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| <a name="Configuration-Files"></a> |
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| 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> |
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| <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> |
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| 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> |
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