rtems/confdefs/newlib.h

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSImplApplConfig
0007  *
0008  * @brief This header file evaluates configuration options related to the
0009  *   Newlib C Library configuration.
0010  *
0011  * This header file defines _CONFIGURE_ENABLE_NEWLIB_REENTRANCY for use by other
0012  * configuration header files.
0013  */
0014
0015 /*
0016  * Copyright (C) 2020 embedded brains GmbH & Co. KG
0017  *
0018  * Redistribution and use in source and binary forms, with or without
0019  * modification, are permitted provided that the following conditions
0020  * are met:
0021  * 1. Redistributions of source code must retain the above copyright
0022  *    notice, this list of conditions and the following disclaimer.
0023  * 2. Redistributions in binary form must reproduce the above copyright
0024  *    notice, this list of conditions and the following disclaimer in the
0025  *    documentation and/or other materials provided with the distribution.
0026  *
0027  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0028  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0029  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0030  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0031  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0032  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0033  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0034  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0035  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0036  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0037  * POSSIBILITY OF SUCH DAMAGE.
0038  */
0039
0040 #ifndef _RTEMS_CONFDEFS_NEWLIB_H
0041 #define _RTEMS_CONFDEFS_NEWLIB_H
0042
0043 #ifndef __CONFIGURATION_TEMPLATE_h
0044 #error "Do not include this file directly, use <rtems/confdefs.h> instead"
0045 #endif
0046
0047 #ifdef CONFIGURE_INIT
0048
0049 #if defined(RTEMS_NEWLIB) && !defined(CONFIGURE_DISABLE_NEWLIB_REENTRANCY)
0050   #include <rtems/score/percpu.h>
0051   #include <rtems/score/thread.h>
0052   #include <sys/reent.h>
0053   #define _CONFIGURE_ENABLE_NEWLIB_REENTRANCY
0054 #endif
0055
0056 #ifdef __cplusplus
0057 extern "C" {
0058 #endif
0059
0060 #if defined(_CONFIGURE_ENABLE_NEWLIB_REENTRANCY) && \
0061   !defined(_REENT_THREAD_LOCAL)
0062   struct _reent *__getreent( void )
0063   {
0064     return _Thread_Get_executing()->libc_reent;
0065   }
0066 #endif
0067
0068 #ifdef __cplusplus
0069 }
0070 #endif
0071
0072 #endif /* CONFIGURE_INIT */
0073
0074 #endif /* _RTEMS_CONFDEFS_NEWLIB_H */