From: Andrew Cagney <ac131313@cygnus.com>
To: Nick Duffek <nsd@redhat.com>
Cc: gdb@sources.redhat.com, cagney@redhat.com, dje@transmeta.com,
taylor@cygnus.com, kevinb@cygnus.com, msnyder@cygnus.com,
jimb@cygnus.com, per@bothner.com, eliz@delorie.com
Subject: Re: Harvard proposal
Date: Tue, 13 Feb 2001 13:22:00 -0000 [thread overview]
Message-ID: <3A899B67.4A37902E@cygnus.com> (raw)
In-Reply-To: <200102102025.f1AKPtS11061@rtl.cygnus.com>
Nick Duffek wrote:
> The Problem
> ===========
>
> GDB handles Harvard architectures by mapping instruction and data spaces
> onto a single byte address space.
>
> For example, d10v-tdep.c performs the following mapping:
> data: 0x2000000 + addr
> insn: 0x1000000 + (addr << 2)
>
> The mapping is user-visible, which I think is problematic because:
Just FYI, while the mapping is user visible it is also very entrenched.
BFD, which doesn't handle segmentation either, uses that ``cannonical''
address form in its linker scripts and relocations.
Andrew
next prev parent reply other threads:[~2001-02-13 13:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-10 12:19 Nick Duffek
2001-02-10 13:27 ` Per Bothner
2001-02-10 17:11 ` Nick Duffek
2001-02-23 17:25 ` Andrew Cagney
2001-02-23 20:27 ` Per Bothner
2001-02-26 8:34 ` Andrew Cagney
2001-02-26 8:49 ` Per Bothner
2001-02-26 10:13 ` Andrew Cagney
2001-02-13 13:22 ` Andrew Cagney [this message]
2001-02-13 13:35 ` Nick Duffek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3A899B67.4A37902E@cygnus.com \
--to=ac131313@cygnus.com \
--cc=cagney@redhat.com \
--cc=dje@transmeta.com \
--cc=eliz@delorie.com \
--cc=gdb@sources.redhat.com \
--cc=jimb@cygnus.com \
--cc=kevinb@cygnus.com \
--cc=msnyder@cygnus.com \
--cc=nsd@redhat.com \
--cc=per@bothner.com \
--cc=taylor@cygnus.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox