aboutsummaryrefslogtreecommitdiff
path: root/lib/ExecutionEngine/ExecutionEngineBindings.cpp
blob: f8f1f4a78ee53e8a778aa74e72681f3daff6b8f7 (plain) (blame)
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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
//===-- ExecutionEngineBindings.cpp - C bindings for EEs ------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the C bindings for the ExecutionEngine library.
//
//===----------------------------------------------------------------------===//

#define DEBUG_TYPE "jit"
#include "llvm-c/ExecutionEngine.h"
#include "llvm/ExecutionEngine/GenericValue.h"
#include "llvm/ExecutionEngine/ExecutionEngine.h"
#include "llvm/Support/ErrorHandling.h"
#include <cstring>

using namespace llvm;

/*===-- Operations on generic values --------------------------------------===*/

LLVMGenericValueRef LLVMCreateGenericValueOfInt(LLVMTypeRef Ty,
                                                unsigned long long N,
                                                LLVMBool IsSigned) {
  GenericValue *GenVal = new GenericValue();
  GenVal->IntVal = APInt(unwrap<IntegerType>(Ty)->getBitWidth(), N, IsSigned);
  return wrap(GenVal);
}

LLVMGenericValueRef LLVMCreateGenericValueOfPointer(void *P) {
  GenericValue *GenVal = new GenericValue();
  GenVal->PointerVal = P;
  return wrap(GenVal);
}

LLVMGenericValueRef LLVMCreateGenericValueOfFloat(LLVMTypeRef TyRef, double N) {
  GenericValue *GenVal = new GenericValue();
  switch (unwrap(TyRef)->getTypeID()) {
  case Type::FloatTyID:
    GenVal->FloatVal = N;
    break;
  case Type::DoubleTyID:
    GenVal->DoubleVal = N;
    break;
  default:
    llvm_unreachable("LLVMGenericValueToFloat supports only float and double.");
  }
  return wrap(GenVal);
}

unsigned LLVMGenericValueIntWidth(LLVMGenericValueRef GenValRef) {
  return unwrap(GenValRef)->IntVal.getBitWidth();
}

unsigned long long LLVMGenericValueToInt(LLVMGenericValueRef GenValRef,
                                         LLVMBool IsSigned) {
  GenericValue *GenVal = unwrap(GenValRef);
  if (IsSigned)
    return GenVal->IntVal.getSExtValue();
  else
    return GenVal->IntVal.getZExtValue();
}

void *LLVMGenericValueToPointer(LLVMGenericValueRef GenVal) {
  return unwrap(GenVal)->PointerVal;
}

double LLVMGenericValueToFloat(LLVMTypeRef TyRef, LLVMGenericValueRef GenVal) {
  switch (unwrap(TyRef)->getTypeID()) {
  case Type::FloatTyID:
    return unwrap(GenVal)->FloatVal;
  case Type::DoubleTyID:
    return unwrap(GenVal)->DoubleVal;
  default:
    llvm_unreachable("LLVMGenericValueToFloat supports only float and double.");
    break;
  }
  return 0; // Not reached
}

void LLVMDisposeGenericValue(LLVMGenericValueRef GenVal) {
  delete unwrap(GenVal);
}

/*===-- Operations on execution engines -----------------------------------===*/

LLVMBool LLVMCreateExecutionEngineForModule(LLVMExecutionEngineRef *OutEE,
                                            LLVMModuleRef M,
                                            char **OutError) {
  std::string Error;
  EngineBuilder builder(unwrap(M));
  builder.setEngineKind(EngineKind::Either)
         .setErrorStr(&Error);
  if (ExecutionEngine *EE = builder.create()){
    *OutEE = wrap(EE);
    return 0;
  }
  *OutError = strdup(Error.c_str());
  return 1;
}

LLVMBool LLVMCreateInterpreterForModule(LLVMExecutionEngineRef *OutInterp,
                                        LLVMModuleRef M,
                                        char **OutError) {
  std::string Error;
  EngineBuilder builder(unwrap(M));
  builder.setEngineKind(EngineKind::Interpreter)
         .setErrorStr(&Error);
  if (ExecutionEngine *Interp = builder.create()) {
    *OutInterp = wrap(Interp);
    return 0;
  }
  *OutError = strdup(Error.c_str());
  return 1;
}

LLVMBool LLVMCreateJITCompilerForModule(LLVMExecutionEngineRef *OutJIT,
                                        LLVMModuleRef M,
                                        unsigned OptLevel,
                                        char **OutError) {
  std::string Error;
  EngineBuilder builder(unwrap(M));
  builder.setEngineKind(EngineKind::JIT)
         .setErrorStr(&Error)
         .setOptLevel((CodeGenOpt::Level)OptLevel);
  if (ExecutionEngine *JIT = builder.create()) {
    *OutJIT = wrap(JIT);
    return 0;
  }
  *OutError = strdup(Error.c_str());
  return 1;
}

