Project status

This project is not actively developed anymore. These build scripts were merged into a more advanced project https://github.com/nmeum/android-tools project.

Please switch to https://github.com/nmeum/android-tools

Build script for Android platform tools

Android tools like fastboot and adb are essential system components that help to deal with Android devices effectively.

Unfortunately Android has a huge and monolithic build system that does not allow to build these components individually. If one wants to build fastboot then the whole Android development environment needs to be downloaded. It consists of many gigabytes of source code and prebuilt binaries. This makes impractical for a Linux ditro manitainer to build the tools from sources using the standard build system.

This project tries to partially mimic Android build system and provide an easy way to build the tools using only small subset of the Android source tree.

Using the build scripts

To build Android tools at your system please do:

• Copy build.ninja and deployagent.jar to you build directory
• Clone following Android sources

https://android.googlesource.com/platform/frameworks/base
https://android.googlesource.com/platform/frameworks/native
https://android.googlesource.com/platform/system/core
https://android.googlesource.com/platform/system/extras
https://android.googlesource.com/platform/system/libbase
https://android.googlesource.com/platform/system/libziparchive
https://android.googlesource.com/platform/system/tools/mkbootimg
https://android.googlesource.com/platform/external/selinux
https://android.googlesource.com/platform/external/f2fs-tools
https://android.googlesource.com/platform/external/e2fsprogs
https://android.googlesource.com/platform/external/avb
https://android.googlesource.com/platform/external/boringssl

• Checkout it to platform-tools-$PLATFORM_TOOLS_VERSION tag you work with (see current version PLATFORM_TOOLS_VERSION in generate_build.rb file):

for d in base native core extras libbase libziparchive mkbootimg selinux f2fs-tools e2fsprogs avb boringssl; do pushd $d; git checkout platform-tools-30.0.4; popd; done

• Apply patches from ./patches directory using cd $DIR; patch -p1 $PATCH_FILE
• Build boringssl with cd boringssl/src/build && cmake -GNinja .. && ninja crypto/libcrypto.a ssl/libssl.a
• Build tools with ninja
• There going to be Android binaries ready for use: fastboot adb mke2fs.android e2fsdroid ext2simg avb/avbtool

Rebuilding deplyagent.jar

deployagent.jar is a binary pre-build from Android sources. Building this java library requires way too many dependencies: java, protobuf-java, dex compiler, Android base libs.

To avoid the complexity we prebuilt the lib from the Android sources directly using following instructions:

source build/envsetup.sh
lunch full-eng
mmm system/core/adb/
cp ./target/product/generic/system/framework/deployagent.jar .

See https://wiki.archlinux.org/index.php/Android for how to setup the dev environment