1 files changed, 54 insertions, 0 deletions
diff --git a/bindings/ocaml/linker/linker_ocaml.c b/bindings/ocaml/linker/linker_ocaml.c
new file mode 100644
index 0000000000..2491e3b8fa
--- /dev/null
+++ b/bindings/ocaml/linker/linker_ocaml.c
@@ -0,0 +1,54 @@
+/*===-- linker_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/Linker.h"
+#include "caml/alloc.h"
+#include "caml/memory.h"
+#include "caml/fail.h"
+
+static value llvm_linker_error_exn;
+
+CAMLprim value llvm_register_linker_exns(value Error) {
+  llvm_linker_error_exn = Field(Error, 0);
+  register_global_root(&llvm_linker_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
+}
+
+/* llmodule -> llmodule -> Mode.t -> unit
+   raises Error msg on error */
+CAMLprim value llvm_link_modules(LLVMModuleRef Dst, LLVMModuleRef Src, value Mode) {
+  char* Message;
+
+  if (LLVMLinkModules(Dst, Src, Int_val(Mode), &Message))
+    llvm_raise(llvm_linker_error_exn, Message);
+
+  return Val_unit;
+}