1 /* Area: ffi_call, closure_call 2 Purpose: Check structure alignment of pointer. 3 Limitations: none. 4 PR: none. 5 Originator: <hos (at) tamanegi.org> 20031203 */ 6 7 /* { dg-do run } */ 8 #include "ffitest.h" 9 10 typedef struct cls_struct_align { 11 unsigned char a; 12 void *b; 13 unsigned char c; 14 } cls_struct_align; 15 16 cls_struct_align cls_struct_align_fn(struct cls_struct_align a1, 17 struct cls_struct_align a2) 18 { 19 struct cls_struct_align result; 20 21 result.a = a1.a + a2.a; 22 result.b = (void *)((uintptr_t)a1.b + (uintptr_t)a2.b); 23 result.c = a1.c + a2.c; 24 25 printf("%d %" PRIuPTR " %d %d %" PRIuPTR " %d: %d %" PRIuPTR " %d\n", 26 a1.a, (uintptr_t)a1.b, a1.c, 27 a2.a, (uintptr_t)a2.b, a2.c, 28 result.a, (uintptr_t)result.b, 29 result.c); 30 31 return result; 32 } 33 34 static void 35 cls_struct_align_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, 36 void* userdata __UNUSED__) 37 { 38 39 struct cls_struct_align a1, a2; 40 41 a1 = *(struct cls_struct_align*)(args[0]); 42 a2 = *(struct cls_struct_align*)(args[1]); 43 44 *(cls_struct_align*)resp = cls_struct_align_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_align g_dbl = { 12, (void *)4951, 127 }; 58 struct cls_struct_align f_dbl = { 1, (void *)9320, 13 }; 59 struct cls_struct_align 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_pointer; 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_align_fn), &res_dbl, args_dbl); 83 /* { dg-output "12 4951 127 1 9320 13: 13 14271 140" } */ 84 printf("res: %d %" PRIuPTR " %d\n", res_dbl.a, (uintptr_t)res_dbl.b, res_dbl.c); 85 /* { dg-output "\nres: 13 14271 140" } */ 86 87 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_align_gn, NULL, code) == FFI_OK); 88 89 res_dbl = ((cls_struct_align(*)(cls_struct_align, cls_struct_align))(code))(g_dbl, f_dbl); 90 /* { dg-output "\n12 4951 127 1 9320 13: 13 14271 140" } */ 91 printf("res: %d %" PRIuPTR " %d\n", res_dbl.a, (uintptr_t)res_dbl.b, res_dbl.c); 92 /* { dg-output "\nres: 13 14271 140" } */ 93 94 exit(0); 95 } 96
