Import LLDB as of upstream SVN 241361 (git 612c075f)vendor/lldb/lldb-r241361

1 files changed, 24 insertions, 499 deletions

diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
index dcf07844527e..992c6dffaf54 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
@@ -12,236 +12,53 @@
 
 // C Includes
 // C++ Includes
-#include <vector>
-#include <set>
-#include <unordered_map>
+#include <functional>
+#include <map>
+
 // Other libraries and framework includes
 // Project includes
 #include "lldb/lldb-private-forward.h"
-#include "lldb/Core/Communication.h"
-#include "lldb/Host/Mutex.h"
-#include "lldb/Target/Process.h"
 #include "GDBRemoteCommunication.h"
 
-#include "lldb/Host/common/NativeProcessProtocol.h"
+class StringExtractorGDBRemote;
+
+namespace lldb_private {
+namespace process_gdb_remote {
 
 class ProcessGDBRemote;
-class StringExtractorGDBRemote;
 
-class GDBRemoteCommunicationServer :
-    public GDBRemoteCommunication,
-    public lldb_private::NativeProcessProtocol::NativeDelegate
+class GDBRemoteCommunicationServer : public GDBRemoteCommunication
 {
 public:
-    typedef std::map<uint16_t, lldb::pid_t> PortMap;
-
-    enum
-    {
-        eBroadcastBitRunPacketSent = kLoUserBroadcastBit
-    };
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
-    GDBRemoteCommunicationServer(bool is_platform);
+    using PortMap = std::map<uint16_t, lldb::pid_t>;
+    using PacketHandler = std::function<PacketResult(StringExtractorGDBRemote &packet,
+                                                     Error &error,
+                                                     bool &interrupt,
+                                                     bool &quit)>;
 
-    GDBRemoteCommunicationServer(bool is_platform,
-                                 const lldb::PlatformSP& platform_sp,
-                                 lldb::DebuggerSP& debugger_sp);
+    GDBRemoteCommunicationServer(const char *comm_name,
+                                 const char *listener_name);
 
     virtual
     ~GDBRemoteCommunicationServer();
 
+    void RegisterPacketHandler(StringExtractorGDBRemote::ServerPacketType packet_type,
+                               PacketHandler handler);
+
     PacketResult
     GetPacketAndSendResponse (uint32_t timeout_usec,
-                              lldb_private::Error &error,
+                              Error &error,
                               bool &interrupt, 
                               bool &quit);
 
