/**
* @file
*
* @ingroup RTEMSScore
*
* @brief This source file contains the implementation of
* rtems_configuration_get_stack_space_size().
*/
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2014, 2019 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/config.h>
#include <rtems/score/stack.h>
#include <rtems/score/tls.h>
#include <rtems/score/thread.h>
uintptr_t rtems_configuration_get_stack_space_size( void )
{
uintptr_t space_size;
space_size = _Stack_Space_size;
/*
* In case we have a non-zero TLS size, then we need a TLS area for each
* thread. These areas are allocated within the stack area from the stack
* space. Ensure that the stack space is large enough to fulfill all requests
* known at configuration time (so excluding the unlimited option). It is not
* possible to estimate the TLS size in the configuration at compile-time.
* The TLS size is determined at application link-time.
*/
space_size += _Thread_Initial_thread_count * _TLS_Get_allocation_size();
return space_size;
}
