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Commit dc39455e authored by Kyle McMartin's avatar Kyle McMartin
Browse files

[PARISC] clean up show_stack 



When we show_regs, we obviously have a struct pt_regs of the calling
frame. Use these in show_stack so we don't have the entire bogus call trace
up to the show_stack call.

Signed-off-by: default avatarKyle McMartin <kyle@mcmartin.ca>
parent b23f5baa

arch/parisc/kernel/traps.c

+21 −4
Original line number Diff line number Diff line
@@ -51,6 +51,9 @@ 
DEFINE_SPINLOCK(pa_dbit_lock);

#endif



void parisc_show_stack(struct task_struct *t, unsigned long *sp,

	struct pt_regs *regs);



static int printbinary(char *buf, unsigned long x, int nbits)

{

	unsigned long mask = 1UL << (nbits - 1);
@@ -149,7 +152,7 @@ void show_regs(struct pt_regs *regs) 
	printk(level);

	print_symbol(" RP(r2): %s\n", regs->gr[2]);



	dump_stack();

	parisc_show_stack(current, NULL, regs);

}
@@ -183,11 +186,19 @@ static void do_show_stack(struct unwind_frame_info *info) 
	printk("\n");

}



void show_stack(struct task_struct *task, unsigned long *s)

void parisc_show_stack(struct task_struct *task, unsigned long *sp,

	struct pt_regs *regs)

{

	struct unwind_frame_info info;

	struct task_struct *t;



	t = task ? task : current;

	if (regs) {

		unwind_frame_init(&info, t, regs);

		goto show_stack;

	}



	if (!task) {

	if (t == current) {

		unsigned long sp;



HERE:
@@ -203,12 +214,18 @@ void show_stack(struct task_struct *task, unsigned long *s) 
			unwind_frame_init(&info, current, &r);

		}

	} else {

		unwind_frame_init_from_blocked_task(&info, task);

		unwind_frame_init_from_blocked_task(&info, t);

	}



show_stack:

	do_show_stack(&info);

}



void show_stack(struct task_struct *t, unsigned long *sp)

{

	return parisc_show_stack(t, sp, NULL);

}



int is_valid_bugaddr(unsigned long iaoq)

{

	return 1;