[llvm-dev] JIT client - late cross references

[Gaier, Bjoern via llvm-dev]

Still no answer to this? Besides from adding Lang?
Was I at least able to explain good enough what my problem is?


From: David Blaikie <dblaikie at gmail.com>
Sent: Montag, 13. August 2018 17:45
To: Gaier, Bjoern <Bjoern.Gaier at horiba.com>; Lang Hames <lhames at gmail.com>
Cc: llvm-dev <llvm-dev at lists.llvm.org>
Subject: Re: [llvm-dev] JIT client - late cross references

+Lang
On Mon, Aug 6, 2018 at 4:20 AM Gaier, Bjoern via llvm-dev <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote:
Hello everyone,

I'm still a beginner with the LLVM and the process of jitting a BC file at runtime as a JIT client - but I'm really interested into this subject.

In my current use case I have two BC files which have cross references to each other, normally I could just add them both to the llvm::ExecutionEngine and they will be resolved.
But I would like to resolve these cross references by myself, through the llvm::JITSymbolResolver but I see no way for this, since both files references each other.

If I jit A, it will reach the undefined function from file B. So at this point I would have to jit B, but B references a function from A, which isn't completely resolved yet.
Is there a way to get the addresses of the functions before the jit process is completed? Maybe via the section addresses and some kind of offset or so?

Thank you for any response!

Kind greetings
Björn
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