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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 
11 typedef 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 
cls_struct_7byte_fn(struct cls_struct_7byte a1,struct cls_struct_7byte a2)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 
35 static void
cls_struct_7byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)36 cls_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 
main(void)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 }
98