[PATCH 3/5] libstdthreads/thrd.c: Mark path as unreachable on GCC to resolve warning
Sebastian Huber
sebastian.huber at embedded-brains.de
Mon Mar 21 12:33:32 UTC 2016
On 21/03/16 13:31, Joel Sherrill wrote:
>
>
> On Mon, Mar 21, 2016 at 1:26 AM, Sebastian Huber
> <sebastian.huber at embedded-brains.de
> <mailto:sebastian.huber at embedded-brains.de>> wrote:
>
>
>
> On 20/03/16 21:40, Joel Sherrill wrote:
>
> ---
> cpukit/libstdthreads/thrd.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/cpukit/libstdthreads/thrd.c
> b/cpukit/libstdthreads/thrd.c
> index c2e439f..cc2d20f 100644
> --- a/cpukit/libstdthreads/thrd.c
> +++ b/cpukit/libstdthreads/thrd.c
> @@ -96,6 +96,9 @@ thrd_exit(int res)
> {
> pthread_exit((void *)(intptr_t)res);
> + #if defined(__GNUC__)
> + __builtin_unreachable();
> + #endif
> }
> int
>
>
> We should fix the pthread_exit() declaration instead, e.g. FreeBSD
> has this:
>
> void pthread_exit(void *) __dead2;
>
> Does that map to gcc noreturn? And does newlib have that?
Yes, or Noreturn if you use the appropriate C++ version. Needs
<sys/cdefs.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 at embedded-brains.de
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