4bd97c6535
Merge the x1000 and jz47xx exception handling code since they use the same exception vectors and handlers. The interrupt handler is now called from the common exception vector, but remains separate for each board since they have different IRQ layouts. The new exception handler can provide a stack traceback from the interrupted code, rather than the (uninteresting) caller traceback displayed by panicf. This allows you to see what led up to a null pointer deref or division by zero, which makes it _much_ easier to track down errors that occur in common leaf functions like strcmp. Change-Id: I59a0ebb5e40fcb36505c3bfdb47f8cac2f9936b1
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2022 Aidan MacDonald
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef SYSTEM_MIPS_H
|
|
#define SYSTEM_MIPS_H
|
|
|
|
#include <stdint.h>
|
|
|
|
struct mips_exception_frame {
|
|
uint32_t gpr[29]; /* GPRs $1-$25, $28-$31 */
|
|
uint32_t lo;
|
|
uint32_t hi;
|
|
uint32_t c0_status;
|
|
uint32_t c0_epc;
|
|
};
|
|
|
|
void intr_handler(void);
|
|
void exception_handler(void* frame, unsigned long epc);
|
|
void cache_error_handler(void* frame, unsigned long epc);
|
|
void tlb_refill_handler(void* frame, unsigned long epc);
|
|
|
|
#endif /* SYSTEM_MIPS_H */
|