libffi/testsuite/libffi.call/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 { xfail mips*-*-* arm*-*-* strongarm*-*-* xscale*-*-* } } */
   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 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, void* resp, void** args, void* userdata)
  56 {
  57   struct cls_struct_16byte1 b0;
  58   struct cls_struct_16byte2 b1;
  59   struct cls_struct_combined b2;
  60   struct cls_struct_16byte1 b3;
  61
  62   b0 = *(struct cls_struct_16byte1*)(args[0]);
  63   b1 = *(struct cls_struct_16byte2*)(args[1]);
  64   b2 = *(struct cls_struct_combined*)(args[2]);
  65   b3 = *(struct cls_struct_16byte1*)(args[3]);
  66
  67
  68   *(cls_struct_combined*)resp = cls_struct_combined_fn(b0, b1, b2, b3);
  69 }
  70
  71 int main (void)
  72 {
  73   ffi_cif cif;
  74 #ifndef USING_MMAP
  75   static ffi_closure cl;
  76 #endif
  77   ffi_closure *pcl;
  78   void* args_dbl[5];
  79   ffi_type* cls_struct_fields[5];
  80   ffi_type* cls_struct_fields1[5];
  81   ffi_type* cls_struct_fields2[5];
  82   ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
  83   ffi_type* dbl_arg_types[5];
  84
  85 #ifdef USING_MMAP
  86   pcl = allocate_mmap (sizeof(ffi_closure));
  87 #else
  88   pcl = &cl;
  89 #endif
  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   struct cls_struct_16byte1 e_dbl = { 9.0, 2.0, 6};
 107   struct cls_struct_16byte2 f_dbl = { 1, 2.0, 3.0};
 108   struct cls_struct_combined g_dbl = {{4.0, 5.0, 6},
 109                                       {3, 1.0, 8.0}};
 110   struct cls_struct_16byte1 h_dbl = { 3.0, 2.0, 4};
 111   struct cls_struct_combined res_dbl;
 112
 113   cls_struct_fields[0] = &ffi_type_double;
 114   cls_struct_fields[1] = &ffi_type_float;
 115   cls_struct_fields[2] = &ffi_type_uint32;
 116   cls_struct_fields[3] = NULL;
 117
 118   cls_struct_fields1[0] = &ffi_type_uint32;
 119   cls_struct_fields1[1] = &ffi_type_double;
 120   cls_struct_fields1[2] = &ffi_type_float;
 121   cls_struct_fields1[3] = NULL;
 122
 123   cls_struct_fields2[0] = &cls_struct_type;
 124   cls_struct_fields2[1] = &cls_struct_type1;
 125   cls_struct_fields2[2] = NULL;
 126
 127
 128   dbl_arg_types[0] = &cls_struct_type;
 129   dbl_arg_types[1] = &cls_struct_type1;
 130   dbl_arg_types[2] = &cls_struct_type2;
 131   dbl_arg_types[3] = &cls_struct_type;
 132   dbl_arg_types[4] = NULL;
 133
 134   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, &cls_struct_type2,
 135                      dbl_arg_types) == FFI_OK);
 136
 137   args_dbl[0] = &e_dbl;
 138   args_dbl[1] = &f_dbl;
 139   args_dbl[2] = &g_dbl;
 140   args_dbl[3] = &h_dbl;
 141   args_dbl[4] = NULL;
 142
 143   ffi_call(&cif, FFI_FN(cls_struct_combined_fn), &res_dbl, args_dbl);
 144   /* { dg-output "9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
 145   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
 146   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
 147   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
 148   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
 149   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
 150   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
 151
 152   CHECK(ffi_prep_closure(pcl, &cif, cls_struct_combined_gn, NULL) == FFI_OK);
 153
 154   res_dbl = ((cls_struct_combined(*)(cls_struct_16byte1,
 155                                      cls_struct_16byte2,
 156                                      cls_struct_combined,
 157                                      cls_struct_16byte1))
 158              (pcl))(e_dbl, f_dbl, g_dbl, h_dbl);
 159   /* { dg-output "\n9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
 160   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
 161   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
 162   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
 163   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
 164   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
 165   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
 166   //  CHECK( 1 == 0);
 167   exit(0);
 168 }