bindings/ocaml/linker/linker_ocaml.c

   1 /*===-- linker_ocaml.c - LLVM OCaml Glue ------------------------*- C++ -*-===*\
   2 |*                                                                            *|
   3 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
   4 |* Exceptions.                                                                *|
   5 |* See https://llvm.org/LICENSE.txt for license information.                  *|
   6 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
   7 |*                                                                            *|
   8 |*===----------------------------------------------------------------------===*|
   9 |*                                                                            *|
  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.    *|
  12 |*                                                                            *|
  13 |* Note that these functions intentionally take liberties with the CAMLparamX *|
  14 |* macros, since most of the parameters are not GC heap objects.              *|
  15 |*                                                                            *|
  16 \*===----------------------------------------------------------------------===*/
  17
  18 #include "llvm-c/Core.h"
  19 #include "llvm-c/Linker.h"
  20 #include "caml/alloc.h"
  21 #include "caml/memory.h"
  22 #include "caml/fail.h"
  23 #include "caml/callback.h"
  24
  25 void llvm_raise(value Prototype, char *Message);
  26
  27 /* llmodule -> llmodule -> unit */
  28 CAMLprim value llvm_link_modules(LLVMModuleRef Dst, LLVMModuleRef Src) {
  29   if (LLVMLinkModules2(Dst, Src))
  30     llvm_raise(*caml_named_value("Llvm_linker.Error"), LLVMCreateMessage("Linking failed"));
  31
  32   return Val_unit;
  33 }