1 /* Area: ffi_call, closure_call
2 Purpose: Check structure passing with different structure size.
3 Depending on the ABI. Check overlapping.
4 Limitations: none.
5 PR: none.
6 Originator: <andreast@gcc.gnu.org> 20030828 */
7
8
9
10 /* { dg-do run } */
11 #include "ffitest.h"
12
13 typedef struct cls_struct_20byte {
14 int a;
15 double b;
16 double c;
17 } cls_struct_20byte;
18
cls_struct_20byte_fn(struct cls_struct_20byte a1,struct cls_struct_20byte a2)19 cls_struct_20byte cls_struct_20byte_fn(struct cls_struct_20byte a1,
20 struct cls_struct_20byte a2)
21 {
22 struct cls_struct_20byte result;
23
24 result.a = a1.a + a2.a;
25 result.b = a1.b + a2.b;
26 result.c = a1.c + a2.c;
27
28 printf("%d %g %g %d %g %g: %d %g %g\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c,
29 result.a, result.b, result.c);
30 return result;
31 }
32
33 static void
cls_struct_20byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)34 cls_struct_20byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
35 void* userdata __UNUSED__)
36 {
37 struct cls_struct_20byte a1, a2;
38
39 a1 = *(struct cls_struct_20byte*)(args[0]);
40 a2 = *(struct cls_struct_20byte*)(args[1]);
41
42 *(cls_struct_20byte*)resp = cls_struct_20byte_fn(a1, a2);
43 }
44
main(void)45 int 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[3];
53 ffi_type* cls_struct_fields[4];
54 ffi_type cls_struct_type;
55 ffi_type* dbl_arg_types[3];
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_20byte g_dbl = { 1, 2.0, 3.0 };
69 struct cls_struct_20byte f_dbl = { 4, 5.0, 7.0 };
70 struct cls_struct_20byte res_dbl;
71
72 cls_struct_fields[0] = &ffi_type_sint;
73 cls_struct_fields[1] = &ffi_type_double;
74 cls_struct_fields[2] = &ffi_type_double;
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_20byte_fn), &res_dbl, args_dbl);
89 /* { dg-output "1 2 3 4 5 7: 5 7 10" } */
90 printf("res: %d %g %g\n", res_dbl.a, res_dbl.b, res_dbl.c);
91 /* { dg-output "\nres: 5 7 10" } */
92
93 CHECK(ffi_prep_closure(pcl, &cif, cls_struct_20byte_gn, NULL) == FFI_OK);
94
95 res_dbl = ((cls_struct_20byte(*)(cls_struct_20byte, cls_struct_20byte))(pcl))(g_dbl, f_dbl);
96 /* { dg-output "\n1 2 3 4 5 7: 5 7 10" } */
97 printf("res: %d %g %g\n", res_dbl.a, res_dbl.b, res_dbl.c);
98 /* { dg-output "\nres: 5 7 10" } */
99
100 exit(0);
101 }
102