| /* 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); |
| } |
| |