/* Area: ffi_call, closure_call Purpose: Check structure passing with different structure size. Especially with small structures which may fit in one register. Depending on the ABI. Limitations: none. PR: none. Originator: <andreast@gcc.gnu.org> 20030828 */ /* { dg-do run } */ #include "ffitest.h" typedef struct cls_struct_2byte { unsigned char a; unsigned char b; } cls_struct_2byte; cls_struct_2byte cls_struct_2byte_fn(struct cls_struct_2byte a1, struct cls_struct_2byte a2) { struct cls_struct_2byte result; result.a = a1.a + a2.a; result.b = a1.b + a2.b; printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b); return result; } static void cls_struct_2byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, void* userdata __UNUSED__) { struct cls_struct_2byte a1, a2; a1 = *(struct cls_struct_2byte*)(args[0]); a2 = *(struct cls_struct_2byte*)(args[1]); *(cls_struct_2byte*)resp = cls_struct_2byte_fn(a1, a2); } int main (void) { ffi_cif cif; #ifndef USING_MMAP static ffi_closure cl; #endif ffi_closure *pcl; void* args_dbl[5]; ffi_type* cls_struct_fields[4]; ffi_type cls_struct_type; ffi_type* dbl_arg_types[5]; #ifdef USING_MMAP pcl = allocate_mmap (sizeof(ffi_closure)); #else pcl = &cl; #endif cls_struct_type.size = 0; cls_struct_type.alignment = 0; cls_struct_type.type = FFI_TYPE_STRUCT; cls_struct_type.elements = cls_struct_fields; struct cls_struct_2byte g_dbl = { 12, 127 }; struct cls_struct_2byte f_dbl = { 1, 13 }; struct cls_struct_2byte res_dbl; cls_struct_fields[0] = &ffi_type_uchar; cls_struct_fields[1] = &ffi_type_uchar; cls_struct_fields[2] = NULL; dbl_arg_types[0] = &cls_struct_type; dbl_arg_types[1] = &cls_struct_type; dbl_arg_types[2] = NULL; CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type, dbl_arg_types) == FFI_OK); args_dbl[0] = &g_dbl; args_dbl[1] = &f_dbl; args_dbl[2] = NULL; ffi_call(&cif, FFI_FN(cls_struct_2byte_fn), &res_dbl, args_dbl); /* { dg-output "12 127 1 13: 13 140" } */ printf("res: %d %d\n", res_dbl.a, res_dbl.b); /* { dg-output "\nres: 13 140" } */ CHECK(ffi_prep_closure(pcl, &cif, cls_struct_2byte_gn, NULL) == FFI_OK); res_dbl = ((cls_struct_2byte(*)(cls_struct_2byte, cls_struct_2byte))(pcl))(g_dbl, f_dbl); /* { dg-output "\n12 127 1 13: 13 140" } */ printf("res: %d %d\n", res_dbl.a, res_dbl.b); /* { dg-output "\nres: 13 140" } */ exit(0); }