From: Andrew Cagney <ac131313@cygnus.com>
To: Kevin Buettner <kevinb@redhat.com>
Cc: Elena Zannoni <ezannoni@cygnus.com>, gdb-patches@sources.redhat.com
Subject: Re: [RFA] ppc-linux-nat.c: Don't use regmap[] anymore.
Date: Tue, 20 Nov 2001 08:47:00 -0000 [thread overview]
Message-ID: <3C06BD1F.2070809@cygnus.com> (raw)
Message-ID: <20011120084700.phlb7Bh69uCOjemhrj68n-w0iUCiotGLakp2KaOv8Bs@z> (raw)
In-Reply-To: <1011129215935.ZM19472@ocotillo.lan>
> On Nov 29, 4:45pm, Andrew Cagney wrote:
>
>
>> I suspect a few more targets could do with the same treatment.
>> Eliminating that hardwired regmap[] would probably help a few more targets.
>
>
> Perhaps. But, I think each target better have good reasons for doing
> so before undertaking such a transformation. Replacing the hardwired
> regmap[] with a function with the same constants hardwired into it
> doesn't accomplish much (aside from slowing things somewhat).
The problem is, they are not constant. Because of limitations in the
way other parts of GDB currently work, an architecture change can cause
those offsets to change :-( Check x86-64 vs i386.
I don't think performance is an issue here.
enjoy,
Andrew
next prev parent reply other threads:[~2001-11-29 22:56 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-12 13:12 Elena Zannoni
2001-11-19 15:56 ` Kevin Buettner
2001-11-19 18:25 ` Andrew Cagney
2001-11-29 13:45 ` Andrew Cagney
2001-11-29 14:01 ` Kevin Buettner
2001-11-19 19:26 ` Kevin Buettner
2001-11-29 14:56 ` Andrew Cagney [this message]
2001-11-20 8:47 ` Andrew Cagney
2001-11-20 11:10 ` Kevin Buettner
2001-11-29 16:01 ` Kevin Buettner
2001-11-29 16:38 ` Andrew Cagney
2001-11-20 16:11 ` Andrew Cagney
2001-11-29 12:59 ` Kevin Buettner
2001-11-29 18:14 ` Elena Zannoni
2001-11-21 3:54 ` Elena Zannoni
2001-11-26 10:13 ` Elena Zannoni
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