libffi/testsuite/libffi.call/closure_simple.c

   1 /* Area:        closure_call
   2    Purpose:     Check simple closure handling with all ABIs
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  <twalljava@dev.java.net> */
   6
   7 /* { dg-do run } */
   8 #include "ffitest.h"
   9
  10 static void
  11 closure_test(ffi_cif* cif __UNUSED__, void* resp, void** args, void* userdata)
  12 {
  13   *(ffi_arg*)resp =
  14     (int)*(int *)args[0] + (int)(*(int *)args[1])
  15     + (int)(*(int *)args[2])  + (int)(*(int *)args[3])
  16     + (int)(intptr_t)userdata;
  17
  18   printf("%d %d %d %d: %d\n",
  19          (int)*(int *)args[0], (int)(*(int *)args[1]),
  20          (int)(*(int *)args[2]), (int)(*(int *)args[3]),
  21          (int)*(ffi_arg *)resp);
  22
  23 }
  24
  25 typedef int (ABI_ATTR *closure_test_type0)(int, int, int, int);
  26
  27 int main (void)
  28 {
  29   ffi_cif cif;
  30   void *code;
  31   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  32   ffi_type * cl_arg_types[17];
  33   int res;
  34
  35   cl_arg_types[0] = &ffi_type_uint;
  36   cl_arg_types[1] = &ffi_type_uint;
  37   cl_arg_types[2] = &ffi_type_uint;
  38   cl_arg_types[3] = &ffi_type_uint;
  39   cl_arg_types[4] = NULL;
  40
  41   /* Initialize the cif */
  42   CHECK(ffi_prep_cif(&cif, ABI_NUM, 4,
  43                      &ffi_type_sint, cl_arg_types) == FFI_OK);
  44
  45   CHECK(ffi_prep_closure_loc(pcl, &cif, closure_test,
  46                              (void *) 3 /* userdata */, code) == FFI_OK);
  47
  48   res = (*(closure_test_type0)code)(0, 1, 2, 3);
  49   /* { dg-output "0 1 2 3: 9" } */
  50
  51   printf("res: %d\n",res);
  52   /* { dg-output "\nres: 9" } */
  53
  54   exit(0);
  55 }