[LLVMdev] Output to a DLL
ofv at wanadoo.es
Thu Jun 11 08:39:00 PDT 2009
"Nicolas Capens" <nicolas at capens.net> writes:
> I'd like to be able to write JIT-compiled code to a Windows DLL. I have no
> idea where to start though. Does LLVM already offer some support for
Nope. Don't hold your breadth waiting for it. It is far from trivial to
I don't know your requirements, but mine is to avoid compilation every
time the hosting application starts.
I was thinking on:
1. Compile and spit bitecode from the JIT the first time, load it on
subsequent sessions. Seems doable. Doesn't work if your goal is
using code on non-LLVM-aware applications, but if you want to do this
the JIT is of no use anyways.
2. Act as a traditional compiler and generate a shared library via
llvmc + assembler + linker. Tricky, even more so on Windows. Resolving
symbols is not as easy as is on case 1.
> Or would it be straightforward to write my own DLL writer (no advanced
> features needed)? Or maybe I could use an external linker? All help highly
If you end hacking a DLL writer, please contribute it to LLVM :-)
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