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_3_1byte {
13  unsigned char a;
14  unsigned char b;
15  unsigned char c;
16} cls_struct_3_1byte;
17
18cls_struct_3_1byte cls_struct_3_1byte_fn(struct cls_struct_3_1byte a1,
19			    struct cls_struct_3_1byte a2)
20{
21  struct cls_struct_3_1byte result;
22
23  result.a = a1.a + a2.a;
24  result.b = a1.b + a2.b;
25  result.c = a1.c + a2.c;
26
27  printf("%d %d %d %d %d %d: %d %d %d\n", a1.a, a1.b, a1.c,
28	 a2.a, a2.b, a2.c,
29	 result.a, result.b, result.c);
30
31  return  result;
32}
33
34static void
35cls_struct_3_1byte_gn(ffi_cif* cif, void* resp, void** args, void* userdata)
36{
37
38  struct cls_struct_3_1byte a1, a2;
39
40  a1 = *(struct cls_struct_3_1byte*)(args[0]);
41  a2 = *(struct cls_struct_3_1byte*)(args[1]);
42
43  *(cls_struct_3_1byte*)resp = cls_struct_3_1byte_fn(a1, a2);
44}
45
46int main (void)
47{
48  ffi_cif cif;
49#ifndef USING_MMAP
50  static ffi_closure cl;
51#endif
52  ffi_closure *pcl;
53  void* args_dbl[5];
54  ffi_type* cls_struct_fields[4];
55  ffi_type cls_struct_type;
56  ffi_type* dbl_arg_types[5];
57
58#ifdef USING_MMAP
59  pcl = allocate_mmap (sizeof(ffi_closure));
60#else
61  pcl = &cl;
62#endif
63
64  cls_struct_type.size = 0;
65  cls_struct_type.alignment = 0;
66  cls_struct_type.type = FFI_TYPE_STRUCT;
67  cls_struct_type.elements = cls_struct_fields;
68
69  struct cls_struct_3_1byte g_dbl = { 12, 13, 14 };
70  struct cls_struct_3_1byte f_dbl = { 178, 179, 180 };
71  struct cls_struct_3_1byte res_dbl;
72
73  cls_struct_fields[0] = &ffi_type_uchar;
74  cls_struct_fields[1] = &ffi_type_uchar;
75  cls_struct_fields[2] = &ffi_type_uchar;
76  cls_struct_fields[3] = NULL;
77
78  dbl_arg_types[0] = &cls_struct_type;
79  dbl_arg_types[1] = &cls_struct_type;
80  dbl_arg_types[2] = NULL;
81
82  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
83		     dbl_arg_types) == FFI_OK);
84
85  args_dbl[0] = &g_dbl;
86  args_dbl[1] = &f_dbl;
87  args_dbl[2] = NULL;
88
89  ffi_call(&cif, FFI_FN(cls_struct_3_1byte_fn), &res_dbl, args_dbl);
90  /* { dg-output "12 13 14 178 179 180: 190 192 194" } */
91  printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
92  /* { dg-output "\nres: 190 192 194" } */
93
94  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_3_1byte_gn, NULL) == FFI_OK);
95
96  res_dbl = ((cls_struct_3_1byte(*)(cls_struct_3_1byte, cls_struct_3_1byte))(pcl))(g_dbl, f_dbl);
97  /* { dg-output "\n12 13 14 178 179 180: 190 192 194" } */
98  printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
99  /* { dg-output "\nres: 190 192 194" } */
100
101  exit(0);
102}
103