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 
12 typedef 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 
cls_struct_6byte_fn(struct cls_struct_6byte a1,struct cls_struct_6byte a2)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 
36 static void
cls_struct_6byte_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)37 cls_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 
main(void)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 }
100