62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/****************************************************************************
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* sched/errno/lib_errno.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sched.h>
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#include <errno.h>
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#include <arch/tls.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: __errno
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*
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* Description:
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* Return a pointer to the thread specific errno.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* A pointer to the per-thread errno variable.
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*
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* Assumptions:
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*
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****************************************************************************/
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FAR int *__errno(void)
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{
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/* Get the TLS tls_info_s structure instance for this thread */
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FAR struct tls_info_s *tlsinfo = up_tls_info();
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/* And return the return refernce to the error number */
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return &tlsinfo->tl_errno;
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}
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