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_5byte {
      12    unsigned char a;
      13    unsigned char b;
      14    unsigned char c;
      15    unsigned char d;
      16    unsigned char e;
      17  } cls_struct_5byte;
      18  
      19  static cls_struct_5byte cls_struct_5byte_fn(struct cls_struct_5byte a1,
      20  			    struct cls_struct_5byte a2)
      21  {
      22    struct cls_struct_5byte result;
      23  
      24    result.a = a1.a + a2.a;
      25    result.b = a1.b + a2.b;
      26    result.c = a1.c + a2.c;
      27    result.d = a1.d + a2.d;
      28    result.e = a1.e + a2.e;
      29  
      30    printf("%d %d %d %d %d %d %d %d %d %d: %d %d %d %d %d\n",
      31  	 a1.a, a1.b, a1.c, a1.d, a1.e,
      32  	 a2.a, a2.b, a2.c, a2.d, a2.e,
      33  	 result.a, result.b, result.c, result.d, result.e);
      34  
      35    return  result;
      36  }
      37  
      38  static void
      39  cls_struct_5byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      40  		    void* userdata __UNUSED__)
      41  {
      42  
      43    struct cls_struct_5byte a1, a2;
      44  
      45    a1 = *(struct cls_struct_5byte*)(args[0]);
      46    a2 = *(struct cls_struct_5byte*)(args[1]);
      47  
      48    *(cls_struct_5byte*)resp = cls_struct_5byte_fn(a1, a2);
      49  }
      50  
      51  int main (void)
      52  {
      53    ffi_cif cif;
      54    void *code;
      55    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      56    void* args_dbl[5];
      57    ffi_type* cls_struct_fields[6];
      58    ffi_type cls_struct_type;
      59    ffi_type* dbl_arg_types[5];
      60  
      61    struct cls_struct_5byte g_dbl = { 127, 120, 1, 3, 4 };
      62    struct cls_struct_5byte f_dbl = { 12, 128, 9, 3, 4 };
      63    struct cls_struct_5byte res_dbl = { 0, 0, 0, 0, 0 };
      64  
      65    cls_struct_type.size = 0;
      66    cls_struct_type.alignment = 0;
      67    cls_struct_type.type = FFI_TYPE_STRUCT;
      68    cls_struct_type.elements = cls_struct_fields;
      69  
      70    cls_struct_fields[0] = &ffi_type_uchar;
      71    cls_struct_fields[1] = &ffi_type_uchar;
      72    cls_struct_fields[2] = &ffi_type_uchar;
      73    cls_struct_fields[3] = &ffi_type_uchar;
      74    cls_struct_fields[4] = &ffi_type_uchar;
      75    cls_struct_fields[5] = NULL;
      76  
      77    dbl_arg_types[0] = &cls_struct_type;
      78    dbl_arg_types[1] = &cls_struct_type;
      79    dbl_arg_types[2] = NULL;
      80  
      81    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      82  		     dbl_arg_types) == FFI_OK);
      83  
      84    args_dbl[0] = &g_dbl;
      85    args_dbl[1] = &f_dbl;
      86    args_dbl[2] = NULL;
      87  
      88    ffi_call(&cif, FFI_FN(cls_struct_5byte_fn), &res_dbl, args_dbl);
      89    /* { dg-output "127 120 1 3 4 12 128 9 3 4: 139 248 10 6 8" } */
      90    printf("res: %d %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
      91  	 res_dbl.d, res_dbl.e);
      92    /* { dg-output "\nres: 139 248 10 6 8" } */
      93  
      94    res_dbl.a = 0;
      95    res_dbl.b = 0;
      96    res_dbl.c = 0;
      97    res_dbl.d = 0;
      98    res_dbl.e = 0;
      99  
     100    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_5byte_gn, NULL, code) == FFI_OK);
     101  
     102    res_dbl = ((cls_struct_5byte(*)(cls_struct_5byte, cls_struct_5byte))(code))(g_dbl, f_dbl);
     103    /* { dg-output "\n127 120 1 3 4 12 128 9 3 4: 139 248 10 6 8" } */
     104    printf("res: %d %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c,
     105  	 res_dbl.d, res_dbl.e);
     106    /* { dg-output "\nres: 139 248 10 6 8" } */
     107  
     108    exit(0);
     109  }