add emulator kernel build instructions

Initially only covers building the 5.15 kernel for x86_64. Can be
extended to covering 5.10 and arm64 too.
This commit is contained in:
Daniel Micay 2023-04-13 09:57:46 -04:00
parent 1dd411d3f7
commit 785326f47a

View File

@ -97,6 +97,7 @@
<li>
<a href="#kernel">Kernel</a>
<ul>
<li><a href="#kernel-emulator">Emulator</a></li>
<li><a href="#kernel-4th-generation-pixels">4th generation Pixels</a></li>
<li><a href="#kernel-5th-generation-pixels">5th generation Pixels</a></li>
<li><a href="#kernel-6th-generation-pixels">6th generation Pixels</a></li>
@ -715,6 +716,27 @@ cd ../..</pre>
<li>binutils (for the host, not the target)</li>
</ul>
<section id="kernel-emulator">
<h4><a href="#kernel-emulator">Emulator</a></h4>
<pre>mkdir -p android/kernel/5.15
cd android/kernel/5.15
repo init -u https://github.com/GrapheneOS/kernel_manifest-5.15.git -b 13
repo sync -j8</pre>
<p>To build the 5.15 kernel image and modules for the emulator:</p>
<pre>BUILD_CONFIG=common/build.config.gki.x86_64 build/build.sh
BUILD_CONFIG=common-modules/virtual-device/build.config.virtual_device.x86_64 build/build.sh</pre>
<p>Replace the prebuilts in the OS source tree:</p>
<pre>ANDROID_BUILD_TOP=~/android/grapheneos-13
cp out/android13-5.15/dist/bzImage $ANDROID_BUILD_TOP/kernel/prebuilts/5.15/x86_64/kernel-5.15
cp out/android13-5.15/dist/System.map $ANDROID_BUILD_TOP/kernel/prebuilts/5.15/x86_64/System.map
cp out/android13-5.15/dist/*.ko $ANDROID_BUILD_TOP/kernel/prebuilts/common-modules/virtual-device/5.15/x86-64/</pre>
</section>
<section id="kernel-4th-generation-pixels">
<h4><a href="#kernel-4th-generation-pixels">4th generation Pixels</a></h4>