libffi/testsuite/libffi.closures/cls_multi_ushortchar.c

   1 /* Area:        ffi_call, closure_call
   2    Purpose:     Check passing of multiple unsigned short/char values.
   3    Limitations: none.
   4    PR:          PR13221.
   5    Originator:  <andreast@gcc.gnu.org> 20031129  */
   6
   7 /* { dg-do run } */
   8 #include "ffitest.h"
   9
  10 static unsigned short test_func_fn(unsigned char a1, unsigned short a2,
  11                             unsigned char a3, unsigned short a4)
  12 {
  13   unsigned short result;
  14
  15   result = a1 + a2 + a3 + a4;
  16
  17   printf("%d %d %d %d: %d\n", a1, a2, a3, a4, result);
  18
  19   return result;
  20
  21 }
  22
  23 static void test_func_gn(ffi_cif *cif __UNUSED__, void *rval, void **avals,
  24                          void *data __UNUSED__)
  25 {
  26   unsigned char a1, a3;
  27   unsigned short a2, a4;
  28
  29   a1 = *(unsigned char *)avals[0];
  30   a2 = *(unsigned short *)avals[1];
  31   a3 = *(unsigned char *)avals[2];
  32   a4 = *(unsigned short *)avals[3];
  33
  34   *(ffi_arg *)rval = test_func_fn(a1, a2, a3, a4);
  35
  36 }
  37
  38 typedef unsigned short (*test_type)(unsigned char, unsigned short,
  39                                    unsigned char, unsigned short);
  40
  41 int main (void)
  42 {
  43   ffi_cif cif;
  44   void *code;
  45   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  46   void * args_dbl[5];
  47   ffi_type * cl_arg_types[5];
  48   ffi_arg res_call;
  49   unsigned char a, c;
  50   unsigned short b, d, res_closure;
  51
  52   a = 1;
  53   b = 2;
  54   c = 127;
  55   d = 128;
  56
  57   args_dbl[0] = &a;
  58   args_dbl[1] = &b;
  59   args_dbl[2] = &c;
  60   args_dbl[3] = &d;
  61   args_dbl[4] = NULL;
  62
  63   cl_arg_types[0] = &ffi_type_uchar;
  64   cl_arg_types[1] = &ffi_type_ushort;
  65   cl_arg_types[2] = &ffi_type_uchar;
  66   cl_arg_types[3] = &ffi_type_ushort;
  67   cl_arg_types[4] = NULL;
  68
  69   /* Initialize the cif */
  70   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
  71                      &ffi_type_ushort, cl_arg_types) == FFI_OK);
  72
  73   ffi_call(&cif, FFI_FN(test_func_fn), &res_call, args_dbl);
  74   /* { dg-output "1 2 127 128: 258" } */
  75   printf("res: %d\n", (unsigned short)res_call);
  76   /* { dg-output "\nres: 258" } */
  77
  78   CHECK(ffi_prep_closure_loc(pcl, &cif, test_func_gn, NULL, code)  == FFI_OK);
  79
  80   res_closure = (*((test_type)code))(1, 2, 127, 128);
  81   /* { dg-output "\n1 2 127 128: 258" } */
  82   printf("res: %d\n", res_closure);
  83   /* { dg-output "\nres: 258" } */
  84
  85   exit(0);
  86 }