1/*
2 * Copyright (C) 2012 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef CodeProfile_h
27#define CodeProfile_h
28
29#include "SourceCode.h"
30#include "TieredMMapArray.h"
31#include <wtf/text/CString.h>
32
33namespace JSC {
34
35class CodeProfile {
36    WTF_MAKE_FAST_ALLOCATED;
37public:
38    CodeProfile(const SourceCode& source, CodeProfile* parent)
39        : m_file(source.provider()->url().utf8())
40        , m_lineNo(source.firstLine())
41        , m_parent(parent)
42    {
43        if (parent)
44            parent->addChild(this);
45    }
46
47    void sample(void* pc, void** framePointer);
48    void report();
49
50    CodeProfile* parent()
51    {
52        return m_parent;
53    }
54
55    void addChild(CodeProfile* child)
56    {
57        m_children.append(adoptPtr(child));
58    }
59
60private:
61    enum CodeType {
62        EngineCode,
63        GlobalThunk,
64        RegExpCode,
65        DFGJIT,
66        BaselineOnly,
67        BaselineProfile,
68        BaselineOSR,
69        EngineFrame,
70        NumberOfCodeTypes
71    };
72    struct CodeRecord {
73        CodeRecord(void* pc, CodeType type)
74            : pc(pc)
75            , type(type)
76        {
77        }
78        void* pc;
79        CodeType type;
80    };
81
82    CString m_file;
83    unsigned m_lineNo;
84    CodeProfile* m_parent;
85    Vector< OwnPtr<CodeProfile> > m_children;
86    TieredMMapArray<CodeRecord> m_samples;
87
88    static const char* s_codeTypeNames[NumberOfCodeTypes];
89};
90
91}
92
93#endif // CodeProfile_h
94
95