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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libffi/] [testsuite/] [libffi.call/] [nested_struct9.c] - Rev 750
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/* Area: ffi_call, closure_call Purpose: Check structure passing with different structure size. Contains structs as parameter of the struct itself. Sample taken from Alan Modras patch to src/prep_cif.c. Limitations: none. PR: none. Originator: <andreast@gcc.gnu.org> 20051010 */ /* { dg-do run } */ #include "ffitest.h" typedef struct A { unsigned char a; unsigned long long b; } A; typedef struct B { struct A x; unsigned char y; } B; typedef struct C { unsigned long d; unsigned char e; } C; static B B_fn(struct A b2, struct B b3, struct C b4) { struct B result; result.x.a = b2.a + b3.x.a + b4.d; result.x.b = b2.b + b3.x.b + b3.y + b4.e; result.y = b2.b + b3.x.b + b4.e; printf("%d %d %d %d %d %d %d: %d %d %d\n", b2.a, (int)b2.b, b3.x.a, (int)b3.x.b, b3.y, (int)b4.d, b4.e, result.x.a, (int)result.x.b, result.y); return result; } static void B_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, void* userdata __UNUSED__) { struct A b0; struct B b1; struct C b2; b0 = *(struct A*)(args[0]); b1 = *(struct B*)(args[1]); b2 = *(struct C*)(args[2]); *(B*)resp = B_fn(b0, b1, b2); } int main (void) { ffi_cif cif; void *code; ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); void* args_dbl[4]; ffi_type* cls_struct_fields[3]; ffi_type* cls_struct_fields1[3]; ffi_type* cls_struct_fields2[3]; ffi_type cls_struct_type, cls_struct_type1, cls_struct_type2; ffi_type* dbl_arg_types[4]; 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_type1.size = 0; cls_struct_type1.alignment = 0; cls_struct_type1.type = FFI_TYPE_STRUCT; cls_struct_type1.elements = cls_struct_fields1; cls_struct_type2.size = 0; cls_struct_type2.alignment = 0; cls_struct_type2.type = FFI_TYPE_STRUCT; cls_struct_type2.elements = cls_struct_fields2; struct A e_dbl = { 1, 7LL}; struct B f_dbl = {{12.0 , 127}, 99}; struct C g_dbl = { 2, 9}; struct B res_dbl; cls_struct_fields[0] = &ffi_type_uchar; cls_struct_fields[1] = &ffi_type_uint64; cls_struct_fields[2] = NULL; cls_struct_fields1[0] = &cls_struct_type; cls_struct_fields1[1] = &ffi_type_uchar; cls_struct_fields1[2] = NULL; cls_struct_fields2[0] = &ffi_type_ulong; cls_struct_fields2[1] = &ffi_type_uchar; cls_struct_fields2[2] = NULL; dbl_arg_types[0] = &cls_struct_type; dbl_arg_types[1] = &cls_struct_type1; dbl_arg_types[2] = &cls_struct_type2; dbl_arg_types[3] = NULL; CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &cls_struct_type1, dbl_arg_types) == FFI_OK); args_dbl[0] = &e_dbl; args_dbl[1] = &f_dbl; args_dbl[2] = &g_dbl; args_dbl[3] = NULL; ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl); /* { dg-output "1 7 12 127 99 2 9: 15 242 143" } */ CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + g_dbl.d)); CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e)); CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e)); CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK); res_dbl = ((B(*)(A, B, C))(code))(e_dbl, f_dbl, g_dbl); /* { dg-output "\n1 7 12 127 99 2 9: 15 242 143" } */ CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a + g_dbl.d)); CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y + g_dbl.e)); CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b + g_dbl.e)); exit(0); }
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