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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/***************************************************Project Mutator****************************************************/
//-*-c++-*-
/*first line intentionally left blank.*/
/*a second way of running the mutants. experimental.*/
/*Copyright (C) 2017 Farzad Sadeghi
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.*/
/*code structure inspired by Eli Bendersky's tutorial on Rewriters.*/
/**********************************************************************************************************************/
/*inclusion guard*/
#ifndef ORC_MUTATION_H
#define ORC_MUTATION_H
//#if __clang_major__ >= 5
#if 0
/**********************************************************************************************************************/
/*included modules*/
/*project headers*/
/*standard library headers*/
#include <vector>
/*clang headers*/
/*llvm headers*/
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/ExecutionEngine/ExecutionEngine.h"
#include "llvm/ExecutionEngine/JITSymbol.h"
#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
#include "llvm/ExecutionEngine/Orc/IRTransformLayer.h"
#include "llvm/ExecutionEngine/Orc/LambdaResolver.h"
#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
#include "llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Scalar/GVN.h"
/**********************************************************************************************************************/
/*using*/
using namespace llvm;
/**********************************************************************************************************************/
/*globals*/
/**********************************************************************************************************************/
namespace mutatorjit{
class MutatorJIT
{
private:
std::unique_ptr<TargetMachine> TM;
const DataLayout DL;
std::unique_ptr<orc::JITCompileCallbackManager> CompileCallbackManager;
orc::RTDyldObjectLinkingLayer ObjectLayer;
orc::IRCompileLayer<decltype(ObjectLayer), orc::SimpleCompiler> CompileLayer;
using OptimizeFunction = std::function<std::shared_ptr<llvm::Module>(std::shared_ptr<llvm::Module>)>;
orc::IRTransformLayer<decltype(CompileLayer), OptimizeFunction> OptimizeLayer;
//orc::CompileOnDemandLayer<decltype(OptimizeLayer)> CODL;
public:
using ModuleHandle = decltype(OptimizeLayer)::ModuleHandleT;
MutatorJIT() : TM(EngineBuilder().selectTarget()), DL(TM->createDataLayout()), \
ObjectLayer([]() {return std::make_shared<SectionMemoryManager>();}),\
CompileLayer(ObjectLayer, orc::SimpleCompiler(*TM)), \
OptimizeLayer(CompileLayer, [this](std::shared_ptr<llvm::Module> M){return optimizeModule(std::move(M));})
{
llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr);
}
TargetMachine &getTargetMachine()
{
return *TM;
}
ModuleHandle addModule(std::unique_ptr<llvm::Module> M)
{
auto Resolver = orc::createLambdaResolver
(
[&](const std::string &Name)
{
if (auto Sym = OptimizeLayer.findSymbol(Name, false))
{
return Sym;
}
else
{
return JITSymbol(nullptr);
}
},
[](const std::string &Name)
{
if (auto SymAddr = RTDyldMemoryManager::getSymbolAddressInProcess(Name))
{
return JITSymbol(SymAddr, JITSymbolFlags::Exported);
}
else
{
return JITSymbol(nullptr);
}
}
);
return cantFail(OptimizeLayer.addModule(std::move(M), std::move(Resolver)));
}
JITSymbol findSymbol(const std::string Name)
{
std::string MangledName;
raw_string_ostream MangledNameStream(MangledName);
Mangler::getNameWithPrefix(MangledNameStream, Name, DL);
return OptimizeLayer.findSymbol(MangledNameStream.str(), true);
}
void removeModule(ModuleHandle H)
{
cantFail(OptimizeLayer.removeModule(H));
}
private:
std::shared_ptr<llvm::Module> optimizeModule(std::shared_ptr<llvm::Module> M)
{
auto FPM = llvm::make_unique<legacy::FunctionPassManager>(M.get());
FPM->add(createInstructionCombiningPass());
FPM->add(createReassociatePass());
FPM->add(createGVNPass());
FPM->add(createCFGSimplificationPass());
FPM->doInitialization();
for (auto &F : *M)
{
FPM->run(F);
}
return M;
}
};
class runMainOnJit
{
#if 1
std::unique_ptr<llvm::Module> M = buildModule();
MutatorJIT jit;
Handle H = jit.addModule(*M);
int (*Main)(int, char*[]) =
(int(*)(int*, char*[]))jit.findSymbol("main").getSymbolAddressInProcess();
int result = Main();
jit.removeModule(H);
#endif
};
} //end of namespace mutatorjit
/**********************************************************************************************************************/
/**********************************************************************************************************************/
/**********************************************************************************************************************/
/**********************************************************************************************************************/
#endif
#endif
/*last line intentionally left blank*/
|
