[PATCH] rtems crt0: Add stubs for arc4random.

[Sebastian Huber]

Ping. This patch is necessary so that Autoconf link-time tests can 
detect the arc4random() function on RTEMS.

On 04/05/16 11:45, Christian Mauderer wrote:
> From: Christian Mauderer <Christian.Mauderer@embedded-brains.de>
>
> ---
>   newlib/libc/sys/rtems/crt0.c | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/newlib/libc/sys/rtems/crt0.c b/newlib/libc/sys/rtems/crt0.c
> index 3bf7083..1a0a055 100644
> --- a/newlib/libc/sys/rtems/crt0.c
> +++ b/newlib/libc/sys/rtems/crt0.c
> @@ -16,6 +16,7 @@
>   #include <time.h> /* struct timespec */
>   #include <unistd.h> /* isatty */
>   #include <sys/lock.h> /* _Mutex_recursive_Control */
> +#include <machine/_arc4random.h>
>   #include <machine/_libatomic.h>
>   
>   void rtems_provides_crt0( void ) {}  /* dummy symbol so file always has one */
> @@ -66,6 +67,10 @@ RTEMS_STUB(void, _Libatomic_Protect_end(void *ptr, __uint32_t isr_level), { });
>   RTEMS_STUB(void, _Libatomic_Lock_n(void *ptr, __size_t n), { });
>   RTEMS_STUB(void, _Libatomic_Unlock_n(void *ptr, __size_t n), { });
>   
> +/* Stubs for routines for arc4random (from <unistd.h> and <machine/_arc4random.h> */
> +RTEMS_STUB(int,  getentropy(void *ptr, __size_t n), { });
> +RTEMS_STUB(void, _arc4random_getentropy_fail(void), { });
> +
>   #if defined(__GNUC__)
>   /*
>    * stubs for libstdc++ rtems-threads support functions from gcc/gthr-rtems.h

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber@embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.