/*-
* Copyright (c) 2005, Kohsuke Ohtani
* 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.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/*
* trap.c - called from the trap handler when a processor trap occurs.
*/
#include <kernel.h>
#include <exception.h>
#include <thread.h>
#include <task.h>
#include <cpu.h>
#ifdef DEBUG
void trap_dump(struct cpu_regs *);
static char *const trap_name[] = {
"Reset",
"Undefined instruction",
"Software interrupt",
"Prefetch abort",
"Data abort",
"Reserved",
"IRQ",
"FIQ",
};
#define MAXTRAP (sizeof(trap_name) / sizeof(void *) - 1)
#endif /* DEBUG */
/*
* Trap/exception mapping table.
* ARM exception is translated to the architecture
* independent exception code.
*/
static const int exception_map[] = {
0,
SIGILL, /* Undefined instruction */
0,
SIGSEGV, /* Prefech abort */
SIGSEGV, /* Data abort */
0,
0,
};
/*
* TODO: Need to implement trap code
*/