Re: [avr-libc-dev] Bug in _MemoryBarrier()

[Michael Rice]

_MemoryBarrier() was corrected with SVN revision 2307. Bug 37778 is  
still open (50% complete) because there has been some discussion as to  
whether the NOP instruction should have a memory barrier attribute.

On Jan 6, 2014, at 12:31 AM, Dhakshinamoorthy, Soundararajan wrote:

> I suppose that there is a bug already. http://savannah.nongnu.org/bugs/?37778 
> . Hope it gets fixed :-)
>
> Thanks,
> Soundararajan
>
> ________________________________________
> From: address@hidden address@hidden 
> ] on behalf of Martin Laabs address@hidden
> Sent: 04 January 2014 15:48:46
> To: address@hidden
> Subject: [avr-libc-dev] Bug in  _MemoryBarrier()
>
> Hi,
>
> in my avr-libc there is a bug in avr/cpufunc.h in the memory barrier  
> macro.
> It is defined as
>
> #define _MemoryBarrier() __asm__ __volatile__(:::"memory")
>
> but should be:
>
> #define _MemoryBarrier() __asm__ __volatile__("" :::"memory")
>
> Best regards,
> Martin Laabs
>
>
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