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> 20030828	 */
       7  
       8  /* { dg-do run } */
       9  #include "ffitest.h"
      10  
      11  typedef struct cls_struct_7byte {
      12    unsigned short a;
      13    unsigned short b;
      14    unsigned char c;
      15    unsigned short d;
      16  } cls_struct_7byte;
      17  
      18  static cls_struct_7byte cls_struct_7byte_fn(struct cls_struct_7byte a1,
      19  			    struct cls_struct_7byte a2)
      20  {
      21    struct cls_struct_7byte result;
      22  
      23    result.a = a1.a + a2.a;
      24    result.b = a1.b + a2.b;
      25    result.c = a1.c + a2.c;
      26    result.d = a1.d + a2.d;
      27  
      28    printf("%d %d %d %d %d %d %d %d: %d %d %d %d\n", a1.a, a1.b, a1.c, a1.d,
      29  	 a2.a, a2.b, a2.c, a2.d,
      30  	 result.a, result.b, result.c, result.d);
      31  
      32    return  result;
      33  }
      34  
      35  static void
      36  cls_struct_7byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
      37  		    void* userdata __UNUSED__)
      38  {
      39  
      40    struct cls_struct_7byte a1, a2;
      41  
      42    a1 = *(struct cls_struct_7byte*)(args[0]);
      43    a2 = *(struct cls_struct_7byte*)(args[1]);
      44  
      45    *(cls_struct_7byte*)resp = cls_struct_7byte_fn(a1, a2);
      46  }
      47  
      48  int main (void)
      49  {
      50    ffi_cif cif;
      51    void *code;
      52    ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
      53    void* args_dbl[5];
      54    ffi_type* cls_struct_fields[5];
      55    ffi_type cls_struct_type;
      56    ffi_type* dbl_arg_types[5];
      57  
      58    struct cls_struct_7byte g_dbl = { 127, 120, 1, 254 };
      59    struct cls_struct_7byte f_dbl = { 12, 128, 9, 255 };
      60    struct cls_struct_7byte res_dbl;
      61  
      62    cls_struct_type.size = 0;
      63    cls_struct_type.alignment = 0;
      64    cls_struct_type.type = FFI_TYPE_STRUCT;
      65    cls_struct_type.elements = cls_struct_fields;
      66  
      67    cls_struct_fields[0] = &ffi_type_ushort;
      68    cls_struct_fields[1] = &ffi_type_ushort;
      69    cls_struct_fields[2] = &ffi_type_uchar;
      70    cls_struct_fields[3] = &ffi_type_ushort;
      71    cls_struct_fields[4] = NULL;
      72  
      73    dbl_arg_types[0] = &cls_struct_type;
      74    dbl_arg_types[1] = &cls_struct_type;
      75    dbl_arg_types[2] = NULL;
      76  
      77    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
      78  		     dbl_arg_types) == FFI_OK);
      79  
      80    args_dbl[0] = &g_dbl;
      81    args_dbl[1] = &f_dbl;
      82    args_dbl[2] = NULL;
      83  
      84    ffi_call(&cif, FFI_FN(cls_struct_7byte_fn), &res_dbl, args_dbl);
      85    /* { dg-output "127 120 1 254 12 128 9 255: 139 248 10 509" } */
      86    printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
      87    /* { dg-output "\nres: 139 248 10 509" } */
      88  
      89    CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_7byte_gn, NULL, code) == FFI_OK);
      90  
      91    res_dbl = ((cls_struct_7byte(*)(cls_struct_7byte, cls_struct_7byte))(code))(g_dbl, f_dbl);
      92    /* { dg-output "\n127 120 1 254 12 128 9 255: 139 248 10 509" } */
      93    printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d);
      94    /* { dg-output "\nres: 139 248 10 509" } */
      95  
      96    exit(0);
      97  }