Python code coverage for Modules/_ctypes/libffi/testsuite/libffi.call/nested_struct10.c

#	count	content
1	n/a	/* Area: ffi_call, closure_call
2	n/a	Purpose: Check structure passing with different structure size.
3	n/a	Contains structs as parameter of the struct itself.
4	n/a	Sample taken from Alan Modras patch to src/prep_cif.c.
5	n/a	Limitations: none.
6	n/a	PR: none.
7	n/a	Originator: <andreast@gcc.gnu.org> 20051010 */
8	n/a
9	n/a	/* { dg-do run } */
10	n/a	#include "ffitest.h"
11	n/a
12	n/a	typedef struct A {
13	n/a	unsigned long long a;
14	n/a	unsigned char b;
15	n/a	} A;
16	n/a
17	n/a	typedef struct B {
18	n/a	unsigned char y;
19	n/a	struct A x;
20	n/a	unsigned int z;
21	n/a	} B;
22	n/a
23	n/a	typedef struct C {
24	n/a	unsigned long long d;
25	n/a	unsigned char e;
26	n/a	} C;
27	n/a
28	n/a	static B B_fn(struct A b2, struct B b3, struct C b4)
29	n/a	{
30	n/a	struct B result;
31	n/a
32	n/a	result.x.a = b2.a + b3.x.a + b3.z + b4.d;
33	n/a	result.x.b = b2.b + b3.x.b + b3.y + b4.e;
34	n/a	result.y = b2.b + b3.x.b + b4.e;
35	n/a
36	n/a	printf("%d %d %d %d %d %d %d %d: %d %d %d\n", (int)b2.a, b2.b,
37	n/a	(int)b3.x.a, b3.x.b, b3.y, b3.z, (int)b4.d, b4.e,
38	n/a	(int)result.x.a, result.x.b, result.y);
39	n/a
40	n/a	return result;
41	n/a	}
42	n/a
43	n/a	static void
44	n/a	B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
45	n/a	void* userdata __UNUSED__)
46	n/a	{
47	n/a	struct A b0;
48	n/a	struct B b1;
49	n/a	struct C b2;
50	n/a
51	n/a	b0 = (struct A)(args[0]);
52	n/a	b1 = (struct B)(args[1]);
53	n/a	b2 = (struct C)(args[2]);
54	n/a
55	n/a	(B)resp = B_fn(b0, b1, b2);
56	n/a	}
57	n/a
58	n/a	int main (void)
59	n/a	{
60	n/a	ffi_cif cif;
61	n/a	void *code;
62	n/a	ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
63	n/a	void* args_dbl[4];
64	n/a	ffi_type* cls_struct_fields[3];
65	n/a	ffi_type* cls_struct_fields1[4];
66	n/a	ffi_type* cls_struct_fields2[3];
67	n/a	ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
68	n/a	ffi_type* dbl_arg_types[4];
69	n/a
70	n/a	struct A e_dbl = { 1LL, 7};
71	n/a	struct B f_dbl = { 99, {12LL , 127}, 255};
72	n/a	struct C g_dbl = { 2LL, 9};
73	n/a
74	n/a	struct B res_dbl;
75	n/a
76	n/a	cls_struct_type.size = 0;
77	n/a	cls_struct_type.alignment = 0;
78	n/a	cls_struct_type.type = FFI_TYPE_STRUCT;
79	n/a	cls_struct_type.elements = cls_struct_fields;
80	n/a
81	n/a	cls_struct_type1.size = 0;
82	n/a	cls_struct_type1.alignment = 0;
83	n/a	cls_struct_type1.type = FFI_TYPE_STRUCT;
84	n/a	cls_struct_type1.elements = cls_struct_fields1;
85	n/a
86	n/a	cls_struct_type2.size = 0;
87	n/a	cls_struct_type2.alignment = 0;
88	n/a	cls_struct_type2.type = FFI_TYPE_STRUCT;
89	n/a	cls_struct_type2.elements = cls_struct_fields2;
90	n/a
91	n/a	cls_struct_fields[0] = &ffi_type_uint64;
92	n/a	cls_struct_fields[1] = &ffi_type_uchar;
93	n/a	cls_struct_fields[2] = NULL;
94	n/a
95	n/a	cls_struct_fields1[0] = &ffi_type_uchar;
96	n/a	cls_struct_fields1[1] = &cls_struct_type;
97	n/a	cls_struct_fields1[2] = &ffi_type_uint;
98	n/a	cls_struct_fields1[3] = NULL;
99	n/a
100	n/a	cls_struct_fields2[0] = &ffi_type_uint64;
101	n/a	cls_struct_fields2[1] = &ffi_type_uchar;
102	n/a	cls_struct_fields2[2] = NULL;
103	n/a
104	n/a
105	n/a	dbl_arg_types[0] = &cls_struct_type;
106	n/a	dbl_arg_types[1] = &cls_struct_type1;
107	n/a	dbl_arg_types[2] = &cls_struct_type2;
108	n/a	dbl_arg_types[3] = NULL;
109	n/a
110	n/a	CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type1,
111	n/a	dbl_arg_types) == FFI_OK);
112	n/a
113	n/a	args_dbl[0] = &e_dbl;
114	n/a	args_dbl[1] = &f_dbl;
115	n/a	args_dbl[2] = &g_dbl;
116	n/a	args_dbl[3] = NULL;
117	n/a
118	n/a	ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
119	n/a	/* { dg-output "1 7 12 127 99 255 2 9: 270 242 143" } */
120	n/a	CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + f_dbl.z + g_dbl.d));
121	n/a	CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
122	n/a	CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
123	n/a
124	n/a	CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
125	n/a
126	n/a	res_dbl = ((B(*)(A, B, C))(code))(e_dbl, f_dbl, g_dbl);
127	n/a	/* { dg-output "\n1 7 12 127 99 255 2 9: 270 242 143" } */
128	n/a	CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + f_dbl.z + g_dbl.d));
129	n/a	CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
130	n/a	CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
131	n/a
132	n/a	exit(0);
133	n/a	}