1. Computer System Laboratory
Lab1 Cross Compiler, Assembler & Linker

2. Experimental Goal Build an development environment for embedded system
Cross compiler, assembler, linker
Cross C standard library
C program
compiler
Assembly language program
assembler
Transforms the C program into an assembly language program
Object: Machine language module
Object: Library routine (machine language)
linker
Executable: Machine language program
Lab1
2019/4/11

3. Environment Host System Build System Software
Windows XP
Build System
Ubuntu 8.04
Software
GNU Binutils source code
GNU Compiler Collection source code
Red Hat Newlib source code
makeinfo_version.patch
Ubuntu 8.04 PC desktop CD & Test code
You can download all the source codes from
RSWiki CSL Course Software
Lab1
2019/4/11

4. Create Build System Install VirtualBox Install Guest Additions
At least 20 GB disk space
Install Guest Additions
Click Devices  Install Guest Additions
% sudo /media/cdrom/VBoxLinuxAdditions.run
Create Shared Folders
Click Devices  Shared Folders
Select Folder Path & Name, mark it to be auto-mounted
% mkdir /mnt/<your path>
% sudo mount.vboxsf Folder Name /mnt/<your path>
Lab1
2019/4/11

5. GNU Cross-Binutils Compilation
Prerequisite
% sudo apt-get install libc6-dev texinfo vim patch
Step1 : download source code
% ftp sources.redhat.com (Name:ftp Password:-)
ftp> cd pub/binutils/releases
ftp> bi
ftp> get binutils tar.gz
Step2 : extract source code
% tar –zxvf binutils tar.gz
Step3 : set compilation options
% cd binutils
% ./configure --target=arm-elf \
--prefix=$HOME/<your path>
Step4 : compile cross-binutils
% make –j4
Lab1
2019/4/11

6. GNU Cross-Binutils Compilation (Cont.)
Step5 : install cross-binutils
% make –j4 install
Step6 : append installation directory to PATH
% sudo vim /etc/environment
% source /etc/environment
Test
% arm-elf-as –version
Tip
If you open another terminal, you need to source again
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:$HOME/<your path>/bin"
Lab1
2019/4/11

7. GNU Cross-Compiler Compilation
Step1 : download source code
% ftp sources.redhat.com
ftp> cd pub/gcc/releases/gcc-3.3.6
ftp> bi
ftp> get gcc tar.gz
Step2 : extract source code
% tar –zxvf gcc tar.gz
Step3 : set compilation options
% cd gcc-3.3.6
% ./configure --target=arm-elf \
--prefix=$HOME/<the your path previously> \
--enable-languages=c --with-newlib
Step4 : compile cross-compiler
% make –j4
Lab1
2019/4/11

8. GNU Cross-Compiler Compilation (Cont.)
Step5 : install cross-compiler
% make –j4 install
Test
% arm-elf-gcc -v
Lab1
2019/4/11

9. GNU Cross-Newlib Compilation
Step1 : download source code
% ftp sources.redhat.com
ftp> cd pub/newlib
ftp> bi
ftp> get newlib tar.gz
Step2 : extract source code
% tar –zxvf newlib tar.gz
Step3 : apply the patch
% cd newlib
% patch < makeinfo_version.patch
Step4 : set compilation options
% ./configure --target=arm-elf \
--prefix=$HOME/<the your path previously>
Step5 : compile cross-newlib
% make –j4
Lab1
2019/4/11

10. GNU Cross-Newlib Compilation (Cont.)
Step6 : install cross-newlib
% make –j4 install
Test
Check assembly code generation
% arm-elf-gcc –S test1.c
% vim test1.s
Check executable
% arm-elf-gcc test1.c –o test1
% file test1
This executable can run on ARM target board
Lab1
2019/4/11