C++ StreamGDBRemote类代码示例

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerPlatform::Handle_qQueryGDBServer(
    StringExtractorGDBRemote &packet) {
  if (m_pending_gdb_server.pid == LLDB_INVALID_PROCESS_ID)
    return SendErrorResponse(4);

  JSONObject::SP server_sp = std::make_shared<JSONObject>();
  server_sp->SetObject("port",
                       std::make_shared<JSONNumber>(m_pending_gdb_server.port));
  if (!m_pending_gdb_server.socket_name.empty())
    server_sp->SetObject(
        "socket_name",
        std::make_shared<JSONString>(m_pending_gdb_server.socket_name.c_str()));

  JSONArray server_list;
  server_list.AppendObject(server_sp);

  StreamGDBRemote response;
  server_list.Write(response);

  StreamGDBRemote escaped_response;
  escaped_response.PutEscapedBytes(response.GetString().data(),
                                   response.GetSize());
  return SendPacketNoLock(escaped_response.GetString());
}

TEST_F(GDBRemoteClientBaseTest, SendContinueDelegateStructuredDataReceipt) {
  // Build the plain-text version of the JSON data we will have the
  // server send.
  const std::string json_payload =
      "{ \"type\": \"MyFeatureType\", "
      "  \"elements\": [ \"entry1\", \"entry2\" ] }";
  const std::string json_packet = "JSON-async:" + json_payload;

  // Escape it properly for transit.
  StreamGDBRemote stream;
  stream.PutEscapedBytes(json_packet.c_str(), json_packet.length());
  stream.Flush();

  StringExtractorGDBRemote response;

  // Send async structured data packet, then stop.
  ASSERT_EQ(PacketResult::Success, server.SendPacket(stream.GetData()));
  ASSERT_EQ(PacketResult::Success, server.SendPacket("T01"));
  ASSERT_EQ(eStateStopped, SendCPacket(response));
  ASSERT_EQ("T01", response.GetStringRef());
  ASSERT_EQ(1ul, delegate.structured_data_packets.size());

  // Verify the packet contents.  It should have been unescaped upon packet
  // reception.
  ASSERT_EQ(json_packet, delegate.structured_data_packets[0]);
}

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir(
    StringExtractorGDBRemote &packet) {
  packet.SetFilePos(::strlen("qPlatform_mkdir:"));
  mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
  if (packet.GetChar() == ',') {
    std::string path;
    packet.GetHexByteString(path);
    Error error = FileSystem::MakeDirectory(FileSpec{path, false}, mode);

    StreamGDBRemote response;
    response.Printf("F%u", error.GetError());

    return SendPacketNoLock(response.GetString());
  }
  return SendErrorResponse(20);
}

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServer::Handle_vFile_MD5 (StringExtractorGDBRemote &packet)
{
    packet.SetFilePos(::strlen("vFile:MD5:"));
    std::string path;
    packet.GetHexByteString(path);
    if (!path.empty())
    {
        uint64_t a,b;
        StreamGDBRemote response;
        if (Host::CalculateMD5(FileSpec(path.c_str(),false),a,b) == false)
        {
            response.PutCString("F,");
            response.PutCString("x");
        }
        else
        {
            response.PutCString("F,");
            response.PutHex64(a);
            response.PutHex64(b);
        }
        return SendPacketNoLock(response.GetData(), response.GetSize());
    }
    return SendErrorResponse(25);
}

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet)
{
#ifdef _WIN32
    return SendErrorResponse(9);
#else
    // Spawn a local debugserver as a platform so we can then attach or launch
    // a process...

    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
    if (log)
        log->Printf ("GDBRemoteCommunicationServerPlatform::%s() called", __FUNCTION__);

    ConnectionFileDescriptor file_conn;
    std::string hostname;
    packet.SetFilePos(::strlen ("qLaunchGDBServer;"));
    std::string name;
    std::string value;
    uint16_t port = UINT16_MAX;
    while (packet.GetNameColonValue(name, value))
    {
        if (name.compare ("host") == 0)
            hostname.swap(value);
        else if (name.compare ("port") == 0)
            port = StringConvert::ToUInt32(value.c_str(), 0, 0);
    }

    lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID;
    std::string socket_name;
    Error error = LaunchGDBServer(Args(), hostname, debugserver_pid, port, socket_name);
    if (error.Fail())
    {
        if (log)
            log->Printf("GDBRemoteCommunicationServerPlatform::%s() debugserver launch failed: %s", __FUNCTION__, error.AsCString ());
        return SendErrorResponse(9);
    }

    if (log)
        log->Printf ("GDBRemoteCommunicationServerPlatform::%s() debugserver launched successfully as pid %" PRIu64, __FUNCTION__, debugserver_pid);

