From: Jeff Dike <jdike@addtoit.com>
To: Daniel Gryniewicz <dang@gentoo.org>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] ARCH=um SUBARCH=i386 breakage?
Date: Wed, 18 Jul 2007 21:25:25 -0400 [thread overview]
Message-ID: <20070719012525.GA12468@c2.user-mode-linux.org> (raw)
In-Reply-To: <1184807588.7782.1.camel@athena.fprintf.net>
On Wed, Jul 18, 2007 at 09:13:08PM -0400, Daniel Gryniewicz wrote:
> Actually, the Gentoo headers are not particularly close to the kernel
> headers. They are heavily "sanitized", meaning that all kinds of things
> that userspace is "not supposed to use" are removed. This makes it very
> hard for things like UML, that are heavily tied to the kernel, to build.
UML isn't heavily tied to the kernel in the way that you mean, I think.
However, it does explore some obscure parts of the API. For example,
the elimination of user.h makes it impossible to use
PTRACE_SETFP[X]REGS, as there is no way to tell what size buffer
should be passed in.
I'm all for minimizing the headers exported to userspace (and have
made a small contribution in that direction - ptrace-abi.h). I'm
happy to make UML stop using things it shouldn't. At the same time,
it should be possible to use the full userspace API.
Jeff
--
Work email - jdike at linux dot intel dot com
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next prev parent reply other threads:[~2007-07-19 1:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 11:06 [uml-devel] ARCH=um SUBARCH=i386 breakage? Antoine Martin
2007-07-13 12:03 ` Antoine Martin
2007-07-13 15:57 ` Jeff Dike
2007-07-13 17:41 ` Antoine Martin
2007-07-13 18:44 ` Jeff Dike
2007-07-14 9:23 ` Antoine Martin
2007-07-14 12:00 ` Jeff Dike
2007-07-15 17:08 ` Antoine Martin
2007-07-19 1:13 ` Daniel Gryniewicz
2007-07-19 1:25 ` Jeff Dike [this message]
2007-07-19 19:54 ` Antoine Martin
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