You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
7.2 KiB
HTML
130 lines
7.2 KiB
HTML
4 years ago
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>Front End - GNU Compiler Collection (GCC) Internals</title>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html">
|
||
|
|
<meta name="description" content="GNU Compiler Collection (GCC) Internals">
|
||
|
|
<meta name="generator" content="makeinfo 4.13">
|
||
|
|
<link title="Top" rel="start" href="index.html#Top">
|
||
|
|
<link rel="up" href="gcc-Directory.html#gcc-Directory" title="gcc Directory">
|
||
|
|
<link rel="prev" href="Documentation.html#Documentation" title="Documentation">
|
||
|
|
<link rel="next" href="Back-End.html#Back-End" title="Back End">
|
||
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
||
|
|
<!--
|
||
|
|
Copyright (C) 1988-2015 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.-->
|
||
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
||
|
|
<style type="text/css"><!--
|
||
|
|
pre.display { font-family:inherit }
|
||
|
|
pre.format { font-family:inherit }
|
||
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallexample { font-size:smaller }
|
||
|
|
pre.smalllisp { font-size:smaller }
|
||
|
|
span.sc { font-variant:small-caps }
|
||
|
|
span.roman { font-family:serif; font-weight:normal; }
|
||
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
||
|
|
--></style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<div class="node">
|
||
|
|
<a name="Front-End"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="Back-End.html#Back-End">Back End</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="Documentation.html#Documentation">Documentation</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="gcc-Directory.html#gcc-Directory">gcc Directory</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h4 class="subsection">6.3.8 Anatomy of a Language Front End</h4>
|
||
|
|
|
||
|
|
<p>A front end for a language in GCC has the following parts:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li>A directory <samp><var>language</var></samp> under <samp><span class="file">gcc</span></samp> containing source
|
||
|
|
files for that front end. See <a href="Front-End-Directory.html#Front-End-Directory">The Front End <samp><var>language</var></samp> Directory</a>, for details.
|
||
|
|
<li>A mention of the language in the list of supported languages in
|
||
|
|
<samp><span class="file">gcc/doc/install.texi</span></samp>.
|
||
|
|
<li>A mention of the name under which the language's runtime library is
|
||
|
|
recognized by <samp><span class="option">--enable-shared=</span><var>package</var></samp> in the
|
||
|
|
documentation of that option in <samp><span class="file">gcc/doc/install.texi</span></samp>.
|
||
|
|
<li>A mention of any special prerequisites for building the front end in
|
||
|
|
the documentation of prerequisites in <samp><span class="file">gcc/doc/install.texi</span></samp>.
|
||
|
|
<li>Details of contributors to that front end in
|
||
|
|
<samp><span class="file">gcc/doc/contrib.texi</span></samp>. If the details are in that front end's
|
||
|
|
own manual then there should be a link to that manual's list in
|
||
|
|
<samp><span class="file">contrib.texi</span></samp>.
|
||
|
|
<li>Information about support for that language in
|
||
|
|
<samp><span class="file">gcc/doc/frontends.texi</span></samp>.
|
||
|
|
<li>Information about standards for that language, and the front end's
|
||
|
|
support for them, in <samp><span class="file">gcc/doc/standards.texi</span></samp>. This may be a
|
||
|
|
link to such information in the front end's own manual.
|
||
|
|
<li>Details of source file suffixes for that language and <samp><span class="option">-x
|
||
|
|
</span><var>lang</var></samp> options supported, in <samp><span class="file">gcc/doc/invoke.texi</span></samp>.
|
||
|
|
<li>Entries in <code>default_compilers</code> in <samp><span class="file">gcc.c</span></samp> for source file
|
||
|
|
suffixes for that language.
|
||
|
|
<li>Preferably testsuites, which may be under <samp><span class="file">gcc/testsuite</span></samp> or
|
||
|
|
runtime library directories. FIXME: document somewhere how to write
|
||
|
|
testsuite harnesses.
|
||
|
|
<li>Probably a runtime library for the language, outside the <samp><span class="file">gcc</span></samp>
|
||
|
|
directory. FIXME: document this further.
|
||
|
|
<li>Details of the directories of any runtime libraries in
|
||
|
|
<samp><span class="file">gcc/doc/sourcebuild.texi</span></samp>.
|
||
|
|
<li>Check targets in <samp><span class="file">Makefile.def</span></samp> for the top-level <samp><span class="file">Makefile</span></samp>
|
||
|
|
to check just the compiler or the compiler and runtime library for the
|
||
|
|
language.
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<p>If the front end is added to the official GCC source repository, the
|
||
|
|
following are also necessary:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li>At least one Bugzilla component for bugs in that front end and runtime
|
||
|
|
libraries. This category needs to be added to the Bugzilla database.
|
||
|
|
<li>Normally, one or more maintainers of that front end listed in
|
||
|
|
<samp><span class="file">MAINTAINERS</span></samp>.
|
||
|
|
<li>Mentions on the GCC web site in <samp><span class="file">index.html</span></samp> and
|
||
|
|
<samp><span class="file">frontends.html</span></samp>, with any relevant links on
|
||
|
|
<samp><span class="file">readings.html</span></samp>. (Front ends that are not an official part of
|
||
|
|
GCC may also be listed on <samp><span class="file">frontends.html</span></samp>, with relevant links.)
|
||
|
|
<li>A news item on <samp><span class="file">index.html</span></samp>, and possibly an announcement on the
|
||
|
|
<a href="mailto:gcc-announce@gcc.gnu.org">gcc-announce@gcc.gnu.org</a> mailing list.
|
||
|
|
<li>The front end's manuals should be mentioned in
|
||
|
|
<samp><span class="file">maintainer-scripts/update_web_docs_svn</span></samp> (see <a href="Texinfo-Manuals.html#Texinfo-Manuals">Texinfo Manuals</a>)
|
||
|
|
and the online manuals should be linked to from
|
||
|
|
<samp><span class="file">onlinedocs/index.html</span></samp>.
|
||
|
|
<li>Any old releases or CVS repositories of the front end, before its
|
||
|
|
inclusion in GCC, should be made available on the GCC FTP site
|
||
|
|
<a href="ftp://gcc.gnu.org/pub/gcc/old-releases/">ftp://gcc.gnu.org/pub/gcc/old-releases/</a>.
|
||
|
|
<li>The release and snapshot script <samp><span class="file">maintainer-scripts/gcc_release</span></samp>
|
||
|
|
should be updated to generate appropriate tarballs for this front end.
|
||
|
|
<li>If this front end includes its own version files that include the
|
||
|
|
current date, <samp><span class="file">maintainer-scripts/update_version</span></samp> should be
|
||
|
|
updated accordingly.
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<ul class="menu">
|
||
|
|
<li><a accesskey="1" href="Front-End-Directory.html#Front-End-Directory">Front End Directory</a>: The front end <samp><var>language</var></samp> directory.
|
||
|
|
<li><a accesskey="2" href="Front-End-Config.html#Front-End-Config">Front End Config</a>: The front end <samp><span class="file">config-lang.in</span></samp> file.
|
||
|
|
<li><a accesskey="3" href="Front-End-Makefile.html#Front-End-Makefile">Front End Makefile</a>: The front end <samp><span class="file">Make-lang.in</span></samp> file.
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|