Re: How can I link the kernel with libgcc ?

Carlos Munoz
2006-03-10T02:56:53Z

Lee Revell wrote:

>On Thu, 2006-03-09 at 20:45 -0500, Valdis.Kletnieks@vt.edu wrote:
>
>
>>On Thu, 09 Mar 2006 17:44:16 PST, Carlos Munoz said:
>>
>>
>>>I'm writing an audio driver and the hardware requires floating point
>>>arithmetic. When I build the kernel I get the following errors at link
>>>time:
>>>
>>>
>>Tough break, that. You sure you can't figure a way to either push the
>>floating point out to userspace
>>
>>
>
>Audio drivers should never have to directly manipulate the samples -
>they just manage the DMA buffers and interrupts and wake up the process
>at the right time. Mixing, routing, volume control, DSP go in
>userspace.
>
>Lee
>
>
>
Hi Lee,

Unfortunately, the driver needs to populate several coefficient tables
for the hardware to perform silence suppression and other advance
features. The values for these tables are calculated using log10
operations. I don't see a clean way to push these operations to user
space without the need for custom applications that build the tables and
pass them to the driver.

Thanks,

Carlos Munoz