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#!/bin/sh# SPDX-License-Identifier: GPL-2.0+## Without the -hw argument, runs a herd7 test and outputs verification# results to a file whose name is that of the specified litmus test,# but with ".out" appended.## If the --hw argument is specified, this script translates the .litmus# C-language file to the specified type of assembly and verifies that.# But in this case, litmus tests using complex synchronization (such as# locking, RCU, and SRCU) are cheerfully ignored.## Either way, return the status of the herd7 command.## Usage:#	runlitmus.sh file.litmus## Run this in the directory containing the memory model, specifying the# pathname of the litmus test to check.  The caller is expected to have# properly set up the LKMM environment variables.## Copyright IBM Corporation, 2019## Author: Paul E. McKenney <paulmck@linux.ibm.com> litmus=$1if test -f "$litmus" -a -r "$litmus"then	:else	echo ' !!! ' error: \"$litmus\" is not a readable file	exit 255fi if test -z "$LKMM_HW_MAP_FILE" -o ! -e $LKMM_DESTDIR/$litmus.outthen	# LKMM run	herdoptions=${LKMM_HERD_OPTIONS--conf linux-kernel.cfg}	echo Herd options: $herdoptions > $LKMM_DESTDIR/$litmus.out	/usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $litmus >> $LKMM_DESTDIR/$litmus.out 2>&1	ret=$?	if test -z "$LKMM_HW_MAP_FILE"	then		exit $ret	fi	echo " --- " Automatically generated LKMM output for '"'--hw $LKMM_HW_MAP_FILE'"' runfi # Hardware run T=/tmp/checklitmushw.sh.$$trap 'rm -rf $T' 0 2mkdir $T # Generate filenamesmapfile="Linux2${LKMM_HW_MAP_FILE}.map"themefile="$T/${LKMM_HW_MAP_FILE}.theme"herdoptions="-model $LKMM_HW_CAT_FILE"hwlitmus=`echo $litmus | sed -e 's/\.litmus$/.litmus.'${LKMM_HW_MAP_FILE}'/'`hwlitmusfile=`echo $hwlitmus | sed -e 's,^.*/,,'` # Don't run on litmus tests with complex synchronizationif ! scripts/simpletest.sh $litmusthen	echo ' --- ' error: \"$litmus\" contains locking, RCU, or SRCU	exit 254fi # Generate the assembly code and run herd7 on it.gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefilejingle7 -v -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.outif grep -q "Generated 0 tests" $T/$hwlitmusfile.jingle7.outthen	echo ' !!! ' jingle7 failed, errors in $hwlitmus.err	cp $T/$hwlitmusfile.jingle7.out $LKMM_DESTDIR/$hwlitmus.err	exit 253fi/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -unroll 0 $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1 exit $?