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1 /* Area:	ffi_call, closure_call
2    Purpose:	Check structure alignment of uint32.
3    Limitations:	none.
4    PR:		none.
5    Originator:	<hos@tamanegi.org> 20031203	 */
6 
7 /* { dg-do run } */
8 #include "ffitest.h"
9 
10 typedef struct cls_struct_align {
11   unsigned char a;
12   unsigned int b;
13   unsigned char c;
14 } cls_struct_align;
15 
cls_struct_align_fn(struct cls_struct_align a1,struct cls_struct_align a2)16 cls_struct_align cls_struct_align_fn(struct cls_struct_align a1,
17 			    struct cls_struct_align a2)
18 {
19   struct cls_struct_align result;
20 
21   result.a = a1.a + a2.a;
22   result.b = a1.b + a2.b;
23   result.c = a1.c + a2.c;
24 
25   printf("%d %d %d %d %d %d: %d %d %d\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c, result.a, result.b, result.c);
26 
27   return  result;
28 }
29 
30 static void
cls_struct_align_gn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)31 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
32 		    void* userdata __UNUSED__)
33 {
34 
35   struct cls_struct_align a1, a2;
36 
37   a1 = *(struct cls_struct_align*)(args[0]);
38   a2 = *(struct cls_struct_align*)(args[1]);
39 
40   *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
41 }
42 
main(void)43 int main (void)
44 {
45   ffi_cif cif;
46   void *code;
47   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
48   void* args_dbl[5];
49   ffi_type* cls_struct_fields[4];
50   ffi_type cls_struct_type;
51   ffi_type* dbl_arg_types[5];
52 
53   struct cls_struct_align g_dbl = { 12, 4951, 127 };
54   struct cls_struct_align f_dbl = { 1, 9320, 13 };
55   struct cls_struct_align res_dbl;
56 
57   cls_struct_type.size = 0;
58   cls_struct_type.alignment = 0;
59   cls_struct_type.type = FFI_TYPE_STRUCT;
60   cls_struct_type.elements = cls_struct_fields;
61 
62   cls_struct_fields[0] = &ffi_type_uchar;
63   cls_struct_fields[1] = &ffi_type_uint;
64   cls_struct_fields[2] = &ffi_type_uchar;
65   cls_struct_fields[3] = NULL;
66 
67   dbl_arg_types[0] = &cls_struct_type;
68   dbl_arg_types[1] = &cls_struct_type;
69   dbl_arg_types[2] = NULL;
70 
71   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
72 		     dbl_arg_types) == FFI_OK);
73 
74   args_dbl[0] = &g_dbl;
75   args_dbl[1] = &f_dbl;
76   args_dbl[2] = NULL;
77 
78   ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
79   /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
80   printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
81   /* { dg-output "\nres: 13 14271 140" } */
82 
83   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
84 
85   res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
86   /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
87   printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
88   /* { dg-output "\nres: 13 14271 140" } */
89 
90   exit(0);
91 }
92