Oracle JDK installation on Yocto build

Question

I'm trying to install Oracle JDK on my yocto build as it's needed to build the OpenCV Java API.

This is my configuration file:

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 is correctly set. I'm using morty branch for every layer. For building I simply launch the command:

bitbake core-image-sato

The build end successfully but I end up with the following error on the target machine:

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

But

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

And looking in said directory

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

Do I need to do something more to correctly build the image? Is there anything wrong with my configuration files? Anybody encountered the same error?

Answer 1

I ran into the same problem, and with some generous help given by Fabio Berton from OS Systems , we found out that the problem is related to the fact that /usr/bin/java depends on /lib64/ld-linux-x86-64.so.2 .

You can check that by opening a shell inside the target and doing strings /usr/lib/jvm/java-8-oracle/bin/java .

We also found that /lib/ld-linux-x86-64.so.2 is a symbolic link to /lib/ld-2.26.so .

So all you have to do is to create a oracle-jse-jdk_1.7.0.bbappend like this:

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 
}

Regards, Bernardo.

Answer 2

I couldn't installe Oracle JDK but I managed to install openjdk-8 and succesfully enable the OpenCV Java API.

I made a guide on how to accomplish this.