#!/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=$1 if test -f "$litmus" -a -r "$litmus" then
: else echo' !!! ' error: \"$litmus\" is not a readable file
exit 255 fi
if test -z "$LKMM_HW_MAP_FILE" -o ! -e $LKMM_DESTDIR/$litmus.out then # 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 $LKMM_HW_MAP_FILE'"' run fi
# Generate filenames
mapfile="Linux2${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 synchronization if ! scripts/simpletest.sh $litmus then echo' --- ' error: \"$litmus\" contains locking, RCU, or SRCU
exit 254 fi
# Generate the assembly code and run herd7 on it.
gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
jingle7 -v -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.out if grep -q "Generated 0 tests" $T/$hwlitmusfile.jingle7.out then echo' !!! ' jingle7 failed, errors in $hwlitmus.err cp $T/$hwlitmusfile.jingle7.out $LKMM_DESTDIR/$hwlitmus.err
exit 253 fi
/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -unroll 0 $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1
exit $?
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