25 int notrace unwind_frame(struct stackframe *frame)  in unwind_frame()  argument
28 	unsigned long fp = frame->fp;  in unwind_frame()
31 	low = frame->sp;  in unwind_frame()
39 	frame->fp = *(unsigned long *)(fp - 12);  in unwind_frame()
40 	frame->sp = *(unsigned long *)(fp - 8);  in unwind_frame()
41 	frame->pc = *(unsigned long *)(fp - 4);  in unwind_frame()
47 void notrace walk_stackframe(struct stackframe *frame,  in walk_stackframe()  argument
53 		if (fn(frame, data))  in walk_stackframe()
55 		ret = unwind_frame(frame);  in walk_stackframe()
70 static int save_trace(struct stackframe *frame, void *d)  in save_trace()  argument
75 	unsigned long addr = frame->pc;  in save_trace()
97 	data->last_pc = frame->pc;  in save_trace()
101 	regs = (struct pt_regs *)frame->sp;  in save_trace()
113 	struct stackframe frame;  in __save_stack_trace()  local
131 		frame.fp = thread_saved_fp(tsk);  in __save_stack_trace()
132 		frame.sp = thread_saved_sp(tsk);  in __save_stack_trace()
133 		frame.lr = 0;		/* recovered from the stack */  in __save_stack_trace()
134 		frame.pc = thread_saved_pc(tsk);  in __save_stack_trace()
139 		frame.fp = (unsigned long)__builtin_frame_address(0);  in __save_stack_trace()
140 		frame.sp = current_stack_pointer;  in __save_stack_trace()
141 		frame.lr = (unsigned long)__builtin_return_address(0);  in __save_stack_trace()
142 		frame.pc = (unsigned long)__save_stack_trace;  in __save_stack_trace()
145 	walk_stackframe(&frame, save_trace, &data);  in __save_stack_trace()
153 	struct stackframe frame;  in save_stack_trace_regs()  local
159 	frame.fp = regs->ARM_fp;  in save_stack_trace_regs()
160 	frame.sp = regs->ARM_sp;  in save_stack_trace_regs()
161 	frame.lr = regs->ARM_lr;  in save_stack_trace_regs()
162 	frame.pc = regs->ARM_pc;  in save_stack_trace_regs()
164 	walk_stackframe(&frame, save_trace, &data);  in save_stack_trace_regs()