Home | History | Annotate | Download | only in libffi.call
      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 (at) 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 {
     32   struct cls_struct_combined result;
     33 
     34   result.d.a = b0.a + b1.dd + b2.d.a;
     35   result.d.b = b0.b + b1.ff + b2.d.b;
     36   result.d.c = b0.c + b1.ii + b2.d.c;
     37   result.e.ii = b0.c + b1.ii + b2.e.ii;
     38   result.e.dd = b0.a + b1.dd + b2.e.dd;
     39   result.e.ff = b0.b + b1.ff + b2.e.ff;
     40 
     41   printf("%g %g %d %d %g %g %g %g %d %d %g %g: %g %g %d %d %g %g\n",
     42 	 b0.a, b0.b, b0.c,
     43 	 b1.ii, b1.dd, b1.ff,
     44 	 b2.d.a, b2.d.b, b2.d.c,
     45 	 b2.e.ii, b2.e.dd, b2.e.ff,
     46 	 result.d.a, result.d.b, result.d.c,
     47 	 result.e.ii, result.e.dd, result.e.ff);
     48 
     49   return result;
     50 }
     51 
     52 static void
     53 cls_struct_combined_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
     54 		       void* userdata __UNUSED__)
     55 {
     56   struct cls_struct_16byte1 b0;
     57   struct cls_struct_16byte2 b1;
     58   struct cls_struct_combined b2;
     59 
     60   b0 = *(struct cls_struct_16byte1*)(args[0]);
     61   b1 = *(struct cls_struct_16byte2*)(args[1]);
     62   b2 = *(struct cls_struct_combined*)(args[2]);
     63 
     64 
     65   *(cls_struct_combined*)resp = cls_struct_combined_fn(b0, b1, b2);
     66 }
     67 
     68 int main (void)
     69 {
     70   ffi_cif cif;
     71 #ifndef USING_MMAP
     72   static ffi_closure cl;
     73 #endif
     74   ffi_closure *pcl;
     75   void* args_dbl[5];
     76   ffi_type* cls_struct_fields[5];
     77   ffi_type* cls_struct_fields1[5];
     78   ffi_type* cls_struct_fields2[5];
     79   ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2;
     80   ffi_type* dbl_arg_types[5];
     81 
     82 #ifdef USING_MMAP
     83   pcl = allocate_mmap (sizeof(ffi_closure));
     84 #else
     85   pcl = &cl;
     86 #endif
     87 
     88   cls_struct_type.size = 0;
     89   cls_struct_type.alignment = 0;
     90   cls_struct_type.type = FFI_TYPE_STRUCT;
     91   cls_struct_type.elements = cls_struct_fields;
     92 
     93   cls_struct_type1.size = 0;
     94   cls_struct_type1.alignment = 0;
     95   cls_struct_type1.type = FFI_TYPE_STRUCT;
     96   cls_struct_type1.elements = cls_struct_fields1;
     97 
     98   cls_struct_type2.size = 0;
     99   cls_struct_type2.alignment = 0;
    100   cls_struct_type2.type = FFI_TYPE_STRUCT;
    101   cls_struct_type2.elements = cls_struct_fields2;
    102 
    103   struct cls_struct_16byte1 e_dbl = { 9.0, 2.0, 6};
    104   struct cls_struct_16byte2 f_dbl = { 1, 2.0, 3.0};
    105   struct cls_struct_combined g_dbl = {{4.0, 5.0, 6},
    106 				      {3, 1.0, 8.0}};
    107   struct cls_struct_combined res_dbl;
    108 
    109   cls_struct_fields[0] = &ffi_type_double;
    110   cls_struct_fields[1] = &ffi_type_float;
    111   cls_struct_fields[2] = &ffi_type_sint;
    112   cls_struct_fields[3] = NULL;
    113 
    114   cls_struct_fields1[0] = &ffi_type_sint;
    115   cls_struct_fields1[1] = &ffi_type_double;
    116   cls_struct_fields1[2] = &ffi_type_float;
    117   cls_struct_fields1[3] = NULL;
    118 
    119   cls_struct_fields2[0] = &cls_struct_type;
    120   cls_struct_fields2[1] = &cls_struct_type1;
    121   cls_struct_fields2[2] = NULL;
    122 
    123 
    124   dbl_arg_types[0] = &cls_struct_type;
    125   dbl_arg_types[1] = &cls_struct_type1;
    126   dbl_arg_types[2] = &cls_struct_type2;
    127   dbl_arg_types[3] = NULL;
    128 
    129   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type2,
    130 		     dbl_arg_types) == FFI_OK);
    131 
    132   args_dbl[0] = &e_dbl;
    133   args_dbl[1] = &f_dbl;
    134   args_dbl[2] = &g_dbl;
    135   args_dbl[3] = NULL;
    136 
    137   ffi_call(&cif, FFI_FN(cls_struct_combined_fn), &res_dbl, args_dbl);
    138   /* { dg-output "9 2 6 1 2 3 4 5 6 3 1 8: 15 10 13 10 12 13" } */
    139   CHECK( res_dbl.d.a == (e_dbl.a + f_dbl.dd + g_dbl.d.a));
    140   CHECK( res_dbl.d.b == (e_dbl.b + f_dbl.ff + g_dbl.d.b));
    141   CHECK( res_dbl.d.c == (e_dbl.c + f_dbl.ii + g_dbl.d.c));
    142   CHECK( res_dbl.e.ii == (e_dbl.c + f_dbl.ii + g_dbl.e.ii));
    143   CHECK( res_dbl.e.dd == (e_dbl.a + f_dbl.dd + g_dbl.e.dd));
    144   CHECK( res_dbl.e.ff == (e_dbl.b + f_dbl.ff + g_dbl.e.ff));
    145 
    146   CHECK(ffi_prep_closure(pcl, &cif, cls_struct_combined_gn, NULL) == FFI_OK);
    147 
    148   res_dbl = ((cls_struct_combined(*)(cls_struct_16byte1,
    149 				     cls_struct_16byte2,
    150 				     cls_struct_combined))
    151 	     (pcl))(e_dbl, f_dbl, g_dbl);
    152   /* { dg-output "\n9 2 6 1 2 3 4 5 6 3 1 8: 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   exit(0);
    160 }
    161