CM-T335: Android: Building images - Revision history

Ilya: /* Applying Patches */

2015-07-14T11:11:11Z

‎Applying Patches

Igor: /* Android Image */

2014-11-04T11:44:32Z

‎Android Image

Ilya: /* Installing Repo */

2014-07-07T07:31:29Z

‎Installing Repo

Ilya: /* Applying Patches */

2014-04-24T07:30:38Z

‎Applying Patches

Grinberg: /* Host Setup */

2013-09-09T10:15:13Z

‎Host Setup

New page

= Android Image =
The Android Demo filesystem image for CM-T335 is based on [http://software-dl.ti.com/dsps/dsps_public_sw/sdo_tii/TI_Android_DevKit/TI_Android_JB_4_1_2_DevKit_4_0_1/index_FDS.html Android Jelly Bean 4.1.2] distribution for TI's Sitara(TM) AM335x ARM Cortex(TM) A8 Processors.

== Host Setup ==
Rowboat Jelly Bean sources can be built only on 64-bit hosts. The current build is tested on Ubuntu 12.04 (64-bit).
This article assumes that the [http://source.android.com/source/initializing.html Getting Started] instructions have been followed precisely and the same directory structure and all the tools were installed.
The section {{parameter|Installing the JDK}} of the Getting Started instructions should be skipped.
Also this article will use the $ANDROID_BASE variable to denote the base directory of the Rowboat Android sources.

== Java JDK Setup ==
Default Ubuntu installation comes with OpenJDK which does not work for building the Rowboat Android JB sources.
To over come this problem, the Sun Java JDK must be used. Current build was tested with Java SE Development Kit 6u38.
This or later version (from now we assume it's {{parameter|XX}}) can be downloaded from [http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase6-419409.html here].
Please use the Linux x64 bin installer.
Install the JDK into any location.
Also this article will use the $JDK_HOME variable to denote the JDK install directory.
<pre>
cd $JDK_HOME
cp /path/to/jdk/jdk-6uXX-linux-x64.bin $JDK_HOME
chmod a+x jdk-6uXX-linux-x64.bin
./jdk-6uXX-linux-x64.bin
</pre>

== Installing Repo ==
Repo is a tool that helps to fetch the Rowboat Android sources.
Please refer to [http://source.android.com/source/developing.html Android Developing] for more information about Repo.
This article will use the $REPO_HOME variable to denote the repo install directory.
* Download the Repo and add execution permitions:
<pre>
cd $REPO_HOME
curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ${REPO_HOME}/repo
chmod a+x ${REPO_HOME}/repo
</pre>
* Add {{filename|$REPO_HOME}} to the path:
<pre>
PATH=${REPO_HOME}:$PATH
</pre>

== Getting Rowboat Android Sources ==
The Rowboat Android source repository is hosted on the [http://gitorious.org/rowboat Rowboat Gitorious] website.
* Create an empty directory for the Rowboat Android sources:
<pre>
mkdir -p /path/to/rowboat/android
export ANDROID_BASE=/path/to/rowboat/android
cd $ANDROID_BASE
</pre>
* Get the sources:
<pre>
repo init -u git://gitorious.org/rowboat/manifest.git -m TI-Android-JB-4.1.2-DevKit-4.0.1.xml
repo sync
</pre>

== Applying Patches ==
The Rowboat Android source tree is a collection of individual git repositories rather than a single git tree.
The [http://compulab.co.il/products/computer-on-modules/cm-t335/#devres CM-T335 Android Demo package] provides a collection of patches for CM-T335 support.
The patch collection is organized into sub-collections;
each sub-collection relates to an individual git repository. All sub-collections form a tree structure that preserves the Rowboat Android Source tree structure.
All patches are generated vs. source tree version determined by the Rowboat Android manifest named [http://gitorious.org/rowboat/manifest/source/TI-Android-JB-4.1.2-DevKit-4.0.1.xml TI-Android-JB-4.1.2-DevKit-4.0.1.xml].

