Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_5byte.c Source File

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

cls_5byte.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
11typedef struct cls_struct_5byte {
12 unsigned short a;
13 unsigned short b;
14 unsigned char c;
15} cls_struct_5byte;
16
17 cls_struct_5byte cls_struct_5byte_fn(struct cls_struct_5byte a1,
18 struct cls_struct_5byte a2)
19{
20 struct cls_struct_5byte result;
21
22 result.a = a1.a + a2.a;
23 result.b = a1.b + a2.b;
24 result.c = a1.c + a2.c;
25
26 printf("%d %d %d %d %d %d: %d %d %d\n", a1.a, a1.b, a1.c,
27 a2.a, a2.b, a2.c,
28 result.a, result.b, result.c);
29
30 return result;
31}
32
33static void
34cls_struct_5byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
35 void* userdata __UNUSED__)
36{
37
38 struct cls_struct_5byte a1, a2;
39
40 a1 = *(struct cls_struct_5byte*)(args[0]);
41 a2 = *(struct cls_struct_5byte*)(args[1]);
42
43 *(cls_struct_5byte*)resp = cls_struct_5byte_fn(a1, a2);
44}
45
46 int main (void)
47{
48 ffi_cif cif;
49 void *code;
50 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
51 void* args_dbl[5];
52 ffi_type* cls_struct_fields[4];
53 ffi_type cls_struct_type;
54 ffi_type* dbl_arg_types[5];
55
56 struct cls_struct_5byte g_dbl = { 127, 120, 1 };
57 struct cls_struct_5byte f_dbl = { 12, 128, 9 };
58 struct cls_struct_5byte res_dbl = { 0, 0, 0 };
59
60 cls_struct_type.size = 0;
61 cls_struct_type.alignment = 0;
62 cls_struct_type.type = FFI_TYPE_STRUCT;
63 cls_struct_type.elements = cls_struct_fields;
64
65 cls_struct_fields[0] = &ffi_type_ushort;
66 cls_struct_fields[1] = &ffi_type_ushort;
67 cls_struct_fields[2] = &ffi_type_uchar;
68 cls_struct_fields[3] = NULL;
69
70 dbl_arg_types[0] = &cls_struct_type;
71 dbl_arg_types[1] = &cls_struct_type;
72 dbl_arg_types[2] = NULL;
73
74 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
75 dbl_arg_types) == FFI_OK);
76
77 args_dbl[0] = &g_dbl;
78 args_dbl[1] = &f_dbl;
79 args_dbl[2] = NULL;
80
81 ffi_call(&cif, FFI_FN(cls_struct_5byte_fn), &res_dbl, args_dbl);
82 /* { dg-output "127 120 1 12 128 9: 139 248 10" } */
83 printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
84 /* { dg-output "\nres: 139 248 10" } */
85
86 res_dbl.a = 0;
87 res_dbl.b = 0;
88 res_dbl.c = 0;
89
90 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_5byte_gn, NULL, code) == FFI_OK);
91
92 res_dbl = ((cls_struct_5byte(*)(cls_struct_5byte, cls_struct_5byte))(code))(g_dbl, f_dbl);
93 /* { dg-output "\n127 120 1 12 128 9: 139 248 10" } */
94 printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
95 /* { dg-output "\nres: 139 248 10" } */
96
97 exit(0);
98}
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_5byte.c:46
cls_struct_5byte_fn
cls_struct_5byte cls_struct_5byte_fn(struct cls_struct_5byte a1, struct cls_struct_5byte a2)
Definition: cls_5byte.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_5byte
Definition: cls_5_1_byte.c:11
cls_struct_5byte::b
unsigned char b
Definition: cls_5_1_byte.c:13
cls_struct_5byte::a
unsigned short a
Definition: cls_5byte.c:12
cls_struct_5byte::c
unsigned char c
Definition: cls_5_1_byte.c:14
cls_struct_5byte::b
unsigned short b
Definition: cls_5byte.c:13
cls_struct_5byte::a
unsigned char a
Definition: cls_5_1_byte.c:12
code
Definition: inftree9.h:24