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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/buildroot.html | 71 |
1 files changed, 30 insertions, 41 deletions
diff --git a/docs/buildroot.html b/docs/buildroot.html index 846abe5b7..ff8c4ca65 100644 --- a/docs/buildroot.html +++ b/docs/buildroot.html @@ -32,9 +32,10 @@ <li><a href="#custom_uclibc">Customizing the uClibc configuration</a></li> <li><a href="#buildroot_innards">How Buildroot works</a></li> - <li><a href="#using_toolchain">Using the uClibc toolchain</a></li> - <li><a href="#toolchain_standalone">Using the uClibc toolchain - outside of Buildroot</a></li> + <li><a href="#multi_project"Building several projects in the + same buildroot source tree</a></li> + <li><a href="#using_toolchain">Using the uClibc toolchain + outside Buildroot</a></li> <li><a href="#downloaded_packages">Location of downloaded packages</a> </li> <li><a href="#add_software">Extending Buildroot with more @@ -524,7 +525,10 @@ $ make me<TAB> <h2><a name="multi_project" id="multi_project"></a>Building several projects in the same buildroot source tree</h2> - <p><b>BACKGROUND</b></p> + <p><i>Note: the contents of this section are obsolete since this + feature has been implemented.</i></p> + + <h3>Background</h3> <p>Buildroot has always supported building several projects in the same tree if each project was for a different architecture. </p> @@ -560,8 +564,7 @@ $ make me<TAB> was also duplicated, so each </code>package</code> would also be rebuilt once per project, resulting in even longer build times.</p> - - <p><b>PROJECT TO SHARE TOOLCHAIN AND PACKAGE BUILDS</b></p> + <h3>Project to share toolchain and package builds</h3> <p>Work has started on a project which will allow the user to build multiple root file systems for the same architecture in the same tree. @@ -591,7 +594,7 @@ $ make me<TAB> <p>Only packages, not used by the first project, will have to go through the normal extract-configure-compile flow. </p> - <p><b>IMPLEMENTATION</b></p> + <h3>Implementation</h3> <p>The core of the solution is the introduction of two new directories: </p> @@ -646,7 +649,7 @@ $ make me<TAB> <p>The resulting binaries for all architectures are stored in the <code>"$(BINARIES_DIR)"</code> directory. <p> - <p><b>SUMMARY</b></p> + <h3>Summary</h3> <p>The project will share directories which can be share without conflicts, but will use unique build directories, where the user @@ -693,7 +696,7 @@ $ make me<TAB> defaults to "make menuconfig". </p> - <h2><a name="Todo" id="Todo"></a>Todo</h2> + <h3>Todo</h3> <ol> <li>Configurable packages</li> @@ -763,7 +766,7 @@ $ make me<TAB> </ol> <h2><a name="using_toolchain" id="using_toolchain"></a>Using the - uClibc toolchain</h2> + uClibc toolchain outside Buildroot</h2> <p>You may want to compile your own programs or other software that are not packaged in Buildroot. In order to do this, you can @@ -791,32 +794,19 @@ export PATH="$PATH:~/buildroot/build_mips/staging_dir/usr/bin/" mips-linux-gcc -o foo foo.c </pre> - <p><b>Important</b> : do not try to move a gcc-3.x toolchain to an other - directory, it won't work. There are some hardcoded paths in the - <i>gcc</i> configuration. If the default toolchain directory - doesn't suit your needs, please refer to the <a - href="#toolchain_standalone">Using the uClibc toolchain outside of - buildroot</a> section. </p> - <p>If you are using a current gcc-4.x, then use --sysroot and -isysroot - since these toolchains have fully functional sysroot support. No - hardcoded paths do exist in these configurations. </p> - - <h2><a name="toolchain_standalone" id="toolchain_standalone"></a>Using the - uClibc toolchain outside of buildroot</h2> - - <p>By default, the cross-compilation toolchain is generated inside - <code>build_ARCH/staging_dir/</code>. But sometimes, it may be useful to - install it somewhere else, so that it can be used to compile other programs - or by other users. Moving the <code>build_ARCH/staging_dir/</code> - directory elsewhere is <b>not possible if using gcc-3.x</b>, because there - are some hardcoded paths in the toolchain configuration. This works, thanks - to sysroot support, with current, stable gcc-4.x toolchains, of course. </p> - - <p>If you want to use the generated gcc-3.x toolchain for other purposes, - you can configure Buildroot to generate it elsewhere using the - option of the configuration tool : <code>Build options -> - Toolchain and header file location</code>, which defaults to - <code>$(BUILD_DIR)/staging_dir/</code>. </p> + <p><b>Important</b> : do not try to move a gcc-3.x toolchain to an other + directory, it won't work. There are some hardcoded paths in the + <i>gcc</i> configuration. If you are using a current gcc-4.x, it + is possible to relocate the toolchain, but then + <code>--sysroot</code> must be passed every time the compiler is + called to tell where the libraries and header files are, which + might be cumbersome.</p> + + <p>It is also possible to generate the Buildroot toolchain in + another directory than <code>build_ARCH/staging_dir</code> using + the <code>Build options -> Toolchain and header file + location</code> option. This could be useful if the toolchain + must be shared with other users.</p> <h2><a name="downloaded_packages" id="downloaded_packages"></a>Location of downloaded packages</h2> @@ -1173,13 +1163,12 @@ endif <li><a href="http://www.uclibc.org/">http://www.uclibc.org/</a></li> <li><a href="http://www.busybox.net/">http://www.busybox.net/</a></li> </ul> - </div> <!-- - <a href="http://validator.w3.org/check?uri=referer"><img - border="0" height="31" width="88" - src="images/valid-html401.png" - alt="Valid HTML"></img></a> + <a href="http://validator.w3.org/check?uri=referer"><img + border="0" height="31" width="88" + src="images/valid-html401.png" + alt="Valid HTML"></img></a> --> </body> |