Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_19byte.c Source File

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

cls_19byte.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_19byte {
12 double a;
13 unsigned char b;
14 unsigned char c;
15 double d;
16 unsigned char e;
17} cls_struct_19byte;
18
19 cls_struct_19byte cls_struct_19byte_fn(struct cls_struct_19byte a1,
20 struct cls_struct_19byte a2)
21{
22 struct cls_struct_19byte result;
23
24 result.a = a1.a + a2.a;
25 result.b = a1.b + a2.b;
26 result.c = a1.c + a2.c;
27 result.d = a1.d + a2.d;
28 result.e = a1.e + a2.e;
29
30
31 printf("%g %d %d %g %d %g %d %d %g %d: %g %d %d %g %d\n",
32 a1.a, a1.b, a1.c, a1.d, a1.e,
33 a2.a, a2.b, a2.c, a2.d, a2.e,
34 result.a, result.b, result.c, result.d, result.e);
35 return result;
36}
37
38static void
39cls_struct_19byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
40 void* userdata __UNUSED__)
41{
42 struct cls_struct_19byte a1, a2;
43
44 a1 = *(struct cls_struct_19byte*)(args[0]);
45 a2 = *(struct cls_struct_19byte*)(args[1]);
46
47 *(cls_struct_19byte*)resp = cls_struct_19byte_fn(a1, a2);
48}
49
50 int main (void)
51{
52 ffi_cif cif;
53 void *code;
54 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
55 void* args_dbl[3];
56 ffi_type* cls_struct_fields[6];
57 ffi_type cls_struct_type;
58 ffi_type* dbl_arg_types[3];
59
60 struct cls_struct_19byte g_dbl = { 1.0, 127, 126, 3.0, 120 };
61 struct cls_struct_19byte f_dbl = { 4.0, 125, 124, 5.0, 119 };
62 struct cls_struct_19byte res_dbl;
63
64 cls_struct_type.size = 0;
65 cls_struct_type.alignment = 0;
66 cls_struct_type.type = FFI_TYPE_STRUCT;
67 cls_struct_type.elements = cls_struct_fields;
68
69 cls_struct_fields[0] = &ffi_type_double;
70 cls_struct_fields[1] = &ffi_type_uchar;
71 cls_struct_fields[2] = &ffi_type_uchar;
72 cls_struct_fields[3] = &ffi_type_double;
73 cls_struct_fields[4] = &ffi_type_uchar;
74 cls_struct_fields[5] = NULL;
75
76 dbl_arg_types[0] = &cls_struct_type;
77 dbl_arg_types[1] = &cls_struct_type;
78 dbl_arg_types[2] = NULL;
79
80 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
81 dbl_arg_types) == FFI_OK);
82
83 args_dbl[0] = &g_dbl;
84 args_dbl[1] = &f_dbl;
85 args_dbl[2] = NULL;
86
87 ffi_call(&cif, FFI_FN(cls_struct_19byte_fn), &res_dbl, args_dbl);
88 /* { dg-output "1 127 126 3 120 4 125 124 5 119: 5 252 250 8 239" } */
89 printf("res: %g %d %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
90 res_dbl.d, res_dbl.e);
91 /* { dg-output "\nres: 5 252 250 8 239" } */
92
93 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_19byte_gn, NULL, code) == FFI_OK);
94
95 res_dbl = ((cls_struct_19byte(*)(cls_struct_19byte, cls_struct_19byte))(code))(g_dbl, f_dbl);
96 /* { dg-output "\n1 127 126 3 120 4 125 124 5 119: 5 252 250 8 239" } */
97 printf("res: %g %d %d %g %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
98 res_dbl.d, res_dbl.e);
99 /* { dg-output "\nres: 5 252 250 8 239" } */
100
101 exit(0);
102}
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_19byte.c:50
cls_struct_19byte_fn
cls_struct_19byte cls_struct_19byte_fn(struct cls_struct_19byte a1, struct cls_struct_19byte a2)
Definition: cls_19byte.c:19
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_19byte
Definition: cls_19byte.c:11
cls_struct_19byte::e
unsigned char e
Definition: cls_19byte.c:16
cls_struct_19byte::d
double d
Definition: cls_19byte.c:15
cls_struct_19byte::b
unsigned char b
Definition: cls_19byte.c:13
cls_struct_19byte::c
unsigned char c
Definition: cls_19byte.c:14
cls_struct_19byte::a
double a
Definition: cls_19byte.c:12
code
Definition: inftree9.h:24