On Tue, Mar 22, 2016 at 9:49 AM, Sebastian Huber < sebastian.hu...@embedded-brains.de> wrote:
> In case we reach the program point marked with RTEMS_UNREACHABLE(), then > the behaviour is undefined according to the GCC documentation. Maybe we > should add some stuff if RTEMS_DEBUG is defined. > > That seems reasonable. It is unlikely that we get there but if we do, you really want to know. The newlib patch for pthread_exit() should have hit their list. > On 22/03/16 07:25, Sebastian Huber wrote: > >> --- >> cpukit/score/include/rtems/score/basedefs.h | 9 +++++++++ >> 1 file changed, 9 insertions(+) >> >> diff --git a/cpukit/score/include/rtems/score/basedefs.h >> b/cpukit/score/include/rtems/score/basedefs.h >> index facaed9..5d7f5b4 100644 >> --- a/cpukit/score/include/rtems/score/basedefs.h >> +++ b/cpukit/score/include/rtems/score/basedefs.h >> @@ -191,6 +191,15 @@ >> /* Provided for backward compatibility */ >> #define RTEMS_COMPILER_PACKED_ATTRIBUTE RTEMS_PACKED >> +/** >> + * @brief Tells the compiler that this program point is unreachable. >> + */ >> +#if defined(__GNUC__) >> + #define RTEMS_UNREACHABLE() __builtin_unreachable() >> +#else >> + #define RTEMS_UNREACHABLE() >> +#endif >> + >> #if __cplusplus >= 201103L >> #define RTEMS_STATIC_ASSERT(cond, msg) \ >> static_assert(cond, # msg) >> > > -- > 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.hu...@embedded-brains.de > PGP : Public key available on request. > > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. > > _______________________________________________ > devel mailing list > devel@rtems.org > http://lists.rtems.org/mailman/listinfo/devel >
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