27 __weak void perf_callchain_kernel(struct perf_callchain_entry *entry,  in perf_callchain_kernel()  argument
32 __weak void perf_callchain_user(struct perf_callchain_entry *entry,  in perf_callchain_user()  argument
163 	struct perf_callchain_entry *entry;  in perf_callchain()  local
171 	entry = get_callchain_entry(&rctx);  in perf_callchain()
175 	if (!entry)  in perf_callchain()
178 	entry->nr = 0;  in perf_callchain()
181 		perf_callchain_store(entry, PERF_CONTEXT_KERNEL);  in perf_callchain()
182 		perf_callchain_kernel(entry, regs);  in perf_callchain()
200 			perf_callchain_store(entry, PERF_CONTEXT_USER);  in perf_callchain()
201 			perf_callchain_user(entry, regs);  in perf_callchain()
208 	return entry;  in perf_callchain()