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 */
27 static B
B_fn(struct A b2
, struct B b3
, struct C b4
)
31 result
.x
.a
= b2
.a
+ b3
.x
.a
+ b4
.d
;
32 result
.x
.b
= b2
.b
+ b3
.x
.b
+ b3
.y
+ b4
.e
;
33 result
.y
= b2
.b
+ b3
.x
.b
+ b4
.e
;
35 printf("%d %d %d %d %d %d %d: %d %d %d\n", (int)b2
.a
, b2
.b
,
36 (int)b3
.x
.a
, b3
.x
.b
, b3
.y
, (int)b4
.d
, b4
.e
,
37 (int)result
.x
.a
, result
.x
.b
, result
.y
);
43 B_gn(ffi_cif
* cif __UNUSED__
, void* resp
, void** args
,
44 void* userdata __UNUSED__
)
50 b0
= *(struct A
*)(args
[0]);
51 b1
= *(struct B
*)(args
[1]);
52 b2
= *(struct C
*)(args
[2]);
54 *(B
*)resp
= B_fn(b0
, b1
, b2
);
61 ffi_closure
*pcl
= ffi_closure_alloc(sizeof(ffi_closure
), &code
);
63 ffi_type
* cls_struct_fields
[3];
64 ffi_type
* cls_struct_fields1
[3];
65 ffi_type
* cls_struct_fields2
[3];
66 ffi_type cls_struct_type
, cls_struct_type1
, cls_struct_type2
;
67 ffi_type
* dbl_arg_types
[4];
69 cls_struct_type
.size
= 0;
70 cls_struct_type
.alignment
= 0;
71 cls_struct_type
.type
= FFI_TYPE_STRUCT
;
72 cls_struct_type
.elements
= cls_struct_fields
;
74 cls_struct_type1
.size
= 0;
75 cls_struct_type1
.alignment
= 0;
76 cls_struct_type1
.type
= FFI_TYPE_STRUCT
;
77 cls_struct_type1
.elements
= cls_struct_fields1
;
79 cls_struct_type2
.size
= 0;
80 cls_struct_type2
.alignment
= 0;
81 cls_struct_type2
.type
= FFI_TYPE_STRUCT
;
82 cls_struct_type2
.elements
= cls_struct_fields2
;
84 struct A e_dbl
= { 1LL, 7};
85 struct B f_dbl
= {{12LL , 127}, 99};
86 struct C g_dbl
= { 2LL, 9};
90 cls_struct_fields
[0] = &ffi_type_uint64
;
91 cls_struct_fields
[1] = &ffi_type_uchar
;
92 cls_struct_fields
[2] = NULL
;
94 cls_struct_fields1
[0] = &cls_struct_type
;
95 cls_struct_fields1
[1] = &ffi_type_uchar
;
96 cls_struct_fields1
[2] = NULL
;
98 cls_struct_fields2
[0] = &ffi_type_uint64
;
99 cls_struct_fields2
[1] = &ffi_type_uchar
;
100 cls_struct_fields2
[2] = NULL
;
103 dbl_arg_types
[0] = &cls_struct_type
;
104 dbl_arg_types
[1] = &cls_struct_type1
;
105 dbl_arg_types
[2] = &cls_struct_type2
;
106 dbl_arg_types
[3] = NULL
;
108 CHECK(ffi_prep_cif(&cif
, FFI_DEFAULT_ABI
, 3, &cls_struct_type1
,
109 dbl_arg_types
) == FFI_OK
);
111 args_dbl
[0] = &e_dbl
;
112 args_dbl
[1] = &f_dbl
;
113 args_dbl
[2] = &g_dbl
;
116 ffi_call(&cif
, FFI_FN(B_fn
), &res_dbl
, args_dbl
);
117 /* { dg-output "1 7 12 127 99 2 9: 15 242 143" } */
118 CHECK( res_dbl
.x
.a
== (e_dbl
.a
+ f_dbl
.x
.a
+ g_dbl
.d
));
119 CHECK( res_dbl
.x
.b
== (e_dbl
.b
+ f_dbl
.x
.b
+ f_dbl
.y
+ g_dbl
.e
));
120 CHECK( res_dbl
.y
== (e_dbl
.b
+ f_dbl
.x
.b
+ g_dbl
.e
));
122 CHECK(ffi_prep_closure_loc(pcl
, &cif
, B_gn
, NULL
, code
) == FFI_OK
);
124 res_dbl
= ((B(*)(A
, B
, C
))(code
))(e_dbl
, f_dbl
, g_dbl
);
125 /* { dg-output "\n1 7 12 127 99 2 9: 15 242 143" } */
126 CHECK( res_dbl
.x
.a
== (e_dbl
.a
+ f_dbl
.x
.a
+ g_dbl
.d
));
127 CHECK( res_dbl
.x
.b
== (e_dbl
.b
+ f_dbl
.x
.b
+ f_dbl
.y
+ g_dbl
.e
));
128 CHECK( res_dbl
.y
== (e_dbl
.b
+ f_dbl
.x
.b
+ g_dbl
.e
));