How to build eCos 2.x applications for ARM platform

In Fedora Core 8, Fedora Core 9

Install toolchain for eCos
[ ]# /opt/gnutools/

Build eCos complete process

1. select template
2. adding package
3. editing configuration
4. build tree
5. build library
6. build application 

Compile ecosconfig
[ ]# cd /home/eCos/ecos-starsemi    ; ECOS_ROOT_DIR = /home/eCos/ecos-starsemi
[ ]# mkdir -p ecos-host
[ ]# cd ecos-host

[ ]# CC=gcc CXX=g++ ../ecos-2.0/configure --with-tcl=/usr/bin/tclsh --prefix=/usr/lib --host=i686-linux-gnu --with-tcl-version=8.5
[ ]# make CFLAGS="-march=i686" CXXFLAGS="-march=i686"


Compile eCos
[ ]# source ecosenv.sh    ; set some environment variables for eCos
[ ]# ecosconfig list    ; support list

[ ]# cd $ECOS_ROOT_DIR
[ ]# mkdir ecos-build
[ ]# cd ecos-build

[ ]# ecosconfig new str81xx
[ ]# ecosconfig resolve
[ ]# ecosconfig check
[ ]# ecosconfig tree
[ ]# make

Compile eCos Application - Hello World
[ ]# cd $ECOS_ROOT_DIR    ; ECOS_ROOT_DIR = /home/eCos/ecos-starsemi
[ ]# mkdir hello_kernel
[ ]# cd hello_kernel

[ ]# ecosconfig new str81xx
[ ]# ecosconfig tree    ;ecos.ecc
[ ]# make    ; install/lib/target.ld

[ ]# cd $ECOS_ROOT_DIR    ; ECOS_ROOT_DIR = /home/eCos/ecos-starsemi
[ ]# mkdir hello_application
[ ]# cd hello_application
[ ]# cp /home/eCos/ecos-starsemi/ecos-2.0/examples/hello.c .
[ ]# cp /home/eCos/ecos-starsemi/ecos-2.0/examples/build_Makefile .
[ ]# cp /home/eCos/ecos-starsemi/ecos-2.0/examples/build_Make.params .
[ ]# chmod +x build_Makefile build_Make.params
[ ]# SRCS=hello.c DST=hello ./build_Makefile ../hello_kernel
[ ]# make
[ ]# arm-elf-objcopy -O srec hello hello.srec
[ ]# arm-elf-objcopy -O binary hello hello.bin


Compile eCos Application - HTTP Server
[ ]# cd $ECOS_ROOT_DIR    ; ECOS_ROOT_DIR = /home/eCos/ecos-starsemi
[ ]# mkdir httpd_kernel
[ ]# cd httpd_kernel

[ ]# ecosconfig new str81xx net
[ ]# ecosconfig add CYGPKG_HTTPD    ; add HTTP server
[ ]# ecosconfig tree    ; ecos.ecc
[ ]# make    ; install/lib/target.ld

[ ]# cd $ECOS_ROOT_DIR    ; ECOS_ROOT_DIR = /home/eCos/ecos-starsemi
[ ]# mkdir httpd_application
[ ]# cd httpd_application
[ ]# cp /home/eCos/ecos-starsemi/ecos-2.0/packages/net/httpd/current/tests/httpd1.c httpd_apps.c
[ ]# cp /home/eCos/ecos-starsemi/ecos-2.0/examples/build_Makefile .
[ ]# cp /home/eCos/ecos-starsemi/ecos-2.0/examples/build_Make.params .
[ ]# chmod +x build_Makefile build_Make.params
[ ]# SRCS=httpd_apps.c DST=httpd_apps ./build_Makefile ../httpd_kernel
[ ]# make
[ ]# arm-elf-objcopy -O srec httpd_apps httpd_apps.srec
[ ]# arm-elf-objcopy -O binary httpd_apps httpd_apps.bin

-----------------------------------------------------------
-rwxr-xr-x 1 root root 2085682 2008-06-17 httpd_apps
-rwxr-xr-x 1 root root  742694 2008-06-17 httpd_apps.srec
-rwxr-xr-x 1 root root  258304 2008-06-17 httpd_apps.bin
-----------------------------------------------------------

The size of the image is pretty small.

Compile eCos Application - OpenSSL Server
[ ]# ecosconfig add CYGPKG_OPENSSL    ; add openssl support

Compile eCos Application - BitTorrent Server
To be continue...

