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From: Sascha Hauer <s.hauer@pengutronix.de>
To: DU HUANPENG <opentkernel@163.com>
Cc: barebox@lists.infradead.org, Du Huanpeng <u74147@gmail.com>
Subject: Re: [PATCH] arm: decalare div0 as weak function
Date: Mon, 9 Jan 2017 09:20:26 +0100	[thread overview]
Message-ID: <20170109082025.xijkeym5rqdgfv37@pengutronix.de> (raw)
In-Reply-To: <1483800326-14277-1-git-send-email-opentkernel@163.com>

Hi,

On Sat, Jan 07, 2017 at 10:45:26PM +0800, DU HUANPENG wrote:
> From: Du Huanpeng <u74147@gmail.com>
> 
> Signed-off-by: Du Huanpeng <u74147@gmail.com>
> ---
>  arch/arm/lib/div0.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/lib/div0.c b/arch/arm/lib/div0.c
> index 852cb72..d4f3b6c 100644
> --- a/arch/arm/lib/div0.c
> +++ b/arch/arm/lib/div0.c
> @@ -17,11 +17,11 @@
>   *
>   */
>  #include <common.h>
> +#include <linux/compiler.h>
>  
>  extern void __div0(void);
>  
> -/* Replacement (=dummy) for GNU/Linux division-by zero handler */
> -void __div0 (void)
> +__weak void __div0 (void)

Could you explain why and in which situations you need this?

Sascha

>  {
>  	panic("division by zero\n");
>  }
> -- 
> 2.7.4
> 
> 
> 
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
> 

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  reply	other threads:[~2017-01-09  8:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-07 14:45 DU HUANPENG
2017-01-09  8:20 ` Sascha Hauer [this message]
2017-01-09 13:08   ` Du Huanpeng

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