    StreamGDBRemote response;
    response.Printf("pid:%" PRIu64 ";port:%u;", debugserver_pid, port + m_port_offset);
    if (!socket_name.empty())
    {
        response.PutCString("socket_name:");
        response.PutCStringAsRawHex8(socket_name.c_str());
        response.PutChar(';');
    }

    PacketResult packet_result = SendPacketNoLock(response.GetData(), response.GetSize());
    if (packet_result != PacketResult::Success)
    {
        if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
            ::kill (debugserver_pid, SIGINT);
    }
    return packet_result;
#endif
}

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod (StringExtractorGDBRemote &packet)
{
    packet.SetFilePos(::strlen("qPlatform_chmod:"));

    mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
    if (packet.GetChar() == ',')
    {
        std::string path;
        packet.GetHexByteString(path);
        Error error = FileSystem::SetFilePermissions(FileSpec{path, true}, mode);

        StreamGDBRemote response;
        response.Printf("F%u", error.GetError());

        return SendPacketNoLock(response.GetData(), response.GetSize());
    }
    return SendErrorResponse(19);
}

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite(
    StringExtractorGDBRemote &packet) {
#ifdef _WIN32
  return SendUnimplementedResponse("GDBRemoteCommunicationServerCommon::Handle_"
                                   "vFile_pWrite() unimplemented");
#else
  packet.SetFilePos(::strlen("vFile:pwrite:"));

  StreamGDBRemote response;
  response.PutChar('F');

  int fd = packet.GetU32(UINT32_MAX);
  if (packet.GetChar() == ',') {
    off_t offset = packet.GetU64(UINT32_MAX);
    if (packet.GetChar() == ',') {
      std::string buffer;
      if (packet.GetEscapedBinaryData(buffer)) {
        const ssize_t bytes_written =
            ::pwrite(fd, buffer.data(), buffer.size(), offset);
        const int save_errno = bytes_written == -1 ? errno : 0;
        response.Printf("%zi", bytes_written);
        if (save_errno)
          response.Printf(",%i", save_errno);
      } else {
        response.Printf("-1,%i", EINVAL);
      }
      return SendPacketNoLock(response.GetString());
    }
  }
  return SendErrorResponse(27);
#endif
}

GDBRemoteCommunication::PacketResult
GDBRemoteCommunicationServerCommon::Handle_qModuleInfo(
    StringExtractorGDBRemote &packet) {
  packet.SetFilePos(::strlen("qModuleInfo:"));

  std::string module_path;
  packet.GetHexByteStringTerminatedBy(module_path, ';');
  if (module_path.empty())
    return SendErrorResponse(1);

  if (packet.GetChar() != ';')
    return SendErrorResponse(2);

  std::string triple;
  packet.GetHexByteString(triple);

  ModuleSpec matched_module_spec = GetModuleInfo(module_path, triple);
  if (!matched_module_spec.GetFileSpec())
    return SendErrorResponse(3);

  const auto file_offset = matched_module_spec.GetObjectOffset();
  const auto file_size = matched_module_spec.GetObjectSize();
  const auto uuid_str = matched_module_spec.GetUUID().GetAsString("");

  StreamGDBRemote response;

  if (uuid_str.empty()) {
    std::string md5_hash;
    if (!FileSystem::CalculateMD5AsString(matched_module_spec.GetFileSpec(),
                                          file_offset, file_size, md5_hash))
      return SendErrorResponse(5);
    response.PutCString("md5:");
    response.PutCStringAsRawHex8(md5_hash.c_str());
  } else {
    response.PutCString("uuid:");
    response.PutCStringAsRawHex8(uuid_str.c_str());
  }
  response.PutChar(';');

  const auto &module_arch = matched_module_spec.GetArchitecture();
  response.PutCString("triple:");
  response.PutCStringAsRawHex8(module_arch.GetTriple().getTriple().c_str());
  response.PutChar(';');

  response.PutCString("file_path:");
  response.PutCStringAsRawHex8(matched_module_spec.GetFileSpec().GetCString());
  response.PutChar(';');
  response.PutCString("file_offset:");
  response.PutHex64(file_offset);
  response.PutChar(';');
  response.PutCString("file_size:");
  response.PutHex64(file_size);
  response.PutChar(';');

  return SendPacketNoLock(response.GetString());
}