xref: /aosp_15_r20/external/libffi/testsuite/libffi.call/nested_struct8.c (revision 1fd5a2e1d639cd1ddf29dd0c484c123bbd850c21)
1*1fd5a2e1SPrashanth Swaminathan /* Area:	ffi_call, closure_call
2*1fd5a2e1SPrashanth Swaminathan    Purpose:	Check structure passing with different structure size.
3*1fd5a2e1SPrashanth Swaminathan 		Contains structs as parameter of the struct itself.
4*1fd5a2e1SPrashanth Swaminathan 		Sample taken from Alan Modras patch to src/prep_cif.c.
5*1fd5a2e1SPrashanth Swaminathan    Limitations:	none.
6*1fd5a2e1SPrashanth Swaminathan    PR:		none.
7*1fd5a2e1SPrashanth Swaminathan    Originator:	<[email protected]> 20051010	 */
8*1fd5a2e1SPrashanth Swaminathan 
9*1fd5a2e1SPrashanth Swaminathan /* { dg-do run } */
10*1fd5a2e1SPrashanth Swaminathan #include "ffitest.h"
11*1fd5a2e1SPrashanth Swaminathan 
12*1fd5a2e1SPrashanth Swaminathan typedef struct A {
13*1fd5a2e1SPrashanth Swaminathan   unsigned long long a;
14*1fd5a2e1SPrashanth Swaminathan   unsigned char b;
15*1fd5a2e1SPrashanth Swaminathan } A;
16*1fd5a2e1SPrashanth Swaminathan 
17*1fd5a2e1SPrashanth Swaminathan typedef struct B {
18*1fd5a2e1SPrashanth Swaminathan   struct A x;
19*1fd5a2e1SPrashanth Swaminathan   unsigned char y;
20*1fd5a2e1SPrashanth Swaminathan } B;
21*1fd5a2e1SPrashanth Swaminathan 
22*1fd5a2e1SPrashanth Swaminathan typedef struct C {
23*1fd5a2e1SPrashanth Swaminathan   unsigned long long d;
24*1fd5a2e1SPrashanth Swaminathan   unsigned char e;
25*1fd5a2e1SPrashanth Swaminathan } C;
26*1fd5a2e1SPrashanth Swaminathan 
B_fn(struct A b2,struct B b3,struct C b4)27*1fd5a2e1SPrashanth Swaminathan static B B_fn(struct A b2, struct B b3, struct C b4)
28*1fd5a2e1SPrashanth Swaminathan {
29*1fd5a2e1SPrashanth Swaminathan   struct B result;
30*1fd5a2e1SPrashanth Swaminathan 
31*1fd5a2e1SPrashanth Swaminathan   result.x.a = b2.a + b3.x.a + b4.d;
32*1fd5a2e1SPrashanth Swaminathan   result.x.b = b2.b + b3.x.b + b3.y + b4.e;
33*1fd5a2e1SPrashanth Swaminathan   result.y = b2.b + b3.x.b + b4.e;
34*1fd5a2e1SPrashanth Swaminathan 
35*1fd5a2e1SPrashanth Swaminathan   printf("%d %d %d %d %d %d %d: %d %d %d\n", (int)b2.a, b2.b,
36*1fd5a2e1SPrashanth Swaminathan 	 (int)b3.x.a, b3.x.b, b3.y, (int)b4.d, b4.e,
37*1fd5a2e1SPrashanth Swaminathan 	 (int)result.x.a, result.x.b, result.y);
38*1fd5a2e1SPrashanth Swaminathan 
39*1fd5a2e1SPrashanth Swaminathan   return result;
40*1fd5a2e1SPrashanth Swaminathan }
41*1fd5a2e1SPrashanth Swaminathan 
42*1fd5a2e1SPrashanth Swaminathan static void
B_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)43*1fd5a2e1SPrashanth Swaminathan B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
44*1fd5a2e1SPrashanth Swaminathan      void* userdata __UNUSED__)
45*1fd5a2e1SPrashanth Swaminathan {
46*1fd5a2e1SPrashanth Swaminathan   struct A b0;
47*1fd5a2e1SPrashanth Swaminathan   struct B b1;
48*1fd5a2e1SPrashanth Swaminathan   struct C b2;
49*1fd5a2e1SPrashanth Swaminathan 
50*1fd5a2e1SPrashanth Swaminathan   b0 = *(struct A*)(args[0]);
51*1fd5a2e1SPrashanth Swaminathan   b1 = *(struct B*)(args[1]);
52*1fd5a2e1SPrashanth Swaminathan   b2 = *(struct C*)(args[2]);
53*1fd5a2e1SPrashanth Swaminathan 
54*1fd5a2e1SPrashanth Swaminathan   *(B*)resp = B_fn(b0, b1, b2);
55*1fd5a2e1SPrashanth Swaminathan }
56*1fd5a2e1SPrashanth Swaminathan 
main(void)57*1fd5a2e1SPrashanth Swaminathan int main (void)
58*1fd5a2e1SPrashanth Swaminathan {
59*1fd5a2e1SPrashanth Swaminathan   ffi_cif cif;
60*1fd5a2e1SPrashanth Swaminathan   void *code;
61*1fd5a2e1SPrashanth Swaminathan   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
62*1fd5a2e1SPrashanth Swaminathan   void* args_dbl[4];
63*1fd5a2e1SPrashanth Swaminathan   ffi_type* cls_struct_fields[3];
64*1fd5a2e1SPrashanth Swaminathan   ffi_type* cls_struct_fields1[3];
65*1fd5a2e1SPrashanth Swaminathan   ffi_type* cls_struct_fields2[3];
66*1fd5a2e1SPrashanth Swaminathan   ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
67*1fd5a2e1SPrashanth Swaminathan   ffi_type* dbl_arg_types[4];
68*1fd5a2e1SPrashanth Swaminathan 
69*1fd5a2e1SPrashanth Swaminathan   struct A e_dbl = { 1LL, 7};
