rtems-libbsd copyinstr

[Sebastian Huber]

On 04/18/2012 05:54 PM, Joel Sherrill wrote:
> On 04/18/2012 10:33 AM, Sebastian Huber wrote:
>> On 04/18/2012 04:59 PM, Joel Sherrill wrote:
>>> Hi,
>>>
>>> copyinstr is currently undefined. According to cscope,
>>> it is only defined in
>>>
>>> powerpc/aim/copyinout.c
>>> powerpc/booke/copyinout.c
>>>
>>> in the source we are using. But when I look where it is
>>> referenced in rtems-libbsd, it should have a generic
>>> implementation. And these files have much more than this
>>> one routine.
>>>
>>> Any thoughts?
>>>
>> I think these are the user/kernel space copy routines. Do we need them at all?
>>
> My gut was that we could have our own implementation which
> called memcpy. We don't have user/kernel space but it does appear
> to be copying data.
>

These functions are documented here:

http://www.freebsd.org/cgi/man.cgi?query=copy

Maybe it is sufficient so simply assign the kernel address to the user pointer 
and vice versa?

-- 
Sebastian Huber, embedded brains GmbH

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