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Diffstat (limited to 'arch/microblaze/cpu/exception.c')
-rw-r--r--arch/microblaze/cpu/exception.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/arch/microblaze/cpu/exception.c b/arch/microblaze/cpu/exception.c
index 227842f..aa34f45 100644
--- a/arch/microblaze/cpu/exception.c
+++ b/arch/microblaze/cpu/exception.c
@@ -13,49 +13,52 @@ void _hw_exception_handler (void)
{
int address = 0;
int state = 0;
+
/* loading address of exception EAR */
- MFS (address, rear);
+ MFS(address, rear);
/* loading excetpion state register ESR */
- MFS (state, resr);
- printf ("Hardware exception at 0x%x address\n", address);
+ MFS(state, resr);
+ printf("Hardware exception at 0x%x address\n", address);
+ R17(address);
+ printf("Return address from exception 0x%x\n", address);
switch (state & 0x1f) { /* mask on exception cause */
case 0x1:
- puts ("Unaligned data access exception\n");
+ puts("Unaligned data access exception\n");
break;
case 0x2:
- puts ("Illegal op-code exception\n");
+ puts("Illegal op-code exception\n");
break;
case 0x3:
- puts ("Instruction bus error exception\n");
+ puts("Instruction bus error exception\n");
break;
case 0x4:
- puts ("Data bus error exception\n");
+ puts("Data bus error exception\n");
break;
case 0x5:
- puts ("Divide by zero exception\n");
+ puts("Divide by zero exception\n");
break;
#ifdef MICROBLAZE_V5
case 0x7:
puts("Priviledged or stack protection violation exception\n");
break;
case 0x1000:
- puts ("Exception in delay slot\n");
+ puts("Exception in delay slot\n");
break;
#endif
default:
- puts ("Undefined cause\n");
+ puts("Undefined cause\n");
break;
}
- printf ("Unaligned %sword access\n", ((state & 0x800) ? "" : "half"));
- printf ("Unaligned %s access\n", ((state & 0x400) ? "store" : "load"));
- printf ("Register R%x\n", (state & 0x3E) >> 5);
- hang ();
+ printf("Unaligned %sword access\n", ((state & 0x800) ? "" : "half"));
+ printf("Unaligned %s access\n", ((state & 0x400) ? "store" : "load"));
+ printf("Register R%x\n", (state & 0x3E) >> 5);
+ hang();
}
#ifdef CONFIG_SYS_USR_EXCEP
void _exception_handler (void)
{
- puts ("User vector_exception\n");
- hang ();
+ puts("User vector_exception\n");
+ hang();
}
#endif