Update LLDB snapshot to upstream r216948 (git 50f7fe44)

This is approximately "LLDB 3.5" although with a little bit of skew,
and will go along with the Clang 3.5 import.

Sponsored by:	DARPA, AFRL

1 files changed, 104 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.h b/contrib/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.h
new file mode 100644
index 0000000..5fa66b8
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.h
@@ -0,0 +1,104 @@
+//===-- JITLoaderGDB.h ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_JITLoaderGDB_h_
+#define liblldb_JITLoaderGDB_h_
+
+// C Includes
+// C++ Includes
+#include <map>
+#include <vector>
+#include <string>
+
+#include "lldb/Target/JITLoader.h"
+#include "lldb/Target/Process.h"
+
+class JITLoaderGDB : public lldb_private::JITLoader
+{
+public:
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+
+    static void
+    Terminate();
+
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+
+    static const char *
+    GetPluginDescriptionStatic();
+
+    static lldb::JITLoaderSP
+    CreateInstance (lldb_private::Process *process, bool force);
+
+    JITLoaderGDB (lldb_private::Process *process);
+
+    virtual
+    ~JITLoaderGDB ();
+
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    virtual lldb_private::ConstString
+    GetPluginName();
+
+    virtual uint32_t
+    GetPluginVersion();
+
+    //------------------------------------------------------------------
+    // JITLoader interface
+    //------------------------------------------------------------------
+    virtual void
+    DidAttach ();
+
+    virtual void
+    DidLaunch ();
+
+    virtual void
+    ModulesDidLoad (lldb_private::ModuleList &module_list);
+
+private:
+    lldb::addr_t
+    GetSymbolAddress(lldb_private::ModuleList &module_list,
+                     const lldb_private::ConstString &name,
+                     lldb::SymbolType symbol_type) const;
+
+    void
+    SetJITBreakpoint(lldb_private::ModuleList &module_list);
+
+    bool
+    DidSetJITBreakpoint() const;
+
+    bool
+    ReadJITDescriptor(bool all_entries);
+
+    static bool
+    JITDebugBreakpointHit(void *baton,
+                          lldb_private::StoppointCallbackContext *context,
+                          lldb::user_id_t break_id,
+                          lldb::user_id_t break_loc_id);
+
+    static void
+    ProcessStateChangedCallback(void *baton,
+                                lldb_private::Process *process,
+                                lldb::StateType state);
+
+    // A collection of in-memory jitted object addresses and their corresponding modules
+    typedef std::map<lldb::addr_t, const lldb::ModuleSP> JITObjectMap;
+    JITObjectMap m_jit_objects;
+
+    lldb::user_id_t m_jit_break_id;
+    lldb::addr_t m_jit_descriptor_addr;
+
+};
+
+#endif