Update LLDB to upstream r194122 snapshot

ludes minor changes relative to upstream, for compatibility with
FreeBSD's in-tree LLVM 3.3:

- Reverted LLDB r191806, restoring use of previous API.
- Reverted part of LLDB r189317, restoring previous enum names.
- Work around missing LLVM r192504, using previous registerEHFrames API
  (limited functionality).
- Removed PlatformWindows header include and init/terminate calls.

Sponsored by:	DARPA, AFRL

11 files changed, 1374 insertions, 363 deletions

diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
index d7efdf2..f67e1b5 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
@@ -133,7 +133,11 @@ GDBRemoteCommunication::GDBRemoteCommunication(const char *comm_name,
                                                const char *listener_name, 
                                                bool is_platform) :
     Communication(comm_name),
+#ifdef LLDB_CONFIGURATION_DEBUG
+    m_packet_timeout (1000),
+#else
     m_packet_timeout (1),
+#endif
     m_sequence_mutex (Mutex::eMutexTypeRecursive),
     m_public_is_running (false),
     m_private_is_running (false),
@@ -173,7 +177,7 @@ GDBRemoteCommunication::SendAck ()
     char ch = '+';
     const size_t bytes_written = Write (&ch, 1, status, NULL);
     if (log)
-        log->Printf ("<%4zu> send packet: %c", bytes_written, ch);
+        log->Printf ("<%4" PRIu64 "> send packet: %c", (uint64_t)bytes_written, ch);
     m_history.AddPacket (ch, History::ePacketTypeSend, bytes_written);
     return bytes_written;
 }
@@ -186,7 +190,7 @@ GDBRemoteCommunication::SendNack ()
     char ch = '-';
     const size_t bytes_written = Write (&ch, 1, status, NULL);
     if (log)
-        log->Printf ("<%4zu> send packet: %c", bytes_written, ch);
+        log->Printf("<%4" PRIu64 "> send packet: %c", (uint64_t)bytes_written, ch);
     m_history.AddPacket (ch, History::ePacketTypeSend, bytes_written);
     return bytes_written;
 }
@@ -222,7 +226,7 @@ GDBRemoteCommunication::SendPacketNoLock (const char *payload, size_t payload_le
             if (!m_history.DidDumpToLog ())
                 m_history.Dump (log);
 
-            log->Printf ("<%4zu> send packet: %.*s", bytes_written, (int)packet.GetSize(), packet.GetData());
+            log->Printf("<%4" PRIu64 "> send packet: %.*s", (uint64_t)bytes_written, (int)packet.GetSize(), packet.GetData());
         }
 
         m_history.AddPacket (packet.GetString(), packet.GetSize(), History::ePacketTypeSend, bytes_written);
@@ -456,13 +460,38 @@ GDBRemoteCommunication::CheckForPacket (const uint8_t *src, size_t src_len, Stri
                 if (!m_history.DidDumpToLog ())
                     m_history.Dump (log);
                 
-                log->Printf ("<%4zu> read packet: %.*s", total_length, (int)(total_length), m_bytes.c_str());
+                log->Printf("<%4" PRIu64 "> read packet: %.*s", (uint64_t)total_length, (int)(total_length), m_bytes.c_str());
             }
 
             m_history.AddPacket (m_bytes.c_str(), total_length, History::ePacketTypeRecv, total_length);
 
-            packet_str.assign (m_bytes, content_start, content_length);
-            
+            // Clear packet_str in case there is some existing data in it.
+            packet_str.clear();
+            // Copy the packet from m_bytes to packet_str expanding the
+            // run-length encoding in the process.
+            // Reserve enough byte for the most common case (no RLE used)
+            packet_str.reserve(m_bytes.length());
+            for (std::string::const_iterator c = m_bytes.begin() + content_start; c != m_bytes.begin() + content_start + content_length; ++c)
+            {
+                if (*c == '*')
+                {
+                    // '*' indicates RLE. Next character will give us the
+                    // repeat count and previous character is what is to be
+                    // repeated.
+                    char char_to_repeat = packet_str.back();
+                    // Number of time the previous character is repeated
+                    int repeat_count = *++c + 3 - ' ';
+                    // We have the char_to_repeat and repeat_count. Now push
+                    // it in the packet.
+                    for (int i = 0; i < repeat_count; ++i)
+                        packet_str.push_back(char_to_repeat);
+                }
+                else
+                {
+                    packet_str.push_back(*c);
+                }
+            }
+
             if (m_bytes[0] == '$')
             {
                 assert (checksum_idx < m_bytes.size());
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
index ca594a8..2ac7d20 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -11,6 +11,8 @@
 #include "GDBRemoteCommunicationClient.h"
 
 // C Includes
+#include <sys/stat.h>
+
 // C++ Includes
 #include <sstream>
 
@@ -20,6 +22,7 @@
 #include "lldb/Core/ConnectionFileDescriptor.h"
 #include "lldb/Core/Log.h"
 #include "lldb/Core/State.h"
+#include "lldb/Core/StreamGDBRemote.h"
 #include "lldb/Core/StreamString.h"
 #include "lldb/Host/Endian.h"
 #include "lldb/Host/Host.h"
@@ -29,10 +32,15 @@
 #include "Utility/StringExtractorGDBRemote.h"
 #include "ProcessGDBRemote.h"
 #include "ProcessGDBRemoteLog.h"
+#include "lldb/Host/Config.h"
 
 using namespace lldb;
 using namespace lldb_private;
 
+#ifdef LLDB_DISABLE_POSIX
+#define SIGSTOP 17
+#endif
+
 //----------------------------------------------------------------------
 // GDBRemoteCommunicationClient constructor
 //----------------------------------------------------------------------
@@ -56,6 +64,7 @@ GDBRemoteCommunicationClient::GDBRemoteCommunicationClient(bool is_platform) :
     m_watchpoints_trigger_after_instruction(eLazyBoolCalculate),
     m_attach_or_wait_reply(eLazyBoolCalculate),
     m_prepare_for_reg_writing_reply (eLazyBoolCalculate),
+    m_supports_p (eLazyBoolCalculate),
     m_supports_qProcessInfoPID (true),
     m_supports_qfProcessInfo (true),
     m_supports_qUserName (true),
@@ -66,6 +75,8 @@ GDBRemoteCommunicationClient::GDBRemoteCommunicationClient(bool is_platform) :
     m_supports_z2 (true),
     m_supports_z3 (true),
     m_supports_z4 (true),
+    m_supports_QEnvironment (true),
+    m_supports_QEnvironmentHexEncoded (true),
     m_curr_tid (LLDB_INVALID_THREAD_ID),
     m_curr_tid_run (LLDB_INVALID_THREAD_ID),
     m_num_supported_hardware_watchpoints (0),
@@ -79,7 +90,11 @@ GDBRemoteCommunicationClient::GDBRemoteCommunicationClient(bool is_platform) :
     m_process_arch(),
     m_os_version_major (UINT32_MAX),
     m_os_version_minor (UINT32_MAX),
-    m_os_version_update (UINT32_MAX)
+    m_os_version_update (UINT32_MAX),
+    m_os_build (),
+    m_os_kernel (),
+    m_hostname (),
+    m_default_packet_timeout (0)
 {
 }
 
@@ -192,6 +207,7 @@ GDBRemoteCommunicationClient::ResetDiscoverableSettings()
     m_supports_vCont_C = eLazyBoolCalculate;
     m_supports_vCont_s = eLazyBoolCalculate;
     m_supports_vCont_S = eLazyBoolCalculate;
+    m_supports_p = eLazyBoolCalculate;
     m_qHostInfo_is_valid = eLazyBoolCalculate;
     m_qProcessInfo_is_valid = eLazyBoolCalculate;
     m_supports_alloc_dealloc_memory = eLazyBoolCalculate;
@@ -209,6 +225,8 @@ GDBRemoteCommunicationClient::ResetDiscoverableSettings()
     m_supports_z2 = true;
     m_supports_z3 = true;
     m_supports_z4 = true;
+    m_supports_QEnvironment = true;
+    m_supports_QEnvironmentHexEncoded = true;
     m_host_arch.Clear();
     m_process_arch.Clear();
 }
@@ -287,6 +305,32 @@ GDBRemoteCommunicationClient::GetVContSupported (char flavor)
     return false;
 }
 
+// Check if the target supports 'p' packet. It sends out a 'p'
+// packet and checks the response. A normal packet will tell us
+// that support is available.
+//
+// Takes a valid thread ID because p needs to apply to a thread.
+bool
+GDBRemoteCommunicationClient::GetpPacketSupported (lldb::tid_t tid)
+{
+    if (m_supports_p == eLazyBoolCalculate)
+    {
+        StringExtractorGDBRemote response;
+        m_supports_p = eLazyBoolNo;
+        char packet[256];
+        if (GetThreadSuffixSupported())
+            snprintf(packet, sizeof(packet), "p0;thread:%" PRIx64 ";", tid);
+        else
+            snprintf(packet, sizeof(packet), "p0");
+        
+        if (SendPacketAndWaitForResponse(packet, response, false))
+        {
+            if (response.IsNormalResponse())
+                m_supports_p = eLazyBoolYes;
+        }
+    }
+    return m_supports_p;
+}
 
 size_t
 GDBRemoteCommunicationClient::SendPacketAndWaitForResponse
@@ -978,15 +1022,61 @@ GDBRemoteCommunicationClient::SendEnvironmentPacket (char const *name_equal_valu
     if (name_equal_value && name_equal_value[0])
     {
         StreamString packet;
-        packet.Printf("QEnvironment:%s", name_equal_value);
+        bool send_hex_encoding = false;
+        for (const char *p = name_equal_value; *p != '\0' && send_hex_encoding == false; ++p)
+        {
+            if (isprint(*p))
+            {
+                switch (*p)
+                {
+                    case '$':
+                    case '#':
+                        send_hex_encoding = true;
+                        break;
+                    default:
+                        break;
+                }
+            }
+            else
+            {
+                // We have non printable characters, lets hex encode this...
+                send_hex_encoding = true;
+            }
+        }
+        
         StringExtractorGDBRemote response;
-        if (SendPacketAndWaitForResponse (packet.GetData(), packet.GetSize(), response, false))
+        if (send_hex_encoding)
         {
-            if (response.IsOKResponse())
-                return 0;
-            uint8_t error = response.GetError();
-            if (error)
-                return error;
+            if (m_supports_QEnvironmentHexEncoded)
+            {
+                packet.PutCString("QEnvironmentHexEncoded:");
+                packet.PutBytesAsRawHex8 (name_equal_value, strlen(name_equal_value));
+                if (SendPacketAndWaitForResponse (packet.GetData(), packet.GetSize(), response, false))
+                {
+                    if (response.IsOKResponse())
+                        return 0;
+                    uint8_t error = response.GetError();
+                    if (error)
+                        return error;
+                    if (response.IsUnsupportedResponse())
+                        m_supports_QEnvironmentHexEncoded = false;
+                }
+            }
+            
+        }
+        else if (m_supports_QEnvironment)
+        {
+            packet.Printf("QEnvironment:%s", name_equal_value);
+            if (SendPacketAndWaitForResponse (packet.GetData(), packet.GetSize(), response, false))
+            {
+                if (response.IsOKResponse())
+                    return 0;
+                uint8_t error = response.GetError();
+                if (error)
+                    return error;
+                if (response.IsUnsupportedResponse())
+                    m_supports_QEnvironment = false;
+            }
         }
     }
     return -1;
@@ -1213,6 +1303,15 @@ GDBRemoteCommunicationClient::GetHostInfo (bool force)
                         else
                             --num_keys_decoded;
                     }
+                    else if (name.compare("default_packet_timeout") == 0)
+                    {
+                        m_default_packet_timeout = Args::StringToUInt32(value.c_str(), 0);
+                        if (m_default_packet_timeout > 0)
+                        {
+                            SetPacketTimeout(m_default_packet_timeout);
+                            ++num_keys_decoded;
+                        }
+                    }
 
