1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef JITStubRoutineSet_h
#define JITStubRoutineSet_h
#include "JITStubRoutine.h"
#include <wtf/FastMalloc.h>
#include <wtf/HashMap.h>
#include <wtf/Vector.h>
namespace JSC {
class GCAwareJITStubRoutine;
class SlotVisitor;
#if ENABLE(JIT)
class JITStubRoutineSet {
WTF_MAKE_NONCOPYABLE(JITStubRoutineSet);
WTF_MAKE_FAST_ALLOCATED;
public:
JITStubRoutineSet();
~JITStubRoutineSet();
void add(GCAwareJITStubRoutine*);
void clearMarks();
void mark(void* candidateAddress)
{
uintptr_t address = reinterpret_cast<uintptr_t>(candidateAddress);
if (!JITStubRoutine::passesFilter(address))
return;
markSlow(address);
}
void deleteUnmarkedJettisonedStubRoutines();
void traceMarkedStubRoutines(SlotVisitor&);
unsigned size() const { return m_listOfRoutines.size(); }
GCAwareJITStubRoutine* at(unsigned i) const { return m_listOfRoutines[i]; }
private:
void markSlow(uintptr_t address);
HashMap<uintptr_t, GCAwareJITStubRoutine*> m_addressToRoutineMap;
Vector<GCAwareJITStubRoutine*> m_listOfRoutines;
};
#else // !ENABLE(JIT)
class JITStubRoutineSet {
WTF_MAKE_NONCOPYABLE(JITStubRoutineSet);
WTF_MAKE_FAST_ALLOCATED;
public:
JITStubRoutineSet() { }
~JITStubRoutineSet() { }
void add(GCAwareJITStubRoutine*) { }
void clearMarks() { }
void mark(void*) { }
void deleteUnmarkedJettisonedStubRoutines() { }
void traceMarkedStubRoutines(SlotVisitor&) { }
};
#endif // !ENABLE(JIT)
} // namespace JSC
#endif // JITStubRoutineSet_h
|
