libffi/testsuite/libffi.call/cls_align_uint64.c

   1 /* Area:        ffi_call, closure_call
   2    Purpose:     Check structure alignment of uint64.
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  <hos@tamanegi.org> 20031203      */
   6
   7
   8 /* { dg-do run } */
   9 /* { dg-options "-Wno-format" { target alpha*-dec-osf* } } */
  10 #include "ffitest.h"
  11
  12 typedef struct cls_struct_align {
  13   unsigned char a;
  14   unsigned long long b;
  15   unsigned char c;
  16 } cls_struct_align;
  17
  18 cls_struct_align cls_struct_align_fn(struct cls_struct_align a1,
  19                             struct cls_struct_align a2)
  20 {
  21   struct cls_struct_align result;
  22
  23   result.a = a1.a + a2.a;
  24   result.b = a1.b + a2.b;
  25   result.c = a1.c + a2.c;
  26
  27   printf("%d %" PRIdLL " %d %d %" PRIdLL " %d: %d %" PRIdLL " %d\n", a1.a, a1.b, a1.c, a2.a, a2.b, a2.c, result.a, result.b, result.c);
  28
  29   return  result;
  30 }
  31
  32 static void
  33 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
  34                     void* userdata __UNUSED__)
  35 {
  36
  37   struct cls_struct_align a1, a2;
  38
  39   a1 = *(struct cls_struct_align*)(args[0]);
  40   a2 = *(struct cls_struct_align*)(args[1]);
  41
  42   *(cls_struct_align*)resp = cls_struct_align_fn(a1, a2);
  43 }
  44
  45 int main (void)
  46 {
  47   ffi_cif cif;
  48   void *code;
  49   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  50   void* args_dbl[5];
  51   ffi_type* cls_struct_fields[4];
  52   ffi_type cls_struct_type;
  53   ffi_type* dbl_arg_types[5];
  54
  55   struct cls_struct_align g_dbl = { 12, 4951, 127 };
  56   struct cls_struct_align f_dbl = { 1, 9320, 13 };
  57   struct cls_struct_align res_dbl;
  58
  59   cls_struct_type.size = 0;
  60   cls_struct_type.alignment = 0;
  61   cls_struct_type.type = FFI_TYPE_STRUCT;
  62   cls_struct_type.elements = cls_struct_fields;
  63
  64   cls_struct_fields[0] = &ffi_type_uchar;
  65   cls_struct_fields[1] = &ffi_type_uint64;
  66   cls_struct_fields[2] = &ffi_type_uchar;
  67   cls_struct_fields[3] = NULL;
  68
  69   dbl_arg_types[0] = &cls_struct_type;
  70   dbl_arg_types[1] = &cls_struct_type;
  71   dbl_arg_types[2] = NULL;
  72
  73   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
  74                      dbl_arg_types) == FFI_OK);
  75
  76   args_dbl[0] = &g_dbl;
  77   args_dbl[1] = &f_dbl;
  78   args_dbl[2] = NULL;
  79
  80   ffi_call(&cif, FFI_FN(cls_struct_align_fn), &res_dbl, args_dbl);
  81   /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */
  82   printf("res: %d %" PRIdLL " %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
  83   /* { dg-output "\nres: 13 14271 140" } */
  84
  85   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK);
  86
  87   res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl);
  88   /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */
  89   printf("res: %d %" PRIdLL " %d\n", res_dbl.a, res_dbl.b, res_dbl.c);
  90   /* { dg-output "\nres: 13 14271 140" } */
  91
  92   exit(0);
  93 }