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From: "Ulrich Weigand" <uweigand@de.ibm.com>
To: yao@codesourcery.com (Yao Qi)
Cc: gdb-patches@sourceware.org
Subject: Re: [patch 2/2] Implement gdbarch hook user_register_name on ARM
Date: Thu, 23 Dec 2010 01:54:00 -0000	[thread overview]
Message-ID: <201012222202.oBMM22Lg020960@d06av02.portsmouth.uk.ibm.com> (raw)
In-Reply-To: <4D12288E.6030109@codesourcery.com> from "Yao Qi" at Dec 23, 2010 12:34:22 AM

Yao Qi wrote:

> Good catch! set_gdbarch_deprecated_fp_regnum is called in
> arm_gdbarch_init since 2003, introduced by this patch "Deprecate
> TARGET_READ_FP, read_fp and FP_REGNUM"
> http://sourceware.org/ml/gdb-patches/2003-04/msg00471.html
> 
> set_gdbarch_deprecated_fp_regnum is no longer used in most of targets,
> and I don't see any reason why we have to keep it in ARM, so I draft
> this one-line patch.

Huh, I didn't even see this, I was refering to this line:
  { "fp", 11 },
in arm_register_aliases.  As long as this line is there, changes to
set_gdbarch_deprecated_fp_regnum probably don't matter as this isn't
even evaluated, since "fp" is just treated as a user register instead
of a standard register.

But you're right that you need to remove the set_gdbarch_deprecated_fp_regnum
*also* in order to get the full default logic I had described.

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com


  parent reply	other threads:[~2010-12-22 22:02 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-15 10:22 [patch 1/2] New gdbarch hook user_register_name Yao Qi
2010-12-15 10:48 ` [patch 2/2] Implement gdbarch hook user_register_name on ARM Yao Qi
2010-12-21 19:07   ` Ulrich Weigand
2010-12-22 17:44     ` Yao Qi
2010-12-22 18:12       ` Mark Kettenis
2010-12-23  7:19         ` Yao Qi
2010-12-23  1:54       ` Ulrich Weigand [this message]
2010-12-23  4:10         ` Yao Qi
2010-12-23 18:37           ` Ulrich Weigand
2010-12-24  5:16             ` Yao Qi
2010-12-28 14:52               ` Ulrich Weigand
2010-12-22 17:54   ` Richard Earnshaw
2010-12-23  2:05     ` Ulrich Weigand
2010-12-23  3:37       ` Joel Brobecker
2010-12-23 12:08         ` Mark Kettenis

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