[zeromq-dev] Android UnsatisfiedLinkError

Will Heger will.heger at gmail.com
Tue Aug 21 17:25:57 CEST 2012

Thank you for the fast response Victor.   I saw something similar to this
in an ffmpeg ndk linking problem, so yes, I will fiddle with it and report
back my findings.

I'm in over my head with ndk, so if I'm unsuccessful I'll probably try to
switch to the all Java (jeromq) version that was just posted and report how
that goes for anyone who might want to skip the shared object.

Best regards,

On Tue, Aug 21, 2012 at 11:09 AM, Victor Perron <victor at iso3103.net> wrote:

> Dear Will,
> I recall having had some issues with unresolved C++ symbols. The issue is
> that depending on the Android OS version, it may be embedded different
> versions of the libstdc++ also. I thought that using my method (
> --enable-static --disable-shared configure line ) did actually statically
> import those symbols into the final binary; since you're one of the first
> to report this since a long time.
> I can't test that on Android 2.3.5 unfortunately, but both versions have
> been tested on AOSP 4.0+ and 2.3.7 without much issues.
> I've seen kind of a fix for the same issue, could you try it ?
> Here is the link :
> http://stackoverflow.com/questions/6224163/android-ndk-r5b-external-build-and-supc-link-problem
> If that doesn't solve the issue, I'll take a look, but that could take
> some time since I'm quite busy atm.
> Best regards,
> On Tue, Aug 21, 2012 at 4:37 PM, Will Heger <will.heger at gmail.com> wrote:
>> When deploying to both a Motorola Photon (2.3.5) and Galaxy Player 4.0
>> (also 2.3.5 android) I get an error like this in my zmq.jar/libjzmq.so
>> linked project.
>> Caused by: java.lang.UnsatisfiedLinkError: Cannot load library:
>> reloc_library[1312]: 80 cannot locate '__cxa_begin_catch'...
>> Full trace is here:
>> http://pastebin.com/0ZXY1hwE
>> The jar and so were built by following these instructions:
>> http://www.zeromq.org/build:android#toc2 (3.x)
>> I noticed no problems during make.
>> They are included in the project this way:
>> ./libs/armeabi
>> ./libs/armeabi/libjzmq.so
>> ./libs/zmq.jar
>> The jar was compiled with Sun/Oracle Java 6 (something I had wrong the
>> first time with 1.7) on a Debian machine via Eclipse.  Moving the
>> libjzmq.so somewhere wrong (or into a jni folder with an Android.mk file)
>> threw the same exception but with a "can't locate file" value, so I believe
>> the app is finding the .so file correctly in the above pastebin'd error.
>> Thanks in advance, any help is greatly very appreciated.
>> Best regards,
>> -Will
>> _______________________________________________
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>> zeromq-dev at lists.zeromq.org
>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
> --
> Victor
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