902aa29b62
Split out Gunar Schorcht's clever approach to provide thread safe malloc for AVR into a system module and make AVR depend on this. This allows other platforms to also use this.
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/*
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* Copyright (C) 2019 Gunar Schorcht
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @{
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*
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* @file
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* @brief Implements various POSIX syscalls
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* @author Gunar Schorcht <gunar@schorcht.net>
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*/
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#include "irq.h"
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extern void *__real_malloc(size_t size);
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extern void __real_free(void *ptr);
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extern void *__real_calloc(size_t nmemb, size_t size);
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extern void *__real_realloc(void *ptr, size_t size);
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void *__wrap_malloc(size_t size)
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{
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unsigned state = irq_disable();
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void *ptr = __real_malloc(size);
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irq_restore(state);
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return ptr;
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}
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void __wrap_free(void *ptr)
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{
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unsigned state = irq_disable();
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__real_free(ptr);
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irq_restore(state);
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}
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void *__wrap_calloc(size_t nmemb, size_t size)
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{
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unsigned state = irq_disable();
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void *ptr = __real_calloc(nmemb, size);
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irq_restore(state);
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return ptr;
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}
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void *__wrap_realloc(void *ptr, size_t size)
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{
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unsigned state = irq_disable();
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void *new = __real_realloc(ptr, size);
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irq_restore(state);
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return new;
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}
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/** @} */
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