ZYNQ：使用PetaLinux打包 BOOT.BIN、image.ub

说明

个人还是比较喜欢灵活去管理各个部分的源码。

有关文章：
ZYNQ：PetaLinux提取Linux和UBoot配置、源码

编译Linux

取得Linux源代码和配置后，可以在其中执行make，编译Linux。

注意，编译前请导入PetaLinux环境变量：

• 设置和导出ARCH为arm或者arm64；
• 设置和导出CROSS_COMPILE，比如aarch64-linux-gnu-。

编译（通过，但是diff 有差异）：

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- xilinx_peta_defconfig
# xilinx_peta_defconfig 是 我们前文拷贝 .config 得来的。
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j 2

编译后得到vmlinux

打包 image.ub

将kernel、dtb、rootfs.img打包成image.ub。

• kernel：一般就是linux生成的elf文件。
• dtb：设备树，与驱动有关。
• rootfs.img：编译完成的文件系统。

所以，image.ub 没有那么神秘，就是一个包。

使用以下命令：

#!/bin/sh
CROSS_COMPILE=arm-linux-gnueabihf-

${CROSS_COMPILE}-objcopy -O binary -R .note -R .comment -S vmlinux linux.bin

gzip -9 linux.bin

mv -f linux.bin.gz linux.bin

#需要修改 .its
mkimage -f fit-image-petalinux-user-image.its image.ub 

编译 UBoot

取得UBoot源代码和配置后，需要有工具链的环境，编译：

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- clean
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- xilinx_peta_defconfig
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j 2

得到u-boot（实际上就是u-boot.elf）

打包 BOOT.BIN

1、需要3个文件：u-boot.elf、zynq_fsbl.elf、bootgen.bif。

• u-boot.elf：就是uboot编译生成的
• bootgen.bif：可以自己手写。
• zynq_fsbl.elf：Vivado创建PS以后，在SDK中创建File-New-Application Project-Zynq FSBL以后Build Project生成的。

2、修改bif文件，或者自己搞一个。

#cat build/bootgen.bif
//arch = zynq; split = false; format = BIN
the_ROM_image:
{
  [bootloader] /tmp/tmp.SXFL3UZOJ7/zynq_fsbl.elf
  /tmp/tmp.SXFL3UZOJ7/system.bit
  /tmp/tmp.SXFL3UZOJ7/u-boot.elf
}

3、使用下列命令创建BOOT.BIN。

bootgen -arch zynq -image bootgen.bif -o BOOT.BIN -w on


$ bootgen -help


****** Xilinx Bootgen v2018.3
  **** Build date : Nov 15 2018-19:22:29
    ** Copyright 1986-2018 Xilinx, Inc. All Rights Reserved.

