1 /* Area: ffi_call 2 Purpose: Check structures. 3 Limitations: none. 4 PR: none. 5 Originator: From the original ffitest.c */ 6 7 /* { dg-do run } */ 8 #include "ffitest.h" 9 10 typedef struct 11 { 12 double d1; 13 double d2; 14 } test_structure_2; 15 16 static test_structure_2 ABI_ATTR struct2(test_structure_2 ts) 17 { 18 ts.d1--; 19 ts.d2--; 20 21 return ts; 22 } 23 24 int main (void) 25 { 26 ffi_cif cif; 27 ffi_type *args[MAX_ARGS]; 28 void *values[MAX_ARGS]; 29 test_structure_2 ts2_arg; 30 ffi_type ts2_type; 31 ffi_type *ts2_type_elements[3]; 32 33 /* This is a hack to get a properly aligned result buffer */ 34 test_structure_2 *ts2_result = 35 (test_structure_2 *) malloc (sizeof(test_structure_2)); 36 37 ts2_type.size = 0; 38 ts2_type.alignment = 0; 39 ts2_type.type = FFI_TYPE_STRUCT; 40 ts2_type.elements = ts2_type_elements; 41 ts2_type_elements[0] = &ffi_type_double; 42 ts2_type_elements[1] = &ffi_type_double; 43 ts2_type_elements[2] = NULL; 44 45 args[0] = &ts2_type; 46 values[0] = &ts2_arg; 47 48 /* Initialize the cif */ 49 CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts2_type, args) == FFI_OK); 50 51 ts2_arg.d1 = 5.55; 52 ts2_arg.d2 = 6.66; 53 54 printf ("%g\n", ts2_arg.d1); 55 printf ("%g\n", ts2_arg.d2); 56 57 ffi_call(&cif, FFI_FN(struct2), ts2_result, values); 58 59 printf ("%g\n", ts2_result->d1); 60 printf ("%g\n", ts2_result->d2); 61 62 CHECK(ts2_result->d1 == 5.55 - 1); 63 CHECK(ts2_result->d2 == 6.66 - 1); 64 65 free (ts2_result); 66 exit(0); 67 } 68
