(root)/
gcc-13.2.0/
libffi/
testsuite/
libffi.closures/
nested_struct1.c
       1  /* Area:	ffi_call, closure_call
       2     Purpose:	Check structure passing with different structure size.
       3  		Contains structs as parameter of the struct itself.
       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_16byte1 {
      12    double a;
      13    float b;
      14    int c;
      15  } cls_struct_16byte1;
      16  
      17  typedef struct cls_struct_16byte2 {
      18    int ii;
      19    double dd;
      20    float ff;
      21  } cls_struct_16byte2;
      22  
      23  typedef struct cls_struct_combined {
      24    cls_struct_16byte1 d;
      25    cls_struct_16byte2 e;
      26  } cls_struct_combined;
      27  
      28  static cls_struct_combined cls_struct_combined_fn(struct cls_struct_16byte1 b0,
      29  					   struct cls_struct_16byte2 b1,
      30  					   struct cls_struct_combined b2,
      31  					   struct cls_struct_16byte1 b3)
      32  {
      33    struct cls_struct_combined result;
      34  
      35    result.d.a = b0.a + b1.dd + b2.d.a;
      36    result.d.b = b0.b + b1.ff + b2.d.b;
      37    result.d.c = b0.c + b1.ii + b2.d.c;
      38    result.e.ii = b0.c + b1.ii + b2.e.ii;
      39    result.e.dd = b0.a + b1.dd + b2.e.dd;
      40    result.e.ff = b0.b + b1.ff + b2.e.ff;
      41  
      42    printf("%g %g %d %d %g %g %g %g %d %d %g %g %g %g %d: %g %g %d %d %g %g\n",
      43  	 b0.a, b0.b, b0.c,
      44  	 b1.ii, b1.dd, b1.ff,
      45  	 b2.d.a, b2.d.b, b2.d.c,
      46  	 b2.e.ii, b2.e.dd, b2.e.ff,
      47  	 b3.a, b3.b, b3.c,
      48  	 result.d.a, result.d.b, result.d.c,
      49  	 result.e.ii, result.e.dd, result.e.ff);
      50  
      51    return result;
      52  }
      53  
      54  static void
      55  cls_struct_combined_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      56  		       void* userdata __UNUSED__)
      57  {
      58    struct cls_struct_16byte1 b0;
      59    struct cls_struct_16byte2 b1;
      60    struct cls_struct_combined b2;
      61    struct cls_struct_16byte1 b3;
      62  
      63    b0 = *(struct cls_struct_16byte1*)(args[0]);
      64    b1 = *(struct cls_struct_16byte2*)(args[1]);
      65    b2 = *(struct cls_struct_combined*)(args[2]);
      66    b3 = *(struct cls_struct_16byte1*)(args[3]);
      67  
      68  
      69    *(cls_struct_combined*)resp = cls_struct_combined_fn(b0, b1, b2, b3);
      70  }
      71  
      72  int main (void)
      73  {
      74    ffi_cif cif;
      75    void *code;
      76    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      77    void* args_dbl[5];
      78    ffi_type* cls_struct_fields[5];
      79    ffi_type* cls_struct_fields1[5];
      80    ffi_type* cls_struct_fields2[5];
      81    ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
      82    ffi_type* dbl_arg_types[5];
      83  
      84    struct cls_struct_16byte1 e_dbl = { 9.0, 2.0, 6};
      85    struct cls_struct_16byte2 f_dbl = { 1, 2.0, 3.0};
      86    struct cls_struct_combined g_dbl = {{4.0, 5.0, 6},
      87  				      {3, 1.0, 8.0}};
      88    struct cls_struct_16byte1 h_dbl = { 3.0, 2.0, 4};
      89    struct cls_struct_combined res_dbl;
      90  
      91    cls_struct_type.size = 0;
      92    cls_struct_type.alignment = 0;
      93    cls_struct_type.type = FFI_TYPE_STRUCT;
      94    cls_struct_type.elements = cls_struct_fields;
      95  
      96    cls_struct_type1.size = 0;
      97    cls_struct_type1.alignment = 0;
      98    cls_struct_type1.type = FFI_TYPE_STRUCT;
      99    cls_struct_type1.elements = cls_struct_fields1;
     100  
     101    cls_struct_type2.size = 0;
     102    cls_struct_type2.alignment = 0;
     103    cls_struct_type2.type = FFI_TYPE_STRUCT;
     104    cls_struct_type2.elements = cls_struct_fields2;
     105  
     106    cls_struct_fields[0] = &ffi_type_double;
     107    cls_struct_fields[1] = &ffi_type_float;
     108    cls_struct_fields[2] = &ffi_type_sint;
     109    cls_struct_fields[3] = NULL;
     110  
     111    cls_struct_fields1[0] = &ffi_type_sint;
     112    cls_struct_fields1[1] = &ffi_type_double;
     113    cls_struct_fields1[2] = &ffi_type_float;
     114    cls_struct_fields1[3] = NULL;
     115  
     116    cls_struct_fields2[0] = &cls_struct_type;
     117    cls_struct_fields2[1] = &cls_struct_type1;
     118    cls_struct_fields2[2] = NULL;
     119  
     120  
     121    dbl_arg_types[0] = &cls_struct_type;
     122    dbl_arg_types[1] = &cls_struct_type1;
     123    dbl_arg_types[2] = &cls_struct_type2;
     124    dbl_arg_types[3] = &cls_struct_type;
     125    dbl_arg_types[4] = NULL;
     126  
     127    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, &cls_struct_type2,
     128  		     dbl_arg_types) == FFI_OK);
     129  
     130    args_dbl[0] = &e_dbl;
     131    args_dbl[1] = &f_dbl;
     132    args_dbl[2] = &g_dbl;
     133    args_dbl[3] = &h_dbl;
     134    args_dbl[4] = NULL;
     135  
     136    ffi_call(&cif, FFI_FN(cls_struct_combined_fn), &res_dbl, args_dbl);
     137    /* { dg-output "9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
     138    CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
     139    CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
     140    CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
     141    CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
     142    CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
     143    CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
     144  
     145    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_combined_gn, NULL, code) == FFI_OK);
     146  
     147    res_dbl = ((cls_struct_combined(*)(cls_struct_16byte1,
     148  				     cls_struct_16byte2,
     149  				     cls_struct_combined,
     150  				     cls_struct_16byte1))
     151  	     (code))(e_dbl, f_dbl, g_dbl, h_dbl);
     152    /* { dg-output "\n9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
     153    CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
     154    CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
     155    CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
     156    CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
     157    CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
     158    CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
     159    /*  CHECK( 1 == 0); */
     160    exit(0);
     161  }