                 }
                 
@@ -1347,6 +1446,14 @@ GDBRemoteCommunicationClient::GetHostArchitecture ()
     return m_host_arch;
 }
 
+uint32_t
+GDBRemoteCommunicationClient::GetHostDefaultPacketTimeout ()
+{
+    if (m_qHostInfo_is_valid == eLazyBoolCalculate)
+        GetHostInfo ();
+    return m_default_packet_timeout;
+}
+
 addr_t
 GDBRemoteCommunicationClient::AllocateMemory (size_t size, uint32_t permissions)
 {
@@ -2132,21 +2239,37 @@ GDBRemoteCommunicationClient::SendSpeedTestPacket (uint32_t send_size, uint32_t
 }
 
 uint16_t
-GDBRemoteCommunicationClient::LaunchGDBserverAndGetPort ()
+GDBRemoteCommunicationClient::LaunchGDBserverAndGetPort (lldb::pid_t &pid)
 {
+    pid = LLDB_INVALID_PROCESS_ID;
     StringExtractorGDBRemote response;
-    if (SendPacketAndWaitForResponse("qLaunchGDBServer", strlen("qLaunchGDBServer"), response, false))
+    StreamString stream;
+    stream.PutCString("qLaunchGDBServer:port:0;");
+    std::string hostname;
+    if (Host::GetHostname (hostname))
+    {
+        // Make the GDB server we launch only accept connections from this host
+        stream.Printf("host:%s;", hostname.c_str());
+    }
+    else
+    {
+        // Make the GDB server we launch accept connections from any host since we can't figure out the hostname
+        stream.Printf("host:*;");
+    }
+    const char *packet = stream.GetData();
+    int packet_len = stream.GetSize();
+
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
     {
         std::string name;
         std::string value;
         uint16_t port = 0;
-        //lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
         while (response.GetNameColonValue(name, value))
         {
-            if (name.size() == 4 && name.compare("port") == 0)
+            if (name.compare("port") == 0)
                 port = Args::StringToUInt32(value.c_str(), 0, 0);
-//            if (name.size() == 3 && name.compare("pid") == 0)
-//                pid = Args::StringToUInt32(value.c_str(), LLDB_INVALID_PROCESS_ID, 0);
+            else if (name.compare("pid") == 0)
+                pid = Args::StringToUInt64(value.c_str(), LLDB_INVALID_PROCESS_ID, 0);
         }
         return port;
     }
@@ -2154,6 +2277,23 @@ GDBRemoteCommunicationClient::LaunchGDBserverAndGetPort ()
 }
 
 bool
+GDBRemoteCommunicationClient::KillSpawnedProcess (lldb::pid_t pid)
+{
+    StreamString stream;
+    stream.Printf ("qKillSpawnedProcess:%" PRId64 , pid);
+    const char *packet = stream.GetData();
+    int packet_len = stream.GetSize();
+
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.IsOKResponse())
+            return true;
+    }
+    return false;
+}
+
+bool
 GDBRemoteCommunicationClient::SetCurrentThread (uint64_t tid)
 {
     if (m_curr_tid == tid)
@@ -2222,7 +2362,9 @@ GDBRemoteCommunicationClient::GetThreadStopInfo (lldb::tid_t tid, StringExtracto
         assert (packet_len < (int)sizeof(packet));
         if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
         {
-            if (response.IsNormalResponse())
+            if (response.IsUnsupportedResponse())
+                m_supports_qThreadStopInfo = false;
+            else if (response.IsNormalResponse())
                 return true;
             else
                 return false;
@@ -2232,8 +2374,6 @@ GDBRemoteCommunicationClient::GetThreadStopInfo (lldb::tid_t tid, StringExtracto
             m_supports_qThreadStopInfo = false;
         }
     }
-//    if (SetCurrentThread (tid))
-//        return GetStopReply (response);
     return false;
 }
 
@@ -2346,3 +2486,326 @@ GDBRemoteCommunicationClient::GetShlibInfoAddr()
     return LLDB_INVALID_ADDRESS;
 }
 
+lldb_private::Error
+GDBRemoteCommunicationClient::RunShellCommand (const char *command,           // Shouldn't be NULL
+                                               const char *working_dir,       // Pass NULL to use the current working directory
+                                               int *status_ptr,               // Pass NULL if you don't want the process exit status
+                                               int *signo_ptr,                // Pass NULL if you don't want the signal that caused the process to exit
+                                               std::string *command_output,   // Pass NULL if you don't want the command output
+                                               uint32_t timeout_sec)          // Timeout in seconds to wait for shell program to finish
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("qPlatform_RunCommand:");
+    stream.PutBytesAsRawHex8(command, strlen(command));
+    stream.PutChar(',');
+    stream.PutHex32(timeout_sec);
+    if (working_dir && *working_dir)
+    {
+        stream.PutChar(',');
+        stream.PutBytesAsRawHex8(working_dir, strlen(working_dir));
+    }
+    const char *packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+            return Error("malformed reply");
+        if (response.GetChar() != ',')
+            return Error("malformed reply");
+        uint32_t exitcode = response.GetHexMaxU32(false, UINT32_MAX);
+        if (exitcode == UINT32_MAX)
+            return Error("unable to run remote process");
+        else if (status_ptr)
+            *status_ptr = exitcode;
+        if (response.GetChar() != ',')
+            return Error("malformed reply");
+        uint32_t signo = response.GetHexMaxU32(false, UINT32_MAX);
+        if (signo_ptr)
+            *signo_ptr = signo;
+        if (response.GetChar() != ',')
+            return Error("malformed reply");
+        std::string output;
+        response.GetEscapedBinaryData(output);
+        if (command_output)
+            command_output->assign(output);
+        return Error();
+    }
+    return Error("unable to send packet");
+}
+
+uint32_t
+GDBRemoteCommunicationClient::MakeDirectory (const std::string &path,
+                                             mode_t mode)
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("qPlatform_IO_MkDir:");
+    stream.PutHex32(mode);
+    stream.PutChar(',');
+    stream.PutBytesAsRawHex8(path.c_str(), path.size());
+    const char *packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        return response.GetHexMaxU32(false, UINT32_MAX);
+    }
+    return UINT32_MAX;
+
+}
+
+static uint64_t
+ParseHostIOPacketResponse (StringExtractorGDBRemote &response,
+                           uint64_t fail_result,
+                           Error &error)
+{
+    response.SetFilePos(0);
+    if (response.GetChar() != 'F')
+        return fail_result;
+    int32_t result = response.GetS32 (-2);
+    if (result == -2)
+        return fail_result;
+    if (response.GetChar() == ',')
+    {
+        int result_errno = response.GetS32 (-2);
+        if (result_errno != -2)
+            error.SetError(result_errno, eErrorTypePOSIX);
+        else
+            error.SetError(-1, eErrorTypeGeneric);
+    }
+    else
+        error.Clear();
+    return  result;
+}
+lldb::user_id_t
+GDBRemoteCommunicationClient::OpenFile (const lldb_private::FileSpec& file_spec,
+                                        uint32_t flags,
+                                        mode_t mode,
+                                        Error &error)
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("vFile:open:");
+    std::string path (file_spec.GetPath());
+    if (path.empty())
+        return UINT64_MAX;
+    stream.PutCStringAsRawHex8(path.c_str());
+    stream.PutChar(',');
+    const uint32_t posix_open_flags = File::ConvertOpenOptionsForPOSIXOpen(flags);
+    stream.PutHex32(posix_open_flags);
+    stream.PutChar(',');
+    stream.PutHex32(mode);
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        return ParseHostIOPacketResponse (response, UINT64_MAX, error);
+    }
+    return UINT64_MAX;
+}
+
+bool
+GDBRemoteCommunicationClient::CloseFile (lldb::user_id_t fd,
+                                         Error &error)
+{
+    lldb_private::StreamString stream;
+    stream.Printf("vFile:close:%i", (int)fd);
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        return ParseHostIOPacketResponse (response, -1, error) == 0;
+    }
+    return false;
+}
+
+// Extension of host I/O packets to get the file size.
+lldb::user_id_t
+GDBRemoteCommunicationClient::GetFileSize (const lldb_private::FileSpec& file_spec)
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("vFile:size:");
+    std::string path (file_spec.GetPath());
+    stream.PutCStringAsRawHex8(path.c_str());
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+            return UINT64_MAX;
+        uint32_t retcode = response.GetHexMaxU64(false, UINT64_MAX);
+        return retcode;
+    }
+    return UINT64_MAX;
+}
+
+uint32_t
+GDBRemoteCommunicationClient::GetFilePermissions(const lldb_private::FileSpec& file_spec, Error &error)
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("vFile:mode:");
+    std::string path (file_spec.GetPath());
+    stream.PutCStringAsRawHex8(path.c_str());
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+        {
+            error.SetErrorStringWithFormat ("invalid response to '%s' packet", packet);
+            return 0;
+        }
+        const uint32_t mode = response.GetS32(-1);
+        if (mode == -1)
+        {
+            if (response.GetChar() == ',')
+            {
+                int response_errno = response.GetS32(-1);
+                if (response_errno > 0)
+                    error.SetError(response_errno, lldb::eErrorTypePOSIX);
+                else
+                    error.SetErrorToGenericError();
+            }
+        }
+        else
+            error.Clear();
+        return mode & (S_IRWXU|S_IRWXG|S_IRWXO);
+    }
+    else
+    {
+        error.SetErrorStringWithFormat ("failed to send '%s' packet", packet);
+    }
+    return 0;
+}
+
+uint64_t
+GDBRemoteCommunicationClient::ReadFile (lldb::user_id_t fd,
+                                        uint64_t offset,
+                                        void *dst,
+                                        uint64_t dst_len,
+                                        Error &error)
+{
+    lldb_private::StreamString stream;
+    stream.Printf("vFile:pread:%i,%" PRId64 ",%" PRId64, (int)fd, dst_len, offset);
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+            return 0;
+        uint32_t retcode = response.GetHexMaxU32(false, UINT32_MAX);
+        if (retcode == UINT32_MAX)
+            return retcode;
+        const char next = (response.Peek() ? *response.Peek() : 0);
+        if (next == ',')
+            return 0;
+        if (next == ';')
+        {
+            response.GetChar(); // skip the semicolon
+            std::string buffer;
+            if (response.GetEscapedBinaryData(buffer))
+            {
+                const uint64_t data_to_write = std::min<uint64_t>(dst_len, buffer.size());
+                if (data_to_write > 0)
+                    memcpy(dst, &buffer[0], data_to_write);
+                return data_to_write;
+            }
+        }
+    }
+    return 0;
+}
+
+uint64_t
+GDBRemoteCommunicationClient::WriteFile (lldb::user_id_t fd,
+                                         uint64_t offset,
+                                         const void* src,
+                                         uint64_t src_len,
+                                         Error &error)
+{
+    lldb_private::StreamGDBRemote stream;
+    stream.Printf("vFile:pwrite:%i,%" PRId64 ",", (int)fd, offset);
+    stream.PutEscapedBytes(src, src_len);
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+        {
+            error.SetErrorStringWithFormat("write file failed");
+            return 0;
+        }
+        uint64_t bytes_written = response.GetU64(UINT64_MAX);
+        if (bytes_written == UINT64_MAX)
+        {
+            error.SetErrorToGenericError();
+            if (response.GetChar() == ',')
+            {
+                int response_errno = response.GetS32(-1);
+                if (response_errno > 0)
+                    error.SetError(response_errno, lldb::eErrorTypePOSIX);
+            }
+            return 0;
+        }
+        return bytes_written;
+    }
+    else
+    {
+        error.SetErrorString ("failed to send vFile:pwrite packet");
+    }
+    return 0;
+}
+
+// Extension of host I/O packets to get whether a file exists.
+bool
+GDBRemoteCommunicationClient::GetFileExists (const lldb_private::FileSpec& file_spec)
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("vFile:exists:");
+    std::string path (file_spec.GetPath());
+    stream.PutCStringAsRawHex8(path.c_str());
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+            return false;
+        if (response.GetChar() != ',')
+            return false;
+        bool retcode = (response.GetChar() != '0');
+        return retcode;
+    }
+    return false;
+}
+
+bool
+GDBRemoteCommunicationClient::CalculateMD5 (const lldb_private::FileSpec& file_spec,
+                                            uint64_t &high,
+                                            uint64_t &low)
+{
+    lldb_private::StreamString stream;
+    stream.PutCString("vFile:MD5:");
+    std::string path (file_spec.GetPath());
+    stream.PutCStringAsRawHex8(path.c_str());
+    const char* packet = stream.GetData();
+    int packet_len = stream.GetSize();
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false))
+    {
+        if (response.GetChar() != 'F')
+            return false;
+        if (response.GetChar() != ',')
+            return false;
+        if (response.Peek() && *response.Peek() == 'x')
+            return false;
+        low = response.GetHexMaxU64(false, UINT64_MAX);
+        high = response.GetHexMaxU64(false, UINT64_MAX);
+        return true;
+    }
+    return false;
+}
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
index 5bb8387..d5535bb 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
@@ -89,7 +89,10 @@ public:
     GetLaunchSuccess (std::string &error_str);
 
