libffi/testsuite/libffi.call/cls_multi_uchar.c

   1 /* Area:        ffi_call, closure_call
   2    Purpose:     Check passing of multiple unsigned 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 unsigned char test_func_fn(unsigned char a1, unsigned char a2,
  11                            unsigned char a3, unsigned char a4)
  12 {
  13   unsigned char 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, a2, a3, a4;
  27
  28   a1 = *(unsigned char *)avals[0];
  29   a2 = *(unsigned char *)avals[1];
  30   a3 = *(unsigned char *)avals[2];
  31   a4 = *(unsigned char *)avals[3];
  32
  33   *(ffi_arg *)rval = test_func_fn(a1, a2, a3, a4);
  34
  35 }
  36
  37 typedef unsigned char (*test_type)(unsigned char, unsigned char,
  38                                    unsigned char, unsigned char);
  39
  40 void test_func(ffi_cif *cif __UNUSED__, void *rval __UNUSED__, void **avals,
  41                void *data __UNUSED__)
  42 {
  43   printf("%d %d %d %d\n", *(unsigned char *)avals[0],
  44          *(unsigned char *)avals[1], *(unsigned char *)avals[2],
  45          *(unsigned char *)avals[3]);
  46 }
  47 int main (void)
  48 {
  49   ffi_cif cif;
  50   void *code;
  51   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  52   void * args_dbl[5];
  53   ffi_type * cl_arg_types[5];
  54   ffi_arg res_call;
  55   unsigned char a, b, c, d, res_closure;
  56
  57   a = 1;
  58   b = 2;
  59   c = 127;
  60   d = 125;
  61
  62   args_dbl[0] = &a;
  63   args_dbl[1] = &b;
  64   args_dbl[2] = &c;
  65   args_dbl[3] = &d;
  66   args_dbl[4] = NULL;
  67
  68   cl_arg_types[0] = &ffi_type_uchar;
  69   cl_arg_types[1] = &ffi_type_uchar;
  70   cl_arg_types[2] = &ffi_type_uchar;
  71   cl_arg_types[3] = &ffi_type_uchar;
  72   cl_arg_types[4] = NULL;
  73
  74   /* Initialize the cif */
  75   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
  76                      &ffi_type_uchar, cl_arg_types) == FFI_OK);
  77
  78   ffi_call(&cif, FFI_FN(test_func_fn), &res_call, args_dbl);
  79   /* { dg-output "1 2 127 125: 255" } */
  80   printf("res: %d\n", (unsigned char)res_call);
  81   /* { dg-output "\nres: 255" } */
  82
  83   CHECK(ffi_prep_closure_loc(pcl, &cif, test_func_gn, NULL, code)  == FFI_OK);
  84
  85   res_closure = (*((test_type)code))(1, 2, 127, 125);
  86   /* { dg-output "\n1 2 127 125: 255" } */
  87   printf("res: %d\n", res_closure);
  88   /* { dg-output "\nres: 255" } */
  89
  90   exit(0);
  91 }