| 99 | } |
| 100 | |
| 101 | void TaskTracer::Result::OutputToStream(std::ostream& os) const { |
| 102 | char symbol_name[128]; |
| 103 | char unknown_symbol_name[] = "<unknown>"; |
| 104 | if (frame_count > 0) { |
| 105 | for (size_t i = 0; i < frame_count; ++i) { |
| 106 | os << "# " << i << " 0x" << std::hex << ips[i] << std::dec << " "; |
| 107 | if (absl::Symbolize(ips[i], symbol_name, arraysize(symbol_name))) { |
| 108 | os << symbol_name; |
| 109 | } else { |
| 110 | os << unknown_symbol_name; |
| 111 | } |
| 112 | if (i + 1 < frame_count) { |
| 113 | os << '\n'; |
| 114 | } |
| 115 | } |
| 116 | } else { |
| 117 | os << "No frame"; |
| 118 | } |
| 119 | if (error) { |
| 120 | os << "\nError message: " << err_msg; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | bool TaskTracer::Init() { |
| 125 | if (_trace_time.expose("bthread_trace_time") != 0) { |
no outgoing calls