283 BPF_CALL_3(bpf_get_stackid, struct pt_regs *, regs, struct bpf_map *, map,  in BPF_CALL_3()  argument
300 	trace = get_perf_callchain(regs, 0, kernel, user, max_depth,  in BPF_CALL_3()
342 		return bpf_get_stackid((unsigned long)(ctx->regs),  in BPF_CALL_3()
388 static long __bpf_get_stack(struct pt_regs *regs, struct task_struct *task,  in __bpf_get_stack()  argument
414 	if (task && user && !user_mode(regs))  in __bpf_get_stack()
435 		trace = get_perf_callchain(regs, 0, kernel, user, max_depth,  in __bpf_get_stack()
464 BPF_CALL_4(bpf_get_stack, struct pt_regs *, regs, void *, buf, u32, size,  in BPF_CALL_4()  argument
467 	return __bpf_get_stack(regs, NULL, NULL, buf, size, flags);  in BPF_CALL_4()
483 	struct pt_regs *regs;  in BPF_CALL_4()  local
489 	regs = task_pt_regs(task);  in BPF_CALL_4()
490 	if (regs)  in BPF_CALL_4()
491 		res = __bpf_get_stack(regs, task, NULL, buf, size, flags);  in BPF_CALL_4()
511 	struct pt_regs *regs = (struct pt_regs *)(ctx->regs);  in BPF_CALL_4()  local
519 		return __bpf_get_stack(regs, NULL, NULL, buf, size, flags);  in BPF_CALL_4()
539 		err = __bpf_get_stack(regs, NULL, trace, buf, size, flags);  in BPF_CALL_4()
551 		err = __bpf_get_stack(regs, NULL, trace, buf, size, flags);  in BPF_CALL_4()