OEToolchainConfig.cmake不是由cmake食谱Yocto安装的。

Question

我一直在和Yocto玩，以便为我的Raspberry Pi生成一个图像，这也是一个用于交叉编译的SDK。我希望输入要安装在映像文件中的软件包，并使用以下方法生成映像：

bitbake my-image

并使用以下方法生成sdk：

bitbake my-image -c populate_sdk

工作流afaik是为交叉编译创建bash文件和环境。

但是，由于某种原因，(问题1)在 OEToolchainConfig.cmake中没有在sysroots/usr/share/cmake中生成。

以下是我到目前为止所取得的成果：

#To build SDK, use bitbake meta-toolchain or bitbake my-image -c populate_sdk

inherit core-image

# for populate_sdk to create a valid toolchain with qt5
inherit populate_sdk populate_sdk_qt5

##
inherit distro_features_check

DESCRIPTION = "My image."

LICENSE="CLOSED"



image_KERNEL_MODULES = " \
    kernel-modules \
"

#Framebuffer driver for tft
image_DRIVERS = " \
    xf86-video-fbdev \
"

image_DESKTOP_SUPPORT = " \
    packagegroup-core-boot \
    packagegroup-core-x11 \
    packagegroup-lxde-base \
    localedef \
    pointercal \
    xinit \
    xkeyboard-config \
    base-passwd \
    liberation-fonts \
"

image_BASIC_TOOLS = " \
    apt \
    dpkg \
    sudo \
    tzdata \
    dbus \
    packagegroup-core-ssh-openssh \
    xterm \
    networkmanager \
    wpa-supplicant \
"

image_DEV_TOOLS = " \
    git \
    cmake \
    gcc \
    g++ \
    binutils \
    binutils-symlinks \
    coreutils \
    cpp \
    cpp-symlinks \
    diffutils \
    file \
    g++ \
    g++-symlinks \
    gdb \
    gdbserver \
    gcc \
    gcc-symlinks \
    gettext \
    git \
    ldd \
    libgcc \
    libgcc-dev \
    libstdc++ \
    libstdc++-dev \
    libstdc++-staticdev \
    libtool \
    make \
    perl-modules \
    pkgconfig \
    python-modules \
    python3-modules \
    autoconf \
    automake \
    ccache \
    packagegroup-core-buildessential \
    glibc-utils \
"

image_DEV_LIBS = " \
    wiringpi \
"

image_QT_TOOLS = " \
    qtbase \
    qtwebengine \
    qtwebkit \
"

IMAGE_INSTALL_append = " \
    ${image_KERNEL_MODULES} \
    ${image_DRIVERS} \
    ${image_DESKTOP_SUPPORT} \
    ${image_BASIC_TOOLS} \
    ${image_DEV_TOOLS} \
    ${image_DEV_LIBS} \
    ${image_QT_TOOLS} \
 "

#Maybe consider connman instead of networkmanager
#vc-graphics is problematic with userland..


## SDK stuff, to build sdk use bitbake my-image -c populate_sdk
# Add all static packages:  SDKIMAGE_FEATURES += "staticdev-pkgs"
#SDKIMAGE_FEATURES += "staticdev-pkgs"
#SDKIMAGE_FEATURES += "dev-pkgs"

# Dnf issue fix for nativesdk-qt add to local.conf
#PACKAGE_CLASSES = "package_ipk"

# In the target side, add our libs
TOOLCHAIN_TARGET_TASK_append = " wiringpi-dev"

# Needed for cross-compilation / host tasks
TOOLCHAIN_HOST_TASK_append = " nativesdk-packagegroup-qt5-toolchain-host"
#CMake conflicts with the qt packagegroup, cmake is a must, when qt packagegroup is nonexistent
TOOLCHAIN_HOST_TASK_append = " nativesdk-cmake"

REQUIRED_DISTRO_FEATURES = "x11"

IMAGE_LINGUAS ?= " "

LICENSE = "MIT"

export IMAGE_BASENAME = "my-image"


ENABLE_SPI_BUS = "1"
ENABLE_I2C = "1"

do_image_prepend() {

}

这引发了一些问题：(问题2) --我已经看到一些人不使用TOOLCHAIN_HOST_TASK或TOOLCHAIN_TARGET_TASK，还有一些人如何能够将包添加到SDK中。我想知道我是不是做错了什么。(问题3) --我继承了一些基于其他条目的类，但我不确定继承populate_sdk和populate_sdk_qt5会给我带来什么帮助。如果有人能粗略地解释我做错了什么，我能做些什么来更好地处理工作流程，那么这可能是对知识的一个很好的补充。

谢谢你提前提出建议。

Answer 1

试图回答(问题1)：

我对poky-2.5的发现是，对于我的x86_64目标，OEToolchainConfig.cmake放在开发包中(即x86_64包)。

因此，试着：

TOOLCHAIN_HOST_TASK_append = " nativesdk-cmake-dev"

不确定这是否是个bug。