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From: "H. Peter Anvin" <hpa@zytor.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: jt@hpl.hp.com,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	David Howells <dhowells@redhat.com>,
	Jeff Garzik <jgarzik@pobox.com>, Mariusz Mazur <mmazur@kernel.pl>
Subject: Re: [RFC] Splitting kernel headers and deprecating __KERNEL__
Date: Tue, 30 Nov 2004 06:51:49 +0000	[thread overview]
Message-ID: <41AC1885.1040301@zytor.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0411292019500.22796@ppc970.osdl.org>

Linus Torvalds wrote:
> 
> On Mon, 29 Nov 2004, Jean Tourrilhes wrote:
> 
>>	So, which kernel ABI should be present on my system in
>>/usr/include/linux and /usr/include/asm ? Should I use the ABI from
>>2.6.X, 2.4.X or 2.2.X ?
> 
> 
> I have always felt (pretty strongly) that the /usr/include/xxx contents 
> should not be kernel-dependent, but be linked to your glibc version. 
> That's why the symlink from /usr/include/xxx to /usr/src/linux/include/
> has been deprecated for the last, oh about ten years now..
> 
> Yes, there are some _very_ specific things which might care about system 
> calls or ioctl's that have been added later, but let's face it, we don't 
> actually do that very often. The kernel may change at a rapid pace, but 
> user interfaces don't, and user interfaces that would bypass the C library 
> change even less frequently.
> 

More to the point, though, is that they should be supersets of each 
other, which means you should be able to upgrade them to the latest version.

Most of the ABI changes, after all, are new structures needed for 
various things.

	-hpa


  reply	other threads:[~2004-11-30  6:54 UTC|newest]