------------------------------------------------------------------------------+
                       COMMAND LINE OPTIONS                                   |
-------------------------------+----------------------------------------------+
 -arch              [options]  | Xilinx Architecture                          |
                               | options: [zynq, zynqmp, fpga]                |
-------------------------------+----------------------------------------------+
 -image            <filename>  | Input Boot Image File (.bif)                 |
-------------------------------+----------------------------------------------+
 -o                <filename>  | Output filename in MCS/BIN format            |
-------------------------------+----------------------------------------------+
 -w                 [options]  | Overwrite mode                               |
                               | options: [on, off]                           |
-------------------------------+----------------------------------------------+
 -encrypt           [options]  | AES Key storage in chip (Zynq only)          |
                               | options: [bbram, efuse]                      |
-------------------------------+----------------------------------------------+
 -p                  <string>  | Part name                                    |
-------------------------------+----------------------------------------------+
 -efuseppkbits     <filename>  | Generate PPK hash for e-fuse                 |
-------------------------------+----------------------------------------------+
 -generate_hashes              | Generate SHA hashes (PKCS#1v1.5)             |
-------------------------------+----------------------------------------------+
 -spksignature     <filename>  | Generate SPK signature file                  |
-------------------------------+----------------------------------------------+
 -fill             <hex-byte>  | Fill byte for padding                        |
-------------------------------+----------------------------------------------+
 -split             [options]  | Split partitions to diff files               |
                               | options: [bin, mcs]                          |
-------------------------------+----------------------------------------------+
 -padimageheader    [options]  | Pad header tables                            |
                               | options: [0, 1]                              |
-------------------------------+----------------------------------------------+
 -process_bitstream [options]  | Outputs bitstream in bin/mcs format          |
                               | options: [bin, mcs]                          |
-------------------------------+----------------------------------------------+
 -generate_keys     [options]  | Generate authentication keys                 |
                               | options: [pem, rsa, obfuscatedkey]           |
-------------------------------+----------------------------------------------+
 -dual_qspi_mode    [options]  | Generate 2 output files for Dual QSPI        |
                               | options: [parallel, stacked <size>]          |
-------------------------------+----------------------------------------------+
 -log               [options]  | Generate log file                            |
                               | options: [error, warning, info, debug, trace]|
-------------------------------+----------------------------------------------+
 -zynqmpes1                    | Generate boot image for (1.0)ES1             |
-------------------------------+----------------------------------------------|
 -nonbooting                   | Generate an intermediate boot image          |
-------------------------------+----------------------------------------------|
 -encryption_dump              | Generate encryption log file                 |
-------------------------------+----------------------------------------------+
 -h | -help                    | Print the help summary                       |
-------------------------------+----------------------------------------------+
 -bif_help                     | Print the BIF help summary                   |
-------------------------------+----------------------------------------------+
 Note     : For more info on bootgen options, use the command                 |
            bootgen -help <option>                                            |
 Example  : bootgen -help efuseppkbits                                        |
------------------------------------------------------------------------------+

编译脚本

编译uboot、kernel方法很常见，我这里介绍我自己使用的方法。

思路：先把通用的配置保存起来，编译uboot、kernel的时候只需要读取配置就可以了

配置

##
#    Copyright By Schips, All Rights Reserved
#
#    File Name:  init.sh
#    Created  :  2020-07-21 09:12:10
#
##
#!/bin/sh

XLNX_SDK_CONFIG=~/.sdk_xlnx_config

cd `dirname $0`
SDKTOP=`cd ../../ && pwd`
TC=${SDKTOP}/toolchain
if [ ! -d "$TC" ]; then
    TC=`cd ${SDKTOP}/../toolchain&& pwd`
fi

add_to_config () {
    echo "$1" >> $XLNX_SDK_CONFIG 
}

echo "Initializing [$XLNX_SDK_CONFIG]"

rm  $XLNX_SDK_CONFIG 2>/dev/null
add_to_config "## For All"
add_to_config "export ARCH=arm"
add_to_config "export ARM_GCC_PATH=${TC}/petalinux_2018.3/gcc-arm-linux-gnueabi/bin"
add_to_config "export BUILD_CORE=4"
add_to_config ""
add_to_config "## app, kernel" 
add_to_config "export APP_CROSS    ?= arm-linux-gnueabihf-" 
add_to_config "export KERNEL_CROSS ?= arm-linux-gnueabihf-"
add_to_config "export KERNEL_CFGDIR ?= arch/arm/configs"
add_to_config "export KERNEL_CONFIG ?= xilinx_zynq7000_peta_defconfig"
add_to_config ""
add_to_config "## Uboot"
add_to_config "export UBOOT_CROSS  ?= arm-linux-gnueabihf-"
add_to_config "export UBOOT_CFGDIR  ?= configs"
add_to_config "#export UBOOT_CROSS?=  arm-none-eabi-"
add_to_config "export UBOOT_CONFIG ?= xilinx_zynq7000_peta_defconfig"

echo "============================="
cat $XLNX_SDK_CONFIG
echo "============================="
echo "Initalized   [$XLNX_SDK_CONFIG]"

uboot

#==============================================
##
#    Copyright By Schips, All Rights Reserved
#
#    File Name:  build_uboot.sh
#    Created  :  2020-07-13 10:49:24
#
##
#!/bin/sh
BASE=`pwd`
XLNX_SDK_CONFIG=~/.sdk_xlnx_config

get_config_from_sdk_config ()
{
    ret=`cat $XLNX_SDK_CONFIG  | grep -v "#" | grep -E '=|?=' | grep "$1" | grep "export" | awk -F= '{print $2}'`
    echo $ret
}

