1*1fd5a2e1SPrashanth Swaminathan /* Area: ffi_call, closure_call
2*1fd5a2e1SPrashanth Swaminathan Purpose: Check structure alignment of pointer.
3*1fd5a2e1SPrashanth Swaminathan Limitations: none.
4*1fd5a2e1SPrashanth Swaminathan PR: none.
5*1fd5a2e1SPrashanth Swaminathan Originator: <[email protected]> 20031203 */
6*1fd5a2e1SPrashanth Swaminathan
7*1fd5a2e1SPrashanth Swaminathan /* { dg-do run } */
8*1fd5a2e1SPrashanth Swaminathan #include "ffitest.h"
9*1fd5a2e1SPrashanth Swaminathan
10*1fd5a2e1SPrashanth Swaminathan typedef struct cls_struct_align {
11*1fd5a2e1SPrashanth Swaminathan unsigned char a;
12*1fd5a2e1SPrashanth Swaminathan void *b;
13*1fd5a2e1SPrashanth Swaminathan unsigned char c;
14*1fd5a2e1SPrashanth Swaminathan } cls_struct_align;
15*1fd5a2e1SPrashanth Swaminathan
cls_struct_align_fn(struct cls_struct_align a1,struct cls_struct_align a2)16*1fd5a2e1SPrashanth Swaminathan cls_struct_align cls_struct_align_fn(struct cls_struct_align a1,
17*1fd5a2e1SPrashanth Swaminathan struct cls_struct_align a2)
18*1fd5a2e1SPrashanth Swaminathan {
19*1fd5a2e1SPrashanth Swaminathan struct cls_struct_align result;
20*1fd5a2e1SPrashanth Swaminathan
21*1fd5a2e1SPrashanth Swaminathan result.a = a1.a + a2.a;
22*1fd5a2e1SPrashanth Swaminathan result.b = (void *)((uintptr_t)a1.b + (uintptr_t)a2.b);
23*1fd5a2e1SPrashanth Swaminathan result.c = a1.c + a2.c;
24*1fd5a2e1SPrashanth Swaminathan
25*1fd5a2e1SPrashanth Swaminathan printf("%d %" PRIuPTR " %d %d %" PRIuPTR " %d: %d %" PRIuPTR " %d\n",
26*1fd5a2e1SPrashanth Swaminathan a1.a, (uintptr_t)a1.b, a1.c,
27*1fd5a2e1SPrashanth Swaminathan a2.a, (uintptr_t)a2.b, a2.c,
28*1fd5a2e1SPrashanth Swaminathan result.a, (uintptr_t)result.b,
29*1fd5a2e1SPrashanth Swaminathan result.c);
30*1fd5a2e1SPrashanth Swaminathan
31*1fd5a2e1SPrashanth Swaminathan return result;
32*1fd5a2e1SPrashanth Swaminathan }
33*1fd5a2e1SPrashanth Swaminathan
34*1fd5a2e1SPrashanth Swaminathan static void
cls_struct_align_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)35*1fd5a2e1SPrashanth Swaminathan cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
36*1fd5a2e1SPrashanth Swaminathan void* userdata __UNUSED__)
37*1fd5a2e1SPrashanth Swaminathan {
38*1fd5a2e1SPrashanth Swaminathan
39*1fd5a2e1SPrashanth Swaminathan struct cls_struct_align a1, a2;
40*1fd5a2e1SPrashanth Swaminathan
41*1fd5a2e1SPrashanth Swaminathan a1 = *(struct cls_struct_align*)(args[0]);
42*1fd5a2e1SPrashanth Swaminathan a2 = *(struct cls_struct_align*)(args[1]);
43*1fd5a2e1SPrashanth Swaminathan
44*1fd5a2e1SPrashanth Swaminathan *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
45*1fd5a2e1SPrashanth Swaminathan }
46*1fd5a2e1SPrashanth Swaminathan
main(void)47*1fd5a2e1SPrashanth Swaminathan int main (void)
48*1fd5a2e1SPrashanth Swaminathan {
49*1fd5a2e1SPrashanth Swaminathan ffi_cif cif;
50*1fd5a2e1SPrashanth Swaminathan void *code;
