{
  global:
    extern "C++" {
      OHOS::HiviewDFX::Get*;
      OHOS::HiviewDFX::PrintBacktrace*;
      OHOS::HiviewDFX::BacktraceLocalThread::BacktraceLocalThread*;
      OHOS::HiviewDFX::BacktraceLocalThread::Unwind*;
      OHOS::HiviewDFX::BacktraceLocalThread::GetFrames*;
      OHOS::HiviewDFX::BacktraceLocalThread::~BacktraceLocalThread*;
      OHOS::HiviewDFX::BacktraceLocalThread::GetFormattedStr*;
      OHOS::HiviewDFX::DfxGetKernelStack*;
      OHOS::HiviewDFX::FormatThreadKernelStack*;
      OHOS::HiviewDFX::FormatProcessKernelStack*;
    };
    extern "C" {
      PrintTrace*;
      GetTrace*;
    };
  local:
    *;
};