user: Add "Bootstrap the RTEMS Sources"

user/start/bootstrap.rst

@@ -0,0 +1,55 @@
+.. SPDX-License-Identifier: CC-BY-SA-4.0
+
+.. Copyright (C) 2019 embedded brains GmbH
+.. Copyright (C) 2019 Sebastian Huber
+
+.. _QuickStartBootstrap:
+
+Bootstrap the RTEMS Sources
+===========================
+
+You installed the tool suite in your installation prefix and cloned two RTEMS
+repositories in the previous sections.  We installed the tool suite in
+:file:`$HOME/quick-start/rtems/5` and cloned the repositories in
+:file:`$HOME/quick-start/src`.
+
+If you use source archives of a released RTEMS version, then you can skip this
+section.
+
+Before you can build a :ref:`Board Support Package (BSP) <BSPs>` for your
+target hardware, you have to bootstrap the build system in the RTEMS sources.
+This is only necessary, if you use a Git repository clone of the RTEMS sources.
+You have to do this after a fresh repository clone and sometimes after build
+system file updates (e.g.  after a ``git pull``).  If you are not a build
+system expert, then do the bootstrap after each update of build system files.
+This is a bit annoying, but improving the build system is a complex and time
+consuming undertaking.  Feel free to help the RTEMS Project to improve it.  For
+the bootstrap it is important that the right version of Autotools
+(:file:`autoconf` and :file:`automake`) are in your ``$PATH``.  The right
+version of Autotools is shipped with the RTEMS tool suite you already
+installed.
+
+.. code-block:: none
+
+    cd $HOME/quick-start/src/rtems
+    export PATH=$HOME/quick-start/rtems/5/bin:"$PATH"
+    ./bootstrap -c
+    $HOME/quick-start/src/rsb/source-builder/sb-bootstrap
+
+These commands should output something like this (omitted lines are denoted by
+...):
+
+.. code-block:: none
+
+    removing automake generated Makefile.in files
+    removing configure files
+    removing aclocal.m4 files
+    $ $HOME/quick-start/src/rsb/source-builder/sb-bootstrap
+    RTEMS Source Builder - RTEMS Bootstrap, 5 (f07504d27192)
+      1/120: autoreconf: configure.ac
+      2/120: autoreconf: c/configure.ac
+      3/120: autoreconf: c/src/configure.ac
+      4/120: autoreconf: c/src/lib/libbsp/arm/configure.ac
+    ...
+    120/120: autoreconf: testsuites/tmtests/configure.ac
+    Bootstrap time: 0:00:48.744222

user/start/index.rst

@@ -20,6 +20,7 @@ applications on top of RTEMS.
     prefixes
     sources
     tools
+    bootstrap
 
 The following is a quick start guide that provides a basic set of commands to
 build the RTEMS Tools and Kernel. The quick start guide provides links to the