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  
      10  /* { dg-do run } */
      11  #include "ffitest.h"
      12  
      13  typedef struct cls_struct_20byte {
      14    int a;
      15    double b;
      16    double c;
      17  } cls_struct_20byte;
      18  
      19  static cls_struct_20byte cls_struct_20byte_fn(struct cls_struct_20byte a1,
      20  			    struct cls_struct_20byte a2)
      21  {
      22    struct cls_struct_20byte result;
      23  
      24    result.a = a1.a + a2.a;
      25    result.b = a1.b + a2.b;
      26    result.c = a1.c + a2.c;
      27  
      28    printf("%d %g %g %d %g %g: %d %g %g\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c,
      29  	 result.a, result.b, result.c);
      30    return result;
      31  }
      32  
      33  static void
      34  cls_struct_20byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      35  		     void* userdata __UNUSED__)
      36  {
      37    struct cls_struct_20byte a1, a2;
      38  
      39    a1 = *(struct cls_struct_20byte*)(args[0]);
      40    a2 = *(struct cls_struct_20byte*)(args[1]);
      41  
      42    *(cls_struct_20byte*)resp = cls_struct_20byte_fn(a1, a2);
      43  }
      44  
      45  int main (void)
      46  {
      47    ffi_cif cif;
      48    void *code;
      49    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      50    void* args_dbl[3];
      51    ffi_type* cls_struct_fields[4];
      52    ffi_type cls_struct_type;
      53    ffi_type* dbl_arg_types[3];
      54  
      55    struct cls_struct_20byte g_dbl = { 1, 2.0, 3.0 };
      56    struct cls_struct_20byte f_dbl = { 4, 5.0, 7.0 };
      57    struct cls_struct_20byte res_dbl;
      58  
      59    cls_struct_type.size = 0;
      60    cls_struct_type.alignment = 0;
      61    cls_struct_type.type = FFI_TYPE_STRUCT;
      62    cls_struct_type.elements = cls_struct_fields;
      63  
      64    cls_struct_fields[0] = &ffi_type_sint;
      65    cls_struct_fields[1] = &ffi_type_double;
      66    cls_struct_fields[2] = &ffi_type_double;
      67    cls_struct_fields[3] = NULL;
      68  
      69    dbl_arg_types[0] = &cls_struct_type;
      70    dbl_arg_types[1] = &cls_struct_type;
      71    dbl_arg_types[2] = NULL;
      72  
      73    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      74  		     dbl_arg_types) == FFI_OK);
      75  
      76    args_dbl[0] = &g_dbl;
      77    args_dbl[1] = &f_dbl;
      78    args_dbl[2] = NULL;
      79  
      80    ffi_call(&cif, FFI_FN(cls_struct_20byte_fn), &res_dbl, args_dbl);
      81    /* { dg-output "1 2 3 4 5 7: 5 7 10" } */
      82    printf("res: %d %g %g\n", res_dbl.a, res_dbl.b, res_dbl.c);
      83    /* { dg-output "\nres: 5 7 10" } */
      84  
      85    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_20byte_gn, NULL, code) == FFI_OK);
      86  
      87    res_dbl = ((cls_struct_20byte(*)(cls_struct_20byte, cls_struct_20byte))(code))(g_dbl, f_dbl);
      88    /* { dg-output "\n1 2 3 4 5 7: 5 7 10" } */
      89    printf("res: %d %g %g\n", res_dbl.a, res_dbl.b, res_dbl.c);
      90    /* { dg-output "\nres: 5 7 10" } */
      91  
      92    exit(0);
      93  }