[rtems commit] Add __synch_synchronize function for arm

[Sebastian Huber]

This file lacks a license header.

On 01/08/15 19:20, Joel Sherril wrote:
> Module:    rtems
> Branch:    4.11
> Commit:    1cf91e0b0a6e93a5344a9b4fc6c09f44ff95d1e2
> Changeset: http://git.rtems.org/rtems/commit/?id=1cf91e0b0a6e93a5344a9b4fc6c09f44ff95d1e2
>
> Author:    Jan Sommer <summerspam at web.de>
> Date:      Sat Aug  1 05:43:12 2015 -0500
>
> Add __synch_synchronize function for arm
>
> Fixes link failure when linking Ada programs on the raspberry pi
>
> ---
>
>   cpukit/score/cpu/arm/Makefile.am              | 1 +
>   cpukit/score/cpu/arm/armv4-sync-synchronize.c | 9 +++++++++
>   2 files changed, 10 insertions(+)
>
> diff --git a/cpukit/score/cpu/arm/Makefile.am b/cpukit/score/cpu/arm/Makefile.am
> index c051a48..4b242f0 100644
> --- a/cpukit/score/cpu/arm/Makefile.am
> +++ b/cpukit/score/cpu/arm/Makefile.am
> @@ -27,6 +27,7 @@ libscorecpu_a_SOURCES += arm_exc_handler_high.c
>   libscorecpu_a_SOURCES += arm-exception-frame-print.c
>   libscorecpu_a_SOURCES += arm-exception-default.c
>   libscorecpu_a_SOURCES += armv4-exception-default.S
> +libscorecpu_a_SOURCES += armv4-sync-synchronize.c
>   libscorecpu_a_SOURCES += armv7-thread-idle.c
>   libscorecpu_a_SOURCES += armv7m-context-initialize.c
>   libscorecpu_a_SOURCES += armv7m-context-restore.c
> diff --git a/cpukit/score/cpu/arm/armv4-sync-synchronize.c b/cpukit/score/cpu/arm/armv4-sync-synchronize.c
> new file mode 100644
> index 0000000..6fcac05
> --- /dev/null
> +++ b/cpukit/score/cpu/arm/armv4-sync-synchronize.c
> @@ -0,0 +1,9 @@
> +void
> +__sync_synchronize (void)
> +{
> +#ifdef ARM_MULTILIB_HAS_BARRIER_INSTRUCTIONS
> +  asm volatile("dmb" : : : "memory");
> +#else
> +  asm volatile("" : : : "memory");
> +#endif
> +}
> \ No newline at end of file
>
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-- 
Sebastian Huber, embedded brains GmbH

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E-Mail  : sebastian.huber at embedded-brains.de
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