From: Ulrich Drepper <drepper@redhat.com>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: "H . J . Lu" <hjl@lucon.org>, linux-mips@oss.sgi.com
Subject: Re: thread-ready ABIs
Date: 18 Jan 2002 13:44:44 -0800 [thread overview]
Message-ID: <m3zo3b1ghf.fsf@myware.mynet> (raw)
In-Reply-To: <Pine.GSO.3.96.1020118220734.22923S-100000@delta.ds2.pg.gda.pl>
"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> writes:
> Where did you get extraneous registers for the i386
> from (especially given the usual register shortage there)?
%gs
> Maybe we could use the same approach for MIPS.
I doubt it.
> Where to look for the code in glibc in a current snapshot?
%gs is used for a long time linuxthreads/sysdeps/386/useldt.h
> One possible approach is to reserve GOT entries for thread registers.
> While not as fast as CPU's registers, if frequently accessed they would
> stick in the cache. Since the ABI mandates the code to keep a pointer to
> the GOT in the gp register, accesses to got entries need only a single
> instruction. I haven't thought on it much -- someone might have a better
> idea.
How would you have different values for different threads? It would
mean having multiple GOTs which is a resource waste and a nightmare in
resource management.
--
---------------. ,-. 1325 Chesapeake Terrace
Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA
Red Hat `--' drepper at redhat.com `------------------------
next prev parent reply other threads:[~2002-01-18 22:44 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m3elkoa5dw.fsf@myware.mynet>
2002-01-18 18:19 ` thread-ready ABIs H . J . Lu
2002-01-18 18:31 ` Ulrich Drepper
2002-01-18 19:08 ` H . J . Lu
2002-01-18 19:20 ` Ulrich Drepper
2002-01-19 12:14 ` Dominic Sweetman
2002-01-19 12:14 ` Dominic Sweetman
2002-01-20 0:14 ` Ralf Baechle
2002-01-18 20:03 ` Maciej W. Rozycki
2002-01-18 20:20 ` Ulrich Drepper
2002-01-18 20:50 ` Maciej W. Rozycki
2002-01-18 21:02 ` Ulrich Drepper
2002-01-18 21:35 ` Maciej W. Rozycki
2002-01-18 21:44 ` Ulrich Drepper [this message]
2002-01-18 22:17 ` Maciej W. Rozycki
2002-01-18 21:23 ` Daniel Jacobowitz
2002-01-19 0:35 ` Kevin D. Kissell
2002-01-19 0:35 ` Kevin D. Kissell
2002-01-19 4:11 ` H . J . Lu
2002-01-19 12:27 ` Dominic Sweetman
2002-01-19 19:42 ` H . J . Lu
2002-01-21 13:27 ` Maciej W. Rozycki
2002-01-19 22:21 ` Kevin D. Kissell
2002-01-19 22:21 ` Kevin D. Kissell
2002-01-20 10:38 ` Machida Hiroyuki
2002-01-20 11:58 ` Kevin D. Kissell
2002-01-20 11:58 ` Kevin D. Kissell
2002-01-20 13:16 ` Machida Hiroyuki
2002-01-22 6:27 ` patches for test-and-set without ll/sc (Re: thread-ready ABIs) Machida Hiroyuki
2002-01-22 6:37 ` Ulrich Drepper
2002-01-22 6:46 ` Machida Hiroyuki
2002-01-22 6:56 ` Ulrich Drepper
2002-01-24 9:56 ` Andreas Jaeger
2002-01-24 9:56 ` Andreas Jaeger
2002-01-20 19:19 ` thread-ready ABIs H . J . Lu
2002-01-21 9:39 ` Kevin D. Kissell
2002-01-21 9:39 ` Kevin D. Kissell
2002-01-21 13:56 ` Maciej W. Rozycki
2002-01-21 18:24 ` H . J . Lu
2002-01-21 18:36 ` Ulrich Drepper
2002-01-21 18:52 ` H . J . Lu
2002-01-21 18:58 ` H . J . Lu
2002-01-21 18:59 ` Daniel Jacobowitz
2002-01-21 19:05 ` H . J . Lu
2002-01-21 19:09 ` Daniel Jacobowitz
2002-01-21 19:18 ` H . J . Lu
2002-01-21 21:04 ` Kevin D. Kissell
2002-01-21 21:04 ` Kevin D. Kissell
2002-01-21 19:30 ` Geoff Keating
2002-01-21 21:07 ` Ulrich Drepper
2002-01-21 13:43 ` Maciej W. Rozycki
2002-01-20 0:24 ` Ralf Baechle
2002-01-21 23:22 ` Ulrich Drepper
2002-01-21 23:57 ` Kevin D. Kissell
2002-01-21 23:57 ` Kevin D. Kissell
2002-01-22 0:16 ` Ulrich Drepper
2002-01-22 0:16 ` Ulrich Drepper
2002-01-22 9:37 ` Dominic Sweetman
2002-01-22 9:37 ` Dominic Sweetman
2002-01-22 17:41 ` Ulrich Drepper
2002-01-22 17:41 ` Ulrich Drepper
2002-01-22 9:59 ` Dominic Sweetman
2002-01-22 9:59 ` Dominic Sweetman
2002-01-22 12:18 ` Kevin D. Kissell
2002-01-22 12:18 ` Kevin D. Kissell
2002-01-22 15:21 ` Daniel Jacobowitz
2002-01-22 15:44 ` Dominic Sweetman
2002-01-22 21:44 ` Tommy S. Christensen
2002-01-22 21:53 ` Kevin D. Kissell
2002-01-22 21:53 ` Kevin D. Kissell
2002-01-22 23:13 ` Kevin D. Kissell
2002-01-22 23:13 ` Kevin D. Kissell
2002-01-23 1:12 ` Jason Gunthorpe
2002-01-22 16:05 ` Kevin D. Kissell
2002-01-22 16:05 ` Kevin D. Kissell
2002-01-22 16:34 ` Daniel Jacobowitz
2002-01-22 17:08 ` Kevin D. Kissell
2002-01-22 17:08 ` Kevin D. Kissell
2002-01-22 17:13 ` Daniel Jacobowitz
2002-01-22 17:34 ` Kevin D. Kissell
2002-01-22 17:34 ` Kevin D. Kissell
2002-01-22 17:37 ` Daniel Jacobowitz
2002-01-22 17:47 ` Kevin D. Kissell
2002-01-22 17:47 ` Kevin D. Kissell
2002-01-22 17:57 ` Daniel Jacobowitz
2002-01-22 18:18 ` Kevin D. Kissell
2002-01-22 18:18 ` Kevin D. Kissell
2002-01-27 20:24 ` Alan Cox
2002-01-27 20:24 ` Alan Cox
2002-01-28 8:50 ` Kevin D. Kissell
2002-01-28 8:50 ` Kevin D. Kissell
2002-01-22 1:39 ` Richard Henderson
2002-01-18 21:24 Justin Carlson
2002-01-18 21:31 ` Ulrich Drepper
2002-01-18 21:42 ` Maciej W. Rozycki
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