Compile eCos Application - Samba Server
To be continue...

Current Status:

• Hello World ! [Console]
• HTTP Server [Ethernet, TCP/IP]
• OpenSSL Server [Ethernet, TCP/IP]
• BitTorrent Client [ToDo] 
• Sambe Server [ToDo]

eCos Notes

Some notes about eCos.

Compare with Linux.

eCos Software Diagram

Compare with Linux

How to build eCos 2.x toolchain for ARM platform

In Fedora Core 8, Fedora Core 9

* binutils-2.15
* gcc-3.4.3
* newlib-1.12.0
* insight-6.6

1. Pre-Configuration
BASE_DIR=`pwd`
TARGET=arm-elf

2. Download source code
[ ]# wget -P $BASE_DIR/src http://www.gnuarm.com/binutils-2.15.tar.bz2
[ ]# wget -P $BASE_DIR/src http://www.gnuarm.com/gcc-3.4.3.tar.bz2
[ ]# wget -P $BASE_DIR/src http://www.gnuarm.com/newlib-1.12.0.tar.gz
[ ]# wget -P $BASE_DIR/src ftp://sourceware.org/pub/insight/releases/insight-6.6.tar.bz2

3. Pre-Build
[ ]# mkdir -p /opt/gnutools
[ ]# bunzip2 < $BASE_DIR/src/binutils-2.15.tar.bz2 | tar xvf -
[ ]# bunzip2 < $BASE_DIR/src/gcc-3.4.3.tar.bz2 | tar xvf -
[ ]# gunzip < $BASE_DIR/src/newlib-1.12.0.tar.gz | tar xvf -
[ ]# bunzip2 < $BASE_DIR/src/insight-6.6.tar.bz2 | tar xvf -
[ ]# cp -rf newlib-1.12.0/newlib gcc-3.4.3/
[ ]# cp -rf newlib-1.12.0/libgloss gcc-3.4.3/

4. Binutils
[ ]# mkdir -p /tmp/build/binutils
[ ]# cd /tmp/build/binutils
[ ]# $BASE_DIR/binutils-2.15/configure --target=$TARGET --prefix=/opt/gnutools \
-v 2>&1 | tee configure.out
[ ]# make -w all install 2>&1 | tee make.out

5. GCC
[ ]# PATH=/opt/gnutools/bin:$PATH ; export PATH
[ ]# mkdir -p /tmp/build/gcc
[ ]# cd /tmp/build/gcc
[ ]# $BASE_DIR/gcc-3.4.3/configure --target=$TARGET --prefix=/opt/gnutools \
--enable-languages=c,c++ --with-gnu-as --with-gnu-ld --with-newlib \
--with-gxx-include-dir=/opt/gnutools/$TARGET/include \
-v 2>&1 | tee configure.out
[ ]# make -w all install 2>&1 | tee make.out

6. GDB
[ ]# mkdir -p /tmp/build/gdb
[ ]# cd /tmp/build/gdb
[ ]# $BASE_DIR/insight-6.6/configure --target=$TARGET --prefix=/opt/gnutools \
-v 2>&1 | tee configure.out
[ ]# make -w all install 2>&1 | tee make.out

7. Post-Build
* Clean
[ ]# rm -rf /tmp/build/

* Change PATH environment variable (Edit /root/.bash_profile file)
PATH=$PATH:$HOME/bin
# Toolchain for ARM-eCos platform
PATH=/opt/gnutools/bin:$PATH
export PATH

* Effect the change

That's all. Here is the script file. Enjoy!
You can also download the complete source tarball (84MB).

eCos

eCos
Changelog
1998.11 - eCos 1.1, Cygnus Solutions
1999.05 - eCos 1.2
1999.11 - Cygnus Solutions was acquired by Red Hat
2000.03 - eCos 1.3, Red Hat
2003.05 - eCos 2.0, eCosCentric Original members of eCos team formed eCosCentric Limited in Cambridge.

2004 - I first met eCos
2008 - I second met eCos. Next assigned task is porting the eCos to a new ARM9 processor.

eCos books

1. Embedded Software Development with eCos

Download PDF
Download Source Code
2. Programming Embedded Systems: With C and GNU Development Tools, 2nd Edition

How to build eCos 2.x for ARM platform