1 /* Area: ffi_call, closure_call 2 Purpose: Test long doubles passed in variable argument lists. 3 Limitations: none. 4 PR: none. 5 Originator: Blake Chaffin 6/6/2007 */ 6 7 /* { dg-do run { xfail strongarm*-*-* xscale*-*-* } } */ 8 /* { dg-output "" { xfail avr32*-*-* x86_64-*-mingw* } } */ 9 /* { dg-output "" { xfail mips-sgi-irix6* } } PR libffi/46660 */ 10 11 #include "ffitest.h" 12 13 static void 14 cls_longdouble_va_fn(ffi_cif* cif __UNUSED__, void* resp, 15 void** args, void* userdata __UNUSED__) 16 { 17 char* format = *(char**)args[0]; 18 long double ldValue = *(long double*)args[1]; 19 20 *(ffi_arg*)resp = printf(format, ldValue); 21 } 22 23 int main (void) 24 { 25 ffi_cif cif; 26 void *code; 27 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 28 void* args[3]; 29 ffi_type* arg_types[3]; 30 31 char* format = "%.1Lf\n"; 32 long double ldArg = 7; 33 ffi_arg res = 0; 34 35 arg_types[0] = &ffi_type_pointer; 36 arg_types[1] = &ffi_type_longdouble; 37 arg_types[2] = NULL; 38 39 /* This printf call is variadic */ 40 CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2, &ffi_type_sint, 41 arg_types) == FFI_OK); 42 43 args[0] = &format; 44 args[1] = &ldArg; 45 args[2] = NULL; 46 47 ffi_call(&cif, FFI_FN(printf), &res, args); 48 /* { dg-output "7.0" } */ 49 printf("res: %d\n", (int) res); 50 /* { dg-output "\nres: 4" } */ 51 52 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_longdouble_va_fn, NULL, 53 code) == FFI_OK); 54 55 res = ((int(*)(char*, ...))(code))(format, ldArg); 56 /* { dg-output "\n7.0" } */ 57 printf("res: %d\n", (int) res); 58 /* { dg-output "\nres: 4" } */ 59 60 exit(0); 61 } 62
