Project about Atomic Operations

[Gedare Bloom]

On Mon, Mar 26, 2012 at 10:59 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> On 03/26/2012 04:43 PM, Yang Wei wrote:
>>
>> Hi Huber,
>>     The implementation of C 2011 standard should also be part of
>> compiler,right?
>
>
> Yes, but the compiler might need help from the operating system.
>
>
>> I am not really familiar with its implementation. And the C 2011 support
>> all architecture atomic primitive?
>
>
> The atomic support is optional, but I guess GCC will support it on all main
> architectures.  Please also have a look in the standard:
>
> http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf
>
Maybe we should design our API to be at least a superset of what the
compiler must provide for C11 compliance. Target architectures /
compilers that do not support the C11 atomics will need the atomic
operations implemented in assembly language. For targets that are
supported the API will thinly wrap the C-language atomic features and
can share code.

-Gedare

>
> --
> Sebastian Huber, embedded brains GmbH
>
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