[llvm-dev] [ORC] Access complete Symbol table of JITDylib?

Lang Hames via llvm-dev llvm-dev at lists.llvm.org
Thu Jan 16 18:55:26 PST 2020

Hi Thomas,

I haven’t exposed any way to introspect JITDylib contents yet (except for the debug logging call that you found). All that you can do is issue a lookup for a symbol name and either get a result, or an error saying that no such symbol is present.

This is primarily because JITDylibs are open to mutation from multiple threads: Any snapshot that you take of a JITDylib risks being outdated a moment later. We could add an atomic “whileLockedDo(Action)’ style API, but so far it has not been necessary.

What is your use case?

— Lang.

Sent from my iPad

> On Dec 4, 2019, at 5:52 AM, che pal via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> Greetings.
> I'm quite new to LLVM & ORC, I recently started trying out ORC. It's 
> been fun.
> But there is something that's bugging me, how do you get info on the 
> complete symbol table of a JITDylib, "Symbols" has been marked private, 
> probably for a good reason?
> I already know about JITDylib:dump, but I require to parse the Symbols 
> myself.
> Is there currently a way to access the complete symbol table of JITDylib?
> If not, would it be possible to add such functionality?
> Thomas.
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