130 lines
5.3 KiB
HTML
130 lines
5.3 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Copyright (C) 1988-2016 Free Software Foundation, Inc.
|
|
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with the
|
|
Invariant Sections being "Funding Free Software", the Front-Cover
|
|
Texts being (a) (see below), and with the Back-Cover Texts being (b)
|
|
(see below). A copy of the license is included in the section entitled
|
|
"GNU Free Documentation License".
|
|
|
|
(a) The FSF's Front-Cover Text is:
|
|
|
|
A GNU Manual
|
|
|
|
(b) The FSF's Back-Cover Text is:
|
|
|
|
You have freedom to copy and modify this GNU Manual, like GNU
|
|
software. Copies published by the Free Software Foundation raise
|
|
funds for GNU development. -->
|
|
<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>GNU Compiler Collection (GCC) Internals: Plugins building</title>
|
|
|
|
<meta name="description" content="GNU Compiler Collection (GCC) Internals: Plugins building">
|
|
<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Plugins building">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Plugins.html#Plugins" rel="up" title="Plugins">
|
|
<link href="LTO.html#LTO" rel="next" title="LTO">
|
|
<link href="Plugins-tracking.html#Plugins-tracking" rel="prev" title="Plugins tracking">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.indentedblock {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style:oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nocodebreak {white-space:nowrap}
|
|
span.nolinebreak {white-space:nowrap}
|
|
span.roman {font-family:serif; font-weight:normal}
|
|
span.sansserif {font-family:sans-serif; font-weight:normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
|
|
<a name="Plugins-building"></a>
|
|
<div class="header">
|
|
<p>
|
|
Previous: <a href="Plugins-tracking.html#Plugins-tracking" accesskey="p" rel="prev">Plugins tracking</a>, Up: <a href="Plugins.html#Plugins" accesskey="u" rel="up">Plugins</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<a name="Building-GCC-plugins"></a>
|
|
<h3 class="section">23.10 Building GCC plugins</h3>
|
|
|
|
<p>If plugins are enabled, GCC installs the headers needed to build a
|
|
plugin (somewhere in the installation tree, e.g. under
|
|
<samp>/usr/local</samp>). In particular a <samp>plugin/include</samp> directory
|
|
is installed, containing all the header files needed to build plugins.
|
|
</p>
|
|
<p>On most systems, you can query this <code>plugin</code> directory by
|
|
invoking <code>gcc -print-file-name=plugin</code> (replace if needed
|
|
<code>gcc</code> with the appropriate program path).
|
|
</p>
|
|
<p>Inside plugins, this <code>plugin</code> directory name can be queried by
|
|
calling <code>default_plugin_dir_name ()</code>.
|
|
</p>
|
|
<p>Plugins may know, when they are compiled, the GCC version for which
|
|
<samp>plugin-version.h</samp> is provided. The constant macros
|
|
<code>GCCPLUGIN_VERSION_MAJOR</code>, <code>GCCPLUGIN_VERSION_MINOR</code>,
|
|
<code>GCCPLUGIN_VERSION_PATCHLEVEL</code>, <code>GCCPLUGIN_VERSION</code> are
|
|
integer numbers, so a plugin could ensure it is built for GCC 4.7 with
|
|
</p><div class="smallexample">
|
|
<pre class="smallexample">#if GCCPLUGIN_VERSION != 4007
|
|
#error this GCC plugin is for GCC 4.7
|
|
#endif
|
|
</pre></div>
|
|
|
|
<p>The following GNU Makefile excerpt shows how to build a simple plugin:
|
|
</p>
|
|
<div class="smallexample">
|
|
<pre class="smallexample">HOST_GCC=g++
|
|
TARGET_GCC=gcc
|
|
PLUGIN_SOURCE_FILES= plugin1.c plugin2.cc
|
|
GCCPLUGINS_DIR:= $(shell $(TARGET_GCC) -print-file-name=plugin)
|
|
CXXFLAGS+= -I$(GCCPLUGINS_DIR)/include -fPIC -fno-rtti -O2
|
|
|
|
plugin.so: $(PLUGIN_SOURCE_FILES)
|
|
$(HOST_GCC) -shared $(CXXFLAGS) $^ -o $@
|
|
</pre></div>
|
|
|
|
<p>A single source file plugin may be built with <code>g++ -I`gcc
|
|
-print-file-name=plugin`/include -fPIC -shared -fno-rtti -O2 plugin.c -o
|
|
plugin.so</code>, using backquote shell syntax to query the <samp>plugin</samp>
|
|
directory.
|
|
</p>
|
|
<p>When a plugin needs to use <code>gengtype</code>, be sure that both
|
|
<samp>gengtype</samp> and <samp>gtype.state</samp> have the same version as the
|
|
GCC for which the plugin is built.
|
|
</p>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|