config: Add <rtems/confdefs/wkspace.h>

Remove all comments and copyrightable content from the moved content.
Use BSD-2-Clause license for new file.

Change licence of <rtems/confdefs.h> to BSD-2-Clause according to file
history.

Update #3053.
Close #3875.

1 files changed, 182 insertions, 0 deletions

diff --git a/cpukit/include/rtems/confdefs/wkspace.h b/cpukit/include/rtems/confdefs/wkspace.h
new file mode 100644
index 0000000000..484dde20ea
--- /dev/null
+++ b/cpukit/include/rtems/confdefs/wkspace.h
@@ -0,0 +1,182 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSApplicationConfiguration
+ *
+ * @brief Evaluate Workspace Configuration Options
+ */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ */
+
+#ifndef _RTEMS_CONFDEFS_WKSPACE_H
+#define _RTEMS_CONFDEFS_WKSPACE_H
+
+#ifndef __CONFIGURATION_TEMPLATE_h
+#error "Do not include this file directly, use <rtems/confdefs.h> instead"
+#endif
+
+#ifdef CONFIGURE_INIT
+
+#include <rtems/confdefs/bdbuf.h>
+#include <rtems/confdefs/inittask.h>
+#include <rtems/confdefs/initthread.h>
+#include <rtems/confdefs/objectsposix.h>
+#include <rtems/confdefs/threads.h>
+#include <rtems/confdefs/wkspacesupport.h>
+#include <rtems/score/coremsg.h>
+#include <rtems/score/context.h>
+#include <rtems/score/memory.h>
+#include <rtems/score/stack.h>
+#include <rtems/sysinit.h>
+
+#ifdef CONFIGURE_TASK_STACK_FROM_ALLOCATOR
+  #define _Configure_From_stackspace( _stack_size ) \
+    CONFIGURE_TASK_STACK_FROM_ALLOCATOR( _stack_size + CONTEXT_FP_SIZE )
+#else
+  #define _Configure_From_stackspace( _stack_size ) \
+    _Configure_From_workspace( _stack_size + CONTEXT_FP_SIZE )
+#endif
+
+#ifndef CONFIGURE_EXTRA_TASK_STACKS
+  #define CONFIGURE_EXTRA_TASK_STACKS 0
+#endif
+
+#ifndef CONFIGURE_EXECUTIVE_RAM_SIZE
+
+#define CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( _messages, _size ) \
+  _Configure_From_workspace( \
+    ( _messages ) * ( _Configure_Align_up( _size, sizeof( uintptr_t ) ) \
+        + sizeof( CORE_message_queue_Buffer_control ) ) )
+
+#ifndef CONFIGURE_MESSAGE_BUFFER_MEMORY
+  #define CONFIGURE_MESSAGE_BUFFER_MEMORY 0
+#endif
+
+#ifndef CONFIGURE_MEMORY_OVERHEAD
+  #define CONFIGURE_MEMORY_OVERHEAD 0
+#endif
+
+/*
+ * We must be able to split the free block used for the second last allocation
+ * into two parts so that we have a free block for the last allocation.  See
+ * _Heap_Block_split().
+ */
+#define _CONFIGURE_HEAP_HANDLER_OVERHEAD \
+  _Configure_Align_up( HEAP_BLOCK_HEADER_SIZE, CPU_HEAP_ALIGNMENT )
+
+#define CONFIGURE_EXECUTIVE_RAM_SIZE \
+  ( _CONFIGURE_MEMORY_FOR_POSIX_OBJECTS \
+    + CONFIGURE_MESSAGE_BUFFER_MEMORY \
+    + 1024 * CONFIGURE_MEMORY_OVERHEAD \
