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From: Ulrich Drepper <drepper@redhat.com>
To: "Kevin D. Kissell" <kevink@mips.com>
Cc: "Ralf Baechle" <ralf@oss.sgi.com>, "Mike Uhler" <uhler@mips.com>,
	<linux-mips@oss.sgi.com>, "H . J . Lu" <hjl@lucon.org>
Subject: Re: thread-ready ABIs
Date: 21 Jan 2002 16:16:09 -0800	[thread overview]
Message-ID: <m3zo37s0ja.fsf@myware.mynet> (raw)
In-Reply-To: <01be01c1a2d7$6ec299c0$0deca8c0@Ulysses>

"Kevin D. Kissell" <kevink@mips.com> writes:

> As MIPS "owns" the ABI, whether or not the thread register
> becomes a part of it is not something that anyone outside
> of MIPS can simply decree.

Well, MIPS might define the "official" ABI but nobody is forced to use
it and if nobody uses it it's nor worth anything.

> I'd very much appreciate it if someone would explain to me just what
> this register is used for, and why a register needs to be permantly
> allocated for this purpose.

Simply look at the ABIs for some less-backward processors.  Read the
thread-local storage section in the IA-64 ABI specification.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------

WARNING: multiple messages have this Message-ID (diff)
From: Ulrich Drepper <drepper@redhat.com>
To: "Kevin D. Kissell" <kevink@mips.com>
Cc: Ralf Baechle <ralf@oss.sgi.com>, Mike Uhler <uhler@mips.com>,
	linux-mips@oss.sgi.com, "H . J . Lu" <hjl@lucon.org>
Subject: Re: thread-ready ABIs
Date: 21 Jan 2002 16:16:09 -0800	[thread overview]
Message-ID: <m3zo37s0ja.fsf@myware.mynet> (raw)
Message-ID: <20020122001609.lJL8810VGpSqbR_zokojLBIjoFv7RaJ_ifspfAvqyO0@z> (raw)
In-Reply-To: <01be01c1a2d7$6ec299c0$0deca8c0@Ulysses>

"Kevin D. Kissell" <kevink@mips.com> writes:

> As MIPS "owns" the ABI, whether or not the thread register
> becomes a part of it is not something that anyone outside
> of MIPS can simply decree.

Well, MIPS might define the "official" ABI but nobody is forced to use
it and if nobody uses it it's nor worth anything.

> I'd very much appreciate it if someone would explain to me just what
> this register is used for, and why a register needs to be permantly
> allocated for this purpose.

Simply look at the ABIs for some less-backward processors.  Read the
thread-local storage section in the IA-64 ABI specification.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------

  parent reply	other threads:[~2002-01-22  1:16 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
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 [this message]
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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