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[compilers/newlib] 在 syscalls.c 增加 __errno () 函数实现，解决在使用 newlib 编译时 errno 无法重定向到 _rt_errno 的问题

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Signed-off-by: MurphyZhao <d2014zjt@163.com>
This commit is contained in:
MurphyZhao 2019-04-11 14:21:05 +08:00
parent ec6118d46a
commit 9596a94a8b
1 changed files with 8 additions and 0 deletions
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8
components/libc/compilers/newlib/syscalls.c
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@ -27,6 +27,14 @@
/* Reentrant versions of system calls. */ /* Reentrant versions of system calls. */
#ifndef _REENT_ONLY
int *
__errno ()
{
return _rt_errno();
}
#endif
int int
_close_r(struct _reent *ptr, int fd) _close_r(struct _reent *ptr, int fd)
{ {