LPCOpen Platform for LPC112X microcontrollers  112X
LPCOpen Platform for the NXP LPC112X family of Microcontrollers
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__) */