218 lines
8.5 KiB
Bash
218 lines
8.5 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Run a kvm-based test of the specified tree on the specified configs.
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# Fully automated run and error checking, no graphics console.
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#
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# Execute this in the source tree. Do not run it as a background task
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# because qemu does not seem to like that much.
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#
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# Usage: kvm-test-1-run.sh config resdir seconds qemu-args boot_args_in
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#
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# qemu-args defaults to "-enable-kvm -nographic", along with arguments
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# specifying the number of CPUs and other options
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# generated from the underlying CPU architecture.
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# boot_args_in defaults to value returned by the per_version_boot_params
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# shell function.
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#
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# Anything you specify for either qemu-args or boot_args_in is appended to
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# the default values. The "-smp" value is deduced from the contents of
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# the config fragment.
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#
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# More sophisticated argument parsing is clearly needed.
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#
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# Copyright (C) IBM Corporation, 2011
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#
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# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
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T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run.sh.XXXXXX`"
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trap 'rm -rf $T' 0
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. functions.sh
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. $CONFIGFRAG/ver_functions.sh
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config_template=${1}
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config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
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title=`echo $config_template | sed -e 's/^.*\///'`
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resdir=${2}
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if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
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then
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echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
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exit 1
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fi
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echo ' ---' `date`: Starting build, PID $$
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echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
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touch $resdir/ConfigFragment.input
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# Combine additional Kconfig options into an existing set such that
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# newer options win. The first argument is the Kconfig source ID, the
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# second the to-be-updated file within $T, and the third and final the
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# list of additional Kconfig options. Note that a $2.tmp file is
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# created when doing the update.
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config_override_param () {
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if test -n "$3"
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then
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echo $3 | sed -e 's/^ *//' -e 's/ *$//' | tr -s " " "\012" > $T/Kconfig_args
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echo " --- $1" >> $resdir/ConfigFragment.input
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cat $T/Kconfig_args >> $resdir/ConfigFragment.input
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config_override.sh $T/$2 $T/Kconfig_args > $T/$2.tmp
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mv $T/$2.tmp $T/$2
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# Note that "#CHECK#" is not permitted on commandline.
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fi
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}
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echo > $T/KcList
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config_override_param "$config_dir/CFcommon" KcList "`cat $config_dir/CFcommon 2> /dev/null`"
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config_override_param "$config_template" KcList "`cat $config_template 2> /dev/null`"
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config_override_param "--gdb options" KcList "$TORTURE_KCONFIG_GDB_ARG"
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config_override_param "--kasan options" KcList "$TORTURE_KCONFIG_KASAN_ARG"
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config_override_param "--kcsan options" KcList "$TORTURE_KCONFIG_KCSAN_ARG"
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config_override_param "--kconfig argument" KcList "$TORTURE_KCONFIG_ARG"
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cp $T/KcList $resdir/ConfigFragment
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base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
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if test "$base_resdir" != "$resdir" && test -f $base_resdir/bzImage && test -f $base_resdir/vmlinux
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then
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# Rerunning previous test, so use that test's kernel.
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QEMU="`identify_qemu $base_resdir/vmlinux`"
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BOOT_IMAGE="`identify_boot_image $QEMU`"
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KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
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ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh
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ln -s $base_resdir/.config $resdir # for kvm-recheck.sh
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# Arch-independent indicator
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touch $resdir/builtkernel
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elif test "$base_resdir" != "$resdir"
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then
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# Rerunning previous test for which build failed
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ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh
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ln -s $base_resdir/.config $resdir # for kvm-recheck.sh
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echo Initial build failed, not running KVM, see $resdir.
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if test -f $resdir/build.wait
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then
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mv $resdir/build.wait $resdir/build.ready
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fi
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exit 1
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elif kvm-build.sh $T/KcList $resdir
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then
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# Had to build a kernel for this test.
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QEMU="`identify_qemu vmlinux`"
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BOOT_IMAGE="`identify_boot_image $QEMU`"
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cp vmlinux $resdir
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cp .config $resdir
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cp Module.symvers $resdir > /dev/null || :
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cp System.map $resdir > /dev/null || :
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if test -n "$BOOT_IMAGE"
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then
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cp $BOOT_IMAGE $resdir
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KERNEL=$resdir/${BOOT_IMAGE##*/}
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# Arch-independent indicator
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touch $resdir/builtkernel
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else
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echo No identifiable boot image, not running KVM, see $resdir.
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echo Do the torture scripts know about your architecture?
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fi
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parse-build.sh $resdir/Make.out $title
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else
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# Build failed.
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cp .config $resdir || :
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echo Build failed, not running KVM, see $resdir.
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if test -f $resdir/build.wait
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then
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mv $resdir/build.wait $resdir/build.ready
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fi
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exit 1
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fi
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if test -f $resdir/build.wait
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then
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mv $resdir/build.wait $resdir/build.ready
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fi
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while test -f $resdir/build.ready
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do
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sleep 1
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done
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seconds=$3
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qemu_args=$4
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boot_args_in=$5
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if test -z "$TORTURE_BUILDONLY"
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then
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echo ' ---' `date`: Starting kernel
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fi
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# Generate -smp qemu argument.
