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move kernel build to prebuilt section
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‎static/build.html

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@@ -70,15 +70,6 @@ <h2><a href="#table-of-contents">Table of contents</a></h2>
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</ul>
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</li>
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<li><a href="#updating-and-switching-branches-or-tags">Updating and switching branches or tags</a></li>
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<li>
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<a href="#kernel">Kernel</a>
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<ul>
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<li><a href="#kernel-4th-generation-pixels">4th generation Pixels</a></li>
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<li><a href="#kernel-5th-generation-pixels">5th generation Pixels</a></li>
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<li><a href="#kernel-6th-generation-pixels">6th generation Pixels</a></li>
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<li><a href="#kernel-7th-generation-pixels">7th generation Pixels</a></li>
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</ul>
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</li>
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<li><a href="#extracting-vendor-files-for-pixel-devices">Extracting vendor files for Pixel devices</a></li>
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<li><a href="#setting-up-the-os-build-environment">Setting up the OS build environment</a></li>
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<li><a href="#reproducible-builds">Reproducible builds</a></li>
@@ -103,6 +94,15 @@ <h2><a href="#table-of-contents">Table of contents</a></h2>
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<li>
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<a href="#prebuilt-code">Prebuilt code</a>
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<ul>
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<li>
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<a href="#kernel">Kernel</a>
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<ul>
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<li><a href="#kernel-4th-generation-pixels">4th generation Pixels</a></li>
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<li><a href="#kernel-5th-generation-pixels">5th generation Pixels</a></li>
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<li><a href="#kernel-6th-generation-pixels">6th generation Pixels</a></li>
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<li><a href="#kernel-7th-generation-pixels">7th generation Pixels</a></li>
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</ul>
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</li>
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<li><a href="#browser-and-webview">Browser and WebView</a></li>
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<li><a href="#prebuilt-apps">Prebuilt apps</a></li>
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</ul>
@@ -257,21 +257,6 @@ <h3><a href="#build-dependencies">Build dependencies</a></h3>
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a fully self-contained build process with minimal external dependencies is gradual and
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there are still dependencies that need to be installed on the host system.</p>
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<p>The Linux kernel build process is not integrated into the rest of the AOSP build
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process, but does reuse the same prebuilts to make the build reproducible.</p>
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<p>Additional Linux kernel build dependencies not provided by the source tree:</p>
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<ul>
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<li>libgcc (for the host, not the target)</li>
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<li>binutils (for the host, not the target)</li>
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</ul>
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<p>The dependency on the host libgcc and binutils for building utilities during the
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build process will be phased out by moving to a pure LLVM-based toolchain alongside
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doing it for the target. This is lagging a bit behind for the kernel, particularly
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code built for the host.</p>
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<p>Additional Android Open Source Project build dependencies not provided by the
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source tree:</p>
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@@ -391,108 +376,6 @@ <h3><a href="#updating-and-switching-branches-or-tags">Updating and switching br
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GrapheneOS only provides a stable history via tags.</p>
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</section>
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<section id="kernel">
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<h3><a href="#kernel">Kernel</a></h3>
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<p>The kernel needs to be built in advance, since it uses a separate build system.</p>
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<p>Prebuilts are provided for all the officially supported devices, so this step
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is optional.</p>
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<section id="kernel-4th-generation-pixels">
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<h4><a href="#kernel-4th-generation-pixels">4th generation Pixels</a></h4>
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<pre>mkdir -p android/kernel/coral
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cd android/kernel/coral
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repo init -u https://github.com/GrapheneOS/kernel_manifest-coral.git -b 13
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repo sync -j16</pre>
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<p>To build the coral kernel for the Pixel 4 and Pixel 4 XL:</p>
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<pre>KBUILD_BUILD_VERSION=1 KBUILD_BUILD_USER=build-user KBUILD_BUILD_HOST=build-host KBUILD_BUILD_TIMESTAMP="Thu 01 Jan 1970 12:00:00 AM UTC" BUILD_CONFIG=private/msm-google/build.config.floral build/build.sh</pre>
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<p>To build the sunfish kernel for the Pixel 4a:</p>
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<pre>KBUILD_BUILD_VERSION=1 KBUILD_BUILD_USER=build-user KBUILD_BUILD_HOST=build-host KBUILD_BUILD_TIMESTAMP="Thu 01 Jan 1970 12:00:00 AM UTC" BUILD_CONFIG=private/msm-google/build.config.sunfish build/build.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/coral-kernel/</code> or
