[OCaml] Accept context explicitly in Llvm_target functions
[oota-llvm.git] / 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
23 static value llvm_linker_error_exn;
24
25 CAMLprim value llvm_register_linker_exns(value Error) {
26   llvm_linker_error_exn = Field(Error, 0);
27   register_global_root(&llvm_linker_error_exn);
28   return Val_unit;
29 }
30
31 static void llvm_raise(value Prototype, char *Message) {
32   CAMLparam1(Prototype);
33   CAMLlocal1(CamlMessage);
34
35   CamlMessage = copy_string(Message);
36   LLVMDisposeMessage(Message);
37
38   raise_with_arg(Prototype, CamlMessage);
39   abort(); /* NOTREACHED */
40 #ifdef CAMLnoreturn
41   CAMLnoreturn; /* Silences warnings, but is missing in some versions. */
42 #endif
43 }
44
45 /* llmodule -> llmodule -> Mode.t -> unit
46    raises Error msg on error */
47 CAMLprim value llvm_link_modules(LLVMModuleRef Dst, LLVMModuleRef Src, value Mode) {
48   char* Message;
49
50   if (LLVMLinkModules(Dst, Src, Int_val(Mode), &Message))
51     llvm_raise(llvm_linker_error_exn, Message);
52
53   return Val_unit;
54 }