在 Yocto 构建上安装 libc6-i386

Question

我正在尝试在我的 Yocto 构建中添加 Java 安装。我想在我的嵌入式系统上运行我开发的 Java 应用程序，但我无法正确安装 Java。 当我尝试运行 java 时，我得到以下信息：

./java: No such file or directory

我搜索了一个解决方案，发现我需要安装 libc6 32 位版本。 我继续修改我的 local.conf 文件如下：

MACHINE ??= "intel-corei7-64"

require conf/multilib.conf
MULTILIBS = "multilib:lib32"
DEFAULTTUNE_virtclass-multilib-lib32 = "x86"

DISTRO ?= "poky"
PACKAGE_CLASSES ?= "package_rpm"
SDKMACHINE ?= "x86_64"
EXTRA_IMAGE_FEATURES ?= "debug-tweaks"
USER_CLASSES ?= "buildstats image-mklibs image-prelink"
PATCHRESOLVE = "noop"
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"

PACKAGECONFIG_append_pn-qemu-native = " sdl"
PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"

CONF_VERSION = "1"

CORE_IMAGE_EXTRA_INSTALL = " lib32-glibc"

CORE_IMAGE_EXTRA_INSTALL += "opencv opencv-samples libopencv-core-dev libopencv-highgui-dev libopencv-imgproc-dev libopencv-objdetect-dev libopencv-ml-dev"

但我得到这个错误：

Build Configuration:
BB_VERSION        = "1.32.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "universal-4.8"
TARGET_SYS        = "x86_64-poky-linux"
MACHINE           = "intel-corei7-64"
DISTRO            = "poky"
DISTRO_VERSION    = "2.2.1"
TUNE_FEATURES     = "m64 corei7"
TARGET_FPU        = ""
meta              
meta-poky         
meta-yocto-bsp    = "morty:924e576b8930fd2268d85f0b151e5f68a3c2afce"
meta-intel        = "morty:6add41510412ca196efb3e4f949d403a8b6f35d7"
meta-oe           = "morty:fe5c83312de11e80b85680ef237f8acb04b4b26e"
meta-intel-realsense = "morty:2c0dfe9690d2871214fba9c1c32980a5eb89a421"

Initialising tasks: 100% |#####################################################################################################################################################################################################| Time: 0:00:22
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
ERROR: rmc-1.0-r0 do_package: QA Issue: rmc: Files/directories were installed but not shipped in any package:
  /usr/lib
  /usr/lib/librmclefi.a
  /usr/lib/librsmpefi.a
Please set FILES such that these items are packaged. Alternatively if they are unneeded, avoid installing them or delete them within do_install.
rmc: 3 installed and not shipped files. [installed-vs-shipped]
ERROR: rmc-1.0-r0 do_package: Fatal QA errors found, failing task.
ERROR: rmc-1.0-r0 do_package: Function failed: do_package
ERROR: Logfile of failure stored in: /home/dalben/WorkingBuild/poky/filec/tmp/work/corei7-64-poky-linux/rmc/1.0-r0/temp/log.do_package.16424
ERROR: Task (/home/dalben/WorkingBuild/poky/meta-intel/common/recipes-bsp/rmc/rmc.bb:do_package) failed with exit code '1'
NOTE: Tasks Summary: Attempted 2954 tasks of which 2937 didn't need to be rerun and 1 failed.

Summary: 1 task failed:
  /home/dalben/WorkingBuild/poky/meta-intel/common/recipes-bsp/rmc/rmc.bb:do_package
Summary: There were 3 ERROR messages shown, returning a non-zero exit code.

感谢任何帮助。

编辑：更新问题here。

Answer 1

请注意，您需要做很多工作才能将 Java 放入您的映像中。

您当前的映像没有安装任何与 java 相关的程序，因为在您的编译过程中我没有看到 meta-java。

CORE_IMAGE_EXTRA_INSTALL 仅限于OE Core images；因此，如果您有自己的图像配方，则该变量将不起作用，除非您继承 core-image.bbclass

这是一个将“openjdk-7-jre”放入图像的示例：http://wiki.hioproject.org/index.php?title=OpenHAB:_WeMo_Switch

关键元素是：meta-java、meta-oracle-java 。 您需要将它们添加到您的conf/bblayers.conf

BBLAYERS = " \
 ${BSPDIR}/sources/meta-java \
 ${BSPDIR}/sources/meta-oracle-java \
"

在conf/local.conf中，添加这一行来安装openjdk-7-jre。

IMAGE_INSTALL_append = " openjdk-7-jre "

要添加更多您需要的内容，请查看https://layers.openembedded.org/layerindex/branch/master/layers/