Viewing file:  test_passing_structs_and_unions.c (1.63 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* This tests passing of structs. Only integers are tested. */
#include "defines.h"
#include "args.h"
struct IntegerRegisters iregbits = { ~0, ~0, ~0, ~0, ~0, ~0 };
struct IntegerRegisters iregs;
unsigned int num_iregs;
struct int_struct
{
int i;
};
struct longlong_struct
{
long long ll;
};
struct long2_struct
{
long long ll1, ll2;
};
struct long3_struct
{
long l1, l2, l3;
};
union un1
{
char c;
int i;
};
union un2
{
char c1;
long l;
char c2;
};
union un3
{
struct int_struct is;
struct longlong_struct ls;
union un1 un;
};
void
check_mixed_passing1 (char c1 ATTRIBUTE_UNUSED, struct int_struct is ATTRIBUTE_UNUSED, char c2 ATTRIBUTE_UNUSED)
{
check_int_arguments;
}
void
check_mixed_passing2 (char c1 ATTRIBUTE_UNUSED, struct long3_struct ls ATTRIBUTE_UNUSED, char c2 ATTRIBUTE_UNUSED)
{
check_int_arguments;
/* Check the passing on the stack by comparing the address of the
stack elements to the expected place on the stack. */
assert ((unsigned long)&ls.l1 == esp+4);
assert ((unsigned long)&ls.l2 == esp+8);
assert ((unsigned long)&ls.l3 == esp+12);
}
int
main (void)
{
struct int_struct is = { 64 };
#ifdef CHECK_LARGER_STRUCTS
struct long3_struct l3s = { 65, 66, 67 };
#endif
clear_struct_registers;
iregs.I0 = 8;
iregs.I1 = 64;
iregs.I2 = 9;
num_iregs = 3;
clear_int_hardware_registers;
WRAP_CALL (check_mixed_passing1)(8, is, 9);
#ifdef CHECK_LARGER_STRUCTS
clear_struct_registers;
iregs.I0 = 10;
iregbits.I0 = 0xff;
iregs.I1 = 11;
iregbits.I1 = 0xff;
num_iregs = 2;
clear_int_hardware_registers;
WRAP_CALL (check_mixed_passing2)(10, l3s, 11);
#endif
return 0;
}
|
