Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_16byte.c Source File

Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)

cls_16byte.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_16byte {
12 int a;
13 double b;
14 int c;
15} cls_struct_16byte;
16
17 cls_struct_16byte cls_struct_16byte_fn(struct cls_struct_16byte b1,
18 struct cls_struct_16byte b2)
19{
20 struct cls_struct_16byte result;
21
22 result.a = b1.a + b2.a;
23 result.b = b1.b + b2.b;
24 result.c = b1.c + b2.c;
25
26 printf("%d %g %d %d %g %d: %d %g %d\n", b1.a, b1.b, b1.c, b2.a, b2.b, b2.c,
27 result.a, result.b, result.c);
28
29 return result;
30}
31
32static void cls_struct_16byte_gn(ffi_cif* cif __UNUSED__, void* resp,
33 void** args, void* userdata __UNUSED__)
34{
35 struct cls_struct_16byte b1, b2;
36
37 b1 = *(struct cls_struct_16byte*)(args[0]);
38 b2 = *(struct cls_struct_16byte*)(args[1]);
39
40 *(cls_struct_16byte*)resp = cls_struct_16byte_fn(b1, b2);
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_16byte h_dbl = { 7, 8.0, 9 };
54 struct cls_struct_16byte j_dbl = { 1, 9.0, 3 };
55 struct cls_struct_16byte 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_sint;
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] = &h_dbl;
75 args_dbl[1] = &j_dbl;
76 args_dbl[2] = NULL;
77
78 ffi_call(&cif, FFI_FN(cls_struct_16byte_fn), &res_dbl, args_dbl);
79 /* { dg-output "7 8 9 1 9 3: 8 17 12" } */
80 printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
81 /* { dg-output "\nres: 8 17 12" } */
82
83 res_dbl.a = 0;
84 res_dbl.b = 0.0;
85 res_dbl.c = 0;
86
87 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_16byte_gn, NULL, code) == FFI_OK);
88
89 res_dbl = ((cls_struct_16byte(*)(cls_struct_16byte, cls_struct_16byte))(code))(h_dbl, j_dbl);
90 /* { dg-output "\n7 8 9 1 9 3: 8 17 12" } */
91 printf("res: %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
92 /* { dg-output "\nres: 8 17 12" } */
93
94 exit(0);
95}
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
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition: ffitarget.h:38
main
int main(void)
Definition: cls_16byte.c:43
cls_struct_16byte_fn
cls_struct_16byte cls_struct_16byte_fn(struct cls_struct_16byte b1, struct cls_struct_16byte b2)
Definition: cls_16byte.c:17
CHECK
#define CHECK(sub)
Definition: compile.c:429
ffitest.h
__UNUSED__
#define __UNUSED__
Definition: ffitest.h:23
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
NULL
#define NULL
Definition: regenc.h:69
cls_struct_16byte
Definition: cls_16byte.c:11
cls_struct_16byte::c
int c
Definition: cls_16byte.c:14
cls_struct_16byte::b
double b
Definition: cls_16byte.c:13
cls_struct_16byte::a
int a
Definition: cls_16byte.c:12
code
Definition: inftree9.h:24