script: update build-rpi4 script to support RT kernel build

Update build-rpi4 script to support RT kernel build.

Change-Id: I6f6e8e7579b4ae10defc4110949135f0459871ed
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

diff --git a/build-rpi4.sh b/build-rpi4.sh
index 30af5c5..45c1e8e 100755 (executable)
--- a/build-rpi4.sh
+++ b/build-rpi4.sh
@@ -3,10 +3,11 @@
 NCPUS=`cat /proc/cpuinfo | grep processor | wc -l`
 NCPUS=$(($NCPUS * 2))
 
-if [ $# != 1 ]; then
-       echo "Usage : $0 <architecture>"
+if [ $# == 0 ]; then
+       echo "Usage : $0 <architecture> [rt]"
        echo "  architecture : arm or arm64"
        echo "  e.g) $0 arm"
+       echo "  e.g) $0 arm64 rt"
        exit
 fi
 
@@ -21,6 +22,34 @@ check_ccache()
 
 check_ccache
 
+cleanup_localversion()
+{
+       rm -f localversion-rt
+}
+
+DEFCONFIG=tizen_bcm2711_defconfig
+touch .kernel_buildenv
+if [ "$2" = "rt" ]; then
+       echo "Build RT-Kernel"
+       BUILD_VERSION=`cat .kernel_buildenv`
+       if [ "$BUILD_VERSION" != "RT" ]; then
+               echo "Previous .config is for Normal Kernel, so remove"
+               rm -f .config
+       fi
+       DEFCONFIG=tizen_bcm2711_rt_defconfig
+       cp _localversion-rt localversion-rt
+       trap cleanup_localversion EXIT
+       echo "RT" > ./.kernel_buildenv
+else
+       echo "Build Normal-Kernel"
+       BUILD_VERSION=`cat .kernel_buildenv`
+       if [ "$BUILD_VERSION" == "RT" ]; then
+               echo "Previous .config is for RT Kernel, so remove"
+               rm -f .config
+       fi
+       echo "NORMAL" > ./.kernel_buildenv
+fi
+
 if [ $1 = "arm" ]; then
        echo "ARM"
 
@@ -28,7 +57,7 @@ if [ $1 = "arm" ]; then
        rm -f arch/arm/boot/dts/*.dtb
 
        if ! [ -e .config ] ; then
-               make ARCH=arm CROSS_COMPILE="${CCACHE} arm-linux-gnueabi-" tizen_bcm2711_defconfig
+               make ARCH=arm CROSS_COMPILE="${CCACHE} arm-linux-gnueabi-" ${DEFCONFIG}
        fi
 
        make ARCH=arm CROSS_COMPILE="${CCACHE} arm-linux-gnueabi-" -j $NCPUS
@@ -44,7 +73,7 @@ elif [ $1 = "arm64" ]; then
        rm -f arch/arm64/boot/dts/broadcom/*.dtb
 
        if ! [ -e .config ] ; then
-               make ARCH=arm64 CROSS_COMPILE="${CCACHE} aarch64-linux-gnu-" tizen_bcm2711_defconfig
+               make ARCH=arm64 CROSS_COMPILE="${CCACHE} aarch64-linux-gnu-" ${DEFCONFIG}
        fi
        make ARCH=arm64 CROSS_COMPILE="${CCACHE} aarch64-linux-gnu-" -j $NCPUS
        if [ ! -f "./arch/arm64/boot/Image" ]; then