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-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh33
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm.sh21
2 files changed, 46 insertions, 8 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
index e07779a62634..6dc2b49b85ea 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -66,6 +66,7 @@ config_override_param () {
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 "$TORTURE_KCONFIG_ARG"
@@ -152,7 +153,11 @@ qemu_append="`identify_qemu_append "$QEMU"`"
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`"
-echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
+if test -n "$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
@@ -171,14 +176,26 @@ 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 $? > $resdir/qemu-retval ) &
commandcompleted=0
-sleep 10 # Give qemu's pid a chance to reach the file
-if test -s "$resdir/qemu_pid"
+if test -z "$TORTURE_KCONFIG_GDB_ARG"
then
- qemu_pid=`cat "$resdir/qemu_pid"`
- echo Monitoring qemu job at pid $qemu_pid
-else
- qemu_pid=""
- echo Monitoring qemu job at yet-as-unknown pid
+ sleep 10 # Give qemu's pid a chance to reach the file
+ if test -s "$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 $base_resdir/vmlinux" > /dev/tty
+ echo 'After symbols load and the "(gdb)" prompt appears:' > /dev/tty
+ echo " target remote :1234" > /dev/tty
+ echo " continue" > /dev/tty
+ kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
fi
while :
do
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index fc15b527172f..c30047e52b54 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -31,6 +31,9 @@ TORTURE_DEFCONFIG=defconfig
TORTURE_BOOT_IMAGE=""
TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
TORTURE_KCONFIG_ARG=""
+TORTURE_KCONFIG_GDB_ARG=""
+TORTURE_BOOT_GDB_ARG=""
+TORTURE_QEMU_GDB_ARG=""
TORTURE_KCONFIG_KASAN_ARG=""
TORTURE_KCONFIG_KCSAN_ARG=""
TORTURE_KMAKE_ARG=""
@@ -56,6 +59,7 @@ usage () {
echo " --defconfig string"
echo " --dryrun sched|script"
echo " --duration minutes"
+ echo " --gdb"
echo " --help"
echo " --interactive"
echo " --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
@@ -128,6 +132,11 @@ do
dur=$(($2*60))
shift
;;
+ --gdb)
+ TORTURE_KCONFIG_GDB_ARG="CONFIG_DEBUG_INFO=y"; export TORTURE_KCONFIG_GDB_ARG
+ TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
+ TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG
+ ;;
--help|-h)
usage
;;
@@ -253,6 +262,15 @@ do
done
touch $T/cfgcpu
configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
+if test -n "$TORTURE_KCONFIG_GDB_ARG"
+then
+ if test "`echo $configs_derep | wc -w`" -gt 1
+ then
+ echo "The --config list is: $configs_derep."
+ echo "Only one --config permitted with --gdb, terminating."
+ exit 1
+ fi
+fi
for CF1 in $configs_derep
do
if test -f "$CONFIGFRAG/$CF1"
@@ -328,6 +346,9 @@ TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
+TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG
+TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG
+TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG
TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG
TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG
TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG