1 files changed, 109 insertions, 0 deletions
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h
new file mode 100644
index 000000000000..eacc99a012db
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+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h
@@ -0,0 +1,109 @@
+//===-- GDBRemoteCommunicationServerPlatform.h ------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GDBRemoteCommunicationServerPlatform_h_
+#define liblldb_GDBRemoteCommunicationServerPlatform_h_
+
+#include <map>
+#include <mutex>
+#include <set>
+
+#include "GDBRemoteCommunicationServerCommon.h"
+#include "lldb/Host/Socket.h"
+
+namespace lldb_private {
+namespace process_gdb_remote {
+
+class GDBRemoteCommunicationServerPlatform
+    : public GDBRemoteCommunicationServerCommon {
+public:
+  typedef std::map<uint16_t, lldb::pid_t> PortMap;
+
+  GDBRemoteCommunicationServerPlatform(
+      const Socket::SocketProtocol socket_protocol, const char *socket_scheme);
+
+  ~GDBRemoteCommunicationServerPlatform() override;
+
+  Status LaunchProcess() override;
+
+  // Set both ports to zero to let the platform automatically bind to
+  // a port chosen by the OS.
+  void SetPortMap(PortMap &&port_map);
+
+  // If we are using a port map where we can only use certain ports,
+  // get the next available port.
+  //
+  // If we are using a port map and we are out of ports, return UINT16_MAX
+  //
+  // If we aren't using a port map, return 0 to indicate we should bind to
+  // port 0 and then figure out which port we used.
+  uint16_t GetNextAvailablePort();
+
+  bool AssociatePortWithProcess(uint16_t port, lldb::pid_t pid);
+
+  bool FreePort(uint16_t port);
+
+  bool FreePortForProcess(lldb::pid_t pid);
+
+  void SetPortOffset(uint16_t port_offset);
+
+  void SetInferiorArguments(const lldb_private::Args &args);
+
+  Status LaunchGDBServer(const lldb_private::Args &args, std::string hostname,
+                         lldb::pid_t &pid, uint16_t &port,
+                         std::string &socket_name);
+
+  void SetPendingGdbServer(lldb::pid_t pid, uint16_t port,
+                           const std::string &socket_name);
+
+protected:
+  const Socket::SocketProtocol m_socket_protocol;
+  const std::string m_socket_scheme;
+  std::recursive_mutex m_spawned_pids_mutex;
+  std::set<lldb::pid_t> m_spawned_pids;
+
+  PortMap m_port_map;
+  uint16_t m_port_offset;
+  struct {
+    lldb::pid_t pid;
+    uint16_t port;
+    std::string socket_name;
+  } m_pending_gdb_server;
+
+  PacketResult Handle_qLaunchGDBServer(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_qQueryGDBServer(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_qKillSpawnedProcess(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_qProcessInfo(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_qGetWorkingDir(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_QSetWorkingDir(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_qC(StringExtractorGDBRemote &packet);
+
+  PacketResult Handle_jSignalsInfo(StringExtractorGDBRemote &packet);
+
+private:
+  bool KillSpawnedProcess(lldb::pid_t pid);
+
+  bool DebugserverProcessReaped(lldb::pid_t pid);
+
+  static const FileSpec &GetDomainSocketDir();
+
+  static FileSpec GetDomainSocketPath(const char *prefix);
+
+  DISALLOW_COPY_AND_ASSIGN(GDBRemoteCommunicationServerPlatform);
+};
+
+} // namespace process_gdb_remote
+} // namespace lldb_private
+
+#endif // liblldb_GDBRemoteCommunicationServerPlatform_h_