X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Fxtensa%2Fkernel%2Ftraps.c;h=01e0111bf787f610ac004c976aaf585a3928e5d6;hb=96680d2b9174668100824d763382240c71baa811;hp=5caf2b64d43ac846c7a0c148166c54877dec8178;hpb=18e170d03bcd17f5ccb35b271a95783f63145be7;p=karo-tx-linux.git

diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 5caf2b64d43a..01e0111bf787 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -293,6 +293,17 @@ do_debug(struct pt_regs *regs)
 }
 
 
+/* Set exception C handler - for temporary use when probing exceptions */
+
+void * __init trap_set_handler(int cause, void *handler)
+{
+	unsigned long *entry = &exc_table[EXC_TABLE_DEFAULT / 4 + cause];
+	void *previous = (void *)*entry;
+	*entry = (unsigned long)handler;
+	return previous;
+}
+
+
 /*
  * Initialize dispatch tables.
  *
@@ -397,7 +408,8 @@ static inline void spill_registers(void)
 		"wsr	a13, sar\n\t"
 		"wsr	a14, ps\n\t"
 		:: "a" (&a0), "a" (&ps)
-		: "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15", "memory");
+		: "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15",
+		  "memory");
 }
 
 void show_trace(struct task_struct *task, unsigned long *sp)
@@ -452,7 +464,7 @@ void show_stack(struct task_struct *task, unsigned long *sp)
 
 	if (!sp)
 		sp = stack_pointer(task);
- 	stack = sp;
+	stack = sp;
 
 	printk("\nStack: ");
 
@@ -523,5 +535,3 @@ void die(const char * str, struct pt_regs * regs, long err)
 
 	do_exit(err);
 }
-
-