[llvm-dev] LLJIT: Help: how to add a archive?

[Stefan Gränitz via llvm-dev]

Also, you might want to try it with lli first:

> lli -jit-kind=orc -extra-archive=legacy_stdio_definitions.lib
HelloWorld.ll

In case it doesn't work, adding --debug-only=orc can provide a lot of
debug output, that can be useful for a first glimpse what's going on.

Cheers

On 22/03/2021 09:52, Geoff Levner via llvm-dev wrote:
> Hi Francis,
>
> You can use the StaticLibraryDefinitionGenerator class to expose
> symbols from a static library (archive). You create an instance using
> its static Load() method, then add the instance to the LLJIT by
> calling JITDylib::addGenerator(). I haven't tried this on Windows, though.
>
> Geoff
>
> On Mon, Mar 22, 2021 at 8:37 AM Francis ANDRE via llvm-dev
> <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>
>     Hello everyone
>
>     Unless I misunderstood the class LLJIT, there is no function to
>     add a archive (.lib on Windows or .a on Linux) to the instance of
>     LLJIT, but one can only add an object  or a IR module. I am trying
>     to JIT the code below and need this Windows library:
>     legacy_stdio_definitions.lib
>
>     HelloWorld.c
>     extern int printf(char*, ...);
>     int main() {
>        printf("Hello World!\n");
>        return 0;
>     }
>
>     What did I miss?
>
>     Rdgs
>
>     FA
>
>
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