--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bindings/ocaml/target/target_ocaml.c	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,390 @@
+/*===-- target_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/Target.h"
+#include "llvm-c/TargetMachine.h"
+#include "caml/alloc.h"
+#include "caml/fail.h"
+#include "caml/memory.h"
+#include "caml/custom.h"
+
+/*===---- Exceptions ------------------------------------------------------===*/
+
+static value llvm_target_error_exn;
+
+CAMLprim value llvm_register_target_exns(value Error) {
+  llvm_target_error_exn = Field(Error, 0);
+  register_global_root(&llvm_target_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
+}
+
+static value llvm_string_of_message(char* Message) {
+  value String = caml_copy_string(Message);
+  LLVMDisposeMessage(Message);
+
+  return String;
+}
+
+/*===---- Data Layout -----------------------------------------------------===*/
+
+#define DataLayout_val(v)  (*(LLVMTargetDataRef *)(Data_custom_val(v)))
+
+static void llvm_finalize_data_layout(value DataLayout) {
+  LLVMDisposeTargetData(DataLayout_val(DataLayout));
+}
+
+static struct custom_operations llvm_data_layout_ops = {
+  (char *) "LLVMDataLayout",
+  llvm_finalize_data_layout,
+  custom_compare_default,
+  custom_hash_default,
+  custom_serialize_default,
+  custom_deserialize_default
+#ifdef custom_compare_ext_default
+  , custom_compare_ext_default
+#endif
+};
+
+value llvm_alloc_data_layout(LLVMTargetDataRef DataLayout) {
+  value V = alloc_custom(&llvm_data_layout_ops, sizeof(LLVMTargetDataRef),
+                         0, 1);
+  DataLayout_val(V) = DataLayout;
+  return V;
+}
+
+/* string -> DataLayout.t */
+CAMLprim value llvm_datalayout_of_string(value StringRep) {
+  return llvm_alloc_data_layout(LLVMCreateTargetData(String_val(StringRep)));
+}
+
+/* DataLayout.t -> string */
+CAMLprim value llvm_datalayout_as_string(value TD) {
+  char *StringRep = LLVMCopyStringRepOfTargetData(DataLayout_val(TD));
+  value Copy = copy_string(StringRep);
+  LLVMDisposeMessage(StringRep);
+  return Copy;
+}
+
+/* [<Llvm.PassManager.any] Llvm.PassManager.t -> DataLayout.t -> unit */
+CAMLprim value llvm_datalayout_add_to_pass_manager(LLVMPassManagerRef PM,
+                                                   value DL) {
+  LLVMAddTargetData(DataLayout_val(DL), PM);
+  return Val_unit;
+}
+
+/* DataLayout.t -> Endian.t */
+CAMLprim value llvm_datalayout_byte_order(value DL) {
+  return Val_int(LLVMByteOrder(DataLayout_val(DL)));
+}
+
+/* DataLayout.t -> int */
+CAMLprim value llvm_datalayout_pointer_size(value DL) {
+  return Val_int(LLVMPointerSize(DataLayout_val(DL)));
+}
+
+/* Llvm.llcontext -> DataLayout.t -> Llvm.lltype */
+CAMLprim LLVMTypeRef llvm_datalayout_intptr_type(LLVMContextRef C, value DL) {
+  return LLVMIntPtrTypeInContext(C, DataLayout_val(DL));;
+}
+
+/* int -> DataLayout.t -> int */
+CAMLprim value llvm_datalayout_qualified_pointer_size(value AS, value DL) {
+  return Val_int(LLVMPointerSizeForAS(DataLayout_val(DL), Int_val(AS)));
+}
+
+/* Llvm.llcontext -> int -> DataLayout.t -> Llvm.lltype */
+CAMLprim LLVMTypeRef llvm_datalayout_qualified_intptr_type(LLVMContextRef C,