     uint16_t
-    LaunchGDBserverAndGetPort ();
+    LaunchGDBserverAndGetPort (lldb::pid_t &pid);
+    
+    bool
+    KillSpawnedProcess (lldb::pid_t pid);
 
     //------------------------------------------------------------------
     /// Sends a GDB remote protocol 'A' packet that delivers program
@@ -217,6 +220,9 @@ public:
 
     const lldb_private::ArchSpec &
     GetHostArchitecture ();
+    
+    uint32_t
+    GetHostDefaultPacketTimeout();
 
     const lldb_private::ArchSpec &
     GetProcessArchitecture ();
@@ -225,6 +231,9 @@ public:
     GetVContSupported (char flavor);
 
     bool
+    GetpPacketSupported (lldb::tid_t tid);
+
+    bool
     GetVAttachOrWaitSupported ();
     
     bool
@@ -347,10 +356,61 @@ public:
         return m_interrupt_sent;
     }
     
+    virtual lldb::user_id_t
+    OpenFile (const lldb_private::FileSpec& file_spec,
+              uint32_t flags,
+              mode_t mode,
+              lldb_private::Error &error);
+    
+    virtual bool
+    CloseFile (lldb::user_id_t fd,
+               lldb_private::Error &error);
+    
+    virtual lldb::user_id_t
+    GetFileSize (const lldb_private::FileSpec& file_spec);
+    
+    virtual uint32_t
+    GetFilePermissions(const lldb_private::FileSpec& file_spec,
+                       lldb_private::Error &error);
+
+    virtual uint64_t
+    ReadFile (lldb::user_id_t fd,
+              uint64_t offset,
+              void *dst,
+              uint64_t dst_len,
+              lldb_private::Error &error);
+    
+    virtual uint64_t
+    WriteFile (lldb::user_id_t fd,
+               uint64_t offset,
+               const void* src,
+               uint64_t src_len,
+               lldb_private::Error &error);
+    
+    virtual uint32_t
+    MakeDirectory (const std::string &path,
+                   mode_t mode);
+    
+    virtual bool
+    GetFileExists (const lldb_private::FileSpec& file_spec);
+    
+    virtual lldb_private::Error
+    RunShellCommand (const char *command,           // Shouldn't be NULL
+                     const char *working_dir,       // Pass NULL to use the current working directory
+                     int *status_ptr,               // Pass NULL if you don't want the process exit status
+                     int *signo_ptr,                // Pass NULL if you don't want the signal that caused the process to exit
+                     std::string *command_output,   // Pass NULL if you don't want the command output
+                     uint32_t timeout_sec);         // Timeout in seconds to wait for shell program to finish
+    
+    virtual bool
+    CalculateMD5 (const lldb_private::FileSpec& file_spec,
+                  uint64_t &high,
+                  uint64_t &low);
+    
     std::string
     HarmonizeThreadIdsForProfileData (ProcessGDBRemote *process,
                                       StringExtractorGDBRemote &inputStringExtractor);
-    
+
 protected:
 
     bool
@@ -377,6 +437,7 @@ protected:
     lldb_private::LazyBool m_watchpoints_trigger_after_instruction;
     lldb_private::LazyBool m_attach_or_wait_reply;
     lldb_private::LazyBool m_prepare_for_reg_writing_reply;
+    lldb_private::LazyBool m_supports_p;
     
     bool
         m_supports_qProcessInfoPID:1,
@@ -388,7 +449,9 @@ protected:
         m_supports_z1:1,
         m_supports_z2:1,
         m_supports_z3:1,
-        m_supports_z4:1;
+        m_supports_z4:1,
+        m_supports_QEnvironment:1,
+        m_supports_QEnvironmentHexEncoded:1;
     
 
     lldb::tid_t m_curr_tid;         // Current gdb remote protocol thread index for all other operations
@@ -416,6 +479,7 @@ protected:
     std::string m_os_build;
     std::string m_os_kernel;
     std::string m_hostname;
+    uint32_t m_default_packet_timeout;
     
     bool
     DecodeProcessInfoResponse (StringExtractorGDBRemote &response, 
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
index 3a14e9f..df036cd 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
@@ -7,8 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include <errno.h>
 
 #include "GDBRemoteCommunicationServer.h"
+#include "lldb/Core/StreamGDBRemote.h"
 
 // C Includes
 // C++ Includes
@@ -20,6 +22,7 @@
 #include "lldb/Core/State.h"
 #include "lldb/Core/StreamString.h"
 #include "lldb/Host/Endian.h"
+#include "lldb/Host/File.h"
 #include "lldb/Host/Host.h"
 #include "lldb/Host/TimeValue.h"
 #include "lldb/Target/Process.h"
@@ -40,11 +43,31 @@ GDBRemoteCommunicationServer::GDBRemoteCommunicationServer(bool is_platform) :
     m_async_thread (LLDB_INVALID_HOST_THREAD),
     m_process_launch_info (),
     m_process_launch_error (),
+    m_spawned_pids (),
+    m_spawned_pids_mutex (Mutex::eMutexTypeRecursive),
     m_proc_infos (),
     m_proc_infos_index (0),
     m_lo_port_num (0),
-    m_hi_port_num (0)
+    m_hi_port_num (0),
+    m_next_port (0),
+    m_use_port_range (false)
 {
+    // We seldom need to override the port number that the debugserver process
+    // starts with.  We just pass in 0 to let the system choose a random port.
+    // In rare situation where the need arises, use two environment variables
+    // to override.
+    uint16_t lo_port_num = 0;
+    uint16_t hi_port_num = 0;
+    const char *lo_port_c_str = getenv("LLDB_PLATFORM_START_DEBUG_SERVER_LO_PORT");
+    if (lo_port_c_str)
+        lo_port_num = ::atoi(lo_port_c_str);
+    const char *hi_port_c_str = getenv("LLDB_PLATFORM_START_DEBUG_SERVER_HI_PORT");
+    if (hi_port_c_str)
+        hi_port_num = ::atoi(hi_port_c_str);
+    if (lo_port_num && hi_port_num && lo_port_num < hi_port_num)
+    {
+        SetPortRange(lo_port_num, hi_port_num);
+    }
 }
 
 //----------------------------------------------------------------------
@@ -65,7 +88,7 @@ GDBRemoteCommunicationServer::~GDBRemoteCommunicationServer()
 //        log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %i) thread starting...", __FUNCTION__, arg, process->GetID());
 //
 //    StringExtractorGDBRemote packet;
-//    
+//
 //    while ()
 //    {
 //        if (packet.
@@ -79,9 +102,9 @@ GDBRemoteCommunicationServer::~GDBRemoteCommunicationServer()
 //}
 //
 bool
-GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec, 
+GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec,
                                                         Error &error,
-                                                        bool &interrupt, 
+                                                        bool &interrupt,
                                                         bool &quit)
 {
     StringExtractorGDBRemote packet;
@@ -103,7 +126,7 @@ GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec,
                 error.SetErrorString("interrupt received");
                 interrupt = true;
                 break;
-            
+
             case StringExtractorGDBRemote::eServerPacketType_unimplemented:
                 return SendUnimplementedResponse (packet.GetStringRef().c_str()) > 0;
 
@@ -112,22 +135,25 @@ GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec,
 
             case StringExtractorGDBRemote::eServerPacketType_qfProcessInfo:
                 return Handle_qfProcessInfo (packet);
-                
+
             case StringExtractorGDBRemote::eServerPacketType_qsProcessInfo:
                 return Handle_qsProcessInfo (packet);
-                
+
             case StringExtractorGDBRemote::eServerPacketType_qC:
                 return Handle_qC (packet);
-                
+
             case StringExtractorGDBRemote::eServerPacketType_qHostInfo:
                 return Handle_qHostInfo (packet);
-                
+
             case StringExtractorGDBRemote::eServerPacketType_qLaunchGDBServer:
                 return Handle_qLaunchGDBServer (packet);
-                
+
+            case StringExtractorGDBRemote::eServerPacketType_qKillSpawnedProcess:
+                return Handle_qKillSpawnedProcess (packet);
+
             case StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess:
                 return Handle_qLaunchSuccess (packet);
-                
+
             case StringExtractorGDBRemote::eServerPacketType_qGroupName:
                 return Handle_qGroupName (packet);
 
