From: cgd@broadcom.com
To: "H . J . Lu" <hjl@lucon.org>
Cc: ica2_ts@csv.ica.uni-stuttgart.de, binutils@sources.redhat.com
Subject: Re: [PATCH] Fix distinction of 32/64bit addresses in MIPS gas
Date: Mon, 03 Sep 2001 23:07:00 -0000 [thread overview]
Message-ID: <yov51ylnbia1.fsf@highland.sibyte.com> (raw)
In-Reply-To: <20010831143107.A4532@lucon.org>
"H . J . Lu" <hjl@lucon.org> writes:
> > yes, i know that the pointer is going to be constrainted to being a
> > sign-extended 32-bit value, but neither the compiler or any assembly
> > code that uses it needs to know that (or should). As far as they're
> > concerned, pointers are 64-bit values and they're loaded with ld, etc.
>
> Why do you need R_MIPS_64 for that?
Don't really know that that specific reloc is necessary... but that
_is_ what the tools seem to generate, no?
However no matter how you cut it, you still need a reloc that "32 bit
address, plus 32 bits of sign extension."
> What is the 32bit address of `foo'?
bit 31 may or may not be set, depending on what exactly you're
compiling.
(I've personally used that type of construction for both things that
live at the boot address, and things which live down in (k)useg, and
we contanute to use that on a daily basis.)
cgd
next prev parent reply other threads:[~2001-09-03 23:07 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-24 18:26 Thiemo Seufer
2001-08-31 8:02 ` Richard Sandiford
2001-08-31 8:28 ` H . J . Lu
2001-08-31 9:17 ` Thiemo Seufer
2001-08-31 9:53 ` Geoff Keating
2001-08-31 10:31 ` Thiemo Seufer
[not found] ` <mailpost.999279120.2469@postal.sibyte.com>
2001-08-31 10:37 ` cgd
2001-08-31 11:46 ` Thiemo Seufer
2001-08-31 11:49 ` Ian Lance Taylor
2001-08-31 11:50 ` Ian Lance Taylor
[not found] ` <mailpost.999283589.5294@postal.sibyte.com>
2001-08-31 12:41 ` cgd
2001-08-31 14:31 ` H . J . Lu
2001-09-03 23:07 ` cgd [this message]
2001-09-06 10:50 ` H . J . Lu
2001-09-06 10:59 ` cgd
2001-09-06 11:07 ` H . J . Lu
2001-09-06 11:35 ` Thiemo Seufer
2001-09-06 11:39 ` cgd
2001-09-06 11:40 ` cgd
2001-09-08 12:03 ` Andrew Cagney
2001-09-08 16:38 ` Thiemo Seufer
2001-09-08 16:56 ` Thiemo Seufer
2001-09-06 11:57 ` Richard Sandiford
2001-09-06 20:53 ` Thiemo Seufer
2001-09-06 21:09 ` Thiemo Seufer
2001-09-06 21:12 ` Thiemo Seufer
2001-09-06 22:38 ` H . J . Lu
2001-09-06 23:11 ` Thiemo Seufer
2001-09-07 4:10 ` Richard Sandiford
2001-09-07 6:22 ` Thiemo Seufer
2001-09-07 7:02 ` Richard Sandiford
2001-09-07 8:11 ` Thiemo Seufer
2001-09-07 9:20 ` Richard Sandiford
2001-09-07 9:49 ` Thiemo Seufer
2001-09-06 11:14 ` Thiemo Seufer
2001-09-06 11:08 ` Thiemo Seufer
2001-08-31 18:22 ` Thiemo Seufer
2001-09-03 2:57 ` Richard Sandiford
2001-09-03 15:00 ` Thiemo Seufer
2001-08-31 14:49 ` Andrew Cagney
2001-08-31 15:00 ` H . J . Lu
2001-08-31 16:30 ` Eric Christopher
2001-08-31 16:41 ` Andrew Cagney
2001-08-31 16:46 ` H . J . Lu
2001-08-31 17:45 ` matthew green
2001-09-02 19:25 ` J Grant
2001-08-31 16:44 ` H . J . Lu
2001-08-31 17:42 ` matthew green
2001-08-31 19:06 ` H . J . Lu
2001-08-31 19:11 ` matthew green
[not found] ` <mailpost.999310274.17560@postal.sibyte.com>
2001-09-03 23:18 ` cgd
2001-09-06 11:00 ` H . J . Lu
2001-09-06 11:38 ` cgd
2001-09-06 12:09 ` H . J . Lu
2001-08-31 18:49 ` Thiemo Seufer
2001-08-31 17:35 ` matthew green
2001-08-31 19:05 ` H . J . Lu
2001-08-31 18:25 ` Thiemo Seufer
2001-08-31 20:46 ` Ian Lance Taylor
2001-08-31 21:04 ` Thiemo Seufer
2001-08-31 10:04 ` Richard Sandiford
2001-08-31 10:41 ` Thiemo Seufer
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=yov51ylnbia1.fsf@highland.sibyte.com \
--to=cgd@broadcom.com \
--cc=binutils@sources.redhat.com \
--cc=hjl@lucon.org \
--cc=ica2_ts@csv.ica.uni-stuttgart.de \
/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;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).