1#ifndef __ASM_STACKTRACE_H
 2#define __ASM_STACKTRACE_H
 3
 
 
 4struct stackframe {
 
 
 
 
 5	unsigned long fp;
 6	unsigned long sp;
 7	unsigned long lr;
 8	unsigned long pc;
 9};
 
 
 
 
 
 
 
 
 
10
11extern int unwind_frame(struct stackframe *frame);
12extern void walk_stackframe(struct stackframe *frame,
13			    int (*fn)(struct stackframe *, void *), void *data);
14
15#endif	/* __ASM_STACKTRACE_H */

 1#ifndef __ASM_STACKTRACE_H
 2#define __ASM_STACKTRACE_H
 3
 4#include <asm/ptrace.h>
 5
 6struct stackframe {
 7	/*
 8	 * FP member should hold R7 when CONFIG_THUMB2_KERNEL is enabled
 9	 * and R11 otherwise.
10	 */
11	unsigned long fp;
12	unsigned long sp;
13	unsigned long lr;
14	unsigned long pc;
15};
16
17static __always_inline
18void arm_get_current_stackframe(struct pt_regs *regs, struct stackframe *frame)
19{
20		frame->fp = frame_pointer(regs);
21		frame->sp = regs->ARM_sp;
22		frame->lr = regs->ARM_lr;
23		frame->pc = regs->ARM_pc;
24}
25
26extern int unwind_frame(struct stackframe *frame);
27extern void walk_stackframe(struct stackframe *frame,
28			    int (*fn)(struct stackframe *, void *), void *data);
29
30#endif	/* __ASM_STACKTRACE_H */