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This article mainly introduces Ubuntu14.10 how to compile Android5.0 source code, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

The first part is the construction of environment

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1. Install ubuntu

Compiling Android 5.0requires a ubuntu 64-bit operating system. Download the Ubuntu 14.10 64-bit version from http://www.ubuntu.com/download/ubuntu-kylin-zh-CN.

Ps:1. It is recommended that you download 14.10, do not download 14.04, because at the beginning of 14.04, when installing the software needed for compilation, it is very difficult to solve all kinds of dependency problems. If you do not have confidence in linux, do not download 14.04 and install it here.

The disk and hard disk space compiled by 2.Android source code requires high requirements, and the disk space of ubuntu needs to be allocated more than 60G. I installed a dual system, allocated 100G of space, and used about 55G of compilation; at least 2G of memory was allocated, and 4G of Swap space was allocated.

two。 Install openjdk-7-jdk

The jdk used by Android 5.0 is no longer the jdk of Oracle, but the open source openjdk. After ubuntu is installed, use the following command to install jdk:

$sudo apt-get install openjdk-7-jdk

After installation, set the environment variables:

At the end of the / etc/profile file, add:

JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/ PATH=$PATH:$HOME/bin:$JAVA_HOME/bin export JAVA_HOME export PATH3. Install software that is dependent on compilation

Install the dependent software using the following command:

$sudo apt-get install git gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa- dri:i386 libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386 dpkg-dev $sudo ln-s / usr/lib/i386-linux-gnu/mesa/libGL.so.1 / usr/lib/i386-linux-gnu/libGL.so

Ps:14.10 should not have the problem of software dependency in installing dependent software. If it does, just solve it according to the prompts.

The second part compiles

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4. Configure Cache

Use the following command to configure cache:

Sudo apt-get install ccache $source ~ / .bashrc5. Download repo

1) create a repo directory

$mkdir ~ / bin $PATH=~/bin:$PATH

2) download repo (official repo cannot be downloaded, most of the other repo are relatively old, this time is relatively new, I have been looking for a long time

)

$git clone git://aosp.tuna.tsinghua.edu.cn/android/git-repo.git/

After cloning, copy the repo file in git-repo to the bin directory

$cp git-repo/repo ~ / bin/

Modify the repo file and set the REPO_URL as follows:

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REPO_URL = 'git://aosp.tuna.tsinghua.edu.cn/android/git-repo'

6. Initialize repo

1) create a directory

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$mkdir ~ / aosp

2) initialize repo

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$cd ~ / aosp

$repo init-u git://aosp.tuna.tsinghua.edu.cn/android/platform/manifest-b android-5.0.2_r1

Ps: when prompted for email verification during initialization, use the following command:

Git config-global user.email "you@example.com"

Git config-global user.name "Your Name"

7. Download the source code

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$repo sync

Ps: this is the download of the source code. It takes a long time. It takes more than 4 hours for me to download 1m broadband.

8. Source code compilation

Ps: compared with the compilation process, my computer is dual-core, using single-thread compilation, the time bit is about 12 hours, if multi-thread is used, the time should be doubled.

1) set cache

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$cd aosp

$prebuilts/misc/linux-x86/ccache/ccache-M 50G

2) initialize the compilation environment

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$. Build/envsetup.sh

3) Select the compilation target package

There are many ways to ps:lunch, which can be viewed using the lunch command, and I use the most commonly used

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$lunch aosp_arm-eng

4) compilation

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$make

Ps:1.make can be followed by more parameters: if your machine is dual-core, dual-threaded per core, use make-J4, which is faster, but uses more memory at compile time

After 2.make fails or stops, you can use make-k to continue compiling

9. The results show:

$emulator &

Start the simulator, effect picture:

Thank you for reading this article carefully. I hope the article "how to compile Android5.0 source code with Ubuntu14.10" shared by the editor will be helpful to everyone. At the same time, I also hope you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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