92   unwindstack::Unwinder* unwinder = UnwindHelper::Get(Thread::Current(), max_depth_)->Unwinder();  in Collect()  local
93   if (!CollectImpl(unwinder)) {  in Collect()
98     if (!any_changed || !CollectImpl(unwinder)) {  in Collect()
100         std::vector<unwindstack::FrameData>& frames = unwinder->frames();  in Collect()
101         LOG(ERROR) << "Failed to unwind stack (error " << unwinder->LastErrorCodeString() << "):";  in Collect()
115 bool BacktraceCollector::CollectImpl(unwindstack::Unwinder* unwinder) {  in CollectImpl()  argument
118   unwinder->SetRegs(regs.get());  in CollectImpl()
119   unwinder->Unwind();  in CollectImpl()
122   if (unwinder->NumFrames() > skip_count_) {  in CollectImpl()
123     for (auto it = unwinder->frames().begin() + skip_count_; it != unwinder->frames().end(); ++it) {  in CollectImpl()
148   unwindstack::ErrorCode error = unwinder->LastErrorCode();  in CollectImpl()