Re: RFA: general prologue analysis framework

Ulrich Weigand
2005-10-13T17:48:28Z

Jim Blandy wrote:

> It looks like your data->gpr_slot[i] array effectively serves the same
> purpose as an area. If we had generic code to scan an area and
> populate a trad_frame_cache, areas might save you code.

Possibly, yes. I'm not sure I completely understand the pv_area code
yet -- it appears to be all based on the notion of a fixed base register;
how to you handle the situation where the base (and/or offset) used to
access the area change in the middle of the prologue? Maybe it would
be better to always base the area on the CFA ...

Bye,
Ulrich

--
Dr. Ulrich Weigand
Linux on zSeries Development
Ulrich.Weigand@de.ibm.com