1/* Area: ffi_call, closure_call 2 Purpose: Check structure passing with different structure size. 3 Especially with small structures which may fit in one 4 register. Depending on the ABI. 5 Limitations: none. 6 PR: none. 7 Originator: <andreast@gcc.gnu.org> 20030828 */ 8 9/* { dg-do run { xfail mips*-*-* arm*-*-* strongarm*-*-* xscale*-*-* } } */ 10#include "ffitest.h" 11 12typedef struct cls_struct_2byte { 13 unsigned char a; 14 unsigned char b; 15} cls_struct_2byte; 16 17cls_struct_2byte cls_struct_2byte_fn(struct cls_struct_2byte a1, 18 struct cls_struct_2byte a2) 19{ 20 struct cls_struct_2byte result; 21 22 result.a = a1.a + a2.a; 23 result.b = a1.b + a2.b; 24 25 printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b); 26 27 return result; 28} 29 30static void 31cls_struct_2byte_gn(ffi_cif* cif, void* resp, void** args, void* userdata) 32{ 33 34 struct cls_struct_2byte a1, a2; 35 36 a1 = *(struct cls_struct_2byte*)(args[0]); 37 a2 = *(struct cls_struct_2byte*)(args[1]); 38 39 *(cls_struct_2byte*)resp = cls_struct_2byte_fn(a1, a2); 40} 41 42int main (void) 43{ 44 ffi_cif cif; 45#ifndef USING_MMAP 46 static ffi_closure cl; 47#endif 48 ffi_closure *pcl; 49 void* args_dbl[5]; 50 ffi_type* cls_struct_fields[4]; 51 ffi_type cls_struct_type; 52 ffi_type* dbl_arg_types[5]; 53 54#ifdef USING_MMAP 55 pcl = allocate_mmap (sizeof(ffi_closure)); 56#else 57 pcl = &cl; 58#endif 59 60 cls_struct_type.size = 0; 61 cls_struct_type.alignment = 0; 62 cls_struct_type.type = FFI_TYPE_STRUCT; 63 cls_struct_type.elements = cls_struct_fields; 64 65 struct cls_struct_2byte g_dbl = { 12, 127 }; 66 struct cls_struct_2byte f_dbl = { 1, 13 }; 67 struct cls_struct_2byte res_dbl; 68 69 cls_struct_fields[0] = &ffi_type_uchar; 70 cls_struct_fields[1] = &ffi_type_uchar; 71 cls_struct_fields[2] = NULL; 72 73 dbl_arg_types[0] = &cls_struct_type; 74 dbl_arg_types[1] = &cls_struct_type; 75 dbl_arg_types[2] = NULL; 76 77 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type, 78 dbl_arg_types) == FFI_OK); 79 80 args_dbl[0] = &g_dbl; 81 args_dbl[1] = &f_dbl; 82 args_dbl[2] = NULL; 83 84 ffi_call(&cif, FFI_FN(cls_struct_2byte_fn), &res_dbl, args_dbl); 85 /* { dg-output "12 127 1 13: 13 140" } */ 86 printf("res: %d %d\n", res_dbl.a, res_dbl.b); 87 /* { dg-output "\nres: 13 140" } */ 88 89 CHECK(ffi_prep_closure(pcl, &cif, cls_struct_2byte_gn, NULL) == FFI_OK); 90 91 res_dbl = ((cls_struct_2byte(*)(cls_struct_2byte, cls_struct_2byte))(pcl))(g_dbl, f_dbl); 92 /* { dg-output "\n12 127 1 13: 13 140" } */ 93 printf("res: %d %d\n", res_dbl.a, res_dbl.b); 94 /* { dg-output "\nres: 13 140" } */ 95 96 exit(0); 97} 98