1 /* Area: ffi_call, closure_call
2 Purpose: Check structure passing with different structure size.
3 Depending on the ABI. Check overlapping.
4 Limitations: none.
5 PR: none.
6 Originator: <andreast@gcc.gnu.org> 20030828 */
7
8 /* { dg-do run } */
9
10 #include "ffitest.h"
11
12 typedef struct cls_struct_4byte {
13 unsigned short a;
14 unsigned short b;
15 } cls_struct_4byte;
16
cls_struct_4byte_fn(struct cls_struct_4byte a1,struct cls_struct_4byte a2)17 cls_struct_4byte cls_struct_4byte_fn(struct cls_struct_4byte a1,
18 struct cls_struct_4byte a2)
19 {
20 struct cls_struct_4byte result;
21
22 result.a = a1.a + a2.a;
23 result.b = a1.b + a2.b;
24
25 printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
26
27 return result;
28 }
29
30 static void
cls_struct_4byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)31 cls_struct_4byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
32 void* userdata __UNUSED__)
33 {
34
35 struct cls_struct_4byte a1, a2;
36
37 a1 = *(struct cls_struct_4byte*)(args[0]);
38 a2 = *(struct cls_struct_4byte*)(args[1]);
39
40 *(cls_struct_4byte*)resp = cls_struct_4byte_fn(a1, a2);
41 }
42
main(void)43 int main (void)
44 {
45 ffi_cif cif;
46 #ifndef USING_MMAP
47 static ffi_closure cl;
48 #endif
49 ffi_closure *pcl;
50 void* args_dbl[5];
51 ffi_type* cls_struct_fields[4];
52 ffi_type cls_struct_type;
53 ffi_type* dbl_arg_types[5];
54
55 #ifdef USING_MMAP
56 pcl = allocate_mmap (sizeof(ffi_closure));
57 #else
58 pcl = &cl;
59 #endif
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 struct cls_struct_4byte g_dbl = { 127, 120 };
67 struct cls_struct_4byte f_dbl = { 12, 128 };
68 struct cls_struct_4byte res_dbl;
69
70 cls_struct_fields[0] = &ffi_type_ushort;
71 cls_struct_fields[1] = &ffi_type_ushort;
72 cls_struct_fields[2] = NULL;
73
74 dbl_arg_types[0] = &cls_struct_type;
75 dbl_arg_types[1] = &cls_struct_type;
76 dbl_arg_types[2] = NULL;
77
78 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
79 dbl_arg_types) == FFI_OK);
80
81 args_dbl[0] = &g_dbl;
82 args_dbl[1] = &f_dbl;
83 args_dbl[2] = NULL;
84
85 ffi_call(&cif, FFI_FN(cls_struct_4byte_fn), &res_dbl, args_dbl);
86 /* { dg-output "127 120 12 128: 139 248" } */
87 printf("res: %d %d\n", res_dbl.a, res_dbl.b);
88 /* { dg-output "\nres: 139 248" } */
89
90 CHECK(ffi_prep_closure(pcl, &cif, cls_struct_4byte_gn, NULL) == FFI_OK);
91
92 res_dbl = ((cls_struct_4byte(*)(cls_struct_4byte, cls_struct_4byte))(pcl))(g_dbl, f_dbl);
93 /* { dg-output "\n127 120 12 128: 139 248" } */
94 printf("res: %d %d\n", res_dbl.a, res_dbl.b);
95 /* { dg-output "\nres: 139 248" } */
96
97 exit(0);
98 }
99