cpukit/libdl/rtl-alloc-heap.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup rtems_rtl
0007  *
0008  * @brief RTEMS Run-Time Linker Allocator for the standard heap.
0009  */
0010
0011 /*
0012  *  COPYRIGHT (c) 2012,2023 Chris Johns <chrisj@rtems.org>
0013  *
0014  * Redistribution and use in source and binary forms, with or without
0015  * modification, are permitted provided that the following conditions
0016  * are met:
0017  * 1. Redistributions of source code must retain the above copyright
0018  *    notice, this list of conditions and the following disclaimer.
0019  * 2. Redistributions in binary form must reproduce the above copyright
0020  *    notice, this list of conditions and the following disclaimer in the
0021  *    documentation and/or other materials provided with the distribution.
0022  *
0023  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0024  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0025  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0026  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0027  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0028  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0029  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0030  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0031  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0032  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0033  * POSSIBILITY OF SUCH DAMAGE.
0034  */
0035
0036 #include <stdlib.h>
0037
0038 #include "rtl-alloc-heap.h"
0039
0040 #include <rtems/score/apimutex.h>
0041
0042 void
0043 rtems_rtl_alloc_heap (rtems_rtl_alloc_cmd cmd,
0044                       rtems_rtl_alloc_tag tag,
0045                       void**              address,
0046                       size_t              size)
0047 {
0048   switch (cmd)
0049   {
0050     case RTEMS_RTL_ALLOC_NEW:
0051       *address = malloc (size);
0052       break;
0053     case RTEMS_RTL_ALLOC_DEL:
0054       free (*address);
0055       *address = NULL;
0056       break;
0057     case RTEMS_RTL_ALLOC_RESIZE:
0058       *address = realloc (*address, size);
0059       break;
0060     case RTEMS_RTL_ALLOC_LOCK:
0061       _RTEMS_Lock_allocator();
0062       break;
0063     case RTEMS_RTL_ALLOC_UNLOCK:
0064       _RTEMS_Unlock_allocator();
0065       break;
0066     default:
0067       break;
0068   }
0069 }