Thread overview: 184+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-30  1:43 [RFC] Splitting kernel headers and deprecating __KERNEL__ Jean Tourrilhes
2004-11-30  4:22 ` Linus Torvalds
2004-11-30  6:51   ` H. Peter Anvin [this message]
     [not found] <34Xo6-2P0-19@gated-at.bofh.it>
     [not found] ` <35i9f-2vZ-25@gated-at.bofh.it>
     [not found]   ` <35iLS-2Uo-1@gated-at.bofh.it>
     [not found]     ` <35kb6-46Q-25@gated-at.bofh.it>
2004-11-28  0:55       ` ak
2004-11-28 13:32         ` Arnd Bergmann
  -- strict thread matches above, loose matches on Subject: below --
2004-11-27 19:43 Dan Kegel
2004-11-27 21:06 ` Sam Ravnborg
2004-11-25 15:13 David Howells
2004-11-25 15:23 ` David Woodhouse
2004-11-25 16:54 ` Matthew Wilcox
2004-11-25 18:17   ` David Woodhouse
2004-11-27  3:24     ` Greg KH
2004-11-28 23:37       ` Paul Mackerras
2004-11-29  1:28         ` Linus Torvalds
2004-11-29  4:36           ` Jeff Garzik
2004-11-29  4:57             ` Al Viro
2004-11-29  5:27               ` Tim Hockin
2004-11-29  7:51             ` Arjan van de Ven
2004-12-05  0:49             ` Rob Landley
2004-12-05  2:26               ` Andries Brouwer
2004-12-05 13:19                 ` David Greaves
2004-12-05 15:57                   ` Andries Brouwer
2004-12-05 23:05                     ` Rob Landley
2004-12-06  9:56                       ` Andries Brouwer
2004-11-29  9:42           ` David Woodhouse
2004-11-30  8:08             ` Alex Riesen
2004-11-30  8:57               ` Alex Riesen
2004-12-01 11:46             ` Ralf Baechle
2004-12-02  1:21               ` H. Peter Anvin
2004-11-29  9:53           ` Paul Mackerras
2004-11-29  9:57             ` Arjan van de Ven
2004-11-29 10:01               ` David Woodhouse
2004-11-29 11:41           ` Mariusz Mazur
2004-11-29 17:09           ` Alexandre Oliva
2004-11-29 17:41             ` Linus Torvalds
2004-11-29 22:44               ` Al Viro
2004-12-01 11:36                 ` Roman Zippel
     [not found]               ` <oract0thnj.fsf@livre.redhat.lsd.ic.unicamp.br>
2004-11-29 23:00                 ` Linus Torvalds
2004-11-30  0:45                   ` H. Peter Anvin
2004-11-30  5:31                   ` Herbert Poetzl
2004-11-30  6:44                   ` bert hubert
2004-11-30 21:22                   ` Alexandre Oliva
2004-11-30 22:22                     ` Linus Torvalds
2004-11-30 22:57                       ` Alexandre Oliva
2004-11-30 23:12                         ` Linus Torvalds
2004-12-01 19:41                           ` Alexandre Oliva
2004-12-01 19:54                             ` Matthew Wilcox
2004-12-02  3:58                             ` Linus Torvalds
2004-12-02  4:28                               ` Bernd Eckenfels
2004-12-02  5:11                                 ` Peter Williams
2004-12-02 11:30                                   ` Tomas Carnecky
2004-12-02 22:17                                     ` Peter Williams
2004-12-02  9:29                               ` Pekka Enberg
2004-12-02 15:35                                 ` Linus Torvalds
2004-12-02 21:46                                   ` Pekka Enberg
2004-11-30 15:35               ` David Woodhouse
2004-11-30 15:58                 ` Linus Torvalds
2004-11-30 16:28                   ` David Woodhouse
2004-11-30 16:53                     ` Linus Torvalds
2004-11-30 17:52                       ` David Woodhouse
2004-11-30 18:21                         ` Linus Torvalds
2004-11-30 20:28                           ` Mariusz Mazur
2004-11-30 20:47                             ` Linus Torvalds
2004-11-30 22:33                               ` Sam Ravnborg
2004-11-30 22:44                                 ` Mariusz Mazur
2004-11-30 23:03                                   ` Al Viro
2004-11-30 23:08                                     ` Mariusz Mazur
2004-12-01  5:23                                       ` Sam Ravnborg
2004-12-01 10:52                                         ` Mariusz Mazur
2004-12-01 18:08                                           ` Sam Ravnborg
2004-11-30 23:13                                     ` Alexandre Oliva
2004-11-30 23:36                                     ` Chris Friesen
2004-12-01  5:50                               ` H. Peter Anvin
2004-11-30 22:48                           ` Matt Mackall
2004-11-30 22:51                             ` Christoph Hellwig
2004-11-30 23:09                               ` Chris Friesen
2004-11-30 23:35                                 ` Matt Mackall
2004-12-01  0:23                                 ` Miquel van Smoorenburg
2004-11-30 22:55                             ` Linus Torvalds
2004-11-30 23:29                               ` Matt Mackall
2004-12-03  1:03                                 ` Krzysztof Halasa
2004-11-30 23:51                               ` David Woodhouse
2004-11-30 17:55                       ` Al Viro
