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76 lines
3.4 KiB
HTML
76 lines
3.4 KiB
HTML
<html lang="en">
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<title>Plugins loading - GNU Compiler Collection (GCC) Internals</title>
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<meta name="description" content="GNU Compiler Collection (GCC) Internals">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Plugins.html#Plugins" title="Plugins">
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<link rel="next" href="Plugin-API.html#Plugin-API" title="Plugin API">
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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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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Invariant Sections being ``Funding Free Software'', the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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``GNU Free Documentation License''.
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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<body>
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<div class="node">
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<a name="Plugins-loading"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Plugin-API.html#Plugin-API">Plugin API</a>,
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Up: <a rel="up" accesskey="u" href="Plugins.html#Plugins">Plugins</a>
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<hr>
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</div>
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<h3 class="section">23.1 Loading Plugins</h3>
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<p>Plugins are supported on platforms that support <samp><span class="option">-ldl
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-rdynamic</span></samp>. They are loaded by the compiler using <code>dlopen</code>
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and invoked at pre-determined locations in the compilation
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process.
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<p>Plugins are loaded with
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<p><samp><span class="option">-fplugin=/path/to/</span><var>name</var><span class="option">.so</span></samp> <samp><span class="option">-fplugin-arg-</span><var>name</var><span class="option">-</span><var>key1</var><span class="option">[=</span><var>value1</var><span class="option">]</span></samp>
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<p>The plugin arguments are parsed by GCC and passed to respective
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plugins as key-value pairs. Multiple plugins can be invoked by
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specifying multiple <samp><span class="option">-fplugin</span></samp> arguments.
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<p>A plugin can be simply given by its short name (no dots or
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slashes). When simply passing <samp><span class="option">-fplugin=</span><var>name</var></samp>, the plugin is
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loaded from the <samp><span class="file">plugin</span></samp> directory, so <samp><span class="option">-fplugin=</span><var>name</var></samp> is
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the same as <samp><span class="option">-fplugin=`gcc -print-file-name=plugin`/</span><var>name</var><span class="option">.so</span></samp>,
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using backquote shell syntax to query the <samp><span class="file">plugin</span></samp> directory.
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</body></html>
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