1 /*===-- executionengine_ocaml.c - LLVM OCaml Glue ---------------*- C++ -*-===*\
3 |* The LLVM Compiler Infrastructure *|
5 |* This file is distributed under the University of Illinois Open Source *|
6 |* License. See LICENSE.TXT for details. *|
8 |*===----------------------------------------------------------------------===*|
10 |* This file glues LLVM's OCaml interface to its C interface. These functions *|
11 |* are by and large transparent wrappers to the corresponding C functions. *|
13 |* Note that these functions intentionally take liberties with the CAMLparamX *|
14 |* macros, since most of the parameters are not GC heap objects. *|
16 \*===----------------------------------------------------------------------===*/
18 #include "llvm-c/ExecutionEngine.h"
19 #include "llvm-c/Target.h"
20 #include "caml/alloc.h"
21 #include "caml/custom.h"
22 #include "caml/fail.h"
23 #include "caml/memory.h"
27 /* Force the LLVM interpreter and JIT to be linked in. */
28 void llvm_initialize(void) {
29 LLVMLinkInInterpreter();
34 CAMLprim value llvm_initialize_native_target(value Unit) {
35 return Val_bool(!LLVMInitializeNativeTarget() &&
36 !LLVMInitializeNativeAsmParser() &&
37 !LLVMInitializeNativeAsmPrinter());
40 /* Can't use the recommended caml_named_value mechanism for backwards
41 compatibility reasons. This is largely equivalent. */
42 static value llvm_ee_error_exn;
44 CAMLprim value llvm_register_ee_exns(value Error) {
45 llvm_ee_error_exn = Field(Error, 0);
46 register_global_root(&llvm_ee_error_exn);
50 static void llvm_raise(value Prototype, char *Message) {
51 CAMLparam1(Prototype);
52 CAMLlocal1(CamlMessage);
54 CamlMessage = copy_string(Message);
55 LLVMDisposeMessage(Message);
57 raise_with_arg(Prototype, CamlMessage);
58 abort(); /* NOTREACHED */
60 CAMLnoreturn; /* Silences warnings, but is missing in some versions. */
65 /*--... Operations on generic values .......................................--*/
67 #define Genericvalue_val(v) (*(LLVMGenericValueRef *)(Data_custom_val(v)))
69 static void llvm_finalize_generic_value(value GenVal) {
70 LLVMDisposeGenericValue(Genericvalue_val(GenVal));
73 static struct custom_operations generic_value_ops = {
74 (char *) "LLVMGenericValue",
75 llvm_finalize_generic_value,
76 custom_compare_default,
78 custom_serialize_default,
79 custom_deserialize_default
80 #ifdef custom_compare_ext_default
81 , custom_compare_ext_default
85 static value alloc_generic_value(LLVMGenericValueRef Ref) {
86 value Val = alloc_custom(&generic_value_ops, sizeof(LLVMGenericValueRef), 0, 1);
87 Genericvalue_val(Val) = Ref;
91 /* Llvm.lltype -> float -> t */
92 CAMLprim value llvm_genericvalue_of_float(LLVMTypeRef Ty, value N) {
94 CAMLreturn(alloc_generic_value(
95 LLVMCreateGenericValueOfFloat(Ty, Double_val(N))));
99 CAMLprim value llvm_genericvalue_of_pointer(value V) {
101 CAMLreturn(alloc_generic_value(LLVMCreateGenericValueOfPointer(Op_val(V))));
104 /* Llvm.lltype -> int -> t */
105 CAMLprim value llvm_genericvalue_of_int(LLVMTypeRef Ty, value Int) {
106 return alloc_generic_value(LLVMCreateGenericValueOfInt(Ty, Int_val(Int), 1));
109 /* Llvm.lltype -> int32 -> t */
110 CAMLprim value llvm_genericvalue_of_int32(LLVMTypeRef Ty, value Int32) {
112 CAMLreturn(alloc_generic_value(
113 LLVMCreateGenericValueOfInt(Ty, Int32_val(Int32), 1)));
116 /* Llvm.lltype -> nativeint -> t */
117 CAMLprim value llvm_genericvalue_of_nativeint(LLVMTypeRef Ty, value NatInt) {
