1 /*===-- analysis_ocaml.c - LLVM Ocaml Glue ----------------------*- C++ -*-===*\
3 |* The LLVM Compiler Infrastructure *|
5 |* This file was developed by Gordon Henriksen and is distributed under the *|
6 |* University of Illinois Open Source 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 "caml/alloc.h"
20 #include "caml/custom.h"
21 #include "caml/fail.h"
22 #include "caml/memory.h"
27 /* Can't use the recommended caml_named_value mechanism for backwards
28 compatibility reasons. This is largely equivalent. */
29 static value llvm_ee_error_exn;
31 CAMLprim value llvm_register_ee_exns(value Error) {
32 llvm_ee_error_exn = Field(Error, 0);
33 register_global_root(&llvm_ee_error_exn);
37 static void llvm_raise(value Prototype, char *Message) {
38 CAMLparam1(Prototype);
39 CAMLlocal1(CamlMessage);
41 CamlMessage = copy_string(Message);
42 LLVMDisposeMessage(Message);
44 raise_with_arg(Prototype, CamlMessage);
45 abort(); /* NOTREACHED */
50 /*--... Operations on generic values .......................................--*/
52 #define Genericvalue_val(v) (*(LLVMGenericValueRef *)(Data_custom_val(v)))
54 static void llvm_finalize_generic_value(value GenVal) {
55 LLVMDisposeGenericValue(Genericvalue_val(GenVal));
58 static struct custom_operations generic_value_ops = {
59 (char *) "LLVMGenericValue",
60 llvm_finalize_generic_value,
61 custom_compare_default,
63 custom_serialize_default,
64 custom_deserialize_default
67 static value alloc_generic_value(LLVMGenericValueRef Ref) {
68 value Val = alloc_custom(&generic_value_ops, sizeof(LLVMGenericValueRef), 0, 1);
69 Genericvalue_val(Val) = Ref;
73 /* Llvm.lltype -> float -> t */
74 CAMLprim value llvm_genericvalue_of_float(LLVMTypeRef Ty, value N) {
75 return alloc_generic_value(LLVMCreateGenericValueOfFloat(Ty, Double_val(N)));
79 CAMLprim value llvm_genericvalue_of_value(value V) {
80 return alloc_generic_value(LLVMCreateGenericValueOfPointer(Op_val(V)));
83 /* Llvm.lltype -> int -> t */
84 CAMLprim value llvm_genericvalue_of_int(LLVMTypeRef Ty, value Int) {
85 return alloc_generic_value(LLVMCreateGenericValueOfInt(Ty, Int_val(Int), 1));
88 /* Llvm.lltype -> int32 -> t */
89 CAMLprim value llvm_genericvalue_of_int32(LLVMTypeRef Ty, value Int32) {
90 return alloc_generic_value(LLVMCreateGenericValueOfInt(Ty, Int32_val(Int32),
94 /* Llvm.lltype -> nativeint -> t */
95 CAMLprim value llvm_genericvalue_of_nativeint(LLVMTypeRef Ty, value NatInt) {
96 return alloc_generic_value(LLVMCreateGenericValueOfInt(Ty,
97 Nativeint_val(NatInt),
101 /* Llvm.lltype -> int64 -> t */
102 CAMLprim value llvm_genericvalue_of_int64(LLVMTypeRef Ty, value Int64) {
103 return alloc_generic_value(LLVMCreateGenericValueOfInt(Ty, Int64_val(Int64),
107 /* Llvm.lltype -> t -> float */
108 CAMLprim value llvm_genericvalue_as_float(LLVMTypeRef Ty, value GenVal) {
109 return copy_double(LLVMGenericValueToFloat(Ty, Genericvalue_val(GenVal)));
113 CAMLprim value llvm_genericvalue_as_value(value GenVal) {
114 return Val_op(LLVMGenericValueToPointer(Genericvalue_val(GenVal)));
118 CAMLprim value llvm_genericvalue_as_int(value GenVal) {
119 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 8 * sizeof(value)
120 && "Generic value too wide to treat as an int!");
121 return Val_int(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1));
125 CAMLprim value llvm_genericvalue_as_int32(value GenVal) {
126 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 32
127 && "Generic value too wide to treat as an int32!");
128 return copy_int32(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1));
132 CAMLprim value llvm_genericvalue_as_int64(value GenVal) {
133 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 64
134 && "Generic value too wide to treat as an int64!");
135 return copy_int64(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1));
139 CAMLprim value llvm_genericvalue_as_nativeint(value GenVal) {
140 assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 8 * sizeof(value)
141 && "Generic value too wide to treat as a nativeint!");
142 return copy_nativeint(LLVMGenericValueToInt(Genericvalue_val(GenVal),1));
