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. Check overlapping.
5   Limitations:	none.
6   PR:		none.
7   Originator:	<andreast@gcc.gnu.org> 20030828	 */
8
9/* { dg-do run { xfail mips*-*-* arm*-*-* strongarm*-*-* xscale*-*-* } } */
10#include "ffitest.h"
11
12typedef struct cls_struct_3byte {
13  unsigned short a;
14  unsigned char b;
15} cls_struct_3byte;
16
17cls_struct_3byte cls_struct_3byte_fn(struct cls_struct_3byte a1,
18			    struct cls_struct_3byte a2)
19{
20  struct cls_struct_3byte result;
21
22  result.a = a1.a + a2.a;
23  result.b = a1.b + a2.b;
24
25  printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
26
27  return  result;
28}
29
30static void
31cls_struct_3byte_gn(ffi_cif* cif, void* resp, void** args, void* userdata)
32{
33
34  struct cls_struct_3byte a1, a2;
35
36  a1 = *(struct cls_struct_3byte*)(args[0]);
37  a2 = *(struct cls_struct_3byte*)(args[1]);
38
39  *(cls_struct_3byte*)resp = cls_struct_3byte_fn(a1, a2);
40}
41
42int main (void)
43{
44  ffi_cif cif;
45#ifndef USING_MMAP
46  static ffi_closure cl;
47#endif
48  ffi_closure *pcl;
49  void* args_dbl[5];
50  ffi_type* cls_struct_fields[4];
51  ffi_type cls_struct_type;
52  ffi_type* dbl_arg_types[5];
53
54#ifdef USING_MMAP
55  pcl = allocate_mmap (sizeof(ffi_closure));
56#else
57  pcl = &cl;
58#endif
59
60  cls_struct_type.size = 0;
61  cls_struct_type.alignment = 0;
62  cls_struct_type.type = FFI_TYPE_STRUCT;
63  cls_struct_type.elements = cls_struct_fields;
64
65  struct cls_struct_3byte g_dbl = { 12, 119 };
66  struct cls_struct_3byte f_dbl = { 1, 15 };
67  struct cls_struct_3byte res_dbl;
68
69  cls_struct_fields[0] = &ffi_type_ushort;
70  cls_struct_fields[1] = &ffi_type_uchar;
71  cls_struct_fields[2] = 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_3byte_fn), &res_dbl, args_dbl);
85  /* { dg-output "12 119 1 15: 13 134" } */
86  printf("res: %d %d\n", res_dbl.a, res_dbl.b);
87  /* { dg-output "\nres: 13 134" } */
88
89  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_3byte_gn, NULL) == FFI_OK);
90
91  res_dbl = ((cls_struct_3byte(*)(cls_struct_3byte, cls_struct_3byte))(pcl))(g_dbl, f_dbl);
92  /* { dg-output "\n12 119 1 15: 13 134" } */
93  printf("res: %d %d\n", res_dbl.a, res_dbl.b);
94  /* { dg-output "\nres: 13 134" } */
95
96  exit(0);
97}
98