score: Extend memory dirty/zero actions

Dirty or zero also the part of the .noinit section used by RTEMS.

Close #4678.

3 files changed, 61 insertions, 2 deletions

diff --git a/cpukit/score/src/memorydirtyfreeareas.c b/cpukit/score/src/memorydirtyfreeareas.c
index fc6c2630bf..8a817c2208 100644
--- a/cpukit/score/src/memorydirtyfreeareas.c
+++ b/cpukit/score/src/memorydirtyfreeareas.c
@@ -10,7 +10,7 @@
 /*
  * SPDX-License-Identifier: BSD-2-Clause
  *
- * Copyright (C) 2020 embedded brains GmbH
+ * Copyright (C) 2020, 2022 embedded brains GmbH
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -40,7 +40,14 @@
 
 #include <rtems/score/memory.h>
 
+#include <string.h>
+
 void _Memory_Dirty_free_areas( void )
 {
   _Memory_Fill( _Memory_Get(), 0xcf );
+  memset(
+    _Memory_Noinit_begin,
+    0xcf,
+    (uintptr_t) _Memory_Noinit_end - (uintptr_t) _Memory_Noinit_begin
+  );
 }
diff --git a/cpukit/score/src/memorynoinit.c b/cpukit/score/src/memorynoinit.c
new file mode 100644
index 0000000000..19772356cd
--- /dev/null
+++ b/cpukit/score/src/memorynoinit.c
@@ -0,0 +1,45 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSScoreMemory
+ *
+ * @brief This source file contains the definition of ::_Memory_Noinit_begin
+ *   and ::_Memory_Noinit_end.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2022 embedded brains GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/score/memory.h>
+
+RTEMS_SECTION( ".noinit.rtems.begin" ) char _Memory_Noinit_begin[ 0 ];
+
+RTEMS_SECTION( ".noinit.rtems.end" ) char _Memory_Noinit_end[ 0 ];
diff --git a/cpukit/score/src/memoryzerofreeareas.c b/cpukit/score/src/memoryzerofreeareas.c
index 4ea0812426..b1cef47ef9 100644
--- a/cpukit/score/src/memoryzerofreeareas.c
+++ b/cpukit/score/src/memoryzerofreeareas.c
@@ -10,7 +10,7 @@
 /*
  * SPDX-License-Identifier: BSD-2-Clause
  *
- * Copyright (C) 2020 embedded brains GmbH
+ * Copyright (C) 2020, 2022 embedded brains GmbH
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -40,7 +40,14 @@
 
 #include <rtems/score/memory.h>
 
+#include <string.h>
+
 void _Memory_Zero_free_areas( void )
 {
   _Memory_Fill( _Memory_Get(), 0 );
+  memset(
+    _Memory_Noinit_begin,
+    0,
+    (uintptr_t) _Memory_Noinit_end - (uintptr_t) _Memory_Noinit_begin
+  );
 }