{
  global:
    extern "C++" {
        "OHOS::HiviewDFX::HiTraceChain::GetId()";
        "OHOS::HiviewDFX::HiTraceId::IsValid() const";
        "OHOS::HiviewDFX::HiTraceId::GetChainId() const";
        "OHOS::HiviewDFX::HiTraceId::GetSpanId() const";
        "OHOS::HiviewDFX::HiTraceId::GetParentSpanId() const";
        "OHOS::HiviewDFX::HiTraceId::GetFlags() const";
        "OHOS::HiviewDFX::HiTraceId::IsFlagEnabled(HiTraceFlag) const";
        "OHOS::HiviewDFX::HiTraceChain::Tracepoint(HiTraceTracepointType, OHOS::HiviewDFX::HiTraceId const&, char const*, ...)";
        "OHOS::HiviewDFX::HiTraceChain::SetId(OHOS::HiviewDFX::HiTraceId const&)";
        "OHOS::HiviewDFX::HiTraceChain::ClearId()";
        "OHOS::HiviewDFX::HiTraceChain::CreateSpan()";
        "OHOS::HiviewDFX::HiTraceId::ToBytes(unsigned char*, int) const";
        "OHOS::HiviewDFX::HiTraceId::HiTraceId(unsigned char const*, int)";
        "OHOS::HiviewDFX::HiTraceChain::Begin(std::__h::basic_string<char, std::__h::char_traits<char>, std::__h::allocator<char>> const&, int)";
        "OHOS::HiviewDFX::HiTraceId::HiTraceId()";
        "OHOS::HiviewDFX::HiTraceChain::End(OHOS::HiviewDFX::HiTraceId const&)";
        "OHOS::HiviewDFX::HiTraceChain::Tracepoint(HiTraceCommunicationMode, HiTraceTracepointType, OHOS::HiviewDFX::HiTraceId const&, char const*, ...)";
        "OHOS::HiviewDFX::HiTraceId::EnableFlag(HiTraceFlag)";
        "OHOS::HiviewDFX::HiTraceId::SetChainId(unsigned long long)";
        "OHOS::HiviewDFX::HiTraceId::SetChainId(unsigned long)";
        "OHOS::HiviewDFX::HiTraceId::SetSpanId(unsigned long long)";
        "OHOS::HiviewDFX::HiTraceId::SetSpanId(unsigned long)";
        "OHOS::HiviewDFX::HiTraceId::SetParentSpanId(unsigned long long)";
        "OHOS::HiviewDFX::HiTraceId::SetParentSpanId(unsigned long)";
        "OHOS::HiviewDFX::HiTraceId::SetFlags(int)";
    };
  extern "C" {
        "HiTraceChainTracepointInner";
        "HiTraceChainBegin";
        "HiTraceChainEnd";
        "HiTraceChainGetId";
        "HiTraceChainSetId";
        "HiTraceChainClearId";
        "HiTraceChainCreateSpan";
  };
  local:
    *;
};