rt build support

.gitignore

@@ -4,3 +4,6 @@ images/initrd.img
 images/Image
 images/uImage_*
 images/system-top.dtb
+tmp_kernel_5.15_rt/
+build_*/
+linux-*

build.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
-source ./package.config
+PACKAGE_CONFIG=${PACKAGE_CONFIG:-package.config}
+. ${PACKAGE_CONFIG}
 
 FOLDER="`pwd`/${FOLDER_NAME}/"
 

build_kernel.sh

@@ -1,10 +1,12 @@
 #!/bin/bash
 
-. package.config
+
+PACKAGE_CONFIG=${PACKAGE_CONFIG:-package.config}
+. ${PACKAGE_CONFIG}
 
 
 CUR_DIR=`dirname $(realpath $0)`
-CROSS_COMPILE=${CROSS_COMPILE:-aarch64-linux-gnu-}
+
 if [ ! -e "${CROSS_COMPILE}gcc" ]; then
 	CROSS_COMPILE=aarch64-linux-gnu-
 fi

build_kernel_rt.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+. package_rt.config
+
+WORK=`pwd`
+
+echo "prepare rt source"
+if [ ! -e "${SRC}" ]; then
+    mkdir -p ${SRC}
+    cp -ar ${ORIGIN_SRC}/* ${SRC}/
+    cp -ar ${ORIGIN_SRC}/.gitignore ${SRC}/
+
+    echo "apply rt patches"
+
+    cd ${SRC}/
+    QUILT_PATCHES="${PATCHES_DIR}" QUILT_PC=.pc quilt push --quiltrc - -a --fuzz=0
+    RET=$?
+    if [ ${RET} -ne 0 ]; then
+        exit $RET
+    fi
+    git init
+    git add .
+    git commit -m "init rt"
+    cd ${WORK}
+fi
+
+export PACKAGE_CONFIG=package_rt.config
+./build_kernel.sh $1

conf/std_config

@@ -220,6 +220,7 @@ CONFIG_MULTIUSER=y
 CONFIG_FHANDLE=y
 CONFIG_POSIX_TIMERS=y
 CONFIG_PRINTK=y
+CONFIG_PRINTK_HOOK=y
 CONFIG_BUG=y
 CONFIG_ELF_CORE=y
 CONFIG_BASE_FULL=y

package_rt.config

@@ -0,0 +1,19 @@
+
+CROSS_COMPILE=/opt/gcc-arm-10.2-2020.11-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-
+FOLDER_NAME=build_none_rt
+CONFIG_NAME=rt_config
+CORES=8
+SRC=./tmp_kernel_5.15_rt/
+ORIGIN_SRC=../tmp_kernel_5.15/
+PATCHES_DIR=/data/kernel_build_uzi/kernel_obs_tool/debian/patches-rt
+
+RAM_ROOTFS=rootfs.tar.gz
+# RAM_ROOTFS=rootfs_tmp.tgz
+
+# D2000 dev board
+DTS_FOLDER=images/dts/d2000/
+DTB_TARGET=d2000-devboard-dsk.dtb
+KERNEL_ADDRESS=0x90200000
+ENTRY_POINT=0x90200000
+UIMAGE_NAME=uImage_bpo7_D2000
+UIMAGE_DESC="D2000 Kernel"