Ruby  2.7.1p83(2020-03-31revisiona0c7c23c9cec0d0ffcba012279cd652d28ad5bf3)
problem1.c
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1 /* Area: ffi_call, closure_call
2  Purpose: Check structure passing with different structure size.
3  Limitations: none.
4  PR: none.
5  Originator: <andreast@gcc.gnu.org> 20030828 */
6 
7 /* { dg-do run } */
8 #include "ffitest.h"
9 
10 typedef struct my_ffi_struct {
11  double a;
12  double b;
13  double c;
15 
17 {
18  struct my_ffi_struct result;
19  result.a = a1.a + a2.a;
20  result.b = a1.b + a2.b;
21  result.c = a1.c + a2.c;
22 
23 
24  printf("%g %g %g %g %g %g: %g %g %g\n", a1.a, a1.b, a1.c,
25  a2.a, a2.b, a2.c, result.a, result.b, result.c);
26 
27  return result;
28 }
29 
30 void stub(ffi_cif* cif __UNUSED__, void* resp, void** args,
31  void* userdata __UNUSED__)
32 {
33  struct my_ffi_struct a1;
34  struct my_ffi_struct a2;
35 
36  a1 = *(struct my_ffi_struct*)(args[0]);
37  a2 = *(struct my_ffi_struct*)(args[1]);
38 
39  *(my_ffi_struct *)resp = callee(a1, a2);
40 }
41 
42 
43 int main(void)
44 {
45  ffi_type* my_ffi_struct_fields[4];
46  ffi_type my_ffi_struct_type;
47  ffi_cif cif;
48  void *code;
49  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
50  void* args[4];
51  ffi_type* arg_types[3];
52 
53  struct my_ffi_struct g = { 1.0, 2.0, 3.0 };
54  struct my_ffi_struct f = { 1.0, 2.0, 3.0 };
55  struct my_ffi_struct res;
56 
57  my_ffi_struct_type.size = 0;
58  my_ffi_struct_type.alignment = 0;
59  my_ffi_struct_type.type = FFI_TYPE_STRUCT;
60  my_ffi_struct_type.elements = my_ffi_struct_fields;
61 
62  my_ffi_struct_fields[0] = &ffi_type_double;
63  my_ffi_struct_fields[1] = &ffi_type_double;
64  my_ffi_struct_fields[2] = &ffi_type_double;
65  my_ffi_struct_fields[3] = NULL;
66 
67  arg_types[0] = &my_ffi_struct_type;
68  arg_types[1] = &my_ffi_struct_type;
69  arg_types[2] = NULL;
70 
71  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &my_ffi_struct_type,
72  arg_types) == FFI_OK);
73 
74  args[0] = &g;
75  args[1] = &f;
76  args[2] = NULL;
77  ffi_call(&cif, FFI_FN(callee), &res, args);
78  /* { dg-output "1 2 3 1 2 3: 2 4 6" } */
79  printf("res: %g %g %g\n", res.a, res.b, res.c);
80  /* { dg-output "\nres: 2 4 6" } */
81 
82  CHECK(ffi_prep_closure_loc(pcl, &cif, stub, NULL, code) == FFI_OK);
83 
84  res = ((my_ffi_struct(*)(struct my_ffi_struct, struct my_ffi_struct))(code))(g, f);
85  /* { dg-output "\n1 2 3 1 2 3: 2 4 6" } */
86  printf("res: %g %g %g\n", res.a, res.b, res.c);
87  /* { dg-output "\nres: 2 4 6" } */
88 
89  exit(0);;
90 }
my_ffi_struct
Definition: problem1.c:10
my_ffi_struct::c
double c
Definition: problem1.c:13
stub
void stub(ffi_cif *cif __UNUSED__, void *resp, void **args, void *userdata __UNUSED__)
Definition: problem1.c:30
NULL
#define NULL
Definition: _sdbm.c:101
ffitest.h
my_ffi_struct
struct my_ffi_struct my_ffi_struct
main
int main(void)
Definition: problem1.c:43
__UNUSED__
#define __UNUSED__
Definition: ffitest.h:28
CHECK
#define CHECK(sub)
Definition: compile.c:448
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition: ffitarget.h:38
f
#define f
my_ffi_struct::a
double a
Definition: problem1.c:11
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
exit
void exit(int __status) __attribute__((__noreturn__))
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
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
callee
my_ffi_struct callee(struct my_ffi_struct a1, struct my_ffi_struct a2)
Definition: problem1.c:16
my_ffi_struct::b
double b
Definition: problem1.c:12