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 char uc; 13 double d; 14 unsigned int ui; 15 } test_structure_1; 16 17 static test_structure_1 ABI_ATTR struct1(test_structure_1 ts) 18 { 19 ts.uc++; 20 ts.d--; 21 ts.ui++; 22 23 return ts; 24 } 25 26 int main (void) 27 { 28 ffi_cif cif; 29 ffi_type *args[MAX_ARGS]; 30 void *values[MAX_ARGS]; 31 ffi_type ts1_type; 32 ffi_type *ts1_type_elements[4]; 33 34 test_structure_1 ts1_arg; 35 36 /* This is a hack to get a properly aligned result buffer */ 37 test_structure_1 *ts1_result = 38 (test_structure_1 *) malloc (sizeof(test_structure_1)); 39 40 ts1_type.size = 0; 41 ts1_type.alignment = 0; 42 ts1_type.type = FFI_TYPE_STRUCT; 43 ts1_type.elements = ts1_type_elements; 44 ts1_type_elements[0] = &ffi_type_uchar; 45 ts1_type_elements[1] = &ffi_type_double; 46 ts1_type_elements[2] = &ffi_type_uint; 47 ts1_type_elements[3] = NULL; 48 49 args[0] = &ts1_type; 50 values[0] = &ts1_arg; 51 52 /* Initialize the cif */ 53 CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, 54 &ts1_type, args) == FFI_OK); 55 56 ts1_arg.uc = '\x01'; 57 ts1_arg.d = 3.14159; 58 ts1_arg.ui = 555; 59 60 ffi_call(&cif, FFI_FN(struct1), ts1_result, values); 61 62 CHECK(ts1_result->ui == 556); 63 CHECK(ts1_result->d == 3.14159 - 1); 64 65 free (ts1_result); 66 exit(0); 67 } 68
