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author | Bill Traynor <wmat@alphatroop.com> | 2014-01-13 18:34:16 -0600 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-01-27 21:03:19 +0000 |
commit | 3a9593d4099edf906d9074e0b44b9b0e6ba1db94 (patch) | |
tree | f7a65a2730a40d2c106e39aa31846987b1ea5b91 /bitbake/doc/user-manual | |
parent | a713dade850b5b60d46ee78bd9092815892bc6d2 (diff) | |
download | ast2050-yocto-poky-3a9593d4099edf906d9074e0b44b9b0e6ba1db94.zip ast2050-yocto-poky-3a9593d4099edf906d9074e0b44b9b0e6ba1db94.tar.gz |
bitbake: user-manual-intro.xml: Re-write of BitBake introduction.
(Bitbake rev: afc998a73f09f3d1a0d7e22425badfa5b7001aa1)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'bitbake/doc/user-manual')
-rw-r--r-- | bitbake/doc/user-manual/user-manual-intro.xml | 55 |
1 files changed, 40 insertions, 15 deletions
diff --git a/bitbake/doc/user-manual/user-manual-intro.xml b/bitbake/doc/user-manual/user-manual-intro.xml index 4050e43..f013ee6 100644 --- a/bitbake/doc/user-manual/user-manual-intro.xml +++ b/bitbake/doc/user-manual/user-manual-intro.xml @@ -8,21 +8,46 @@ <title>Introduction</title> <para> - BitBake is a tool for executing tasks commonly performed by software - developers when building systems on a daily basis. - BitBake can build Systems consisting of numerous individual pieces - of software, or can be used to build a single application. - Example tasks that BitBake can execute are fetching source code, - applying patches to source code, configuring, compiling, and - packaging applications into a complete system, and managing metadata. - BitBake abstracts the information for completing individual tasks - into files known as recipes. - Recipes contain all of the relevant information required by BitBake - to complete a given task including dependencies, source file - locations, etc. - BitBake is similar to - <ulink url='http://www.gnu.org/software/make/'>GNU Make</ulink> - and other build tools. + fundamentally, BitBake is a generic task execution + engine that allows shell and Python tasks to be run + efficiently and in parallel while working within + complex inter-task dependency constraints. + One of BitBake's main users, OpenEmbedded, takes this core + and builds embedded Linux software stacks using + a task-oriented approach. + </para> + + <para> + Conceptually, BitBake is similar to GNU Make in + some regards but has significant differences: + <itemizedlist> + <listitem><para> + BitBake executes tasks according to provided + metadata that builds up the tasks. + Metadata is stored in recipe (<filename>.bb</filename>), + configuration (<filename>.conf</filename>), and class + (<filename>.bbclass</filename>) files and provides + BitBake with instructions on what tasks to run and + the dependencies between those tasks. + </para></listitem> + <listitem><para> + BitBake includes a fetcher library for obtaining source + code from various places such as source control + systems or websites. + </para></listitem> + <listitem><para> + The instructions for each unit to be built (e.g. a piece + of software) are known as recipe files and + contain all the information about the unit + (dependencies, source file locations, checksums, description + and so on). + </para></listitem> + <listitem><para> + BitBake includes a client/server abstraction and can + be used from a command line or used as a service over XMLRPC and + has several different user interfaces. + </para></listitem> + </itemizedlist> </para> </section> |