70*1fd5a2e1SPrashanth Swaminathan   struct B f_dbl = {{12LL , 127}, 99};
71*1fd5a2e1SPrashanth Swaminathan   struct C g_dbl = { 2LL, 9};
72*1fd5a2e1SPrashanth Swaminathan 
73*1fd5a2e1SPrashanth Swaminathan   struct B res_dbl;
74*1fd5a2e1SPrashanth Swaminathan 
75*1fd5a2e1SPrashanth Swaminathan   cls_struct_type.size = 0;
76*1fd5a2e1SPrashanth Swaminathan   cls_struct_type.alignment = 0;
77*1fd5a2e1SPrashanth Swaminathan   cls_struct_type.type = FFI_TYPE_STRUCT;
78*1fd5a2e1SPrashanth Swaminathan   cls_struct_type.elements = cls_struct_fields;
79*1fd5a2e1SPrashanth Swaminathan 
80*1fd5a2e1SPrashanth Swaminathan   cls_struct_type1.size = 0;
81*1fd5a2e1SPrashanth Swaminathan   cls_struct_type1.alignment = 0;
82*1fd5a2e1SPrashanth Swaminathan   cls_struct_type1.type = FFI_TYPE_STRUCT;
83*1fd5a2e1SPrashanth Swaminathan   cls_struct_type1.elements = cls_struct_fields1;
84*1fd5a2e1SPrashanth Swaminathan 
85*1fd5a2e1SPrashanth Swaminathan   cls_struct_type2.size = 0;
86*1fd5a2e1SPrashanth Swaminathan   cls_struct_type2.alignment = 0;
87*1fd5a2e1SPrashanth Swaminathan   cls_struct_type2.type = FFI_TYPE_STRUCT;
88*1fd5a2e1SPrashanth Swaminathan   cls_struct_type2.elements = cls_struct_fields2;
89*1fd5a2e1SPrashanth Swaminathan 
90*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields[0] = &ffi_type_uint64;
91*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields[1] = &ffi_type_uchar;
92*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields[2] = NULL;
93*1fd5a2e1SPrashanth Swaminathan 
94*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields1[0] = &cls_struct_type;
95*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields1[1] = &ffi_type_uchar;
96*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields1[2] = NULL;
97*1fd5a2e1SPrashanth Swaminathan 
98*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields2[0] = &ffi_type_uint64;
99*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields2[1] = &ffi_type_uchar;
100*1fd5a2e1SPrashanth Swaminathan   cls_struct_fields2[2] = NULL;
101*1fd5a2e1SPrashanth Swaminathan 
102*1fd5a2e1SPrashanth Swaminathan 
103*1fd5a2e1SPrashanth Swaminathan   dbl_arg_types[0] = &cls_struct_type;
104*1fd5a2e1SPrashanth Swaminathan   dbl_arg_types[1] = &cls_struct_type1;
105*1fd5a2e1SPrashanth Swaminathan   dbl_arg_types[2] = &cls_struct_type2;
106*1fd5a2e1SPrashanth Swaminathan   dbl_arg_types[3] = NULL;
107*1fd5a2e1SPrashanth Swaminathan 
108*1fd5a2e1SPrashanth Swaminathan   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type1,
109*1fd5a2e1SPrashanth Swaminathan 		     dbl_arg_types) == FFI_OK);
110*1fd5a2e1SPrashanth Swaminathan 
111*1fd5a2e1SPrashanth Swaminathan   args_dbl[0] = &e_dbl;
112*1fd5a2e1SPrashanth Swaminathan   args_dbl[1] = &f_dbl;
113*1fd5a2e1SPrashanth Swaminathan   args_dbl[2] = &g_dbl;
114*1fd5a2e1SPrashanth Swaminathan   args_dbl[3] = NULL;
115*1fd5a2e1SPrashanth Swaminathan 
116*1fd5a2e1SPrashanth Swaminathan   ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
117*1fd5a2e1SPrashanth Swaminathan   /* { dg-output "1 7 12 127 99 2 9: 15 242 143" } */
118*1fd5a2e1SPrashanth Swaminathan   CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + g_dbl.d));
119*1fd5a2e1SPrashanth Swaminathan   CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
120*1fd5a2e1SPrashanth Swaminathan   CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
121*1fd5a2e1SPrashanth Swaminathan 
122*1fd5a2e1SPrashanth Swaminathan   CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
123*1fd5a2e1SPrashanth Swaminathan 
124*1fd5a2e1SPrashanth Swaminathan   res_dbl = ((B(*)(A, B, C))(code))(e_dbl, f_dbl, g_dbl);
125*1fd5a2e1SPrashanth Swaminathan   /* { dg-output "\n1 7 12 127 99 2 9: 15 242 143" } */
126*1fd5a2e1SPrashanth Swaminathan   CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + g_dbl.d));
127*1fd5a2e1SPrashanth Swaminathan   CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
128*1fd5a2e1SPrashanth Swaminathan   CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
129*1fd5a2e1SPrashanth Swaminathan 
130*1fd5a2e1SPrashanth Swaminathan   exit(0);
131*1fd5a2e1SPrashanth Swaminathan }
132