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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @brief CPU Initialize Context
*/
/*
* Copyright (c) 2011 Sebastian Huber. All rights reserved.
*
* 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 <string.h>
#include <rtems/score/armv7m.h>
#include <rtems/score/thread.h>
#include <rtems/score/tls.h>
#ifdef ARM_MULTILIB_ARCH_V7M
void _CPU_Context_Initialize(
Context_Control *context,
void *stack_area_begin,
size_t stack_area_size,
uint32_t new_level,
void (*entry_point)( void ),
bool is_fp,
void *tls_area
)
{
char *stack_area_end = (char *) stack_area_begin + stack_area_size;
memset(context, 0, sizeof(*context));
context->register_lr = entry_point;
context->register_sp = stack_area_end;
if ( tls_area != NULL ) {
_TLS_TCB_at_area_begin_initialize( tls_area );
}
}
#endif /* ARM_MULTILIB_ARCH_V7M */
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