From 8785a11c555a8dc88fce52e77c8fdf27574f7f52 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Sat, 18 Dec 2021 12:50:38 +0800
Subject: [PATCH] update build.sh to remove buster support

---
 bsp/images/build.sh |  126 ++++++++++++++++++++++++++++++++---------
 1 files changed, 97 insertions(+), 29 deletions(-)

diff --git a/bsp/images/build.sh b/bsp/images/build.sh
index 5a37c98..74dd65c 100755
--- a/bsp/images/build.sh
+++ b/bsp/images/build.sh
@@ -18,11 +18,13 @@
 #
 
 PRJ_PATH=`pwd`
-IMAGE_PATH=${PRJ_PATH}/bin/
+PRJ_NAME=`basename ${PRJ_PATH}`
 
-BOARD=imx6ull
+IMAGE_PATH=${PRJ_PATH}/boot/
 
-# rootfs should be buildroot or stretch/buster/bullseye for debian system
+BOARD=igkboard
+
+# rootfs should be buildroot/yocto or bullseye for debian system
 ROOTFS=buildroot
 
 # linux kernel tarball path and branch
@@ -37,20 +39,21 @@
     IMAGE_SIZE=2048
 fi
 
-# 1 sector - for i.MX6 or i.MX7
-UBOOT_OFSET=1
+#i.MX6/i.MX7 read uboot from mmc start on sector #2
+UBOOT_OFSET=2
+MMC_SECSIZE=512
 
-# BootRom(U-boot) Size 10MB:  20480 Sectors * 512B
+# U-boot space Size 10MB
 UBOOT_SIZE=10
 
-# vfat boot partition size
+# vfat boot partition 100MB
 BOOT_SIZE=100
 
 
-IMG_UBOOT=${IMAGE_PATH}/u-boot-imx6ull-emmc.imx
+IMG_UBOOT=${PRJ_PATH}/u-boot-${BOARD}-emmc.imx
 IMG_KERNEL=${IMAGE_PATH}/zImage
-IMG_DTB=${IMAGE_PATH}/imx6ull-emmc.dtb
-ROOTFS_TAR=${TAR_PATH}/rootfs_${ROOTFS}.tar.bz2
+IMG_DTB=${IMAGE_PATH}/${BOARD}-emmc.dtb
+ROOTFS_TAR=${PRJ_PATH}/../rootfs/rootfs_${ROOTFS}.tar.bz2
 
 MNT_POINT=./mnt
 LOOP_DEV=`losetup  -f | cut -d/ -f3`
@@ -58,30 +61,29 @@
 set -u
 set -e
 
-if [ `id -u` != 0 ] ; then
-    echo "ERROR: This shell script must run as root"
-    exit 0;
-fi
-
-trap 'exit_handler' EXIT
 function exit_handler()
 {
     echo "Shell script exit now, do some clean work"
     echo ""
 
+    set +e
+
     mountpoint $MNT_POINT > /dev/null 2>&1
     if [ $? == 0 ] ; then
+        echo "umount ${MNT_POINT}"
         umount ${MNT_POINT}
     fi
 
     rm -rf ${MNT_POINT}
 
     if [ -L /dev/mapper/${LOOP_DEV}p1 ] ; then
+        echo "kpartx -dv /dev/${LOOP_DEV}"
         kpartx -dv /dev/${LOOP_DEV}
     fi
 
     losetup -a | grep "${LOOP_DEV}" > /dev/null 2>&1
     if [ $? == 0 ]  ; then
+        echo "losetup -d /dev/${LOOP_DEV}"
         losetup -d /dev/${LOOP_DEV}
     fi
 }
@@ -101,16 +103,13 @@
 
 function generate_image()
 {
-    # system image block count by block=512k
-    BLOCK_CNT=`expr 2 \* ${IMAGE_SIZE}`
-
     # FAT32 boot partition start/end address in MB
     BOOT_START=${UBOOT_SIZE}
     BOOT_END=`expr ${BOOT_START} + ${BOOT_SIZE}`
 
     msg_banner " <${STAGE}> Generate system image "
 
-    dd if=/dev/zero of=${IMAGE_NAME} bs=512k count=${BLOCK_CNT}  && sync
+    dd if=/dev/zero of=${IMAGE_NAME} bs=1024k count=${IMAGE_SIZE}  && sync
     chmod a+x ${IMAGE_NAME}
 
     msg_banner " <${STAGE}> Partition system image "
@@ -139,7 +138,7 @@
 function install_sysimg()
 {
     msg_banner " <${STAGE}> Install u-boot image"
-    sudo dd if=${IMG_UBOOT} of=${IMAGE_NAME} bs=1k seek=${UBOOT_OFSET} conv=notrunc,sync
+    sudo dd if=${IMG_UBOOT} of=${IMAGE_NAME} bs=${MMC_SECSIZE} seek=${UBOOT_OFSET} conv=notrunc,sync
 
     msg_banner " <${STAGE}> Install linux kernel image"
 
@@ -166,22 +165,91 @@
 
     mount -t ext4 /dev/mapper/${LOOP_DEV}p2 ${MNT_POINT}
     tar -xjf ${ROOTFS_TAR} -C ${MNT_POINT} && sync
+    chown -R root.root ${MNT_POINT} && sync
 
     umount ${MNT_POINT}
 }
 
-mkdir -p ${MNT_POINT}
+function do_distclean()
+{
+    printf "\n\n -- do distclean in `basename ${PRJ_PATH}` --\n\n"
 
-generate_image
+    rm -f  *${BOARD}*
+    rm -rf boot/*Image*
+    rm -rf boot/overlays/
+    rm -rf boot/*${BOARD}*
+    exit 0;
+}
 
-format_partition
+function do_image()
+{
+    mkdir -p ${MNT_POINT}
 
-install_sysimg
+    generate_image
 
-install_rootfs
+    format_partition
 
-cp ${IMG_UBOOT} .
-bzip2 ${IMAGE_NAME}
+    install_sysimg
 
-rm -rf ${MNT_POINT}
+    install_rootfs
 
+    msg_banner " bzip2 compress system image "
+    rm -f ${IMAGE_NAME}*.bz2
+    bzip2 ${IMAGE_NAME}
+
+    rm -rf ${MNT_POINT}
+
+    printf "\n\n -- generate system image done --\n\n"
+}
+
+function do_root()
+{
+    echo ""
+    if [[ $1 == "yes" ]] && [ `id -u` != 0 ] ; then
+        echo "ERROR: This action must run as root!"
+        echo ""
+        exit;
+    elif [[ $1 != "yes" ]] && [ `id -u` == 0 ] ; then
+        echo "ERROR: This action cannot run as root!"
+        echo ""
+        exit;
+    fi
+}
+
+function do_usage()
+{
+    echo ""
+    echo "Usage:"
+    echo "   $0 [-b] [-c] [-h]"
+    echo "       -b: download and build $PRJ_NAME"
+    echo "       -c: clean all the source code"
+    echo "       -h: show this help message"
+    echo ""
+    echo " WARNNING: This shell script must run as sudo"
+    echo ""
+    exit;
+}
+
+trap 'exit_handler' EXIT
+
+while getopts "bch" OPTNAME
+do
+    case "${OPTNAME}" in
+        "b")
+            break;
+            ;;
+
+        "c")
+            do_root "yes"
+            do_distclean
+            ;;
+
+        "*")
+            do_usage
+            ;;
+    esac
+done
+
+do_root "yes"
+do_image
+exit;

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