[LLVMdev] Accounting for stack space

Sandro Magi naasking at gmail.com
Wed Jun 20 17:32:34 PDT 2007


To this end, are there any implicit allocations being done by
generated LLVM code, other than the system stack?

Sandro

On 6/18/07, Sandro Magi <naasking at gmail.com> wrote:
> Given my recent posts, I think it's obvious that I'm trying to figure
> out how to build a resource-aware VM for a high-level language.
>
> I've figured out adequate solutions for most of the problems I've
> encountered, including separate heaps, quotas, etc. However, I'm not
> sure how I can account for a thread's stack space. Given a language
> process (LP) running in a heap with a quota, a thread in that LP can
> exceed the LP's quota simply by recursing infinitely since stack space
> allocation is outside of my VM's control.
>
> So how can I account for the stack space consumed by the thread
> running in that LP, or control the allocation of stack space? One
> solution is to CPS-transform the program, so that all activation
> frames are explicitly allocated from the LP's heap. Is there another
> way?
>
> Sandro
>



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