MFC r258054: Update LLDB to upstream r194122 snapshot

  Inludes 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

1 files changed, 73 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Target/SystemRuntime.cpp b/contrib/llvm/tools/lldb/source/Target/SystemRuntime.cpp
new file mode 100644
index 0000000..7ce150f
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Target/SystemRuntime.cpp
@@ -0,0 +1,73 @@
+//===-- SystemRuntime.cpp ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-private.h"
+#include "lldb/Target/SystemRuntime.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Core/PluginManager.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+SystemRuntime*
+SystemRuntime::FindPlugin (Process *process)
+{
+    SystemRuntimeCreateInstance create_callback = NULL;
+    for (uint32_t idx = 0; (create_callback = PluginManager::GetSystemRuntimeCreateCallbackAtIndex(idx)) != NULL; ++idx)
+    {
+        std::unique_ptr<SystemRuntime> instance_ap(create_callback(process));
+        if (instance_ap.get())
+            return instance_ap.release();
+    }
+    return NULL;
+}
+
+
+//----------------------------------------------------------------------
+// SystemRuntime constructor
+//----------------------------------------------------------------------
+SystemRuntime::SystemRuntime(Process *process) :
+    m_process (process)
+{
+}
+
+//----------------------------------------------------------------------
+// Destructor
+//----------------------------------------------------------------------
+SystemRuntime::~SystemRuntime()
+{
+}
+
+void
+SystemRuntime::DidAttach ()
+{
+}
+
+void
+SystemRuntime::DidLaunch()
+{
+}
+
+void
+SystemRuntime::ModulesDidLoad (ModuleList &module_list)
+{
+}
+
+std::vector<ConstString>
+SystemRuntime::GetExtendedBacktraceTypes ()
+{
+    std::vector<ConstString> types;
+    return types;
+}
+
+ThreadSP
+SystemRuntime::GetExtendedBacktrace (ThreadSP thread, ConstString type)
+{
+    return ThreadSP();
+}