linux-kernel - Re: [PATCH] arch/tile: new multi-core architecture for Linux

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Date:	Thu, 27 May 2010 17:20:36 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Chris Metcalf <cmetcalf@...era.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-arch@...r.kernel.org
Subject: Re: [PATCH] arch/tile: new multi-core architecture for Linux

On Thursday 27 May 2010, Chris Metcalf wrote:
> That turns out to be fairly easy:
> 
> #undef __SYSCALL
> #define __SYSCALL(nr, call) [nr] = (call),
> 
> #ifndef __tilegx__
> #define sys_fadvise64 sys32_fadvise64
> #define sys_fadvise64_64 sys32_fadvise64_64
> #define sys_readahead sys32_readahead
> #endif
> 
> void *sys_call_table[__NR_syscalls] = {
>         [0 ... __NR_syscalls-1] = sys_ni_syscall,
> #include <asm/unistd.h>
> };
> 

Ok. This does mean that you're no longer using a shared
version of the sys_call_table.c file but your own one, but
since the file so simple, that should not be a problem.

We can think about merging it when we have more architectures
that need a hack like this, which might never happen.

	Arnd
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