@@ -142,24 +168,60 @@ GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec,
 
             case StringExtractorGDBRemote::eServerPacketType_QEnvironment:
                 return Handle_QEnvironment (packet);
-            
+
+            case StringExtractorGDBRemote::eServerPacketType_QLaunchArch:
+                return Handle_QLaunchArch (packet);
+
             case StringExtractorGDBRemote::eServerPacketType_QSetDisableASLR:
                 return Handle_QSetDisableASLR (packet);
-            
+
             case StringExtractorGDBRemote::eServerPacketType_QSetSTDIN:
                 return Handle_QSetSTDIN (packet);
-            
+
             case StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT:
                 return Handle_QSetSTDOUT (packet);
-            
+
             case StringExtractorGDBRemote::eServerPacketType_QSetSTDERR:
                 return Handle_QSetSTDERR (packet);
-            
+
             case StringExtractorGDBRemote::eServerPacketType_QSetWorkingDir:
                 return Handle_QSetWorkingDir (packet);
 
             case StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode:
                 return Handle_QStartNoAckMode (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_qPlatform_IO_MkDir:
+                return Handle_qPlatform_IO_MkDir (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_qPlatform_RunCommand:
+                return Handle_qPlatform_RunCommand (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_Open:
+                return Handle_vFile_Open (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_Close:
+                return Handle_vFile_Close (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_pRead:
+                return Handle_vFile_pRead (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_pWrite:
+                return Handle_vFile_pWrite (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_Size:
+                return Handle_vFile_Size (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_Mode:
+                return Handle_vFile_Mode (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_Exists:
+                return Handle_vFile_Exists (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_Stat:
+                return Handle_vFile_Stat (packet);
+
+            case StringExtractorGDBRemote::eServerPacketType_vFile_MD5:
+                return Handle_vFile_MD5 (packet);
         }
         return true;
     }
@@ -207,7 +269,7 @@ bool
 GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet)
 {
     StreamString response;
-    
+
     // $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00
 
     ArchSpec host_arch (Host::GetArchitecture ());
@@ -222,12 +284,12 @@ GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet
         response.Printf ("cputype:%u;", cpu);
     if (sub != LLDB_INVALID_CPUTYPE)
         response.Printf ("cpusubtype:%u;", sub);
-    
+
     if (cpu == ArchSpec::kCore_arm_any)
         response.Printf("watchpoint_exceptions_received:before;");   // On armv7 we use "synchronous" watchpoints which means the exception is delivered before the instruction executes.
     else
         response.Printf("watchpoint_exceptions_received:after;");
-    
+
     switch (lldb::endian::InlHostByteOrder())
     {
     case eByteOrderBig:     response.PutCString ("endian:big;"); break;
@@ -235,7 +297,7 @@ GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet
     case eByteOrderPDP:     response.PutCString ("endian:pdp;"); break;
     default:                response.PutCString ("endian:unknown;"); break;
     }
-    
+
     uint32_t major = UINT32_MAX;
     uint32_t minor = UINT32_MAX;
     uint32_t update = UINT32_MAX;
@@ -273,7 +335,7 @@ GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet
         response.PutCStringAsRawHex8(s.c_str());
         response.PutChar(';');
     }
-    
+
     return SendPacketNoLock (response.GetData(), response.GetSize()) > 0;
 }
 
@@ -319,7 +381,7 @@ GDBRemoteCommunicationServer::Handle_qProcessInfoPID (StringExtractorGDBRemote &
     return SendErrorResponse (1);
 }
 
-bool 
+bool
 GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &packet)
 {
     m_proc_infos_index = 0;
@@ -329,7 +391,7 @@ GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &pa
     packet.SetFilePos(::strlen ("qfProcessInfo"));
     if (packet.GetChar() == ':')
     {
-    
+
         std::string key;
         std::string value;
         while (packet.GetNameColonValue(key, value))
@@ -360,11 +422,11 @@ GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &pa
                 {
                     match_info.SetNameMatchType (eNameMatchContains);
                 }
-                else if (value.compare("regex") == 0)       
+                else if (value.compare("regex") == 0)
                 {
                     match_info.SetNameMatchType (eNameMatchRegularExpression);
                 }
-                else 
+                else
                 {
                     success = false;
                 }
@@ -405,7 +467,7 @@ GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &pa
             {
                 success = false;
             }
-            
+
             if (!success)
                 return SendErrorResponse (2);
         }
@@ -420,7 +482,7 @@ GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &pa
     return SendErrorResponse (3);
 }
 
-bool 
+bool
 GDBRemoteCommunicationServer::Handle_qsProcessInfo (StringExtractorGDBRemote &packet)
 {
     if (m_proc_infos_index < m_proc_infos.GetSize())
@@ -433,7 +495,7 @@ GDBRemoteCommunicationServer::Handle_qsProcessInfo (StringExtractorGDBRemote &pa
     return SendErrorResponse (4);
 }
 
-bool 
+bool
 GDBRemoteCommunicationServer::Handle_qUserName (StringExtractorGDBRemote &packet)
 {
     // Packet format: "qUserName:%i" where %i is the uid
@@ -450,10 +512,10 @@ GDBRemoteCommunicationServer::Handle_qUserName (StringExtractorGDBRemote &packet
         }
     }
     return SendErrorResponse (5);
-    
+
 }
 
-bool 
+bool
 GDBRemoteCommunicationServer::Handle_qGroupName (StringExtractorGDBRemote &packet)
 {
     // Packet format: "qGroupName:%i" where %i is the gid
@@ -539,11 +601,11 @@ AcceptPortFromInferior (void *arg)
 //    for (int i=0; i<num_retries; i++)
 //    {
 //        struct proc_bsdinfo bsd_info;
-//        int error = ::proc_pidinfo (pid, PROC_PIDTBSDINFO, 
-//                                    (uint64_t) 0, 
-//                                    &bsd_info, 
+//        int error = ::proc_pidinfo (pid, PROC_PIDTBSDINFO,
+//                                    (uint64_t) 0,
+//                                    &bsd_info,
 //                                    PROC_PIDTBSDINFO_SIZE);
-//        
+//
 //        switch (error)
 //        {
 //            case EINVAL:
@@ -551,10 +613,10 @@ AcceptPortFromInferior (void *arg)
 //            case ESRCH:
 //            case EPERM:
 //                return false;
-//                
+//
 //            default:
 //                break;
-//                
+//
 //            case 0:
 //                if (bsd_info.pbi_status == SSTOP)
 //                    return true;
@@ -567,9 +629,9 @@ AcceptPortFromInferior (void *arg)
 bool
 GDBRemoteCommunicationServer::Handle_A (StringExtractorGDBRemote &packet)
 {
-    // The 'A' packet is the most over designed packet ever here with 
-    // redundant argument indexes, redundant argument lengths and needed hex 
-    // encoded argument string values. Really all that is needed is a comma 
+    // The 'A' packet is the most over designed packet ever here with
+    // redundant argument indexes, redundant argument lengths and needed hex
+    // encoded argument string values. Really all that is needed is a comma
     // separated hex encoded argument value list, but we will stay true to the
     // documented version of the 'A' packet here...
 
@@ -615,7 +677,7 @@ GDBRemoteCommunicationServer::Handle_A (StringExtractorGDBRemote &packet)
                                 if (packet.GetChar() != ',')
                                     success = false;
                             }
-                            
+
                             if (success)
                             {
                                 if (arg_idx == 0)
@@ -649,11 +711,11 @@ GDBRemoteCommunicationServer::Handle_qC (StringExtractorGDBRemote &packet)
     response.Printf("QC%" PRIx64, pid);
     if (m_is_platform)
     {
-        // If we launch a process and this GDB server is acting as a platform, 
-        // then we need to clear the process launch state so we can start 
+        // If we launch a process and this GDB server is acting as a platform,
+        // then we need to clear the process launch state so we can start
         // launching another process. In order to launch a process a bunch or
         // packets need to be sent: environment packets, working directory,
-        // disable ASLR, and many more settings. When we launch a process we 
+        // disable ASLR, and many more settings. When we launch a process we
         // then need to know when to clear this information. Currently we are
         // selecting the 'qC' packet as that packet which seems to make the most
         // sense.
@@ -666,8 +728,30 @@ GDBRemoteCommunicationServer::Handle_qC (StringExtractorGDBRemote &packet)
 }
 
 bool
+GDBRemoteCommunicationServer::DebugserverProcessReaped (lldb::pid_t pid)
+{
+    Mutex::Locker locker (m_spawned_pids_mutex);
+    return m_spawned_pids.erase(pid) > 0;
+}
+bool
+GDBRemoteCommunicationServer::ReapDebugserverProcess (void *callback_baton,
+                                                      lldb::pid_t pid,
+                                                      bool exited,
+                                                      int signal,    // Zero for no signal
+                                                      int status)    // Exit value of process if signal is zero
+{
+    GDBRemoteCommunicationServer *server = (GDBRemoteCommunicationServer *)callback_baton;
+    server->DebugserverProcessReaped (pid);
+    return true;
+}
+
+bool
 GDBRemoteCommunicationServer::Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet)
 {
+#ifdef _WIN32
+    // No unix sockets on windows
+    return false;
+#else
     // Spawn a local debugserver as a platform so we can then attach or launch
     // a process...
 
