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. Check overlapping. 5 Limitations: none. 6 PR: none. 7 Originator: <andreast (at) gcc.gnu.org> 20030828 */ 8 9 /* { dg-do run } */ 10 #include "ffitest.h" 11 12 typedef struct cls_struct_3byte { 13 unsigned short a; 14 unsigned char b; 15 } cls_struct_3byte; 16 17 cls_struct_3byte cls_struct_3byte_fn(struct cls_struct_3byte a1, 18 struct cls_struct_3byte a2) 19 { 20 struct cls_struct_3byte result; 21 22 result.a = a1.a + a2.a; 23 result.b = a1.b + a2.b; 24 25 printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b); 26 27 return result; 28 } 29 30 static void 31 cls_struct_3byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, 32 void* userdata __UNUSED__) 33 { 34 35 struct cls_struct_3byte a1, a2; 36 37 a1 = *(struct cls_struct_3byte*)(args[0]); 38 a2 = *(struct cls_struct_3byte*)(args[1]); 39 40 *(cls_struct_3byte*)resp = cls_struct_3byte_fn(a1, a2); 41 } 42 43 int main (void) 44 { 45 ffi_cif cif; 46 void *code; 47 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 48 void* args_dbl[5]; 49 ffi_type* cls_struct_fields[4]; 50 ffi_type cls_struct_type; 51 ffi_type* dbl_arg_types[5]; 52 53 struct cls_struct_3byte g_dbl = { 12, 119 }; 54 struct cls_struct_3byte f_dbl = { 1, 15 }; 55 struct cls_struct_3byte res_dbl; 56 57 cls_struct_type.size = 0; 58 cls_struct_type.alignment = 0; 59 cls_struct_type.type = FFI_TYPE_STRUCT; 60 cls_struct_type.elements = cls_struct_fields; 61 62 cls_struct_fields[0] = &ffi_type_ushort; 63 cls_struct_fields[1] = &ffi_type_uchar; 64 cls_struct_fields[2] = NULL; 65 66 dbl_arg_types[0] = &cls_struct_type; 67 dbl_arg_types[1] = &cls_struct_type; 68 dbl_arg_types[2] = NULL; 69 70 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type, 71 dbl_arg_types) == FFI_OK); 72 73 args_dbl[0] = &g_dbl; 74 args_dbl[1] = &f_dbl; 75 args_dbl[2] = NULL; 76 77 ffi_call(&cif, FFI_FN(cls_struct_3byte_fn), &res_dbl, args_dbl); 78 /* { dg-output "12 119 1 15: 13 134" } */ 79 printf("res: %d %d\n", res_dbl.a, res_dbl.b); 80 /* { dg-output "\nres: 13 134" } */ 81 82 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3byte_gn, NULL, code) == FFI_OK); 83 84 res_dbl = ((cls_struct_3byte(*)(cls_struct_3byte, cls_struct_3byte))(code))(g_dbl, f_dbl); 85 /* { dg-output "\n12 119 1 15: 13 134" } */ 86 printf("res: %d %d\n", res_dbl.a, res_dbl.b); 87 /* { dg-output "\nres: 13 134" } */ 88 89 exit(0); 90 } 91
