1 files changed, 287 insertions, 0 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
new file mode 100755
index 000000000..6dc2b49b8
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -0,0 +1,287 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Run a kvm-based test of the specified tree on the specified configs.
+# Fully automated run and error checking, no graphics console.
+#
+# Execute this in the source tree.  Do not run it as a background task
+# because qemu does not seem to like that much.
+#
+# Usage: kvm-test-1-run.sh config builddir resdir seconds qemu-args boot_args
+#
+# qemu-args defaults to "-enable-kvm -nographic", along with arguments
+#			specifying the number of CPUs and other options
+#			generated from the underlying CPU architecture.
+# boot_args defaults to value returned by the per_version_boot_params
+#			shell function.
+#
+# Anything you specify for either qemu-args or boot_args is appended to
+# the default values.  The "-smp" value is deduced from the contents of
+# the config fragment.
+#
+# More sophisticated argument parsing is clearly needed.
+#
+# Copyright (C) IBM Corporation, 2011
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+T=${TMPDIR-/tmp}/kvm-test-1-run.sh.$$
+trap 'rm -rf $T' 0
+mkdir $T
+
+. functions.sh
+. $CONFIGFRAG/ver_functions.sh
+
+config_template=${1}
+config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
+title=`echo $config_template | sed -e 's/^.*\///'`
+builddir=${2}
+resdir=${3}
+if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
+then
+	echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
+	exit 1
+fi
+echo ' ---' `date`: Starting build
+echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
+touch $resdir/ConfigFragment.input
+
+# Combine additional Kconfig options into an existing set such that
+# newer options win.  The first argument is the Kconfig source ID, the
+# second the to-be-updated file within $T, and the third and final the
+# list of additional Kconfig options.  Note that a $2.tmp file is
+# created when doing the update.
+config_override_param () {
+	if test -n "$3"
+	then
+		echo $3 | sed -e 's/^ *//' -e 's/ *$//' | tr -s " " "\012" > $T/Kconfig_args
+		echo " --- $1" >> $resdir/ConfigFragment.input
+		cat $T/Kconfig_args >> $resdir/ConfigFragment.input
+		config_override.sh $T/$2 $T/Kconfig_args > $T/$2.tmp
+		mv $T/$2.tmp $T/$2
+		# Note that "#CHECK#" is not permitted on commandline.
+	fi
+}
+
+echo > $T/KcList
+config_override_param "$config_dir/CFcommon" KcList "`cat $config_dir/CFcommon 2> /dev/null`"
+config_override_param "$config_template" KcList "`cat $config_template 2> /dev/null`"
+config_override_param "--gdb options" KcList "$TORTURE_KCONFIG_GDB_ARG"
+config_override_param "--kasan options" KcList "$TORTURE_KCONFIG_KASAN_ARG"
+config_override_param "--kcsan options" KcList "$TORTURE_KCONFIG_KCSAN_ARG"
+config_override_param "--kconfig argument" KcList "$TORTURE_KCONFIG_ARG"
+cp $T/KcList $resdir/ConfigFragment
+
+base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
+if test "$base_resdir" != "$resdir" -a -f $base_resdir/bzImage -a -f $base_resdir/vmlinux
+then
+	# Rerunning previous test, so use that test's kernel.
+	QEMU="`identify_qemu $base_resdir/vmlinux`"
+	BOOT_IMAGE="`identify_boot_image $QEMU`"
+	KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
+	ln -s $base_resdir/Make*.out $resdir  # for kvm-recheck.sh
+	ln -s $base_resdir/.config $resdir  # for kvm-recheck.sh
+	# Arch-independent indicator
+	touch $resdir/builtkernel
+elif kvm-build.sh $T/KcList $resdir
+then
+	# Had to build a kernel for this test.
+	QEMU="`identify_qemu vmlinux`"
+	BOOT_IMAGE="`identify_boot_image $QEMU`"
+	cp vmlinux $resdir
+	cp .config $resdir
+	cp Module.symvers $resdir > /dev/null || :
+	cp System.map $resdir > /dev/null || :
+	if test -n "$BOOT_IMAGE"
+	then
+		cp $BOOT_IMAGE $resdir
+		KERNEL=$resdir/${BOOT_IMAGE##*/}
+		# Arch-independent indicator
+		touch $resdir/builtkernel
+	else
+		echo No identifiable boot image, not running KVM, see $resdir.
+		echo Do the torture scripts know about your architecture?
+	fi
+	parse-build.sh $resdir/Make.out $title
+else
+	# Build failed.
+	cp .config $resdir || :
+	echo Build failed, not running KVM, see $resdir.
+	if test -f $builddir.wait
+	then
+		mv $builddir.wait $builddir.ready
+	fi
+	exit 1
+fi
+if test -f $builddir.wait
+then
+	mv $builddir.wait $builddir.ready
+fi
+while test -f $builddir.ready
+do
+	sleep 1
+done
+seconds=$4
+qemu_args=$5
+boot_args=$6
+
+kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
+if test -z "$TORTURE_BUILDONLY"
+then
+	echo ' ---' `date`: Starting kernel
+fi
+
+# Generate -smp qemu argument.
