啊这，我换 ubuntu 20.04 试试

18.04 和 20.04 也有同样的错误，我觉得问题似乎不在于 ubuntu 版本

@yteraa 在 v853 sdk 编译失败：undefined reference to `sunxi_challenge` 中说：

buildroot不支持 ubuntu:22.04，只有 openwrt支持，buildroot最高支持ubuntu18.04

啊这，我换 ubuntu 20.04 试试

不过 openwrt 也会报 sunxi_challenge 的问题……

2022-08-11 UPDATE:

官方 SDK 使用的 openwrt 版本略旧，无法使用 ubuntu 22.04 进行编译。降级为 ubuntu 20.04 补足依赖后成功编译，并未再遇到此错误。

buildroot 无法通过编译，可能也与版本有关，之后再研究吧

目前的docker：https://github.com/duskmoon314/dev-env

我在尝试搭建一个 docker image 用于编译 sdk
日常使用 mac，最近配置了一个 manjaro 用于开发，目标在这上面使用

docker image 基于 ubuntu:22.04，安装依赖如下：

apt install -y --no-install-recommends \
    git \
    ssh \
    ca-certificates \
    build-essential \
    iproute2 \
    iputils-ping \
    curl \
    wget \
    neovim \
    subversion \
    libncurses5-dev \
    zlib1g-dev \
    gawk \
    flex \
    quilt \
    libssl-dev \
    xsltproc \
    libxml-parser-perl \
    mercurial \
    bzr \
    ecj \
    cvs \
    unzip \
    lib32z1 \
    lib32z1-dev \
    lib32stdc++6 \
    libstdc++6 \
    python3 \
    python-is-python3 \
    xxd \
    # end of list

将容器运行并绑定 tina-v853-open 目录后，按照 buildroot 步骤进行编译：

duskmoon@devenv-container:/host$ ./build.sh config
========ACTION List: mk_config ;========
options : 
All available platform:
   0. android
   1. linux
Choice [linux]: 
All available linux_dev:
   0. bsp
   1. buildroot
   2. tinyos
   3. openwrt
Choice [buildroot]: 
All available ic:
   0. v853
Choice [v853]: 
All available board:
   0. vision
Choice [vision]: 
All available flash:
   0. default
   1. nor
Choice [default]: 

INFO: Prepare toolchain ...
INFO: kernel defconfig: generate /host/kernel/linux-4.9/.config by /host/device/config/chips/v853/configs/vision/linux-4.9/config-4.9
INFO: Prepare toolchain ...
make: Entering directory '/host/kernel/linux-4.9'
*** Default configuration is based on '../../../../../device/config/chips/v853/configs/vision/linux-4.9/config-4.9'
#
# configuration written to .config
#
make: Leaving directory '/host/kernel/linux-4.9'
make: Entering directory '/host/buildroot/buildroot-201902'
  GEN     /host/out/v853/vision/buildroot/buildroot/Makefile
Config.in.legacy:1769:warning: choice value used outside its choice group
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:33:warning: override: reassigning to symbol BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:33:warning: override: BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV changes choice state
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:34:warning: override: reassigning to symbol BR2_SYSTEM_BIN_SH_BASH
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:34:warning: override: BR2_SYSTEM_BIN_SH_BASH changes choice state
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:35:warning: override: reassigning to symbol BR2_TARGET_GENERIC_GETTY_PORT
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:36:warning: override: reassigning to symbol BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:36:warning: override: BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200 changes choice state
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:37:warning: override: reassigning to symbol BR2_ROOTFS_POST_BUILD_SCRIPT
/host/buildroot/buildroot-201902/configs/sun8iw21p1_longan_defconfig:38:warning: override: reassigning to symbol BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
#
# configuration written to /host/out/v853/vision/buildroot/buildroot/.config
#
make: Leaving directory '/host/buildroot/buildroot-201902'
INFO: buildroot defconfig is sun8iw21p1_longan_defconfig 
INFO: clean buildserver

Usage:
 kill [options] <pid> [...]

Options:
 <pid> [...]            send signal to every <pid> listed
 -<signal>, -s, --signal <signal>
                        specify the <signal> to be sent
 -q, --queue <value>    integer value to be sent with the signal
 -l, --list=[<signal>]  list all signal names, or convert one to a name
 -L, --table            list all signal names in a nice table

 -h, --help     display this help and exit
 -V, --version  output version information and exit

For more details see kill(1).
INFO: prepare_buildserver

duskmoon@devenv-container:/host$ ./build.sh       
========ACTION List: build_linuxdev;========
options : 
INFO: ----------------------------------------
INFO: build linuxdev ...
INFO: chip: sun8iw21p1
INFO: platform: linux
INFO: kernel: linux-4.9
INFO: board: vision
INFO: output: /host/out/v853/vision/buildroot
INFO: ----------------------------------------
INFO: don't build dtbo ...
INFO: build arisc
INFO: build_bootloader: brandy_path= /host/brandy/brandy-2.0
grep: /host/brandy/brandy-2.0/spl/Makefile: No such file or directory
build for sun8iw21p1_defconfig ...
...
arch/arm/cpu/armv7/spare_head.o:(.data.uboot_spare_head+0x508): undefined reference to `sunxi_challenge'
make: *** [Makefile:1480: u-boot] Error 1
ERROR: build brandy Failed
INFO: build_bootloader failed

执行命令都不是 root 用户，映射到系统的可以 sudo 的用户的

openwrt 也是类似的错误

希望有人帮忙看看我漏了什么 orz