1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* Area: ffi_call, closure_call
Purpose: Check structure passing with different structure size.
Contains structs as parameter of the struct itself.
Sample taken from Alan Modras patch to src/prep_cif.c.
Limitations: none.
PR: none.
Originator: <andreast@gcc.gnu.org> 20051010 */
/* { dg-do run } */
#include "ffitest.h"
typedef struct A {
unsigned long long a;
unsigned char b;
} A;
typedef struct B {
struct A x;
unsigned char y;
} B;
typedef struct C {
unsigned long long d;
unsigned char e;
} C;
static B B_fn(struct A b2, struct B b3, struct C b4)
{
struct B result;
result.x.a = b2.a + b3.x.a + b4.d;
result.x.b = b2.b + b3.x.b + b3.y + b4.e;
result.y = b2.b + b3.x.b + b4.e;
printf("%d %d %d %d %d %d %d: %d %d %d\n", (int)b2.a, b2.b,
(int)b3.x.a, b3.x.b, b3.y, (int)b4.d, b4.e,
(int)result.x.a, result.x.b, result.y);
return result;
}
static void
B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
void* userdata __UNUSED__)
{
struct A b0;
struct B b1;
struct C b2;
b0 = *(struct A*)(args[0]);
b1 = *(struct B*)(args[1]);
b2 = *(struct C*)(args[2]);
*(B*)resp = B_fn(b0, b1, b2);
}
int main (void)
{
ffi_cif cif;
void *code;
ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
void* args_dbl[4];
ffi_type* cls_struct_fields[3];
ffi_type* cls_struct_fields1[3];
ffi_type* cls_struct_fields2[3];
ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
ffi_type* dbl_arg_types[4];
struct A e_dbl = { 1LL, 7};
struct B f_dbl = {{12LL , 127}, 99};
struct C g_dbl = { 2LL, 9};
struct B res_dbl;
cls_struct_type.size = 0;
cls_struct_type.alignment = 0;
cls_struct_type.type = FFI_TYPE_STRUCT;
cls_struct_type.elements = cls_struct_fields;
cls_struct_type1.size = 0;
cls_struct_type1.alignment = 0;
cls_struct_type1.type = FFI_TYPE_STRUCT;
cls_struct_type1.elements = cls_struct_fields1;
cls_struct_type2.size = 0;
cls_struct_type2.alignment = 0;
cls_struct_type2.type = FFI_TYPE_STRUCT;
cls_struct_type2.elements = cls_struct_fields2;
cls_struct_fields[0] = &ffi_type_uint64;
cls_struct_fields[1] = &ffi_type_uchar;
cls_struct_fields[2] = NULL;
cls_struct_fields1[0] = &cls_struct_type;
cls_struct_fields1[1] = &ffi_type_uchar;
cls_struct_fields1[2] = NULL;
cls_struct_fields2[0] = &ffi_type_uint64;
cls_struct_fields2[1] = &ffi_type_uchar;
cls_struct_fields2[2] = NULL;
dbl_arg_types[0] = &cls_struct_type;
dbl_arg_types[1] = &cls_struct_type1;
dbl_arg_types[2] = &cls_struct_type2;
dbl_arg_types[3] = NULL;
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type1,
dbl_arg_types) == FFI_OK);
args_dbl[0] = &e_dbl;
args_dbl[1] = &f_dbl;
args_dbl[2] = &g_dbl;
args_dbl[3] = NULL;
ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
/* { dg-output "1 7 12 127 99 2 9: 15 242 143" } */
CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + g_dbl.d));
CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
res_dbl = ((B(*)(A, B, C))(code))(e_dbl, f_dbl, g_dbl);
/* { dg-output "\n1 7 12 127 99 2 9: 15 242 143" } */
CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + g_dbl.d));
CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e));
CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e));
exit(0);
}
|
