diff options
Diffstat (limited to 'bsps/m68k/gen68340/start/dumpanic.c')
| -rw-r--r-- | bsps/m68k/gen68340/start/dumpanic.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/bsps/m68k/gen68340/start/dumpanic.c b/bsps/m68k/gen68340/start/dumpanic.c new file mode 100644 index 0000000000..7f82ab3a77 --- /dev/null +++ b/bsps/m68k/gen68340/start/dumpanic.c @@ -0,0 +1,190 @@ +/* + * M68340/349 registers and stack dump if an exception is raised + */ + +/* + * Author: + * Pascal Cadic + * France Telecom - CNET/DSM/TAM/CAT + * 4, rue du Clos Courtel + * 35512 CESSON-SEVIGNE + * FRANCE + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp.h> +#include <rtems/bspIo.h> + +const char *exceptionName[] = { + "INITIAL STACK POINTER", + "INITIAL PROGRAM COUNTER", + "BUS ERROR", + "ADDRESS ERROR", + "ILLEGAL INSTRUCTION", + "DIVISION BY ZERO", + "CHK, CHK2", + "TRAPcc, TRAPv", + "PRIVILEGE VIOLATION", + "TRACE", + "LINE A EMULATOR", + "LINE F EMULATOR", + "HARDWARE BREAK", + "COPROCESSOR PROTOCOL VIOLATION", + "FORMAT ERROR", + "UNINITIALIZED INTERRUPT", + "RESERVED 16", + "RESERVED 17", + "RESERVED 18", + "RESERVED 19", + "RESERVED 20", + "RESERVED 21", + "RESERVED 22", + "RESERVED 23", + "SPURIOUS INTERRUPT", + "LEVEL 1 AUTOVECTOR", + "LEVEL 2 AUTOVECTOR", + "LEVEL 3 AUTOVECTOR", + "LEVEL 4 AUTOVECTOR", + "LEVEL 5 AUTOVECTOR", + "LEVEL 6 AUTOVECTOR", + "LEVEL 7 AUTOVECTOR", + "TRAP 1", + "TRAP 2", + "TRAP 3", + "TRAP 4", + "TRAP 5", + "TRAP 6", + "TRAP 7", + "TRAP 8", + "TRAP 9", + "TRAP 10", + "TRAP 11", + "TRAP 12", + "TRAP 13", + "TRAP 14", + "TRAP 15", + "VECTOR 48", + "VECTOR 49", + "VECTOR 50", + "VECTOR 51", + "VECTOR 52", + "VECTOR 53", + "VECTOR 54", + "VECTOR 55", + "VECTOR 56", + "VECTOR 57", + "VECTOR 58", + "VECTOR 59", + "VECTOR 60", + "VECTOR 61", + "VECTOR 62", + "VECTOR 63", + }; + +typedef struct { + unsigned long pc; + unsigned short sr; + unsigned short format_id; + unsigned long d0, d1, d2, d3, d4, d5, d6, d7; + unsigned long a0, a1, a2, a3, a4, a5, a6, a7; + unsigned long sfc, dfc, vbr; +} boot_panic_registers_t; + +boot_panic_registers_t _boot_panic_registers; + +/****************************************************** + Name: _dbug_dump + Input parameters: sr, pc, stack pointer, + size to display + Output parameters: - + Description: display the supervisor stack + *****************************************************/ +static void _dbug_dump( + unsigned short sr, + void* pc, + unsigned short *stack, + int size +) +{ + int i; + + printk("%x : %x \t%x",0,sr,(unsigned short)(((unsigned)pc)>>16)); + for (i=2; i<size; i++) { + if ((i%8)==0) printk("\n%x :",i/8); + printk(" %x\t",stack[i-2]); + } + printk("\n"); +} + +/****************************************************** + Name: _dbug_dump + Input parameters: - + Output parameters: - + Description: display microcontroler state. Registers + values are stored in _boot_panic_registers + which is filled in _uhoh ASM routine + *****************************************************/ +void _dbug_dumpanic(void) +{ + int c; + void *faultedAddr, *pc; + unsigned short vector, status; + unsigned char frametype, *stack; + #define ESCAPE 27 + + stack = (unsigned char*)(_boot_panic_registers.a7); + do { + status = _boot_panic_registers.sr; + pc = (void*)_boot_panic_registers.pc; + faultedAddr = *(void**)(stack+4); + vector = (_boot_panic_registers.format_id&0x0FFF)>>2; + frametype = (_boot_panic_registers.format_id&0xF000)>>12; + + printk("\n---------------------------------------------\n"); + if (vector<64) + printk("%s",exceptionName[vector]); + else { + printk("RESERVED USER"); + } + printk(" exception (vector %x, type %x)\n",vector,frametype); + printk("---------------------------------------------\n"); + printk("PC : %p ",pc); + printk("A7 : 0x%lx ",_boot_panic_registers.a7); + printk("SR : 0x%x\n",status); + if (frametype==0x0c) { + printk("\nfaulted address = %p\n",faultedAddr); + } + printk("---------------------------------------------\n"); + printk(" panic regs\n"); + printk("---------------------------------------------\n"); + printk("D[0..3] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.d0,_boot_panic_registers.d1, + _boot_panic_registers.d2,_boot_panic_registers.d3); + printk("D[4..7] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.d4,_boot_panic_registers.d5, + _boot_panic_registers.d6,_boot_panic_registers.d7); + printk("A[0..3] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.a0,_boot_panic_registers.a1, + _boot_panic_registers.a2,_boot_panic_registers.a3); + printk("A[4..7] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.a4,_boot_panic_registers.a5, + _boot_panic_registers.a6,_boot_panic_registers.a7); + + printk(" SFC : %lx",_boot_panic_registers.sfc); + printk(" DFC : %lx\n",_boot_panic_registers.dfc); + printk(" VBR : %lx\n",_boot_panic_registers.vbr); + printk("---------------------------------------------\n"); + printk(" panic stack\n"); + printk("---------------------------------------------\n"); + _dbug_dump(status, pc, (unsigned short*)stack,64*2); + + printk("---------------------------------------------\n"); + printk("press escape to reboot\n"); + } while ((c=getchark())!=ESCAPE); +} |