1 /*
2 * FreeRTOS Kernel V10.6.2
3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
4 *
5 * SPDX-License-Identifier: MIT
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy of
8 * this software and associated documentation files (the "Software"), to deal in
9 * the Software without restriction, including without limitation the rights to
10 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
11 * the Software, and to permit persons to whom the Software is furnished to do so,
12 * subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in all
15 * copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
19 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
20 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * https://www.FreeRTOS.org
25 * https://github.com/FreeRTOS
26 *
27 */
28
29
30 /*
31 * Implementation of pvPortMalloc() and vPortFree() that relies on the
32 * compilers own malloc() and free() implementations.
33 *
34 * This file can only be used if the linker is configured to to generate
35 * a heap memory area.
36 *
37 * See heap_1.c, heap_2.c and heap_4.c for alternative implementations, and the
38 * memory management pages of https://www.FreeRTOS.org for more information.
39 */
40
41 #include <stdlib.h>
42
43 /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
44 * all the API functions to use the MPU wrappers. That should only be done when
45 * task.h is included from an application file. */
46 #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
47
48 #include "FreeRTOS.h"
49 #include "task.h"
50
51 #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
52
53 #if ( configSUPPORT_DYNAMIC_ALLOCATION == 0 )
54 #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0
55 #endif
56
57 /*-----------------------------------------------------------*/
58
pvPortMalloc(size_t xWantedSize)59 void * pvPortMalloc( size_t xWantedSize )
60 {
61 void * pvReturn;
62
63 vTaskSuspendAll();
64 {
65 pvReturn = malloc( xWantedSize );
66 traceMALLOC( pvReturn, xWantedSize );
67 }
68 ( void ) xTaskResumeAll();
69
70 #if ( configUSE_MALLOC_FAILED_HOOK == 1 )
71 {
72 if( pvReturn == NULL )
73 {
74 vApplicationMallocFailedHook();
75 }
76 }
77 #endif
78
79 return pvReturn;
80 }
81 /*-----------------------------------------------------------*/
82
vPortFree(void * pv)83 void vPortFree( void * pv )
84 {
85 if( pv != NULL )
86 {
87 vTaskSuspendAll();
88 {
89 free( pv );
90 traceFREE( pv, 0 );
91 }
92 ( void ) xTaskResumeAll();
93 }
94 }
95
