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
9 /* { dg-do run } */
10 #include "ffitest.h"
11
12 typedef struct cls_struct_6byte {
13 unsigned short a;
14 unsigned short b;
15 unsigned char c;
16 unsigned char d;
17 } cls_struct_6byte;
18
cls_struct_6byte_fn(struct cls_struct_6byte a1,struct cls_struct_6byte a2)19 cls_struct_6byte cls_struct_6byte_fn(struct cls_struct_6byte a1,
20 struct cls_struct_6byte a2)
21 {
22 struct cls_struct_6byte 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_6byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)37 cls_struct_6byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38 void* userdata __UNUSED__)
39 {
40
41 struct cls_struct_6byte a1, a2;
42
43 a1 = *(struct cls_struct_6byte*)(args[0]);
44 a2 = *(struct cls_struct_6byte*)(args[1]);
45
46 *(cls_struct_6byte*)resp = cls_struct_6byte_fn(a1, a2);
47 }
48
main(void)49 int main (void)
50 {
51 ffi_cif cif;
52 void *code;
53 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
54 void* args_dbl[5];
55 ffi_type* cls_struct_fields[5];
56 ffi_type cls_struct_type;
57 ffi_type* dbl_arg_types[5];
58
59 struct cls_struct_6byte g_dbl = { 127, 120, 1, 128 };
60 struct cls_struct_6byte f_dbl = { 12, 128, 9, 127 };
61 struct cls_struct_6byte res_dbl;
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 cls_struct_fields[0] = &ffi_type_ushort;
69 cls_struct_fields[1] = &ffi_type_ushort;
70 cls_struct_fields[2] = &ffi_type_uchar;
71 cls_struct_fields[3] = &ffi_type_uchar;
72 cls_struct_fields[4] = 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_6byte_fn), &res_dbl, args_dbl);
86 /* { dg-output "127 120 1 128 12 128 9 127: 139 248 10 255" } */
87 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
88 /* { dg-output "\nres: 139 248 10 255" } */
89
90 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_6byte_gn, NULL, code) == FFI_OK);
91
92 res_dbl = ((cls_struct_6byte(*)(cls_struct_6byte, cls_struct_6byte))(code))(g_dbl, f_dbl);
93 /* { dg-output "\n127 120 1 128 12 128 9 127: 139 248 10 255" } */
94 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
95 /* { dg-output "\nres: 139 248 10 255" } */
96
97
98 exit(0);
99 }
100