linux-kernel - Re: Making a universal list of syscalls?

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Message-ID: <5317BE63.1000600@zytor.com>
Date:	Wed, 05 Mar 2014 16:16:35 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andy Lutomirski <luto@...capital.net>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arch <linux-arch@...r.kernel.org>,
	libseccomp-discuss@...ts.sourceforge.net
Subject: Re: Making a universal list of syscalls?

On 03/05/2014 04:13 PM, Andy Lutomirski wrote:
> 
> I think that SYSCALLS.def won't work as is -- SYSCALLS.def
> references unistd, which ought to be autogenerated from the syscalls
> list.  But a somewhat less magical variant should work.
> 

Well, that is because unistd.h is one of the very few things the kernel
actually *does* export (containing system call numbers, and *usually* is
enough to detect presence/absence of a certain system call, which is
actually all you need in the vast majority of cases.)

	-hpa


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