-    virtual bool
-    GetThreadSuffixSupported () override
-    {
-        return true;
-    }
-
     // After connecting, do a little handshake with the client to make sure
     // we are at least communicating
     bool
-    HandshakeWithClient (lldb_private::Error *error_ptr);
-
-    // Set both ports to zero to let the platform automatically bind to 
-    // a port chosen by the OS.
-    void
-    SetPortMap (PortMap &&port_map)
-    {
-        m_port_map = 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 ()
-    {
-        if (m_port_map.empty())
-            return 0; // Bind to port zero and get a port, we didn't have any limitations
-        
-        for (auto &pair : m_port_map)
-        {
-            if (pair.second == LLDB_INVALID_PROCESS_ID)
-            {
-                pair.second = ~(lldb::pid_t)LLDB_INVALID_PROCESS_ID;
-                return pair.first;
-            }
-        }
-        return UINT16_MAX;
-    }
-
-    bool
-    AssociatePortWithProcess (uint16_t port, lldb::pid_t pid)
-    {
-        PortMap::iterator pos = m_port_map.find(port);
-        if (pos != m_port_map.end())
-        {
-            pos->second = pid;
-            return true;
-        }
-        return false;
-    }
-
-    bool
-    FreePort (uint16_t port)
-    {
-        PortMap::iterator pos = m_port_map.find(port);
-        if (pos != m_port_map.end())
-        {
-            pos->second = LLDB_INVALID_PROCESS_ID;
-            return true;
-        }
-        return false;
-    }
-
-    bool
-    FreePortForProcess (lldb::pid_t pid)
-    {
-        if (!m_port_map.empty())
-        {
-            for (auto &pair : m_port_map)
-            {
-                if (pair.second == pid)
-                {
-                    pair.second = LLDB_INVALID_PROCESS_ID;
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-
-    void
-    SetPortOffset (uint16_t port_offset)
-    {
-        m_port_offset = port_offset;
-    }
-
-    //------------------------------------------------------------------
-    /// Specify the program to launch and its arguments.
-    ///
-    /// @param[in] args
-    ///     The command line to launch.
-    ///
-    /// @param[in] argc
-    ///     The number of elements in the args array of cstring pointers.
-    ///
-    /// @return
-    ///     An Error object indicating the success or failure of making
-    ///     the setting.
-    //------------------------------------------------------------------
-    lldb_private::Error
-    SetLaunchArguments (const char *const args[], int argc);
-
-    //------------------------------------------------------------------
-    /// Specify the launch flags for the process.
-    ///
-    /// @param[in] launch_flags
-    ///     The launch flags to use when launching this process.
-    ///
-    /// @return
-    ///     An Error object indicating the success or failure of making
-    ///     the setting.
-    //------------------------------------------------------------------
-    lldb_private::Error
-    SetLaunchFlags (unsigned int launch_flags);
-
-    //------------------------------------------------------------------
-    /// Launch a process with the current launch settings.
-    ///
-    /// This method supports running an lldb-gdbserver or similar
-    /// server in a situation where the startup code has been provided
-    /// with all the information for a child process to be launched.
-    ///
-    /// @return
-    ///     An Error object indicating the success or failure of the
-    ///     launch.
-    //------------------------------------------------------------------
-    lldb_private::Error
-    LaunchProcess ();
-
-    //------------------------------------------------------------------
-    /// Attach to a process.
-    ///
-    /// This method supports attaching llgs to a process accessible via the
-    /// configured Platform.
-    ///
-    /// @return
-    ///     An Error object indicating the success or failure of the
-    ///     attach operation.
-    //------------------------------------------------------------------
-    lldb_private::Error
-    AttachToProcess (lldb::pid_t pid);
-
-    //------------------------------------------------------------------
-    // NativeProcessProtocol::NativeDelegate overrides
-    //------------------------------------------------------------------
-    void
-    InitializeDelegate (lldb_private::NativeProcessProtocol *process) override;
-
-    void
-    ProcessStateChanged (lldb_private::NativeProcessProtocol *process, lldb::StateType state) override;
-
-    void
-    DidExec (lldb_private::NativeProcessProtocol *process) override;
+    HandshakeWithClient (Error *error_ptr);
 
 protected:
-    lldb::PlatformSP m_platform_sp;
-    lldb::thread_t m_async_thread;
-    lldb_private::ProcessLaunchInfo m_process_launch_info;
-    lldb_private::Error m_process_launch_error;
-    std::set<lldb::pid_t> m_spawned_pids;
-    lldb_private::Mutex m_spawned_pids_mutex;
-    lldb_private::ProcessInstanceInfoList m_proc_infos;
-    uint32_t m_proc_infos_index;
-    PortMap m_port_map;
-    uint16_t m_port_offset;
-    lldb::tid_t m_current_tid;
-    lldb::tid_t m_continue_tid;
-    lldb_private::Mutex m_debugged_process_mutex;
-    lldb_private::NativeProcessProtocolSP m_debugged_process_sp;
-    lldb::DebuggerSP m_debugger_sp;
-    Communication m_stdio_communication;
+    std::map<StringExtractorGDBRemote::ServerPacketType, PacketHandler> m_packet_handlers;
     bool m_exit_now; // use in asynchronous handling to indicate process should exit.
-    lldb::StateType m_inferior_prev_state;
-    bool m_thread_suffix_supported;
-    bool m_list_threads_in_stop_reply;
-    lldb::DataBufferSP m_active_auxv_buffer_sp;
-    lldb_private::Mutex m_saved_registers_mutex;
-    std::unordered_map<uint32_t, lldb::DataBufferSP> m_saved_registers_map;
-    uint32_t m_next_saved_registers_id;
 
     PacketResult
     SendUnimplementedResponse (const char *packet);
@@ -255,306 +72,14 @@ protected:
     PacketResult
     SendOKResponse ();
 