2004-11-30 16:33                 ` David Howells
2004-11-30 16:57                   ` Linus Torvalds
2004-11-30 15:33             ` David Howells
2004-11-30 15:51               ` Linus Torvalds
2004-11-30 20:47                 ` Alexandre Oliva
2004-11-30 20:56                   ` Linus Torvalds
2004-11-30 21:30                     ` Alexandre Oliva
2004-11-30 21:39                       ` Alexandre Oliva
2004-11-30 23:33                         ` Matthew Wilcox
2004-11-30 22:25                       ` Linus Torvalds
2004-11-30 22:34                         ` David Woodhouse
2004-11-30 22:51                           ` Linus Torvalds
2004-11-30 23:50                             ` David Woodhouse
2004-12-01  0:10                               ` Linus Torvalds
2004-12-01  0:18                                 ` Linus Torvalds
2004-12-01  8:10                                   ` Arjan van de Ven
2004-12-01  0:24                                 ` David Woodhouse
2004-12-01  0:37                                   ` Linus Torvalds
2004-12-01  0:47                                     ` David Woodhouse
2004-12-01  0:57                                       ` Linus Torvalds
2004-12-01  1:06                                         ` David Woodhouse
2004-12-01  1:23                                           ` Linus Torvalds
2004-12-01  6:48                                           ` BAIN
2004-11-30 22:52                         ` Mariusz Mazur
2004-11-30 23:05                           ` Linus Torvalds
2004-11-30 23:05                         ` Alexandre Oliva
2004-11-30 16:18               ` David Howells
2004-12-14  5:51           ` Werner Almesberger
2004-12-14 15:49             ` Linus Torvalds
2004-12-14 16:50               ` Werner Almesberger
2004-12-14 17:58                 ` Linus Torvalds
2004-12-14 21:46                   ` Werner Almesberger
2004-12-14 21:58                     ` Linus Torvalds
2004-12-14 23:49                     ` Krzysztof Halasa
2004-12-15  0:09                       ` Werner Almesberger
2004-12-16  0:58                         ` Krzysztof Halasa
2004-12-14 19:23                 ` Horst von Brand
2004-12-14 19:45                   ` Sam Ravnborg
2004-12-14 19:58                     ` Linus Torvalds
2004-12-14 20:25                       ` Andreas Schwab
2004-12-14 20:33                         ` Linus Torvalds
2004-12-14 16:55               ` Andreas Schwab
2004-12-14 17:59                 ` Linus Torvalds
2004-11-27 20:39   ` Sam Ravnborg
2004-11-25 18:20 ` Alexandre Oliva
2004-11-25 21:01   ` Matthew Wilcox
2004-11-25 22:35     ` David Woodhouse
2004-11-26 11:42       ` Alexandre Oliva
2004-11-27  0:13       ` Andreas Steinmetz
2004-11-27  0:26         ` David Woodhouse
2004-11-27  0:30           ` Andreas Steinmetz
2004-11-27  0:38             ` David Woodhouse
2004-11-26 11:47     ` Alexandre Oliva
2004-11-26 11:53       ` David Woodhouse
2004-11-27 16:12       ` Krzysztof Halasa
2004-11-26 11:58   ` David Howells
2004-11-26 12:00     ` David Woodhouse
2004-11-26 14:19       ` Matthew Wilcox
2004-11-26 14:33         ` David Woodhouse
2004-11-27 12:10           ` Alexander Stohr
2004-11-27  3:46         ` Adam Heath
2004-11-30 12:18         ` Horst von Brand
2004-11-29 16:34     ` Alexandre Oliva
2004-11-25 18:45 ` Matthew Wilcox
2004-11-26 11:52 ` David Howells
2004-11-26 23:56 ` Grzegorz Kulewski
2004-11-27  1:27   ` Tomas Carnecky
2004-11-27  1:41     ` Grzegorz Kulewski
2004-11-27  2:03       ` Tomas Carnecky
2004-11-27  3:07 ` Kyle Moffett
2004-11-27  4:29 ` Tonnerre
2004-11-27  3:51   ` Matthew Wilcox
2004-11-27 16:47     ` Randy.Dunlap
2004-11-27 17:16       ` David Woodhouse
2004-11-27 22:53         ` Arnd Bergmann
2004-11-27 23:12           ` David Woodhouse
2004-11-27 23:27           ` Randy.Dunlap
2004-11-27 23:32             ` David Woodhouse
2004-11-27 23:56               ` Arnd Bergmann
2004-11-28  7:13           ` Arjan van de Ven
2004-11-28 12:03             ` Arnd Bergmann
2004-11-28 12:19               ` Arjan van de Ven
2004-11-28 16:34                 ` Kevin Puetz
2004-11-28 12:28               ` Wichert Akkerman
2004-11-28 12:44                 ` Arjan van de Ven
2004-11-28 16:21             ` Jakub Jelinek
2004-11-28  7:20           ` Christoph Hellwig
2004-11-27  4:05   ` Chris Friesen
2004-11-27  4:30   ` Tomas Carnecky
2004-11-27 21:03 ` Sam Ravnborg
2004-11-27 21:11   ` Andreas Steinmetz
2004-11-27 21:19     ` Sam Ravnborg
2004-11-27 21:49       ` Andreas Steinmetz
2004-11-27 23:21         ` Arnd Bergmann
2004-11-28 13:24           ` Andreas Steinmetz
2004-11-28 13:40             ` Arnd Bergmann
2004-11-29 11:08 ` David Howells
2004-11-29 20:01 ` H. Peter Anvin
2004-11-30  0:34   ` Kyle Moffett
2004-11-30  0:51     ` H. Peter Anvin
2004-12-14  7:07   ` Werner Almesberger

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