Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_8byte.c Source File

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

cls_8byte.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_8byte {
12 int a;
13 float b;
14} cls_struct_8byte;
15
16 cls_struct_8byte cls_struct_8byte_fn(struct cls_struct_8byte a1,
17 struct cls_struct_8byte a2)
18{
19 struct cls_struct_8byte result;
20
21 result.a = a1.a + a2.a;
22 result.b = a1.b + a2.b;
23
24 printf("%d %g %d %g: %d %g\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b);
25
26 return result;
27}
28
29static void
30cls_struct_8byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
31 void* userdata __UNUSED__)
32{
33
34 struct cls_struct_8byte a1, a2;
35
36 a1 = *(struct cls_struct_8byte*)(args[0]);
37 a2 = *(struct cls_struct_8byte*)(args[1]);
38
39 *(cls_struct_8byte*)resp = cls_struct_8byte_fn(a1, a2);
40}
41
42 int main (void)
43{
44 ffi_cif cif;
45 void *code;
46 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
47 void* args_dbl[5];
48 ffi_type* cls_struct_fields[4];
49 ffi_type cls_struct_type;
50 ffi_type* dbl_arg_types[5];
51
52 struct cls_struct_8byte g_dbl = { 1, 2.0 };
53 struct cls_struct_8byte f_dbl = { 4, 5.0 };
54 struct cls_struct_8byte res_dbl;
55
56 cls_struct_type.size = 0;
57 cls_struct_type.alignment = 0;
58 cls_struct_type.type = FFI_TYPE_STRUCT;
59 cls_struct_type.elements = cls_struct_fields;
60
61 cls_struct_fields[0] = &ffi_type_sint;
62 cls_struct_fields[1] = &ffi_type_float;
63 cls_struct_fields[2] = NULL;
64
65 dbl_arg_types[0] = &cls_struct_type;
66 dbl_arg_types[1] = &cls_struct_type;
67 dbl_arg_types[2] = NULL;
68
69 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
70 dbl_arg_types) == FFI_OK);
71
72 args_dbl[0] = &g_dbl;
73 args_dbl[1] = &f_dbl;
74 args_dbl[2] = NULL;
75
76 ffi_call(&cif, FFI_FN(cls_struct_8byte_fn), &res_dbl, args_dbl);
77 /* { dg-output "1 2 4 5: 5 7" } */
78 printf("res: %d %g\n", res_dbl.a, res_dbl.b);
79 /* { dg-output "\nres: 5 7" } */
80 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_8byte_gn, NULL, code) == FFI_OK);
81
82 res_dbl = ((cls_struct_8byte(*)(cls_struct_8byte, cls_struct_8byte))(code))(g_dbl, f_dbl);
83 /* { dg-output "\n1 2 4 5: 5 7" } */
84 printf("res: %d %g\n", res_dbl.a, res_dbl.b);
85 /* { dg-output "\nres: 5 7" } */
86
87 exit(0);
88}
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
cls_struct_8byte_fn
cls_struct_8byte cls_struct_8byte_fn(struct cls_struct_8byte a1, struct cls_struct_8byte a2)
Definition: cls_8byte.c:16
main
int main(void)
Definition: cls_8byte.c:42
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_8byte
Definition: cls_8byte.c:11
cls_struct_8byte::b
float b
Definition: cls_8byte.c:13
cls_struct_8byte::a
int a
Definition: cls_8byte.c:12
code
Definition: inftree9.h:24