119 CAMLreturn(alloc_generic_value(
120 LLVMCreateGenericValueOfInt(Ty, Nativeint_val(NatInt), 1)));
123 /* Llvm.lltype -> int64 -> t */
124 CAMLprim value llvm_genericvalue_of_int64(LLVMTypeRef Ty, value Int64) {
126 CAMLreturn(alloc_generic_value(
127 LLVMCreateGenericValueOfInt(Ty, Int64_val(Int64), 1)));
130 /* Llvm.lltype -> t -> float */
131 CAMLprim value llvm_genericvalue_as_float(LLVMTypeRef Ty, value GenVal) {
133 CAMLreturn(copy_double(
134 LLVMGenericValueToFloat(Ty, Genericvalue_val(GenVal))));
138 CAMLprim value llvm_genericvalue_as_pointer(value GenVal) {
139 return Val_op(LLVMGenericValueToPointer(Genericvalue_val(GenVal)));
143 CAMLprim value llvm_genericvalue_as_int(value GenVal) {
144 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 8 * sizeof(value)
145 && "Generic value too wide to treat as an int!");
146 return Val_int(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1));
150 CAMLprim value llvm_genericvalue_as_int32(value GenVal) {
152 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 32
153 && "Generic value too wide to treat as an int32!");
154 CAMLreturn(copy_int32(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1)));
158 CAMLprim value llvm_genericvalue_as_int64(value GenVal) {
160 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 64
161 && "Generic value too wide to treat as an int64!");
162 CAMLreturn(copy_int64(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1)));
166 CAMLprim value llvm_genericvalue_as_nativeint(value GenVal) {
168 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 8 * sizeof(value)
169 && "Generic value too wide to treat as a nativeint!");
170 CAMLreturn(copy_nativeint(LLVMGenericValueToInt(Genericvalue_val(GenVal),1)));
174 /*--... Operations on execution engines ....................................--*/
176 /* llmodule -> ExecutionEngine.t */
177 CAMLprim LLVMExecutionEngineRef llvm_ee_create(LLVMModuleRef M) {
178 LLVMExecutionEngineRef Interp;
180 if (LLVMCreateExecutionEngineForModule(&Interp, M, &Error))
181 llvm_raise(llvm_ee_error_exn, Error);
185 /* llmodule -> ExecutionEngine.t */
186 CAMLprim LLVMExecutionEngineRef
187 llvm_ee_create_interpreter(LLVMModuleRef M) {
188 LLVMExecutionEngineRef Interp;
190 if (LLVMCreateInterpreterForModule(&Interp, M, &Error))
191 llvm_raise(llvm_ee_error_exn, Error);
195 /* llmodule -> int -> ExecutionEngine.t */
196 CAMLprim LLVMExecutionEngineRef
197 llvm_ee_create_jit(LLVMModuleRef M, value OptLevel) {
198 LLVMExecutionEngineRef JIT;
200 if (LLVMCreateJITCompilerForModule(&JIT, M, Int_val(OptLevel), &Error))
201 llvm_raise(llvm_ee_error_exn, Error);
205 /* llmodule -> llcompileroption -> ExecutionEngine.t */
206 CAMLprim LLVMExecutionEngineRef
207 llvm_ee_create_mcjit(LLVMModuleRef M, value OptRecord) {
208 LLVMExecutionEngineRef MCJIT;
210 struct LLVMMCJITCompilerOptions Options = {
211 .OptLevel = Int_val(Field(OptRecord, 0)),
212 .CodeModel = Int_val(Field(OptRecord, 1)),
213 .NoFramePointerElim = Int_val(Field(OptRecord, 2)),
214 .EnableFastISel = Int_val(Field(OptRecord, 3)),
217 if (LLVMCreateMCJITCompilerForModule(&MCJIT, M, &Options,
218 sizeof(Options), &Error))
219 llvm_raise(llvm_ee_error_exn, Error);
223 /* ExecutionEngine.t -> unit */
224 CAMLprim value llvm_ee_dispose(LLVMExecutionEngineRef EE) {
225 LLVMDisposeExecutionEngine(EE);
229 /* llmodule -> ExecutionEngine.t -> unit */
230 CAMLprim value llvm_ee_add_module(LLVMModuleRef M, LLVMExecutionEngineRef EE) {
