1*1fd5a2e1SPrashanth Swaminathan /* Area: ffi_call, closure_call
2*1fd5a2e1SPrashanth Swaminathan Purpose: Check structure passing with different structure size.
3*1fd5a2e1SPrashanth Swaminathan Especially with small structures which may fit in one
4*1fd5a2e1SPrashanth Swaminathan register. Depending on the ABI.
5*1fd5a2e1SPrashanth Swaminathan Limitations: none.
6*1fd5a2e1SPrashanth Swaminathan PR: none.
7*1fd5a2e1SPrashanth Swaminathan Originator: <[email protected]> 20030828 */
8*1fd5a2e1SPrashanth Swaminathan
9*1fd5a2e1SPrashanth Swaminathan /* { dg-do run } */
10*1fd5a2e1SPrashanth Swaminathan #include "ffitest.h"
11*1fd5a2e1SPrashanth Swaminathan
12*1fd5a2e1SPrashanth Swaminathan typedef struct cls_struct_2byte {
13*1fd5a2e1SPrashanth Swaminathan unsigned char a;
14*1fd5a2e1SPrashanth Swaminathan unsigned char b;
15*1fd5a2e1SPrashanth Swaminathan } cls_struct_2byte;
16*1fd5a2e1SPrashanth Swaminathan
cls_struct_2byte_fn(struct cls_struct_2byte a1,struct cls_struct_2byte a2)17*1fd5a2e1SPrashanth Swaminathan cls_struct_2byte cls_struct_2byte_fn(struct cls_struct_2byte a1,
18*1fd5a2e1SPrashanth Swaminathan struct cls_struct_2byte a2)
19*1fd5a2e1SPrashanth Swaminathan {
20*1fd5a2e1SPrashanth Swaminathan struct cls_struct_2byte result;
21*1fd5a2e1SPrashanth Swaminathan
22*1fd5a2e1SPrashanth Swaminathan result.a = a1.a + a2.a;
23*1fd5a2e1SPrashanth Swaminathan result.b = a1.b + a2.b;
24*1fd5a2e1SPrashanth Swaminathan
25*1fd5a2e1SPrashanth Swaminathan printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
26*1fd5a2e1SPrashanth Swaminathan
27*1fd5a2e1SPrashanth Swaminathan return result;
28*1fd5a2e1SPrashanth Swaminathan }
29*1fd5a2e1SPrashanth Swaminathan
30*1fd5a2e1SPrashanth Swaminathan static void
cls_struct_2byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)31*1fd5a2e1SPrashanth Swaminathan cls_struct_2byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
32*1fd5a2e1SPrashanth Swaminathan void* userdata __UNUSED__)
33*1fd5a2e1SPrashanth Swaminathan {
34*1fd5a2e1SPrashanth Swaminathan
35*1fd5a2e1SPrashanth Swaminathan struct cls_struct_2byte a1, a2;
36*1fd5a2e1SPrashanth Swaminathan
37*1fd5a2e1SPrashanth Swaminathan a1 = *(struct cls_struct_2byte*)(args[0]);
38*1fd5a2e1SPrashanth Swaminathan a2 = *(struct cls_struct_2byte*)(args[1]);
39*1fd5a2e1SPrashanth Swaminathan
40*1fd5a2e1SPrashanth Swaminathan *(cls_struct_2byte*)resp = cls_struct_2byte_fn(a1, a2);
41*1fd5a2e1SPrashanth Swaminathan }
42*1fd5a2e1SPrashanth Swaminathan
main(void)43*1fd5a2e1SPrashanth Swaminathan int main (void)
44*1fd5a2e1SPrashanth Swaminathan {
45*1fd5a2e1SPrashanth Swaminathan ffi_cif cif;
46*1fd5a2e1SPrashanth Swaminathan void *code;
47*1fd5a2e1SPrashanth Swaminathan ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
