shotgun/external_libs/libffi/testsuite/libffi.call/cls_12byte.c

   1 /* Area:        ffi_call, closure_call
   2    Purpose:     Check structure passing with different structure size.
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  <andreast@gcc.gnu.org> 20030828  */
   6
   7 /* { dg-do run } */
   8 #include "ffitest.h"
   9
  10 typedef struct cls_struct_12byte {
  11   int a;
  12   int b;
  13   int c;
  14 } cls_struct_12byte;
  15
  16 cls_struct_12byte cls_struct_12byte_fn(struct cls_struct_12byte b1,
  17                             struct cls_struct_12byte b2)
  18 {
  19   struct cls_struct_12byte result;
  20
  21   result.a = b1.a + b2.a;
  22   result.b = b1.b + b2.b;
  23   result.c = b1.c + b2.c;
  24
  25   printf("%d %d %d %d %d %d: %d %d %d\n", b1.a, b1.b, b1.c, b2.a, b2.b, b2.c,
  26          result.a, result.b, result.c);
  27
  28   return result;
  29 }
  30
  31 static void cls_struct_12byte_gn(ffi_cif* cif __UNUSED__, void* resp,
  32                                  void** args , void* userdata __UNUSED__)
  33 {
  34   struct cls_struct_12byte b1, b2;
  35
  36   b1 = *(struct cls_struct_12byte*)(args[0]);
  37   b2 = *(struct cls_struct_12byte*)(args[1]);
  38
  39   *(cls_struct_12byte*)resp = cls_struct_12byte_fn(b1, b2);
  40 }
  41
  42 int main (void)
  43 {
  44   ffi_cif cif;
  45 #ifndef USING_MMAP
  46   static ffi_closure cl;
  47 #endif
  48   ffi_closure *pcl;
  49   void* args_dbl[5];
  50   ffi_type* cls_struct_fields[4];
  51   ffi_type cls_struct_type;
  52   ffi_type* dbl_arg_types[5];
  53
  54 #ifdef USING_MMAP
  55   pcl = allocate_mmap (sizeof(ffi_closure));
  56 #else
  57   pcl = &cl;
  58 #endif
  59
  60   cls_struct_type.size = 0;
  61   cls_struct_type.alignment = 0;
  62   cls_struct_type.type = FFI_TYPE_STRUCT;
  63   cls_struct_type.elements = cls_struct_fields;
  64
  65   struct cls_struct_12byte h_dbl = { 7, 4, 9 };
  66   struct cls_struct_12byte j_dbl = { 1, 5, 3 };
  67   struct cls_struct_12byte res_dbl;
  68
  69   cls_struct_fields[0] = &ffi_type_sint;
  70   cls_struct_fields[1] = &ffi_type_sint;
  71   cls_struct_fields[2] = &ffi_type_sint;
  72   cls_struct_fields[3] = NULL;
  73
  74   dbl_arg_types[0] = &cls_struct_type;
  75   dbl_arg_types[1] = &cls_struct_type;
  76   dbl_arg_types[2] = NULL;
  77
  78   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
  79                      dbl_arg_types) == FFI_OK);
  80
  81   args_dbl[0] = &h_dbl;
  82   args_dbl[1] = &j_dbl;
  83   args_dbl[2] = NULL;
  84
  85   ffi_call(&cif, FFI_FN(cls_struct_12byte_fn), &res_dbl, args_dbl);
  86   /* { dg-output "7 4 9 1 5 3: 8 9 12" } */
  87   printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
  88   /* { dg-output "\nres: 8 9 12" } */
  89
  90   CHECK(ffi_prep_closure(pcl, &cif, cls_struct_12byte_gn, NULL) == FFI_OK);
  91
  92   res_dbl.a = 0;
  93   res_dbl.b = 0;
  94   res_dbl.c = 0;
  95
  96   res_dbl = ((cls_struct_12byte(*)(cls_struct_12byte, cls_struct_12byte))(pcl))(h_dbl, j_dbl);
  97   /* { dg-output "\n7 4 9 1 5 3: 8 9 12" } */
  98   printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
  99   /* { dg-output "\nres: 8 9 12" } */
 100
 101   exit(0);
 102 }