/3rd_party/llvm/bindings/ocaml/executionengine/executionengine_ocaml.c
https://code.google.com/p/softart/ · C · 341 lines · 235 code · 55 blank · 51 comment · 17 complexity · b923d60b336262928a165d7e6ef24bb3 MD5 · raw file
- /*===-- executionengine_ocaml.c - LLVM OCaml Glue ---------------*- C++ -*-===*\
- |* *|
- |* The LLVM Compiler Infrastructure *|
- |* *|
- |* This file is distributed under the University of Illinois Open Source *|
- |* License. See LICENSE.TXT for details. *|
- |* *|
- |*===----------------------------------------------------------------------===*|
- |* *|
- |* This file glues LLVM's OCaml interface to its C interface. These functions *|
- |* are by and large transparent wrappers to the corresponding C functions. *|
- |* *|
- |* Note that these functions intentionally take liberties with the CAMLparamX *|
- |* macros, since most of the parameters are not GC heap objects. *|
- |* *|
- \*===----------------------------------------------------------------------===*/
- #include "llvm-c/ExecutionEngine.h"
- #include "llvm-c/Target.h"
- #include "caml/alloc.h"
- #include "caml/custom.h"
- #include "caml/fail.h"
- #include "caml/memory.h"
- #include <string.h>
- #include <assert.h>
- /* Force the LLVM interpreter and JIT to be linked in. */
- void llvm_initialize(void) {
- LLVMLinkInInterpreter();
- LLVMLinkInJIT();
- }
- /* unit -> bool */
- CAMLprim value llvm_initialize_native_target(value Unit) {
- return Val_bool(LLVMInitializeNativeTarget());
- }
- /* Can't use the recommended caml_named_value mechanism for backwards
- compatibility reasons. This is largely equivalent. */
- static value llvm_ee_error_exn;
- CAMLprim value llvm_register_ee_exns(value Error) {
- llvm_ee_error_exn = Field(Error, 0);
- register_global_root(&llvm_ee_error_exn);
- return Val_unit;
- }
- static void llvm_raise(value Prototype, char *Message) {
- CAMLparam1(Prototype);
- CAMLlocal1(CamlMessage);
-
- CamlMessage = copy_string(Message);
- LLVMDisposeMessage(Message);
-
- raise_with_arg(Prototype, CamlMessage);
- abort(); /* NOTREACHED */
- #ifdef CAMLnoreturn
- CAMLnoreturn; /* Silences warnings, but is missing in some versions. */
- #endif
- }
- /*--... Operations on generic values .......................................--*/
- #define Genericvalue_val(v) (*(LLVMGenericValueRef *)(Data_custom_val(v)))
- static void llvm_finalize_generic_value(value GenVal) {
- LLVMDisposeGenericValue(Genericvalue_val(GenVal));
- }
- static struct custom_operations generic_value_ops = {
- (char *) "LLVMGenericValue",
- llvm_finalize_generic_value,
- custom_compare_default,
- custom_hash_default,
- custom_serialize_default,
- custom_deserialize_default
- #ifdef custom_compare_ext_default
- , custom_compare_ext_default
- #endif
- };
- static value alloc_generic_value(LLVMGenericValueRef Ref) {
- value Val = alloc_custom(&generic_value_ops, sizeof(LLVMGenericValueRef), 0, 1);
- Genericvalue_val(Val) = Ref;
- return Val;
- }
- /* Llvm.lltype -> float -> t */
- CAMLprim value llvm_genericvalue_of_float(LLVMTypeRef Ty, value N) {
- CAMLparam1(N);
- CAMLreturn(alloc_generic_value(
- LLVMCreateGenericValueOfFloat(Ty, Double_val(N))));
- }
- /* 'a -> t */
- CAMLprim value llvm_genericvalue_of_pointer(value V) {
- CAMLparam1(V);
- CAMLreturn(alloc_generic_value(LLVMCreateGenericValueOfPointer(Op_val(V))));
- }
- /* Llvm.lltype -> int -> t */
- CAMLprim value llvm_genericvalue_of_int(LLVMTypeRef Ty, value Int) {
- return alloc_generic_value(LLVMCreateGenericValueOfInt(Ty, Int_val(Int), 1));
- }
- /* Llvm.lltype -> int32 -> t */
- CAMLprim value llvm_genericvalue_of_int32(LLVMTypeRef Ty, value Int32) {
