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To: Andrew Cagney <ac131313@cygnus.com>
cc: gdb-patches@sources.redhat.com, Richard.Earnshaw@arm.com
Reply-To: Richard.Earnshaw@arm.com
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Subject: Re: [patch/rfc] default REGISTER_VIRTUAL_SIZE and 
 REGISTER_RAW_SIZE to register_size
In-reply-to: Your message of "Sun, 05 May 2002 22:28:05 EDT."
             <3CD5EA35.9020104@cygnus.com> 
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Date: Tue, 07 May 2002 03:21:00 -0000
From: Richard Earnshaw <rearnsha@arm.com>
X-SW-Source: 2002-05/txt/msg00145.txt.bz2

> Hello,
> 
> For most architectures.  The relationship:
> 
> 	REGISTER_VIRTUAL_SIZE(N)
> 	== REGISTER_RAW_SIZE(N)
> 	== TYPE_LENGTH(REGISTER_VIRTUAL_TYPE(N)
> 
> (the exception is the @$(*&@(^$*&^!@ MIPS ...).  Given this, the 
> attached patch changes the architecture vector so that it defaults both 
> to the register's type size.

The ARM has REGISTER_VIRTUAL_SIZE(FPA-reg) == 8, but 
REGISTER_RAW_SIZE(FPA-reg) == 12.

But that doesn't necessarily make the change wrong, provided we can 
override the default.

R.