pascal
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syntax.
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<p><a name="index-Fortran-3"></a><span class="sc">gdb</span> can be used to debug programs written in Fortran, although
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it may be necessary to refer to some variables with a trailing
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underscore.
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<p><span class="sc">gdb</span> can be used to debug programs written in Objective-C,
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using either the Apple/NeXT or the GNU Objective-C runtime.
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<ul class="menu">
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<li><a accesskey="1" href="Free-Software.html#Free-Software">Free Software</a>: Freely redistributable software
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<li><a accesskey="2" href="Free-Documentation.html#Free-Documentation">Free Documentation</a>: Free Software Needs Free Documentation
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<li><a accesskey="3" href="Contributors.html#Contributors">Contributors</a>: Contributors to GDB
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</ul>
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</body></html>
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