shotgun/external_libs/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 } */
   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 __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 #ifndef USING_MMAP
  76   static ffi_closure cl;
  77 #endif
  78   ffi_closure *pcl;
  79   void* args_dbl[5];
  80   ffi_type* cls_struct_fields[5];
  81   ffi_type* cls_struct_fields1[5];
  82   ffi_type* cls_struct_fields2[5];
  83   ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
  84   ffi_type* dbl_arg_types[5];
  85
  86 #ifdef USING_MMAP
  87   pcl = allocate_mmap (sizeof(ffi_closure));
  88 #else
  89   pcl = &cl;
  90 #endif
  91
  92   cls_struct_type.size = 0;
  93   cls_struct_type.alignment = 0;
  94   cls_struct_type.type = FFI_TYPE_STRUCT;
  95   cls_struct_type.elements = cls_struct_fields;
  96
  97   cls_struct_type1.size = 0;
  98   cls_struct_type1.alignment = 0;
  99   cls_struct_type1.type = FFI_TYPE_STRUCT;
 100   cls_struct_type1.elements = cls_struct_fields1;
 101
 102   cls_struct_type2.size = 0;
 103   cls_struct_type2.alignment = 0;
 104   cls_struct_type2.type = FFI_TYPE_STRUCT;
 105   cls_struct_type2.elements = cls_struct_fields2;
 106
 107   struct cls_struct_16byte1 e_dbl = { 9.0, 2.0, 6};
 108   struct cls_struct_16byte2 f_dbl = { 1, 2.0, 3.0};
 109   struct cls_struct_combined g_dbl = {{4.0, 5.0, 6},
 110                                       {3, 1.0, 8.0}};
 111   struct cls_struct_16byte1 h_dbl = { 3.0, 2.0, 4};
 112   struct cls_struct_combined res_dbl;
 113
 114   cls_struct_fields[0] = &ffi_type_double;
 115   cls_struct_fields[1] = &ffi_type_float;
 116   cls_struct_fields[2] = &ffi_type_sint;
 117   cls_struct_fields[3] = NULL;
 118
 119   cls_struct_fields1[0] = &ffi_type_sint;
 120   cls_struct_fields1[1] = &ffi_type_double;
 121   cls_struct_fields1[2] = &ffi_type_float;
 122   cls_struct_fields1[3] = NULL;
 123
 124   cls_struct_fields2[0] = &cls_struct_type;
 125   cls_struct_fields2[1] = &cls_struct_type1;
 126   cls_struct_fields2[2] = NULL;
 127
 128
 129   dbl_arg_types[0] = &cls_struct_type;
 130   dbl_arg_types[1] = &cls_struct_type1;
 131   dbl_arg_types[2] = &cls_struct_type2;
 132   dbl_arg_types[3] = &cls_struct_type;
 133   dbl_arg_types[4] = NULL;
 134
 135   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, &cls_struct_type2,
 136                      dbl_arg_types) == FFI_OK);
 137
 138   args_dbl[0] = &e_dbl;
 139   args_dbl[1] = &f_dbl;
 140   args_dbl[2] = &g_dbl;
 141   args_dbl[3] = &h_dbl;
 142   args_dbl[4] = NULL;
 143
 144   ffi_call(&cif, FFI_FN(cls_struct_combined_fn), &res_dbl, args_dbl);
 145   /* { dg-output "9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
 146   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
 147   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
 148   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
 149   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
 150   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
 151   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
 152
 153   CHECK(ffi_prep_closure(pcl, &cif, cls_struct_combined_gn, NULL) == FFI_OK);
 154
 155   res_dbl = ((cls_struct_combined(*)(cls_struct_16byte1,
 156                                      cls_struct_16byte2,
 157                                      cls_struct_combined,
 158                                      cls_struct_16byte1))
 159              (pcl))(e_dbl, f_dbl, g_dbl, h_dbl);
 160   /* { dg-output "\n9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13" } */
 161   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
 162   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
 163   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
 164   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
 165   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
 166   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
 167   //  CHECK( 1 == 0);
 168   exit(0);
 169 }