Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_7byte.c Source File

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

cls_7byte.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_7byte {
12 unsigned short a;
13 unsigned short b;
14 unsigned char c;
15 unsigned short d;
16} cls_struct_7byte;
17
18 cls_struct_7byte cls_struct_7byte_fn(struct cls_struct_7byte a1,
19 struct cls_struct_7byte a2)
20{
21 struct cls_struct_7byte 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 printf("%d %d %d %d %d %d %d %d: %d %d %d %d\n", a1.a, a1.b, a1.c, a1.d,
29 a2.a, a2.b, a2.c, a2.d,
30 result.a, result.b, result.c, result.d);
31
32 return result;
33}
34
35static void
36cls_struct_7byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
37 void* userdata __UNUSED__)
38{
39
40 struct cls_struct_7byte a1, a2;
41
42 a1 = *(struct cls_struct_7byte*)(args[0]);
43 a2 = *(struct cls_struct_7byte*)(args[1]);
44
45 *(cls_struct_7byte*)resp = cls_struct_7byte_fn(a1, a2);
46}
47
48 int main (void)
49{
50 ffi_cif cif;
51 void *code;
52 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
53 void* args_dbl[5];
54 ffi_type* cls_struct_fields[5];
55 ffi_type cls_struct_type;
56 ffi_type* dbl_arg_types[5];
57
58 struct cls_struct_7byte g_dbl = { 127, 120, 1, 254 };
59 struct cls_struct_7byte f_dbl = { 12, 128, 9, 255 };
60 struct cls_struct_7byte res_dbl;
61
62 cls_struct_type.size = 0;
63 cls_struct_type.alignment = 0;
64 cls_struct_type.type = FFI_TYPE_STRUCT;
65 cls_struct_type.elements = cls_struct_fields;
66
67 cls_struct_fields[0] = &ffi_type_ushort;
68 cls_struct_fields[1] = &ffi_type_ushort;
69 cls_struct_fields[2] = &ffi_type_uchar;
70 cls_struct_fields[3] = &ffi_type_ushort;
71 cls_struct_fields[4] = NULL;
72
73 dbl_arg_types[0] = &cls_struct_type;
74 dbl_arg_types[1] = &cls_struct_type;
75 dbl_arg_types[2] = NULL;
76
77 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
78 dbl_arg_types) == FFI_OK);
79
80 args_dbl[0] = &g_dbl;
81 args_dbl[1] = &f_dbl;
82 args_dbl[2] = NULL;
83
84 ffi_call(&cif, FFI_FN(cls_struct_7byte_fn), &res_dbl, args_dbl);
85 /* { dg-output "127 120 1 254 12 128 9 255: 139 248 10 509" } */
86 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
87 /* { dg-output "\nres: 139 248 10 509" } */
88
89 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_7byte_gn, NULL, code) == FFI_OK);
90
91 res_dbl = ((cls_struct_7byte(*)(cls_struct_7byte, cls_struct_7byte))(code))(g_dbl, f_dbl);
92 /* { dg-output "\n127 120 1 254 12 128 9 255: 139 248 10 509" } */
93 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
94 /* { dg-output "\nres: 139 248 10 509" } */
95
96 exit(0);
97}
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_7byte_fn
cls_struct_7byte cls_struct_7byte_fn(struct cls_struct_7byte a1, struct cls_struct_7byte a2)
Definition: cls_7byte.c:18
main
int main(void)
Definition: cls_7byte.c:48
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_7byte
Definition: cls_7_1_byte.c:11
cls_struct_7byte::b
unsigned short b
Definition: cls_7byte.c:13
cls_struct_7byte::a
unsigned short a
Definition: cls_7byte.c:12
cls_struct_7byte::c
unsigned char c
Definition: cls_7_1_byte.c:14
cls_struct_7byte::d
unsigned char d
Definition: cls_7_1_byte.c:15
cls_struct_7byte::d
unsigned short d
Definition: cls_7byte.c:15
cls_struct_7byte::a
unsigned char a
Definition: cls_7_1_byte.c:12
cls_struct_7byte::b
unsigned char b
Definition: cls_7_1_byte.c:13
code
Definition: inftree9.h:24