[LLVMdev] JIT execution engine & shadow stack

[Don Boogert]

Hi,

I've followed the LLVM
tutorial<http://llvm.org/docs/tutorial/LangImpl4.html> to
create an execution environment for my DSL and want to enable the shadow
stack for garbage collection.  On all functions generated by my compiler I
call setGC("shadow-stack").

I end up with IR functions like this:

define float @"main float"(float %x) gc "shadow-stack" {
entry:
......
......
}

When I try to execute a function using
executionEngine->getPointerToFunction(myFunction) it returns the following
error: unsupported GC: shadow-stack

Am I missing some initialisation step? Is there example code of correct
shadow stack usage folk can steer me towards?

Sorry to bother the group with such a trivial questions.
Don
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