使用 YoctoProject集成Qt6

Posted 2023-03-12 toradexsh

By Toradex胡珊逢

在嵌入式领域中Qt 作为普遍选择的 UI 方案目前已经发布 Qt6 版本。本文将介绍如何为 Toradex 的计算机模块使用 Yocto Project 将 Qt6 集成到镜像里。

首先根据这里的说明，准备好Yocto Project 的编译环境。这里我们选择 Toradex 最新的 Linux BSP V6 为例，其基于 kirkstone 分支，这也是一个 LTS 版本。

进入layers 目录，使用下面命令下载 Qt6.4.3 版本的 meta-qt6 文件。

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git clone -b 6.4.3 git://code.qt.io/yocto/meta-qt6.git

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在meta-qt6/classes/ 目录下创建 populate_sdk_qt6.bbclass 文件。

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SUMMARY = "Meta package for building an installable Qt6 toolchain and SDK"

inherit populate_sdk populate_sdk_qt6_base

TOOLCHAIN_HOST_TASK:append = " nativesdk-packagegroup-qt6-toolchain-host"

TOOLCHAIN_TARGET_TASK:append = " packagegroup-qt6-modules"

FEATURE_PACKAGES_qtcreator-debug = "packagegroup-qt6-qtcreator-debug"

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在meta-qt6/recipes-qt/packagegroups/ 目录下创建 packagegroup-qt6-qtcreator-debug.bb 文件。

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SUMMARY = "Remote debugging tools for QtCreator integration"

LICENSE = "MIT"

inherit packagegroup

# Override by distro if needed

VIRTUAL-RUNTIME_qtcreator-debug-ssh-daemon ?= "openssh-sshd"

RDEPENDS:$PN = " \\

gdbserver \\

$VIRTUAL-RUNTIME_qtcreator-debug-ssh-daemon \\

openssh-sftp-server \\

qtdeclarative \\

"

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在meta-toradex-demos/recipes-images/images/ 目录下创建 packagegroup-tdx-qt6.bb 文件。

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SUMMARY = "Packagegroup which provides most QT6 libraries and a QT6 demo"

PACKAGE_ARCH = "$MACHINE_ARCH"

inherit packagegroup

PROVIDES = "$PACKAGES"

PACKAGES += " \\

$PN-fonts \\

$PN-libs \\

"

RRECOMMENDS:$PN = " \\

$PN-fonts \\

$PN-libs \\

"

SUMMARY:$PN-fonts = "Some fonts useful for QT5"

RRECOMMENDS:$PN-fonts = " \\

ttf-dejavu-common \\

ttf-dejavu-sans \\

ttf-dejavu-sans-mono \\

ttf-dejavu-serif \\

"

SUMMARY:$PN-libs = "QT5 libraries"

RRECOMMENDS:$PN-libs = " \\

qt3d \\

qtbase \\

qtcharts \\

qtcoap \\

qtconnectivity \\

qtdatavis3d \\

qtdeclarative \\

qtimageformats \\

qtlottie \\

qtmqtt \\

qtmultimedia \\

qtnetworkauth \\

qtopcua \\

qtquick3d \\

qtquicktimeline \\

qtremoteobjects \\

qtscxml \\

qtsensors \\

qtserialbus \\

qtserialport \\

qtsvg \\

qttools \\

qttranslations \\

qtvirtualkeyboard \\

$@bb.utils.contains('DISTRO_FEATURES', 'wayland', 'qtwayland', '', d) \\

qtwebchannel \\

qtwebsockets \\

"

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在meta-toradex-demos/recipes-images/images/ 目录下创建 tdx-reference-multimedia-qt6-image.bb 文件。

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require tdx-reference-minimal-image.bb

SUMMARY = "Toradex Embedded Linux Reference Multimedia Image"

DESCRIPTION = "Image for BSP verification with QT and multimedia features"

inherit populate_sdk_qt6

#Prefix to the resulting deployable tarball name

export IMAGE_BASENAME = "Reference-Multimedia-Image"

IMAGE_FEATURES += " \\

$@bb.utils.contains('DISTRO_FEATURES', 'wayland', 'weston', \\

bb.utils.contains('DISTRO_FEATURES', 'x11', 'x11-base', '', d), d) \\

"

IMAGE_INSTALL += " \\

packagegroup-tdx-cli \\

packagegroup-tdx-graphical \\

packagegroup-tdx-qt6 \\

packagegroup-fsl-isp \\

\\

bash \\

coreutils \\

less \\

makedevs \\

mime-support \\

net-tools \\

util-linux \\

v4l-utils \\

\\

gpicview \\

media-files \\

"

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在build/conf/bblayers.conf 将 meta-qt6 添加进来，并移除原来的 meta-qt5。

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# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf

# changes incompatibly

LCONF_VERSION = "7"

BBPATH = "$TOPDIR"

BBFILES ?= ""

BBLAYERS ?= " \\

$TOPDIR/../layers/meta-toradex-nxp \\

$TOPDIR/../layers/meta-freescale \\

$TOPDIR/../layers/meta-freescale-3rdparty \\

\\

$TOPDIR/../layers/meta-toradex-bsp-common \\

\\

$TOPDIR/../layers/meta-openembedded/meta-oe \\

$TOPDIR/../layers/meta-openembedded/meta-filesystems \\

$TOPDIR/../layers/meta-openembedded/meta-gnome \\

$TOPDIR/../layers/meta-openembedded/meta-xfce \\

$TOPDIR/../layers/meta-openembedded/meta-networking \\

$TOPDIR/../layers/meta-openembedded/meta-multimedia \\

$TOPDIR/../layers/meta-openembedded/meta-python \\

$TOPDIR/../layers/meta-freescale-distro \\

$TOPDIR/../layers/meta-toradex-demos \\

$TOPDIR/../layers/meta-qt5 \\

\\

\\

$TOPDIR/../layers/meta-toradex-distro \\

$TOPDIR/../layers/meta-yocto/meta-poky \\

$TOPDIR/../layers/openembedded-core/meta \\

"

#$TOPDIR/../layers/meta-qt5

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build/conf/local.conf 添加下面两个配比，移除 X11 和 directfb 相关配置。

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DISTRO_FEATURES:remove = " directfb x11"

IMAGE_INSTALL:remove = " gpicview"

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最后使用bitbake 命令即可编译包含 Qt6 的镜像和 SDK。