Native compile Linux kernel on i.MX6ULL platform

[weidongzhou]

Normally Linux kernel is built on various x86 architecture platform which we call it "cross-compiling" or "cross-development". In this test we will take a NXP i.MX6ULL 900MHz platform as build machine to make a native compiling of Linux kernel. And this make possible to compare the performance with the main stream x86 desktop.

Environment

Platform Name	Innostick 6
CPU	i.MX6ULL 900MHz
RAM	512MB DDR3L
eMMC	16GB
Network	WiFi

====Pre-requirements====

• An Innostick 6 pre-loaded with Debian Stretch
• NXP U-Boot: https://source.codeaurora.org/external/imx/uboot-imx
• NXP i.MX6 Kernel: https://source.codeaurora.org/external/imx/linux-imx
• Innostick6 Kernel: https://github.com/NXElec/linux-innostick6

====CPU Info.====

debian@arm:/opt/innostick6$ lscpu

Architecture: armv7l

Byte Order: Little Endian

CPU(s): 1

On-line CPU(s) list: 0

Thread(s) per core: 1

Core(s) per socket: 1

Socket(s): 1

Model: 5

Model name: ARMv7 Processor rev 5 (v7l)

CPU max MHz: 900.0000

CPU min MHz: 198.0000

BogoMIPS: 13.63

Flags: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae

====Debian Version====

debian@arm:/opt/innostick6$ cat /etc/os-release

PRETTY_NAME="Debian GNU/Linux 9 (stretch)"

NAME="Debian GNU/Linux"

VERSION_ID="9"

VERSION="9 (stretch)"

ID=debian

HOME_URL="https://www.debian.org/"

SUPPORT_URL="https://www.debian.org/support"

BUG_REPORT_URL="https://bugs.debian.org/

====Install build-essential====

sudo apt-get install build-essential libncurses5-dev lzop

====Disk Info.====

debian@arm:/opt/innostick6$ df -h

Filesystem Size Used Avail Use% Mounted on

/dev/root 14G 2.5G 11G 20% /

devtmpfs 86M 0 86M 0% /dev

tmpfs 247M 0 247M 0% /dev/shm

tmpfs 247M 10M 237M 5% /run

tmpfs 5.0M 0 5.0M 0% /run/lock

tmpfs 247M 0 247M 0% /sys/fs/cgroup

tmpfs 50M 4.0K 50M 1% /run/user/112

tmpfs 50M 0 50M 0% /run/user/1000

====Build U-Boot====

Get source code：

git clone https://source.codeaurora.org/external/imx/uboot-imx -b imx_v2017.03_4.9.88_2.0.0_ga

Start to Compile:

cd uboot-imx

make clean

make mx6ull_14x14_evk_defconfig

make

====Build Kernel====

Get source code：

git clone https://source.codeaurora.org/external/imx/linux-imx -b imx_4.9.88_2.0.0_ga

Start to compile

cd linux-imx

make imx_v7_defconfig

make

====Check Disk Info. Again====

debian@arm:/opt/innostick6/linux-imx$ df -h

Filesystem Size Used Avail Use% Mounted on

/dev/root 14G 3.4G 9.6G 26% /

devtmpfs 86M 0 86M 0% /dev

tmpfs 247M 0 247M 0% /dev/shm

tmpfs 247M 6.9M 240M 3% /run

tmpfs 5.0M 0 5.0M 0% /run/lock

tmpfs 247M 0 247M 0% /sys/fs/cgroup

tmpfs 50M 4.0K 50M 1% /run/user/112

tmpfs 50M 0 50M 0% /run/user/1000

====Time Consumption====

Approximately 210 minutes