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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Runs the C-language litmus tests specified on standard input, using up
# to the specified number of CPUs (defaulting to all of them) and placing
# the results in the specified directory (defaulting to the same place
# the litmus test came from).
#
# sh runlitmushist.sh
#
# Run from the Linux kernel tools/memory-model directory.
# This script uses environment variables produced by parseargs.sh.
#
# Copyright IBM Corporation, 2018
#
# Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=/tmp/runlitmushist.sh.$$
trap 'rm -rf $T' 0
mkdir $T
if test -d litmus
then
:
else
echo Directory \"litmus\" missing, aborting run.
exit 1
fi
# Prefixes for per-CPU scripts
for ((i=0;i<$LKMM_JOBS;i++))
do
echo dir="$LKMM_DESTDIR" > $T/$i.sh
echo T=$T >> $T/$i.sh
echo herdoptions=\"$LKMM_HERD_OPTIONS\" >> $T/$i.sh
cat << '___EOF___' >> $T/$i.sh
runtest () {
echo ' ... ' /usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $1 '>' $dir/$1.out '2>&1'
if /usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $1 > $dir/$1.out 2>&1
then
if ! grep -q '^Observation ' $dir/$1.out
then
echo ' !!! Herd failed, no Observation:' $1
fi
else
exitcode=$?
if test "$exitcode" -eq 124
then
exitmsg="timed out"
else
exitmsg="failed, exit code $exitcode"
fi
echo ' !!! Herd' ${exitmsg}: $1
fi
}
___EOF___
done
awk -v q="'" -v b='\\' '
{
print "echo `grep " q "^P[0-9]" b "+(" q " " $0 " | tail -1 | sed -e " q "s/^P" b "([0-9]" b "+" b ")(.*$/" b "1/" q "` " $0
}' | bash |
sort -k1n |
awk -v ncpu=$LKMM_JOBS -v t=$T '
{
print "runtest " $2 >> t "/" NR % ncpu ".sh";
}
END {
for (i = 0; i < ncpu; i++) {
print "sh " t "/" i ".sh > " t "/" i ".sh.out 2>&1 &";
close(t "/" i ".sh");
}
print "wait";
}' | sh
cat $T/*.sh.out
if grep -q '!!!' $T/*.sh.out
then
echo ' ---' Summary: 1>&2
grep '!!!' $T/*.sh.out 1>&2
nfail="`grep '!!!' $T/*.sh.out | wc -l`"
echo 'Number of failed herd runs (e.g., timeout): ' $nfail 1>&2
exit 1
else
echo All runs completed successfully. 1>&2
exit 0
fi
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