1 files changed, 82 insertions, 0 deletions
diff --git a/lldb/tools/debugserver/source/ProfileObjectiveC.h b/lldb/tools/debugserver/source/ProfileObjectiveC.h
new file mode 100644
index 00000000000..8a5c13db32a
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+++ b/lldb/tools/debugserver/source/ProfileObjectiveC.h
@@ -0,0 +1,82 @@
+//===-- ProfileObjectiveC.h -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  Created by Greg Clayton on 10/4/07.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __ProfileObjectiveC_h__
+#define __ProfileObjectiveC_h__
+
+#include "DNB.h"
+#include "DNBRuntimeAction.h"
+#include <map>
+#include <sys/time.h>
+
+class ProfileObjectiveC : public DNBRuntimeAction
+{
+public:
+    ProfileObjectiveC();
+    virtual ~ProfileObjectiveC();
+    //------------------------------------------------------------------
+    // DNBRuntimeAction required functions
+    //------------------------------------------------------------------
+    virtual void Initialize(nub_process_t pid);
+    virtual void ProcessStateChanged(nub_state_t state);
+    virtual void SharedLibraryStateChanged(DNBExecutableImageInfo *image_infos, nub_size_t num_image_infos);
+
+protected:
+    typedef uint32_t objc_selector_t;
+    typedef uint32_t objc_class_ptr_t;
+    void Clear();
+    static nub_bool_t MessageSendBreakpointCallback(nub_process_t pid, nub_thread_t tid, nub_break_t breakID, void *userData);
+    static nub_bool_t MessageSendSuperBreakpointCallback(nub_process_t pid, nub_thread_t tid, nub_break_t breakID, void *userData);
+    void DumpStats(nub_process_t pid, FILE *f);
+    void SetStartTime();
+    void SelectorHit(objc_class_ptr_t isa, objc_selector_t sel);
+    typedef std::map<objc_selector_t, uint32_t> SelectorHitCount;
+    typedef std::map<objc_class_ptr_t, SelectorHitCount> ClassStatsMap;
+    typedef struct Probe
+    {
+        nub_addr_t        addr;
+        nub_break_t        breakID;
+        Probe() : addr(INVALID_NUB_ADDRESS), breakID(INVALID_NUB_BREAK_ID) {}
+        void Clear()
+        {
+            addr = INVALID_NUB_ADDRESS;
+            breakID = INVALID_NUB_BREAK_ID;
+        }
+        bool IsValid() const
+        {
+            return (addr != INVALID_NUB_ADDRESS) && (NUB_BREAK_ID_IS_VALID(breakID));
+        }
+    };
+
+    uint32_t IncrementHitCount() { return ++m_hit_count; }
+    bool ShouldDumpStats() const {     return m_dump_count && (m_hit_count % m_dump_count) == 0; }
+
+    nub_process_t m_pid;
+    Probe m_objc_msgSend;
+    Probe m_objc_msgSendSuper;
+    uint32_t m_hit_count;    // Number of times we have gotten one of our breakpoints hit
+    uint32_t m_dump_count;    // Dump stats every time the hit count reaches a multiple of this value
+#if defined (__powerpc__) || defined (__ppc__)
+    enum
+    {
+        k_opcode_size = 4
+    };
+    uint8_t            m_objc_msgSend_opcode[k_opcode_size];        // Saved copy of first opcode in objc_msgSend
+    Probe            m_objc_msgSend_rtp;                            // COMM page probe info for objc_msgSend
+#endif
+    struct timeval    m_begin_time;
+    ClassStatsMap    m_objcStats;
+};
+
+
+#endif    // #ifndef __ProfileObjectiveC_h__