89 lines
3.0 KiB
C
89 lines
3.0 KiB
C
/* vector_table.c - populated exception vector table */
|
|
|
|
/*
|
|
* Copyright (c) 2014 Wind River Systems, Inc.
|
|
*
|
|
* 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.
|
|
*
|
|
* 3) Neither the name of Wind River Systems nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* 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 HOLDER 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.
|
|
*/
|
|
|
|
/*
|
|
DESCRIPTION
|
|
Vector table with exceptions filled in. The reset vector is the system entry
|
|
point, ie. the first instruction executed.
|
|
|
|
The table is populated with all the system exception handlers. No exception
|
|
should not be triggered until the kernel is ready to handle them.
|
|
|
|
We are using a C file instead of an assembly file (like the ARM vector table)
|
|
to work around an issue with the assembler where:
|
|
|
|
.word <function>
|
|
|
|
statements would end up with the two half-words of the functions' addresses
|
|
swapped.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <toolchain.h>
|
|
#include "vector_table.h"
|
|
|
|
struct vector_table {
|
|
uint32_t reset;
|
|
uint32_t memory_error;
|
|
uint32_t instruction_error;
|
|
uint32_t ev_machine_check;
|
|
uint32_t ev_tlb_miss_i;
|
|
uint32_t ev_tlb_miss_d;
|
|
uint32_t ev_prot_v;
|
|
uint32_t ev_privilege_v;
|
|
uint32_t ev_swi;
|
|
uint32_t ev_trap;
|
|
uint32_t ev_extension;
|
|
uint32_t ev_div_zero;
|
|
uint32_t ev_dc_error;
|
|
uint32_t ev_maligned;
|
|
};
|
|
|
|
struct vector_table _VectorTable _GENERIC_SECTION(.exc_vector_table) = {
|
|
(uint32_t)__reset,
|
|
(uint32_t)__memory_error,
|
|
(uint32_t)__instruction_error,
|
|
(uint32_t)__ev_machine_check,
|
|
(uint32_t)__ev_tlb_miss_i,
|
|
(uint32_t)__ev_tlb_miss_d,
|
|
(uint32_t)__ev_prot_v,
|
|
(uint32_t)__ev_privilege_v,
|
|
(uint32_t)__ev_swi,
|
|
(uint32_t)__ev_trap,
|
|
(uint32_t)__ev_extension,
|
|
(uint32_t)__ev_div_zero,
|
|
(uint32_t)__ev_dc_error,
|
|
(uint32_t)__ev_maligned,
|
|
};
|
|
|
|
extern struct vector_table __start _ALIAS_OF(_VectorTable);
|