- CAMLparam1(Int32);
- CAMLreturn(alloc_generic_value(
- LLVMCreateGenericValueOfInt(Ty, Int32_val(Int32), 1)));
- }
- /* Llvm.lltype -> nativeint -> t */
- CAMLprim value llvm_genericvalue_of_nativeint(LLVMTypeRef Ty, value NatInt) {
- CAMLparam1(NatInt);
- CAMLreturn(alloc_generic_value(
- LLVMCreateGenericValueOfInt(Ty, Nativeint_val(NatInt), 1)));
- }
- /* Llvm.lltype -> int64 -> t */
- CAMLprim value llvm_genericvalue_of_int64(LLVMTypeRef Ty, value Int64) {
- CAMLparam1(Int64);
- CAMLreturn(alloc_generic_value(
- LLVMCreateGenericValueOfInt(Ty, Int64_val(Int64), 1)));
- }
- /* Llvm.lltype -> t -> float */
- CAMLprim value llvm_genericvalue_as_float(LLVMTypeRef Ty, value GenVal) {
- CAMLparam1(GenVal);
- CAMLreturn(copy_double(
- LLVMGenericValueToFloat(Ty, Genericvalue_val(GenVal))));
- }
- /* t -> 'a */
- CAMLprim value llvm_genericvalue_as_pointer(value GenVal) {
- return Val_op(LLVMGenericValueToPointer(Genericvalue_val(GenVal)));
- }
- /* t -> int */
- CAMLprim value llvm_genericvalue_as_int(value GenVal) {
- assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 8 * sizeof(value)
- && "Generic value too wide to treat as an int!");
- return Val_int(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1));
- }
- /* t -> int32 */
- CAMLprim value llvm_genericvalue_as_int32(value GenVal) {
- CAMLparam1(GenVal);
- assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 32
- && "Generic value too wide to treat as an int32!");
- CAMLreturn(copy_int32(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1)));
- }
- /* t -> int64 */
- CAMLprim value llvm_genericvalue_as_int64(value GenVal) {
- CAMLparam1(GenVal);
- assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 64
- && "Generic value too wide to treat as an int64!");
- CAMLreturn(copy_int64(LLVMGenericValueToInt(Genericvalue_val(GenVal), 1)));
- }
- /* t -> nativeint */
- CAMLprim value llvm_genericvalue_as_nativeint(value GenVal) {
- CAMLparam1(GenVal);
- assert(LLVMGenericValueIntWidth(Genericvalue_val(GenVal)) <= 8 * sizeof(value)
- && "Generic value too wide to treat as a nativeint!");
- CAMLreturn(copy_nativeint(LLVMGenericValueToInt(Genericvalue_val(GenVal),1)));
- }
- /*--... Operations on execution engines ....................................--*/
- /* llmodule -> ExecutionEngine.t */
- CAMLprim LLVMExecutionEngineRef llvm_ee_create(LLVMModuleRef M) {
- LLVMExecutionEngineRef Interp;
- char *Error;
- if (LLVMCreateExecutionEngineForModule(&Interp, M, &Error))
- llvm_raise(llvm_ee_error_exn, Error);
- return Interp;
- }
- /* llmodule -> ExecutionEngine.t */
- CAMLprim LLVMExecutionEngineRef
- llvm_ee_create_interpreter(LLVMModuleRef M) {
- LLVMExecutionEngineRef Interp;
- char *Error;
- if (LLVMCreateInterpreterForModule(&Interp, M, &Error))
- llvm_raise(llvm_ee_error_exn, Error);
- return Interp;
- }
- /* llmodule -> int -> ExecutionEngine.t */
- CAMLprim LLVMExecutionEngineRef
- llvm_ee_create_jit(LLVMModuleRef M, value OptLevel) {
- LLVMExecutionEngineRef JIT;
- char *Error;
- if (LLVMCreateJITCompilerForModule(&JIT, M, Int_val(OptLevel), &Error))
- llvm_raise(llvm_ee_error_exn, Error);
- return JIT;
- }
- /* ExecutionEngine.t -> unit */
- CAMLprim value llvm_ee_dispose(LLVMExecutionEngineRef EE) {
- LLVMDisposeExecutionEngine(EE);
- return Val_unit;
- }
- /* llmodule -> ExecutionEngine.t -> unit */
- CAMLprim value llvm_ee_add_module(LLVMModuleRef M, LLVMExecutionEngineRef EE) {
- LLVMAddModule(EE, M);
- return Val_unit;
- }
- /* llmodule -> ExecutionEngine.t -> llmodule */
- CAMLprim LLVMModuleRef llvm_ee_remove_module(LLVMModuleRef M,
- LLVMExecutionEngineRef EE) {
