2 * FreeRTOS Kernel <DEVELOPMENT BRANCH>
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3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * https://www.FreeRTOS.org
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23 * https://github.com/FreeRTOS
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27 /* THIS SAMPLE CODE IS PROVIDED AS IS AND IS SUBJECT TO ALTERATIONS. FUJITSU */
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28 /* MICROELECTRONICS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR */
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29 /* ELIGIBILITY FOR ANY PURPOSES. */
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30 /* (C) Fujitsu Microelectronics Europe GmbH */
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31 /*---------------------------------------------------------------------------
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33 - Used by heap_3.c for memory accocation and deletion.
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35 /*---------------------------------------------------------------------------*/
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37 #include "FreeRTOSConfig.h"
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40 static long brk_siz = 0;
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41 typedef int _heep_t;
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42 #define ROUNDUP(s) (((s)+sizeof(_heep_t)-1)&~(sizeof(_heep_t)-1))
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43 static _heep_t _heep[ROUNDUP(configTOTAL_HEAP_SIZE)/sizeof(_heep_t)];
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44 #define _heep_size ROUNDUP(configTOTAL_HEAP_SIZE)
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46 extern char *sbrk(int size)
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48 if (brk_siz + size > _heep_size || brk_siz + size < 0)
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52 return( (char*)_heep + brk_siz - size);
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