/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSScoreISR
*
* @brief This source file contains the definition of ::_ISR_Vector_table and
* the implementation of _ISR_Handler_initialization().
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* 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/score/isr.h>
#include <rtems/score/address.h>
#include <rtems/score/percpu.h>
#include <rtems/config.h>
void _ISR_Handler_initialization( void )
{
uint32_t cpu_max;
uint32_t cpu_index;
size_t stack_size;
char *stack_low;
stack_size = rtems_configuration_get_interrupt_stack_size();
cpu_max = rtems_configuration_get_maximum_processors();
stack_low = _ISR_Stack_area_begin;
for ( cpu_index = 0 ; cpu_index < cpu_max; ++cpu_index ) {
Per_CPU_Control *cpu;
char *stack_high;
cpu = _Per_CPU_Get_by_index( cpu_index );
stack_high = _Addresses_Add_offset( stack_low, stack_size );
cpu->interrupt_stack_low = stack_low;
cpu->interrupt_stack_high = stack_high;
/*
* Interrupt stack might have to be aligned and/or setup in a specific
* way. Do not use the local low or high variables here since
* _CPU_Interrupt_stack_setup() is a nasty macro that might want to play
* with the real memory locations.
*/
#if defined(_CPU_Interrupt_stack_setup)
_CPU_Interrupt_stack_setup(
cpu->interrupt_stack_low,
cpu->interrupt_stack_high
);
#endif
stack_low = stack_high;
}
}
