Viewing file:  struct4.c (1.3 KB) -rw-r--r--
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/* Area: ffi_call
Purpose: Check structures.
Limitations: none.
PR: none.
Originator: From the original ffitest.c */
/* { dg-do run } */
#include "ffitest.h"
typedef struct
{
unsigned ui1;
unsigned ui2;
unsigned ui3;
} test_structure_4;
static test_structure_4 ABI_ATTR struct4(test_structure_4 ts)
{
ts.ui3 = ts.ui1 * ts.ui2 * ts.ui3;
return ts;
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
ffi_type ts4_type;
ffi_type *ts4_type_elements[4];
test_structure_4 ts4_arg;
/* This is a hack to get a properly aligned result buffer */
test_structure_4 *ts4_result =
(test_structure_4 *) malloc (sizeof(test_structure_4));
ts4_type.size = 0;
ts4_type.alignment = 0;
ts4_type.type = FFI_TYPE_STRUCT;
ts4_type.elements = ts4_type_elements;
ts4_type_elements[0] = &ffi_type_uint;
ts4_type_elements[1] = &ffi_type_uint;
ts4_type_elements[2] = &ffi_type_uint;
ts4_type_elements[3] = NULL;
args[0] = &ts4_type;
values[0] = &ts4_arg;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts4_type, args) == FFI_OK);
ts4_arg.ui1 = 2;
ts4_arg.ui2 = 3;
ts4_arg.ui3 = 4;
ffi_call (&cif, FFI_FN(struct4), ts4_result, values);
CHECK(ts4_result->ui3 == 2U * 3U * 4U);
free (ts4_result);
exit(0);
}
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