LLVMBool LLVMCreateExecutionEngine(LLVMExecutionEngineRef *OutEE,
                                   LLVMModuleProviderRef MP,
                                   char **OutError) {
  /* The module provider is now actually a module. */
  return LLVMCreateExecutionEngineForModule(OutEE,
                                            reinterpret_cast<LLVMModuleRef>(MP),
                                            OutError);
}

LLVMBool LLVMCreateInterpreter(LLVMExecutionEngineRef *OutInterp,
                               LLVMModuleProviderRef MP,
                               char **OutError) {
  /* The module provider is now actually a module. */
  return LLVMCreateInterpreterForModule(OutInterp,
                                        reinterpret_cast<LLVMModuleRef>(MP),
                                        OutError);
}

LLVMBool LLVMCreateJITCompiler(LLVMExecutionEngineRef *OutJIT,
                               LLVMModuleProviderRef MP,
                               unsigned OptLevel,
                               char **OutError) {
  /* The module provider is now actually a module. */
  return LLVMCreateJITCompilerForModule(OutJIT,
                                        reinterpret_cast<LLVMModuleRef>(MP),
                                        OptLevel, OutError);
}


void LLVMDisposeExecutionEngine(LLVMExecutionEngineRef EE) {
  delete unwrap(EE);
}

void LLVMRunStaticConstructors(LLVMExecutionEngineRef EE) {
  unwrap(EE)->runStaticConstructorsDestructors(false);
}

void LLVMRunStaticDestructors(LLVMExecutionEngineRef EE) {
  unwrap(EE)->runStaticConstructorsDestructors(true);
}

int LLVMRunFunctionAsMain(LLVMExecutionEngineRef EE, LLVMValueRef F,
                          unsigned ArgC, const char * const *ArgV,
                          const char * const *EnvP) {
  std::vector<std::string> ArgVec;
  for (unsigned I = 0; I != ArgC; ++I)
    ArgVec.push_back(ArgV[I]);
  
  return unwrap(EE)->runFunctionAsMain(unwrap<Function>(F), ArgVec, EnvP);
}

LLVMGenericValueRef LLVMRunFunction(LLVMExecutionEngineRef EE, LLVMValueRef F,
                                    unsigned NumArgs,
                                    LLVMGenericValueRef *Args) {
  std::vector<GenericValue> ArgVec;
  ArgVec.reserve(NumArgs);
  for (unsigned I = 0; I != NumArgs; ++I)
    ArgVec.push_back(*unwrap(Args[I]));
  
  GenericValue *Result = new GenericValue();
  *Result = unwrap(EE)->runFunction(unwrap<Function>(F), ArgVec);
  return wrap(Result);
}

void LLVMFreeMachineCodeForFunction(LLVMExecutionEngineRef EE, LLVMValueRef F) {
  unwrap(EE)->freeMachineCodeForFunction(unwrap<Function>(F));
}

void LLVMAddModule(LLVMExecutionEngineRef EE, LLVMModuleRef M){
  unwrap(EE)->addModule(unwrap(M));
}

void LLVMAddModuleProvider(LLVMExecutionEngineRef EE, LLVMModuleProviderRef MP){
  /* The module provider is now actually a module. */
  LLVMAddModule(EE, reinterpret_cast<LLVMModuleRef>(MP));
}

LLVMBool LLVMRemoveModule(LLVMExecutionEngineRef EE, LLVMModuleRef M,
                          LLVMModuleRef *OutMod, char **OutError) {
  Module *Mod = unwrap(M);
  unwrap(EE)->removeModule(Mod);
  *OutMod = wrap(Mod);
  return 0;
}

LLVMBool LLVMRemoveModuleProvider(LLVMExecutionEngineRef EE,
                                  LLVMModuleProviderRef MP,
                                  LLVMModuleRef *OutMod, char **OutError) {
  /* The module provider is now actually a module. */
  return LLVMRemoveModule(EE, reinterpret_cast<LLVMModuleRef>(MP), OutMod,
                          OutError);
}

LLVMBool LLVMFindFunction(LLVMExecutionEngineRef EE, const char *Name,
                          LLVMValueRef *OutFn) {
  if (Function *F = unwrap(EE)->FindFunctionNamed(Name)) {
    *OutFn = wrap(F);
    return 0;
  }
  return 1;
}

void *LLVMRecompileAndRelinkFunction(LLVMExecutionEngineRef EE, LLVMValueRef Fn) {
  return unwrap(EE)->recompileAndRelinkFunction(unwrap<Function>(Fn));
}

LLVMTargetDataRef LLVMGetExecutionEngineTargetData(LLVMExecutionEngineRef EE) {
  return wrap(unwrap(EE)->getTargetData());
}

void LLVMAddGlobalMapping(LLVMExecutionEngineRef EE, LLVMValueRef Global,
                          void* Addr) {
  unwrap(EE)->addGlobalMapping(unwrap<GlobalValue>(Global), Addr);
}

void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global) {
  return unwrap(EE)->getPointerToGlobal(unwrap<GlobalValue>(Global));
}