Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_18byte.c Source File

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

cls_18byte.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. Double alignment check on darwin.
4 Limitations: none.
5 PR: none.
6 Originator: <andreast@gcc.gnu.org> 20030915 */
7
8/* { dg-do run } */
9#include "ffitest.h"
10
11 typedef struct cls_struct_18byte {
12 double a;
13 unsigned char b;
14 unsigned char c;
15 double d;
16} cls_struct_18byte;
17
18 cls_struct_18byte cls_struct_18byte_fn(struct cls_struct_18byte a1,
19 struct cls_struct_18byte a2)
20{
21 struct cls_struct_18byte result;
22
23 result.a = a1.a + a2.a;
24 result.b = a1.b + a2.b;
25 result.c = a1.c + a2.c;
26 result.d = a1.d + a2.d;
27
28
29 printf("%g %d %d %g %g %d %d %g: %g %d %d %g\n", a1.a, a1.b, a1.c, a1.d,
30 a2.a, a2.b, a2.c, a2.d,
31 result.a, result.b, result.c, result.d);
32 return result;
33}
34
35static void
36cls_struct_18byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
37 void* userdata __UNUSED__)
38{
39 struct cls_struct_18byte a1, a2;
40
41 a1 = *(struct cls_struct_18byte*)(args[0]);
42 a2 = *(struct cls_struct_18byte*)(args[1]);
43
44 *(cls_struct_18byte*)resp = cls_struct_18byte_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[3];
53 ffi_type* cls_struct_fields[5];
54 ffi_type cls_struct_type;
55 ffi_type* dbl_arg_types[3];
56
57 struct cls_struct_18byte g_dbl = { 1.0, 127, 126, 3.0 };
58 struct cls_struct_18byte f_dbl = { 4.0, 125, 124, 5.0 };
59 struct cls_struct_18byte 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_double;
67 cls_struct_fields[1] = &ffi_type_uchar;
68 cls_struct_fields[2] = &ffi_type_uchar;
69 cls_struct_fields[3] = &ffi_type_double;
70 cls_struct_fields[4] = NULL;
71
72 dbl_arg_types[0] = &cls_struct_type;
73 dbl_arg_types[1] = &cls_struct_type;
74 dbl_arg_types[2] = NULL;
75
76 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
77 dbl_arg_types) == FFI_OK);
78
79 args_dbl[0] = &g_dbl;
80 args_dbl[1] = &f_dbl;
81 args_dbl[2] = NULL;
82
83 ffi_call(&cif, FFI_FN(cls_struct_18byte_fn), &res_dbl, args_dbl);
84 /* { dg-output "1 127 126 3 4 125 124 5: 5 252 250 8" } */
85 printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
86 /* { dg-output "\nres: 5 252 250 8" } */
87
88 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_18byte_gn, NULL, code) == FFI_OK);
89
90 res_dbl = ((cls_struct_18byte(*)(cls_struct_18byte, cls_struct_18byte))(code))(g_dbl, f_dbl);
91 /* { dg-output "\n1 127 126 3 4 125 124 5: 5 252 250 8" } */
92 printf("res: %g %d %d %g\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
93 /* { dg-output "\nres: 5 252 250 8" } */
94
95 exit(0);
96}
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_18byte_fn
cls_struct_18byte cls_struct_18byte_fn(struct cls_struct_18byte a1, struct cls_struct_18byte a2)
Definition: cls_18byte.c:18
main
int main(void)
Definition: cls_18byte.c:47
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_18byte
Definition: cls_18byte.c:11
cls_struct_18byte::b
unsigned char b
Definition: cls_18byte.c:13
cls_struct_18byte::c
unsigned char c
Definition: cls_18byte.c:14
cls_struct_18byte::a
double a
Definition: cls_18byte.c:12
cls_struct_18byte::d
double d
Definition: cls_18byte.c:15
code
Definition: inftree9.h:24