rtems/confdefs/wkspacesupport.h

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSImplApplConfig
0007  *
0008  * @brief This header file provides support macros to evaluate configuration
0009  *   options related to the RTEMS Workspace configuration.
0010  */
0011
0012 /*
0013  * Copyright (C) 2020 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifndef _RTEMS_CONFDEFS_WKSPACESUPPORT_H
0038 #define _RTEMS_CONFDEFS_WKSPACESUPPORT_H
0039
0040 #ifndef __CONFIGURATION_TEMPLATE_h
0041 #error "Do not include this file directly, use <rtems/confdefs.h> instead"
0042 #endif
0043
0044 #ifdef CONFIGURE_INIT
0045
0046 #include <rtems/score/heap.h>
0047
0048 #define _Configure_Zero_or_one( _number ) ( ( _number ) != 0 ? 1 : 0 )
0049
0050 #define _Configure_Align_up( _val, _align ) \
0051   ( ( ( _val ) + ( _align ) - 1) - ( ( _val ) + ( _align ) - 1 ) % ( _align ) )
0052
0053 #define _CONFIGURE_HEAP_MIN_BLOCK_SIZE \
0054   _Configure_Align_up( sizeof( Heap_Block ), CPU_HEAP_ALIGNMENT )
0055
0056 #define _Configure_From_workspace( _size ) \
0057   ( (uintptr_t) ( _Configure_Zero_or_one( _size ) \
0058     * _Configure_Align_up( \
0059        _size + HEAP_BLOCK_HEADER_SIZE, \
0060       _CONFIGURE_HEAP_MIN_BLOCK_SIZE \
0061     ) ) )
0062
0063 #endif /* CONFIGURE_INIT */
0064
0065 #endif /* _RTEMS_CONFDEFS_WKSPACESUPPORT_H */