+                                                           value AS,
+                                                           value DL) {
+  return LLVMIntPtrTypeForASInContext(C, DataLayout_val(DL), Int_val(AS));
+}
+
+/* Llvm.lltype -> DataLayout.t -> Int64.t */
+CAMLprim value llvm_datalayout_size_in_bits(LLVMTypeRef Ty, value DL) {
+  return caml_copy_int64(LLVMSizeOfTypeInBits(DataLayout_val(DL), Ty));
+}
+
+/* Llvm.lltype -> DataLayout.t -> Int64.t */
+CAMLprim value llvm_datalayout_store_size(LLVMTypeRef Ty, value DL) {
+  return caml_copy_int64(LLVMStoreSizeOfType(DataLayout_val(DL), Ty));
+}
+
+/* Llvm.lltype -> DataLayout.t -> Int64.t */
+CAMLprim value llvm_datalayout_abi_size(LLVMTypeRef Ty, value DL) {
+  return caml_copy_int64(LLVMABISizeOfType(DataLayout_val(DL), Ty));
+}
+
+/* Llvm.lltype -> DataLayout.t -> int */
+CAMLprim value llvm_datalayout_abi_align(LLVMTypeRef Ty, value DL) {
+  return Val_int(LLVMABIAlignmentOfType(DataLayout_val(DL), Ty));
+}
+
+/* Llvm.lltype -> DataLayout.t -> int */
+CAMLprim value llvm_datalayout_stack_align(LLVMTypeRef Ty, value DL) {
+  return Val_int(LLVMCallFrameAlignmentOfType(DataLayout_val(DL), Ty));
+}
+
+/* Llvm.lltype -> DataLayout.t -> int */
+CAMLprim value llvm_datalayout_preferred_align(LLVMTypeRef Ty, value DL) {
+  return Val_int(LLVMPreferredAlignmentOfType(DataLayout_val(DL), Ty));
+}
+
+/* Llvm.llvalue -> DataLayout.t -> int */
+CAMLprim value llvm_datalayout_preferred_align_of_global(LLVMValueRef GlobalVar,
+                                                         value DL) {
+  return Val_int(LLVMPreferredAlignmentOfGlobal(DataLayout_val(DL), GlobalVar));
+}
+
+/* Llvm.lltype -> Int64.t -> DataLayout.t -> int */
+CAMLprim value llvm_datalayout_element_at_offset(LLVMTypeRef Ty, value Offset,
+                                                 value DL) {
+  return Val_int(LLVMElementAtOffset(DataLayout_val(DL), Ty,
+                                     Int64_val(Offset)));
+}
+
+/* Llvm.lltype -> int -> DataLayout.t -> Int64.t */
+CAMLprim value llvm_datalayout_offset_of_element(LLVMTypeRef Ty, value Index,
+                                                 value DL) {
+  return caml_copy_int64(LLVMOffsetOfElement(DataLayout_val(DL), Ty,
+                                             Int_val(Index)));
+}
+
+/*===---- Target ----------------------------------------------------------===*/
+
+static value llvm_target_option(LLVMTargetRef Target) {
+  if(Target != NULL) {
+    value Result = caml_alloc_small(1, 0);
+    Store_field(Result, 0, (value) Target);
+    return Result;
+  }
+
+  return Val_int(0);
+}
+
+/* unit -> string */
+CAMLprim value llvm_target_default_triple(value Unit) {
+  char *TripleCStr = LLVMGetDefaultTargetTriple();
+  value TripleStr = caml_copy_string(TripleCStr);
+  LLVMDisposeMessage(TripleCStr);
+
+  return TripleStr;
+}
+
+/* unit -> Target.t option */
+CAMLprim value llvm_target_first(value Unit) {
+  return llvm_target_option(LLVMGetFirstTarget());
+}
+
+/* Target.t -> Target.t option */
+CAMLprim value llvm_target_succ(LLVMTargetRef Target) {
+  return llvm_target_option(LLVMGetNextTarget(Target));
+}
+
+/* string -> Target.t option */
