From: "H. Peter Anvin" <hpa@zytor.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Jeff Dike <jdike@addtoit.com>,
Bjoern Steinbrink <B.Steinbrink@gmx.de>,
Arjan van de Ven <arjan@infradead.org>,
Chase Venters <chase.venters@clientec.com>,
Andrew Morton <akpm@osdl.org>,
Russell King <rmk+lkml@arm.linux.org.uk>,
rusty@rustcorp.com.au
Subject: Re: [PATCH 4/7] Remove the use of _syscallX macros in UML
Date: Tue, 29 Aug 2006 22:41:02 -0700 [thread overview]
Message-ID: <44F524EE.90304@zytor.com> (raw)
In-Reply-To: <20060827215636.797086000@klappe.arndb.de>
Arnd Bergmann wrote:
> User mode linux uses _syscallX() to call into the host kernel.
> The recommended way to do this is to use the syscall() function
> from libc.
Not really.
syscall() is a horrible botch; it is in fact unimplementable (without
enormous switch statements) on a number of architectures.
-hpa
next prev parent reply other threads:[~2006-08-30 5:42 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-27 21:47 [PATCH 0/7] kill __KERNEL_SYSCALLS__ Arnd Bergmann
2006-08-27 21:47 ` [PATCH 2/7] rename the provided execve functions to kernel_execve Arnd Bergmann
2006-08-28 2:20 ` Randy.Dunlap
2006-08-28 7:44 ` Arnd Bergmann
2006-08-27 21:47 ` [PATCH 3/7] provide kernel_execve on all architectures Arnd Bergmann
2006-08-29 2:22 ` Ralf Baechle
2006-08-29 17:21 ` David Howells
2006-08-27 21:47 ` [PATCH 4/7] Remove the use of _syscallX macros in UML Arnd Bergmann
2006-08-28 9:25 ` Andreas Schwab
2006-08-30 5:41 ` H. Peter Anvin [this message]
2006-08-30 12:38 ` Arnd Bergmann
2006-08-27 21:47 ` [PATCH 6/7] remove all remaining _syscallX macros Arnd Bergmann
2006-08-28 7:35 ` Andi Kleen
2006-08-28 7:41 ` Arnd Bergmann
2006-08-28 7:46 ` Arjan van de Ven
2006-08-28 8:09 ` Arnd Bergmann
2006-08-28 7:50 ` Andi Kleen
2006-08-28 8:01 ` Arnd Bergmann
2006-08-28 8:03 ` Andi Kleen
2006-08-28 8:09 ` David Miller
2006-08-28 8:15 ` Andi Kleen
2006-08-28 8:19 ` David Miller
2006-08-28 8:28 ` Andi Kleen
2006-08-28 8:40 ` David Woodhouse
2006-08-28 8:53 ` Andi Kleen
2006-08-28 10:00 ` David Woodhouse
2006-08-28 10:37 ` Arjan van de Ven
2006-08-28 10:58 ` Andi Kleen
2006-08-28 14:05 ` Arnd Bergmann
2006-08-28 14:42 ` Andi Kleen
2006-08-28 15:46 ` Adrian Bunk
2006-08-28 17:00 ` Andi Kleen
2006-08-30 17:45 ` Adrian Bunk
2006-08-28 20:20 ` Horst H. von Brand
2006-08-28 21:23 ` Arnd Bergmann
2006-08-30 5:44 ` H. Peter Anvin
2006-08-30 7:22 ` Andi Kleen
2006-08-27 21:47 ` [PATCH 7/7] remove the global errno from the kernel Arnd Bergmann
2006-08-29 17:23 ` David Howells
2006-08-27 22:00 ` [PATCH 5/7] sh64: remove the use of kernel syscalls Arnd Bergmann
2006-08-28 8:05 ` Paul Mundt
2006-08-27 22:01 ` [PATCH 1/7] introduce kernel_execve Arnd Bergmann
2006-08-29 9:12 ` [PATCH 0/7] kill __KERNEL_SYSCALLS__ David Howells
2006-08-29 9:37 ` Arnd Bergmann
2006-08-29 9:38 ` Haavard Skinnemoen
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