Re: [tycho-user] Tycho build for ARM (Raspberry Pi)

[Alexandre Waris <alexandre.waris@xxxxxxxxx>]

Thanks for the answer but it doesn't work.

Using the "java - jar org.eclipse.equinox.launcher....jar [...]  -arch x86" I have the follwoing error :

---------------------------
java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
        /home/pi/Goko/configuration/org.eclipse.osgi/106/0/.cp/libswt-gtk-4527.so: /home/pi/Goko/configuration/org.eclipse.osgi/106/0/.cp/libswt-gtk-4527.so: cannot open shared object file: No such file or directory (Possible cause: can't load IA 32-bit .so on a ARM-bit platform)
        no swt-gtk in java.library.path
        /home/pi/.swt/lib/linux/arm/libswt-gtk-4527.so: /home/pi/.swt/lib/linux/arm/libswt-gtk-4527.so: cannot open shared object file: No such file or directory (Possible cause: can't load IA 32-bit .so on a ARM-bit platform)
        Can't load library: /home/pi/.swt/lib/linux/arm/libswt-gtk.so

        at org.eclipse.swt.internal.Library.loadLibrary(Library.java:327)
        at org.eclipse.swt.internal.Library.loadLibrary(Library.java:236)
        at org.eclipse.swt.internal.C.<clinit>(C.java:16)
        at org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:63)
        at org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:54)
        at org.eclipse.swt.widgets.Display.<clinit>(Display.java:134)
        at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:140)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
---------------------------

So I tried using arm as arch with "java - jar org.eclipse.equinox.launcher....jar [...]  -arch x86". But now I have :
---------------------------

!ENTRY org.eclipse.osgi 4 0 2015-09-29 17:13:58.885
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/swt/widgets/Display
        at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:140)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.widgets.Display cannot be found by org.eclipse.e4.ui.workbench.swt_0.13.0.v20150504-0621
        at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:439)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:352)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:344)
        at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
------------------------

I guess I'll have to use some ARM ready swt library/jar...

What do you think ?

2015-09-29 9:28 GMT+02:00 Sievers, Jan <jan.sievers@xxxxxxx>:

AFAIK the native eclipse launchers are thin wrappers which just start a
JVM with given commandline options.

sth like 'java -jar org.eclipse.equinox.launcher_*.jar <further args>'

check eclipse.ini of an existing eclipse installation for the arguments
(or the eclipse log)

you could create a shell script that does the same thing and add it as PDE
root file to your installation [1,2]

Regards
Jan

[1]
http://help.eclipse.org/mars/index.jsp?topic=%2Forg.eclipse.pde.doc.user%2F
tasks%2Fpde_rootfiles.htm
[2] https://wiki.eclipse.org/Tycho/Demo_Projects/RCP_Application

On 28/09/15 22:30, "tycho-user-bounces@xxxxxxxxxxx on behalf of Alexandre
Waris" <tycho-user-bounces@xxxxxxxxxxx on behalf of
alexandre.waris@xxxxxxxxx> wrote:

>Hello,
>
>
>I already have a tycho build setup for multiple platform (Win 32 & 64,
>Linux 32 & 64) but I'd like to provide a version for Raspberry PI
>(running Raspbian).
>
>The Pi uses a ARM processor and trying to run the Linux launcher on it,
>gives the following error :
>
>
>"Cannot execute binary file"
>
>
>Running a "file Goko" command gives the following :
>
>"Goko: ELF 32-bit LSB executable, Intel 80386, version1 (SYSV),
>dynamically linked (uses shared libs), for GNU/Linux 2.2.5, not stripped"
>
>
>I had no chance to test it on a regular Intel Linux but I assume it would
>at least execute the launcher.
>
>
>Any idea how to add it to Tycho build ?
>
>Could the native launcher be replaced with some command line call ?
>
>
>I tried and follow
>https://resheim.net/2013/05/running-eclipse-rcp-applications-on.html
><https://resheim.net/2013/05/running-eclipse-rcp-applications-on.html>,
>but had no success.I'm not even sure what's the target architecture name
>(arm, arm6l, .... ?)
>
>
>
>Thanks,
>
>Alex,
>
>
>
>
>
>
>
>
>
>
>
>

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