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115 lines
4.9 KiB
HTML
115 lines
4.9 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2018 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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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Front End Directory (GNU Compiler Collection (GCC) Internals)</title>
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<meta name="description" content="Front End Directory (GNU Compiler Collection (GCC) Internals)">
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<meta name="keywords" content="Front End Directory (GNU Compiler Collection (GCC) Internals)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Front-End.html#Front-End" rel="up" title="Front End">
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<link href="Front-End-Config.html#Front-End-Config" rel="next" title="Front End Config">
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<link href="Front-End.html#Front-End" rel="prev" title="Front End">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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div.example {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.smalllisp {font-size: smaller}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Front-End-Directory"></a>
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<div class="header">
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<p>
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Next: <a href="Front-End-Config.html#Front-End-Config" accesskey="n" rel="next">Front End Config</a>, Up: <a href="Front-End.html#Front-End" accesskey="u" rel="up">Front End</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>
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</div>
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<hr>
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<a name="The-Front-End-language-Directory"></a>
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<h4 class="subsubsection">6.3.8.1 The Front End <samp><var>language</var></samp> Directory</h4>
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<p>A front end <samp><var>language</var></samp> directory contains the source files
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of that front end (but not of any runtime libraries, which should be
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outside the <samp>gcc</samp> directory). This includes documentation, and
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possibly some subsidiary programs built alongside the front end.
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Certain files are special and other parts of the compiler depend on
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their names:
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</p>
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<dl compact="compact">
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<dt><samp>config-lang.in</samp></dt>
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<dd><p>This file is required in all language subdirectories. See <a href="Front-End-Config.html#Front-End-Config">The Front End <samp>config-lang.in</samp> File</a>, for details of
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its contents
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</p></dd>
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<dt><samp>Make-lang.in</samp></dt>
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<dd><p>This file is required in all language subdirectories. See <a href="Front-End-Makefile.html#Front-End-Makefile">The Front End <samp>Make-lang.in</samp> File</a>, for details of its
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contents.
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</p></dd>
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<dt><samp>lang.opt</samp></dt>
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<dd><p>This file registers the set of switches that the front end accepts on
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the command line, and their <samp>--help</samp> text. See <a href="Options.html#Options">Options</a>.
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</p></dd>
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<dt><samp>lang-specs.h</samp></dt>
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<dd><p>This file provides entries for <code>default_compilers</code> in
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<samp>gcc.c</samp> which override the default of giving an error that a
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compiler for that language is not installed.
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</p></dd>
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<dt><samp><var>language</var>-tree.def</samp></dt>
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<dd><p>This file, which need not exist, defines any language-specific tree
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codes.
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</p></dd>
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</dl>
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</body>
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</html>
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