linux-kernel - Re: [PATCH v5 29/29] nios2: Build infrastructure

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Date:	Tue, 28 Oct 2014 14:38:22 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Ley Foon Tan <lftan@...era.com>
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, lftan.linux@...il.com,
	cltang@...esourcery.com
Subject: Re: [PATCH v5 29/29] nios2: Build infrastructure

On Friday 24 October 2014 16:24:31 Ley Foon Tan wrote:
> +DECLARE_EXPORT(__gcc_bcmp);
> +DECLARE_EXPORT(__divdi3);
> +DECLARE_EXPORT(__divsi3);
> +DECLARE_EXPORT(__moddi3);
> +DECLARE_EXPORT(__modsi3);
> +DECLARE_EXPORT(__udivdi3);
> +DECLARE_EXPORT(__udivmoddi4);
> +DECLARE_EXPORT(__udivsi3);
> +DECLARE_EXPORT(__umoddi3);
> +DECLARE_EXPORT(__umodsi3);
> +DECLARE_EXPORT(__muldi3);
> 

I don't remember what all of these are, but at least some of them seem
to be concerned with 64-bit division. By convention, we don't provide those
in the Linux kernel but instead require all code to use the do_div()
macro instead.

	Arnd
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