• local.conf” styled variables (e.g. ${Qt_UTILS},${WEB_SERVER_UTILS}…) to make it easy to structure


    #################################################################################################################
    # An example of local.conf modified by George Calin george.calin@gmail.com , on 1st of December 2020
    # This local.conf supports Qt libraries and various other utilities (GStreamer, etc)
    # The local.conf is tested and runs on Yocto 3.1 dunfell, and most likely with all versions until Yocto 2.6 Thud
    # Pre Thud (Yocto 2.6) compatibility of each package and the local.conf structure has to be verified
    ##################################################################################################################
    # You need to select a specific machine to target the build with. There are a selection
    # of emulated machines available which can boot and run in the QEMU emulator:
    #
    #MACHINE ?= "qemuarm"
    #MACHINE ?= "qemuarm64"
    #MACHINE ?= "qemumips"
    #MACHINE ?= "qemumips64"
    #MACHINE ?= "qemuppc"
    #MACHINE ?= "qemux86"
    #MACHINE ?= "qemux86-64"
    #
    # There are also the following hardware board target machines included for
    # demonstration purposes:
    #
    MACHINE ?= "beaglebone-yocto"
    #MACHINE ?= "genericx86"
    #MACHINE ?= "genericx86-64"
    #MACHINE ?= "mpc8315e-rdb"
    #MACHINE ?= "edgerouter"
    #
    # This sets the default machine to be qemux86 if no other machine is selected:
    #MACHINE ??= "qemux86"

    #
    # Where to place downloads
    #
    # During a first build the system will download many different source code tarballs
    # from various upstream projects. This can take a while, particularly if your network
    # connection is slow. These are all stored in DL_DIR. When wiping and rebuilding you
    # can preserve this directory to speed up this part of subsequent builds. This directory
    # is safe to share between multiple builds on the same machine too.
    #
    # The default is a downloads directory under TOPDIR which is the build directory.
    #
    #DL_DIR ?= "${TOPDIR}/downloads"

    #
    # Where to place shared-state files
    #
    # BitBake has the capability to accelerate builds based on previously built output.
    # This is done using "shared state" files which can be thought of as cache objects
    # and this option determines where those files are placed.
    #
    # You can wipe out TMPDIR leaving this directory intact and the build would regenerate
    # from these files if no changes were made to the configuration. If changes were made
    # to the configuration, only shared state files where the state was still valid would
    # be used (done using checksums).
    #
    # The default is a sstate-cache directory under TOPDIR.
    #
    #SSTATE_DIR ?= "${TOPDIR}/sstate-cache"

    #
    # Where to place the build output
    #
    # This option specifies where the bulk of the building work should be done and
    # where BitBake should place its temporary files and output. Keep in mind that
    # this includes the extraction and compilation of many applications and the toolchain
    # which can use Gigabytes of hard disk space.
    #
    # The default is a tmp directory under TOPDIR.
    #
    #TMPDIR = "${TOPDIR}/tmp"

    #
    # Default policy config
    #
    # The distribution setting controls which policy settings are used as defaults.
    # The default value is fine for general Yocto project use, at least initially.
    # Ultimately when creating custom policy, people will likely end up subclassing
    # these defaults.
    #
    DISTRO ?= "poky"
    # As an example of a subclass there is a "bleeding" edge policy configuration
    # where many versions are set to the absolute latest code from the upstream
    # source control systems. This is just mentioned here as an example, its not
    # useful to most new users.
    # DISTRO ?= "poky-bleeding"

    #
    # Package Management configuration
    #
    # This variable lists which packaging formats to enable. Multiple package backends
    # can be enabled at once and the first item listed in the variable will be used
    # to generate the root filesystems.
    # Options are:
    # - 'package_deb' for debian style deb files
    # - 'package_ipk' for ipk files are used by opkg (a debian style embedded package manager)
    # - 'package_rpm' for rpm style packages
    # E.g.: PACKAGE_CLASSES ?= "package_rpm package_deb package_ipk"
    # We default to rpm:
    PACKAGE_CLASSES ?= "package_rpm"

    #
    # SDK target architecture
    #
    # This variable specifies the architecture to build SDK items for and means
    # you can build the SDK packages for architectures other than the machine you are
    # running the build on (i.e. building i686 packages on an x86_64 host).
    # Supported values are i686 and x86_64
    #SDKMACHINE ?= "i686"

