Commit-ID: f189cc8c9451aa88bc718c57aa0228d2a7555956
Gitweb: http://git.kernel.org/tip/f189cc8c9451aa88bc718c57aa0228d2a7555956
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Thu, 6 Mar 2014 14:44:46 -0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 14 May 2014 09:46:04 -0700
torture: Choose bzImage location based on architecture
Currently, the scripts hard-code arch/x86/boot/bzImage, which does not
work well for other architectures. This commit therefore provides a
identify_boot_image function that selects the correct bzImage location
relative to the top of the Linux source tree. This commit also adds a
--bootimage argument that allows selecting some other file, for example,
"vmlinux".
This change requires that the definition of the QEMU variable be
computed earlier in order to identify where to look for the boot image
when it comes time to copy it to the results directory.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
.../testing/selftests/rcutorture/bin/functions.sh | 24 ++++++++++++++++++++++
.../selftests/rcutorture/bin/kvm-test-1-run.sh | 17 +++++++++------
tools/testing/selftests/rcutorture/bin/kvm.sh | 8 ++++++++
3 files changed, 43 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh
index 6b2adb2..d01b865 100644
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -76,6 +76,30 @@ configfrag_hotplug_cpu () {
grep -q '^CONFIG_HOTPLUG_CPU=y$' "$1"
}
+# identify_boot_image qemu-cmd
+#
+# Returns the relative path to the kernel build image. This will be
+# arch/<arch>/boot/bzImage unless overridden with the TORTURE_BOOT_IMAGE
+# environment variable.
+identify_boot_image () {
+ if test -n "$TORTURE_BOOT_IMAGE"
+ then
+ echo $TORTURE_BOOT_IMAGE
+ else
+ case "$1" in
+ qemu-system-x86_64|qemu-system-i386)
+ echo arch/x86/boot/bzImage
+ ;;
+ qemu-system-ppc64)
+ echo arch/powerpc/boot/bzImage
+ ;;
+ *)
+ echo ""
+ ;;
+ esac
+ fi
+}
+
# identify_qemu builddir
#
# Returns our best guess as to which qemu command is appropriate for
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index cfa97e1..2301982 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -94,9 +94,17 @@ fi
# CONFIG_YENTA=n
if kvm-build.sh $config_template $builddir $T
then
+ QEMU="`identify_qemu $builddir/vmlinux`"
+ BOOT_IMAGE="`identify_boot_image $QEMU`"
cp $builddir/Make*.out $resdir
cp $builddir/.config $resdir
- cp $builddir/arch/x86/boot/bzImage $resdir
+ if test -n "$BOOT_IMAGE"
+ then
+ cp $builddir/$BOOT_IMAGE $resdir
+ 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
if test -f $builddir.wait
then
@@ -124,9 +132,6 @@ cd $KVM
kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
echo ' ---' `date`: Starting kernel
-# Determine the appropriate flavor of qemu command.
-QEMU="`identify_qemu $builddir/vmlinux`"
-
# Generate -smp qemu argument.
qemu_args="-nographic $qemu_args"
cpu_count=`configNR_CPUS.sh $config_template`
@@ -151,13 +156,13 @@ boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
# Generate kernel-version-specific boot parameters
boot_args="`per_version_boot_params "$boot_args" $builddir/.config $seconds`"
-echo $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
+echo $QEMU $qemu_args -m 512 -kernel $builddir/$BOOT_IMAGE -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
if test -n "$TORTURE_BUILDONLY"
then
echo Build-only run specified, boot/test omitted.
exit 0
fi
-( $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append "$qemu_append $boot_args"; echo $? > $resdir/qemu-retval ) &
+( $QEMU $qemu_args -m 512 -kernel $builddir/$BOOT_IMAGE -append "$qemu_append $boot_args"; echo $? > $resdir/qemu-retval ) &
qemu_pid=$!
commandcompleted=0
echo Monitoring qemu job at pid $qemu_pid
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 37960d7..468d92f 100644
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -39,6 +39,7 @@ dryrun=""
KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
PATH=${KVM}/bin:$PATH; export PATH
TORTURE_DEFCONFIG=defconfig
+TORTURE_BOOT_IMAGE=""
TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
TORTURE_KMAKE_ARG=""
TORTURE_SUITE=rcu
@@ -53,6 +54,7 @@ kversion=""
usage () {
echo "Usage: $scriptname optional arguments:"
echo " --bootargs kernel-boot-arguments"
+ echo " --bootimage relative-path-to-kernel-boot-image"
echo " --buildonly"
echo " --configs \"config-file list\""
echo " --cpus N"
@@ -80,6 +82,11 @@ do
TORTURE_BOOTARGS="$2"
shift
;;
+ --bootimage)
+ checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
+ TORTURE_BOOT_IMAGE="$2"
+ shift
+ ;;
--buildonly)
TORTURE_BUILDONLY=1
;;
@@ -245,6 +252,7 @@ CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
KVM="$KVM"; export KVM
KVPATH="$KVPATH"; export KVPATH
PATH="$PATH"; export PATH
+TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
--
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