@@ -677,49 +761,101 @@ GDBRemoteCommunicationServer::Handle_qLaunchGDBServer (StringExtractorGDBRemote
         ConnectionFileDescriptor file_conn;
         char connect_url[PATH_MAX];
         Error error;
-        char unix_socket_name[PATH_MAX] = "/tmp/XXXXXX";    
-        if (::mktemp (unix_socket_name) == NULL)
+        std::string hostname;
+        // TODO: /tmp/ should not be hardcoded. User might want to override /tmp
+        // with the TMPDIR environnement variable
+        char unix_socket_name[PATH_MAX] = "/tmp/XXXXXX";
+        if (::mkstemp (unix_socket_name) == -1)
         {
-            error.SetErrorString ("failed to make temporary path for a unix socket");
+            error.SetErrorStringWithFormat("failed to make temporary path for a unix socket: %s", strerror(errno));
         }
         else
         {
+            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 = Args::StringToUInt32(value.c_str(), 0, 0);
+            }
+            if (port == UINT16_MAX)
+                port = GetAndUpdateNextPort();
+
             ::snprintf (connect_url, sizeof(connect_url), "unix-accept://%s", unix_socket_name);
             // Spawn a new thread to accept the port that gets bound after
             // binding to port 0 (zero).
-            lldb::thread_t accept_thread = Host::ThreadCreate (unix_socket_name,
-                                                               AcceptPortFromInferior,
-                                                               connect_url,
-                                                               &error);
-            
+            lldb::thread_t accept_thread = LLDB_INVALID_HOST_THREAD;
+
+            if (port == 0)
+            {
+                accept_thread = Host::ThreadCreate (unix_socket_name,
+                                                    AcceptPortFromInferior,
+                                                    connect_url,
+                                                    &error);
+            }
+
             if (IS_VALID_LLDB_HOST_THREAD(accept_thread))
             {
-                // Spawn a debugserver and try to get
+                // Spawn a debugserver and try to get the port it listens to.
                 ProcessLaunchInfo debugserver_launch_info;
-                error = StartDebugserverProcess ("localhost:0", 
-                                                 unix_socket_name, 
+                StreamString host_and_port;
+                if (hostname.empty())
+                    hostname = "localhost";
+                host_and_port.Printf("%s:%u", hostname.c_str(), port);
+                const char *host_and_port_cstr = host_and_port.GetString().c_str();
+                Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
+                if (log)
+                    log->Printf("Launching debugserver with: %s...\n", host_and_port_cstr);
+                error = StartDebugserverProcess (host_and_port_cstr,
+                                                 unix_socket_name,
                                                  debugserver_launch_info);
-                
+
                 lldb::pid_t debugserver_pid = debugserver_launch_info.GetProcessID();
+
+                if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
+                {
+                    {
+                        Mutex::Locker locker (m_spawned_pids_mutex);
+                        m_spawned_pids.insert(debugserver_pid);
+                    }
+                    Host::StartMonitoringChildProcess (ReapDebugserverProcess, this, debugserver_pid, false);
+                }
+
                 if (error.Success())
                 {
                     bool success = false;
-                    
-                    thread_result_t accept_thread_result = NULL;
-                    if (Host::ThreadJoin (accept_thread, &accept_thread_result, &error))
+
+                    if (accept_thread)
                     {
-                        if (accept_thread_result)
+                        thread_result_t accept_thread_result = NULL;
+                        if (Host::ThreadJoin (accept_thread, &accept_thread_result, &error))
                         {
-                            uint16_t port = (intptr_t)accept_thread_result;
-                            char response[256];
-                            const int response_len = ::snprintf (response, sizeof(response), "pid:%" PRIu64 ";port:%u;", debugserver_pid, port);
-                            assert (response_len < (int)sizeof(response));
-                            //m_port_to_pid_map[port] = debugserver_launch_info.GetProcessID();
-                            success = SendPacketNoLock (response, response_len) > 0;
+                            if (accept_thread_result)
+                            {
+                                port = (intptr_t)accept_thread_result;
+                                char response[256];
+                                const int response_len = ::snprintf (response, sizeof(response), "pid:%" PRIu64 ";port:%u;", debugserver_pid, port);
+                                assert (response_len < sizeof(response));
+                                //m_port_to_pid_map[port] = debugserver_launch_info.GetProcessID();
+                                success = SendPacketNoLock (response, response_len) > 0;
+                            }
                         }
                     }
+                    else
+                    {
+                        char response[256];
+                        const int response_len = ::snprintf (response, sizeof(response), "pid:%" PRIu64 ";port:%u;", debugserver_pid, port);
+                        assert (response_len < sizeof(response));
+                        //m_port_to_pid_map[port] = debugserver_launch_info.GetProcessID();
+                        success = SendPacketNoLock (response, response_len) > 0;
+
+                    }
                     ::unlink (unix_socket_name);
-                    
+
                     if (!success)
                     {
                         if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
@@ -730,7 +866,61 @@ GDBRemoteCommunicationServer::Handle_qLaunchGDBServer (StringExtractorGDBRemote
             }
         }
     }
-    return SendErrorResponse (13);
+    return SendErrorResponse (9);
+#endif
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet)
+{
+    // Spawn a local debugserver as a platform so we can then attach or launch
+    // a process...
+
+    if (m_is_platform)
+    {
+        packet.SetFilePos(::strlen ("qKillSpawnedProcess:"));
+
+        lldb::pid_t pid = packet.GetU64(LLDB_INVALID_PROCESS_ID);
+
+        // Scope for locker
+        {
+            Mutex::Locker locker (m_spawned_pids_mutex);
+            if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+                return SendErrorResponse (10);
+        }
+        Host::Kill (pid, SIGTERM);
+
+        for (size_t i=0; i<10; ++i)
+        {
+            // Scope for locker
+            {
+                Mutex::Locker locker (m_spawned_pids_mutex);
+                if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+                    return true;
+            }
+            usleep (10000);
+        }
+
+        // Scope for locker
+        {
+            Mutex::Locker locker (m_spawned_pids_mutex);
+            if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+                return true;
+        }
+        Host::Kill (pid, SIGKILL);
+
+        for (size_t i=0; i<10; ++i)
+        {
+            // Scope for locker
+            {
+                Mutex::Locker locker (m_spawned_pids_mutex);
+                if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+                    return true;
+            }
+            usleep (10000);
+        }
+    }
+    return SendErrorResponse (10);
 }
 
 bool
@@ -738,7 +928,7 @@ GDBRemoteCommunicationServer::Handle_qLaunchSuccess (StringExtractorGDBRemote &p
 {
     if (m_process_launch_error.Success())
         return SendOKResponse();
-    StreamString response;    
+    StreamString response;
     response.PutChar('E');
     response.PutCString(m_process_launch_error.AsCString("<unknown error>"));
     return SendPacketNoLock (response.GetData(), response.GetSize());
@@ -754,7 +944,22 @@ GDBRemoteCommunicationServer::Handle_QEnvironment  (StringExtractorGDBRemote &pa
         m_process_launch_info.GetEnvironmentEntries ().AppendArgument (packet.Peek());
         return SendOKResponse ();
     }
-    return SendErrorResponse (9);
+    return SendErrorResponse (11);
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_QLaunchArch (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen ("QLaunchArch:"));
+    const uint32_t bytes_left = packet.GetBytesLeft();
+    if (bytes_left > 0)
+    {
+        const char* arch_triple = packet.Peek();
+        ArchSpec arch_spec(arch_triple,NULL);
+        m_process_launch_info.SetArchitecture(arch_spec);
+        return SendOKResponse();
+    }
+    return SendErrorResponse(12);
 }
 
 bool
@@ -792,7 +997,7 @@ GDBRemoteCommunicationServer::Handle_QSetSTDIN (StringExtractorGDBRemote &packet
         m_process_launch_info.AppendFileAction(file_action);
         return SendOKResponse ();
     }
-    return SendErrorResponse (10);
+    return SendErrorResponse (13);
 }
 
 bool
@@ -809,7 +1014,7 @@ GDBRemoteCommunicationServer::Handle_QSetSTDOUT (StringExtractorGDBRemote &packe
         m_process_launch_info.AppendFileAction(file_action);
         return SendOKResponse ();
     }
-    return SendErrorResponse (11);
+    return SendErrorResponse (14);
 }
 
 bool
@@ -826,7 +1031,7 @@ GDBRemoteCommunicationServer::Handle_QSetSTDERR (StringExtractorGDBRemote &packe
         m_process_launch_info.AppendFileAction(file_action);
         return SendOKResponse ();
     }
-    return SendErrorResponse (12);
+    return SendErrorResponse (15);
 }
 
 bool
@@ -837,3 +1042,277 @@ GDBRemoteCommunicationServer::Handle_QStartNoAckMode (StringExtractorGDBRemote &
     m_send_acks = false;
     return true;
 }
+
+bool
+GDBRemoteCommunicationServer::Handle_qPlatform_IO_MkDir (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("qPlatform_IO_MkDir:"));
+    mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
+    if (packet.GetChar() != ',')
+        return false;
+    std::string path;
+    packet.GetHexByteString(path);
+    uint32_t retcode = Host::MakeDirectory(path.c_str(),mode);
+    StreamString response;
+    response.PutHex32(retcode);
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_Open (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("vFile:open:"));
+    std::string path;
+    packet.GetHexByteStringTerminatedBy(path,',');
+    if (path.size() == 0)
+        return false;
+    if (packet.GetChar() != ',')
+        return false;
+    uint32_t flags = packet.GetHexMaxU32(false, UINT32_MAX);
+    if (packet.GetChar() != ',')
+        return false;
+    mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
+    Error error;
+    int fd = ::open (path.c_str(), flags, mode);
+    const int save_errno = fd == -1 ? errno : 0;
+    StreamString response;
+    response.PutChar('F');
+    response.Printf("%i", fd);
+    if (save_errno)
+        response.Printf(",%i", save_errno);
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_Close (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("vFile:close:"));
+    int fd = packet.GetS32(-1);
+    Error error;
+    int err = -1;
+    int save_errno = 0;
+    if (fd >= 0)
+    {
+        err = close(fd);
+        save_errno = err == -1 ? errno : 0;
+    }
+    else
+    {
+        save_errno = EINVAL;
+    }
+    StreamString response;
+    response.PutChar('F');
+    response.Printf("%i", err);
+    if (save_errno)
+        response.Printf(",%i", save_errno);
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_pRead (StringExtractorGDBRemote &packet)
+{
+#ifdef _WIN32
+    // Not implemented on Windows
+    return false;
+#else
+    StreamGDBRemote response;
+    packet.SetFilePos(::strlen("vFile:pread:"));
+    int fd = packet.GetS32(-1);
+    if (packet.GetChar() != ',')
+        return false;
+    uint64_t count = packet.GetU64(UINT64_MAX);
+    if (packet.GetChar() != ',')
+        return false;
+    uint64_t offset = packet.GetU64(UINT32_MAX);
+    if (count == UINT64_MAX)
+    {
+        response.Printf("F-1:%i", EINVAL);
+        SendPacketNoLock(response.GetData(), response.GetSize());
+        return true;
+    }
+    std::string buffer(count, 0);
+    const ssize_t bytes_read = ::pread (fd, &buffer[0], buffer.size(), offset);
+    const int save_errno = bytes_read == -1 ? errno : 0;
+    response.PutChar('F');
+    response.Printf("%zi", bytes_read);
+    if (save_errno)
+        response.Printf(",%i", save_errno);
+    else
+    {
+        response.PutChar(';');
+        response.PutEscapedBytes(&buffer[0], bytes_read);
+    }
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+#endif
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_pWrite (StringExtractorGDBRemote &packet)
+{
+#ifdef _WIN32
+    // Not implemented on Windows
+    return false;
+#else
+    packet.SetFilePos(::strlen("vFile:pwrite:"));
+
+    StreamGDBRemote response;
+    response.PutChar('F');
+
+    int fd = packet.GetU32(UINT32_MAX);
+    if (packet.GetChar() != ',')
+        return false;
+    off_t offset = packet.GetU64(UINT32_MAX);
+    if (packet.GetChar() != ',')
+        return false;
+    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);
+    }
+
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+#endif
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_Size (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("vFile:size:"));
+    std::string path;
+    packet.GetHexByteString(path);
+    if (path.empty())
+        return false;
+    lldb::user_id_t retcode = Host::GetFileSize(FileSpec(path.c_str(), false));
+    StreamString response;
+    response.PutChar('F');
+    response.PutHex64(retcode);
+    if (retcode == UINT64_MAX)
+    {
+        response.PutChar(',');
+        response.PutHex64(retcode); // TODO: replace with Host::GetSyswideErrorCode()
+    }
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_Mode (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("vFile:mode:"));
+    std::string path;
+    packet.GetHexByteString(path);
+    if (path.empty())
+        return false;
+    Error error;
+    const uint32_t mode = File::GetPermissions(path.c_str(), error);
+    StreamString response;
+    response.Printf("F%u", mode);
+    if (mode == 0 || error.Fail())
+        response.Printf(",%i", (int)error.GetError());
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_Exists (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("vFile:exists:"));
+    std::string path;
+    packet.GetHexByteString(path);
+    if (path.empty())
+        return false;
+    bool retcode = Host::GetFileExists(FileSpec(path.c_str(), false));
+    StreamString response;
+    response.PutChar('F');
+    response.PutChar(',');
+    if (retcode)
+        response.PutChar('1');
+    else
+        response.PutChar('0');
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_qPlatform_RunCommand (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("qPlatform_RunCommand:"));
+    std::string path;
+    std::string working_dir;
+    packet.GetHexByteStringTerminatedBy(path,',');
+    if (path.size() == 0)
+        return false;
+    if (packet.GetChar() != ',')
+        return false;
+    // FIXME: add timeout to qPlatform_RunCommand packet
+    // uint32_t timeout = packet.GetHexMaxU32(false, 32);
+    uint32_t timeout = 10;
+    if (packet.GetChar() == ',')
+        packet.GetHexByteString(working_dir);
+    int status, signo;
+    std::string output;
+    Error err = Host::RunShellCommand(path.c_str(),
+                                      working_dir.empty() ? NULL : working_dir.c_str(),
+                                      &status, &signo, &output, timeout);
+    StreamGDBRemote response;
+    if (err.Fail())
+    {
+        response.PutCString("F,");
+        response.PutHex32(UINT32_MAX);
+    }
+    else
+    {
+        response.PutCString("F,");
+        response.PutHex32(status);
+        response.PutChar(',');
+        response.PutHex32(signo);
+        response.PutChar(',');
+        response.PutEscapedBytes(output.c_str(), output.size());
+    }
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_Stat (StringExtractorGDBRemote &packet)
+{
+    return false;
+}
+
+bool
+GDBRemoteCommunicationServer::Handle_vFile_MD5 (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen("vFile:exists:"));
+    std::string path;
+    packet.GetHexByteString(path);
+    if (path.size() == 0)
+        return false;
+    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);
+    }
+    SendPacketNoLock(response.GetData(), response.GetSize());
+    return true;
+}
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
index cce0e4e..64f6f8d 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
@@ -12,10 +12,12 @@
 
