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/**************************************************************************
*
* Copyright (c) 2013 Alcatel-Lucent
*
* Alcatel Lucent licenses this file to You under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. A copy of the License is contained the
* file LICENSE at the top level of this repository.
* You may also obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**************************************************************************
*
* FILENAME_HERE
*
* DESCRIPTION_HERE
*
* Original author: Ed Sutter (ed.sutter@alcatel-lucent.com)
*
*/
#include "config.h"
#include "arm.h"
#include "stddefs.h"
#include "genlib.h"
#include "warmstart.h"
ulong ExceptionAddr;
int ExceptionType;
#define PRIx32 "lx"
#define PRIxPTR "lx"
/* Taken from RTEMS cpukit/score/cpu/arm/arm-exception-frame-print.c */
static void _CPU_Exception_frame_print( const CPU_Exception_frame *frame )
{
printf(
"\n"
"R0 = 0x%08" PRIx32 " R8 = 0x%08" PRIx32 "\n"
"R1 = 0x%08" PRIx32 " R9 = 0x%08" PRIx32 "\n"
"R2 = 0x%08" PRIx32 " R10 = 0x%08" PRIx32 "\n"
"R3 = 0x%08" PRIx32 " R11 = 0x%08" PRIx32 "\n"
"R4 = 0x%08" PRIx32 " R12 = 0x%08" PRIx32 "\n"
"R5 = 0x%08" PRIx32 " SP = 0x%08" PRIx32 "\n"
"R6 = 0x%08" PRIx32 " LR = 0x%08" PRIxPTR "\n"
"R7 = 0x%08" PRIx32 " PC = 0x%08" PRIxPTR "\n"
"VEC = 0x%08" PRIxPTR "\n",
frame->register_r0,
frame->register_r8,
frame->register_r1,
frame->register_r9,
frame->register_r2,
frame->register_r10,
frame->register_r3,
frame->register_r11,
frame->register_r4,
frame->register_r12,
frame->register_r5,
frame->register_sp,
frame->register_r6,
(uint32_t) frame->register_lr,
frame->register_r7,
(uint32_t) frame->register_pc,
(uint32_t) frame->vector
);
}
/***********************************************************************
*
* umon_exception()
* Default exception handler used by the low level code in vectors_arm.S.
*/
void
umon_exception(CPU_Exception_frame *frame)
{
_CPU_Exception_frame_print(frame);
ExceptionAddr = (uint32_t) frame->register_pc;
ExceptionType = frame->vector;
monrestart(EXCEPTION);
}
/***********************************************************************
*
* ExceptionType2String():
* This function simply returns a string that verbosely describes
* the incoming exception type (vector number).
*/
char *
ExceptionType2String(int type)
{
char *string;
switch(type) {
case EXCTYPE_UNDEF:
string = "Undefined instruction";
break;
case EXCTYPE_ABORTP:
string = "Abort prefetch";
break;
case EXCTYPE_ABORTD:
string = "Abort data";
break;
case EXCTYPE_IRQ:
string = "IRQ";
break;
case EXCTYPE_FIRQ:
string = "Fast IRQ";
break;
case EXCTYPE_NOTASSGN:
string = "Not assigned";
break;
case EXCTYPE_SWI:
string = "Software Interrupt";
break;
default:
string = "???";
break;
}
return(string);
}
void
vinit(void)
{
}
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