Android/Building: Difference between revisions

Revision as of 05:58, 21 July 2014

How to build an Android and OLPC OS dual-boot image for XO-4.

set up a build environment, see Initializing a Build Environment,
install Repo, by following only the Installing Repo section of the Downloading the Source guide,
use Repo to download the Android source from OLPC repositories,

$ repo init -u git://dev.laptop.org/users/ben/android_manifest -b android-4.3.1-xo4
$ repo sync

go to #Source code see what patches are applied to which repository and check source code before start the build.

$ . build/envsetup.sh
$ lunch 14
$ make installclean && make -j8

$ cd vendor/olpc/xo4/mkzd
$ ./mkzd.sh

ensure you have a copy of the OLPC OS Linux, Sugar and Gnome build file, e.g. 32013o4.zd,

$ cd vendor/olpc/xo4/sugar-combiner
$ ./mkzd.sh

To merge an already published Android build with an already published OLPC OS derived build:

download the system.img, ramdisk.img, and kernel files from the Android build directory,
download the build derived from OLPC OS, e.g. 32013xx4.zd or 4_0b125.zd,
download the mkzd.sh tool, and edit it to match file names,
run mkzd.sh

source code for building Android is a combination of 4 parts.

You can also download kernel image form device/olpc/xo4-kernel git repository if you don't want to change kernel

source code from google AOSP project branch "android-4.3.1_r1". "Downloading the Source" guide
OLPC patches for AOSP project.

frameworks/av	git repository
frameworks/base	git repository
frameworks/native	git repository
system/core	git repository
hardware/libhardware	git repository
hardware/libhardware_legacy	git repository
hardware/marvell	git repository
build	git repository
bionic	git repository
external/bluetooth/bluedroid	git repository
external/kernel-headers	git repository
external/webkit	git repository
packages/apps/Calendar	git repository
packages/apps/Gallery2	git repository
packages/apps/Launcher2	git repository
packages/providers/CalendarProvider	git repository

vendor/marvell/generic	git repository (not available)
vendor/marvell/external	git repository (not available)
vendor/olpc/xo4	git repository
device/olpc/xo4	git repository
device/olpc/xo4-kernel	git repository

@@ Line 8: / Line 8: @@
 == Method ==
-* follow the [http://source.android.com/source/downloading.html "Downloading the Source" guide] to install Repo,
+* set up a build environment, see [https://source.android.com/source/initializing.html Initializing a Build Environment],
+* install Repo, by following only the [http://source.android.com/source/downloading.html#installing-repo Installing Repo] section of the Downloading the Source guide,
 * use Repo to download the Android source from OLPC repositories,
  $ repo init -u git://dev.laptop.org/users/ben/android_manifest -b android-4.3.1-xo4
  $ repo sync
 * go to [[#Source code]] see what patches are applied to which repository and check source code before start the build.
+:* Why? --[[User:Quozl|Quozl]] 05:58, 21 July 2014 (UTC)
-* ensure you installed all the tools needed to build Android [https://source.android.com/source/initializing.html Initializing a Build Environment]
 * start the build:
  $ . build/envsetup.sh