Ruby  2.7.1p83(2020-03-31revisiona0c7c23c9cec0d0ffcba012279cd652d28ad5bf3)
cls_3byte2.c
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1 /* Area: ffi_call, closure_call
2  Purpose: Check structure passing with different structure size.
3  Especially with small structures which may fit in one
4  register. Depending on the ABI. Check overlapping.
5  Limitations: none.
6  PR: none.
7  Originator: <andreast@gcc.gnu.org> 20030828 */
8 
9 /* { dg-do run } */
10 #include "ffitest.h"
11 
12 typedef struct cls_struct_3byte_1 {
13  unsigned char a;
14  unsigned short b;
16 
18  struct cls_struct_3byte_1 a2)
19 {
20  struct cls_struct_3byte_1 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_3byte_gn1(ffi_cif* cif __UNUSED__, void* resp, void** args,
32  void* userdata __UNUSED__)
33 {
34 
35  struct cls_struct_3byte_1 a1, a2;
36 
37  a1 = *(struct cls_struct_3byte_1*)(args[0]);
38  a2 = *(struct cls_struct_3byte_1*)(args[1]);
39 
40  *(cls_struct_3byte_1*)resp = cls_struct_3byte_fn1(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_3byte_1 g_dbl = { 15, 125 };
54  struct cls_struct_3byte_1 f_dbl = { 9, 19 };
55  struct cls_struct_3byte_1 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_uchar;
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_3byte_fn1), &res_dbl, args_dbl);
78  /* { dg-output "15 125 9 19: 24 144" } */
79  printf("res: %d %d\n", res_dbl.a, res_dbl.b);
80  /* { dg-output "\nres: 24 144" } */
81 
82  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3byte_gn1, NULL, code) == FFI_OK);
83 
84  res_dbl = ((cls_struct_3byte_1(*)(cls_struct_3byte_1, cls_struct_3byte_1))(code))(g_dbl, f_dbl);
85  /* { dg-output "\n15 125 9 19: 24 144" } */
86  printf("res: %d %d\n", res_dbl.a, res_dbl.b);
87  /* { dg-output "\nres: 24 144" } */
88 
89  exit(0);
90 }
cls_struct_3byte_1
Definition: cls_3byte2.c:12
main
int main(void)
Definition: cls_3byte2.c:43
cls_struct_3byte_1::a
unsigned char a
Definition: cls_3byte2.c:13
NULL
#define NULL
Definition: _sdbm.c:101
ffitest.h
__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
cls_struct_3byte_1::b
unsigned short b
Definition: cls_3byte2.c:14
cls_struct_3byte_fn1
cls_struct_3byte_1 cls_struct_3byte_fn1(struct cls_struct_3byte_1 a1, struct cls_struct_3byte_1 a2)
Definition: cls_3byte2.c:17
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
cls_struct_3byte_1
struct cls_struct_3byte_1 cls_struct_3byte_1
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