/js/src/ctypes/libffi/testsuite/libffi.call/cls_sint.c

 1/* Area:	closure_call
 2   Purpose:	Check return value sint32.
 3   Limitations:	none.
 4   PR:		none.
 5   Originator:	<andreast@gcc.gnu.org> 20031108	 */
 6
 7/* { dg-do run } */
 8#include "ffitest.h"
 9
10static void cls_ret_sint_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
11			    void* userdata __UNUSED__)
12{
13  *(ffi_arg*)resp = *(signed int *)args[0];
14  printf("%d: %d\n",*(signed int *)args[0],
15	 (int)*(ffi_arg *)(resp));
16}
17typedef signed int (*cls_ret_sint)(signed int);
18
19int main (void)
20{
21  ffi_cif cif;
22  void *code;
23  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
24  ffi_type * cl_arg_types[2];
25  signed int res;
26
27  cl_arg_types[0] = &ffi_type_sint;
28  cl_arg_types[1] = NULL;
29
30  /* Initialize the cif */
31  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
32		     &ffi_type_sint, cl_arg_types) == FFI_OK);
33
34  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_sint_fn, NULL, code)  == FFI_OK);
35
36  res = (*((cls_ret_sint)code))(65534);
37  /* { dg-output "65534: 65534" } */
38  printf("res: %d\n",res);
39  /* { dg-output "\nres: 65534" } */
40
41  exit(0);
42}