+CAMLprim value llvm_target_by_name(value Name) {
+  return llvm_target_option(LLVMGetTargetFromName(String_val(Name)));
+}
+
+/* string -> Target.t */
+CAMLprim LLVMTargetRef llvm_target_by_triple(value Triple) {
+  LLVMTargetRef T;
+  char *Error;
+
+  if(LLVMGetTargetFromTriple(String_val(Triple), &T, &Error))
+    llvm_raise(llvm_target_error_exn, Error);
+
+  return T;
+}
+
+/* Target.t -> string */
+CAMLprim value llvm_target_name(LLVMTargetRef Target) {
+  return caml_copy_string(LLVMGetTargetName(Target));
+}
+
+/* Target.t -> string */
+CAMLprim value llvm_target_description(LLVMTargetRef Target) {
+  return caml_copy_string(LLVMGetTargetDescription(Target));
+}
+
+/* Target.t -> bool */
+CAMLprim value llvm_target_has_jit(LLVMTargetRef Target) {
+  return Val_bool(LLVMTargetHasJIT(Target));
+}
+
+/* Target.t -> bool */
+CAMLprim value llvm_target_has_target_machine(LLVMTargetRef Target) {
+  return Val_bool(LLVMTargetHasTargetMachine(Target));
+}
+
+/* Target.t -> bool */
+CAMLprim value llvm_target_has_asm_backend(LLVMTargetRef Target) {
+  return Val_bool(LLVMTargetHasAsmBackend(Target));
+}
+
+/*===---- Target Machine --------------------------------------------------===*/
+
+#define TargetMachine_val(v)  (*(LLVMTargetMachineRef *)(Data_custom_val(v)))
+
+static void llvm_finalize_target_machine(value Machine) {
+  LLVMDisposeTargetMachine(TargetMachine_val(Machine));
+}
+
+static struct custom_operations llvm_target_machine_ops = {
+  (char *) "LLVMTargetMachine",
+  llvm_finalize_target_machine,
+  custom_compare_default,
+  custom_hash_default,
+  custom_serialize_default,
+  custom_deserialize_default
+#ifdef custom_compare_ext_default
+  , custom_compare_ext_default
+#endif
+};
+
+static value llvm_alloc_targetmachine(LLVMTargetMachineRef Machine) {
+  value V = alloc_custom(&llvm_target_machine_ops, sizeof(LLVMTargetMachineRef),
+                         0, 1);
+  TargetMachine_val(V) = Machine;
+  return V;
+}
+
+/* triple:string -> ?cpu:string -> ?features:string
+   ?level:CodeGenOptLevel.t -> ?reloc_mode:RelocMode.t
+   ?code_model:CodeModel.t -> Target.t -> TargetMachine.t */
+CAMLprim value llvm_create_targetmachine_native(value Triple, value CPU,
+                  value Features, value OptLevel, value RelocMode,
+                  value CodeModel, LLVMTargetRef Target) {
+  LLVMTargetMachineRef Machine;
+  const char *CPUStr = "", *FeaturesStr = "";
+  LLVMCodeGenOptLevel OptLevelEnum = LLVMCodeGenLevelDefault;
+  LLVMRelocMode RelocModeEnum = LLVMRelocDefault;
+  LLVMCodeModel CodeModelEnum = LLVMCodeModelDefault;
+
+  if(CPU != Val_int(0))
+    CPUStr = String_val(Field(CPU, 0));
+  if(Features != Val_int(0))
+    FeaturesStr = String_val(Field(Features, 0));
+  if(OptLevel != Val_int(0))
+    OptLevelEnum = Int_val(Field(OptLevel, 0));
+  if(RelocMode != Val_int(0))
+    RelocModeEnum = Int_val(Field(RelocMode, 0));
+  if(CodeModel != Val_int(0))
+    CodeModelEnum = Int_val(Field(CodeModel, 0));
+
+  Machine = LLVMCreateTargetMachine(Target, String_val(Triple), CPUStr,
+                FeaturesStr, OptLevelEnum, RelocModeEnum, CodeModelEnum);
+
+  return llvm_alloc_targetmachine(Machine);