+qemu_args="-enable-kvm -nographic $qemu_args"
+cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
+cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
+if test "$cpu_count" -gt "$TORTURE_ALLOTED_CPUS"
+then
+	echo CPU count limited from $cpu_count to $TORTURE_ALLOTED_CPUS | tee -a $resdir/Warnings
+	cpu_count=$TORTURE_ALLOTED_CPUS
+fi
+qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
+qemu_args="`specify_qemu_net "$qemu_args"`"
+
+# Generate architecture-specific and interaction-specific qemu arguments
+qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
+
+# Generate qemu -append arguments
+qemu_append="`identify_qemu_append "$QEMU"`"
+
+# Pull in Kconfig-fragment boot parameters
+boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
+# Generate kernel-version-specific boot parameters
+boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`"
+if test -n "$TORTURE_BOOT_GDB_ARG"
+then
+	boot_args="$boot_args $TORTURE_BOOT_GDB_ARG"
+fi
+echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" $TORTURE_QEMU_GDB_ARG > $resdir/qemu-cmd
+
+if test -n "$TORTURE_BUILDONLY"
+then
+	echo Build-only run specified, boot/test omitted.
+	touch $resdir/buildonly
+	exit 0
+fi
+
+# Decorate qemu-cmd with redirection, backgrounding, and PID capture
+sed -e 's/$/ 2>\&1 \&/' < $resdir/qemu-cmd > $T/qemu-cmd
+echo 'echo $! > $resdir/qemu_pid' >> $T/qemu-cmd
+
+# In case qemu refuses to run...
+echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
+
+# Attempt to run qemu
+( . $T/qemu-cmd; wait `cat  $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
+commandcompleted=0
+if test -z "$TORTURE_KCONFIG_GDB_ARG"
+then
+	sleep 10 # Give qemu's pid a chance to reach the file
+	if test -s "$resdir/qemu_pid"
+	then
+		qemu_pid=`cat "$resdir/qemu_pid"`
+		echo Monitoring qemu job at pid $qemu_pid
+	else
+		qemu_pid=""
+		echo Monitoring qemu job at yet-as-unknown pid
+	fi
+fi
+if test -n "$TORTURE_KCONFIG_GDB_ARG"
+then
+	echo Waiting for you to attach a debug session, for example: > /dev/tty
+	echo "    gdb $base_resdir/vmlinux" > /dev/tty
+	echo 'After symbols load and the "(gdb)" prompt appears:' > /dev/tty
+	echo "    target remote :1234" > /dev/tty
+	echo "    continue" > /dev/tty
+	kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
+fi
+while :
+do
+	if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
+	then
+		qemu_pid=`cat "$resdir/qemu_pid"`
+	fi
+	kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
+	if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
+	then
+		if test $kruntime -ge $seconds -o -f "$TORTURE_STOPFILE"
+		then
+			break;
+		fi
+		sleep 1
+	else
+		commandcompleted=1
+		if test $kruntime -lt $seconds
+		then
+			echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
+			grep "^(qemu) qemu:" $resdir/kvm-test-1-run.sh.out >> $resdir/Warnings 2>&1
+			killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
+			if test -n "$killpid"
+			then
+				echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
+				ps -fp $killpid >> $resdir/Warnings 2>&1
+			fi
+		else
+			echo ' ---' `date`: "Kernel done"
+		fi
+		break
+	fi
+done
+if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
+then
+	qemu_pid=`cat "$resdir/qemu_pid"`
+fi
+if test $commandcompleted -eq 0 -a -n "$qemu_pid"
+then
+	if ! test -f "$TORTURE_STOPFILE"
+	then
+		echo Grace period for qemu job at pid $qemu_pid
+	fi
+	oldline="`tail $resdir/console.log`"
+	while :
+	do
+		if test -f "$TORTURE_STOPFILE"
+		then
+			echo "PID $qemu_pid killed due to run STOP request" >> $resdir/Warnings 2>&1
+			kill -KILL $qemu_pid
+			break
+		fi
+		kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
+		if kill -0 $qemu_pid > /dev/null 2>&1
+		then
+			:
+		else
+			break
+		fi
+		must_continue=no
+		newline="`tail $resdir/console.log`"
+		if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
+		then
+			must_continue=yes
+		fi
+		last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
+		if test -z "$last_ts"
+		then
+			last_ts=0
+		fi
+		if test "$newline" != "$oldline" -a "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
+		then
+			must_continue=yes
+		fi
+		if test $must_continue = no -a $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
+		then
+			echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
+			kill -KILL $qemu_pid
+			break
+		fi
+		oldline=$newline
+		sleep 10
+	done
+elif test -z "$qemu_pid"
+then
+	echo Unknown PID, cannot kill qemu command
+fi
+
+parse-console.sh $resdir/console.log $title