[LLVMdev] how to runtime link to shared library symbols in the JIT?

[Yaron Keren]

On Windows DLLs loaded
with llvm::sys::DynamicLibrary::LoadLibraryPermanently() are available to
the JIT and MCJIT. I guess this should work with other OS.

Yaron



2013/10/6 edA-qa mort-ora-y <eda-qa at disemia.com>

> I would like to load shared libraries at runtime for use in some JIT'd
> code. I can't find much about how the JIT resolves symbols, so can
> somebody answer a few questions for me?
>
> 1. Will the symbols from a dlopen'd library with RTLD_GLOBAL be
> available? In this case I can manually dlopen the libraries prior to the
> JIT run.
>
> 2. Can I derive from ExecutionEngine and override the
> getPointerToNamedFunction method? If so, does this just return the C/ABI
> pointer to the function? What is the equivalent for data variables?
>
> 3. Is the same basic model available on Windows using DLLs? I really
> don't have any experience there yet.
>
>
>
> --
> edA-qa mort-ora-y
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