Re: [rvm-research] Return barriers

On 2/13/2014 2:57 PM, Hari Krishnan wrote:

> 1. I want to know how to activate the return barriers and let the mutators know that a activation
> record is about to be popped from the stack.

Return barriers are a comparatively new addition, so I am afraid I personally
can't help you about them -- but I'm sure someone else can!

> 2. How can I find if an object is pointed by stack root at the time of assignment?

You can't.  Such assignments can get optimized in various ways that place the
item into registers, etc.  You have to get by with occasional scanning of
frames or similar measures.

Perhaps if you told us more about the particular kind of collector and your
goals we could be of more assistance.  There's a lot of knowledge here, but
to tap into it you often have tell us the bigger picture.

Regards -- Eliot Moss

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