test/Bindings/OCaml/executionengine.ml

   1 (* RUN: rm -rf %t && mkdir -p %t && cp %s %t/executionengine.ml
   2  * RUN: %ocamlc -g -w +A -package llvm.executionengine -linkpkg %t/executionengine.ml -o %t/executable
   3  * RUN: %t/executable
   4  * RUN: %ocamlopt -g -w +A -package llvm.executionengine -linkpkg %t/executionengine.ml -o %t/executable
   5  * RUN: %t/executable
   6  * REQUIRES: native, object-emission
   7  * XFAIL: vg_leak
   8  *)
   9
  10 open Llvm
  11 open Llvm_executionengine
  12 open Llvm_target
  13
  14 (* Note that this takes a moment to link, so it's best to keep the number of
  15    individual tests low. *)
  16
  17 let context = global_context ()
  18 let i8_type = Llvm.i8_type context
  19 let i32_type = Llvm.i32_type context
  20 let i64_type = Llvm.i64_type context
  21 let double_type = Llvm.double_type context
  22
  23 let () =
  24   assert (Llvm_executionengine.initialize ())
  25
  26 let bomb msg =
  27   prerr_endline msg;
  28   exit 2
  29
  30 let define_getglobal m pg =
  31   let fn = define_function "getglobal" (function_type i32_type [||]) m in
  32   let b = builder_at_end (global_context ()) (entry_block fn) in
  33   let g = build_call pg [||] "" b in
  34   ignore (build_ret g b);
  35   fn
  36
  37 let define_plus m =
  38   let fn = define_function "plus" (function_type i32_type [| i32_type;
  39                                                              i32_type |]) m in
  40   let b = builder_at_end (global_context ()) (entry_block fn) in
  41   let add = build_add (param fn 0) (param fn 1) "sum" b in
  42   ignore (build_ret add b);
  43   fn
  44
  45 let test_executionengine () =
  46   let open Ctypes in
  47
  48   (* create *)
  49   let m = create_module (global_context ()) "test_module" in
  50   let ee = create m in
  51
  52   (* add plus *)
  53   ignore (define_plus m);
  54
  55   (* declare global variable *)
  56   ignore (define_global "globvar" (const_int i32_type 23) m);
  57
  58   (* add module *)
  59   let m2 = create_module (global_context ()) "test_module2" in
  60   add_module m2 ee;
  61
  62   (* add global mapping *)
  63   (* BROKEN: see PR20656 *)
  64   (* let g = declare_function "g" (function_type i32_type [||]) m2 in
  65   let cg = coerce (Foreign.funptr (void @-> returning int32_t)) (ptr void)
  66                                   (fun () -> 42l) in
  67   add_global_mapping g cg ee;
  68
  69   (* check g *)
  70   let cg' = get_pointer_to_global g (ptr void) ee in
  71   if 0 <> ptr_compare cg cg' then bomb "int pointers to g differ";
  72
  73   (* add getglobal *)
  74   let getglobal = define_getglobal m2 g in*)
  75
  76   (* run_static_ctors *)
  77   run_static_ctors ee;
  78
  79   (* get a handle on globvar *)
  80   let varh    = get_global_value_address "globvar" int32_t ee in
  81   if 23l <> varh then bomb "get_global_value_address didn't work";
  82
  83   (* call plus *)
  84   let cplusty = Foreign.funptr (int32_t @-> int32_t @-> returning int32_t) in
  85   let cplus   = get_function_address "plus" cplusty ee in
  86   if 4l <> cplus 2l 2l then bomb "plus didn't work";
  87
  88   (* call getglobal *)
  89   (* let cgetglobalty = Foreign.funptr (void @-> returning int32_t) in
  90   let cgetglobal   = get_pointer_to_global getglobal cgetglobalty ee in
  91   if 42l <> cgetglobal () then bomb "getglobal didn't work"; *)
  92
  93   (* remove_module *)
  94   remove_module m2 ee;
  95   dispose_module m2;
  96
  97   (* run_static_dtors *)
  98   run_static_dtors ee;
  99
 100   (* Show that the data layout binding links and runs.*)
 101   let dl = data_layout ee in
 102
 103   (* Demonstrate that a garbage pointer wasn't returned. *)
 104   let ty = DataLayout.intptr_type context dl in
 105   if ty != i32_type && ty != i64_type then bomb "target_data did not work";
 106
 107   (* dispose *)
 108   dispose ee
 109
 110 let () =
 111   test_executionengine ();
 112   Gc.compact ()