build.sh: setup clang path for build kernel-5.10

Signed-off-by: hmz007 <hmz007@gmail.com>

build.sh

@@ -134,6 +134,13 @@ function build_uboot() {
 	}
 }
 
+function setup_clang() {
+	echo $PATH | grep clang-r416183b >/dev/null && return 0
+	true ${ANDROID_BUILD_TOP:=$(pwd)}
+	local CLANG=$ANDROID_BUILD_TOP/prebuilts/clang/host/linux-x86/clang-r416183b
+	export PATH=$CLANG/bin:$PATH
+}
+
 function build_kernel() {
 	local KERNEL_CFG=$(get_build_var PRODUCT_KERNEL_CONFIG)
 	local KERNEL_IMG=$(get_build_var PRODUCT_KERNEL_DTS)
@@ -147,6 +154,7 @@ function build_kernel() {
 	fi
 	if [ "$BUILD_KERNEL_WITH_CLANG" = true ] ; then
 		ADDON_ARGS="CROSS_COMPILE=aarch64-linux-gnu- LLVM=1 LLVM_IAS=1"
+		setup_clang
 	fi
 
 	cd ${KERNEL_DIR} && {

device/friendlyelec/nanopi3/build.sh

@@ -134,6 +134,13 @@ function build_uboot() {
 	}
 }
 
+function setup_clang() {
+	echo $PATH | grep clang-r416183b >/dev/null && return 0
+	true ${ANDROID_BUILD_TOP:=$(pwd)}
+	local CLANG=$ANDROID_BUILD_TOP/prebuilts/clang/host/linux-x86/clang-r416183b
+	export PATH=$CLANG/bin:$PATH
+}
+
 function build_kernel() {
 	local KERNEL_CFG=$(get_build_var PRODUCT_KERNEL_CONFIG)
 	local KERNEL_IMG=$(get_build_var PRODUCT_KERNEL_DTS)
@@ -147,6 +154,7 @@ function build_kernel() {
 	fi
 	if [ "$BUILD_KERNEL_WITH_CLANG" = true ] ; then
 		ADDON_ARGS="CROSS_COMPILE=aarch64-linux-gnu- LLVM=1 LLVM_IAS=1"
+		setup_clang
 	fi
 
 	cd ${KERNEL_DIR} && {