forked from Imagelibrary/rtems
93afcff7b5
Directly initialize the memory in the start sequence defined by start.S instead of using a system initialization handler. This avoids using the global variable rdb_start which used a memory location which was shared with _ERC32_MEC_Timer_Control_Mirror. This change makes it possible to use _Memory_Allocate() even before the system initialization is started. Change license to BSD-2-Clause according to file history and re-licensing agreement. Update #3053.
57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
/**
|
|
* @file
|
|
*
|
|
* @ingroup RTEMSScoreMemory
|
|
*
|
|
* @brief This source file contains an implementation of _Memory_Get().
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (C) 2019, 2021 embedded brains GmbH
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <bsp.h>
|
|
|
|
#include <rtems/score/memory.h>
|
|
|
|
/* This function is called only by the start sequence defined in start.S */
|
|
void _SPARC_Memory_initialize( void *end_of_usable_ram );
|
|
|
|
static Memory_Area _Memory_Areas[ 1 ];
|
|
|
|
static const Memory_Information _Memory_Information =
|
|
MEMORY_INFORMATION_INITIALIZER( _Memory_Areas );
|
|
|
|
void _SPARC_Memory_initialize( void *end_of_usable_ram )
|
|
{
|
|
_Memory_Initialize( &_Memory_Areas[ 0 ], &end, end_of_usable_ram );
|
|
}
|
|
|
|
const Memory_Information *_Memory_Get( void )
|
|
{
|
|
return &_Memory_Information;
|
|
}
|