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/js/src/ctypes/libffi/testsuite/libffi.call/cls_5byte.c

http://github.com/zpao/v8monkey
C | 98 lines | 65 code | 22 blank | 11 comment | 2 complexity | 5f0f1fb231975bd192e0caf661b46caf MD5 | raw file
 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
17cls_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
46int 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  cls_struct_type.size = 0;
57  cls_struct_type.alignment = 0;
58  cls_struct_type.type = FFI_TYPE_STRUCT;
59  cls_struct_type.elements = cls_struct_fields;
60
61  struct cls_struct_5byte g_dbl = { 127, 120, 1 };
62  struct cls_struct_5byte f_dbl = { 12, 128, 9 };
63  struct cls_struct_5byte res_dbl = { 0, 0, 0 };
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}