1 files changed, 54 insertions, 0 deletions
diff --git a/cpukit/score/src/configstackspacesize.c b/cpukit/score/src/configstackspacesize.c
new file mode 100644
index 0000000000..4f0c24cee6
--- /dev/null
+++ b/cpukit/score/src/configstackspacesize.c
@@ -0,0 +1,54 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2014, 2019 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.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/config.h>
+#include <rtems/score/stack.h>
+#include <rtems/score/tls.h>
+#include <rtems/score/thread.h>
+
+uintptr_t rtems_configuration_get_stack_space_size( void )
+{
+  uintptr_t space_size;
+
+  space_size = _Stack_Space_size;
+
+  /*
+   * In case we have a non-zero TLS size, then we need a TLS area for each
+   * thread.  These areas are allocated within the stack area from the stack
+   * space.  Ensure that the stack space is large enough to fulfill all requests
+   * known at configuration time (so excluding the unlimited option).  It is not
+   * possible to estimate the TLS size in the configuration at compile-time.
+   * The TLS size is determined at application link-time.
+   */
+  space_size += _Thread_Initial_thread_count * _TLS_Get_allocation_size();
+
+  return space_size;
+}