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From: Daniel Jacobowitz <drow@false.org>
To: Markus Deuling <deuling@de.ibm.com>
Cc: gdb-patches@sourceware.org,
	Mark Kettenis <mark.kettenis@xs4all.nl>,
		Ulrich Weigand <uweigand@de.ibm.com>
Subject: Re: [rfc] [02/05] Get rid of current_gdbarch in hppa-linux-nat.c
Date: Wed, 07 Nov 2007 15:06:00 -0000	[thread overview]
Message-ID: <20071107150623.GB20821@caradoc.them.org> (raw)
In-Reply-To: <4731D0B9.8000809@de.ibm.com>

On Wed, Nov 07, 2007 at 03:50:33PM +0100, Markus Deuling wrote:
> What this patch does is transform
> 
>  if ((unsigned) regno >= gdbarch_num_regs (current_gdbarch))
>    error (_("Invalid register number %d."), regno);
> 
> 
> into
> 
>  if ((unsigned) regno >= gdbarch_num_regs (gdbarch))
>    error (_("Invalid register number %d."), regno);
> 
> 
> The gdbarch comes from regcache in {fetch,store}_register. Why is that wrong ?

Again, it is not necessary to add a gdbarch parameter here.  Why are
we checking regno?  We're checking it because we're about to use it to
index into the u_offsets array, and we don't want to go out of bounds.
-- 
Daniel Jacobowitz
CodeSourcery


  reply	other threads:[~2007-11-07 15:06 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-07 11:12 Markus Deuling
2007-11-07 11:31 ` Mark Kettenis
2007-11-07 11:51   ` Markus Deuling
2007-11-07 12:58     ` Daniel Jacobowitz
2007-11-07 14:52       ` Markus Deuling
2007-11-07 15:06         ` Daniel Jacobowitz [this message]
2007-11-08 21:31         ` Ulrich Weigand
2007-11-07 13:16     ` Mark Kettenis

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