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authorSebastian Huber <sebastian.huber@embedded-brains.de>2021-06-10 09:55:42 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2021-06-10 15:55:47 +0200
commitfad01e6cf95f98adaca3157faa8b96c19296a68e (patch)
tree4cad0a1296d4af5c402a47dcbd3fdda949371f22 /cpukit/include
parent2769554243c43eee9fd5066a5cd770ab89ec47a3 (diff)
downloadrtems-fad01e6cf95f98adaca3157faa8b96c19296a68e.tar.bz2
score: Add PER_CPU_DATA_NEED_INITIALIZATION()
Make the initialization of the per-CPU data optional. Change license to BSD-2-Clause according to file history and re-licensing agreement. Update #3053.
Diffstat (limited to '')
-rw-r--r--cpukit/include/rtems/score/percpudata.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/percpudata.h b/cpukit/include/rtems/score/percpudata.h
index cae73a62b0..da454fd7bf 100644
--- a/cpukit/include/rtems/score/percpudata.h
+++ b/cpukit/include/rtems/score/percpudata.h
@@ -51,6 +51,20 @@ extern "C" {
RTEMS_LINKER_RWSET_DECLARE( _Per_CPU_Data, char );
/**
+ * @brief Translation units which define per-CPU items shall call this macro
+ * exactly once at file scope.
+ */
+#ifdef RTEMS_SMP
+#define PER_CPU_DATA_NEED_INITIALIZATION() \
+ static const char * const _Per_CPU_Data_reference \
+ RTEMS_SECTION( ".rtemsroset.reference" ) RTEMS_USED = \
+ RTEMS_LINKER_SET_BEGIN( _Per_CPU_Data )
+#else
+#define PER_CPU_DATA_NEED_INITIALIZATION() \
+ RTEMS_LINKER_RWSET_DECLARE( _Per_CPU_Data, char )
+#endif
+
+/**
* @brief Declares a per-CPU item of the specified type.
*
* Items declared with this macro have external linkage.