45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
|
/*
|
||
|
|
* arch/xtensa/include/asm/stacktrace.h
|
||
|
|
*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001 - 2013 Tensilica Inc.
|
||
|
|
*/
|
||
|
|
#ifndef _XTENSA_STACKTRACE_H
|
||
|
|
#define _XTENSA_STACKTRACE_H
|
||
|
|
|
||
|
|
#include <linux/sched.h>
|
||
|
|
|
||
|
|
struct stackframe {
|
||
|
|
unsigned long pc;
|
||
|
|
unsigned long sp;
|
||
|
|
};
|
||
|
|
|
||
|
|
static __always_inline unsigned long *stack_pointer(struct task_struct *task)
|
||
|
|
{
|
||
|
|
unsigned long sp;
|
||
|
|
|
||
|
|
if (!task || task == current)
|
||
|
|
sp = current_stack_pointer;
|
||
|
|
else
|
||
|
|
sp = task->thread.sp;
|
||
|
|
|
||
|
|
return (unsigned long *)sp;
|
||
|
|
}
|
||
|
|
|
||
|
|
void walk_stackframe(unsigned long *sp,
|
||
|
|
int (*fn)(struct stackframe *frame, void *data),
|
||
|
|
void *data);
|
||
|
|
|
||
|
|
void xtensa_backtrace_kernel(struct pt_regs *regs, unsigned int depth,
|
||
|
|
int (*kfn)(struct stackframe *frame, void *data),
|
||
|
|
int (*ufn)(struct stackframe *frame, void *data),
|
||
|
|
void *data);
|
||
|
|
void xtensa_backtrace_user(struct pt_regs *regs, unsigned int depth,
|
||
|
|
int (*ufn)(struct stackframe *frame, void *data),
|
||
|
|
void *data);
|
||
|
|
|
||
|
|
#endif /* _XTENSA_STACKTRACE_H */
|