Ruby  2.4.2p198(2017-09-14revision59899)
cls_20byte.c
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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 #include "ffitest.h"
10 
11 typedef struct cls_struct_20byte {
12  double a;
13  double b;
14  int c;
16 
18  struct cls_struct_20byte a2)
19 {
20  struct cls_struct_20byte result;
21 
22  result.a = a1.a + a2.a;
23  result.b = a1.b + a2.b;
24  result.c = a1.c + a2.c;
25 
26  printf("%g %g %d %g %g %d: %g %g %d\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c,
27  result.a, result.b, result.c);
28  return result;
29 }
30 
31 static void
32 cls_struct_20byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
33  void* userdata __UNUSED__)
34 {
35  struct cls_struct_20byte a1, a2;
36 
37  a1 = *(struct cls_struct_20byte*)(args[0]);
38  a2 = *(struct cls_struct_20byte*)(args[1]);
39 
40  *(cls_struct_20byte*)resp = cls_struct_20byte_fn(a1, a2);
41 }
42 
43 int main (void)
44 {
45  ffi_cif cif;
46  void *code;
47  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
48  void* args_dbl[5];
49  ffi_type* cls_struct_fields[4];
50  ffi_type cls_struct_type;
51  ffi_type* dbl_arg_types[5];
52 
53  struct cls_struct_20byte g_dbl = { 1.0, 2.0, 3 };
54  struct cls_struct_20byte f_dbl = { 4.0, 5.0, 7 };
55  struct cls_struct_20byte res_dbl;
56 
57  cls_struct_type.size = 0;
58  cls_struct_type.alignment = 0;
59  cls_struct_type.type = FFI_TYPE_STRUCT;
60  cls_struct_type.elements = cls_struct_fields;
61 
62  cls_struct_fields[0] = &ffi_type_double;
63  cls_struct_fields[1] = &ffi_type_double;
64  cls_struct_fields[2] = &ffi_type_sint;
65  cls_struct_fields[3] = NULL;
66 
67  dbl_arg_types[0] = &cls_struct_type;
68  dbl_arg_types[1] = &cls_struct_type;
69  dbl_arg_types[2] = NULL;
70 
71  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
72  dbl_arg_types) == FFI_OK);
73 
74  args_dbl[0] = &g_dbl;
75  args_dbl[1] = &f_dbl;
76  args_dbl[2] = NULL;
77 
78  ffi_call(&cif, FFI_FN(cls_struct_20byte_fn), &res_dbl, args_dbl);
79  /* { dg-output "1 2 3 4 5 7: 5 7 10" } */
80  printf("res: %g %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
81  /* { dg-output "\nres: 5 7 10" } */
82 
83  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_20byte_gn, NULL, code) == FFI_OK);
84 
85  res_dbl = ((cls_struct_20byte(*)(cls_struct_20byte, cls_struct_20byte))(code))(g_dbl, f_dbl);
86  /* { dg-output "\n1 2 3 4 5 7: 5 7 10" } */
87  printf("res: %g %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
88  /* { dg-output "\nres: 5 7 10" } */
89 
90  exit(0);
91 }
cls_struct_20byte cls_struct_20byte_fn(struct cls_struct_20byte a1, struct cls_struct_20byte a2)
Definition: cls_20byte.c:17
int main(void)
Definition: cls_20byte.c:43
#define __UNUSED__
Definition: ffitest.h:28
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
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
static VALUE result
Definition: nkf.c:40
static void cls_struct_20byte_gn(ffi_cif *cif __UNUSED__, void *resp, void **args, void *userdata __UNUSED__)
Definition: cls_20byte.c:32
struct cls_struct_20byte cls_struct_20byte
#define CHECK(sub)
Definition: compile.c:408
#define NULL
Definition: _sdbm.c:102
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