* Patching the {{filename|build/}} directory:
<pre>
cd $ANDROID_BASE/build
git checkout -b cm-t335-dev
git am /path/to/cm-t335-android/development/build/*
</pre>
* Patching the {{filename|device/}} directory:
<pre>
cd $ANDROID_BASE/device/
mkdir -p compulab/cm_t335
cd compulab/cm_t335
git init
git checkout -b cm-t335-dev
git am /path/to/cm-t335-android/development/device/compulab/cm_t335/*
</pre>
* Patching the {{filename|hardware/ti/omap3}} directory:
<pre>
cd $ANDROID_BASE/hardware/ti/omap3
git checkout -b cm-t335-dev
git am /path/to/cm-t335-android/development/hardware/ti/omap3/*
</pre>
* Patching the {{filename|kernel}} directory:
<pre>
cd $ANDROID_BASE/kernel
git checkout -b cm-t335-dev
git am /path/to/cm-t335-android/development/kernel/*
</pre>

== Building Android images ==
* Setup Build Environment
<pre>
export ANDROID_BASE=/path/to/rowboat/adnroid
cd $ANDROID_BASE
export PATH=$JDK_HOME/bin:$PATH
export PATH=$ANDROID_BASE/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin:$PATH
export ARCH=arm
export CROSS_COMPILE=arm-eabi-
export TARGET_PRODUCT=cm_t335
</pre>
* Replace the Makefile in the Android home directory with the patched version:
<pre>
rm -rf ${ANDROID_BASE)/Makefile
cp ${ANDROID_BASE)/build/core/root.mk ${ANDROID_BASE)/Makefile
</pre>
* To build the full Android Demo image (including Android filesystem, SGX, and Linux kernel):<pre>make OMAPES=4.x -j<N></pre>
:where N should be twice the number of processors/cores on your host machine.<br/>
* To build a single Android Demo image component:
** The Android filesystem:<pre>make droid -j<N></pre>
** The SGX:<pre>make sgx OMAPES=4.x -j<N></pre>
** The Linux kernel:<pre>make kernel_build -j<N></pre>
* To create Android filesystem tarball:<pre>make fs_tarball</pre>

= See also =
* [[CM-T335: Android]]
* [[CM-T335: Android: Getting started]]
* [[CM-T335: Android: Kernel]]
* [[Android: ADB setup]]
* [http://source.android.com Android Open Source Project]
* [http://www.ti.com/tool/ANDROIDSDK-SITARA Android Development Kit for Sitara Microprocessors]
* [http://gitorious.org/rowboat Rowboat Gitorious repository]
* [http://processors.wiki.ti.com/index.php/TI-Android-JB-4.1.2-DevKit-4.0.1_DeveloperGuide TI Android Developer Guide]

[[Category:Android]]
[[Category:CM-T3730]]

@@ Line 50: / Line 50: @@
 repo sync
 </pre>
 == Applying Patches ==
@@ Line 91: / Line 103: @@
 git am /path/to/cm-t335-android/development/kernel/*
 </pre>
 == Building Android images ==

@@ Line 1: / Line 1: @@
 = Android Image =
-The Android Demo filesystem image for CM-T335 is based on [http://software-dl.ti.com/dsps/dsps_public_sw/sdo_tii/TI_Android_DevKit/TI_Android_JB_4_1_2_DevKit_4_0_1/index_FDS.html  Android Jelly Bean 4.1.2] distribution for TI's Sitara(TM) AM335x ARM Cortex(TM) A8 Processors.
+The Android Demo filesystem image for the CompuLab CM-T335 System-on-Module / Computer-on-Module is based on [http://software-dl.ti.com/dsps/dsps_public_sw/sdo_tii/TI_Android_DevKit/TI_Android_JB_4_1_2_DevKit_4_0_1/index_FDS.html  Android Jelly Bean 4.1.2] distribution for TI's Sitara(TM) AM335x ARM Cortex(TM) A8 Processors.
 == Host Setup ==

@@ Line 29: / Line 29: @@
 <pre>
 cd $REPO_HOME
-curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ${REPO_HOME}/repo
+curl https://storage.googleapis.com/git-repo-downloads/repo > ${REPO_HOME}/repo
 chmod a+x ${REPO_HOME}/repo
 </pre>

@@ Line 78: / Line 78: @@
 git checkout -b cm-t335-dev
 git am /path/to/cm-t335-android/development/hardware/ti/omap3/*
 </pre>
 * Patching the {{filename|kernel}} directory: