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