llvm dev - Mar 2009 - [LLVMdev] LLVM JIT + Boehm's GC, Need I Worry?

The virtual machine I'm implementing allocates objects on the heap using
Boehm's garbage collector. I currently have an interpreter working for my
language, and I'm working on a JIT that will compile some of the functions
that would otherwise get interpreted.

What I'm wondering is whether or not I need to perform special adjustments
for the GC to work properly. My understanding is that the Boehm GC can scan
the stack for roots. Functions compiled from LLVM into machine code should
just be normal functions on the stack when they are called... And thus, I
don't think I need to change anything, Boehm's GC should be able to find
roots in those functions when they are on the stack just as well as any
C/C++ function.

Am I mistaken about this?
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Nyx wrote:
> The virtual machine I'm implementing allocates objects on the heap
using
> Boehm's garbage collector. I currently have an interpreter working for
my
> language, and I'm working on a JIT that will compile some of the
functions
> that would otherwise get interpreted.
>
> What I'm wondering is whether or not I need to perform special
adjustments
> for the GC to work properly. My understanding is that the Boehm GC can scan
> the stack for roots. Functions compiled from LLVM into machine code should
> just be normal functions on the stack when they are called... And thus, I
> don't think I need to change anything, Boehm's GC should be able to
find
> roots in those functions when they are on the stack just as well as any
> C/C++ function.
>
> Am I mistaken about this?
>   
No mistakes here :) You don't need to do anything with the Boehm GC. 
VMKit uses it without doing anything.


Nicolas