From: Ulrich Weigand <uweigand@de.ibm.com>
To: jimb@redhat.com (Jim Blandy)
Cc: gdb-patches@sourceware.org
Subject: Re: RFA: general prologue analysis framework
Date: Thu, 13 Oct 2005 13:50:00 -0000 [thread overview]
Message-ID: <200510131349.j9DDnm4F002393@53v30g15.boeblingen.de.ibm.com> (raw)
In-Reply-To: <vt27jcis1yo.fsf@theseus.home.> from "Jim Blandy" at Oct 12, 2005 05:19:27 PM
Jim Blandy wrote:
> pv_is_array_ref is strictly a utility function; there's nothing in
> there you couldn't do with the existing primitives. It was used in
> the original s390 analyzer, but nothing uses it now. S390 frames have
> (had?) distinct areas set up for saving gprs and fprs, and they're
> always full-sized. I used pv_is_array_ref to recognize stores to
> those areas. The 'pv_area' functions are new; I think they'd handle
> the problem better.
I've removed the pv_is_array_ref code from the s390 analyzer, because
recent GCC (optionally) no longer uses fixed-size register save areas
in order to reduce the amount of wasted stack space.
The analyser now assumes the top-most stack slot holding an incoming
(call-saved) register value is in fact the save area for that register.
I don't need any 'area' functions at all any more ...
Bye,
Ulrich
--
Dr. Ulrich Weigand
Linux on zSeries Development
Ulrich.Weigand@de.ibm.com
next prev parent reply other threads:[~2005-10-13 13:50 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-07 20:39 Jim Blandy
2005-10-07 21:25 ` Nathan J. Williams
2005-10-07 21:30 ` Daniel Jacobowitz
2005-10-07 21:41 ` Nathan J. Williams
2005-10-08 7:02 ` Jim Blandy
2005-10-08 7:01 ` Jim Blandy
2005-10-08 16:00 ` Daniel Jacobowitz
2005-10-09 20:27 ` Daniel Jacobowitz
2005-10-13 0:20 ` Jim Blandy
2005-10-13 1:04 ` Daniel Jacobowitz
2005-10-13 13:50 ` Ulrich Weigand [this message]
2005-10-13 17:17 ` Jim Blandy
2005-10-13 17:48 ` Ulrich Weigand
2005-10-13 18:03 ` Daniel Jacobowitz
2005-10-14 18:13 ` Jim Blandy
2005-10-17 18:52 ` Ulrich Weigand
2005-10-17 20:28 ` Jim Blandy
2005-11-23 2:56 ` Ulrich Weigand
2005-10-15 12:12 ` Eli Zaretskii
2005-10-17 20:32 ` Jim Blandy
2005-10-19 8:55 ` Eli Zaretskii
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