146 /*--... Operations on execution engines ....................................--*/
148 /* llmoduleprovider -> ExecutionEngine.t */
149 CAMLprim LLVMExecutionEngineRef llvm_ee_create(LLVMModuleProviderRef MP) {
150 LLVMExecutionEngineRef Interp;
152 if (LLVMCreateExecutionEngine(&Interp, MP, &Error))
153 llvm_raise(llvm_ee_error_exn, Error);
157 /* llmoduleprovider -> ExecutionEngine.t */
158 CAMLprim LLVMExecutionEngineRef
159 llvm_ee_create_interpreter(LLVMModuleProviderRef MP) {
160 LLVMExecutionEngineRef Interp;
162 if (LLVMCreateInterpreter(&Interp, MP, &Error))
163 llvm_raise(llvm_ee_error_exn, Error);
167 /* llmoduleprovider -> ExecutionEngine.t */
168 CAMLprim LLVMExecutionEngineRef
169 llvm_ee_create_jit(LLVMModuleProviderRef MP) {
170 LLVMExecutionEngineRef JIT;
172 if (LLVMCreateJITCompiler(&JIT, MP, &Error))
173 llvm_raise(llvm_ee_error_exn, Error);
177 /* ExecutionEngine.t -> unit */
178 CAMLprim value llvm_ee_dispose(LLVMExecutionEngineRef EE) {
179 LLVMDisposeExecutionEngine(EE);
183 /* llmoduleprovider -> ExecutionEngine.t -> unit */
184 CAMLprim value llvm_ee_add_mp(LLVMModuleProviderRef MP,
185 LLVMExecutionEngineRef EE) {
186 LLVMAddModuleProvider(EE, MP);
190 /* llmoduleprovider -> ExecutionEngine.t -> llmodule */
191 CAMLprim LLVMModuleRef llvm_ee_remove_mp(LLVMModuleProviderRef MP,
192 LLVMExecutionEngineRef EE) {
193 LLVMModuleRef RemovedModule;
195 if (LLVMRemoveModuleProvider(EE, MP, &RemovedModule, &Error))
196 llvm_raise(llvm_ee_error_exn, Error);
197 return RemovedModule;
200 /* string -> ExecutionEngine.t -> llvalue option */
201 CAMLprim value llvm_ee_find_function(value Name, LLVMExecutionEngineRef EE) {
205 if (LLVMFindFunction(EE, String_val(Name), &Found))
206 CAMLreturn(Val_unit);
207 Option = alloc(1, 1);
208 Field(Option, 0) = Val_op(Found);
212 /* llvalue -> GenericValue.t array -> ExecutionEngine.t -> GenericValue.t */
213 CAMLprim value llvm_ee_run_function(LLVMValueRef F, value Args,
214 LLVMExecutionEngineRef EE) {
216 LLVMGenericValueRef Result, *GVArgs;
219 NumArgs = Wosize_val(Args);
220 GVArgs = (LLVMGenericValueRef*) malloc(NumArgs * sizeof(LLVMGenericValueRef));
221 for (I = 0; I != NumArgs; ++I)
222 GVArgs[I] = Genericvalue_val(Field(Args, I));
224 Result = LLVMRunFunction(EE, F, NumArgs, GVArgs);
227 return alloc_generic_value(Result);
230 /* ExecutionEngine.t -> unit */
231 CAMLprim value llvm_ee_run_static_ctors(LLVMExecutionEngineRef EE) {
232 LLVMRunStaticConstructors(EE);
236 /* ExecutionEngine.t -> unit */
237 CAMLprim value llvm_ee_run_static_dtors(LLVMExecutionEngineRef EE) {
238 LLVMRunStaticDestructors(EE);
242 /* llvalue -> string array -> (string * string) array -> ExecutionEngine.t ->
244 CAMLprim value llvm_ee_run_function_as_main(LLVMValueRef F,
245 value Args, value Env,
246 LLVMExecutionEngineRef EE) {
247 CAMLparam2(Args, Env);
248 int I, NumArgs, NumEnv, EnvSize, Result;
249 const char **CArgs, **CEnv;
252 NumArgs = Wosize_val(Args);
253 NumEnv = Wosize_val(Env);
255 /* Build the environment. */
256 CArgs = (const char **) malloc(NumArgs * sizeof(char*));
257 for (I = 0; I != NumArgs; ++I)
258 CArgs[I] = String_val(Field(Args, I));
260 /* Compute the size of the environment string buffer. */
261 for (I = 0, EnvSize = 0; I != NumEnv; ++I) {
262 EnvSize += strlen(String_val(Field(Field(Env, I), 0))) + 1;
263 EnvSize += strlen(String_val(Field(Field(Env, I), 1))) + 1;
266 /* Build the environment. */
267 CEnv = (const char **) malloc((NumEnv + 1) * sizeof(char*));
268 CEnvBuf = (char*) malloc(EnvSize);
270 for (I = 0; I != NumEnv; ++I) {
271 char *Name = String_val(Field(Field(Env, I), 0)),
272 *Value = String_val(Field(Field(Env, I), 1));
273 int NameLen = strlen(Name),
274 ValueLen = strlen(Value);
277 memcpy(Pos, Name, NameLen);
280 memcpy(Pos, Value, ValueLen);
286 Result = LLVMRunFunctionAsMain(EE, F, NumArgs, CArgs, CEnv);
292 CAMLreturn(Val_int(Result));
295 /* llvalue -> ExecutionEngine.t -> unit */
296 CAMLprim value llvm_ee_free_machine_code(LLVMValueRef F,
297 LLVMExecutionEngineRef EE) {
298 LLVMFreeMachineCodeForFunction(EE, F);