 // C Includes
 // C++ Includes
+#include <vector>
+#include <set>
 // Other libraries and framework includes
 // Project includes
+#include "lldb/Host/Mutex.h"
 #include "lldb/Target/Process.h"
-
 #include "GDBRemoteCommunication.h"
 
 class ProcessGDBRemote;
@@ -60,6 +62,21 @@ public:
     {
         m_lo_port_num = lo_port_num;
         m_hi_port_num = hi_port_num;
+        m_next_port = m_lo_port_num;
+        m_use_port_range = true;
+    }
+
+    // If we are using a port range, get and update the next port to be used variable.
+    // Otherwise, just return 0.
+    uint16_t
+    GetAndUpdateNextPort ()
+    {
+        if (!m_use_port_range)
+            return 0;
+        uint16_t val = m_next_port;
+        if (++m_next_port > m_hi_port_num)
+            m_next_port = m_lo_port_num;
+        return val;
     }
 
 protected:
@@ -68,11 +85,16 @@ protected:
     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;
     uint16_t m_lo_port_num;
     uint16_t m_hi_port_num;
     //PortToPIDMap m_port_to_pid_map;
+    uint16_t m_next_port;
+    bool m_use_port_range;
+    
 
     size_t
     SendUnimplementedResponse (const char *packet);
@@ -85,7 +107,7 @@ protected:
 
     bool
     Handle_A (StringExtractorGDBRemote &packet);
-
+    
     bool
     Handle_qLaunchSuccess (StringExtractorGDBRemote &packet);
 
@@ -94,8 +116,14 @@ protected:
     
     bool
     Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet);
+    
+    bool
+    Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet);
 
     bool
+    Handle_qPlatform_IO_MkDir (StringExtractorGDBRemote &packet);
+    
+    bool
     Handle_qProcessInfoPID (StringExtractorGDBRemote &packet);
     
     bool
@@ -120,6 +148,9 @@ protected:
     Handle_QEnvironment  (StringExtractorGDBRemote &packet);
     
     bool
+    Handle_QLaunchArch (StringExtractorGDBRemote &packet);
+    
+    bool
     Handle_QSetDisableASLR (StringExtractorGDBRemote &packet);
 
     bool
@@ -137,7 +168,47 @@ protected:
     bool
     Handle_QSetSTDERR (StringExtractorGDBRemote &packet);
     
+    bool
+    Handle_vFile_Open (StringExtractorGDBRemote &packet);
+
+    bool
+    Handle_vFile_Close (StringExtractorGDBRemote &packet);
+
+    bool
+    Handle_vFile_pRead (StringExtractorGDBRemote &packet);
+
+    bool
+    Handle_vFile_pWrite (StringExtractorGDBRemote &packet);
+
+    bool
+    Handle_vFile_Size (StringExtractorGDBRemote &packet);
+    
+    bool
+    Handle_vFile_Mode (StringExtractorGDBRemote &packet);
+
+    bool
+    Handle_vFile_Exists (StringExtractorGDBRemote &packet);
+
+    bool
+    Handle_vFile_Stat (StringExtractorGDBRemote &packet);
+    
+    bool
+    Handle_vFile_MD5 (StringExtractorGDBRemote &packet);
+    
+    bool
+    Handle_qPlatform_RunCommand (StringExtractorGDBRemote &packet);
+
 private:
+    bool
+    DebugserverProcessReaped (lldb::pid_t pid);
+    
+    static bool
+    ReapDebugserverProcess (void *callback_baton,
+                            lldb::pid_t pid,
+                            bool exited,
+                            int signal,
+                            int status);
+
     //------------------------------------------------------------------
     // For GDBRemoteCommunicationServer only
     //------------------------------------------------------------------
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
index b1612a5..c4e468f 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
@@ -17,6 +17,9 @@
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Core/Scalar.h"
 #include "lldb/Core/StreamString.h"
+#ifndef LLDB_DISABLE_PYTHON
+#include "lldb/Interpreter/PythonDataObjects.h"
+#endif
 #include "lldb/Target/ExecutionContext.h"
 #include "lldb/Utility/Utils.h"
 // Project includes
@@ -54,7 +57,7 @@ GDBRemoteRegisterContext::GDBRemoteRegisterContext
     // Make a heap based buffer that is big enough to store all registers
     DataBufferSP reg_data_sp(new DataBufferHeap (reg_info.GetRegisterDataByteSize(), 0));
     m_reg_data.SetData (reg_data_sp);
-
+    m_reg_data.SetByteOrder(thread.GetProcess()->GetByteOrder());
 }
 
 //----------------------------------------------------------------------
@@ -696,6 +699,7 @@ GDBRemoteRegisterContext::ConvertRegisterKindToRegisterNumber (uint32_t kind, ui
     return m_reg_info.ConvertRegisterKindToRegisterNumber (kind, num);
 }
 
+
 void
 GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch)
 {
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
index 3110ddf..7a49d69 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
@@ -21,23 +21,20 @@
 #include "lldb/Core/ConstString.h"
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Target/RegisterContext.h"
+#include "Plugins/Process/Utility/DynamicRegisterInfo.h"
+
 #include "GDBRemoteCommunicationClient.h"
 
 class ThreadGDBRemote;
 class ProcessGDBRemote;
 class StringExtractor;
 
-class GDBRemoteDynamicRegisterInfo
+class GDBRemoteDynamicRegisterInfo :
+    public DynamicRegisterInfo
 {
 public:
     GDBRemoteDynamicRegisterInfo () :
-        m_regs (),
-        m_sets (),
-        m_set_reg_nums (),
-        m_reg_names (),
-        m_reg_alt_names (),
-        m_set_names (),
-        m_reg_data_byte_size (0)
+        DynamicRegisterInfo()
     {
     }
 
@@ -46,151 +43,8 @@ public:
     }
 
     void
-    AddRegister (lldb_private::RegisterInfo reg_info, 
-                 lldb_private::ConstString &reg_name, 
-                 lldb_private::ConstString &reg_alt_name, 
-                 lldb_private::ConstString &set_name)
-    {
-        const uint32_t reg_num = (uint32_t)m_regs.size();
-        m_reg_names.push_back (reg_name);
-        m_reg_alt_names.push_back (reg_alt_name);
-        reg_info.name = reg_name.AsCString();
-        assert (reg_info.name);
-        reg_info.alt_name = reg_alt_name.AsCString(NULL);
-        uint32_t i;
-        if (reg_info.value_regs)
-        {
-            for (i=0; reg_info.value_regs[i] != LLDB_INVALID_REGNUM; ++i)
-                m_value_regs_map[reg_num].push_back(reg_info.value_regs[i]);
-            m_value_regs_map[reg_num].push_back(LLDB_INVALID_REGNUM);
-            reg_info.value_regs = m_value_regs_map[reg_num].data();
-        }
-        if (reg_info.invalidate_regs)
-        {
-            for (i=0; reg_info.invalidate_regs[i] != LLDB_INVALID_REGNUM; ++i)
-                m_invalidate_regs_map[reg_num].push_back(reg_info.invalidate_regs[i]);
-            m_invalidate_regs_map[reg_num].push_back(LLDB_INVALID_REGNUM);
-            reg_info.invalidate_regs = m_invalidate_regs_map[reg_num].data();
-        }
-        m_regs.push_back (reg_info);
-        uint32_t set = GetRegisterSetIndexByName (set_name);
-        assert (set < m_sets.size());
-        assert (set < m_set_reg_nums.size());
-        assert (set < m_set_names.size());
-        m_set_reg_nums[set].push_back(reg_num);
-        size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size;
-        if (m_reg_data_byte_size < end_reg_offset)
-            m_reg_data_byte_size = end_reg_offset;
-    }
-
-    void
-    Finalize ()
-    {
-        for (uint32_t set = 0; set < m_sets.size(); ++set)
-        {
-            assert (m_sets.size() == m_set_reg_nums.size());
-            m_sets[set].num_registers = m_set_reg_nums[set].size();
-            m_sets[set].registers = &m_set_reg_nums[set][0];
-        }
-    }
-
-    size_t
-    GetNumRegisters() const
-    {
-        return m_regs.size();
-    }
-
-    size_t
-    GetNumRegisterSets() const
-    {
-        return m_sets.size();
-    }
-
-    size_t
-    GetRegisterDataByteSize() const
-    {
-        return m_reg_data_byte_size;
-    }
-
-    const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (uint32_t i) const
-    {
-        if (i < m_regs.size())
-            return &m_regs[i];
-        return NULL;
-    }
-
-    const lldb_private::RegisterSet *
-    GetRegisterSet (uint32_t i) const
-    {
-        if (i < m_sets.size())
-            return &m_sets[i];
-        return NULL;
-    }
-
-    uint32_t
-    GetRegisterSetIndexByName (lldb_private::ConstString &set_name)
-    {
-        name_collection::iterator pos, end = m_set_names.end();
-        for (pos = m_set_names.begin(); pos != end; ++pos)
-        {
-            if (*pos == set_name)
-                return static_cast<uint32_t>(std::distance (m_set_names.begin(), pos));
-        }
-
-        m_set_names.push_back(set_name);
-        m_set_reg_nums.resize(m_set_reg_nums.size()+1);
-        lldb_private::RegisterSet new_set = { set_name.AsCString(), NULL, 0, NULL };
-        m_sets.push_back (new_set);
-        return static_cast<uint32_t>(m_sets.size() - 1);
-    }
-
-    uint32_t
-    ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num) const
-    {
-        reg_collection::const_iterator pos, end = m_regs.end();
-        for (pos = m_regs.begin(); pos != end; ++pos)
-        {
-            if (pos->kinds[kind] == num)
-                return static_cast<uint32_t>(std::distance (m_regs.begin(), pos));
-        }
-
-        return LLDB_INVALID_REGNUM;
-    }
-    void
-    Clear()
-    {
-        m_regs.clear();
-        m_sets.clear();
-        m_set_reg_nums.clear();
-        m_reg_names.clear();
-        m_reg_alt_names.clear();
-        m_set_names.clear();
-    }
-
-    void
     HardcodeARMRegisters(bool from_scratch);
 
