| 1234567891011121314151617181920212223242526272829303132333435363738394041424344 |
- /*
- * 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)
- __asm__ __volatile__ ("mov %0, a1\n" : "=a"(sp));
- else
- sp = (unsigned long *)task->thread.sp;
- return 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 */
|
