forked from xuos/xiuos
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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*/
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/**
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* @file mem_syscalls.c
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* @brief support newlib memory
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* @version 1.0
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* @author AIIT XUOS Lab
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* @date 2020-09-23
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*/
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/*************************************************
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File name: mem_syscalls.c
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Description: support newlib memory
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Others: take RT-Thread v4.0.2/components/libc/compilers/newlib/syscalls.c for references
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https://github.com/RT-Thread/rt-thread/tree/v4.0.2
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History:
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1. Date: 2020-09-23
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Author: AIIT XUOS Lab
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Modification: Use malloc, realloc, calloc and free functions
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*************************************************/
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/* wwg debug here */
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// #include <xizi.h>
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#include <errno.h>
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void *_malloc_r (struct _reent *ptr, size_t size)
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{
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/* wwg debug here */
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// void* result = (void*)x_malloc(size);
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void* result = NULL;
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if (result == NULL)
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{
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ptr->_errno = ENOMEM;
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}
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return result;
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}
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void *_realloc_r (struct _reent *ptr, void *old, size_t newlen)
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{
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/* wwg debug here */
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// void* result = (void*)x_realloc(old, newlen);
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void* result = NULL;
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if (result == NULL)
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{
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ptr->_errno = ENOMEM;
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}
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return result;
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}
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void *_calloc_r (struct _reent *ptr, size_t size, size_t len)
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{
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/* wwg debug here */
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// void* result = (void*)x_calloc(size, len);
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void* result = NULL;
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if (result == NULL)
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{
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ptr->_errno = ENOMEM;
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}
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return result;
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}
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void _free_r (struct _reent *ptr, void *address)
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{
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/* wwg debug here */
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// x_free (address);
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} |