From f5d1a41c4fa42db584b52021b723ca5d2592ef36 Mon Sep 17 00:00:00 2001
From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 15 Mar 2022 15:53:59 +0900
Subject: [PATCH] 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>
---
 build-rpi4.sh | 37 +++++++++++++++++++++++++++++++++----
 1 file changed, 33 insertions(+), 4 deletions(-)

diff --git a/build-rpi4.sh b/build-rpi4.sh
index 30af5c5..45c1e8e 100755
--- 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
-- 
2.7.4