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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
// AsmJit - Complete JIT Assembler for C++ Language.
// Copyright (c) 2008-2010, Petr Kobalicek <kobalicek.petr@gmail.com>
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
// [Guard]
#ifndef _ASMJIT_CODEGENERATOR_H
#define _ASMJIT_CODEGENERATOR_H
// [Dependencies]
#include "Build.h"
namespace AsmJit {
// ============================================================================
// [Forward Declarations]
// ============================================================================
struct Assembler;
struct JitCodeGenerator;
struct MemoryManager;
// ============================================================================
// [AsmJit::CodeGenerator]
// ============================================================================
//! @brief Code generator is core class for changing behavior of code generated
//! by @c Assembler or @c Compiler.
struct ASMJIT_API CodeGenerator
{
// --------------------------------------------------------------------------
// [Construction / Destruction]
// --------------------------------------------------------------------------
//! @brief Create a @c CodeGenerator instance.
CodeGenerator();
//! @brief Destroy the @c CodeGenerator instance.
virtual ~CodeGenerator();
// --------------------------------------------------------------------------
// [Interface]
// --------------------------------------------------------------------------
//! @brief Allocate memory for code generated in @a assembler and reloc it
//! to target location.
//!
//! This method is universal allowing any pre-process / post-process work
//! with code generated by @c Assembler or @c Compiler. Because @c Compiler
//! always uses @c Assembler it's allowed to access only the @c Assembler
//! instance.
//!
//! This method is always last step when using code generation. You can use
//! it to allocate memory for JIT code, saving code to remote process or a
//! shared library.
//!
//! @retrurn Error value, see @c ERROR_CODE.
virtual uint32_t generate(void** dest, Assembler* assembler) = 0;
// --------------------------------------------------------------------------
// [Statics]
// --------------------------------------------------------------------------
static CodeGenerator* getGlobal();
private:
ASMJIT_DISABLE_COPY(CodeGenerator)
};
// ============================================================================
// [AsmJit::JitCodeGenerator]
// ============================================================================
struct JitCodeGenerator : public CodeGenerator
{
// --------------------------------------------------------------------------
// [Construction / Destruction]
// --------------------------------------------------------------------------
//! @brief Create a @c JitCodeGenerator instance.
JitCodeGenerator();
//! @brief Destroy the @c JitCodeGenerator instance.
virtual ~JitCodeGenerator();
// --------------------------------------------------------------------------
// [Memory Manager and Alloc Type]
// --------------------------------------------------------------------------
// Note: These members can be ignored by all derived classes. They are here
// only to privide default implementation. All other implementations (remote
// code patching or making dynamic loadable libraries/executables) ignore
// members accessed by these accessors.
//! @brief Get the @c MemoryManager instance.
inline MemoryManager* getMemoryManager() const { return _memoryManager; }
//! @brief Set the @c MemoryManager instance.
inline void setMemoryManager(MemoryManager* memoryManager) { _memoryManager = memoryManager; }
//! @brief Get the type of allocation.
inline uint32_t getAllocType() const { return _allocType; }
//! @brief Set the type of allocation.
inline void setAllocType(uint32_t allocType) { _allocType = allocType; }
// --------------------------------------------------------------------------
// [Interface]
// --------------------------------------------------------------------------
virtual uint32_t generate(void** dest, Assembler* assembler);
// --------------------------------------------------------------------------
// [Members]
// --------------------------------------------------------------------------
protected:
//! @brief Memory manager.
MemoryManager* _memoryManager;
//! @brief Type of allocation.
uint32_t _allocType;
private:
ASMJIT_DISABLE_COPY(JitCodeGenerator)
};
} // AsmJit namespace
// [Guard]
#endif // _ASMJIT_CODEGENERATOR_H
|
