[LLVMdev] LLVM JIT: How to install a callback for a function loaded in at runtime

[Nicolas Geoffray]

Hi Carter,

Carter Cheng wrote:
> Hello,
>
> This is probably a bit of a beginner's question but I am new to LLVM
> I have been examining the possibility of constructing something similar to the JnJVM for a language which supports dynamic class loading. The problem I am having is determining how the JIT system allows for dynamic loading of functions into the JIT. The paper indicates the JnJVM use some sort of callback when the JIT hits a call it cannot yet resolve. How do I install such a handler?
>
>   

You need to implement your own ModuleProvider and specialize the 
materialzeFunction function to do the dynamic loading.  In vmkit, you 
can take a look at lib/JnJVM/VMCore/JnjvmModuleProvider.cpp file.

Nicolas

> Thanks in advance,
>
> Carter. 
>
>
>       
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