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Ciro Santilli
2025-05-10 07:50:53 +01:00
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commit 0a2a05fe28
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<meta name="description" content="The perfect emulation setup to study and develop the &lt;&lt;linux-kernel&gt;&gt; v5.9.2, kernel modules, &lt;&lt;qemu-buildroot-setup,QEMU&gt;&gt;, &lt;&lt;gem5-buildroot-setup,gem5&gt;&gt; and x86_64, ARMv7 and ARMv8 &lt;&lt;userland-assembly,userland&gt;&gt; and &lt;&lt;baremetal-setup,baremetal&gt;&gt; assembly, &lt;&lt;c,ANSI C&gt;&gt;, &lt;&lt;cpp,C++&gt;&gt; and &lt;&lt;posix,POSIX&gt;&gt;. &lt;&lt;gdb&gt;&gt; and &lt;&lt;kgdb&gt;&gt; just work. Powered by &lt;&lt;about-the-qemu-buildroot-setup,Buildroot&gt;&gt; and &lt;&lt;about-the-baremetal-setup,crosstool-NG&gt;&gt;. Highly automated. Thoroughly documented. Automated &lt;&lt;test-this-repo,tests&gt;&gt;. "Tested" in an Ubuntu 20.04 host.">
<meta name="description" content="The perfect emulation setup to study and develop the &lt;&lt;linux-kernel&gt;&gt; v5.9.2, kernel modules, &lt;&lt;qemu-buildroot-setup,QEMU&gt;&gt;, &lt;&lt;gem5-buildroot-setup,gem5&gt;&gt; and x86_64, ARMv7 and ARMv8 &lt;&lt;userland-assembly,userland&gt;&gt; and &lt;&lt;baremetal-setup,baremetal&gt;&gt; assembly, &lt;&lt;c,ANSI C&gt;&gt;, &lt;&lt;cpp,C++&gt;&gt; and &lt;&lt;posix,POSIX&gt;&gt;. EVERYTHING is built from source. &lt;&lt;gdb&gt;&gt; and &lt;&lt;kgdb&gt;&gt; just work. Powered by &lt;&lt;about-the-qemu-buildroot-setup,Buildroot&gt;&gt; and &lt;&lt;about-the-baremetal-setup,crosstool-NG&gt;&gt;. Highly automated. Thoroughly documented. Automated &lt;&lt;test-this-repo,tests&gt;&gt;. "Tested" in an Ubuntu 20.04 host.">
<title>Linux Kernel Module Cheat</title>
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@@ -462,13 +462,37 @@ pre{ white-space:pre }
<p><a href="https://zenodo.org/badge/latestdoi/64534859"><span class="image"><img src="https://zenodo.org/badge/64534859.svg" alt="64534859"></span></a></p>
</div>
<div class="paragraph">
<p>The perfect emulation setup to study and develop the <a href="linux-kernel.html">Linux kernel</a> v5.9.2, kernel modules, <a href="qemu-buildroot-setup.html">QEMU</a>, <a href="gem5-buildroot-setup.html">gem5</a> and x86_64, ARMv7 and ARMv8 <a href="userland-assembly.html">userland</a> and <a href="baremetal-setup.html">baremetal</a> assembly, <a href="c.html">ANSI C</a>, <a href="cpp.html">C++</a> and <a href="posix.html">POSIX</a>. <a href="gdb.html">GDB step debug</a> and <a href="kgdb.html">KGDB</a> just work. Powered by <a href="about-the-qemu-buildroot-setup.html">Buildroot</a> and <a href="about-the-baremetal-setup.html">crosstool-NG</a>. Highly automated. Thoroughly documented. Automated <a href="test-this-repo.html">tests</a>. "Tested" in an Ubuntu 20.04 host.</p>
<p>The perfect emulation setup to study and develop the <a href="linux-kernel.html">Linux kernel</a> v5.9.2, kernel modules, <a href="qemu-buildroot-setup.html">QEMU</a>, <a href="gem5-buildroot-setup.html">gem5</a> and x86_64, ARMv7 and ARMv8 <a href="userland-assembly.html">userland</a> and <a href="baremetal-setup.html">baremetal</a> assembly, <a href="c.html">ANSI C</a>, <a href="cpp.html">C++</a> and <a href="posix.html">POSIX</a>. EVERYTHING is built from source. <a href="gdb.html">GDB step debug</a> and <a href="kgdb.html">KGDB</a> just work. Powered by <a href="about-the-qemu-buildroot-setup.html">Buildroot</a> and <a href="about-the-baremetal-setup.html">crosstool-NG</a>. Highly automated. Thoroughly documented. Automated <a href="test-this-repo.html">tests</a>. "Tested" in an Ubuntu 20.04 host.</p>
</div>
<div class="paragraph">
<p><a href="https://twitter.com/dakami/status/1344853681749934080">Dan Kaminski-approved</a><a href="https://en.wikipedia.org/wiki/Dan_Kaminsky">RIP</a>.</p>
</div>
<div class="paragraph">
<p>TL;DR: <a href="qemu-buildroot-setup-getting-started.html">Section 2.2.1, &#8220;QEMU Buildroot setup getting started&#8221;</a></p>
<p>TL;DR: <a href="qemu-buildroot-setup-getting-started.html">Section 2.2.1, &#8220;QEMU Buildroot setup getting started&#8221;</a> tested on Ubuntu 24.04:</p>
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<div class="literalblock">
<div class="content">
<pre>git clone https://github.com/cirosantilli/linux-kernel-module-cheat
cd linux-kernel-module-cheat
sudo apt install docker
python3 -m venv .venv
. .venv/bin/activate
./setup
./run-docker create
./run-docker sh</pre>
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</div>
<div class="paragraph">
<p>This leaves you inside a Docker shell. Then inside Docker:</p>
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<div class="literalblock">
<div class="content">
<pre>./build --download-dependencies qemu-buildroot
./run</pre>
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</div>
<div class="paragraph">
<p>and you are now in a Linux userland shell running on QEMU with everything built fully from source.</p>
</div>
<div class="paragraph">
<p>The source code for this page is located at: <a href="https://github.com/cirosantilli/linux-kernel-module-cheat" class="bare">https://github.com/cirosantilli/linux-kernel-module-cheat</a>. Due to <a href="https://github.com/isaacs/github/issues/1610">a GitHub limitation</a>, this README is too long and not fully rendered on github.com, so either use:</p>
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