| /* 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. Check overlapping. |
| Limitations: none. |
| PR: none. |
| Originator: <andreast@gcc.gnu.org> 20030828 */ |
| |
| /* { dg-do run } */ |
| #include "ffitest.h" |
| |
| typedef struct cls_struct_3byte_1 { |
| unsigned char a; |
| unsigned short b; |
| } cls_struct_3byte_1; |
| |
| cls_struct_3byte_1 cls_struct_3byte_fn1(struct cls_struct_3byte_1 a1, |
| struct cls_struct_3byte_1 a2) |
| { |
| struct cls_struct_3byte_1 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_3byte_gn1(ffi_cif* cif __UNUSED__, void* resp, void** args, |
| void* userdata __UNUSED__) |
| { |
| |
| struct cls_struct_3byte_1 a1, a2; |
| |
| a1 = *(struct cls_struct_3byte_1*)(args[0]); |
| a2 = *(struct cls_struct_3byte_1*)(args[1]); |
| |
| *(cls_struct_3byte_1*)resp = cls_struct_3byte_fn1(a1, a2); |
| } |
| |
| int main (void) |
| { |
| ffi_cif cif; |
| void *code; |
| ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); |
| void* args_dbl[5]; |
| ffi_type* cls_struct_fields[4]; |
| ffi_type cls_struct_type; |
| ffi_type* dbl_arg_types[5]; |
| |
| struct cls_struct_3byte_1 g_dbl = { 15, 125 }; |
| struct cls_struct_3byte_1 f_dbl = { 9, 19 }; |
| struct cls_struct_3byte_1 res_dbl; |
| |
| cls_struct_type.size = 0; |
| cls_struct_type.alignment = 0; |
| cls_struct_type.type = FFI_TYPE_STRUCT; |
| cls_struct_type.elements = cls_struct_fields; |
| |
| cls_struct_fields[0] = &ffi_type_uchar; |
| cls_struct_fields[1] = &ffi_type_ushort; |
| 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_3byte_fn1), &res_dbl, args_dbl); |
| /* { dg-output "15 125 9 19: 24 144" } */ |
| printf("res: %d %d\n", res_dbl.a, res_dbl.b); |
| /* { dg-output "\nres: 24 144" } */ |
| |
| CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3byte_gn1, NULL, code) == FFI_OK); |
| |
| res_dbl = ((cls_struct_3byte_1(*)(cls_struct_3byte_1, cls_struct_3byte_1))(code))(g_dbl, f_dbl); |
| /* { dg-output "\n15 125 9 19: 24 144" } */ |
| printf("res: %d %d\n", res_dbl.a, res_dbl.b); |
| /* { dg-output "\nres: 24 144" } */ |
| |
| exit(0); |
| } |