48*1fd5a2e1SPrashanth Swaminathan void* args_dbl[5];
49*1fd5a2e1SPrashanth Swaminathan ffi_type* cls_struct_fields[4];
50*1fd5a2e1SPrashanth Swaminathan ffi_type cls_struct_type;
51*1fd5a2e1SPrashanth Swaminathan ffi_type* dbl_arg_types[5];
52*1fd5a2e1SPrashanth Swaminathan
53*1fd5a2e1SPrashanth Swaminathan struct cls_struct_2byte g_dbl = { 12, 127 };
54*1fd5a2e1SPrashanth Swaminathan struct cls_struct_2byte f_dbl = { 1, 13 };
55*1fd5a2e1SPrashanth Swaminathan struct cls_struct_2byte res_dbl;
56*1fd5a2e1SPrashanth Swaminathan
57*1fd5a2e1SPrashanth Swaminathan cls_struct_type.size = 0;
58*1fd5a2e1SPrashanth Swaminathan cls_struct_type.alignment = 0;
59*1fd5a2e1SPrashanth Swaminathan cls_struct_type.type = FFI_TYPE_STRUCT;
60*1fd5a2e1SPrashanth Swaminathan cls_struct_type.elements = cls_struct_fields;
61*1fd5a2e1SPrashanth Swaminathan
62*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[0] = &ffi_type_uchar;
63*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[1] = &ffi_type_uchar;
64*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[2] = NULL;
65*1fd5a2e1SPrashanth Swaminathan
66*1fd5a2e1SPrashanth Swaminathan dbl_arg_types[0] = &cls_struct_type;
67*1fd5a2e1SPrashanth Swaminathan dbl_arg_types[1] = &cls_struct_type;
68*1fd5a2e1SPrashanth Swaminathan dbl_arg_types[2] = NULL;
69*1fd5a2e1SPrashanth Swaminathan
70*1fd5a2e1SPrashanth Swaminathan CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
71*1fd5a2e1SPrashanth Swaminathan dbl_arg_types) == FFI_OK);
72*1fd5a2e1SPrashanth Swaminathan
73*1fd5a2e1SPrashanth Swaminathan args_dbl[0] = &g_dbl;
74*1fd5a2e1SPrashanth Swaminathan args_dbl[1] = &f_dbl;
75*1fd5a2e1SPrashanth Swaminathan args_dbl[2] = NULL;
76*1fd5a2e1SPrashanth Swaminathan
77*1fd5a2e1SPrashanth Swaminathan ffi_call(&cif, FFI_FN(cls_struct_2byte_fn), &res_dbl, args_dbl);
78*1fd5a2e1SPrashanth Swaminathan /* { dg-output "12 127 1 13: 13 140" } */
79*1fd5a2e1SPrashanth Swaminathan printf("res: %d %d\n", res_dbl.a, res_dbl.b);
80*1fd5a2e1SPrashanth Swaminathan /* { dg-output "\nres: 13 140" } */
81*1fd5a2e1SPrashanth Swaminathan
82*1fd5a2e1SPrashanth Swaminathan CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_2byte_gn, NULL, code) == FFI_OK);
83*1fd5a2e1SPrashanth Swaminathan
84*1fd5a2e1SPrashanth Swaminathan res_dbl = ((cls_struct_2byte(*)(cls_struct_2byte, cls_struct_2byte))(code))(g_dbl, f_dbl);
85*1fd5a2e1SPrashanth Swaminathan /* { dg-output "\n12 127 1 13: 13 140" } */
86*1fd5a2e1SPrashanth Swaminathan printf("res: %d %d\n", res_dbl.a, res_dbl.b);
87*1fd5a2e1SPrashanth Swaminathan /* { dg-output "\nres: 13 140" } */
88*1fd5a2e1SPrashanth Swaminathan
89*1fd5a2e1SPrashanth Swaminathan exit(0);
90*1fd5a2e1SPrashanth Swaminathan }
91