1(*===-- llvm_executionengine.ml - LLVM OCaml Interface --------*- OCaml -*-===*
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
10exception Error of string
11
12let () = Callback.register_exception "Llvm_executionengine.Error" (Error "")
13
14external initialize : unit -> bool
15  = "llvm_ee_initialize"
16
17type llexecutionengine
18
19type llcompileroptions = {
20  opt_level: int;
21  code_model: Llvm_target.CodeModel.t;
22  no_framepointer_elim: bool;
23  enable_fast_isel: bool;
24}
25
26let default_compiler_options = {
27  opt_level = 0;
28  code_model = Llvm_target.CodeModel.JITDefault;
29  no_framepointer_elim = false;
30  enable_fast_isel = false }
31
32external create : ?options:llcompileroptions -> Llvm.llmodule -> llexecutionengine
33  = "llvm_ee_create"
34external dispose : llexecutionengine -> unit
35  = "llvm_ee_dispose"
36external add_module : Llvm.llmodule -> llexecutionengine -> unit
37  = "llvm_ee_add_module"
38external remove_module : Llvm.llmodule -> llexecutionengine -> unit
39  = "llvm_ee_remove_module"
40external run_static_ctors : llexecutionengine -> unit
41  = "llvm_ee_run_static_ctors"
42external run_static_dtors : llexecutionengine -> unit
43  = "llvm_ee_run_static_dtors"
44external data_layout : llexecutionengine -> Llvm_target.DataLayout.t
45  = "llvm_ee_get_data_layout"
46external add_global_mapping_ : Llvm.llvalue -> nativeint -> llexecutionengine -> unit
47  = "llvm_ee_add_global_mapping"
48external get_global_value_address_ : string -> llexecutionengine -> nativeint
49  = "llvm_ee_get_global_value_address"
50external get_function_address_ : string -> llexecutionengine -> nativeint
51  = "llvm_ee_get_function_address"
52
53let add_global_mapping llval ptr ee =
54  add_global_mapping_ llval (Ctypes.raw_address_of_ptr (Ctypes.to_voidp ptr)) ee
55
56let get_global_value_address name typ ee =
57  let vptr = get_global_value_address_ name ee in
58  if Nativeint.to_int vptr <> 0 then
59    let open Ctypes in !@ (coerce (ptr void) (ptr typ) (ptr_of_raw_address vptr))
60  else
61    raise (Error ("Value " ^ name ^ " not found"))
62
63let get_function_address name typ ee =
64  let fptr = get_function_address_ name ee in
65  if Nativeint.to_int fptr <> 0 then
66    let open Ctypes in coerce (ptr void) typ (ptr_of_raw_address fptr)
67  else
68    raise (Error ("Function " ^ name ^ " not found"))
69
70(* The following are not bound. Patches are welcome.
71target_machine : llexecutionengine -> Llvm_target.TargetMachine.t
72 *)
73