Ubuntu Install Cross tool chain

First, download the toolchain and unzip it to the root directory.

(1) Copy the downloaded toolchain (I use toolchains_for_s3c2410.tar.bz2) to the/home directory via Samba

Decompression toolchains_for_s3c2410.tar.bz2:

TAR–JXVF toolchains_for_s3c2410.tar.bz2

The Crosstool directory is generated and is typically copied to the root directory.

caoyi@ubuntu:/home$ ls
Caoyi Crosstool Kernel Study toolchains_for_s3c2410.tar.bz2

caoyi@ubuntu:/home$ sudo mv crosstool//

(2), get the absolute path of the crossover tool

CD crosstool/gcc-3.4.5-glibc-2.3.6/arm-linux-gnu/bin/

PWD command gets the absolute path where the cross-tool chain executable file is stored

/crosstool/gcc-3.4.5-glibc-2.3.6/arm-linux-gnu/bin

(3), modify the value of the environment variable path

caoyi@ubuntu:/home$ CD ~ (current user directory, my:/home/caoyi)

caoyi@ubuntu:/home$ vim. BASHRC

In the last line, add:

Export path= $PATH:/crosstool/gcc-3.4.5-glibc-2.3.6/arm-linux-gnu/bin

Save exit

or modify/etc/profile

Execute command: Vim/etc/profile

Add to:

Export path= $PATH:/opt/crosstool/gcc-3.4.5-glibc-2.3.6/arm-linux-gnu/bin

Save exit

Last executed: Source/etc/profile

Ok

Execute command: Source ~/.BASHRC

Second, compile C code using the Cross tool chain

(1), create a new folder in/opt/filesystem, specifically to store the cross-compiled executable code

caoyi@ubuntu:/home$ Cd/rootfs/filesystem

caoyi@ubuntu:/rootfs/filesystem/$ sudo mkdir work

caoyi@ubuntu:/rootfs/filesystem/$ sudo chmod 777-r work (note to change the properties, otherwise the compiler will have permission issues)

caoyi@ubuntu:/home$ cd/rootfs/filesystem/work/
caoyi@ubuntu:/rootfs/filesystem/work$ sudo vim hello.c

caoyi@ubuntu:/rootfs/filesystem/work$ sudo arm-linux-gnu-gcc hello.c–o Hello

caoyi@ubuntu:/rootfs/filesystem/work$ ls
Hello hello.c
(2), in the terminal of the Development Board, namely Putty (serial port), enter the/work/directory to run Hello

# CD Work
# ls
Hello hello.c
#./hello
Hello world!
#