URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
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- This comparison shows the changes necessary to convert path
/openrisc/trunk/gnu-stable
- from Rev 831 to Rev 832
- ↔ Reverse comparison
Rev 831 → Rev 832
/start-linuxes.sh
0,0 → 1,279
#!/bin/bash |
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# Copyright (C) 2011 Embecosm Limited |
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# Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> |
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# This file is a script to start up a group of Linux instances |
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# This program is free software; you can redistribute it and/or modify it |
# under the terms of the GNU General Public License as published by the Free |
# Software Foundation; either version 3 of the License, or (at your option) |
# any later version. |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
# more details. |
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# You should have received a copy of the GNU General Public License along |
# with this program. If not, see <http://www.gnu.org/licenses/>. |
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# ------------------------------------------------------------------------------ |
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# Start up a batch of linux sessions ready for testing. |
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# There are a number of ways of starting up vmlinux to force a particular IP |
# address to be used, which are specified by the first argument |
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# DHCP - Linux will get an IP address via DHCP. In this case we must poll |
# the router to get the newly created IP address. |
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# STATIC - We force Linux to chose a static address, by an explicit ifconfig |
# in the etc/init.d/rcS of the initramfs. We need to select an IP |
# address that is not currently being used. |
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# In both cases, potentially we get in a mess if someone else is starting up |
# sessions at this time. |
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# ------------------------------------------------------------------------------ |
# Tell the user how to use this command |
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# If we are doing STATIC startup, the <count> must be followed by <count> IP |
# addresses. |
# ------------------------------------------------------------------------------ |
function bad_args { |
echo "Usage: start-linuxes.sh DHCP|STATIC <count> <dir> [ <ip> <ip> ... ]" |
echo " <count> - Number of Linux sessions to start up" |
echo " <dir> - Linux directory" |
echo " <ip> - IP addresses (only if STATIC)" |
} |
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# ------------------------------------------------------------------------------ |
# Check the args |
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# Remote machine name is optional. For argument usage, see function bad_args. |
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# @param[in] $1 Type of processing (DHCP or STATIC) |
# @pmara[in] $2 Count of Linux instances to start |
# @param[in] $3 Linux directory |
# @param[in] $4 ... IP addresses if static startup |
# ------------------------------------------------------------------------------ |
function get_args { |
# Check We have at least the first two arguments |
if [ $# -lt 3 ] |
then |
bad_args |
exit 1 |
fi |
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type=$1 |
shift |
count=$1 |
shift |
linux_dir=$1 |
shift |
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# Check type and get static IP addresses |
case "x${type}" in |
"xSTATIC" ) |
# Get all the IP addresses |
for (( i=0 ; i < ${count} ; i++ )) |
do |
if [ "x${i}" == "x" ] |
then |
bad_args |
exit 1 |
fi |
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ip_list[${i}]=$1 |
shift |
done |
;; |
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"xDHCP" ) |
# No extra args for DHCP |
;; |
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"x*" ) |
# Not recognized |
bad_args |
exit 1 |
;; |
esac |
} |
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# ------------------------------------------------------------------------------ |
# Allocate an unused TAP device |
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# We need /dev/tap?? that is not being used at present. We have a custom |
# program to do this. |
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# @return The TAP to use. |
# ------------------------------------------------------------------------------ |
function allocate_tap { |
for (( i=0 ; ${i} < 20 ; i=${i} + 1 )) |
do |
if ./check-tap "tap${i}" |
then |
echo "tap${i}" |
exit |
fi |
done |
} |
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# ------------------------------------------------------------------------------ |
# Start up one STATIC instance |
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# We need to edit the IP address into rcS, rebuild Linux and start Linux using |
# the next available TAP. |
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# This could go wrong if someone else starts up a machine at the same time. We |
# could reserve an unlikely block to avoid this, and flock this code, to avoid |
# another instance causing trouble. For now we leave it unprotected. |
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# @param[in] $1 An index number of this instance |
