Ruby  2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)
cls_3_1byte.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.
5  Limitations: none.
6  PR: none.
7  Originator: <andreast@gcc.gnu.org> 20030902 */
8 
9 /* { dg-do run } */
10 #include "ffitest.h"
11 
12 typedef struct cls_struct_3_1byte {
13  unsigned char a;
14  unsigned char b;
15  unsigned char c;
17 
19  struct cls_struct_3_1byte a2)
20 {
21  struct cls_struct_3_1byte result;
22 
23  result.a = a1.a + a2.a;
24  result.b = a1.b + a2.b;
25  result.c = a1.c + a2.c;
26 
27  printf("%d %d %d %d %d %d: %d %d %d\n", a1.a, a1.b, a1.c,
28  a2.a, a2.b, a2.c,
29  result.a, result.b, result.c);
30 
31  return result;
32 }
33 
34 static void
35 cls_struct_3_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
36  void* userdata __UNUSED__)
37 {
38 
39  struct cls_struct_3_1byte a1, a2;
40 
41  a1 = *(struct cls_struct_3_1byte*)(args[0]);
42  a2 = *(struct cls_struct_3_1byte*)(args[1]);
43 
44  *(cls_struct_3_1byte*)resp = cls_struct_3_1byte_fn(a1, a2);
45 }
46 
47 int main (void)
48 {
49  ffi_cif cif;
50  void *code;
51  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
52  void* args_dbl[5];
53  ffi_type* cls_struct_fields[4];
54  ffi_type cls_struct_type;
55  ffi_type* dbl_arg_types[5];
56 
57  struct cls_struct_3_1byte g_dbl = { 12, 13, 14 };
58  struct cls_struct_3_1byte f_dbl = { 178, 179, 180 };
59  struct cls_struct_3_1byte res_dbl;
60 
61  cls_struct_type.size = 0;
62  cls_struct_type.alignment = 0;
63  cls_struct_type.type = FFI_TYPE_STRUCT;
64  cls_struct_type.elements = cls_struct_fields;
65 
66  cls_struct_fields[0] = &ffi_type_uchar;
67  cls_struct_fields[1] = &ffi_type_uchar;
68  cls_struct_fields[2] = &ffi_type_uchar;
69  cls_struct_fields[3] = NULL;
70 
71  dbl_arg_types[0] = &cls_struct_type;
72  dbl_arg_types[1] = &cls_struct_type;
73  dbl_arg_types[2] = NULL;
74 
75  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
76  dbl_arg_types) == FFI_OK);
77 
78  args_dbl[0] = &g_dbl;
79  args_dbl[1] = &f_dbl;
80  args_dbl[2] = NULL;
81 
82  ffi_call(&cif, FFI_FN(cls_struct_3_1byte_fn), &res_dbl, args_dbl);
83  /* { dg-output "12 13 14 178 179 180: 190 192 194" } */
84  printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
85  /* { dg-output "\nres: 190 192 194" } */
86 
87  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3_1byte_gn, NULL, code) == FFI_OK);
88 
89  res_dbl = ((cls_struct_3_1byte(*)(cls_struct_3_1byte, cls_struct_3_1byte))(code))(g_dbl, f_dbl);
90  /* { dg-output "\n12 13 14 178 179 180: 190 192 194" } */
91  printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
92  /* { dg-output "\nres: 190 192 194" } */
93 
94  exit(0);
95 }
cls_struct_3_1byte::c
unsigned char c
Definition: cls_3_1byte.c:15
cls_struct_3_1byte_fn
cls_struct_3_1byte cls_struct_3_1byte_fn(struct cls_struct_3_1byte a1, struct cls_struct_3_1byte a2)
Definition: cls_3_1byte.c:18
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__))
cls_struct_3_1byte
struct cls_struct_3_1byte cls_struct_3_1byte
cls_struct_3_1byte::b
unsigned char b
Definition: cls_3_1byte.c:14
ffitest.h
cls_struct_3_1byte::a
unsigned char a
Definition: cls_3_1byte.c:13
main
int main(void)
Definition: cls_3_1byte.c:47
__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
ffi_type_uchar
#define ffi_type_uchar
Definition: fiddle.h:55
cls_struct_3_1byte
Definition: cls_3_1byte.c:12
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
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