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Online documentation:
Using distcc and crosstool-ng for distributed cross-compilations:
- http://archlinuxarm.org/developers/distcc-cross-compiling
Setting up a distcc environment:
- http://archlinuxarm.org/developers/distributed-compiling
# ===========================================================================
Setting up distcc on the host (the ARM computer):
Add the following to /etc/profile.d/distcc.sh :
#-----8<------------------------------------------
# Explicitly set the ARCH since we are not natively compiling:
export ARCH=armv7hl
# Automatically determine the ARCH we are running distcc on:
MARCH=$( uname -m )
if [ -z "$ARCH" ]; then
case "$MARCH" in
i?86) export ARCH=i486 ;;
armv7hl) export ARCH=$MARCH ;;
arm*) export ARCH=arm ;;
# Unless $ARCH is already set, use uname -m for all other archs:
*) export ARCH=$MARCH ;;
esac
fi
case "$ARCH" in
arm*) TARGET=$ARCH-slackware-linux-gnueabi ;;
*) TARGET=$ARCH-slackware-linux ;;
esac
# Define the compilers with their full name, not just "gcc" - or else
# we can not distribute the compilation to a distcc cross-compiler:
export CC=${TARGET}-gcc
export CXX=${TARGET}-g++
export AS=${TARGET}-as
# We need a private directory where we will create distcc symlinks:
DISTCC_CPATH="/var/tmp/${UID}/distcc"
# Create distcc compiler and assembler symlinks, for our host architecture:
( mkdir -p $DISTCC_CPATH
cd $DISTCC_CPATH
ln -svf /usr/bin/distcc ${TARGET}-gcc
ln -svf /usr/bin/distcc ${TARGET}-g++
ln -svf /usr/bin/distcc ${TARGET}-c++
ln -svf /usr/bin/distcc ${TARGET}-as
)
# So that every compiler call will actually trigger distcc:
export PATH="$DISTCC_CPATH:$PATH"
# First priority is the localhost (the arm computer), note that this must
# be the literal string "localhost" which is interpreted as "run a compilation
# locally if only a single job must be run":
export DISTCC_HOSTS="localhost 192.168.0.1"
#-----8<------------------------------------------
Setting up my own distcc server:
In /etc/hosts.allow, define distccd hosts or network, otherwise the master
won't be able to connect (distcc runs on port 3632):
#-----8<------------------------------------------
distccd: 192.168.0.0/24
#-----8<------------------------------------------
Create a file with defaults for the rc.distccd script which comes next:
#-----8<------------------------------------------
# Example /etc/default/distccd
DISTCCD_USER=nobody
DISTCCD_NUMJOBS=5
DISTCCD_ALLOW="192.168.0.0/24"
DISTCCD_PID="/var/run/distcc/distccd.pid"
#-----8<------------------------------------------
Create /etc/rc.d/rc.distccd as follows:
#-----8<------------------------------------------
# /etc/rc.d/rc.distccd
#
# Start/stop/restart the distcc daemon.
#
# Load defaults:
if [ -f /etc/default/distccd ] ; then
. /etc/default/distccd
fi
DISTCCD_USER=${DISTCCD_USER:-nobody}
DISTCCD_NUMJOBS=${DISTCCD_NUMJOBS:-5}
DISTCCD_ALLOW=${DISTCCD_ALLOW:-"192.168.0.0/24"}
DISTCCD_PID=${DISTCCD_PID:-/var/run/distcc/distccd.pid}
# If we allow cross-compiling, then define the architecture(s) space-separated:
DISTCCD_TARGET=${DISTCCD_TARGET:-"armv7hl"}
# Determine the ARCH we are running the distcc daemon on:
case "$( uname -m )" in
i?86) DISTCCARCH=i486 ;;
*) DISTCCARCH=$( uname -m ) ;;
esac
if [ -n "$DISTCCD_TARGET" ]; then
# Where will distcc find the crosscompiler:
DISTCC_BASEDIR=/tftpboot/crossdev/${DISTCCARCH}
for CARCH in $DISTCCD_TARGET ; do
DISTCC_PATH="${DISTCC_BASEDIR}/${CARCH}/bin:${DISTCC_PATH}"
done
echo "Distcc will look for crosscompilers in '$DISTCC_PATH'"
fi
distccd_start() {
echo "Starting distcc daemon: /usr/bin/distccd start"
mkdir -p /var/run/distcc
chown $DISTCCD_USER /var/run/distcc
touch /var/log/distccd.log
chown $DISTCCD_USER /var/log/distccd.log
DISTCCD_PATH=$DISTCC_PATH/bin \
/usr/bin/distccd --daemon -N 5 --user $DISTCCD_USER --allow $DISTCCD_ALLOW --jobs $DISTCCD_NUMJOBS --pid-file $DISTCCD_PID --log-file /var/log/distccd.log
}
distccd_stop() {
killall distccd
}
distccd_status() {
PIDS=$(cat $DISTCCD_PID 2>/dev/null)
if [ "$PIDS" == "" ]; then
echo "distccd is not running!"
else
echo "distccd is running at pid(s) ${PIDS}."
fi
}
case "$1" in
'start')
distccd_start
;;
'stop')
distccd_stop
;;
'restart')
distccd_stop
sleep 1
distccd_start
;;
'status')
distccd_status
;;
*)
echo "usage $0 start|stop|restart|status" ;;
esac
#-----8<------------------------------------------
|
