[pypy-dev] Compiling PyPy interpreter without GC

[Maciej Fijalkowski]

Hi John.

Can you describe the microVM and it's capabilities? Chances are it
captures things at the wrong level (I have a longer response in mind,
but I'll wait for you to describe it, in case I'm plain wrong)

What do you mean by "provides a GC"? Does it mean you just call malloc
and you never have to call free?

Generally speaking we don't suggest you translate pypy as a first
step, but instead write tests (equivalent to what's in
translator/c/test) and check aspects of translation one bit at a time.
That said, dependency on rweakref even when disabled is a bug, can you
post a full traceback?

Cheers,
fijal





On Wed, Mar 18, 2015 at 2:01 AM, John Zhang <u5157779 at uds.anu.edu.au> wrote:
> Hi all,
>     I'm working on developing a MicroVM backend for PyPy. It's a virtual
> machine under active research and development by my colleagues in ANU. It
> aims to capture GC, threading and JIT in the virtual machine, and frees up
> the burden of the language implementers.
>
>     Since MicroVM provides GC, I need to remove GC from the PyPy
> interpreter. As I was trying to compile it with the following command:
>     pypy $PYPY/rpython/bin/rpython \
>           -O0 \
>           --gc=none \
>           --no-translation-rweakref \
>           --annotate \
>           --rtype \
>           --translation-backendopt-none \
>           $PYPY/pypy/goal/targetpypystandalone.py
>     It gives off an error during annotation stage, saying that it's not able
> to find a module called '_rweakref'.
>     Does anyone know what the problem might be, and how one might go and
> solve it?
>
>     Appreciate greatly,
>     John Zhang
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