-    PacketResult
-    SendONotification (const char *buffer, uint32_t len);
-
-    PacketResult
-    SendWResponse (lldb_private::NativeProcessProtocol *process);
-
-    PacketResult
-    SendStopReplyPacketForThread (lldb::tid_t tid);
-
-    PacketResult
-    SendStopReasonForState (lldb::StateType process_state, bool flush_on_exit);
-
-    PacketResult
-    Handle_A (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qLaunchSuccess (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qHostInfo (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_k (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qPlatform_mkdir (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qPlatform_chmod (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qProcessInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qProcessInfoPID (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qfProcessInfo (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qsProcessInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qC (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qUserName (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qGroupName (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qSpeedTest (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QEnvironment  (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_QLaunchArch (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_QSetDisableASLR (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QSetDetachOnError (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QSetWorkingDir (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qGetWorkingDir (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QStartNoAckMode (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QSetSTDIN (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QSetSTDOUT (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QSetSTDERR (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_C (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_c (StringExtractorGDBRemote &packet, bool skip_file_pos_adjustment = false);
-
-    PacketResult
-    Handle_vCont (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vCont_actions (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_stop_reason (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_Open (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_Close (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_pRead (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_pWrite (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_Size (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_vFile_Mode (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_Exists (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_vFile_symlink (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_vFile_unlink (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vFile_Stat (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_vFile_MD5 (StringExtractorGDBRemote &packet);
-    
-    PacketResult
-    Handle_qPlatform_shell (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qRegisterInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qfThreadInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qsThreadInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_p (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_P (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_H (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_I (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_interrupt (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_m (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_M (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qMemoryRegionInfoSupported (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qMemoryRegionInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_Z (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_z (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_s (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qSupported (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QThreadSuffixSupported (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QListThreadsInStopReply (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qXfer_auxv_read (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QSaveRegisterState (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_QRestoreRegisterState (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_vAttach (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_D (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qThreadStopInfo (StringExtractorGDBRemote &packet);
-
-    PacketResult
-    Handle_qWatchpointSupportInfo (StringExtractorGDBRemote &packet);
-
-    void
-    SetCurrentThreadID (lldb::tid_t tid);
-
-    lldb::tid_t
-    GetCurrentThreadID () const;
-
-    void
-    SetContinueThreadID (lldb::tid_t tid);
-
-    lldb::tid_t
-    GetContinueThreadID () const { return m_continue_tid; }
-
-    lldb_private::Error
-    SetSTDIOFileDescriptor (int fd);
-
-    static void
-    STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len);
-
 private:
-    bool
-    DebugserverProcessReaped (lldb::pid_t pid);
-    
-    static bool
-    ReapDebugserverProcess (void *callback_baton,
-                            lldb::pid_t pid,
-                            bool exited,
-                            int signal,
-                            int status);
-
-    bool
-    DebuggedProcessReaped (lldb::pid_t pid);
-
-    static bool
-    ReapDebuggedProcess (void *callback_baton,
-                         lldb::pid_t pid,
-                         bool exited,
-                         int signal,
-                         int status);
-
-    bool
-    KillSpawnedProcess (lldb::pid_t pid);
-
-    bool
-    IsGdbServer ()
-    {
-        return !m_is_platform;
-    }
-
-    /// Launch an inferior process from lldb-gdbserver
-    lldb_private::Error
-    LaunchProcessForDebugging ();
-
-    /// Launch a process from lldb-platform
-    lldb_private::Error
-    LaunchPlatformProcess ();
-
-    void
-    HandleInferiorState_Exited (lldb_private::NativeProcessProtocol *process);
-
-    void
-    HandleInferiorState_Stopped (lldb_private::NativeProcessProtocol *process);
-
-    void
-    FlushInferiorOutput ();
-
-    lldb_private::NativeThreadProtocolSP
-    GetThreadFromSuffix (StringExtractorGDBRemote &packet);
-
-    uint32_t
-    GetNextSavedRegistersID ();
-
-    void
-    MaybeCloseInferiorTerminalConnection ();
-
-    void
-    ClearProcessSpecificData ();
-
-    bool
-    ShouldRedirectInferiorOutputOverGdbRemote (const lldb_private::ProcessLaunchInfo &launch_info) const;
-
     //------------------------------------------------------------------
     // For GDBRemoteCommunicationServer only
     //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (GDBRemoteCommunicationServer);
 };
 
+} // namespace process_gdb_remote
+} // namespace lldb_private
+
 #endif  // liblldb_GDBRemoteCommunicationServer_h_