ยปCore Development>Code coverage>Modules/_ctypes/libffi/testsuite/libffi.call/nested_struct2.c

Python code coverage for Modules/_ctypes/libffi/testsuite/libffi.call/nested_struct2.c

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1n/a/* Area: ffi_call, closure_call
2n/a Purpose: Check structure passing with different structure size.
3n/a Contains structs as parameter of the struct itself.
4n/a Sample taken from Alan Modras patch to src/prep_cif.c.
5n/a Limitations: none.
6n/a PR: none.
7n/a Originator: <andreast@gcc.gnu.org> 20030911 */
8n/a
9n/a/* { dg-do run } */
10n/a#include "ffitest.h"
11n/a
12n/atypedef struct A {
13n/a unsigned long a;
14n/a unsigned char b;
15n/a} A;
16n/a
17n/atypedef struct B {
18n/a struct A x;
19n/a unsigned char y;
20n/a} B;
21n/a
22n/aB B_fn(struct A b0, struct B b1)
23n/a{
24n/a struct B result;
25n/a
26n/a result.x.a = b0.a + b1.x.a;
27n/a result.x.b = b0.b + b1.x.b + b1.y;
28n/a result.y = b0.b + b1.x.b;
29n/a
30n/a printf("%lu %d %lu %d %d: %lu %d %d\n", b0.a, b0.b, b1.x.a, b1.x.b, b1.y,
31n/a result.x.a, result.x.b, result.y);
32n/a
33n/a return result;
34n/a}
35n/a
36n/astatic void
37n/aB_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38n/a void* userdata __UNUSED__)
39n/a{
40n/a struct A b0;
41n/a struct B b1;
42n/a
43n/a b0 = *(struct A*)(args[0]);
44n/a b1 = *(struct B*)(args[1]);
45n/a
46n/a *(B*)resp = B_fn(b0, b1);
47n/a}
48n/a
49n/aint main (void)
50n/a{
51n/a ffi_cif cif;
52n/a void *code;
53n/a ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
54n/a void* args_dbl[3];
55n/a ffi_type* cls_struct_fields[3];
56n/a ffi_type* cls_struct_fields1[3];
57n/a ffi_type cls_struct_type, cls_struct_type1;
58n/a ffi_type* dbl_arg_types[3];
59n/a
60n/a struct A e_dbl = { 1, 7};
61n/a struct B f_dbl = {{12 , 127}, 99};
62n/a
63n/a struct B res_dbl;
64n/a
65n/a cls_struct_type.size = 0;
66n/a cls_struct_type.alignment = 0;
67n/a cls_struct_type.type = FFI_TYPE_STRUCT;
68n/a cls_struct_type.elements = cls_struct_fields;
69n/a
70n/a cls_struct_type1.size = 0;
71n/a cls_struct_type1.alignment = 0;
72n/a cls_struct_type1.type = FFI_TYPE_STRUCT;
73n/a cls_struct_type1.elements = cls_struct_fields1;
74n/a
75n/a cls_struct_fields[0] = &ffi_type_ulong;
76n/a cls_struct_fields[1] = &ffi_type_uchar;
77n/a cls_struct_fields[2] = NULL;
78n/a
79n/a cls_struct_fields1[0] = &cls_struct_type;
80n/a cls_struct_fields1[1] = &ffi_type_uchar;
81n/a cls_struct_fields1[2] = NULL;
82n/a
83n/a
84n/a dbl_arg_types[0] = &cls_struct_type;
85n/a dbl_arg_types[1] = &cls_struct_type1;
86n/a dbl_arg_types[2] = NULL;
87n/a
88n/a CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type1,
89n/a dbl_arg_types) == FFI_OK);
90n/a
91n/a args_dbl[0] = &e_dbl;
92n/a args_dbl[1] = &f_dbl;
93n/a args_dbl[2] = NULL;
94n/a
95n/a ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
96n/a /* { dg-output "1 7 12 127 99: 13 233 134" } */
97n/a CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
98n/a CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
99n/a CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
100n/a
101n/a CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
102n/a
103n/a res_dbl = ((B(*)(A, B))(code))(e_dbl, f_dbl);
104n/a /* { dg-output "\n1 7 12 127 99: 13 233 134" } */
105n/a CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
106n/a CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
107n/a CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
108n/a
109n/a exit(0);
110n/a}