Identify a kdp session that is connecting to an EFI monitor,

use a DynamicLoaderStatic dynamic loader for the session
instead of a kernel or user dynamic loader.

llvm-svn: 166652

lldb/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp

@@ -525,6 +525,17 @@ CommunicationKDP::GetUUID ()
     return uuid;
 }
 
+bool
+CommunicationKDP::RemoteIsEFI ()
+{
+    if (GetKernelVersion() == NULL)
+        return false;
+    if (strncmp (m_kernel_version.c_str(), "EFI", 3) == 0)
+        return true;
+    else
+        return false;
+}
+
 lldb::addr_t
 CommunicationKDP::GetLoadAddress ()
 {

lldb/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.h

@@ -223,6 +223,9 @@ public:
     lldb_private::UUID 
     GetUUID ();
 
+    bool
+    RemoteIsEFI ();
+
     lldb::addr_t
     GetLoadAddress ();
 

lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp

@@ -38,6 +38,7 @@
 #include "ProcessKDPLog.h"
 #include "ThreadKDP.h"
 #include "Plugins/DynamicLoader/Darwin-Kernel/DynamicLoaderDarwinKernel.h"
+#include "Plugins/DynamicLoader/Static/DynamicLoaderStatic.h"
 #include "Utility/StringExtractor.h"
 
 using namespace lldb;
@@ -229,12 +230,17 @@ ProcessKDP::DoConnectRemote (Stream *strm, const char *remote_url)
                     kernel_arch.SetArchitecture(eArchTypeMachO, cpu, sub);
                     m_target.SetArchitecture(kernel_arch);
 
-                    /* Get the kernel's UUID and load address via kdp-kernelversion packet.  */
+                    /* Get the kernel's UUID and load address via KDP_KERNELVERSION packet.  */
+                    /* An EFI kdp session has neither UUID nor load address. */
 
                     UUID kernel_uuid = m_comm.GetUUID ();
                     addr_t kernel_load_addr = m_comm.GetLoadAddress ();
 
-                    if (kernel_load_addr != LLDB_INVALID_ADDRESS)
+                    if (m_comm.RemoteIsEFI ())
+                    {
+                        m_dyld_plugin_name = DynamicLoaderStatic::GetPluginNameStatic();
+                    }
+                    else if (kernel_load_addr != LLDB_INVALID_ADDRESS)
                     {
                         m_kernel_load_addr = kernel_load_addr;
                         m_dyld_plugin_name = DynamicLoaderDarwinKernel::GetPluginNameStatic();