1 /* Area: ffi_call, closure_call 2 Purpose: Check structure passing with different structure size. 3 Especially with small structures which may fit in one 4 register. Depending on the ABI. 5 Limitations: none. 6 PR: none. 7 Originator: <andreast (at) gcc.gnu.org> 20030902 */ 8 9 /* { dg-do run } */ 10 #include "ffitest.h" 11 12 typedef struct cls_struct_4_1byte { 13 unsigned char a; 14 unsigned char b; 15 unsigned char c; 16 unsigned char d; 17 } cls_struct_4_1byte; 18 19 cls_struct_4_1byte cls_struct_4_1byte_fn(struct cls_struct_4_1byte a1, 20 struct cls_struct_4_1byte a2) 21 { 22 struct cls_struct_4_1byte result; 23 24 result.a = a1.a + a2.a; 25 result.b = a1.b + a2.b; 26 result.c = a1.c + a2.c; 27 result.d = a1.d + a2.d; 28 29 printf("%d %d %d %d %d %d %d %d: %d %d %d %d\n", a1.a, a1.b, a1.c, a1.d, 30 a2.a, a2.b, a2.c, a2.d, 31 result.a, result.b, result.c, result.d); 32 33 return result; 34 } 35 36 static void 37 cls_struct_4_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, 38 void* userdata __UNUSED__) 39 { 40 41 struct cls_struct_4_1byte a1, a2; 42 43 a1 = *(struct cls_struct_4_1byte*)(args[0]); 44 a2 = *(struct cls_struct_4_1byte*)(args[1]); 45 46 *(cls_struct_4_1byte*)resp = cls_struct_4_1byte_fn(a1, a2); 47 } 48 49 int main (void) 50 { 51 ffi_cif cif; 52 void *code; 53 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 54 void* args_dbl[5]; 55 ffi_type* cls_struct_fields[5]; 56 ffi_type cls_struct_type; 57 ffi_type* dbl_arg_types[5]; 58 59 struct cls_struct_4_1byte g_dbl = { 12, 13, 14, 15 }; 60 struct cls_struct_4_1byte f_dbl = { 178, 179, 180, 181 }; 61 struct cls_struct_4_1byte res_dbl; 62 63 cls_struct_type.size = 0; 64 cls_struct_type.alignment = 0; 65 cls_struct_type.type = FFI_TYPE_STRUCT; 66 cls_struct_type.elements = cls_struct_fields; 67 68 cls_struct_fields[0] = &ffi_type_uchar; 69 cls_struct_fields[1] = &ffi_type_uchar; 70 cls_struct_fields[2] = &ffi_type_uchar; 71 cls_struct_fields[3] = &ffi_type_uchar; 72 cls_struct_fields[4] = NULL; 73 74 dbl_arg_types[0] = &cls_struct_type; 75 dbl_arg_types[1] = &cls_struct_type; 76 dbl_arg_types[2] = NULL; 77 78 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type, 79 dbl_arg_types) == FFI_OK); 80 81 args_dbl[0] = &g_dbl; 82 args_dbl[1] = &f_dbl; 83 args_dbl[2] = NULL; 84 85 ffi_call(&cif, FFI_FN(cls_struct_4_1byte_fn), &res_dbl, args_dbl); 86 /* { dg-output "12 13 14 15 178 179 180 181: 190 192 194 196" } */ 87 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d); 88 /* { dg-output "\nres: 190 192 194 196" } */ 89 90 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_4_1byte_gn, NULL, code) == FFI_OK); 91 92 res_dbl = ((cls_struct_4_1byte(*)(cls_struct_4_1byte, cls_struct_4_1byte))(code))(g_dbl, f_dbl); 93 /* { dg-output "\n12 13 14 15 178 179 180 181: 190 192 194 196" } */ 94 printf("res: %d %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c, res_dbl.d); 95 /* { dg-output "\nres: 190 192 194 196" } */ 96 97 exit(0); 98 } 99
