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 *)((unsigned long)a1.b + (unsigned long)a2.b);
23 result.c = a1.c + a2.c;
24
25 printf("%d %lu %d %d %lu %d: %d %lu %d\n", a1.a, (unsigned long)a1.b, a1.c,
26 a2.a, (unsigned long)a2.b, a2.c, result.a, (unsigned long)result.b,
27 result.c);
28
29 return result;
30 }
31
32 static void
cls_struct_align_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)33 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
34 void* userdata __UNUSED__)
35 {
36
37 struct cls_struct_align a1, a2;
38
39 a1 = *(struct cls_struct_align*)(args[0]);
40 a2 = *(struct cls_struct_align*)(args[1]);
41
42 *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
43 }
44
main(void)45 int main (void)
46 {
47 ffi_cif cif;
48 #ifndef USING_MMAP
49 static ffi_closure cl;
50 #endif
51 ffi_closure *pcl;
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 #ifdef USING_MMAP
58 pcl = allocate_mmap (sizeof(ffi_closure));
59 #else
60 pcl = &cl;
61 #endif
62
63 cls_struct_type.size = 0;
64 cls_struct_type.alignment = 0;
65 cls_struct_type.type = FFI_TYPE_STRUCT;
66 cls_struct_type.elements = cls_struct_fields;
67
68 struct cls_struct_align g_dbl = { 12, (void *)4951, 127 };
69 struct cls_struct_align f_dbl = { 1, (void *)9320, 13 };
70 struct cls_struct_align res_dbl;
71
72 cls_struct_fields[0] = &ffi_type_uchar;
73 cls_struct_fields[1] = &ffi_type_pointer;
74 cls_struct_fields[2] = &ffi_type_uchar;
75 cls_struct_fields[3] = NULL;
76
77 dbl_arg_types[0] = &cls_struct_type;
78 dbl_arg_types[1] = &cls_struct_type;
79 dbl_arg_types[2] = NULL;
80
81 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
82 dbl_arg_types) == FFI_OK);
83
84 args_dbl[0] = &g_dbl;
85 args_dbl[1] = &f_dbl;
86 args_dbl[2] = NULL;
87
88 ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
89 /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
90 printf("res: %d %lu %d\n", res_dbl.a, (unsigned long)res_dbl.b, res_dbl.c);
91 /* { dg-output "\nres: 13 14271 140" } */
92
93 CHECK(ffi_prep_closure(pcl, &cif, cls_struct_align_gn, NULL) == FFI_OK);
94
95 res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(pcl))(g_dbl, f_dbl);
96 /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
97 printf("res: %d %lu %d\n", res_dbl.a, (unsigned long)res_dbl.b, res_dbl.c);
98 /* { dg-output "\nres: 13 14271 140" } */
99
100 exit(0);
101 }
102