[LLVMdev] Requesting Feedback on my LLVM How-To

Justin Holewinski justin.holewinski at gmail.com
Thu Jan 10 14:33:19 PST 2013

On Thu, Jan 10, 2013 at 5:28 PM, Rick Mann <rmann at latencyzero.com> wrote:

> On Jan 10, 2013, at 14:21 , Justin Holewinski <justin.holewinski at gmail.com>
> wrote:
> > That's a very nice start!  Do you plan on sandboxing the execution?  It
> seems like just blindly executing the compiled code could easily crash the
> application if you have bad IR.  I know that's a bit more advanced, but it
> would be nice to have some documentation on ways to sandbox the execution
> for this kind of scenario.
> Thanks! I worried about what might happen in the case of bad or rogue
> code. Are you referring to OS X's sandboxing capabilities, or something
> LLVM supports? I agree blindly executing code is possibly a bad idea,
> although the intent is that someone creates a DSL, and so the DSL's code
> generator would constrain what could really be done. That is, the DSL would
> not allow the user to arbitrarily execute hosting code, but rather the
> DSL's runtime could call hosting code. Does that make sense?

You can get as advanced as you want.  I was mainly referring to something
simple like running the generated code in a separate process so a seg fault
won't bring down the entire application.

> --
> Rick



Justin Holewinski
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