1 files changed, 174 insertions, 0 deletions
diff --git a/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h b/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h
new file mode 100644
index 00000000000..e8862d6166b
--- /dev/null
+++ b/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h
@@ -0,0 +1,174 @@
+//===-- SystemRuntimeMacOSX.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_SystemRuntimeMacOSX_h_
+#define liblldb_SystemRuntimeMacOSX_h_
+
+// C Includes
+// C++ Includes
+#include <map>
+#include <vector>
+#include <string>
+
+// Other libraries and framework includes
+#include "llvm/Support/MachO.h"
+
+#include "lldb/Target/SystemRuntime.h"
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/ModuleList.h"
+#include "lldb/Core/UUID.h"
+#include "lldb/Host/Mutex.h"
+#include "lldb/Target/Process.h"
+
+class SystemRuntimeMacOSX : public lldb_private::SystemRuntime
+{
+public:
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+
+    static void
+    Terminate();
+
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+
+    static const char *
+    GetPluginDescriptionStatic();
+
+    static lldb_private::SystemRuntime *
+    CreateInstance (lldb_private::Process *process);
+
+    SystemRuntimeMacOSX (lldb_private::Process *process);
+
+    virtual
+    ~SystemRuntimeMacOSX ();
+
+    void
+    Clear (bool clear_process);
+
+    void
+    DidAttach ();
+
+    void
+    DidLaunch();
+
+    void
+    ModulesDidLoad (lldb_private::ModuleList &module_list);
+
+    const std::vector<lldb_private::ConstString> &
+    GetExtendedBacktraceTypes ();
+
+    lldb::ThreadSP
+    GetExtendedBacktraceThread (lldb::ThreadSP thread, lldb_private::ConstString type);
+
+    // REMOVE THE FOLLOWING 4
+    bool 
+    SetItemEnqueuedBreakpoint ();
+
+    bool
+    DidSetItemEnqueuedBreakpoint () const;
+
+    static bool
+    ItemEnqueuedCallback (void *baton, lldb_private::StoppointCallbackContext *context, lldb::user_id_t break_id, lldb::user_id_t break_loc_id);
+
+    bool
+    ItemEnqueuedBreakpointHit (lldb_private::StoppointCallbackContext *context, lldb::user_id_t break_id, lldb::user_id_t break_loc_id);
+
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    virtual lldb_private::ConstString
+    GetPluginName();
+
+    virtual uint32_t
+    GetPluginVersion();
+
+private:
+    struct ArchivedBacktrace {
+        uint32_t stop_id;
+        bool stop_id_is_valid;
+        lldb::queue_id_t libdispatch_queue_id;   // LLDB_INVALID_QUEUE_ID if unavailable
+        std::vector<lldb::addr_t> pcs;
+    };
+
+    SystemRuntimeMacOSX::ArchivedBacktrace
+    GetLibdispatchExtendedBacktrace (lldb::ThreadSP thread);
+
+protected:
+    lldb::user_id_t m_break_id;
+    mutable lldb_private::Mutex m_mutex;
+
+private:
+
+    void
+    ParseLdiHeaders ();
+
+    bool
+    LdiHeadersInitialized ();
+
+    lldb::addr_t
+    GetQueuesHead ();
+
+    lldb::addr_t
+    GetItemsHead ();
+
+    lldb::addr_t
+    GetThreadCreatorItem (lldb::ThreadSP thread);
+
+    void
+    SetNewThreadQueueName (lldb::ThreadSP original_thread_sp, lldb::ThreadSP new_extended_thread_sp);
+
+    void
+    SetNewThreadExtendedBacktraceToken (lldb::ThreadSP original_thread_sp, lldb::ThreadSP new_extended_thread_sp);
+
+    struct ldi_queue_offsets {
+        uint16_t next;
+        uint16_t prev;
+        uint16_t queue_id;
+        uint16_t current_item_ptr;
+    };
+
+    struct ldi_item_offsets {
+        uint16_t next;
+        uint16_t prev;
+        uint16_t type;
+        uint16_t identifier;
+        uint16_t stop_id;
+        uint16_t backtrace_length;
+        uint16_t backtrace_ptr;
+        uint16_t thread_name_ptr;
+        uint16_t queue_name_ptr;
+        uint16_t unique_thread_id;
+        uint16_t pthread_id;
+        uint16_t enqueueing_thread_dispatch_queue_t;
+        uint16_t enqueueing_thread_dispatch_block_ptr;
+    };
+
+    struct ldi_header {
+        uint16_t                    version;
+        uint16_t                    ldi_header_size;
+        uint16_t                    initialized;        // 0 means uninitialized
+        uint16_t                    queue_size;
+        uint16_t                    item_size;
+        uint64_t                    queues_head_ptr_address;  // Address of queues head structure
+        uint64_t                    items_head_ptr_address;   // Address of items_head
+        struct ldi_queue_offsets    queue_offsets;
+        struct ldi_item_offsets     item_offsets;
+    };
+
+    struct ldi_header   m_ldi_header;
+
+    DISALLOW_COPY_AND_ASSIGN (SystemRuntimeMacOSX);
+};
+
+#endif  // liblldb_SystemRuntimeMacOSX_h_