+}
+
+CAMLprim value llvm_create_targetmachine_bytecode(value *argv, int argn) {
+  return llvm_create_targetmachine_native(argv[0], argv[1], argv[2], argv[3],
+                                    argv[4], argv[5], (LLVMTargetRef) argv[6]);
+}
+
+/* TargetMachine.t -> Target.t */
+CAMLprim LLVMTargetRef llvm_targetmachine_target(value Machine) {
+  return LLVMGetTargetMachineTarget(TargetMachine_val(Machine));
+}
+
+/* TargetMachine.t -> string */
+CAMLprim value llvm_targetmachine_triple(value Machine) {
+  return llvm_string_of_message(LLVMGetTargetMachineTriple(
+                                TargetMachine_val(Machine)));
+}
+
+/* TargetMachine.t -> string */
+CAMLprim value llvm_targetmachine_cpu(value Machine) {
+  return llvm_string_of_message(LLVMGetTargetMachineCPU(
+                                TargetMachine_val(Machine)));
+}
+
+/* TargetMachine.t -> string */
+CAMLprim value llvm_targetmachine_features(value Machine) {
+  return llvm_string_of_message(LLVMGetTargetMachineFeatureString(
+                                TargetMachine_val(Machine)));
+}
+
+/* TargetMachine.t -> DataLayout.t */
+CAMLprim value llvm_targetmachine_data_layout(value Machine) {
+  CAMLparam1(Machine);
+  CAMLlocal1(DataLayout);
+
+  /* LLVMGetTargetMachineData returns a pointer owned by the TargetMachine,
+     so it is impossible to wrap it with llvm_alloc_target_data, which assumes
+     that OCaml owns the pointer. */
+  LLVMTargetDataRef OrigDataLayout;
+  OrigDataLayout = LLVMGetTargetMachineData(TargetMachine_val(Machine));
+
+  char* TargetDataCStr;
+  TargetDataCStr = LLVMCopyStringRepOfTargetData(OrigDataLayout);
+  DataLayout = llvm_alloc_data_layout(LLVMCreateTargetData(TargetDataCStr));
+  LLVMDisposeMessage(TargetDataCStr);
+
+  CAMLreturn(DataLayout);
+}
+
+/* TargetMachine.t -> bool -> unit */
+CAMLprim value llvm_targetmachine_set_verbose_asm(value Machine, value Verb) {
+  LLVMSetTargetMachineAsmVerbosity(TargetMachine_val(Machine), Bool_val(Verb));
+  return Val_unit;
+}
+
+/* Llvm.llmodule -> CodeGenFileType.t -> string -> TargetMachine.t -> unit */
+CAMLprim value llvm_targetmachine_emit_to_file(LLVMModuleRef Module,
+                            value FileType, value FileName, value Machine) {
+  char* ErrorMessage;
+
+  if(LLVMTargetMachineEmitToFile(TargetMachine_val(Machine), Module,
+                                 String_val(FileName), Int_val(FileType),
+                                 &ErrorMessage)) {
+    llvm_raise(llvm_target_error_exn, ErrorMessage);
+  }
+
+  return Val_unit;
+}
+
+/* Llvm.llmodule -> CodeGenFileType.t -> TargetMachine.t ->
+   Llvm.llmemorybuffer */
+CAMLprim LLVMMemoryBufferRef llvm_targetmachine_emit_to_memory_buffer(
+                                LLVMModuleRef Module, value FileType,
+                                value Machine) {
+  char* ErrorMessage;
+  LLVMMemoryBufferRef Buffer;
+
+  if(LLVMTargetMachineEmitToMemoryBuffer(TargetMachine_val(Machine), Module,
+                                         Int_val(FileType), &ErrorMessage,
+                                         &Buffer)) {
+    llvm_raise(llvm_target_error_exn, ErrorMessage);
+  }
+
+  return Buffer;
+}