bindings/ocaml/linker/linker_ocaml.c

   1 /*===-- linker_ocaml.c - LLVM Ocaml Glue ------------------------*- C++ -*-===*\
   2 |*                                                                            *|
   3 |*                     The LLVM Compiler Infrastructure                       *|
   4 |*                                                                            *|
   5 |* This file is distributed under the University of Illinois Open Source      *|
   6 |* License. See LICENSE.TXT for details.                                      *|
   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/Linker.h"
  19 #include "caml/alloc.h"
  20 #include "caml/memory.h"
  21 #include "caml/fail.h"
  22 #include "caml/callback.h"
  23
  24 static void llvm_raise(value Prototype, char *Message) {
  25   CAMLparam1(Prototype);
  26   CAMLlocal1(CamlMessage);
  27
  28   CamlMessage = copy_string(Message);
  29   LLVMDisposeMessage(Message);
  30
  31   raise_with_arg(Prototype, CamlMessage);
  32   CAMLnoreturn;
  33 }
  34
  35 /* llmodule -> llmodule -> Mode.t -> unit */
  36 CAMLprim value llvm_link_modules(LLVMModuleRef Dst, LLVMModuleRef Src, value Mode) {
  37   char* Message;
  38
  39   if (LLVMLinkModules(Dst, Src, Int_val(Mode), &Message))
  40     llvm_raise(*caml_named_value("Llvm_linker.Error"), Message);
  41
  42   return Val_unit;
  43 }