| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- 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. --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>GNU Compiler Collection (GCC) Internals: Configuration Files</title> |
| |
| <meta name="description" content="GNU Compiler Collection (GCC) Internals: Configuration Files"> |
| <meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Configuration Files"> |
| <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="Configuration.html#Configuration" rel="up" title="Configuration"> |
| <link href="Build.html#Build" rel="next" title="Build"> |
| <link href="System-Config.html#System-Config" rel="prev" title="System Config"> |
| <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="Configuration-Files"></a> |
| <div class="header"> |
| <p> |
| Previous: <a href="System-Config.html#System-Config" accesskey="p" rel="prev">System Config</a>, Up: <a href="Configuration.html#Configuration" accesskey="u" rel="up">Configuration</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="Files-Created-by-configure"></a> |
| <h4 class="subsubsection">6.3.2.3 Files Created by <code>configure</code></h4> |
| |
| <p>Here we spell out what files will be set up by <samp>configure</samp> in the |
| <samp>gcc</samp> directory. Some other files are created as temporary files |
| in the configuration process, and are not used in the subsequent |
| build; these are not documented. |
| </p> |
| <ul> |
| <li> <samp>Makefile</samp> is constructed from <samp>Makefile.in</samp>, together with |
| the host and target fragments (see <a href="Fragments.html#Fragments">Makefile |
| Fragments</a>) <samp>t-<var>target</var></samp> and <samp>x-<var>host</var></samp> from |
| <samp>config</samp>, if any, and language Makefile fragments |
| <samp><var>language</var>/Make-lang.in</samp>. |
| </li><li> <samp>auto-host.h</samp> contains information about the host machine |
| determined by <samp>configure</samp>. If the host machine is different from |
| the build machine, then <samp>auto-build.h</samp> is also created, |
| containing such information about the build machine. |
| </li><li> <samp>config.status</samp> is a script that may be run to recreate the |
| current configuration. |
| </li><li> <samp>configargs.h</samp> is a header containing details of the arguments |
| passed to <samp>configure</samp> to configure GCC, and of the thread model |
| used. |
| </li><li> <samp>cstamp-h</samp> is used as a timestamp. |
| </li><li> If a language <samp>config-lang.in</samp> file (see <a href="Front-End-Config.html#Front-End-Config">The Front End <samp>config-lang.in</samp> File</a>) sets <code>outputs</code>, then |
| the files listed in <code>outputs</code> there are also generated. |
| </li></ul> |
| |
| <p>The following configuration headers are created from the Makefile, |
| using <samp>mkconfig.sh</samp>, rather than directly by <samp>configure</samp>. |
| <samp>config.h</samp>, <samp>bconfig.h</samp> and <samp>tconfig.h</samp> all contain the |
| <samp>xm-<var>machine</var>.h</samp> header, if any, appropriate to the host, |
| build and target machines respectively, the configuration headers for |
| the target, and some definitions; for the host and build machines, |
| these include the autoconfigured headers generated by |
| <samp>configure</samp>. The other configuration headers are determined by |
| <samp>config.gcc</samp>. They also contain the typedefs for <code>rtx</code>, |
| <code>rtvec</code> and <code>tree</code>. |
| </p> |
| <ul> |
| <li> <samp>config.h</samp>, for use in programs that run on the host machine. |
| </li><li> <samp>bconfig.h</samp>, for use in programs that run on the build machine. |
| </li><li> <samp>tconfig.h</samp>, for use in programs and libraries for the target |
| machine. |
| </li><li> <samp>tm_p.h</samp>, which includes the header <samp><var>machine</var>-protos.h</samp> |
| that contains prototypes for functions in the target |
| <samp><var>machine</var>.c</samp> file. The header <samp><var>machine</var>-protos.h</samp> |
| can include prototypes of functions that use rtl and tree data |
| structures inside appropriate <code>#ifdef RTX_CODE</code> and <code>#ifdef |
| TREE_CODE</code> conditional code segements. The |
| <samp><var>machine</var>-protos.h</samp> is included after the <samp>rtl.h</samp> |
| and/or <samp>tree.h</samp> would have been included. The <samp>tm_p.h</samp> also |
| includes the header <samp>tm-preds.h</samp> which is generated by |
| <samp>genpreds</samp> program during the build to define the declarations |
| and inline functions for the predicate functions. |
| </li></ul> |
| |
| <hr> |
| <div class="header"> |
| <p> |
| Previous: <a href="System-Config.html#System-Config" accesskey="p" rel="prev">System Config</a>, Up: <a href="Configuration.html#Configuration" accesskey="u" rel="up">Configuration</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> |
| |
| |
| |
| </body> |
| </html> |