    # #####################################################################################
    # Add SDK for Qt 5
    # #####################################################################################
    #INHERIT += "populate_sdk_qt5"


    #
    # Extra image configuration defaults
    #
    # The EXTRA_IMAGE_FEATURES variable allows extra packages to be added to the generated
    # images. Some of these options are added to certain image types automatically. The
    # variable can contain the following options:
    # "dbg-pkgs" - add -dbg packages for all installed packages
    # (adds symbol information for debugging/profiling)
    # "dev-pkgs" - add -dev packages for all installed packages
    # (useful if you want to develop against libs in the image)
    # "ptest-pkgs" - add -ptest packages for all ptest-enabled packages
    # (useful if you want to run the package test suites)
    # "tools-sdk" - add development tools (gcc, make, pkgconfig etc.)
    # "tools-debug" - add debugging tools (gdb, strace)
    # "eclipse-debug" - add Eclipse remote debugging support
    # "tools-profile" - add profiling tools (oprofile, lttng, valgrind)
    # "tools-testapps" - add useful testing tools (ts_print, aplay, arecord etc.)
    # "debug-tweaks" - make an image suitable for development
    # e.g. ssh root access has a blank password
    # There are other application targets that can be used here too, see
    # meta/classes/image.bbclass and meta/classes/core-image.bbclass for more details.
    # We default to enabling the debugging tweaks.
    IMAGE_FEATURES +="eclipse-debug tools-sdk dev-pkgs debug-tweaks"
    EXTRA_IMAGE_FEATURES +="ssh-server-openssh"

    IMAGE_INSTALL_append = "
    cronie
    nano
    vim
    bash
    i2c-tools
    rsync
    ${WEB_SERVER_UTILS}
    ${PHP_UTILS}
    ${Qt_UTILS}
    ${TOUCHSCREEN_UTILS}
    ${VIDEO_TOOLS}
    "

    WEB_SERVER_UTILS = "
    lighttpd
    lighttpd-module-fastcgi
    "

    PHP_UTILS = "
    php
    php-cli
    "

    TOUCHSCREEN_UTILS = "
    tslib-conf
    tslib-tests
    tslib-calibrate
    tslib
    "

    Qt_UTILS= "
    qtbase
    qtbase-tools
    qtdeclarative
    qtserialport
    qtcharts
    qtcharts-dev
    liberation-fonts
    qtquickcontrols
    qtquickcontrols2
    qtquickcontrols-qmlplugins
    qtgraphicaleffects-qmlplugins
    qtdeclarative-qmlplugins
    "

    VIDEO_TOOLS = "
    gstreamer1.0
    gstreamer1.0-plugins-good
    gstreamer1.0-plugins-base
    gstreamer1.0-plugins-ugly
    gstreamer1.0-libav
    gst-player
    gstreamer1.0-meta-base
    gst-examples
    gstreamer1.0-rtsp-server
    vlc
    "
    #this is required so that vlc is added to the image
    LICENSE_FLAGS_WHITELIST="commercial"

    #this is required so that gstreamer1.0-plugins-ugly can be added to the image
    LICENSE_FLAGS_WHITELIST_append = " commercial_gstreamer1.0-plugins-ugly commercial_mpg123"

    PACKAGECONFIG_FONTS_append_pn-qtbase = " fontconfig"
    PACKAGECONFIG_DISTRO_pn-qtbase ="linuxfb"
    PACKAGECONFIG_append = " gif"

    #
    # Additional image features
    #
    # The following is a list of additional classes to use when building images which
    # enable extra features. Some available options which can be included in this variable
    # are:
    # - 'buildstats' collect build statistics
    # - 'image-mklibs' to reduce shared library files size for an image
    # - 'image-prelink' in order to prelink the filesystem image
    # NOTE: if listing mklibs & prelink both, then make sure mklibs is before prelink
    # NOTE: mklibs also needs to be explicitly enabled for a given image, see local.conf.extended
    USER_CLASSES ?= "buildstats image-mklibs image-prelink"

