Construction of A80 compilation environment under ubuntu12.04 platform

If the unable to locate package appears, use sudo apt-get update

installation JDK6

Start installing the JDK below:

Some of the information on the Internet is to install the JDK under the/USR/LIB/JVM/JDK, but also installed under the/opt, I am here to introduce it is installed under the/OPT,

Terminal under entry you store Jdk-6u45-linux-x64.bin

$sudo chmod 777 Jdk-6u45-linux-x64.bin

$ sudo-s./jdk-6u45-linux-x64.bin/opt

Go all the way to the car until you ask if it's installed, enter Yes to go (directly knocking a capital a plus cart better,)

[If this command completes, the installation directory is not under/OPT, but under your own account directory, please move the entire folder to/OPT and give the appropriate permissions]

$ sudo mv jdk1.6.0_45/opt

OK, installation complete, the following configuration environment variables

Configure CLASSPATH, modify environment variables for all users

$ Gksudo Gedit/etc/profile

Added at the end of the file

#set Java Environment

Java_home=/opt/jdk1.6.0_45

Export JRE_HOME=/OPT/JDK1.6.0_45/JRE

Export classpath=.: $JAVA _home/lib: $JRE _home/lib: $CLASSPATH

Export path= $JAVA _home/bin: $JRE _home/bin: $PATH

Refresh/etc/profile

$source/etc/profile

View Java version

$java –version

Show:

[Email protected]:~$ java-version

Java Version "1.6.0_45"

Java (TM) SE Runtime Environment (build 1.6.0_45-b06)

Java HotSpot (TM) 64-bit Server VM (build 20.45-b01, Mixed mode)

To install the compilation library: ( preferably one-to-one installation, or several installations, do not install all at once , to prevent some libraries from invalidating )

sudo apt-get install Git-core GnuPG Flex Bison gperf build-essential\

Zip curl Zlib1g-dev Libc6-dev lib32ncurses5-dev \

X11proto-core-dev Libx11-dev Lib32z1-dev Libgl1-mesa-dev g++-multilib\

Mingw32 Tofrodos Python-markdown Libxml2-utils

Final installation Ia32-libs

New version of Ubuntu cannot be updated by Ia32-libs, replaced by Lib32z1 lib32ncurses5 lib32bz2-1.0

Because ubuntu64-32 compatibility is not very good, you are missing a 32-bit runtime

Install the required 32-bit library yourself

$ sudo apt-get install libc6:i386 libgcc1:i386 gcc-4.6-base:i386 libstdc++5:i386 libstdc++6:i386

However, the following error was encountered during the installation process:

Errors were encountered while processing:

Libc6-dev:i386

E:sub-process/usr/bin/dpkg returned an error code (1)

Here's how to fix it:

$ sudo apt-get install linux-libc-dev:i386

$ sudo apt-get install libc6-dev:i386

At this point, even if the build environment is complete, at least on my computer, so we can start to download the Android code to compile.

Final installation Ia32-libs

$ sudo apt-get install Ia32-libs

Ubuntu 14.04 x64 Configuring the Android 4.4 KitKat compilation environment is not much different from Ubuntu 12.04-13.10 and Jellybean Build environment configuration

Modify GCC and the g++ version

Change the default version of GCC to 4.4.

Installing gcc4.4 and g++4.4

sudo apt-get install gcc-4.4

sudo apt-get isntall g++-4.4

Modify the default GCC and g++ versions of 4.4

sudo update-alternatives--remove-all gcc

sudo update-alternatives--INSTALL/USR/BIN/GCC gcc/usr/bin/gcc-4.4 40

sudo update-alternatives--install/usr/bin/g++ g++/usr/bin/g++-4.4 40

Configuring the default GCC and g++

sudo update-alternatives--config gcc

sudo update-alternatives--config g++

With command: ls/usr/bin/gcc*-L

Display, GCC version, change version,

#sudo apt-get Install gcc-4.4 g++-4.4

Remove version 4.7 Soft connect: sudo rm/usr/bin/gcc

sudo rm/usr/bin/gcc

New 4.4 version Connection: sudo ln–s/usr/bin/gcc-4.4/usr/bin/gcc

sudo ln–s/usr/bin/g++-4.4/usr/bin/gcc

Execute find lichee/linux-3.4/modules/-type l under A80_optimus before compiling the kernel | Xargs RM-FV

The compilation appears:

"Mkimage" command not found-u-boot images won't be built

Workaround:

If you are using Ubuntu 9.10 and later, you can install mkimage using the following command:

#apt-get Install Uboot-mkimage

If you have already installed the JDK , or a hint JDK Errors ,

Workaround

Make sure your JDK is under/USR/LIB/JVM

sudo update-alternatives--install/usr/bin/java Java/usr/lib/jvm/jdk1.6.0_45/bin/java 300

sudo update-alternatives--install/usr/bin/javac Javac/usr/lib/jvm/jdk1.6.0_45/bin/javac 300

sudo update-alternatives--install/usr/bin/javah javah/usr/lib/jvm/jdk1.6.0_45/bin/javah 300

sudo update-alternatives--install/usr/bin/javap JAVAP/USR/LIB/JVM/JDK1.6.0_45/BIN/JAVAP 300

sudo update-alternatives--install/usr/bin/javaws javaws/usr/lib/jvm/jdk1.6.0_45/bin/javaws 300

sudo update-alternatives--install/usr/bin/javadoc javadoc/usr/lib/jvm/jdk1.6.0_45/bin/javadoc 300

sudo update-alternatives--install/usr/bin/jar Jar/usr/lib/jvm/jdk1.6.0_45/bin/jar 300

Recompile the kernel

installation Samba shared,

#sudo Apt-get Install System-config-samba

#运行samba图形界面

#sudo System-config-samba

Select the folder you want to share, with the permissions set to everyone readable and writable

#映射电脑硬盘,

View Virtual Machine IP

#ifconfig

Desktop on my Computer, right-click on the map to disk,

Enter the IP address to complete the samba share

CCache Ubuntu Configuration

Setup method (Ubuntu):

① installation CCache

Download or apt install sudo apt-get install CCache

②$ which CCache

View the installation path,/usr/bin/ccache

③$ mkdir ~/.bin

④$ CD ~/.bin/

$ ln-s/usr/bin/ccache gcc

$ ln-s/usr/bin/ccache g++

$ ln-s/usr/bin/ccache ARM-LINUX-GCC

$ ln-s/usr/bin/ccache arm-linux-g++

⑤path settings, put ~/.bin/in front of the original path.

Gedit ~/.BASHRC Add export path= "/home/<user>/.bin:/usr/bin", then reboot

⑥ Test Commands

Which g++

which GCC

⑦$ ccache-m 2G

Hard disk space is not enough to mount a new hard drive

Mount/dev/sdb1/home/danquan/a80-t EXT4

Android after compiling the source code, re-compile if you need to do cleanup work

1, in the source directory of the root directory, make clean;

2, into the source code \linux\kernel\ directory, the implementation of make mrproper;

3, return to the root directory, follow the instructions in order to execute the source Build/envsetup.sh,lunch, select products, extrat-bsp,make–j8 and other operations.

Note: Output logs from the compilation process to the specified file, and the last step makes the instructions

Make–j8 2>build_log.txt (Output the error log in the compilation process to the Build_log.txt file)

Make–j8 1>build_log.txt (output the correct log generated during compilation to Build_log.txt)

Make-j8 >build_log.txt 2>&1 (output all logs generated during compilation to Build_log.txt)

Construction of A80 compilation environment under ubuntu12.04 platform