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