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Diffstat (limited to 'docs/buildroot.html')
| -rw-r--r-- | docs/buildroot.html | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/docs/buildroot.html b/docs/buildroot.html index f471962ad..b6cf578bd 100644 --- a/docs/buildroot.html +++ b/docs/buildroot.html @@ -29,6 +29,7 @@ <li><a href="#buildroot_innards">How Buildroot works</a></li> <li><a href="#using_toolchain">Using the uClibc toolchain outside Buildroot</a></li> <li><a href="#external_toolchain">Use an external toolchain</a></li> + <li><a href="#ccache-support">Using <code>ccache</code> in Buildroot</li> <li><a href="#downloaded_packages">Location of downloaded packages</a></li> <li><a href="#add_packages">Adding new packages to Buildroot</a></li> <li><a href="#board_support">Creating your own board support</a></li> @@ -523,9 +524,8 @@ $(ZLIB_DIR)/libz.a: $(ZLIB_DIR)/.configured <ul> <li><b>toolchain</b> (in the <code>toolchain/</code> directory) contains the Makefiles and associated files for all software related to the - cross-compilation toolchain: <code>binutils</code>, <code>ccache</code>, - <code>gcc</code>, <code>gdb</code>, <code>kernel-headers</code> and - <code>uClibc</code>.</li> + cross-compilation toolchain: <code>binutils</code>, <code>gcc</code>, + <code>gdb</code>, <code>kernel-headers</code> and <code>uClibc</code>.</li> <li><b>package</b> (in the <code>package/</code> directory) contains the Makefiles and associated files for all user-space tools that Buildroot @@ -681,6 +681,31 @@ endif Build options -> Toolchain and header file location</code> options. This could be useful if the toolchain must be shared with other users.</p> + <h2 id="ccache-support">Using <code>ccache</code> in Buildroot</h2> + + <p><a href="http://ccache.samba.org">ccache</a> is a compiler + cache. It stores the object files resulting from each compilation + process, and is able to skip future compilation of the same source + file (with same compiler and same arguments) by using the + pre-existing object files. When doing almost identical builds from + scratch a number of times, it can nicely speed up the build + process.</p> + + <p><code>ccache</code> support is integrated in Buildroot. You + just have to enable <code>Enable compiler cache</code> + in <code>Build options</code>. This will automatically build + <code>ccache</code> and use it for every host and target + compilation.</p> + + <p>The cache is located + in <code>$HOME/.buildroot-ccache</code>. It is stored outside of + Buildroot output directory so that it can be shared by separate + Buildroot builds. If you want to get rid of the cache, simply + remove this directory.</p> + + <p>You can get statistics on the cache (its size, number of hits, + misses, etc.) by running <code>make ccache-stats</code>.</p> + <h2 id="downloaded_packages">Location of downloaded packages</h2> <p>It might be useful to know that the various tarballs that are |