51*1fd5a2e1SPrashanth Swaminathan ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
52*1fd5a2e1SPrashanth Swaminathan void* args_dbl[5];
53*1fd5a2e1SPrashanth Swaminathan ffi_type* cls_struct_fields[4];
54*1fd5a2e1SPrashanth Swaminathan ffi_type cls_struct_type;
55*1fd5a2e1SPrashanth Swaminathan ffi_type* dbl_arg_types[5];
56*1fd5a2e1SPrashanth Swaminathan
57*1fd5a2e1SPrashanth Swaminathan struct cls_struct_align g_dbl = { 12, (void *)4951, 127 };
58*1fd5a2e1SPrashanth Swaminathan struct cls_struct_align f_dbl = { 1, (void *)9320, 13 };
59*1fd5a2e1SPrashanth Swaminathan struct cls_struct_align res_dbl;
60*1fd5a2e1SPrashanth Swaminathan
61*1fd5a2e1SPrashanth Swaminathan cls_struct_type.size = 0;
62*1fd5a2e1SPrashanth Swaminathan cls_struct_type.alignment = 0;
63*1fd5a2e1SPrashanth Swaminathan cls_struct_type.type = FFI_TYPE_STRUCT;
64*1fd5a2e1SPrashanth Swaminathan cls_struct_type.elements = cls_struct_fields;
65*1fd5a2e1SPrashanth Swaminathan
66*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[0] = &ffi_type_uchar;
67*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[1] = &ffi_type_pointer;
68*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[2] = &ffi_type_uchar;
69*1fd5a2e1SPrashanth Swaminathan cls_struct_fields[3] = NULL;
70*1fd5a2e1SPrashanth Swaminathan
71*1fd5a2e1SPrashanth Swaminathan dbl_arg_types[0] = &cls_struct_type;
72*1fd5a2e1SPrashanth Swaminathan dbl_arg_types[1] = &cls_struct_type;
73*1fd5a2e1SPrashanth Swaminathan dbl_arg_types[2] = NULL;
74*1fd5a2e1SPrashanth Swaminathan
75*1fd5a2e1SPrashanth Swaminathan CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
76*1fd5a2e1SPrashanth Swaminathan dbl_arg_types) == FFI_OK);
77*1fd5a2e1SPrashanth Swaminathan
78*1fd5a2e1SPrashanth Swaminathan args_dbl[0] = &g_dbl;
79*1fd5a2e1SPrashanth Swaminathan args_dbl[1] = &f_dbl;
80*1fd5a2e1SPrashanth Swaminathan args_dbl[2] = NULL;
81*1fd5a2e1SPrashanth Swaminathan
82*1fd5a2e1SPrashanth Swaminathan ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
83*1fd5a2e1SPrashanth Swaminathan /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
84*1fd5a2e1SPrashanth Swaminathan printf("res: %d %" PRIuPTR " %d\n", res_dbl.a, (uintptr_t)res_dbl.b, res_dbl.c);
85*1fd5a2e1SPrashanth Swaminathan /* { dg-output "\nres: 13 14271 140" } */
86*1fd5a2e1SPrashanth Swaminathan
87*1fd5a2e1SPrashanth Swaminathan CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
88*1fd5a2e1SPrashanth Swaminathan
89*1fd5a2e1SPrashanth Swaminathan res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
90*1fd5a2e1SPrashanth Swaminathan /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
91*1fd5a2e1SPrashanth Swaminathan printf("res: %d %" PRIuPTR " %d\n", res_dbl.a, (uintptr_t)res_dbl.b, res_dbl.c);
92*1fd5a2e1SPrashanth Swaminathan /* { dg-output "\nres: 13 14271 140" } */
93*1fd5a2e1SPrashanth Swaminathan
94*1fd5a2e1SPrashanth Swaminathan exit(0);
95*1fd5a2e1SPrashanth Swaminathan }
96