231 LLVMAddModule(EE, M);
235 /* llmodule -> ExecutionEngine.t -> llmodule */
236 CAMLprim LLVMModuleRef llvm_ee_remove_module(LLVMModuleRef M,
237 LLVMExecutionEngineRef EE) {
238 LLVMModuleRef RemovedModule;
240 if (LLVMRemoveModule(EE, M, &RemovedModule, &Error))
241 llvm_raise(llvm_ee_error_exn, Error);
242 return RemovedModule;
245 /* string -> ExecutionEngine.t -> llvalue option */
246 CAMLprim value llvm_ee_find_function(value Name, LLVMExecutionEngineRef EE) {
250 if (LLVMFindFunction(EE, String_val(Name), &Found))
251 CAMLreturn(Val_unit);
252 Option = alloc(1, 0);
253 Field(Option, 0) = Val_op(Found);
257 /* llvalue -> GenericValue.t array -> ExecutionEngine.t -> GenericValue.t */
258 CAMLprim value llvm_ee_run_function(LLVMValueRef F, value Args,
259 LLVMExecutionEngineRef EE) {
261 LLVMGenericValueRef Result, *GVArgs;
264 NumArgs = Wosize_val(Args);
265 GVArgs = (LLVMGenericValueRef*) malloc(NumArgs * sizeof(LLVMGenericValueRef));
266 for (I = 0; I != NumArgs; ++I)
267 GVArgs[I] = Genericvalue_val(Field(Args, I));
269 Result = LLVMRunFunction(EE, F, NumArgs, GVArgs);
272 return alloc_generic_value(Result);
275 /* ExecutionEngine.t -> unit */
276 CAMLprim value llvm_ee_run_static_ctors(LLVMExecutionEngineRef EE) {
277 LLVMRunStaticConstructors(EE);
281 /* ExecutionEngine.t -> unit */
282 CAMLprim value llvm_ee_run_static_dtors(LLVMExecutionEngineRef EE) {
283 LLVMRunStaticDestructors(EE);
287 /* llvalue -> string array -> (string * string) array -> ExecutionEngine.t ->
289 CAMLprim value llvm_ee_run_function_as_main(LLVMValueRef F,
290 value Args, value Env,
291 LLVMExecutionEngineRef EE) {
292 CAMLparam2(Args, Env);
293 int I, NumArgs, NumEnv, EnvSize, Result;
294 const char **CArgs, **CEnv;
297 NumArgs = Wosize_val(Args);
298 NumEnv = Wosize_val(Env);
300 /* Build the environment. */
301 CArgs = (const char **) malloc(NumArgs * sizeof(char*));
302 for (I = 0; I != NumArgs; ++I)
303 CArgs[I] = String_val(Field(Args, I));
305 /* Compute the size of the environment string buffer. */
306 for (I = 0, EnvSize = 0; I != NumEnv; ++I) {
307 EnvSize += strlen(String_val(Field(Field(Env, I), 0))) + 1;
308 EnvSize += strlen(String_val(Field(Field(Env, I), 1))) + 1;
311 /* Build the environment. */
312 CEnv = (const char **) malloc((NumEnv + 1) * sizeof(char*));
313 CEnvBuf = (char*) malloc(EnvSize);
315 for (I = 0; I != NumEnv; ++I) {
316 char *Name = String_val(Field(Field(Env, I), 0)),
317 *Value = String_val(Field(Field(Env, I), 1));
318 int NameLen = strlen(Name),
319 ValueLen = strlen(Value);
322 memcpy(Pos, Name, NameLen);
325 memcpy(Pos, Value, ValueLen);
331 Result = LLVMRunFunctionAsMain(EE, F, NumArgs, CArgs, CEnv);
337 CAMLreturn(Val_int(Result));
340 /* llvalue -> ExecutionEngine.t -> unit */
341 CAMLprim value llvm_ee_free_machine_code(LLVMValueRef F,
342 LLVMExecutionEngineRef EE) {
343 LLVMFreeMachineCodeForFunction(EE, F);
347 extern value llvm_alloc_data_layout(LLVMTargetDataRef TargetData);
349 /* ExecutionEngine.t -> Llvm_target.DataLayout.t */
350 CAMLprim value llvm_ee_get_data_layout(LLVMExecutionEngineRef EE) {
352 LLVMTargetDataRef OrigDataLayout;
353 OrigDataLayout = LLVMGetExecutionEngineTargetData(EE);
355 char* TargetDataCStr;
356 TargetDataCStr = LLVMCopyStringRepOfTargetData(OrigDataLayout);
357 DataLayout = llvm_alloc_data_layout(LLVMCreateTargetData(TargetDataCStr));
358 LLVMDisposeMessage(TargetDataCStr);