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linux/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
Paul E. McKenney 31e7490741 torture: Stop overwriting Make.out file with obsolete version 
The old approach placed all the build products into the b* directories,
which meant that some of these build products needed to be copied to
the proper directory in the res hierarchy.  The new approach leaves
things like .config and the .o files in the b1 directory, but directs
build output and diagnostics directly to the proper directory in the
res hierarchy.  Unfortunately, one of the copies was still carried out,
which could (and sometimes did) overwrite the build output and diagnostics
with obsolete output remaining in the b1 directory.

This commit therefore removes the offending "cp" command.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2018-08-29 09:20:48 -07:00

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#!/bin/bash
#
# 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.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.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}
if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
then
echo "kvm-test-1-run.sh :$builddir: Not a writable directory, cannot build into it"
exit 1
fi
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 $resdir/ConfigFragment
if test -r "$config_dir/CFcommon"
then
echo " --- $config_dir/CFcommon" >> $resdir/ConfigFragment.input
cat < $config_dir/CFcommon >> $resdir/ConfigFragment.input
config_override.sh $config_dir/CFcommon $config_template > $T/Kc1
grep '#CHECK#' $config_dir/CFcommon >> $resdir/ConfigFragment
else
cp $config_template $T/Kc1
fi
echo " --- $config_template" >> $resdir/ConfigFragment.input
cat $config_template >> $resdir/ConfigFragment.input
grep '#CHECK#' $config_template >> $resdir/ConfigFragment
if test -n "$TORTURE_KCONFIG_ARG"
then
echo $TORTURE_KCONFIG_ARG | tr -s " " "\012" > $T/cmdline
echo " --- --kconfig argument" >> $resdir/ConfigFragment.input
cat $T/cmdline >> $resdir/ConfigFragment.input
config_override.sh $T/Kc1 $T/cmdline > $T/Kc2
# Note that "#CHECK#" is not permitted on commandline.
else
cp $T/Kc1 $T/Kc2
fi
cat $T/Kc2 >> $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/Kc2 $builddir $resdir
then
# Had to build a kernel for this test.
QEMU="`identify_qemu $builddir/vmlinux`"
BOOT_IMAGE="`identify_boot_image $QEMU`"
cp $builddir/vmlinux $resdir
cp $builddir/.config $resdir
cp $builddir/Module.symvers $resdir > /dev/null || :
cp $builddir/System.map $resdir > /dev/null || :
if test -n "$BOOT_IMAGE"
then
cp $builddir/$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 $builddir/.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
cd $KVM
kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
if test -z "$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"`
vcpus=`identify_qemu_vcpus`
if test $cpu_count -gt $vcpus
then
echo CPU count limited from $cpu_count to $vcpus | tee -a $resdir/Warnings
cpu_count=$vcpus
fi
qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
# Generate architecture-specific and interaction-specific qemu arguments
qemu_args="$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_BUILDONLY"
then
echo Build-only run specified, boot/test omitted.
touch $resdir/buildonly
exit 0
fi
echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
( $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append "$qemu_append $boot_args"& echo $! > $resdir/qemu_pid; wait `cat $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
commandcompleted=0
sleep 10 # Give qemu's pid a chance to reach the file
if test -s "$resdir/qemu_pid"
then
qemu_pid=`cat "$resdir/qemu_pid"`
echo Monitoring qemu job at pid $qemu_pid
else
qemu_pid=""
echo Monitoring qemu job at yet-as-unknown pid
fi
while :
do
if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
then
qemu_pid=`cat "$resdir/qemu_pid"`
fi
kruntime=`awk '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
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
echo Grace period for qemu job at pid $qemu_pid
oldline="`tail $resdir/console.log`"
while :
do
kruntime=`awk 'BEGIN { print systime() - '"$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
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