Yocto上的Oracle JDK安裝

Question

我想在我的yocto版本上安裝Oracle JDK，因爲它需要構建OpenCV Java API。

這是我的配置文件：

MACHINE ??= "intel-corei7-64" 

DISTRO ?= "poky" 

PACKAGE_CLASSES ?= "package_deb" 

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" 

# Modify the following line accoring to your Host Machine setup 
# Example: CPU with 6 core 12 threads use the following configuration. 
BB_NUMBER_THREADS = '12' 
PARALLEL_MAKE = '-j 12' 

# Java installation 
IMAGE_INSTALL_append += " gtkperf libxslt oracle-jse-jre " 
LICENSE_FLAGS_WHITELIST += "oracle_java" 
PREFERRED_VERSION_xserver-nodm-init = "1.0" 


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

bblayers.conf設置正確。我爲每一層都使用了morty分支。 建築我只需啓動命令：

bitbake core-image-sato

成功構建結束，但我最終的目標計算機上出現以下錯誤：

root@intel-corei7-64:~# java -version 
-sh: /usr/bin/java: No such file or directory 

但

root@intel-corei7-64:/usr/bin# ls -l | grep java 
lrwxrwxrwx 1 root root  31 Apr 1 11:40 java -> /usr/share/jre1.8.0_91/bin/java 

並在目錄中查找

root@intel-corei7-64:/usr/share/jre1.8.0_91/bin# ls -l 
total 388 
lrwxrwxrwx 1 root root  8 Apr 1 11:40 ControlPanel -> jcontrol 
-rwxr-xr-x 1 1001 1001 5080 Apr 1 09:14 java 
-rwxr-xr-x 1 1001 1001 103920 Apr 1 09:14 javaws 
-rwxr-xr-x 1 1001 1001 6264 Apr 1 2016 jcontrol 
-rwxr-xr-x 1 1001 1001 5208 Apr 1 09:14 jjs 
-rwxr-xr-x 1 1001 1001 5208 Apr 1 09:14 keytool 
-rwxr-xr-x 1 1001 1001 5416 Apr 1 09:14 orbd 
-rwxr-xr-x 1 1001 1001 5224 Apr 1 09:14 pack200 
-rwxr-xr-x 1 1001 1001 5264 Apr 1 09:14 policytool 
-rwxr-xr-x 1 1001 1001 5208 Apr 1 09:14 rmid 
-rwxr-xr-x 1 1001 1001 5216 Apr 1 09:14 rmiregistry 
-rwxr-xr-x 1 1001 1001 5232 Apr 1 09:14 servertool 
-rwxr-xr-x 1 1001 1001 5448 Apr 1 09:14 tnameserv 
-rwxr-xr-x 1 1001 1001 200400 Apr 1 09:14 unpack200 

我是否需要做更多的事才能正確構建圖像？我的配置文件有什麼問題嗎？有人遇到同樣的錯誤？

Answer 1

我遇到了同樣的問題，並與O.S. Systems由Fabio Berton給予一定的鼎力相助，我們發現，這個問題是關係到該/usr/bin/java取決於/lib64/ld-linux-x86-64.so.2的事實。

您可以通過在目標內打開一個shell並執行strings /usr/lib/jvm/java-8-oracle/bin/java來檢查。

我們還發現/lib/ld-linux-x86-64.so.2是/lib/ld-2.26.so的符號鏈接。

因此，所有你需要做的就是創建一個oracle-jse-jdk_1.7.0.bbappend這樣的：

FILES_${PN} += "/lib64/ld-linux-x86-64.so.2" 

do_install_append() { 
    install -d ${D}/lib64 
    cd ${D}/lib64 
    ln -s ../lib/ld-2.26.so ld-linux-x86-64.so.2 
} 

問候， 貝爾納。

Answer 2

我無法安裝Oracle JDK，但我設法安裝了openjdk-8併成功啓用了OpenCV Java API。

I made a guide關於如何完成此操作。