source: rtems/c/src/lib/libbsp/m68k/gen68340/startup/dumpanic.c @ cd67dca

4.104.114.84.95
Last change on this file since cd67dca was 08311cc3, checked in by Joel Sherrill <joel.sherrill@…>, on 11/17/99 at 17:51:34

Updated copyright notice.

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File size: 5.0 KB
Line 
1/*
2 *  M68340/349 registers and stack dump if an exception is raised
3 *
4 *  Author:
5 *  Pascal Cadic
6 *  France Telecom - CNET/DSM/TAM/CAT
7 *  4, rue du Clos Courtel
8 *  35512 CESSON-SEVIGNE
9 *  FRANCE
10 *
11 *  COPYRIGHT (c) 1989-1999.
12 *  On-Line Applications Research Corporation (OAR).
13 *
14 *  The license and distribution terms for this file may be
15 *  found in the file LICENSE in this distribution or at
16 *
17 *  http://www.OARcorp.com/rtems/license.html.
18 *
19 *  $Id$
20 */
21
22#include <stdio.h>
23
24const char *exceptionName[] =
25        {
26        "INITIAL STACK POINTER",
27        "INITIAL PROGRAM COUNTER",
28        "BUS ERROR",
29        "ADDRESS ERROR",
30        "ILLEGAL INSTRUCTION",
31        "DIVISION BY ZERO",
32        "CHK, CHK2",
33        "TRAPcc, TRAPv",
34        "PRIVILEGE VIOLATION",
35        "TRACE",
36        "LINE A EMULATOR",
37        "LINE F EMULATOR",
38        "HARDWARE BREAK",
39        "COPROCESSOR PROTOCOL VIOLATION",
40        "FORMAT ERROR",
41        "UNINITIALIZED INTERRUPT",
42        "RESERVED 16",
43        "RESERVED 17",
44        "RESERVED 18",
45        "RESERVED 19",
46        "RESERVED 20",
47        "RESERVED 21",
48        "RESERVED 22",
49        "RESERVED 23",
50        "SPURIOUS INTERRUPT",
51        "LEVEL 1 AUTOVECTOR",
52        "LEVEL 2 AUTOVECTOR",
53        "LEVEL 3 AUTOVECTOR",
54        "LEVEL 4 AUTOVECTOR",
55        "LEVEL 5 AUTOVECTOR",
56        "LEVEL 6 AUTOVECTOR",
57        "LEVEL 7 AUTOVECTOR",
58        "TRAP 1",
59        "TRAP 2",
60        "TRAP 3",
61        "TRAP 4",
62        "TRAP 5",
63        "TRAP 6",
64        "TRAP 7",
65        "TRAP 8",
66        "TRAP 9",
67        "TRAP 10",
68        "TRAP 11",
69        "TRAP 12",
70        "TRAP 13",
71        "TRAP 14",
72        "TRAP 15",
73        "VECTOR 48",
74        "VECTOR 49",
75        "VECTOR 50",
76        "VECTOR 51",
77        "VECTOR 52",
78        "VECTOR 53",
79        "VECTOR 54",
80        "VECTOR 55",
81        "VECTOR 56",
82        "VECTOR 57",
83        "VECTOR 58",
84        "VECTOR 59",
85        "VECTOR 60",
86        "VECTOR 61",
87        "VECTOR 62",
88        "VECTOR 63",
89        };
90
91typedef struct {
92    unsigned long       pc;
93    unsigned short      sr;
94    unsigned short      format_id;
95    unsigned long       d0, d1, d2, d3, d4, d5, d6, d7;
96    unsigned long       a0, a1, a2, a3, a4, a5, a6, a7;
97    unsigned long       sfc, dfc, vbr;
98} boot_panic_registers_t;
99
100boot_panic_registers_t _boot_panic_registers;
101
102extern void RAW_FMT( int minor, const char* fmt, ... );
103extern char RAW_GETC(int minor);
104
105/******************************************************
106  Name: _dbug_dump
107  Input parameters: sr, pc, stack pointer,
108                    size to display
109  Output parameters: -
110  Description: display the supervisor stack
111 *****************************************************/
112void _dbug_dump(unsigned short sr, void* pc, unsigned short *stack, int size)
113{
114int i;
115
116        RAW_FMT(0,"%x : %x \t%x",0,sr,(unsigned short)(((unsigned)pc)>>16));
117        for (i=2; i<size; i++) {
118                if ((i%8)==0) RAW_FMT(0,"\n%x :",i/8);
119                RAW_FMT(0," %x\t",stack[i-2]);
120        }
121        RAW_FMT(0,"\n");
122}
123
