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| Next: <a href="gcc-Directory.html#gcc-Directory" accesskey="n" rel="next">gcc Directory</a>, Previous: <a href="Configure-Terms.html#Configure-Terms" accesskey="p" rel="prev">Configure Terms</a>, Up: <a href="Source-Tree.html#Source-Tree" accesskey="u" rel="up">Source Tree</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="Top-Level-Source-Directory"></a> |
| <h3 class="section">6.2 Top Level Source Directory</h3> |
| |
| <p>The top level source directory in a GCC distribution contains several |
| files and directories that are shared with other software |
| distributions such as that of GNU Binutils. It also contains several |
| subdirectories that contain parts of GCC and its runtime libraries: |
| </p> |
| <dl compact="compact"> |
| <dt><samp>boehm-gc</samp></dt> |
| <dd><p>The Boehm conservative garbage collector, used as part of the Java |
| runtime library. |
| </p> |
| </dd> |
| <dt><samp>config</samp></dt> |
| <dd><p>Autoconf macros and Makefile fragments used throughout the tree. |
| </p> |
| </dd> |
| <dt><samp>contrib</samp></dt> |
| <dd><p>Contributed scripts that may be found useful in conjunction with GCC. |
| One of these, <samp>contrib/texi2pod.pl</samp>, is used to generate man |
| pages from Texinfo manuals as part of the GCC build process. |
| </p> |
| </dd> |
| <dt><samp>fixincludes</samp></dt> |
| <dd><p>The support for fixing system headers to work with GCC. See |
| <samp>fixincludes/README</samp> for more information. The headers fixed by |
| this mechanism are installed in <samp><var>libsubdir</var>/include-fixed</samp>. |
| Along with those headers, <samp>README-fixinc</samp> is also installed, as |
| <samp><var>libsubdir</var>/include-fixed/README</samp>. |
| </p> |
| </dd> |
| <dt><samp>gcc</samp></dt> |
| <dd><p>The main sources of GCC itself (except for runtime libraries), |
| including optimizers, support for different target architectures, |
| language front ends, and testsuites. See <a href="gcc-Directory.html#gcc-Directory">The |
| <samp>gcc</samp> Subdirectory</a>, for details. |
| </p> |
| </dd> |
| <dt><samp>gnattools</samp></dt> |
| <dd><p>Support tools for GNAT. |
| </p> |
| </dd> |
| <dt><samp>include</samp></dt> |
| <dd><p>Headers for the <code>libiberty</code> library. |
| </p> |
| </dd> |
| <dt><samp>intl</samp></dt> |
| <dd><p>GNU <code>libintl</code>, from GNU <code>gettext</code>, for systems which do not |
| include it in <code>libc</code>. |
| </p> |
| </dd> |
| <dt><samp>libada</samp></dt> |
| <dd><p>The Ada runtime library. |
| </p> |
| </dd> |
| <dt><samp>libatomic</samp></dt> |
| <dd><p>The runtime support library for atomic operations (e.g. for <code>__sync</code> |
| and <code>__atomic</code>). |
| </p> |
| </dd> |
| <dt><samp>libcpp</samp></dt> |
| <dd><p>The C preprocessor library. |
| </p> |
| </dd> |
| <dt><samp>libdecnumber</samp></dt> |
| <dd><p>The Decimal Float support library. |
| </p> |
| </dd> |
| <dt><samp>libffi</samp></dt> |
| <dd><p>The <code>libffi</code> library, used as part of the Java runtime library. |
| </p> |
| </dd> |
| <dt><samp>libgcc</samp></dt> |
| <dd><p>The GCC runtime library. |
| </p> |
| </dd> |
| <dt><samp>libgfortran</samp></dt> |
| <dd><p>The Fortran runtime library. |
| </p> |
| </dd> |
| <dt><samp>libgo</samp></dt> |
| <dd><p>The Go runtime library. The bulk of this library is mirrored from the |
| <a href="http://code.google.com/p/go/">master Go repository</a>. |
| </p> |
| </dd> |
| <dt><samp>libgomp</samp></dt> |
| <dd><p>The GNU Offloading and Multi Processing Runtime Library. |
| </p> |
| </dd> |
| <dt><samp>libiberty</samp></dt> |
| <dd><p>The <code>libiberty</code> library, used for portability and for some |
| generally useful data structures and algorithms. See <a href="http://gcc.gnu.org/onlinedocs/libiberty/index.html#Top">Introduction</a> in <cite><small>GNU</small> libiberty</cite>, for more information |
| about this library. |
| </p> |
| </dd> |
| <dt><samp>libitm</samp></dt> |
| <dd><p>The runtime support library for transactional memory. |
| </p> |
| </dd> |
| <dt><samp>libjava</samp></dt> |
| <dd><p>The Java runtime library. |
| </p> |
| </dd> |
| <dt><samp>libobjc</samp></dt> |
| <dd><p>The Objective-C and Objective-C++ runtime library. |
| </p> |
| </dd> |
| <dt><samp>libquadmath</samp></dt> |
| <dd><p>The runtime support library for quad-precision math operations. |
| </p> |
| </dd> |
| <dt><samp>libssp</samp></dt> |
| <dd><p>The Stack protector runtime library. |
| </p> |
| </dd> |
| <dt><samp>libstdc++-v3</samp></dt> |
| <dd><p>The C++ runtime library. |
| </p> |
| </dd> |
| <dt><samp>lto-plugin</samp></dt> |
| <dd><p>Plugin used by the linker if link-time optimizations are enabled. |
| </p> |
| </dd> |
| <dt><samp>maintainer-scripts</samp></dt> |
| <dd><p>Scripts used by the <code>gccadmin</code> account on <code>gcc.gnu.org</code>. |
| </p> |
| </dd> |
| <dt><samp>zlib</samp></dt> |
| <dd><p>The <code>zlib</code> compression library, used by the Java front end, as |
| part of the Java runtime library, and for compressing and uncompressing |
| GCC’s intermediate language in LTO object files. |
| </p></dd> |
| </dl> |
| |
| <p>The build system in the top level directory, including how recursion |
| into subdirectories works and how building runtime libraries for |
| multilibs is handled, is documented in a separate manual, included |
| with GNU Binutils. See <a href="../configure/index.html#Top">GNU configure and build system</a> in <cite>The GNU configure and build system</cite>, for details. |
| </p> |
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