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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-05-10 21:31:52 -0700
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-05-28 09:06:09 -0700
commit6dc82595ef0839a45c26075612f304979b6c92c2 (patch)
tree1cb66cd8af126c8ca011b47d88f7b46d24e802d8 /tools
parentcd6cb7c8a509b1e785fa67e2eb6bd5003198ac39 (diff)
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torture: Run kernel build in source directory
For historical reasons, rcutorture places its build products in a tools/testing/selftests/rcutorture/b1 directory using the O= kbuild command-line argument. However, doing this requires that the source directory be pristine: Not just "make clean" pristine, but instead "make mrproper" (or, equivalently, "make distclean") pristine. Therefore, rcutorture executes a "make mrproper" before each build. Unfortunately, "make mrproper" has the side effect of removing pretty much everything, including tags files and cscope databases, which can be inconvenient to people whose workflow centers around a single source tree. This commit therefore makes rcutorture do the build directly in the source directory, removing the need for "make mrproper". This works because all needed build products are moved to their proper place in the "res" directory immediately after the build completes, so that multiple rcutorture kernels can still run concurrently. Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'tools')
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/configinit.sh36
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-build.sh9
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh21
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm.sh3
4 files changed, 22 insertions, 47 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/configinit.sh b/tools/testing/selftests/rcutorture/bin/configinit.sh
index 40359486b3a8..bbeae6f67c36 100755
--- a/tools/testing/selftests/rcutorture/bin/configinit.sh
+++ b/tools/testing/selftests/rcutorture/bin/configinit.sh
@@ -1,7 +1,7 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
-# Usage: configinit.sh config-spec-file build-output-dir results-dir
+# Usage: configinit.sh config-spec-file results-dir
#
# Create a .config file from the spec file. Run from the kernel source tree.
# Exits with 0 if all went well, with 1 if all went well but the config
@@ -11,10 +11,6 @@
# desired settings, for example, "CONFIG_NO_HZ=y". For best results,
# this should be a full pathname.
#
-# The second argument is a optional path to a build output directory,
-# for example, "O=/tmp/foo". If this argument is omitted, the .config
-# file will be generated directly in the current directory.
-#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
@@ -26,34 +22,20 @@ mkdir $T
# Capture config spec file.
c=$1
-buildloc=$2
-resdir=$3
-builddir=
-if echo $buildloc | grep -q '^O='
-then
- builddir=`echo $buildloc | sed -e 's/^O=//'`
- if test ! -d $builddir
- then
- mkdir $builddir
- fi
-else
- echo Bad build directory: \"$buildloc\"
- exit 2
-fi
+resdir=$2
sed -e 's/^\(CONFIG[0-9A-Z_]*\)=.*$/grep -v "^# \1" |/' < $c > $T/u.sh
sed -e 's/^\(CONFIG[0-9A-Z_]*=\).*$/grep -v \1 |/' < $c >> $T/u.sh
grep '^grep' < $T/u.sh > $T/upd.sh
echo "cat - $c" >> $T/upd.sh
-make mrproper
-make $buildloc distclean > $resdir/Make.distclean 2>&1
-make $buildloc $TORTURE_DEFCONFIG > $resdir/Make.defconfig.out 2>&1
-mv $builddir/.config $builddir/.config.sav
-sh $T/upd.sh < $builddir/.config.sav > $builddir/.config
-cp $builddir/.config $builddir/.config.new
-yes '' | make $buildloc oldconfig > $resdir/Make.oldconfig.out 2> $resdir/Make.oldconfig.err
+make clean > $resdir/Make.clean 2>&1
+make $TORTURE_DEFCONFIG > $resdir/Make.defconfig.out 2>&1
+mv .config .config.sav
+sh $T/upd.sh < .config.sav > .config
+cp .config .config.new
+yes '' | make oldconfig > $resdir/Make.oldconfig.out 2> $resdir/Make.oldconfig.err
# verify new config matches specification.
-configcheck.sh $builddir/.config $c
+configcheck.sh .config $c
exit 0
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-build.sh b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
index c27a0bbb9c02..18d6518504ee 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
@@ -3,7 +3,7 @@
#
# Build a kvm-ready Linux kernel from the tree in the current directory.
#
-# Usage: kvm-build.sh config-template build-dir resdir
+# Usage: kvm-build.sh config-template resdir
#
# Copyright (C) IBM Corporation, 2011
#
@@ -15,8 +15,7 @@ then
echo "kvm-build.sh :$config_template: Not a readable file"
exit 1
fi
-builddir=${2}
-resdir=${3}
+resdir=${2}
T=${TMPDIR-/tmp}/test-linux.sh.$$
trap 'rm -rf $T' 0
@@ -29,14 +28,14 @@ CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_CONSOLE=y
___EOF___
-configinit.sh $T/config O=$builddir $resdir
+configinit.sh $T/config $resdir
retval=$?
if test $retval -gt 1
then
exit 2
fi
ncpus=`cpus2use.sh`
-make O=$builddir -j$ncpus $TORTURE_KMAKE_ARG > $resdir/Make.out 2>&1
+make -j$ncpus $TORTURE_KMAKE_ARG > $resdir/Make.out 2>&1
retval=$?
if test $retval -ne 0 || grep "rcu[^/]*": < $resdir/Make.out | egrep -q "Stop|Error|error:|warning:" || egrep -q "Stop|Error|error:" < $resdir/Make.out
then
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 003511494fd9..27b7b5693ede 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -36,11 +36,6 @@ config_template=${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
@@ -85,18 +80,18 @@ then
ln -s $base_resdir/.config $resdir # for kvm-recheck.sh
# Arch-independent indicator
touch $resdir/builtkernel
-elif kvm-build.sh $T/Kc2 $builddir $resdir
+elif kvm-build.sh $T/Kc2 $resdir
then
# Had to build a kernel for this test.
- QEMU="`identify_qemu $builddir/vmlinux`"
+ QEMU="`identify_qemu 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 || :
+ 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 $builddir/$BOOT_IMAGE $resdir
+ cp $BOOT_IMAGE $resdir
KERNEL=$resdir/${BOOT_IMAGE##*/}
# Arch-independent indicator
touch $resdir/builtkernel
@@ -107,7 +102,7 @@ then
parse-build.sh $resdir/Make.out $title
else
# Build failed.
- cp $builddir/.config $resdir || :
+ cp .config $resdir || :
echo Build failed, not running KVM, see $resdir.
if test -f $builddir.wait
then
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 3b4868906794..8c43eb43409b 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -342,7 +342,7 @@ function dump(first, pastlast, batchnum)
print "needqemurun="
jn=1
for (j = first; j < pastlast; j++) {
- builddir=KVM "/b1"
+ builddir=KVM "/b" j - first + 1
cpusr[jn] = cpus[j];
if (cfrep[cf[j]] == "") {
cfr[jn] = cf[j];
@@ -358,7 +358,6 @@ function dump(first, pastlast, batchnum)
print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
print "rm -f " builddir ".*";
print "touch " builddir ".wait";
- print "mkdir " builddir " > /dev/null 2>&1 || :";
print "mkdir " rd cfr[jn] " || :";
print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn] "/kvm-test-1-run.sh.out 2>&1 &"
print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";