| /* THIS SAMPLE CODE IS PROVIDED AS IS AND IS SUBJECT TO ALTERATIONS. FUJITSU */ | |
| /* MICROELECTRONICS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR */ | |
| /* ELIGIBILITY FOR ANY PURPOSES. */ | |
| /* (C) Fujitsu Microelectronics Europe GmbH */ | |
| /*--------------------------------------------------------------------------- | |
| __STD_LIB_sbrk.C | |
| - Used by heap_3.c for memory accocation and deletion. | |
| /*---------------------------------------------------------------------------*/ | |
| #include "FreeRTOSConfig.h" | |
| #include <stdlib.h> | |
| static long brk_siz = 0; | |
| typedef int _heep_t; | |
| #define ROUNDUP(s) (((s)+sizeof(_heep_t)-1)&~(sizeof(_heep_t)-1)) | |
| static _heep_t _heep[ROUNDUP(configTOTAL_HEAP_SIZE)/sizeof(_heep_t)]; | |
| #define _heep_size ROUNDUP(configTOTAL_HEAP_SIZE) | |
| extern char *sbrk(int size) | |
| { | |
| if (brk_siz + size > _heep_size || brk_siz + size < 0) | |
| return((char*)-1); | |
| brk_siz += size; | |
| return( (char*)_heep + brk_siz - size); | |
| } | |