- LLVMModuleRef RemovedModule;
- char *Error;
- if (LLVMRemoveModule(EE, M, &RemovedModule, &Error))
- llvm_raise(llvm_ee_error_exn, Error);
- return RemovedModule;
- }
- /* string -> ExecutionEngine.t -> llvalue option */
- CAMLprim value llvm_ee_find_function(value Name, LLVMExecutionEngineRef EE) {
- CAMLparam1(Name);
- CAMLlocal1(Option);
- LLVMValueRef Found;
- if (LLVMFindFunction(EE, String_val(Name), &Found))
- CAMLreturn(Val_unit);
- Option = alloc(1, 0);
- Field(Option, 0) = Val_op(Found);
- CAMLreturn(Option);
- }
- /* llvalue -> GenericValue.t array -> ExecutionEngine.t -> GenericValue.t */
- CAMLprim value llvm_ee_run_function(LLVMValueRef F, value Args,
- LLVMExecutionEngineRef EE) {
- unsigned NumArgs;
- LLVMGenericValueRef Result, *GVArgs;
- unsigned I;
-
- NumArgs = Wosize_val(Args);
- GVArgs = (LLVMGenericValueRef*) malloc(NumArgs * sizeof(LLVMGenericValueRef));
- for (I = 0; I != NumArgs; ++I)
- GVArgs[I] = Genericvalue_val(Field(Args, I));
-
- Result = LLVMRunFunction(EE, F, NumArgs, GVArgs);
-
- free(GVArgs);
- return alloc_generic_value(Result);
- }
- /* ExecutionEngine.t -> unit */
- CAMLprim value llvm_ee_run_static_ctors(LLVMExecutionEngineRef EE) {
- LLVMRunStaticConstructors(EE);
- return Val_unit;
- }
- /* ExecutionEngine.t -> unit */
- CAMLprim value llvm_ee_run_static_dtors(LLVMExecutionEngineRef EE) {
- LLVMRunStaticDestructors(EE);
- return Val_unit;
- }
- /* llvalue -> string array -> (string * string) array -> ExecutionEngine.t ->
- int */
- CAMLprim value llvm_ee_run_function_as_main(LLVMValueRef F,
- value Args, value Env,
- LLVMExecutionEngineRef EE) {
- CAMLparam2(Args, Env);
- int I, NumArgs, NumEnv, EnvSize, Result;
- const char **CArgs, **CEnv;
- char *CEnvBuf, *Pos;
-
- NumArgs = Wosize_val(Args);
- NumEnv = Wosize_val(Env);
-
- /* Build the environment. */
- CArgs = (const char **) malloc(NumArgs * sizeof(char*));
- for (I = 0; I != NumArgs; ++I)
- CArgs[I] = String_val(Field(Args, I));
-
- /* Compute the size of the environment string buffer. */
- for (I = 0, EnvSize = 0; I != NumEnv; ++I) {
- EnvSize += strlen(String_val(Field(Field(Env, I), 0))) + 1;
- EnvSize += strlen(String_val(Field(Field(Env, I), 1))) + 1;
- }
-
- /* Build the environment. */
- CEnv = (const char **) malloc((NumEnv + 1) * sizeof(char*));
- CEnvBuf = (char*) malloc(EnvSize);
- Pos = CEnvBuf;
- for (I = 0; I != NumEnv; ++I) {
- char *Name = String_val(Field(Field(Env, I), 0)),
- *Value = String_val(Field(Field(Env, I), 1));
- int NameLen = strlen(Name),
- ValueLen = strlen(Value);
-
- CEnv[I] = Pos;
- memcpy(Pos, Name, NameLen);
- Pos += NameLen;
- *Pos++ = '=';
- memcpy(Pos, Value, ValueLen);
- Pos += ValueLen;
- *Pos++ = '\0';
- }
- CEnv[NumEnv] = NULL;
-
- Result = LLVMRunFunctionAsMain(EE, F, NumArgs, CArgs, CEnv);
-
- free(CArgs);
- free(CEnv);
- free(CEnvBuf);
-
- CAMLreturn(Val_int(Result));
- }
- /* llvalue -> ExecutionEngine.t -> unit */
- CAMLprim value llvm_ee_free_machine_code(LLVMValueRef F,
- LLVMExecutionEngineRef EE) {
- LLVMFreeMachineCodeForFunction(EE, F);
- return Val_unit;
- }
- extern value llvm_alloc_data_layout(LLVMTargetDataRef TargetData);
- /* ExecutionEngine.t -> Llvm_target.DataLayout.t */
- CAMLprim value llvm_ee_get_data_layout(LLVMExecutionEngineRef EE) {
- value DataLayout;
- LLVMTargetDataRef OrigDataLayout;
- OrigDataLayout = LLVMGetExecutionEngineTargetData(EE);
- char* TargetDataCStr;
- TargetDataCStr = LLVMCopyStringRepOfTargetData(OrigDataLayout);
- DataLayout = llvm_alloc_data_layout(LLVMCreateTargetData(TargetDataCStr));
- LLVMDisposeMessage(TargetDataCStr);
- return DataLayout;
- }