    #
    # Runtime testing of images
    #
    # The build system can test booting virtual machine images under qemu (an emulator)
    # after any root filesystems are created and run tests against those images. It can also
    # run tests against any SDK that are built. To enable this uncomment these lines.
    # See classes/test{image,sdk}.bbclass for further details.
    #IMAGE_CLASSES += "testimage testsdk"
    #TESTIMAGE_AUTO_qemuall = "1"

    #
    # Interactive shell configuration
    #
    # Under certain circumstances the system may need input from you and to do this it
    # can launch an interactive shell. It needs to do this since the build is
    # multithreaded and needs to be able to handle the case where more than one parallel
    # process may require the user's attention. The default is iterate over the available
    # terminal types to find one that works.
    #
    # Examples of the occasions this may happen are when resolving patches which cannot
    # be applied, to use the devshell or the kernel menuconfig
    #
    # Supported values are auto, gnome, xfce, rxvt, screen, konsole (KDE 3.x only), none
    # Note: currently, Konsole support only works for KDE 3.x due to the way
    # newer Konsole versions behave
    #OE_TERMINAL = "auto"
    # By default disable interactive patch resolution (tasks will just fail instead):
    PATCHRESOLVE = "noop"

    #
    # Disk Space Monitoring during the build
    #
    # Monitor the disk space during the build. If there is less that 1GB of space or less
    # than 100K inodes in any key build location (TMPDIR, DL_DIR, SSTATE_DIR), gracefully
    # shutdown the build. If there is less that 100MB or 1K inodes, perform a hard abort
    # of the build. The reason for this is that running completely out of space can corrupt
    # files and damages the build in ways which may not be easily recoverable.
    # It's necesary to monitor /tmp, if there is no space left the build will fail
    # with very exotic errors.
    BB_DISKMON_DIRS ??= "
    STOPTASKS,${TMPDIR},1G,100K
    STOPTASKS,${DL_DIR},1G,100K
    STOPTASKS,${SSTATE_DIR},1G,100K
    STOPTASKS,/tmp,100M,100K
    ABORT,${TMPDIR},100M,1K
    ABORT,${DL_DIR},100M,1K
    ABORT,${SSTATE_DIR},100M,1K
    ABORT,/tmp,10M,1K"

    #
    # Shared-state files from other locations
    #
    # As mentioned above, shared state files are prebuilt cache data objects which can
    # used to accelerate build time. This variable can be used to configure the system
    # to search other mirror locations for these objects before it builds the data itself.
    #
    # This can be a filesystem directory, or a remote url such as http or ftp. These
    # would contain the sstate-cache results from previous builds (possibly from other
    # machines). This variable works like fetcher MIRRORS/PREMIRRORS and points to the
    # cache locations to check for the shared objects.
    # NOTE: if the mirror uses the same structure as SSTATE_DIR, you need to add PATH
    # at the end as shown in the examples below. This will be substituted with the
    # correct path within the directory structure.
    #SSTATE_MIRRORS ?= "
    #file://.* http://someserver.tld/share/sstate/PATH;downloadfilename=PATH
    #file://.* file:///some/local/dir/sstate/PATH"

    #
    # Yocto Project SState Mirror
    #
    # The Yocto Project has prebuilt artefacts available for its releases, you can enable
    # use of these by uncommenting the following line. This will mean the build uses
    # the network to check for artefacts at the start of builds, which does slow it down
    # equally, it will also speed up the builds by not having to build things if they are
    # present in the cache. It assumes you can download something faster than you can build it
    # which will depend on your network.
    #
    #SSTATE_MIRRORS ?= "file://.* http://sstate.yoctoproject.org/2.5/PATH;downloadfilename=PATH"

    #
    # Qemu configuration
    #
    # By default qemu will build with a builtin VNC server where graphical output can be
    # seen. The two lines below enable the SDL backend too. By default libsdl2-native will
    # be built, if you want to use your host's libSDL instead of the minimal libsdl built
    # by libsdl2-native then uncomment the ASSUME_PROVIDED line below.
    #PACKAGECONFIG_append_pn-qemu-native = " sdl"
    #PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"
    #ASSUME_PROVIDED += "libsdl2-native"

    # CONF_VERSION is increased each time build/conf/ changes incompatibly and is used to
    # track the version of this file when it was generated. This can safely be ignored if
    # this doesn't mean anything to you.
    CONF_VERSION = "1"

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  • 原文地址:https://www.cnblogs.com/fire909090/p/14577559.html
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