LPCOpen Platform for LPC18XX/43XX microcontrollers: C:/w/lpcopen_docs/software/freertos/freertoslpc/redlib_memfix.c Source File

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redlib_memfix.c
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1 /*
2 * @brief Redlib memory allocation fix
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #if defined (__REDLIB__)
33
34 /* Application can override this by setting STACK_SIZE in project defines */
35 #ifndef STACK_SIZE
36 #define STACK_SIZE (0x400)
37 #endif
38
39 /* Top of stack that comes from linker script */
40 extern void _vStackTop(void);
41
42 /*
43 * Heap check function override, fixes heap3.c malloc failures
44 */
45 extern unsigned int *_pvHeapStart;
46 unsigned int __check_heap_overflow (void * new_end_of_heap)
47 {
48 unsigned long stackend = ((unsigned long) &_vStackTop) - STACK_SIZE;
49 return ((unsigned long)new_end_of_heap >= stackend);
50 }
51 #endif /* defined (__REDLIB__) */