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qemu_args="-enable-kvm -nographic $qemu_args"
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cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
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cpu_count=`configfrag_boot_cpus "$boot_args_in" "$config_template" "$cpu_count"`
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if test "$cpu_count" -gt "$TORTURE_ALLOTED_CPUS"
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then
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echo CPU count limited from $cpu_count to $TORTURE_ALLOTED_CPUS | tee -a $resdir/Warnings
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cpu_count=$TORTURE_ALLOTED_CPUS
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fi
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qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
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qemu_args="`specify_qemu_net "$qemu_args"`"
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# Generate architecture-specific and interaction-specific qemu arguments
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qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
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# Generate qemu -append arguments
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qemu_append="`identify_qemu_append "$QEMU"`"
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# Pull in Kconfig-fragment boot parameters
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boot_args="`configfrag_boot_params "$boot_args_in" "$config_template"`"
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# Generate kernel-version-specific boot parameters
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boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`"
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if test -n "$TORTURE_BOOT_GDB_ARG"
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then
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boot_args="$boot_args $TORTURE_BOOT_GDB_ARG"
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fi
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# Give bare-metal advice
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modprobe_args="`echo $boot_args | tr -s ' ' '\012' | grep "^$TORTURE_MOD\." | sed -e "s/$TORTURE_MOD\.//g"`"
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kboot_args="`echo $boot_args | tr -s ' ' '\012' | grep -v "^$TORTURE_MOD\."`"
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testid_txt="`dirname $resdir`/testid.txt"
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touch $resdir/bare-metal
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echo To run this scenario on bare metal: >> $resdir/bare-metal
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echo >> $resdir/bare-metal
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echo " 1." Set your bare-metal build tree to the state shown in this file: >> $resdir/bare-metal
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echo " " $testid_txt >> $resdir/bare-metal
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echo " 2." Update your bare-metal build tree"'"s .config based on this file: >> $resdir/bare-metal
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echo " " $resdir/ConfigFragment >> $resdir/bare-metal
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echo " 3." Make the bare-metal kernel"'"s build system aware of your .config updates: >> $resdir/bare-metal
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echo " " $ 'yes "" | make oldconfig' >> $resdir/bare-metal
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echo " 4." Build your bare-metal kernel. >> $resdir/bare-metal
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echo " 5." Boot your bare-metal kernel with the following parameters: >> $resdir/bare-metal
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echo " " $kboot_args >> $resdir/bare-metal
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echo " 6." Start the test with the following command: >> $resdir/bare-metal
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echo " " $ modprobe $TORTURE_MOD $modprobe_args >> $resdir/bare-metal
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echo " 7." After some time, end the test with the following command: >> $resdir/bare-metal
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echo " " $ rmmod $TORTURE_MOD >> $resdir/bare-metal
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echo " 8." Copy your bare-metal kernel"'"s .config file, overwriting this file: >> $resdir/bare-metal
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echo " " $resdir/.config >> $resdir/bare-metal
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echo " 9." Copy the console output from just before the modprobe to just after >> $resdir/bare-metal
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echo " " the rmmod into this file: >> $resdir/bare-metal
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echo " " $resdir/console.log >> $resdir/bare-metal
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echo "10." Check for runtime errors using the following command: >> $resdir/bare-metal
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echo " " $ tools/testing/selftests/rcutorture/bin/kvm-recheck.sh `dirname $resdir` >> $resdir/bare-metal
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echo >> $resdir/bare-metal
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echo Some of the above steps may be skipped if you build your bare-metal >> $resdir/bare-metal
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echo kernel here: `head -n 1 $testid_txt | sed -e 's/^Build directory: //'` >> $resdir/bare-metal
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echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" $TORTURE_QEMU_GDB_ARG > $resdir/qemu-cmd
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echo "# TORTURE_SHUTDOWN_GRACE=$TORTURE_SHUTDOWN_GRACE" >> $resdir/qemu-cmd
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echo "# seconds=$seconds" >> $resdir/qemu-cmd
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echo "# TORTURE_KCONFIG_GDB_ARG=\"$TORTURE_KCONFIG_GDB_ARG\"" >> $resdir/qemu-cmd
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echo "# TORTURE_JITTER_START=\"$TORTURE_JITTER_START\"" >> $resdir/qemu-cmd
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echo "# TORTURE_JITTER_STOP=\"$TORTURE_JITTER_STOP\"" >> $resdir/qemu-cmd
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echo "# TORTURE_TRUST_MAKE=\"$TORTURE_TRUST_MAKE\"; export TORTURE_TRUST_MAKE" >> $resdir/qemu-cmd
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echo "# TORTURE_CPU_COUNT=$cpu_count" >> $resdir/qemu-cmd
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if test -n "$TORTURE_BUILDONLY"
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then
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echo Build-only run specified, boot/test omitted.
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touch $resdir/buildonly
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exit 0
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fi
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kvm-test-1-run-qemu.sh $resdir
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parse-console.sh $resdir/console.log $title
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