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<code>device/google/sunfish-kernel/</code> with your build in
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<code>out/android-msm-pixel-4.14/dist/</code>.</p>
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</section>
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<section id="kernel-5th-generation-pixels">
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<h4><a href="#kernel-5th-generation-pixels">5th generation Pixels</a></h4>
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<p>For 5th generation Pixels:</p>
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<pre>mkdir -p android/kernel/redbull
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cd android/kernel/redbull
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repo init -u https://github.com/GrapheneOS/kernel_manifest-redbull.git -b 13
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repo sync -j16</pre>
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<p>To build the redbull kernel for the Pixel 4a (5G), Pixel 5 and Pixel 5a
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kernel:</p>
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<pre>BUILD_CONFIG=private/msm-google/build.config.redbull.vintf build/build.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/redbull-kernel/</code> (userdebug/eng) and
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<code>device/google/redbull-kernel/vintf/</code> (user) with your build in
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<code>out/android-msm-pixel-4.19/dist/</code>.</p>
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</section>
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<section id="kernel-6th-generation-pixels">
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<h4><a href="#kernel-6th-generation-pixels">6th generation Pixels</a></h4>
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<p>To sync the raviole kernel for the Pixel 6 and Pixel 6 Pro:</p>
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<pre>mkdir -p android/kernel/raviole
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cd android/kernel/raviole
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repo init -u https://github.com/GrapheneOS/kernel_manifest-raviole.git -b 13
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repo sync -j16</pre>
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<p>To sync the bluejay kernel for the Pixel 6a:</p>
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<pre>mkdir -p android/kernel/bluejay
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cd android/kernel/bluejay
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repo init -u https://github.com/GrapheneOS/kernel_manifest-bluejay.git -b 13
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repo sync -j16</pre>
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<p>To build the raviole kernel for the Pixel 6 and Pixel 6 Pro:</p>
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<pre>LTO=full BUILD_KERNEL=1 ./build_slider.sh</pre>
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<p>To build the bluejay kernel for the Pixel 6a:</p>
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<pre>LTO=full BUILD_KERNEL=1 ./build_bluejay.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/raviole-kernel/</code> or
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<code>device/google/bluejay-kernel/</code> with your build in
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<code>out/mixed/dist/</code>.</p>
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</section>
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<section id="kernel-7th-generation-pixels">
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<h4><a href="#kernel-7th-generation-pixels">7th generation Pixels</a></h4>
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<p>To sync the pantah kernel for the Pixel 7 and Pixel 7 Pro:</p>
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<pre>mkdir -p android/kernel/pantah
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cd android/kernel/pantah
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repo init -u https://github.com/GrapheneOS/kernel_manifest-pantah.git -b 13
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repo sync -j16</pre>
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<p>To build the pantah kernel for the Pixel 7 and Pixel 7 Pro:</p>
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<pre>LTO=full BUILD_AOSP_KERNEL=1 ./build_cloudripper.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/pantah-kernel/</code> with your build in
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<code>out/mixed/dist/</code>.</p>
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</section>
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</section>
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<section id="extracting-vendor-files-for-pixel-devices">
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<h3><a href="#extracting-vendor-files-for-pixel-devices">Extracting vendor files for Pixel devices</a></h3>
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@@ -816,6 +699,123 @@ <h2><a href="#prebuilt-code">Prebuilt code</a></h2>
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separately and then bundled into the source tree as binaries. This section will be
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gradually expanded to cover building all of it.</p>
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<section id="kernel">
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<h3><a href="#kernel">Kernel</a></h3>
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<p>The Linux kernel is built separately using an AOSP kernel build system
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wrapping the upstream Linux kernel build system. Since it's a separate build
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system from the rest of the OS, the kernels are built separately. Many of the
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repositories are shared with the rest of the OS including the repositories
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providing the prebuilt toolchain for reproducible builds not depending on the
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tools from the host OS.</p>
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<p>Additional Linux kernel build dependencies beyond the AOSP dependencies not
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provided by the source tree:</p>
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<ul>
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<li>libgcc (for the host, not the target)</li>
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<li>binutils (for the host, not the target)</li>
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</ul>
