Method writeStackTraces

src/flightRecorder.cpp:932–961

    }

    void writeStackTraces(Buffer* buf, Lookup* lookup) {
        std::map<u32, CallTrace*> traces;
        Profiler::instance()->_call_trace_storage.collectTraces(traces);

        writePoolHeader(buf, T_STACK_TRACE, traces.size());
        for (std::map<u32, CallTrace*>::const_iterator it = traces.begin(); it != traces.end(); ++it) {
            CallTrace* trace = it->second;
            buf->putVar32(it->first);
            buf->putVar32(0);  // truncated
            buf->putVar32(trace->num_frames);
            for (int i = 0; i < trace->num_frames; i++) {
                MethodInfo* mi = lookup->resolveMethod(trace->frames[i]);
                buf->putVar32(mi->_key);
                if (mi->_type == FRAME_INTERPRETED) {
                    jint bci = trace->frames[i].bci;
                    FrameTypeId type = FrameType::decode(bci);
                    bci = (bci & 0x10000) ? 0 : (bci & 0xffff);
                    buf->putVar32(mi->getLineNumber(bci));
                    buf->putVar32(bci);
                    buf->put8(type);
                } else {
                    buf->put8(0);
                    buf->put8(0);
                    buf->put8(mi->_type);
                }
                flushIfNeeded(buf);
            }
            flushIfNeeded(buf);
        }
    }

    void writeMethods(Buffer* buf, Lookup* lookup) {
        MethodMap* method_map = lookup->_method_map;