[pypy-dev] pypy-dev at codespeak.net

[Armin Rigo]

Hi,

On Sun, Aug 19, 2007 at 12:33:09PM +0200, Armin Rigo wrote:
> Then in the directory where the sources were created, compile with the
> extra RPython-level assertions enabled:
> 
>     make CFLAGS="-O2 -DRPY_ASSERT"
>     mv testing_1 /some/path/pypy-c-sandbox

You can now just say  'make llsafer'  instead.  This enables a new flag,
-DRPY_LL_ASSERT, which differs from RPY_ASSERT in some ways explained in
translator/c/src/support.h and which is better suited for this
situation.  I would say that the resulting sandboxed PyPy is quite safe
then - at most, it will abort() itself if you play too strange tricks
with 'exec new.code(...)'.  For paranoia bonus points you can enable
both RPY_ASSERT and RPY_LL_ASSERT.

For what it's worth, the -DRPY_LL_ASSERT inserts tons of checks
everywhere, for an acceptable performance hit (~10%?).


A bientot,

Armin.