linux-kernel - Re: [RFC PATCH v1 14/31] ARC: syscall support

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Message-Id: <201211071421.39523.arnd@arndb.de>
Date:	Wed, 7 Nov 2012 14:21:39 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	tglx@...utronix.de
Subject: Re: [RFC PATCH v1 14/31] ARC: syscall support

On Wednesday 07 November 2012, Vineet Gupta wrote:
> + * Being uClibc based we need some of the deprecated syscalls:
> + * -Not emulated by uClibc at all
> + *     unlink, mkdir,... (needed by Busybox, LTP etc)
> + *     times (needed by LTP pan test harness)
> + * -Not emulated efficiently
> + *     select: emulated using pselect (but extra code to chk usec > 1sec)
> + *
> + * some (send/recv) correctly emulated using (recfrom/sendto) and
> + * some arch specific ones (fork/vfork)can easily be emulated using clone but
> + * thats the price of using common-denominator....
> + */
> +#define __ARCH_WANT_SYSCALL_NO_AT
> +#define __ARCH_WANT_SYSCALL_NO_FLAGS
> +#define __ARCH_WANT_SYSCALL_OFF_T
> +#define __ARCH_WANT_SYSCALL_DEPRECATED

I'm pretty sure that this has been solved before, best get in contact with
the maintainers of the openrisc/c6x/hexagon platforms, that probably all
use uClibc without needing these.

You have to remove the legacy calls here.

	Arnd
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