Ruby 2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)

nested_struct2.c
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1 /* Area: ffi_call, closure_call
2 Purpose: Check structure passing with different structure size.
3 Contains structs as parameter of the struct itself.
4 Sample taken from Alan Modras patch to src/prep_cif.c.
5 Limitations: none.
6 PR: none.
7 Originator: <andreast@gcc.gnu.org> 20030911 */
8
9 /* { dg-do run } */
10 #include "ffitest.h"
11
12 typedef struct A {
13 unsigned long a;
14 unsigned char b;
15 } A;
16
17 typedef struct B {
18 struct A x;
19 unsigned char y;
20 } B;
21
22 B B_fn(struct A b0, struct B b1)
23 {
24 struct B result;
25
26 result.x.a = b0.a + b1.x.a;
27 result.x.b = b0.b + b1.x.b + b1.y;
28 result.y = b0.b + b1.x.b;
29
30 printf("%lu %d %lu %d %d: %lu %d %d\n", b0.a, b0.b, b1.x.a, b1.x.b, b1.y,
31 result.x.a, result.x.b, result.y);
32
33 return result;
34 }
35
36 static void
37 B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38 void* userdata __UNUSED__)
39 {
40 struct A b0;
41 struct B b1;
42
43 b0 = *(struct A*)(args[0]);
44 b1 = *(struct B*)(args[1]);
45
46 *(B*)resp = B_fn(b0, b1);
47 }
48
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[3];
55 ffi_type* cls_struct_fields[3];
56 ffi_type* cls_struct_fields1[3];
57 ffi_type cls_struct_type, cls_struct_type1;
58 ffi_type* dbl_arg_types[3];
59
60 struct A e_dbl = { 1, 7};
61 struct B f_dbl = {{12 , 127}, 99};
62
63 struct B res_dbl;
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 cls_struct_type1.size = 0;
71 cls_struct_type1.alignment = 0;
72 cls_struct_type1.type = FFI_TYPE_STRUCT;
73 cls_struct_type1.elements = cls_struct_fields1;
74
75 cls_struct_fields[0] = &ffi_type_ulong;
76 cls_struct_fields[1] = &ffi_type_uchar;
77 cls_struct_fields[2] = NULL;
78
79 cls_struct_fields1[0] = &cls_struct_type;
80 cls_struct_fields1[1] = &ffi_type_uchar;
81 cls_struct_fields1[2] = NULL;
82
83
84 dbl_arg_types[0] = &cls_struct_type;
85 dbl_arg_types[1] = &cls_struct_type1;
86 dbl_arg_types[2] = NULL;
87
88 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type1,
89 dbl_arg_types) == FFI_OK);
90
91 args_dbl[0] = &e_dbl;
92 args_dbl[1] = &f_dbl;
93 args_dbl[2] = NULL;
94
95 ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
96 /* { dg-output "1 7 12 127 99: 13 233 134" } */
97 CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
98 CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
99 CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
100
101 CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
102
103 res_dbl = ((B(*)(A, B))(code))(e_dbl, f_dbl);
104 /* { dg-output "\n1 7 12 127 99: 13 233 134" } */
105 CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
106 CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
107 CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
108
109 exit(0);
110 }
B
struct B B
B::x
struct A x
Definition: nested_struct10.c:19
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
NULL
#define NULL
Definition: _sdbm.c:101
exit
void exit(int __status) __attribute__((__noreturn__))
ffitest.h
A::a
unsigned long long a
Definition: nested_struct10.c:13
B_fn
B B_fn(struct A b0, struct B b1)
Definition: nested_struct2.c:22
B::y
unsigned char y
Definition: nested_struct10.c:18
__UNUSED__
#define __UNUSED__
Definition: ffitest.h:28
CHECK
#define CHECK(sub)
Definition: compile.c:448
A::a
unsigned long a
Definition: nested_struct2.c:13
A
Definition: nested_struct10.c:12
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition: ffitarget.h:38
A
struct A A
A::b
unsigned char b
Definition: nested_struct10.c:14
ffi_type_uchar
#define ffi_type_uchar
Definition: fiddle.h:55
ffi_prep_cif
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition: prep_cif.c:226
main
int main(void)
Definition: nested_struct2.c:49
B
Definition: nested_struct10.c:17
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
ffi_prep_closure_loc
ffi_status ffi_prep_closure_loc(ffi_closure *closure, ffi_cif *cif, void(*fun)(ffi_cif *, void *, void **, void *), void *user_data, void *codeloc)
Definition: ffi.c:928