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authorJoel Sherrill <joel.sherrill@oarcorp.com>2013-09-22 09:40:44 -0500
committerJoel Sherrill <joel.sherrill@oarcorp.com>2013-09-22 09:40:44 -0500
commitecd82b6def40960e168ccb3d4b19ce32fab2d989 (patch)
tree6b022d6f612c56cc4739301189e61813d18a5018
parentleon3/console.c: Fix misisng prototype issues (diff)
downloadrtems-ecd82b6def40960e168ccb3d4b19ce32fab2d989.tar.bz2
basedefs.h: Add RTEMS_COMPILER_UNUSED_ATTRIBUTE.
-rw-r--r--cpukit/score/include/rtems/score/basedefs.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/basedefs.h b/cpukit/score/include/rtems/score/basedefs.h
index 858ca93d27..082bfbddfd 100644
--- a/cpukit/score/include/rtems/score/basedefs.h
+++ b/cpukit/score/include/rtems/score/basedefs.h
@@ -184,6 +184,17 @@
#define RTEMS_COMPILER_DEPRECATED_ATTRIBUTE
#endif
+/**
+ * Instructs the compiler that a specific variable is deliberately unused.
+ * This can occur when reading volatile device memory or skipping arguments
+ * in a variable argument method.
+ */
+#if defined(__GNUC__)
+ #define RTEMS_COMPILER_UNUSED_ATTRIBUTE __attribute__((unused))
+#else
+ #define RTEMS_COMPILER_UNUSED_ATTRIBUTE
+#endif
+
#if __cplusplus >= 201103L
#define RTEMS_STATIC_ASSERT(cond, msg) \
static_assert(cond, # msg)