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