LINUX kernel and application porting

1. Add user work

[Root @ localhost ~] #useradd -G root -g root -d / home / arm arm 2. establish a working directory

 

[arm@localhost arm]$mkdir dev_home [arm@localhost arm]$cd dev_home

[arm@localhost arm]$mkdir bootldr btools debug doc images kernel localapps \ rootfs sysapps tmp tools

[arm@localhost arm]$tree -L 1

.

|-- bootldr

|-- btools

|-- debug

|-- doc

|-- images

|-- kernel

| - localapps

|-- rootfs

| - sysapps

|-- tmp

`- tools can be seen as a tree structure. Note: tree command

 

3. Set up the environment variable settings script

[Arm @ localhost arm] $ we env_sh

#!/bin/bash PRJROOT=~/dev_home KERNEL=$PRJROOT/kernel ROOTFS=$PRJROOT/rootfs LAPP=$PRJROOT/localapps DOC=$PRJROOT/doc TMP=$PRJROOT/tmp

 

export PRJROOT KERNEL LAPP ROOTFS

export PATH=/usr/local/arm/3.4.4/bin:$PATH

 

4. Start environment variables landing

[arm@localhost arm]$vi ~/.bashrc

. ~/dev_home/env_sh

 

Re-login arm user, environmental variables [arm @ localhost arm] $ su arm