Ruby  2.4.2p198(2017-09-14revision59899)
cls_4byte.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 
10 #include "ffitest.h"
11 
12 typedef struct cls_struct_4byte {
13  unsigned short a;
14  unsigned short b;
16 
18  struct cls_struct_4byte a2)
19 {
20  struct cls_struct_4byte result;
21 
22  result.a = a1.a + a2.a;
23  result.b = a1.b + a2.b;
24 
25  printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
26 
27  return result;
28 }
29 
30 static void
31 cls_struct_4byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
32  void* userdata __UNUSED__)
33 {
34 
35  struct cls_struct_4byte a1, a2;
36 
37  a1 = *(struct cls_struct_4byte*)(args[0]);
38  a2 = *(struct cls_struct_4byte*)(args[1]);
39 
40  *(cls_struct_4byte*)resp = cls_struct_4byte_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_4byte g_dbl = { 127, 120 };
54  struct cls_struct_4byte f_dbl = { 12, 128 };
55  struct cls_struct_4byte 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_ushort;
63  cls_struct_fields[1] = &ffi_type_ushort;
64  cls_struct_fields[2] = NULL;
65 
66  dbl_arg_types[0] = &cls_struct_type;
67  dbl_arg_types[1] = &cls_struct_type;
68  dbl_arg_types[2] = NULL;
69 
70  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
71  dbl_arg_types) == FFI_OK);
72 
73  args_dbl[0] = &g_dbl;
74  args_dbl[1] = &f_dbl;
75  args_dbl[2] = NULL;
76 
77  ffi_call(&cif, FFI_FN(cls_struct_4byte_fn), &res_dbl, args_dbl);
78  /* { dg-output "127 120 12 128: 139 248" } */
79  printf("res: %d %d\n", res_dbl.a, res_dbl.b);
80  /* { dg-output "\nres: 139 248" } */
81 
82  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_4byte_gn, NULL, code) == FFI_OK);
83 
84  res_dbl = ((cls_struct_4byte(*)(cls_struct_4byte, cls_struct_4byte))(code))(g_dbl, f_dbl);
85  /* { dg-output "\n127 120 12 128: 139 248" } */
86  printf("res: %d %d\n", res_dbl.a, res_dbl.b);
87  /* { dg-output "\nres: 139 248" } */
88 
89  exit(0);
90 }
#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
unsigned short b
Definition: cls_4byte.c:14
struct cls_struct_4byte cls_struct_4byte
static void cls_struct_4byte_gn(ffi_cif *cif __UNUSED__, void *resp, void **args, void *userdata __UNUSED__)
Definition: cls_4byte.c:31
cls_struct_4byte cls_struct_4byte_fn(struct cls_struct_4byte a1, struct cls_struct_4byte a2)
Definition: cls_4byte.c:17
#define CHECK(sub)
Definition: compile.c:408
unsigned short a
Definition: cls_4byte.c:13
#define NULL
Definition: _sdbm.c:102
int main(void)
Definition: cls_4byte.c:43
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