+    + _CONFIGURE_HEAP_HANDLER_OVERHEAD )
+
+#define _CONFIGURE_STACK_SPACE_SIZE \
+  ( _CONFIGURE_INIT_TASK_STACK_EXTRA \
+    + _CONFIGURE_POSIX_INIT_THREAD_STACK_EXTRA \
+    + _CONFIGURE_LIBBLOCK_TASKS_STACK_EXTRA \
+    + CONFIGURE_EXTRA_TASK_STACKS \
+    + rtems_resource_maximum_per_allocation( _CONFIGURE_TASKS ) \
+      * _Configure_From_stackspace( CONFIGURE_MINIMUM_TASK_STACK_SIZE ) \
+    + rtems_resource_maximum_per_allocation( CONFIGURE_MAXIMUM_POSIX_THREADS ) \
+      * _Configure_From_stackspace( CONFIGURE_MINIMUM_POSIX_THREAD_STACK_SIZE ) \
+    + _CONFIGURE_HEAP_HANDLER_OVERHEAD )
+
+#else /* CONFIGURE_EXECUTIVE_RAM_SIZE */
+
+#if CONFIGURE_EXTRA_TASK_STACKS != 0
+  #error "CONFIGURE_EXECUTIVE_RAM_SIZE defined with request for CONFIGURE_EXTRA_TASK_STACKS"
+#endif
+
+#define _CONFIGURE_STACK_SPACE_SIZE 0
+
+#endif /* CONFIGURE_EXECUTIVE_RAM_SIZE */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+const uintptr_t _Workspace_Size = CONFIGURE_EXECUTIVE_RAM_SIZE;
+
+#ifdef CONFIGURE_UNIFIED_WORK_AREAS
+  const bool _Workspace_Is_unified = true;
+#endif
+
+uint32_t rtems_minimum_stack_size = CONFIGURE_MINIMUM_TASK_STACK_SIZE;
+
+const uintptr_t _Stack_Space_size = _CONFIGURE_STACK_SPACE_SIZE;
+
+#if defined(CONFIGURE_TASK_STACK_ALLOCATOR) \
+  && defined(CONFIGURE_TASK_STACK_DEALLOCATOR)
+  #ifdef CONFIGURE_TASK_STACK_ALLOCATOR_AVOIDS_WORK_SPACE
+    const bool _Stack_Allocator_avoids_workspace = true;
+  #else
+    const bool _Stack_Allocator_avoids_workspace = false;
+  #endif
+
+  #ifdef CONFIGURE_TASK_STACK_ALLOCATOR_INIT
+    const Stack_Allocator_initialize _Stack_Allocator_initialize =
+      CONFIGURE_TASK_STACK_ALLOCATOR_INIT;
+  #else
+    const Stack_Allocator_initialize _Stack_Allocator_initialize = NULL;
+  #endif
+
+  const Stack_Allocator_allocate _Stack_Allocator_allocate =
+    CONFIGURE_TASK_STACK_ALLOCATOR;
+
+  const Stack_Allocator_free _Stack_Allocator_free =
+    CONFIGURE_TASK_STACK_DEALLOCATOR;
+#elif defined(CONFIGURE_TASK_STACK_ALLOCATOR) \
+  || defined(CONFIGURE_TASK_STACK_DEALLOCATOR)
+  #error "CONFIGURE_TASK_STACK_ALLOCATOR and CONFIGURE_TASK_STACK_DEALLOCATOR must be both defined or both undefined"
+#endif
+
+#ifdef CONFIGURE_DIRTY_MEMORY
+  RTEMS_SYSINIT_ITEM(
+    _Memory_Dirty_free_areas,
+    RTEMS_SYSINIT_DIRTY_MEMORY,
+    RTEMS_SYSINIT_ORDER_MIDDLE
+  );
+#endif
+
+#ifdef CONFIGURE_ZERO_WORKSPACE_AUTOMATICALLY
+  const bool _Memory_Zero_before_use = true;
+
+  RTEMS_SYSINIT_ITEM(
+    _Memory_Zero_free_areas,
+    RTEMS_SYSINIT_ZERO_MEMORY,
+    RTEMS_SYSINIT_ORDER_MIDDLE
+  );
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CONFIGURE_INIT */
+
+#endif /* _RTEMS_CONFDEFS_WKSPACE_H */