-protected:
-    //------------------------------------------------------------------
-    // Classes that inherit from GDBRemoteRegisterContext can see and modify these
-    //------------------------------------------------------------------
-    typedef std::vector <lldb_private::RegisterInfo> reg_collection;
-    typedef std::vector <lldb_private::RegisterSet> set_collection;
-    typedef std::vector <uint32_t> reg_num_collection;
-    typedef std::vector <reg_num_collection> set_reg_num_collection;
-    typedef std::vector <lldb_private::ConstString> name_collection;
-    typedef std::map<uint32_t, reg_num_collection> reg_to_regs_map;
-
-    reg_collection m_regs;
-    set_collection m_sets;
-    set_reg_num_collection m_set_reg_nums;
-    name_collection m_reg_names;
-    name_collection m_reg_alt_names;
-    name_collection m_set_names;
-    reg_to_regs_map m_value_regs_map;
-    reg_to_regs_map m_invalidate_regs_map;
-    size_t m_reg_data_byte_size;   // The number of bytes required to store all registers
 };
 
 class GDBRemoteRegisterContext : public lldb_private::RegisterContext
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
index 89da55a..4aa1864 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -8,13 +8,16 @@
 //===----------------------------------------------------------------------===//
 
 #include "lldb/lldb-python.h"
+#include "lldb/Host/Config.h"
 
 // C Includes
 #include <errno.h>
-#include <spawn.h>
 #include <stdlib.h>
+#ifndef LLDB_DISABLE_POSIX
+#include <spawn.h>
 #include <netinet/in.h>
 #include <sys/mman.h>       // for mmap
+#endif
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <time.h>
@@ -46,6 +49,9 @@
 #include "lldb/Interpreter/CommandObject.h"
 #include "lldb/Interpreter/CommandObjectMultiword.h"
 #include "lldb/Interpreter/CommandReturnObject.h"
+#ifndef LLDB_DISABLE_PYTHON
+#include "lldb/Interpreter/PythonDataObjects.h"
+#endif
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Target/DynamicLoader.h"
 #include "lldb/Target/Target.h"
@@ -93,12 +99,14 @@ namespace {
     g_properties[] =
     {
         { "packet-timeout" , OptionValue::eTypeUInt64 , true , 1, NULL, NULL, "Specify the default packet timeout in seconds." },
+        { "target-definition-file" , OptionValue::eTypeFileSpec , true, 0 , NULL, NULL, "The file that provides the description for remote target registers." },
         {  NULL            , OptionValue::eTypeInvalid, false, 0, NULL, NULL, NULL  }
     };
     
     enum
     {
-        ePropertyPacketTimeout
+        ePropertyPacketTimeout,
+        ePropertyTargetDefinitionFile
     };
     
     class PluginProperties : public Properties
@@ -129,6 +137,20 @@ namespace {
             const uint32_t idx = ePropertyPacketTimeout;
             return m_collection_sp->GetPropertyAtIndexAsUInt64(NULL, idx, g_properties[idx].default_uint_value);
         }
+
+        bool
+        SetPacketTimeout(uint64_t timeout)
+        {
+            const uint32_t idx = ePropertyPacketTimeout;
+            return m_collection_sp->SetPropertyAtIndexAsUInt64(NULL, idx, timeout);
+        }
+
+        FileSpec
+        GetTargetDefinitionFile () const
+        {
+            const uint32_t idx = ePropertyTargetDefinitionFile;
+            return m_collection_sp->GetPropertyAtIndexAsFileSpec (NULL, idx);
+        }
     };
     
     typedef std::shared_ptr<PluginProperties> ProcessKDPPropertiesSP;
@@ -253,13 +275,13 @@ ProcessGDBRemote::ProcessGDBRemote(Target& target, Listener &listener) :
     m_continue_C_tids (),
     m_continue_s_tids (),
     m_continue_S_tids (),
-    m_dispatch_queue_offsets_addr (LLDB_INVALID_ADDRESS),
     m_max_memory_size (512),
     m_addr_to_mmap_size (),
     m_thread_create_bp_sp (),
     m_waiting_for_attach (false),
     m_destroy_tried_resuming (false),
-    m_command_sp ()
+    m_command_sp (),
+    m_breakpoint_pc_offset (0)
 {
     m_async_broadcaster.SetEventName (eBroadcastBitAsyncThreadShouldExit,   "async thread should exit");
     m_async_broadcaster.SetEventName (eBroadcastBitAsyncContinue,           "async thread continue");
@@ -304,6 +326,48 @@ ProcessGDBRemote::GetPluginVersion()
     return 1;
 }
 
+bool
+ProcessGDBRemote::ParsePythonTargetDefinition(const FileSpec &target_definition_fspec)
+{
+#ifndef LLDB_DISABLE_PYTHON
+    ScriptInterpreter *interpreter = GetTarget().GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
+    Error error;
+    lldb::ScriptInterpreterObjectSP module_object_sp (interpreter->LoadPluginModule(target_definition_fspec, error));
+    if (module_object_sp)
+    {
+        lldb::ScriptInterpreterObjectSP target_definition_sp (interpreter->GetDynamicSettings(module_object_sp,
+                                                                                              &GetTarget(),
+                                                                                              "gdb-server-target-definition",
+                                                                                              error));
+        
+        PythonDictionary target_dict(target_definition_sp);
+
+        if (target_dict)
+        {
+            PythonDictionary host_info_dict (target_dict.GetItemForKey("host-info"));
+            if (host_info_dict)
+            {
+                ArchSpec host_arch (host_info_dict.GetItemForKeyAsString(PythonString("triple")));
+                
+                if (!host_arch.IsCompatibleMatch(GetTarget().GetArchitecture()))
+                {
+                    GetTarget().SetArchitecture(host_arch);
+                }
+                    
+            }
+            m_breakpoint_pc_offset = target_dict.GetItemForKeyAsInteger("breakpoint-pc-offset", 0);
+
+            if (m_register_info.SetRegisterInfo (target_dict, GetTarget().GetArchitecture().GetByteOrder()) > 0)
+            {
+                return true;
+            }
+        }
+    }
+#endif
+    return false;
+}
+
+
 void
 ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
 {
@@ -479,6 +543,28 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
         }
     }
 
+    // Check if qHostInfo specified a specific packet timeout for this connection.
+    // If so then lets update our setting so the user knows what the timeout is
+    // and can see it.
+    const uint32_t host_packet_timeout = m_gdb_comm.GetHostDefaultPacketTimeout();
+    if (host_packet_timeout)
+    {
+        GetGlobalPluginProperties()->SetPacketTimeout(host_packet_timeout);
+    }
+    
+
+    if (reg_num == 0)
+    {
+        FileSpec target_definition_fspec = GetGlobalPluginProperties()->GetTargetDefinitionFile ();
+        
+        if (target_definition_fspec)
+        {
+            // See if we can get register definitions from a python file
+            if (ParsePythonTargetDefinition (target_definition_fspec))
+                return;
+        }
+    }
+
     // We didn't get anything if the accumulated reg_num is zero.  See if we are
     // debugging ARM and fill with a hard coded register set until we can get an
     // updated debugserver down on the devices.
@@ -560,6 +646,11 @@ ProcessGDBRemote::DoConnectRemote (Stream *strm, const char *remote_url)
         GetThreadList();
         if (m_gdb_comm.SendPacketAndWaitForResponse("?", 1, m_last_stop_packet, false))
         {
+            if (!m_target.GetArchitecture().IsValid()) { // Make sure we have an architecture
+               m_target.SetArchitecture(m_gdb_comm.GetProcessArchitecture());
+            }
+
+
             const StateType state = SetThreadStopInfo (m_last_stop_packet);
             if (state == eStateStopped)
             {
@@ -758,6 +849,10 @@ ProcessGDBRemote::DoLaunch (Module *exe_module, const ProcessLaunchInfo &launch_
 
             if (m_gdb_comm.SendPacketAndWaitForResponse("?", 1, m_last_stop_packet, false))
             {
+                if (!m_target.GetArchitecture().IsValid()) { // Make sure we have an architecture
+                   m_target.SetArchitecture(m_gdb_comm.GetProcessArchitecture());
+                }
+
                 SetPrivateState (SetThreadStopInfo (m_last_stop_packet));
                 
                 if (!disable_stdio)
@@ -862,8 +957,6 @@ ProcessGDBRemote::DidLaunchOrAttach ()
         log->Printf ("ProcessGDBRemote::DidLaunch()");
     if (GetID() != LLDB_INVALID_PROCESS_ID)
     {
-        m_dispatch_queue_offsets_addr = LLDB_INVALID_ADDRESS;
-
         BuildDynamicRegisterInfo (false);
 
         // See if the GDB server supports the qHostInfo information
@@ -1653,7 +1746,7 @@ ProcessGDBRemote::SetThreadStopInfo (StringExtractor& stop_packet)
                             // Currently we are going to assume SIGTRAP means we are either
                             // hitting a breakpoint or hardware single stepping. 
                             handled = true;
-                            addr_t pc = thread_sp->GetRegisterContext()->GetPC();
+                            addr_t pc = thread_sp->GetRegisterContext()->GetPC() + m_breakpoint_pc_offset;
                             lldb::BreakpointSiteSP bp_site_sp = thread_sp->GetProcess()->GetBreakpointSiteList().FindByAddress(pc);
                             
                             if (bp_site_sp)
@@ -1663,6 +1756,8 @@ ProcessGDBRemote::SetThreadStopInfo (StringExtractor& stop_packet)
                                 // will be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
                                 if (bp_site_sp->ValidForThisThread (thread_sp.get()))
                                 {
+                                    if(m_breakpoint_pc_offset != 0)
+                                        thread_sp->GetRegisterContext()->SetPC(pc);
                                     thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID (*thread_sp, bp_site_sp->GetID()));
                                 }
                                 else
@@ -2221,7 +2316,7 @@ ProcessGDBRemote::EnableBreakpointSite (BreakpointSite *bp_site)
     {
         const size_t bp_op_size = GetSoftwareBreakpointTrapOpcode (bp_site);
 