# @param[in] $2 The IP address to use |
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# @return The Linux process ID |
# ------------------------------------------------------------------------------ |
function start_one_static { |
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ip=$2 |
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# A new Linux instance will require a new TAP in its config |
tap=`allocate_tap $*` |
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# Edit the Or1ksim configuration file to use the allocated TAP |
sed -i -e "s/^\( *tap_dev *= *\).*$/\1\"$tap\"/" \ |
${linux_dir}/arch/openrisc/or1ksim_eth.cfg |
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# Edit the Linux rcS file and rebuild |
sed -i -e "s/ifconfig eth0.*up/ifconfig eth0 ${ip} up/" \ |
${linux_dir}/arch/openrisc/support/initramfs/etc/init.d/rcS |
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cd ${linux_dir} |
make vmlinux ARCH=openrisc CROSS_COMPILE=/opt/or32-new/bin/or32-elf- \ |
> /dev/null 2>&1 |
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if [ $? != 0 ]; |
then |
echo "start-linux.sh: 'make vmlinux' failed" |
exit 1 |
fi |
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cd - > /dev/null 2>&1 |
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# Start up Linux and allow time for the ramdisk to unpack, by waiting |
# until ping to the IP address is OK. |
or32-elf-sim -f ${linux_dir}/arch/openrisc/or1ksim_eth.cfg \ |
${linux_dir}/vmlinux \ |
> `hostname`-linux-console-$$-$1.log 2>&1 & linux_pid=$! |
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until ping -c 1 -q ${ip} > /dev/null 2>&1 |
do |
sleep 1 |
done |
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# make us nicer than normal, then return the new process ID |
renice +1 ${linux_pid} > /dev/null 2>&1 |
echo "${linux_pid}" |
} |
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# ------------------------------------------------------------------------------ |
# Start up one DHCP instance |
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# Start up Linux using the next available TAP. |
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# @param[in] $1 An index number of this instance |
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# @return The Linux process ID |
# ------------------------------------------------------------------------------ |
function start_one_dhcp { |
# A new Linux instance will require a new TAP in its config |
tap=`allocate_tap $*` |
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# Edit the Or1ksim configuration file to use the allocated TAP |
sed -i -e "s/^\( *tap_dev *= *\).*$/\1\"$tap\"/" \ |
${linux_dir}/arch/openrisc/or1ksim_eth.cfg |
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# Start up Linux |
or32-elf-sim -f ${linux_dir}/arch/openrisc/or1ksim_eth.cfg \ |
${linux_dir}/vmlinux > `hostname`-linux-output-$$-$1 2>&1 & linux_pid=$! |
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# make us nicer than normal, then return the new process ID |
renice +1 ${linux_pid} > /dev/null 2>&1 |
echo "${linux_pid}" |
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} |
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# ------------------------------------------------------------------------------ |
# Start up using DHCP on the local machine |
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# We wait for 30 seconds between each Linux startup, to avoid flooding the |
# DHCP server. |
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# @return A list of IP address of the Linux instances |
# ------------------------------------------------------------------------------ |
function start_all_dhcp { |
echo "DHCP startup in progress..." |
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for (( i=0 ; ${i} < ${count} ; i=${i} + 1 )) |
do |
one_res=`start_one_dhcp ${i}` |
res="${res} ${one_res}" |
sleep 30 |
done |
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echo ${res} |
} |
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# ------------------------------------------------------------------------------ |
# Start up using STATIC on the local machine |
# ------------------------------------------------------------------------------ |
function start_all_static { |
echo "STATIC startup in progress..." |
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for (( i=0 ; ${i} < ${count} ; i=${i} + 1 )) |
do |
one_res=`start_one_static ${i} ${ip_list[${i}]}` |
res="${res} ${one_res}" |
done |
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echo ${res} |
} |
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# ------------------------------------------------------------------------------ |
# Main program |
# ------------------------------------------------------------------------------ |
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# Some useful files |
tmp1=/tmp/start-linuxes-1-$$ |
tmp2=/tmp/start-linuxes-2-$$ |
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# Check the arguments |
get_args $* |
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# Start Linuxes |
case "${type}" in |
"DHCP" ) |
start_all_dhcp |
;; |
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"STATIC" ) |
start_all_static |
;; |
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"*" ) |
echo "Abort at line ${LINENO} in ${BASH_SOURCE[0]}" |
exit 255 |
;; |
esac |
start-linuxes.sh
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