Meco Man 7732f8618b [picolibc] fix the errno declaration conflict
/home/runner/work/rt-thread/rt-thread/components/libc/compilers/picolibc/syscall.c:13:5: error: conflicting types for 'pico_get_errno'
  int pico_get_errno(void)
      ^
  /opt/LLVMEmbeddedToolchainForArm-16.0.0-Linux-x86_64/bin/../lib/clang-runtimes/arm-none-eabi/armv7em_hard_fpv4_sp_d16/include/sys/errno.h:59:6: note: previous declaration is here
  int *__PICOLIBC_ERRNO_FUNCTION(void);
2023-09-19 23:02:43 -04:00

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