Task #8 - Build kernel manually using created toolchain

After bitbake meta-toolchain the script to install the toolchain package is located under

 

$ ls tmp/deploy/sdk/poky-eglibc-x86_64-arm-toolchain-1.4.1.sh

   tmp/deploy/sdk/poky-eglibc-x86_64-arm-toolchain-1.4.1.sh

In order to install it:

 

$ source poky-eglibc-x86_64-arm-toolchain-1.4.1.sh

    [sudo] password for daiane:

    Enter target directory for SDK (default: /opt/poky/1.4.1):

    You are about to install the SDK to "/opt/poky/1.4.1". Proceed[Y/n]?y

    Extracting SDK...done

    Setting it up...done

    SDK has been successfully set up and is ready to be used.

    

 

Hello World

 

$ source /opt/poky/1.4.1/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi

$ cd ~/test/

$ arm-poky-linux-gnueabi-gcc helloworld.c

$ ls

a.out                                                 helloworld.c                              

$ ./a.out

-bash: ./a.out: cannot execute binary file

$ file a.out

a.out: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, not stripped

 

 

Kernel

 

$ source /opt/poky/1.4.1/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi

$ cd linux-2.6-imx

$ git checkout remotes/origin/imx_3.0.35

$ export ARCH=arm

$ export CROSS_COMPILE=$TARGET_PREFIX

$ unset LDFLAGS

$ make imx6_defconfig

$ make uImage

 

Make sure to have mkimage available on bin patch (if using mkimage from u-boot export its patch)

 

Or, download the ubuntu pachage:

 

sudo apt-get install uboot-mkimage