1/* Area:		ffi_call
2   Purpose:		Test passing struct in variable argument lists.
3   Limitations:	none.
4   PR:			none.
5   Originator:	ARM Ltd. */
6
7/* { dg-do run } */
8/* { dg-output "" { xfail avr32*-*-* } } */
9
10#include "ffitest.h"
11#include <stdarg.h>
12
13struct small_tag
14{
15  unsigned char a;
16  unsigned char b;
17};
18
19struct large_tag
20{
21  unsigned a;
22  unsigned b;
23  unsigned c;
24  unsigned d;
25  unsigned e;
26};
27
28static struct large_tag
29test_fn (int n, ...)
30{
31  va_list ap;
32  struct small_tag s1;
33  struct small_tag s2;
34  struct large_tag l;
35
36  va_start (ap, n);
37  s1 = va_arg (ap, struct small_tag);
38  l = va_arg (ap, struct large_tag);
39  s2 = va_arg (ap, struct small_tag);
40  printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
41	  s2.a, s2.b);
42  va_end (ap);
43  l.a += s1.a;
44  l.b += s1.b;
45  l.c += s2.a;
46  l.d += s2.b;
47  return l;
48}
49
50int
51main (void)
52{
53  ffi_cif cif;
54  void* args[5];
55  ffi_type* arg_types[5];
56
57  ffi_type s_type;
58  ffi_type *s_type_elements[3];
59
60  ffi_type l_type;
61  ffi_type *l_type_elements[6];
62
63  struct small_tag s1;
64  struct small_tag s2;
65  struct large_tag l1;
66
67  int n;
68  struct large_tag res;
69
70  s_type.size = 0;
71  s_type.alignment = 0;
72  s_type.type = FFI_TYPE_STRUCT;
73  s_type.elements = s_type_elements;
74
75  s_type_elements[0] = &ffi_type_uchar;
76  s_type_elements[1] = &ffi_type_uchar;
77  s_type_elements[2] = NULL;
78
79  l_type.size = 0;
80  l_type.alignment = 0;
81  l_type.type = FFI_TYPE_STRUCT;
82  l_type.elements = l_type_elements;
83
84  l_type_elements[0] = &ffi_type_uint;
85  l_type_elements[1] = &ffi_type_uint;
86  l_type_elements[2] = &ffi_type_uint;
87  l_type_elements[3] = &ffi_type_uint;
88  l_type_elements[4] = &ffi_type_uint;
89  l_type_elements[5] = NULL;
90
91  arg_types[0] = &ffi_type_sint;
92  arg_types[1] = &s_type;
93  arg_types[2] = &l_type;
94  arg_types[3] = &s_type;
95  arg_types[4] = NULL;
96
97  CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &l_type, arg_types) == FFI_OK);
98
99  s1.a = 5;
100  s1.b = 6;
101
102  l1.a = 10;
103  l1.b = 11;
104  l1.c = 12;
105  l1.d = 13;
106  l1.e = 14;
107
108  s2.a = 7;
109  s2.b = 8;
110
111  n = 41;
112
113  args[0] = &n;
114  args[1] = &s1;
115  args[2] = &l1;
116  args[3] = &s2;
117  args[4] = NULL;
118
119  ffi_call(&cif, FFI_FN(test_fn), &res, args);
120  /* { dg-output "5 6 10 11 12 13 14 7 8" } */
121  printf("res: %d %d %d %d %d\n", res.a, res.b, res.c, res.d, res.e);
122  /* { dg-output "\nres: 15 17 19 21 14" } */
123
124  return 0;
125}
126