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.
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
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Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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