1 /* Area: ffi_call, closure_call
2 Purpose: Check structure passing with different structure size.
3 Especially with small structures which may fit in one
4 register. Depending on the ABI.
5 Limitations: none.
6 PR: none.
7 Originator: <andreast@gcc.gnu.org> 20030902 */
8
9 /* { dg-do run } */
10 #include "ffitest.h"
11
12 typedef struct cls_struct_4_1byte {
13 unsigned char a;
14 unsigned char b;
15 unsigned char c;
16 unsigned char d;
17 } cls_struct_4_1byte;
18
cls_struct_4_1byte_fn(struct cls_struct_4_1byte a1,struct cls_struct_4_1byte a2)19 cls_struct_4_1byte cls_struct_4_1byte_fn(struct cls_struct_4_1byte a1,
20 struct cls_struct_4_1byte a2)
21 {
22 struct cls_struct_4_1byte result;
23
24 result.a = a1.a + a2.a;
25 result.b = a1.b + a2.b;
26 result.c = a1.c + a2.c;
27 result.d = a1.d + a2.d;
28
29 printf("%d %d %d %d %d %d %d %d: %d %d %d %d\n", a1.a, a1.b, a1.c, a1.d,
30 a2.a, a2.b, a2.c, a2.d,
31 result.a, result.b, result.c, result.d);
32
33 return result;
34 }
35
36 static void
cls_struct_4_1byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)37 cls_struct_4_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38 void* userdata __UNUSED__)
39 {
40
41 struct cls_struct_4_1byte a1, a2;
42
43 a1 = *(struct cls_struct_4_1byte*)(args[0]);
44 a2 = *(struct cls_struct_4_1byte*)(args[1]);
45
46 *(cls_struct_4_1byte*)resp = cls_struct_4_1byte_fn(a1, a2);
47 }
48
main(void)49 int main (void)
50 {
51 ffi_cif cif;
52 #ifndef USING_MMAP
53 static ffi_closure cl;
54 #endif
55 ffi_closure *pcl;
56 void* args_dbl[5];
57 ffi_type* cls_struct_fields[5];
58 ffi_type cls_struct_type;
59 ffi_type* dbl_arg_types[5];
60
61 #ifdef USING_MMAP
62 pcl = allocate_mmap (sizeof(ffi_closure));
63 #else
64 pcl = &cl;
65 #endif
66
67 cls_struct_type.size = 0;
68 cls_struct_type.alignment = 0;
69 cls_struct_type.type = FFI_TYPE_STRUCT;
70 cls_struct_type.elements = cls_struct_fields;
71
72 struct cls_struct_4_1byte g_dbl = { 12, 13, 14, 15 };
73 struct cls_struct_4_1byte f_dbl = { 178, 179, 180, 181 };
74 struct cls_struct_4_1byte res_dbl;
75
76 cls_struct_fields[0] = &ffi_type_uchar;
77 cls_struct_fields[1] = &ffi_type_uchar;
78 cls_struct_fields[2] = &ffi_type_uchar;
79 cls_struct_fields[3] = &ffi_type_uchar;
80 cls_struct_fields[4] = NULL;
81
82 dbl_arg_types[0] = &cls_struct_type;
83 dbl_arg_types[1] = &cls_struct_type;
84 dbl_arg_types[2] = NULL;
85
86 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
87 dbl_arg_types) == FFI_OK);
88
89 args_dbl[0] = &g_dbl;
90 args_dbl[1] = &f_dbl;
91 args_dbl[2] = NULL;
92
93 ffi_call(&cif, FFI_FN(cls_struct_4_1byte_fn), &res_dbl, args_dbl);
94 /* { dg-output "12 13 14 15 178 179 180 181: 190 192 194 196" } */
95 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
96 /* { dg-output "\nres: 190 192 194 196" } */
97
98 CHECK(ffi_prep_closure(pcl, &cif, cls_struct_4_1byte_gn, NULL) == FFI_OK);
99
100 res_dbl = ((cls_struct_4_1byte(*)(cls_struct_4_1byte, cls_struct_4_1byte))(pcl))(g_dbl, f_dbl);
101 /* { dg-output "\n12 13 14 15 178 179 180 181: 190 192 194 196" } */
102 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
103 /* { dg-output "\nres: 190 192 194 196" } */
104
105 exit(0);
106 }
107