Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_6byte.c Source File

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

cls_6byte.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
9/* { dg-do run } */
10#include "ffitest.h"
11
12typedef struct cls_struct_6byte {
13 unsigned short a;
14 unsigned short b;
15 unsigned char c;
16 unsigned char d;
17} cls_struct_6byte;
18
19 cls_struct_6byte cls_struct_6byte_fn(struct cls_struct_6byte a1,
20 struct cls_struct_6byte a2)
21{
22 struct cls_struct_6byte 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
29 printf("%d %d %d %d %d %d %d %d: %d %d %d %d\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
33 return result;
34}
35
36static void
37cls_struct_6byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
38 void* userdata __UNUSED__)
39{
40
41 struct cls_struct_6byte a1, a2;
42
43 a1 = *(struct cls_struct_6byte*)(args[0]);
44 a2 = *(struct cls_struct_6byte*)(args[1]);
45
46 *(cls_struct_6byte*)resp = cls_struct_6byte_fn(a1, a2);
47}
48
49 int main (void)
50{
51 ffi_cif cif;
52 void *code;
53 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
54 void* args_dbl[5];
55 ffi_type* cls_struct_fields[5];
56 ffi_type cls_struct_type;
57 ffi_type* dbl_arg_types[5];
58
59 struct cls_struct_6byte g_dbl = { 127, 120, 1, 128 };
60 struct cls_struct_6byte f_dbl = { 12, 128, 9, 127 };
61 struct cls_struct_6byte res_dbl;
62
63 cls_struct_type.size = 0;
64 cls_struct_type.alignment = 0;
65 cls_struct_type.type = FFI_TYPE_STRUCT;
66 cls_struct_type.elements = cls_struct_fields;
67
68 cls_struct_fields[0] = &ffi_type_ushort;
69 cls_struct_fields[1] = &ffi_type_ushort;
70 cls_struct_fields[2] = &ffi_type_uchar;
71 cls_struct_fields[3] = &ffi_type_uchar;
72 cls_struct_fields[4] = NULL;
73
74 dbl_arg_types[0] = &cls_struct_type;
75 dbl_arg_types[1] = &cls_struct_type;
76 dbl_arg_types[2] = NULL;
77
78 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
79 dbl_arg_types) == FFI_OK);
80
81 args_dbl[0] = &g_dbl;
82 args_dbl[1] = &f_dbl;
83 args_dbl[2] = NULL;
84
85 ffi_call(&cif, FFI_FN(cls_struct_6byte_fn), &res_dbl, args_dbl);
86 /* { dg-output "127 120 1 128 12 128 9 127: 139 248 10 255" } */
87 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
88 /* { dg-output "\nres: 139 248 10 255" } */
89
90 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_6byte_gn, NULL, code) == FFI_OK);
91
92 res_dbl = ((cls_struct_6byte(*)(cls_struct_6byte, cls_struct_6byte))(code))(g_dbl, f_dbl);
93 /* { dg-output "\n127 120 1 128 12 128 9 127: 139 248 10 255" } */
94 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
95 /* { dg-output "\nres: 139 248 10 255" } */
96
97
98 exit(0);
99}
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_6byte_fn
cls_struct_6byte cls_struct_6byte_fn(struct cls_struct_6byte a1, struct cls_struct_6byte a2)
Definition: cls_6byte.c:19
main
int main(void)
Definition: cls_6byte.c:49
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_6byte
Definition: cls_6_1_byte.c:11
cls_struct_6byte::a
unsigned short a
Definition: cls_6byte.c:13
cls_struct_6byte::c
unsigned char c
Definition: cls_6_1_byte.c:14
cls_struct_6byte::a
unsigned char a
Definition: cls_6_1_byte.c:12
cls_struct_6byte::b
unsigned short b
Definition: cls_6byte.c:14
cls_struct_6byte::d
unsigned char d
Definition: cls_6_1_byte.c:15
cls_struct_6byte::b
unsigned char b
Definition: cls_6_1_byte.c:13
code
Definition: inftree9.h:24