Update LLDB snapshot to upstream r241361

Notable upstream commits (upstream revision in parens):

- Add a JSON producer to LLDB (228636)
- Don't crash on bad DWARF expression (228729)
- Add support of DWARFv3 DW_OP_form_tls_address (231342)
- Assembly profiler for MIPS64 (232619)
- Handle FreeBSD/arm64 core files (233273)
- Read/Write register for MIPS64 (233685)
- Rework LLDB system initialization (233758)
- SysV ABI for aarch64 (236098)
- MIPS software single stepping (236696)
- FreeBSD/arm live debugging support (237303)
- Assembly profiler for mips32 (237420)
- Parse function name from DWARF DW_AT_abstract_origin (238307)
- Improve LLDB prompt handling (238313)
- Add real time signals support to FreeBSDSignals (238316)
- Fix race in IOHandlerProcessSTDIO (238423)
- MIPS64 Branch instruction emulation for SW single stepping (238820)
- Improve OSType initialization in elf object file's arch_spec (239148)
- Emulation of MIPS64 floating-point branch instructions (239996)
- ABI Plugin for MIPS32 (239997)
- ABI Plugin for MIPS64 (240123)
- MIPS32 branch emulation and single stepping (240373)
- Improve instruction emulation based stack unwinding on ARM (240533)
- Add branch emulation to aarch64 instruction emulator (240769)

1 files changed, 216 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h
new file mode 100644
index 0000000..62b129b
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h
@@ -0,0 +1,216 @@
+//===-- GDBRemoteCommunicationServerCommon.h --------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GDBRemoteCommunicationServerCommon_h_
+#define liblldb_GDBRemoteCommunicationServerCommon_h_
+
+// C Includes
+// C++ Includes
+#include <set>
+
+// Other libraries and framework includes
+#include "lldb/lldb-private-forward.h"
+#include "lldb/Host/Mutex.h"
+#include "lldb/Target/Process.h"
+
+// Project includes
+#include "GDBRemoteCommunicationServer.h"
+#include "GDBRemoteCommunicationServerCommon.h"
+
+class StringExtractorGDBRemote;
+
+namespace lldb_private {
+namespace process_gdb_remote {
+
+class ProcessGDBRemote;
+
+class GDBRemoteCommunicationServerCommon :
+    public GDBRemoteCommunicationServer
+{
+public:
+    GDBRemoteCommunicationServerCommon(const char *comm_name, const char *listener_name);
+
+    virtual
+    ~GDBRemoteCommunicationServerCommon();
+
+protected:
+    std::set<lldb::pid_t> m_spawned_pids;
+    Mutex m_spawned_pids_mutex;
+    ProcessLaunchInfo m_process_launch_info;
+    Error m_process_launch_error;
+    ProcessInstanceInfoList m_proc_infos;
+    uint32_t m_proc_infos_index;
+    bool m_thread_suffix_supported;
+    bool m_list_threads_in_stop_reply;
+
+    PacketResult
+    Handle_A (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qHostInfo (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qProcessInfoPID (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qfProcessInfo (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qsProcessInfo (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qUserName (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qGroupName (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qSpeedTest (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qKillSpawnedProcess (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_qEcho (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qModuleInfo (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qPlatform_shell (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qPlatform_mkdir (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qPlatform_chmod (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qSupported (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QThreadSuffixSupported (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QListThreadsInStopReply (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QSetDetachOnError (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QStartNoAckMode (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QSetSTDIN (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QSetSTDOUT (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QSetSTDERR (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qLaunchSuccess (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QEnvironment (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QEnvironmentHexEncoded (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_QLaunchArch (StringExtractorGDBRemote &packet);
+
+    bool
+    KillSpawnedProcess (lldb::pid_t pid);
+
+    static void
+    CreateProcessInfoResponse (const ProcessInstanceInfo &proc_info,
+                               StreamString &response);
+
+    static void
+    CreateProcessInfoResponse_DebugServerStyle (const ProcessInstanceInfo &proc_info,
+                                                StreamString &response);
+
+    template <typename T>
+    void
+    RegisterMemberFunctionHandler (StringExtractorGDBRemote::ServerPacketType packet_type,
+                                   PacketResult (T::*handler) (StringExtractorGDBRemote& packet))
+    {
+        RegisterPacketHandler(packet_type,
+                              [this, handler] (StringExtractorGDBRemote packet,
+                                               Error &error,
+                                               bool &interrupt,
+                                               bool &quit)
+                              {
+                                  return (static_cast<T*>(this)->*handler) (packet);
+                              });
+    }
+
+    bool
+    GetThreadSuffixSupported () override
+    {
+        return true;
+    }
+
+    //------------------------------------------------------------------
+    /// 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.
+    //------------------------------------------------------------------
+    virtual Error
+    LaunchProcess () = 0;
+
+    virtual FileSpec
+    FindModuleFile (const std::string& module_path, const ArchSpec& arch);
+};
+
+} // namespace process_gdb_remote
+} // namespace lldb_private
+
+#endif  // liblldb_GDBRemoteCommunicationServerCommon_h_