1 /* Area: ffi_call, closure_call 2 Purpose: Check structure passing with different structure size. 3 Limitations: none. 4 PR: none. 5 Originator: <andreast (at) gcc.gnu.org> 20030828 */ 6 7 /* { dg-do run } */ 8 #include "ffitest.h" 9 10 typedef struct my_ffi_struct { 11 double a; 12 double b; 13 double c; 14 } my_ffi_struct; 15 16 my_ffi_struct callee(struct my_ffi_struct a1, struct my_ffi_struct a2) 17 { 18 struct my_ffi_struct result; 19 result.a = a1.a + a2.a; 20 result.b = a1.b + a2.b; 21 result.c = a1.c + a2.c; 22 23 24 printf("%g %g %g %g %g %g: %g %g %g\n", a1.a, a1.b, a1.c, 25 a2.a, a2.b, a2.c, result.a, result.b, result.c); 26 27 return result; 28 } 29 30 void stub(ffi_cif* cif __UNUSED__, void* resp, void** args, 31 void* userdata __UNUSED__) 32 { 33 struct my_ffi_struct a1; 34 struct my_ffi_struct a2; 35 36 a1 = *(struct my_ffi_struct*)(args[0]); 37 a2 = *(struct my_ffi_struct*)(args[1]); 38 39 *(my_ffi_struct *)resp = callee(a1, a2); 40 } 41 42 43 int main(void) 44 { 45 ffi_type* my_ffi_struct_fields[4]; 46 ffi_type my_ffi_struct_type; 47 ffi_cif cif; 48 void *code; 49 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 50 void* args[4]; 51 ffi_type* arg_types[3]; 52 53 struct my_ffi_struct g = { 1.0, 2.0, 3.0 }; 54 struct my_ffi_struct f = { 1.0, 2.0, 3.0 }; 55 struct my_ffi_struct res; 56 57 my_ffi_struct_type.size = 0; 58 my_ffi_struct_type.alignment = 0; 59 my_ffi_struct_type.type = FFI_TYPE_STRUCT; 60 my_ffi_struct_type.elements = my_ffi_struct_fields; 61 62 my_ffi_struct_fields[0] = &ffi_type_double; 63 my_ffi_struct_fields[1] = &ffi_type_double; 64 my_ffi_struct_fields[2] = &ffi_type_double; 65 my_ffi_struct_fields[3] = NULL; 66 67 arg_types[0] = &my_ffi_struct_type; 68 arg_types[1] = &my_ffi_struct_type; 69 arg_types[2] = NULL; 70 71 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &my_ffi_struct_type, 72 arg_types) == FFI_OK); 73 74 args[0] = &g; 75 args[1] = &f; 76 args[2] = NULL; 77 ffi_call(&cif, FFI_FN(callee), &res, args); 78 /* { dg-output "1 2 3 1 2 3: 2 4 6" } */ 79 printf("res: %g %g %g\n", res.a, res.b, res.c); 80 /* { dg-output "\nres: 2 4 6" } */ 81 82 CHECK(ffi_prep_closure_loc(pcl, &cif, stub, NULL, code) == FFI_OK); 83 84 res = ((my_ffi_struct(*)(struct my_ffi_struct, struct my_ffi_struct))(code))(g, f); 85 /* { dg-output "\n1 2 3 1 2 3: 2 4 6" } */ 86 printf("res: %g %g %g\n", res.a, res.b, res.c); 87 /* { dg-output "\nres: 2 4 6" } */ 88 89 exit(0);; 90 } 91
