[Buildroot] [PATCH v2] mpv: needs atomics or 8-byte sync

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Mon Nov 21 21:43:03 UTC 2016


Hello,

On Sun, 20 Nov 2016 15:54:34 +0100, Arnout Vandecappelle
(Essensium/Mind) wrote:
> The wscript checks the following.
>         'func': check_libs(['atomic'],
>             check_statement('stdint.h',
>                 'int64_t test = 0;'
>                 'test = __atomic_add_fetch(&test, 1, __ATOMIC_SEQ_CST)')),
> and
>         'func': check_statement('stdint.h',
>                     'int64_t test = 0;'
>                     '__typeof__(test) x = ({int a = 1; a;});'
>                     'test = __sync_add_and_fetch(&test, 1)'),
> It fails if neither of these are available.
> 
> Fixes
> http://autobuild.buildroot.net/results/8c20f719f784af1312294600e39004c1d382368a
> 
> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
> ---
> I couldn't find a compiler without atomics and with 8-byte sync, so not
> entirely sure if it's enough.

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com


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