Viewing file:  va_2.c (3.68 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* Area: ffi_call
Purpose: Test passing struct in variable argument lists.
Limitations: none.
PR: none.
Originator: ARM Ltd. */
/* { dg-do run } */
/* { dg-output "" { xfail avr32*-*-* m68k-*-* alpha-*-* } } */
#include "ffitest.h"
#include <stdarg.h>
struct small_tag
{
unsigned char a;
unsigned char b;
};
struct large_tag
{
unsigned a;
unsigned b;
unsigned c;
unsigned d;
unsigned e;
};
static int
test_fn (int n, ...)
{
va_list ap;
struct small_tag s1;
struct small_tag s2;
struct large_tag l;
unsigned char uc;
signed char sc;
unsigned short us;
signed short ss;
unsigned int ui;
signed int si;
unsigned long ul;
signed long sl;
float f;
double d;
va_start (ap, n);
s1 = va_arg (ap, struct small_tag);
l = va_arg (ap, struct large_tag);
s2 = va_arg (ap, struct small_tag);
uc = va_arg (ap, unsigned);
sc = va_arg (ap, signed);
us = va_arg (ap, unsigned);
ss = va_arg (ap, signed);
ui = va_arg (ap, unsigned int);
si = va_arg (ap, signed int);
ul = va_arg (ap, unsigned long);
sl = va_arg (ap, signed long);
f = va_arg (ap, double); /* C standard promotes float->double
when anonymous */
d = va_arg (ap, double);
printf ("%u %u %u %u %u %u %u %u %u uc=%u sc=%d %u %d %u %d %lu %ld %f %f\n",
s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
s2.a, s2.b,
uc, sc,
us, ss,
ui, si,
ul, sl,
f, d);
va_end (ap);
return n + 1;
}
int
main (void)
{
ffi_cif cif;
void* args[15];
ffi_type* arg_types[15];
ffi_type s_type;
ffi_type *s_type_elements[3];
ffi_type l_type;
ffi_type *l_type_elements[6];
struct small_tag s1;
struct small_tag s2;
struct large_tag l1;
int n;
ffi_arg res;
unsigned int uc;
signed int sc;
unsigned int us;
signed int ss;
unsigned int ui;
signed int si;
unsigned long ul;
signed long sl;
double d1;
double f1;
s_type.size = 0;
s_type.alignment = 0;
s_type.type = FFI_TYPE_STRUCT;
s_type.elements = s_type_elements;
s_type_elements[0] = &ffi_type_uchar;
s_type_elements[1] = &ffi_type_uchar;
s_type_elements[2] = NULL;
l_type.size = 0;
l_type.alignment = 0;
l_type.type = FFI_TYPE_STRUCT;
l_type.elements = l_type_elements;
l_type_elements[0] = &ffi_type_uint;
l_type_elements[1] = &ffi_type_uint;
l_type_elements[2] = &ffi_type_uint;
l_type_elements[3] = &ffi_type_uint;
l_type_elements[4] = &ffi_type_uint;
l_type_elements[5] = NULL;
arg_types[0] = &ffi_type_sint;
arg_types[1] = &s_type;
arg_types[2] = &l_type;
arg_types[3] = &s_type;
arg_types[4] = &ffi_type_uint;
arg_types[5] = &ffi_type_sint;
arg_types[6] = &ffi_type_uint;
arg_types[7] = &ffi_type_sint;
arg_types[8] = &ffi_type_uint;
arg_types[9] = &ffi_type_sint;
arg_types[10] = &ffi_type_ulong;
arg_types[11] = &ffi_type_slong;
arg_types[12] = &ffi_type_double;
arg_types[13] = &ffi_type_double;
arg_types[14] = NULL;
CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 14, &ffi_type_sint, arg_types) == FFI_OK);
s1.a = 5;
s1.b = 6;
l1.a = 10;
l1.b = 11;
l1.c = 12;
l1.d = 13;
l1.e = 14;
s2.a = 7;
s2.b = 8;
n = 41;
uc = 9;
sc = 10;
us = 11;
ss = 12;
ui = 13;
si = 14;
ul = 15;
sl = 16;
f1 = 2.12;
d1 = 3.13;
args[0] = &n;
args[1] = &s1;
args[2] = &l1;
args[3] = &s2;
args[4] = &uc;
args[5] = ≻
args[6] = &us;
args[7] = &ss;
args[8] = &ui;
args[9] = &si;
args[10] = &ul;
args[11] = &sl;
args[12] = &f1;
args[13] = &d1;
args[14] = NULL;
ffi_call(&cif, FFI_FN(test_fn), &res, args);
/* { dg-output "5 6 10 11 12 13 14 7 8 uc=9 sc=10 11 12 13 14 15 16 2.120000 3.130000" } */
printf("res: %d\n", (int) res);
/* { dg-output "\nres: 42" } */
return 0;
}
|
