rt-thread-official/components/libc/compilers/picolibc/syscall.c

/*
 * Copyright (c) 2006-2023, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2023-05-17     Flybreak     the first version
 */

#include <rtthread.h>
#include <sys/types.h>

/* global errno */
static volatile int __pico_errno;

int *pico_get_errno(void)
{
    rt_thread_t tid = RT_NULL;

    if (rt_interrupt_get_nest() != 0)
    {
        /* it's in interrupt context */
        return (int *)&__pico_errno;
    }

    tid = rt_thread_self();
    if (tid == RT_NULL)
    {
        return (int *)&__pico_errno;
    }

    return (int *)&tid->error;
}

#ifdef RT_USING_HEAP
void *malloc(size_t n)
{
    return rt_malloc(n);
}
RTM_EXPORT(malloc);

void *realloc(void *rmem, size_t newsize)
{
    return rt_realloc(rmem, newsize);
}
RTM_EXPORT(realloc);

void *calloc(size_t nelem, size_t elsize)
{
    return rt_calloc(nelem, elsize);
}
RTM_EXPORT(calloc);

void free(void *rmem)
{
    rt_free(rmem);
}
RTM_EXPORT(free);
#endif /* RT_USING_HEAP */