1/* Area:	ffi_call, closure_call
2   Purpose:	Check structure passing with different structure size.
3		Especially with small structures which may fit in one
4		register. Depending on the ABI.
5   Limitations:	none.
6   PR:		none.
7   Originator:	<andreast@gcc.gnu.org> 20030902	 */
8
9
10
11/* { dg-do run } */
12#include "ffitest.h"
13
14typedef struct cls_struct_1_1byte {
15  unsigned char a;
16} cls_struct_1_1byte;
17
18cls_struct_1_1byte cls_struct_1_1byte_fn(struct cls_struct_1_1byte a1,
19			    struct cls_struct_1_1byte a2)
20{
21  struct cls_struct_1_1byte result;
22
23  result.a = a1.a + a2.a;
24
25  printf("%d %d: %d\n", a1.a, a2.a, result.a);
26
27  return  result;
28}
29
30static void
31cls_struct_1_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
32		      void* userdata __UNUSED__)
33{
34
35  struct cls_struct_1_1byte a1, a2;
36
37  a1 = *(struct cls_struct_1_1byte*)(args[0]);
38  a2 = *(struct cls_struct_1_1byte*)(args[1]);
39
40  *(cls_struct_1_1byte*)resp = cls_struct_1_1byte_fn(a1, a2);
41}
42
43int main (void)
44{
45  ffi_cif cif;
46#ifndef USING_MMAP
47  static ffi_closure cl;
48#endif
49  ffi_closure *pcl;
50  void* args_dbl[5];
51  ffi_type* cls_struct_fields[2];
52  ffi_type cls_struct_type;
53  ffi_type* dbl_arg_types[5];
54
55#ifdef USING_MMAP
56  pcl = allocate_mmap (sizeof(ffi_closure));
57#else
58  pcl = &cl;
59#endif
60
61  cls_struct_type.size = 0;
62  cls_struct_type.alignment = 0;
63  cls_struct_type.type = FFI_TYPE_STRUCT;
64  cls_struct_type.elements = cls_struct_fields;
65
66  struct cls_struct_1_1byte g_dbl = { 12 };
67  struct cls_struct_1_1byte f_dbl = { 178 };
68  struct cls_struct_1_1byte res_dbl;
69
70  cls_struct_fields[0] = &ffi_type_uchar;
71  cls_struct_fields[1] = NULL;
72
73  dbl_arg_types[0] = &cls_struct_type;
74  dbl_arg_types[1] = &cls_struct_type;
75  dbl_arg_types[2] = NULL;
76
77  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
78		     dbl_arg_types) == FFI_OK);
79
80  args_dbl[0] = &g_dbl;
81  args_dbl[1] = &f_dbl;
82  args_dbl[2] = NULL;
83
84  ffi_call(&cif, FFI_FN(cls_struct_1_1byte_fn), &res_dbl, args_dbl);
85  /* { dg-output "12 178: 190" } */
86  printf("res: %d\n", res_dbl.a);
87  /* { dg-output "\nres: 190" } */
88
89  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_1_1byte_gn, NULL) == FFI_OK);
90
91  res_dbl = ((cls_struct_1_1byte(*)(cls_struct_1_1byte, cls_struct_1_1byte))(pcl))(g_dbl, f_dbl);
92  /* { dg-output "\n12 178: 190" } */
93  printf("res: %d\n", res_dbl.a);
94  /* { dg-output "\nres: 190" } */
95
96  exit(0);
97}
98