1 /* Area: ffi_call, closure_call
2 Purpose: Check structure passing with different structure size.
3 Depending on the ABI. Double alignment check on darwin.
4 Limitations: none.
5 PR: none.
6 Originator: <andreast@gcc.gnu.org> 20030915 */
7
8 /* { dg-do run } */
9 #include "ffitest.h"
10
11 typedef struct cls_struct_18byte {
12 double a;
13 unsigned char b;
14 unsigned char c;
15 double d;
16 } cls_struct_18byte;
17
cls_struct_18byte_fn(struct cls_struct_18byte a1,struct cls_struct_18byte a2)18 cls_struct_18byte cls_struct_18byte_fn(struct cls_struct_18byte a1,
19 struct cls_struct_18byte a2)
20 {
21 struct cls_struct_18byte result;
22
23 result.a = a1.a + a2.a;
24 result.b = a1.b + a2.b;
25 result.c = a1.c + a2.c;
26 result.d = a1.d + a2.d;
27
28
29 printf("%g %d %d %g %g %d %d %g: %g %d %d %g\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 return result;
33 }
34
35 static void
cls_struct_18byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)36 cls_struct_18byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
37 void* userdata __UNUSED__)
38 {
39 struct cls_struct_18byte a1, a2;
40
41 a1 = *(struct cls_struct_18byte*)(args[0]);
42 a2 = *(struct cls_struct_18byte*)(args[1]);
43
44 *(cls_struct_18byte*)resp = cls_struct_18byte_fn(a1, a2);
45 }
46
main(void)47 int main (void)
48 {
49 ffi_cif cif;
50 #ifndef USING_MMAP
51 static ffi_closure cl;
52 #endif
53 ffi_closure *pcl;
54 void* args_dbl[3];
55 ffi_type* cls_struct_fields[5];
56 ffi_type cls_struct_type;
57 ffi_type* dbl_arg_types[3];
58
59 #ifdef USING_MMAP
60 pcl = allocate_mmap (sizeof(ffi_closure));
61 #else
62 pcl = &cl;
63 #endif
64
65 cls_struct_type.size = 0;
66 cls_struct_type.alignment = 0;
67 cls_struct_type.type = FFI_TYPE_STRUCT;
68 cls_struct_type.elements = cls_struct_fields;
69
70 struct cls_struct_18byte g_dbl = { 1.0, 127, 126, 3.0 };
71 struct cls_struct_18byte f_dbl = { 4.0, 125, 124, 5.0 };
72 struct cls_struct_18byte res_dbl;
73
74 cls_struct_fields[0] = &ffi_type_double;
75 cls_struct_fields[1] = &ffi_type_uchar;
76 cls_struct_fields[2] = &ffi_type_uchar;
77 cls_struct_fields[3] = &ffi_type_double;
78 cls_struct_fields[4] = NULL;
79
80 dbl_arg_types[0] = &cls_struct_type;
81 dbl_arg_types[1] = &cls_struct_type;
82 dbl_arg_types[2] = NULL;
83
84 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
85 dbl_arg_types) == FFI_OK);
86
87 args_dbl[0] = &g_dbl;
88 args_dbl[1] = &f_dbl;
89 args_dbl[2] = NULL;
90
91 ffi_call(&cif, FFI_FN(cls_struct_18byte_fn), &res_dbl, args_dbl);
92 /* { dg-output "1 127 126 3 4 125 124 5: 5 252 250 8" } */
93 printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
94 /* { dg-output "\nres: 5 252 250 8" } */
95
96 CHECK(ffi_prep_closure(pcl, &cif, cls_struct_18byte_gn, NULL) == FFI_OK);
97
98 res_dbl = ((cls_struct_18byte(*)(cls_struct_18byte, cls_struct_18byte))(pcl))(g_dbl, f_dbl);
99 /* { dg-output "\n1 127 126 3 4 125 124 5: 5 252 250 8" } */
100 printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
101 /* { dg-output "\nres: 5 252 250 8" } */
102
103 exit(0);
104 }
105