1 /* Area: closure_call 2 Purpose: Check return value schar. 3 Limitations: none. 4 PR: none. 5 Originator: <andreast (at) gcc.gnu.org> 20031108 */ 6 7 8 9 /* { dg-do run } */ 10 #include "ffitest.h" 11 12 static void cls_ret_schar_fn(ffi_cif* cif __UNUSED__, void* resp, void** args, 13 void* userdata __UNUSED__) 14 { 15 *(ffi_arg*)resp = *(signed char *)args[0]; 16 printf("%d: %d\n",*(signed char *)args[0], 17 (int)*(ffi_arg *)(resp)); 18 } 19 typedef signed char (*cls_ret_schar)(signed char); 20 21 int main (void) 22 { 23 ffi_cif cif; 24 #ifndef USING_MMAP 25 static ffi_closure cl; 26 #endif 27 ffi_closure *pcl; 28 ffi_type * cl_arg_types[2]; 29 signed char res; 30 31 #ifdef USING_MMAP 32 pcl = allocate_mmap (sizeof(ffi_closure)); 33 #else 34 pcl = &cl; 35 #endif 36 37 cl_arg_types[0] = &ffi_type_schar; 38 cl_arg_types[1] = NULL; 39 40 /* Initialize the cif */ 41 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, 42 &ffi_type_schar, cl_arg_types) == FFI_OK); 43 44 CHECK(ffi_prep_closure(pcl, &cif, cls_ret_schar_fn, NULL) == FFI_OK); 45 46 res = (*((cls_ret_schar)pcl))(127); 47 /* { dg-output "127: 127" } */ 48 printf("res: %d\n", res); 49 /* { dg-output "\nres: 127" } */ 50 51 exit(0); 52 } 53
