The cost of stack traces

Wed May 10 18:32:00 GMT 2006

Anthony Green wrote:
> On Wed, 2006年05月10日 at 18:01 -0400, Andrew Haley wrote:
>>>Yes. All we have to do is keep a table that maps IP address -> filename.
>>> To be more explicit, one idea would be to walk the stack backwards until
> we find something "familiar" (using some heuristic for determining what
> is familiar or not), and then simply using memcmp on the rest of the
> stack, to see if it's what we think it is.
>
This "familiar" stuff would necessarily contain an IP->source_line 
mapping. So APH's idea to just maintain an IP->source_line map might be 
simpler to implement with no additional memory required.
David Daney,