Accessing IP on IA-64 with RTL

[Steve Ellcey]

> From rth@redhat.com  Tue Jan 25 17:51:19 2005
> 
> Because the glibc mcount uses it.

Thanks for the details on the interface.  That will help me get this
to work on Linux as well as HP-UX.

> but neither of these pin a specific ip value.  What does the HP _mcount
> use this for?  What's different about this value than the b0 value that
> it gets from the call instruction?

I don't think there is any difference and HP _mcount could (should?)
just use the b0 value but apparently it doesn't.

Steve Ellcey
sje@cup.hp.com