From: rkiyerpersonal@gmail.com (Rajanikanth H.V)
To: linux-arm-kernel@lists.infradead.org
Subject: Query about Float Point Operation
Date: Mon, 29 Mar 2010 10:52:50 +0530 [thread overview]
Message-ID: <d82162471003282222q5e463306rd385c3ed54879e4d@mail.gmail.com> (raw)
In-Reply-To: <tencent_1612D48D0AEC89DB53D9FFBB@qq.com>
2010/3/23 ??? <914059751@qq.com>:
> Hi , guys
> I want to do float point operations in kernel like the following,
>
> int foo(double d)
> {
>
> return (int)d*d;
>
> }
>
> while compiling output error msg like following:
> cannt find eabi_dmul ?balabla??????
>
> May I ask any possibility of use float point operation in the kernel space?
> Any hints/doc would be appreciated!
I do not know how are you compiling the required function.
Use hardware floating point support. If your target SOC support.
Also verify whether Floating Point Emulation -> VFP is enabled in your config.
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
next prev parent reply other threads:[~2010-03-29 5:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-23 12:57 Query about Float Point Operation 胡杨树
2010-03-23 13:34 ` Måns Rullgård
2010-03-29 5:22 ` Rajanikanth H.V [this message]
2010-03-29 8:11 ` Russell King - ARM Linux
2010-03-29 8:19 ` 答复: " rocky
2010-03-29 10:59 ` Martin Guy
-- strict thread matches above, loose matches on Subject: below --
2010-03-23 13:41 胡杨树
2010-03-28 21:47 ` Jamie Lokier
2010-03-28 23:34 ` Nicolas Pitre
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