1 /* Area: ffi_call, closure_call
2 Purpose: Check structure passing with different structure size.
3 Contains structs as parameter of the struct itself.
4 Sample taken from Alan Modras patch to src/prep_cif.c.
7 Originator: <andreast@gcc.gnu.org> 20051010 */
22 static B B_fn(struct A b2, struct B b3)
26 result.x.a = b2.a + b3.x.a;
27 result.x.b = b2.b + b3.x.b + b3.y;
28 result.y = b2.b + b3.x.b;
30 printf("%d %d %d %d %d: %d %d %d\n", (int)b2.a, b2.b,
31 (int)b3.x.a, b3.x.b, b3.y,
32 (int)result.x.a, result.x.b, result.y);
38 B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
39 void* userdata __UNUSED__)
44 b0 = *(struct A*)(args[0]);
45 b1 = *(struct B*)(args[1]);
47 *(B*)resp = B_fn(b0, b1);
54 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
56 ffi_type* cls_struct_fields[3];
57 ffi_type* cls_struct_fields1[3];
58 ffi_type cls_struct_type, cls_struct_type1;
59 ffi_type* dbl_arg_types[3];
61 cls_struct_type.size = 0;
62 cls_struct_type.alignment = 0;
63 cls_struct_type.type = FFI_TYPE_STRUCT;
64 cls_struct_type.elements = cls_struct_fields;
66 cls_struct_type1.size = 0;
67 cls_struct_type1.alignment = 0;
68 cls_struct_type1.type = FFI_TYPE_STRUCT;
69 cls_struct_type1.elements = cls_struct_fields1;
71 struct A e_dbl = { 1LL, 7};
72 struct B f_dbl = {{12.0 , 127}, 99};
76 cls_struct_fields[0] = &ffi_type_uint64;
77 cls_struct_fields[1] = &ffi_type_uchar;
78 cls_struct_fields[2] = NULL;
80 cls_struct_fields1[0] = &cls_struct_type;
81 cls_struct_fields1[1] = &ffi_type_uchar;
82 cls_struct_fields1[2] = NULL;
85 dbl_arg_types[0] = &cls_struct_type;
86 dbl_arg_types[1] = &cls_struct_type1;
87 dbl_arg_types[2] = NULL;
89 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type1,
90 dbl_arg_types) == FFI_OK);
96 ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
97 /* { dg-output "1 7 12 127 99: 13 233 134" } */
98 CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
99 CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
100 CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
102 CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
104 res_dbl = ((B(*)(A, B))(code))(e_dbl, f_dbl);
105 /* { dg-output "\n1 7 12 127 99: 13 233 134" } */
106 CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
107 CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
108 CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));