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 unsigned ui1; 13 unsigned ui2; 14 unsigned ui3; 15 } test_structure_4; 16 17 static test_structure_4 struct4(test_structure_4 ts) 18 { 19 ts.ui3 = ts.ui1 * ts.ui2 * ts.ui3; 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 ffi_type ts4_type; 30 ffi_type *ts4_type_elements[4]; 31 ts4_type.size = 0; 32 ts4_type.alignment = 0; 33 ts4_type.type = FFI_TYPE_STRUCT; 34 test_structure_4 ts4_arg; 35 ts4_type.elements = ts4_type_elements; 36 ts4_type_elements[0] = &ffi_type_uint; 37 ts4_type_elements[1] = &ffi_type_uint; 38 ts4_type_elements[2] = &ffi_type_uint; 39 ts4_type_elements[3] = NULL; 40 41 42 /* This is a hack to get a properly aligned result buffer */ 43 test_structure_4 *ts4_result = 44 (test_structure_4 *) malloc (sizeof(test_structure_4)); 45 46 args[0] = &ts4_type; 47 values[0] = &ts4_arg; 48 49 /* Initialize the cif */ 50 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, &ts4_type, args) == FFI_OK); 51 52 ts4_arg.ui1 = 2; 53 ts4_arg.ui2 = 3; 54 ts4_arg.ui3 = 4; 55 56 ffi_call (&cif, FFI_FN(struct4), ts4_result, values); 57 58 CHECK(ts4_result->ui3 == 2U * 3U * 4U); 59 60 61 free (ts4_result); 62 exit(0); 63 } 64
