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/* { dg-do run { xfail mips*-*-* arm*-*-* strongarm*-*-* xscale*-*-* } } */
10#include "ffitest.h"
11
12typedef struct cls_struct_1_1byte {
13  unsigned char a;
14} cls_struct_1_1byte;
15
16cls_struct_1_1byte cls_struct_1_1byte_fn(struct cls_struct_1_1byte a1,
17			    struct cls_struct_1_1byte a2)
18{
19  struct cls_struct_1_1byte result;
20
21  result.a = a1.a + a2.a;
22
23  printf("%d %d: %d\n", a1.a, a2.a, result.a);
24
25  return  result;
26}
27
28static void
29cls_struct_1_1byte_gn(ffi_cif* cif, void* resp, void** args, void* userdata)
30{
31  struct cls_struct_1_1byte a1, a2;
32
33  a1 = *(struct cls_struct_1_1byte*)(args[0]);
34  a2 = *(struct cls_struct_1_1byte*)(args[1]);
35
36  *(cls_struct_1_1byte*)resp = cls_struct_1_1byte_fn(a1, a2);
37}
38
39int main (void)
40{
41  ffi_cif cif;
42#ifndef USING_MMAP
43  static ffi_closure cl;
44#endif
45  ffi_closure *pcl;
46  void* args_dbl[5];
47  ffi_type* cls_struct_fields[2];
48  ffi_type cls_struct_type;
49  ffi_type* dbl_arg_types[5];
50
51#ifdef USING_MMAP
52  pcl = allocate_mmap (sizeof(ffi_closure));
53#else
54  pcl = &cl;
55#endif
56
57  cls_struct_type.size = 0;
58  cls_struct_type.alignment = 0;
59  cls_struct_type.type = FFI_TYPE_STRUCT;
60  cls_struct_type.elements = cls_struct_fields;
61
62  struct cls_struct_1_1byte g_dbl = { 12 };
63  struct cls_struct_1_1byte f_dbl = { 178 };
64  struct cls_struct_1_1byte res_dbl;
65
66  cls_struct_fields[0] = &ffi_type_uchar;
67  cls_struct_fields[1] = NULL;
68
69  dbl_arg_types[0] = &cls_struct_type;
70  dbl_arg_types[1] = &cls_struct_type;
71  dbl_arg_types[2] = NULL;
72
73  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
74		     dbl_arg_types) == FFI_OK);
75
76  args_dbl[0] = &g_dbl;
77  args_dbl[1] = &f_dbl;
78  args_dbl[2] = NULL;
79
80  ffi_call(&cif, FFI_FN(cls_struct_1_1byte_fn), &res_dbl, args_dbl);
81  /* { dg-output "12 178: 190" } */
82  printf("res: %d\n", res_dbl.a);
83  /* { dg-output "\nres: 190" } */
84
85  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_1_1byte_gn, NULL) == FFI_OK);
86
87  res_dbl = ((cls_struct_1_1byte(*)(cls_struct_1_1byte, cls_struct_1_1byte))(pcl))(g_dbl, f_dbl);
88  /* { dg-output "\n12 178: 190" } */
89  printf("res: %d\n", res_dbl.a);
90  /* { dg-output "\nres: 190" } */
91
92  exit(0);
93}
94