cls_align_double.c revision a89495f48f185779ff7d9d64ce6e6b037c9ded87 
1/* Area:	ffi_call, closure_call
2   Purpose:	Check structure alignment of double.
3   Limitations:	none.
4   PR:		none.
5   Originator:	<hos@tamanegi.org> 20031203	 */
6
7
8
9/* { dg-do run } */
10#include "ffitest.h"
11
12typedef struct cls_struct_align {
13  unsigned char a;
14  double b;
15  unsigned char c;
16} cls_struct_align;
17
18cls_struct_align cls_struct_align_fn(struct cls_struct_align a1,
19			    struct cls_struct_align a2)
20{
21  struct cls_struct_align 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 %g %d %d %g %d: %d %g %d\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c, result.a, result.b, result.c);
28
29  return  result;
30}
31
32static void
33cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
34		    void* userdata __UNUSED__)
35{
36
37  struct cls_struct_align a1, a2;
38
39  a1 = *(struct cls_struct_align*)(args[0]);
40  a2 = *(struct cls_struct_align*)(args[1]);
41
42  *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
43}
44
45int main (void)
46{
47  ffi_cif cif;
48#ifndef USING_MMAP
49  static ffi_closure cl;
50#endif
51  ffi_closure *pcl;
52  void* args_dbl[5];
53  ffi_type* cls_struct_fields[4];
54  ffi_type cls_struct_type;
55  ffi_type* dbl_arg_types[5];
56
57#ifdef USING_MMAP
58  pcl = allocate_mmap (sizeof(ffi_closure));
59#else
60  pcl = &cl;
61#endif
62
63  cls_struct_type.size = 0;
64  cls_struct_type.alignment = 0;
65  cls_struct_type.type = FFI_TYPE_STRUCT;
66  cls_struct_type.elements = cls_struct_fields;
67
68  struct cls_struct_align g_dbl = { 12, 4951, 127 };
69  struct cls_struct_align f_dbl = { 1, 9320, 13 };
70  struct cls_struct_align res_dbl;
71
72  cls_struct_fields[0] = &ffi_type_uchar;
73  cls_struct_fields[1] = &ffi_type_double;
74  cls_struct_fields[2] = &ffi_type_uchar;
75  cls_struct_fields[3] = NULL;
76
77  dbl_arg_types[0] = &cls_struct_type;
78  dbl_arg_types[1] = &cls_struct_type;
79  dbl_arg_types[2] = NULL;
80
81  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
82		     dbl_arg_types) == FFI_OK);
83
84  args_dbl[0] = &g_dbl;
85  args_dbl[1] = &f_dbl;
86  args_dbl[2] = NULL;
87
88  ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
89  /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
90  printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
91  /* { dg-output "\nres: 13 14271 140" } */
92
93  CHECK(ffi_prep_closure(pcl, &cif, cls_struct_align_gn, NULL) == FFI_OK);
94
95  res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(pcl))(g_dbl, f_dbl);
96  /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
97  printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
98  /* { dg-output "\nres: 13 14271 140" } */
99
100  exit(0);
101}
102