ARM交叉编译工具链的建立

Pre-work:

Tool packages which are needed:

crosstool-0.43.tar.gz http://kegel.com/crosstool/crosstool-0.43.tar.gz

linux-2.6.15.4.tar.bz2 ftp://ftp.kernel.org

binutils-2.16.1.tar.bz2  ftp://ftp.gnu.org

gcc-4.0.2.tar.bz2 ftp://ftp.gnu.org

glibc-2.3.5.tar.bz2 ftp://ftp.gnu.org

glibc-linuxthreads-2.3.5.tar.bz2 ftp://ftp.gnu.org

linux-libc-headers-2.6.12.0.tar.bz2 ftp://ftp.gnu.org

1. Create Tool Source Directory

# cd /usr/src

# mkdir crosstool

2. Export Environment Variables

# vi /etc/profile

Add three lines at the bottom of /etc/profile

#Crosstool Chain Variables

PRJROOT=/usr/src/crosstool

export PRJROOT

# source /etc/profile

3. Unzip crosstool-0.43

# cd $PRJROOT

# tar xvfz crosstool-0.43.tar.gz

# cd crosstool-0.43

# cp demo-arm9tdmi.sh arm9.sh

# vi arm9.sh

set -ex

TARBALLS_DIR=$PRJROOT #The directory where you have downloaded tool packages

RESULT_TOP=/opt/arm #The directory where store the compiled files

export TARBALLS_DIR RESULT_TOP

GCC_LANGUAGES="c,c++"

export GCC_LANGUAGES

mkdir -p $RESULT_TOP

eval `cat arm9tdmi.dat gcc-4.0.2-glibc-2.3.5-tls.dat` sh all.sh --notest # --nounpack

echo Done.

If the source packages have been unpacked in the $PRJROOT/crosstool-0.43/build/arm-linux-/gcc-4.0.2-glibc-2.3.5,

the annotation above "# --nounpack" can be edited to "--nounpack" to save unpacking time.

#vi arm9tdmi.dat

KERNELCONFIG=`pwd`/arm.config # configure kernel

TARGET=arm-9tdmi-linux-gnu # the name of compile tool chain

GCC_EXTRA_CONFIG="--with-cpu=arm9tdmi --enable-cxx-flags=-mcpu=arm9tdmi"

TARGET_CFLAGS="-O" # compile level

#vi gcc-4.0.2-glibc-2.3.5-tls.dat

BINUTILS_DIR=binutils-2.16.1

GCC_DIR=gcc-4.0.2

GLIBC_DIR=glibc-2.3.5

LINUX_DIR=linux-2.6.15.4

LINUX_SANITIZED_HEADER_DIR=linux-libc-headers-2.6.12.0

GLIBCTHREADS_FILENAME=glibc-linuxthreads-2.3.5

GLIBC_EXTRA_CONFIG="$GLIBC_EXTRA_CONFIG --with-tls --with-__thread  --enable-kernel=2.4.18"

Note: download correct edition binutils, gcc, glibc, glibc-linuxthreads, linux, linux-libc-headers source tar, bz2 is perferred format.

The download directory is $PRJROOT.

Now input command in the directory $PRJROOT/crosstool-0.43

#cd $PRJROOT/crosstool-0.43

$./arm9.sh

If the following error message appears,

"...

+ abort 'Don'\''t run all.sh or crosstool.sh as root, it'\''s dangerous'

+ echo 'Don'\''t' run all.sh or crosstool.sh as root, 'it'\''s' dangerous

Don't run all.sh or crosstool.sh as root, it's dangerous

+ exec false"

You should exit root user account, use common user to execute the ./arm9.sh

Now you can have a cup of tea to wait for your arm compile tool chain.

Where you get the following message, congratulation! Today's work is successfully finished.

testhello: C compiler can in fact build a trivial program.

+ test '' = 1

+ test 1 = ''

+ echo Done.

Done."