ARM_GCC_PATH=`get_config_from_sdk_config ARM_GCC_PATH`
export PATH=$PATH:$ARM_GCC_PATH

echo "Building [$BASE]"

BUILD_ARCH=`get_config_from_sdk_config ARCH`
BUILD_CROSS=`get_config_from_sdk_config UBOOT_CROSS`
CONFIG=`get_config_from_sdk_config UBOOT_CONFIG`
CORE=`get_config_from_sdk_config BUILD_CORE`

rebuild () {
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS clean
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS $CONFIG
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS -j $CORE
}

rebuild
echo "Built [$BASE]"

kernel

与uboot类似，配置项有一些小差异而已。

##
#    Copyright By Schips, All Rights Reserved
#
#    File Name:  build_kernel.sh
#    Created  :  2020-08-06 14:19:04
#
##
#!/bin/sh
BASE=`pwd`
XLNX_SDK_CONFIG=~/.sdk_xlnx_config
date_time=`date +%0m%0d-%0k:%0M`

get_config_from_sdk_config ()
{
    ret=`cat $XLNX_SDK_CONFIG  | grep -v "#" | grep -E '=|?=' | grep "$1" | grep "export" | awk -F= '{print $2}'`
    echo $ret
}

ARM_GCC_PATH=`get_config_from_sdk_config ARM_GCC_PATH`
export PATH=$PATH:$ARM_GCC_PATH

BUILD_ARCH=`get_config_from_sdk_config ARCH`
BUILD_CROSS=`get_config_from_sdk_config KERNEL_CROSS`
CONFIG=`get_config_from_sdk_config KERNEL_CONFIG`
CORE=`get_config_from_sdk_config BUILD_CORE`
SRCCONFIGDIR=`get_config_from_sdk_config KERNEL_CFGDIR`

help () {
    echo "Use following cmd : "
    echo "     help  : For help"
    echo "   config  : Memuconfig based on present config"
    echo " deconfig  : Reset config as [$CONFIG]"
    echo "    build  : Build based on present config"
    echo "    clean  : Clean object built"
    echo "  rebuild  : Reset config, clean and  build"
    echo "     dtbs  : Build dtbs"
}

if [ -z "$1" ]; then
    help
    exit 1
fi

config() {
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS menuconfig 

    echo "Do you want to save this config as [${CONFIG}] ?"
    echo "  [yy/n], default [n] in 5 seconds."
    read -t 5 answer

    if [  "$answer" ==  "yy"  ]; then
        echo "Saving .config as default"
        cp -v ${SRCCONFIGDIR}/${CONFIG} .${CONFIG}_backup_${date_time}
        cp -v .config ${SRCCONFIGDIR}/xilinx_zynq7000_peta_defconfig
        echo "Saved .config as default"
    fi
}

deconfig () {
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS clean
    cp .config .config_backup_${date_time} -v 2>/dev/null
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS $CONFIG
    echo "Configed with [$CONFIG]"
}

rebuild () {
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS clean
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS $CONFIG
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS -j $CORE
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS dtbs -j $CORE
}

build () {
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS -j $CORE
}

dtbs () {
    make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS -j $CORE dtbs
}

clean () {
	make ARCH=${BUILD_ARCH} CROSS_COMPILE=$BUILD_CROSS clean
}

command -v $1 >/dev/null 2>&1 || { help && exit 1;  }
echo "Doing [$1]"
$1
echo "Done with [$1]"