topic Re: JNI issue: Problem loading a 64 bit shared library in Operating System - Linux

JNI issue: Problem loading a 64 bit shared library

Giridhar Shankar — Mon, 20 Mar 2006 09:43:14 GMT

Dear All,

I have a Java application that is compiled and running on an HP itanium box. This application (which is a product from HP) has been compiled using Itanium 32-bit JDK binaries (found under JAVA_HOME/bin/IA64N directory).

Also, I have a C++ application which we built a shared library. This application is a 64-bit application specific to IA64 platform.

When I try loading this shared library in my Java application (for JNI communication) where Java app is compiled using 32-bit JDK while the shared library is 64-bit, I get a run-time error saying "UnsatisfiedLinkError".

Can anybody pls advice how do I go about loading 64-bit shared library into a 32-bit Java app?

I don't have a chance of recompiling the Java app using 64-bit JDK (found under $JAVA_HOME/bin/IA64W) since this app is a product and I don't own the source. Same with C++ app since this too is a part of another HP product.

Your inputs are highly appreciated.

Thanks,
Giri

Re: JNI issue: Problem loading a 64 bit shared library

Arunvijai_4 — Mon, 20 Mar 2006 09:47:54 GMT

Hi Giri,

I think, you can't link a 32 bit application with 64 bit shared library. Either you have to port your app into 64 bit or, library to 32 bit.

-Arun

Re: JNI issue: Problem loading a 64 bit shared library

Steve Steel — Mon, 20 Mar 2006 10:20:05 GMT

Hi

Linking 32-bit and 64-bit object files (.o, .sl, .a) together is not supported. All modules in a program must be linked from either 32-bit objects or 64-bit objects.

Steve STeel

Re: JNI issue: Problem loading a 64 bit shared library

Sandman! — Mon, 20 Mar 2006 11:41:15 GMT

Well Giridhar you can't mix modes when compiling your application.

cheers!