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<p>The dependency on the host libgcc and binutils for building utilities during the
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build process will be phased out by moving to a pure LLVM-based toolchain alongside
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doing it for the target. This is lagging a bit behind for the kernel, particularly
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code built for the host.</p>
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<section id="kernel-4th-generation-pixels">
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<h4><a href="#kernel-4th-generation-pixels">4th generation Pixels</a></h4>
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<pre>mkdir -p android/kernel/coral
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cd android/kernel/coral
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repo init -u https://github.com/GrapheneOS/kernel_manifest-coral.git -b 13
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repo sync -j16</pre>
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<p>To build the coral kernel for the Pixel 4 and Pixel 4 XL:</p>
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<pre>KBUILD_BUILD_VERSION=1 KBUILD_BUILD_USER=build-user KBUILD_BUILD_HOST=build-host KBUILD_BUILD_TIMESTAMP="Thu 01 Jan 1970 12:00:00 AM UTC" BUILD_CONFIG=private/msm-google/build.config.floral build/build.sh</pre>
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<p>To build the sunfish kernel for the Pixel 4a:</p>
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<pre>KBUILD_BUILD_VERSION=1 KBUILD_BUILD_USER=build-user KBUILD_BUILD_HOST=build-host KBUILD_BUILD_TIMESTAMP="Thu 01 Jan 1970 12:00:00 AM UTC" BUILD_CONFIG=private/msm-google/build.config.sunfish build/build.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/coral-kernel/</code> or
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<code>device/google/sunfish-kernel/</code> with your build in
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<code>out/android-msm-pixel-4.14/dist/</code>.</p>
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</section>
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<section id="kernel-5th-generation-pixels">
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<h4><a href="#kernel-5th-generation-pixels">5th generation Pixels</a></h4>
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<p>For 5th generation Pixels:</p>
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<pre>mkdir -p android/kernel/redbull
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cd android/kernel/redbull
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repo init -u https://github.com/GrapheneOS/kernel_manifest-redbull.git -b 13
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repo sync -j16</pre>
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<p>To build the redbull kernel for the Pixel 4a (5G), Pixel 5 and Pixel 5a
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kernel:</p>
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<pre>BUILD_CONFIG=private/msm-google/build.config.redbull.vintf build/build.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/redbull-kernel/</code> (userdebug/eng) and
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<code>device/google/redbull-kernel/vintf/</code> (user) with your build in
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<code>out/android-msm-pixel-4.19/dist/</code>.</p>
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</section>
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<section id="kernel-6th-generation-pixels">
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<h4><a href="#kernel-6th-generation-pixels">6th generation Pixels</a></h4>
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<p>To sync the raviole kernel for the Pixel 6 and Pixel 6 Pro:</p>
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<pre>mkdir -p android/kernel/raviole
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cd android/kernel/raviole
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repo init -u https://github.com/GrapheneOS/kernel_manifest-raviole.git -b 13
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repo sync -j16</pre>
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<p>To sync the bluejay kernel for the Pixel 6a:</p>
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<pre>mkdir -p android/kernel/bluejay
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cd android/kernel/bluejay
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repo init -u https://github.com/GrapheneOS/kernel_manifest-bluejay.git -b 13
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repo sync -j16</pre>
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<p>To build the raviole kernel for the Pixel 6 and Pixel 6 Pro:</p>
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<pre>LTO=full BUILD_KERNEL=1 ./build_slider.sh</pre>
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<p>To build the bluejay kernel for the Pixel 6a:</p>
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<pre>LTO=full BUILD_KERNEL=1 ./build_bluejay.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/raviole-kernel/</code> or
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<code>device/google/bluejay-kernel/</code> with your build in
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<code>out/mixed/dist/</code>.</p>
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</section>
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<section id="kernel-7th-generation-pixels">
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<h4><a href="#kernel-7th-generation-pixels">7th generation Pixels</a></h4>
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<p>To sync the pantah kernel for the Pixel 7 and Pixel 7 Pro:</p>
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<pre>mkdir -p android/kernel/pantah
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cd android/kernel/pantah
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repo init -u https://github.com/GrapheneOS/kernel_manifest-pantah.git -b 13
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repo sync -j16</pre>
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<p>To build the pantah kernel for the Pixel 7 and Pixel 7 Pro:</p>
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<pre>LTO=full BUILD_AOSP_KERNEL=1 ./build_cloudripper.sh</pre>
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<p>Replace the files in the OS source tree at
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<code>device/google/pantah-kernel/</code> with your build in
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<code>out/mixed/dist/</code>.</p>
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</section>
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</section>
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<section id="browser-and-webview">
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<h3><a href="#browser-and-webview">Browser and WebView</a></h3>
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