1  /* Area:	ffi_call, closure_call
       2     Purpose:	Check structure passing with different structure size.
       3  		Depending on the ABI. Check overlapping.
       4     Limitations:	none.
       5     PR:		none.
       6     Originator:	<andreast@gcc.gnu.org> 20050708	 */
       7  
       8  /* { dg-do run } */
       9  #include "ffitest.h"
      10  
      11  typedef struct cls_struct_6byte {
      12    unsigned char a;
      13    unsigned char b;
      14    unsigned char c;
      15    unsigned char d;
      16    unsigned char e;
      17    unsigned char f;
      18  } cls_struct_6byte;
      19  
      20  static cls_struct_6byte cls_struct_6byte_fn(struct cls_struct_6byte a1,
      21  			    struct cls_struct_6byte a2)
      22  {
      23    struct cls_struct_6byte result;
      24  
      25    result.a = a1.a + a2.a;
      26    result.b = a1.b + a2.b;
      27    result.c = a1.c + a2.c;
      28    result.d = a1.d + a2.d;
      29    result.e = a1.e + a2.e;
      30    result.f = a1.f + a2.f;
      31  
      32    printf("%d %d %d %d %d %d %d %d %d %d %d %d: %d %d %d %d %d %d\n",
      33  	 a1.a, a1.b, a1.c, a1.d, a1.e, a1.f,
      34  	 a2.a, a2.b, a2.c, a2.d, a2.e, a2.f,
      35  	 result.a, result.b, result.c, result.d, result.e, result.f);
      36  
      37    return  result;
      38  }
      39  
      40  static void
      41  cls_struct_6byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      42  		    void* userdata __UNUSED__)
      43  {
      44  
      45    struct cls_struct_6byte a1, a2;
      46  
      47    a1 = *(struct cls_struct_6byte*)(args[0]);
      48    a2 = *(struct cls_struct_6byte*)(args[1]);
      49  
      50    *(cls_struct_6byte*)resp = cls_struct_6byte_fn(a1, a2);
      51  }
      52  
      53  int main (void)
      54  {
      55    ffi_cif cif;
      56    void *code;
      57    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      58    void* args_dbl[5];
      59    ffi_type* cls_struct_fields[7];
      60    ffi_type cls_struct_type;
      61    ffi_type* dbl_arg_types[5];
      62  
      63    struct cls_struct_6byte g_dbl = { 127, 120, 1, 3, 4, 5 };
      64    struct cls_struct_6byte f_dbl = { 12, 128, 9, 3, 4, 5 };
      65    struct cls_struct_6byte res_dbl = { 0, 0, 0, 0, 0, 0 };
      66  
      67    cls_struct_type.size = 0;
      68    cls_struct_type.alignment = 0;
      69    cls_struct_type.type = FFI_TYPE_STRUCT;
      70    cls_struct_type.elements = cls_struct_fields;
      71  
      72    cls_struct_fields[0] = &ffi_type_uchar;
      73    cls_struct_fields[1] = &ffi_type_uchar;
      74    cls_struct_fields[2] = &ffi_type_uchar;
      75    cls_struct_fields[3] = &ffi_type_uchar;
      76    cls_struct_fields[4] = &ffi_type_uchar;
      77    cls_struct_fields[5] = &ffi_type_uchar;
      78    cls_struct_fields[6] = NULL;
      79  
      80    dbl_arg_types[0] = &cls_struct_type;
      81    dbl_arg_types[1] = &cls_struct_type;
      82    dbl_arg_types[2] = NULL;
      83  
      84    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      85  		     dbl_arg_types) == FFI_OK);
      86  
      87    args_dbl[0] = &g_dbl;
      88    args_dbl[1] = &f_dbl;
      89    args_dbl[2] = NULL;
      90  
      91    ffi_call(&cif, FFI_FN(cls_struct_6byte_fn), &res_dbl, args_dbl);
      92    /* { dg-output "127 120 1 3 4 5 12 128 9 3 4 5: 139 248 10 6 8 10" } */
      93    printf("res: %d %d %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
      94  	 res_dbl.d, res_dbl.e, res_dbl.f);
      95    /* { dg-output "\nres: 139 248 10 6 8 10" } */
      96  
      97    res_dbl.a = 0;
      98    res_dbl.b = 0;
      99    res_dbl.c = 0;
     100    res_dbl.d = 0;
     101    res_dbl.e = 0;
     102    res_dbl.f = 0;
     103  
     104    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_6byte_gn, NULL, code) == FFI_OK);
     105  
     106    res_dbl = ((cls_struct_6byte(*)(cls_struct_6byte, cls_struct_6byte))(code))(g_dbl, f_dbl);
     107    /* { dg-output "\n127 120 1 3 4 5 12 128 9 3 4 5: 139 248 10 6 8 10" } */
     108    printf("res: %d %d %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
     109  	 res_dbl.d, res_dbl.e, res_dbl.f);
     110    /* { dg-output "\nres: 139 248 10 6 8 10" } */
     111  
     112    exit(0);
     113  }