Android downloads and compiles system source code on ubuntu

Android downloads and compiles system source code on ubuntu

There are also many such tutorials on the Internet. Here we just record them for future viewing.

 

 

Download source code

Perform the following steps:

1. Configure the installation and download Environment

Configure the JDK Environment

Install curl and git-core software

Sudo apt-get install curl
Sudo apt-get install git-core

2. Create ~ /Bin directory and add it to Environment Variables

Mkdir ~ /Bin
PATH = ~ /Bin: $ PATH

 

3. Download the repo script and modify the permission to be executable.

Curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo> ~ /Bin/repo (this may cause download timeout)
Curl http://php.webtutor.pl/en/wp-content/uploads/2011/09/repo> ~ /Bin/repo (this can be downloaded if the download fails)
Chmod a + x ~ /Bin/repo

4. Create a directory for saving the android source code, change it to the maximum permission, and enter the Directory

Mkdir/opt/android_source
Sudo chmod-R 777/opt/android_source
Cd/opt/android_source

5. initialize the repo and select the branch (version) to be downloaded)

Repo init-u https://android.googlesource.com/platform/manifest (this is the latest source code)
Repo init-u https://android.googlesource.com/platform/manifest-B android-4.2_r1 (this is Android4.2 system source code, other versions as long as the change branch number can be)

 

6. You are prompted to enter your name and email address.

7. Download source code

Repo sync

 

 

Common Errors:

Case 1:

Error: Failed onnect o android.googlesource.com: 443;

Connection efused while accessing

Https://android.googlesource.com/a/platform/frameworks/base/info/refs

Fatal: HTTP request failed

Error: Cannot fetch platform/tools/motodev

Error: Cannot fetch platform/frameworks/base

Error: Cannot fetch platform/prebuilts/sdk

Error: Exited sync due to fetch errors

 

Solution:

Edit the/etc/hosts file

Vim/etc/hosts

Add the following content and save it.

74.125.31.82 www.googlesource.com

74.125.31.82 android.googlesource.com

203.208.46.172 cache.pack.google.com

59.24.3.173 cache.pack.google.com

 

Compile source code

1. Download Required Software

Sudo apt-get install git gnupg flex bison gperf build-essential
Zip curl libc6-dev libncurses5-dev: i386 x11proto-core-dev
Libx11-dev: i386 Co., libreadline6-dev: i386 libgl1-mesa-glx: i386
Libgl1-mesa-dev g ++-multilib mingw32 tofrodos
Python-markdown libxml2-utils xsltproc zlib1g-dev: i386

 

2. Create a link

 

Sudo ln-s/usr/lib/i386-linux-gnu/mesa/libGL. so.1/usr/lib/i386-linux-gnu/libGL. so

3. Configure gcc

Sudo apt-get install gcc-4.4
Sudo apt-get install g ++-4.4

4. Compile the source code

Cd/opt/android_source

Source build/envsetup. sh or. build/envsetup. sh

Lunch full-eng

Make-j4

 

5. Start the simulator.

Emulator