49 lines
2.5 KiB
HTML
49 lines
2.5 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Chapter 6. BitBake</title>
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<link rel="stylesheet" type="text/css" href="../book.css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
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<link rel="home" href="index.html" title="The Yocto Project Reference Manual">
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<link rel="up" href="index.html" title="The Yocto Project Reference Manual">
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<link rel="prev" href="structure-meta-recipes-txt.html" title="5.3.19. meta/recipes.txt">
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<link rel="next" href="ref-bitbake-parsing.html" title="6.1. Parsing">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 6. BitBake">
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<div class="titlepage"><div><div><h2 class="title">
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<a name="ref-bitbake"></a>Chapter 6. BitBake</h2></div></div></div>
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<div class="toc">
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<p><b>Table of Contents</b></p>
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<dl>
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<dt><span class="section"><a href="ref-bitbake-parsing.html">6.1. Parsing</a></span></dt>
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<dt><span class="section"><a href="ref-bitbake-providers.html">6.2. Preferences and Providers</a></span></dt>
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<dt><span class="section"><a href="ref-bitbake-dependencies.html">6.3. Dependencies</a></span></dt>
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<dt><span class="section"><a href="ref-bitbake-tasklist.html">6.4. The Task List</a></span></dt>
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<dt><span class="section"><a href="ref-bitbake-runtask.html">6.5. Running a Task</a></span></dt>
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<dt><span class="section"><a href="ref-bitbake-commandline.html">6.6. BitBake Command Line</a></span></dt>
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<dt><span class="section"><a href="ref-bitbake-fetchers.html">6.7. Fetchers</a></span></dt>
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</dl>
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</div>
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<p>
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BitBake is a program written in Python that interprets the metadata used by the OpenEmbedded
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build system.
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At some point, developers wonder what actually happens when you enter:
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</p>
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<pre class="literallayout">
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$ bitbake core-image-sato
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</pre>
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<p>
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</p>
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<p>
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This chapter provides an overview of what happens behind the scenes from BitBake's perspective.
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</p>
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<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
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<h3 class="title">Note</h3>
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BitBake strives to be a generic "task" executor that is capable of handling complex dependency relationships.
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As such, it has no real knowledge of what the tasks being executed actually do.
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BitBake just considers a list of tasks with dependencies and handles metadata
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that consists of variables in a certain format that get passed to the tasks.
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</div>
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</div></body>
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</html>
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