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_3_1byte { 13 unsigned char a; 14 unsigned char b; 15 unsigned char c; 16 } cls_struct_3_1byte; 17 18 cls_struct_3_1byte cls_struct_3_1byte_fn(struct cls_struct_3_1byte a1, 19 struct cls_struct_3_1byte a2) 20 { 21 struct cls_struct_3_1byte result; 22 23 result.a = a1.a + a2.a; 24 result.b = a1.b + a2.b; 25 result.c = a1.c + a2.c; 26 27 printf("%d %d %d %d %d %d: %d %d %d\n", a1.a, a1.b, a1.c, 28 a2.a, a2.b, a2.c, 29 result.a, result.b, result.c); 30 31 return result; 32 } 33 34 static void 35 cls_struct_3_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, 36 void* userdata __UNUSED__) 37 { 38 39 struct cls_struct_3_1byte a1, a2; 40 41 a1 = *(struct cls_struct_3_1byte*)(args[0]); 42 a2 = *(struct cls_struct_3_1byte*)(args[1]); 43 44 *(cls_struct_3_1byte*)resp = cls_struct_3_1byte_fn(a1, a2); 45 } 46 47 int main (void) 48 { 49 ffi_cif cif; 50 void *code; 51 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 52 void* args_dbl[5]; 53 ffi_type* cls_struct_fields[4]; 54 ffi_type cls_struct_type; 55 ffi_type* dbl_arg_types[5]; 56 57 struct cls_struct_3_1byte g_dbl = { 12, 13, 14 }; 58 struct cls_struct_3_1byte f_dbl = { 178, 179, 180 }; 59 struct cls_struct_3_1byte res_dbl; 60 61 cls_struct_type.size = 0; 62 cls_struct_type.alignment = 0; 63 cls_struct_type.type = FFI_TYPE_STRUCT; 64 cls_struct_type.elements = cls_struct_fields; 65 66 cls_struct_fields[0] = &ffi_type_uchar; 67 cls_struct_fields[1] = &ffi_type_uchar; 68 cls_struct_fields[2] = &ffi_type_uchar; 69 cls_struct_fields[3] = NULL; 70 71 dbl_arg_types[0] = &cls_struct_type; 72 dbl_arg_types[1] = &cls_struct_type; 73 dbl_arg_types[2] = NULL; 74 75 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type, 76 dbl_arg_types) == FFI_OK); 77 78 args_dbl[0] = &g_dbl; 79 args_dbl[1] = &f_dbl; 80 args_dbl[2] = NULL; 81 82 ffi_call(&cif, FFI_FN(cls_struct_3_1byte_fn), &res_dbl, args_dbl); 83 /* { dg-output "12 13 14 178 179 180: 190 192 194" } */ 84 printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c); 85 /* { dg-output "\nres: 190 192 194" } */ 86 87 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3_1byte_gn, NULL, code) == FFI_OK); 88 89 res_dbl = ((cls_struct_3_1byte(*)(cls_struct_3_1byte, cls_struct_3_1byte))(code))(g_dbl, f_dbl); 90 /* { dg-output "\n12 13 14 178 179 180: 190 192 194" } */ 91 printf("res: %d %d %d\n", res_dbl.a, res_dbl.b, res_dbl.c); 92 /* { dg-output "\nres: 190 192 194" } */ 93 94 exit(0); 95 } 96
