config: Add _Workspace_Size

Move the workspace size configuration constant out of the configuration
table.

Update #3875.

cpukit/headers.am

@@ -408,6 +408,7 @@ include_rtems_score_HEADERS += include/rtems/score/watchdog.h
 include_rtems_score_HEADERS += include/rtems/score/watchdogimpl.h
 include_rtems_score_HEADERS += include/rtems/score/watchdogticks.h
 include_rtems_score_HEADERS += include/rtems/score/wkspace.h
+include_rtems_score_HEADERS += include/rtems/score/wkspacedata.h
 include_rtems_trace_HEADERS += include/rtems/trace/rtems-trace-buffer-vars.h
 include_sys_HEADERS += include/sys/_ffcounter.h
 include_sys_HEADERS += include/sys/cdefs_elf.h

cpukit/include/rtems/confdefs.h

@@ -2637,7 +2637,6 @@ struct _reent *__getreent(void)
    * This is the primary Configuration Table for this application.
    */
   const rtems_configuration_table Configuration = {
-    CONFIGURE_EXECUTIVE_RAM_SIZE,             /* required RTEMS workspace */
     #ifdef CONFIGURE_UNIFIED_WORK_AREAS       /* true for unified work areas */
       true,
     #else
@@ -2655,6 +2654,8 @@ struct _reent *__getreent(void)
     #endif
   };
 
+  const uintptr_t _Workspace_Size = CONFIGURE_EXECUTIVE_RAM_SIZE;
+
   #ifdef CONFIGURE_DIRTY_MEMORY
     RTEMS_SYSINIT_ITEM(
       _Memory_Dirty_free_areas,

cpukit/include/rtems/config.h

@@ -34,6 +34,7 @@
 #include <rtems/score/userextdata.h>
 #include <rtems/score/threadidledata.h>
 #include <rtems/score/watchdogticks.h>
+#include <rtems/score/wkspacedata.h>
 #include <rtems/rtems/config.h>
 #include <rtems/extension.h>
 #if defined(RTEMS_MULTIPROCESSING)
@@ -82,11 +83,6 @@ typedef Stack_Allocator_free rtems_stack_free_hook;
  *     + required number of each object type for each API configured
  */
 typedef struct {
-  /**
-   * This field specifies the size in bytes of the RTEMS Workspace.
-   */
-  uintptr_t                      work_space_size;
-
   /**
    * @brief Specifies if a unified work area is used or not.
    *
@@ -132,7 +128,7 @@ extern const rtems_configuration_table Configuration;
 uintptr_t rtems_configuration_get_stack_space_size( void );
 
 #define rtems_configuration_get_work_space_size() \
-        (Configuration.work_space_size + \
+        (_Workspace_Size + \
           (rtems_configuration_get_stack_allocator_avoids_work_space() ? \
             0 : rtems_configuration_get_stack_space_size()))
 

cpukit/include/rtems/score/wkspacedata.h

@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSScoreWorkspace
+ *
+ * @brief Constants defined by the application configuration for the idle
+ * threads.
+ */
+
+/*
+ * 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_SCORE_WKSPACEDATA_H
+#define _RTEMS_SCORE_WKSPACEDATA_H
+
+#include <rtems/score/basedefs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @addtogroup RTEMSScoreWorkspace
+ *
+ * @{
+ */
+
+/**
+ * @brief The workspace size in bytes.
+ *
+ * This constant is defined by the application configuration via
+ * <rtems/confdefs.h>.
+ */
+extern const uintptr_t _Workspace_Size;
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTEMS_SCORE_WKSPACEDATA_H */