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setupenv.rst

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Setup Environment

System requirement

Host PC

SD Card reader: SDHC compliant

Operation System: Ubuntu 10.04 x64 version

Target board

VAB-600 platform (with 4G EMMC)

SD Card: 4GB SDHC (at least). VAB-600 now supports up to class 6 SDHC.

Setup cross-compiling environment

In the following command examples # denotes the system shell prompt, do not include that in the commands given.

Get root permission

If you are not login as a root, use su command to get the root permission.

Setup the Tool Chain

Please reference 4.2.1 to connect to network. Then perform the packages update:

apt-get update

Install the build essential packages:

apt-get install git-core gnupg flex bison gperf build-essential \
        zip curl zlib1g-dev libc6-dev lib32ncurses5-dev ia32-libs \
        x11proto-core-dev libx11-dev lib32readline5-dev lib32z-dev \
        libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown \
        libxml2-utils xsltproc

Install the uboot mkimage tool:

apt-get install uboot-mkimage

Confirm if the GNU C library version is 2.11 or newer:

# ldd -version
ldd (Ubuntu EGLIBC 2.1.11-0ubuntu7.11) 2.11.1
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.

Unzip the Tool Chain to /usr/local/arm/ (If your system doesn’t exist this folder previously, you must create manually with mkdir /usr/local/arm):

tar -zxvf arm_201103_gcc4.5.2.tgz -C /usr/local/arm/

As :num:`Figure #figure-toolchain` shows, the cross compiler is located at /usr/local/arm/arm_201103_gcc4.5.2/.

The Toolchain for VAB-600

The Toolchain for VAB-600

Export the Tool Chain to system PATH:

export PATH=/usr/local/arm/arm_201103_gcc4.5.2/mybin/:$PATH

Next, alias the Tool Chain for best floats calculation:

alias arm_1103_le-as='arm_1103_le-as -mcpu=cortex-a9 -mfpu=neon -mfloatabi=softfp'
alias arm_1103_le-c++='arm_1103_le-c++ -mcpu=cortex-a9 -mfpu=neon -mfloatabi=softfp'
alias arm_1103_le-cpp='arm_1103_le-cpp -mcpu=cortex-a9 -mfpu=neon -mfloatabi=softfp'
alias arm_1103_le-g++='arm_1103_le-g++ -mcpu=cortex-a9 -mfpu=neon -mfloatabi=softfp'
alias arm_1103_le-gcc='arm_1103_le-gcc -mcpu=cortex-a9 -mfpu=neon -mfloatabi=softfp'
alias arm_1103_le-gcc-4.5.2='arm_1103_le-gcc-4.5.2 -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp'