38 int notrace unwind_frame(struct stackframe *frame)  in unwind_frame()  argument
41 	unsigned long fp = frame->fp;  in unwind_frame()
43 	low  = frame->sp;  in unwind_frame()
49 	frame->sp = fp + 0x10;  in unwind_frame()
50 	frame->fp = *(unsigned long *)(fp);  in unwind_frame()
51 	frame->pc = *(unsigned long *)(fp + 8);  in unwind_frame()
56 void notrace walk_stackframe(struct stackframe *frame,  in walk_stackframe()  argument
62 		if (fn(frame, data))  in walk_stackframe()
64 		ret = unwind_frame(frame);  in walk_stackframe()
78 static int save_trace(struct stackframe *frame, void *d)  in save_trace()  argument
82 	unsigned long addr = frame->pc;  in save_trace()
99 	struct stackframe frame;  in save_stack_trace_tsk()  local
106 		frame.fp = thread_saved_fp(tsk);  in save_stack_trace_tsk()
107 		frame.sp = thread_saved_sp(tsk);  in save_stack_trace_tsk()
108 		frame.pc = thread_saved_pc(tsk);  in save_stack_trace_tsk()
111 		frame.fp = (unsigned long)__builtin_frame_address(0);  in save_stack_trace_tsk()
112 		frame.sp = current_stack_pointer;  in save_stack_trace_tsk()
113 		frame.pc = (unsigned long)save_stack_trace_tsk;  in save_stack_trace_tsk()
116 	walk_stackframe(&frame, save_trace, &data);  in save_stack_trace_tsk()