124/******************************************************
125  Name: _dbug_dump
126  Input parameters: -
127  Output parameters: -
128  Description: display microcontroler state. Registers
129               values are stored in _boot_panic_registers
130               which is filled in _uhoh ASM routine
131 *****************************************************/
132void _dbug_dumpanic(void)
133{
134 int c;
135 void *faultedAddr, *pc;
136 unsigned short vector, status;
137 unsigned char frametype, *stack;
138 #define ESCAPE 27
139
140        stack = (unsigned char*)(_boot_panic_registers.a7);
141        do {
142                status = _boot_panic_registers.sr;
143                pc = (void*)_boot_panic_registers.pc;
144                faultedAddr = *(void**)(stack+4);
145                vector = (_boot_panic_registers.format_id&0x0FFF)>>2;
146                frametype = (_boot_panic_registers.format_id&0xF000)>>12;
147
148                RAW_FMT(0,"\n---------------------------------------------\n");
149                if (vector<64)
150                        RAW_FMT(0,"%s",exceptionName[vector]);
151                else {
152                        RAW_FMT(0,"RESERVED USER");
153                }
154                RAW_FMT(0," exception (vector %x, type %x)\n",vector,frametype);
155                RAW_FMT(0,"---------------------------------------------\n");
156                RAW_FMT(0,"PC : 0x%x  ",pc);
157                RAW_FMT(0,"A7 : 0x%x  ",_boot_panic_registers.a7);
158                RAW_FMT(0,"SR : 0x%x\n",status);
159                if (frametype==0x0c) {
160                        RAW_FMT(0,"\nfaulted address = 0x%x\n",faultedAddr);
161                }
162                RAW_FMT(0,"---------------------------------------------\n");
163                RAW_FMT(0,"               panic regs\n");
164                RAW_FMT(0,"---------------------------------------------\n");
165                RAW_FMT(0,"D[0..3] : %x \t%x \t%x \t%x\n",
166                                _boot_panic_registers.d0,_boot_panic_registers.d1,
167                                _boot_panic_registers.d2,_boot_panic_registers.d3);
168                RAW_FMT(0,"D[4..7] : %x \t%x \t%x \t%x\n",
169                                _boot_panic_registers.d4,_boot_panic_registers.d5,
170                                _boot_panic_registers.d6,_boot_panic_registers.d7);
171                RAW_FMT(0,"A[0..3] : %x \t%x \t%x \t%x\n",
172                                _boot_panic_registers.a0,_boot_panic_registers.a1,
173                                _boot_panic_registers.a2,_boot_panic_registers.a3);
174                RAW_FMT(0,"A[4..7] : %x \t%x \t%x \t%x\n",
175                                _boot_panic_registers.a4,_boot_panic_registers.a5,
176                                _boot_panic_registers.a6,_boot_panic_registers.a7);
177
178                RAW_FMT(0,"    SFC : %x",_boot_panic_registers.sfc);
179                RAW_FMT(0,"    DFC : %x\n",_boot_panic_registers.dfc);
180                RAW_FMT(0,"    VBR : %x\n",_boot_panic_registers.vbr);
181                RAW_FMT(0,"---------------------------------------------\n");
182                RAW_FMT(0,"               panic stack\n");
183                RAW_FMT(0,"---------------------------------------------\n");
184                _dbug_dump(status, pc, (unsigned short*)stack,64*2);
185
186                RAW_FMT(0,"---------------------------------------------\n");
187                RAW_FMT(0,"press escape to reboot\n");
188        } while ((c=RAW_GETC(0))!=ESCAPE);      /* cgets ne marche pas si les IT sont bloquées */
189}
190
191
192
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