-        if (bp_site->HardwarePreferred())
+        if (bp_site->HardwareRequired())
         {
             // Try and set hardware breakpoint, and if that fails, fall through
             // and set a software breakpoint?
@@ -2231,12 +2326,19 @@ ProcessGDBRemote::EnableBreakpointSite (BreakpointSite *bp_site)
                 {
                     bp_site->SetEnabled(true);
                     bp_site->SetType (BreakpointSite::eHardware);
-                    return error;
                 }
+                else
+                {
+                    error.SetErrorString("failed to set hardware breakpoint (hardware breakpoint resources might be exhausted or unavailable)");
+                }
+            }
+            else
+            {
+                error.SetErrorString("hardware breakpoints are not supported");
             }
+            return error;
         }
-
-        if (m_gdb_comm.SupportsGDBStoppointPacket (eBreakpointSoftware))
+        else if (m_gdb_comm.SupportsGDBStoppointPacket (eBreakpointSoftware))
         {
             if (m_gdb_comm.SendGDBStoppointTypePacket(eBreakpointSoftware, true, addr, bp_op_size) == 0)
             {
@@ -2688,7 +2790,7 @@ ProcessGDBRemote::KillDebugserverProcess ()
 {
     if (m_debugserver_pid != LLDB_INVALID_PROCESS_ID)
     {
-        ::kill (m_debugserver_pid, SIGINT);
+        Host::Kill (m_debugserver_pid, SIGINT);
         m_debugserver_pid = LLDB_INVALID_PROCESS_ID;
     }
 }
@@ -2795,7 +2897,7 @@ ProcessGDBRemote::StopAsyncThread ()
 }
 
 
-void *
+thread_result_t
 ProcessGDBRemote::AsyncThread (void *arg)
 {
     ProcessGDBRemote *process = (ProcessGDBRemote*) arg;
@@ -2917,97 +3019,6 @@ ProcessGDBRemote::AsyncThread (void *arg)
     return NULL;
 }
 
-const char *
-ProcessGDBRemote::GetDispatchQueueNameForThread
-(
-    addr_t thread_dispatch_qaddr,
-    std::string &dispatch_queue_name
-)
-{
-    dispatch_queue_name.clear();
-    if (thread_dispatch_qaddr != 0 && thread_dispatch_qaddr != LLDB_INVALID_ADDRESS)
-    {
-        // Cache the dispatch_queue_offsets_addr value so we don't always have
-        // to look it up
-        if (m_dispatch_queue_offsets_addr == LLDB_INVALID_ADDRESS)
-        {
-            static ConstString g_dispatch_queue_offsets_symbol_name ("dispatch_queue_offsets");
-            const Symbol *dispatch_queue_offsets_symbol = NULL;
-            ModuleSpec libSystem_module_spec (FileSpec("libSystem.B.dylib", false));
-            ModuleSP module_sp(GetTarget().GetImages().FindFirstModule (libSystem_module_spec));
-            if (module_sp)
-                dispatch_queue_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType (g_dispatch_queue_offsets_symbol_name, eSymbolTypeData);
-            
-            if (dispatch_queue_offsets_symbol == NULL)
-            {
-                ModuleSpec libdispatch_module_spec (FileSpec("libdispatch.dylib", false));
-                module_sp = GetTarget().GetImages().FindFirstModule (libdispatch_module_spec);
-                if (module_sp)
-                    dispatch_queue_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType (g_dispatch_queue_offsets_symbol_name, eSymbolTypeData);
-            }
-            if (dispatch_queue_offsets_symbol)
-                m_dispatch_queue_offsets_addr = dispatch_queue_offsets_symbol->GetAddress().GetLoadAddress(&m_target);
-
-            if (m_dispatch_queue_offsets_addr == LLDB_INVALID_ADDRESS)
-                return NULL;
-        }
-
-        uint8_t memory_buffer[8];
-        DataExtractor data (memory_buffer, 
-                            sizeof(memory_buffer), 
-                            m_target.GetArchitecture().GetByteOrder(), 
-                            m_target.GetArchitecture().GetAddressByteSize());
-
-        // Excerpt from src/queue_private.h
-        struct dispatch_queue_offsets_s
-        {
-            uint16_t dqo_version;
-            uint16_t dqo_label;      // in version 1-3, offset to string; in version 4+, offset to a pointer to a string
-            uint16_t dqo_label_size; // in version 1-3, length of string; in version 4+, size of a (void*) in this process
-        } dispatch_queue_offsets;
-
-
-        Error error;
-        if (ReadMemory (m_dispatch_queue_offsets_addr, memory_buffer, sizeof(dispatch_queue_offsets), error) == sizeof(dispatch_queue_offsets))
-        {
-            lldb::offset_t data_offset = 0;
-            if (data.GetU16(&data_offset, &dispatch_queue_offsets.dqo_version, sizeof(dispatch_queue_offsets)/sizeof(uint16_t)))
-            {
-                if (ReadMemory (thread_dispatch_qaddr, &memory_buffer, data.GetAddressByteSize(), error) == data.GetAddressByteSize())
-                {
-                    data_offset = 0;
-                    lldb::addr_t queue_addr = data.GetAddress(&data_offset);
-                    if (dispatch_queue_offsets.dqo_version >= 4)
-                    {
-                        // libdispatch versions 4+, pointer to dispatch name is in the 
-                        // queue structure.
-                        lldb::addr_t pointer_to_label_address = queue_addr + dispatch_queue_offsets.dqo_label;
-                        if (ReadMemory (pointer_to_label_address, &memory_buffer, data.GetAddressByteSize(), error) == data.GetAddressByteSize())
-                        {
-                            data_offset = 0;
-                            lldb::addr_t label_addr = data.GetAddress(&data_offset);
-                            ReadCStringFromMemory (label_addr, dispatch_queue_name, error);
-                        }
-                    }
-                    else
-                    {
-                        // libdispatch versions 1-3, dispatch name is a fixed width char array
-                        // in the queue structure.
-                        lldb::addr_t label_addr = queue_addr + dispatch_queue_offsets.dqo_label;
-                        dispatch_queue_name.resize(dispatch_queue_offsets.dqo_label_size, '\0');
-                        size_t bytes_read = ReadMemory (label_addr, &dispatch_queue_name[0], dispatch_queue_offsets.dqo_label_size, error);
-                        if (bytes_read < dispatch_queue_offsets.dqo_label_size)
-                            dispatch_queue_name.erase (bytes_read);
-                    }
-                }
-            }
-        }
-    }
-    if (dispatch_queue_name.empty())
-        return NULL;
-    return dispatch_queue_name.c_str();
-}
-
 //uint32_t
 //ProcessGDBRemote::ListProcessesMatchingName (const char *name, StringList &matches, std::vector<lldb::pid_t> &pids)
 //{
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
index e104b71..b18ac5b 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
@@ -291,6 +291,12 @@ protected:
     void
     SetLastStopPacket (const StringExtractorGDBRemote &response);
 
+    bool
+    ParsePythonTargetDefinition(const lldb_private::FileSpec &target_definition_fspec);
+    
+    bool
+    ParseRegisters(lldb_private::ScriptInterpreterObject *registers_array);
+
     //------------------------------------------------------------------
     /// Broadcaster event bits definitions.
     //------------------------------------------------------------------
@@ -326,13 +332,13 @@ protected:
     tid_sig_collection m_continue_C_tids; // 'C' for continue with signal
     tid_collection m_continue_s_tids;                  // 's' for step
     tid_sig_collection m_continue_S_tids; // 'S' for step with signal
-    lldb::addr_t m_dispatch_queue_offsets_addr;
     size_t m_max_memory_size;       // The maximum number of bytes to read/write when reading and writing memory
     MMapMap m_addr_to_mmap_size;
     lldb::BreakpointSP m_thread_create_bp_sp;
     bool m_waiting_for_attach;
     bool m_destroy_tried_resuming;
     lldb::CommandObjectSP m_command_sp;
+    int64_t m_breakpoint_pc_offset;
     
     bool
     StartAsyncThread ();
@@ -340,7 +346,7 @@ protected:
     void
     StopAsyncThread ();
 
-    static void *
+    static lldb::thread_result_t
     AsyncThread (void *arg);
 
     static bool
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
index 38fb84d..4e475c8 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
@@ -10,16 +10,17 @@
 
 #include "ThreadGDBRemote.h"
 
+#include "lldb/Breakpoint/Watchpoint.h"
 #include "lldb/Core/ArchSpec.h"
 #include "lldb/Core/DataExtractor.h"
-#include "lldb/Core/StreamString.h"
 #include "lldb/Core/State.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Target/Platform.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/RegisterContext.h"
 #include "lldb/Target/StopInfo.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Unwind.h"
-#include "lldb/Breakpoint/Watchpoint.h"
 
 #include "ProcessGDBRemote.h"
 #include "ProcessGDBRemoteLog.h"
@@ -73,13 +74,38 @@ ThreadGDBRemote::GetQueueName ()
         ProcessSP process_sp (GetProcess());
         if (process_sp)
         {
-            ProcessGDBRemote *gdb_process = static_cast<ProcessGDBRemote *>(process_sp.get());
-            return gdb_process->GetDispatchQueueNameForThread (m_thread_dispatch_qaddr, m_dispatch_queue_name);
+            PlatformSP platform_sp (process_sp->GetTarget().GetPlatform());
+            if (platform_sp)
+            {
+                m_dispatch_queue_name = platform_sp->GetQueueNameForThreadQAddress (process_sp.get(), m_thread_dispatch_qaddr);
+            }
+            if (m_dispatch_queue_name.length() > 0)
+            {
+                return m_dispatch_queue_name.c_str();
+            }
         }
     }
     return NULL;
 }
 
+queue_id_t
+ThreadGDBRemote::GetQueueID ()
+{
+    if (m_thread_dispatch_qaddr != 0 || m_thread_dispatch_qaddr != LLDB_INVALID_ADDRESS)
+    {
+        ProcessSP process_sp (GetProcess());
+        if (process_sp)
+        {
+            PlatformSP platform_sp (process_sp->GetTarget().GetPlatform());
+            if (platform_sp)
+            {
+                return platform_sp->GetQueueIDForThreadQAddress (process_sp.get(), m_thread_dispatch_qaddr);
+            }
+        }
+    }
+    return LLDB_INVALID_QUEUE_ID;
+}
+
 void
 ThreadGDBRemote::WillResume (StateType resume_state)
 {
@@ -164,7 +190,6 @@ lldb::RegisterContextSP
 ThreadGDBRemote::CreateRegisterContextForFrame (StackFrame *frame)
 {
     lldb::RegisterContextSP reg_ctx_sp;
-    const bool read_all_registers_at_once = false;
     uint32_t concrete_frame_idx = 0;
     
     if (frame)
@@ -177,6 +202,8 @@ ThreadGDBRemote::CreateRegisterContextForFrame (StackFrame *frame)
         if (process_sp)
         {
             ProcessGDBRemote *gdb_process = static_cast<ProcessGDBRemote *>(process_sp.get());
+            // read_all_registers_at_once will be true if 'p' packet is not supported.
+            bool read_all_registers_at_once = !gdb_process->GetGDBRemote().GetpPacketSupported (GetID());
             reg_ctx_sp.reset (new GDBRemoteRegisterContext (*this, concrete_frame_idx, gdb_process->m_register_info, read_all_registers_at_once));
         }
     }
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
index 50a3f19..dd4cc03 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
@@ -38,6 +38,9 @@ public:
     virtual const char *
     GetQueueName ();
 
+    virtual lldb::queue_id_t
+    GetQueueID ();
+
     virtual lldb::RegisterContextSP
     GetRegisterContext ();