Viewing file:  problem1.c (2.27 KB) -rw-rw-r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* Area: ffi_call, closure_call
Purpose: Check structure passing with different structure size.
Limitations: none.
PR: none.
Originator: <andreast@gcc.gnu.org> 20030828 */
/* { dg-do run } */
#include "ffitest.h"
typedef struct my_ffi_struct {
double a;
double b;
double c;
} my_ffi_struct;
my_ffi_struct callee(struct my_ffi_struct a1, struct my_ffi_struct a2)
{
struct my_ffi_struct result;
result.a = a1.a + a2.a;
result.b = a1.b + a2.b;
result.c = a1.c + a2.c;
printf("%g %g %g %g %g %g: %g %g %g\n", a1.a, a1.b, a1.c,
a2.a, a2.b, a2.c, result.a, result.b, result.c);
return result;
}
void stub(ffi_cif* cif __UNUSED__, void* resp, void** args,
void* userdata __UNUSED__)
{
struct my_ffi_struct a1;
struct my_ffi_struct a2;
a1 = *(struct my_ffi_struct*)(args[0]);
a2 = *(struct my_ffi_struct*)(args[1]);
*(my_ffi_struct *)resp = callee(a1, a2);
}
int main(void)
{
ffi_type* my_ffi_struct_fields[4];
ffi_type my_ffi_struct_type;
ffi_cif cif;
void *code;
ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
void* args[4];
ffi_type* arg_types[3];
struct my_ffi_struct g = { 1.0, 2.0, 3.0 };
struct my_ffi_struct f = { 1.0, 2.0, 3.0 };
struct my_ffi_struct res;
my_ffi_struct_type.size = 0;
my_ffi_struct_type.alignment = 0;
my_ffi_struct_type.type = FFI_TYPE_STRUCT;
my_ffi_struct_type.elements = my_ffi_struct_fields;
my_ffi_struct_fields[0] = &ffi_type_double;
my_ffi_struct_fields[1] = &ffi_type_double;
my_ffi_struct_fields[2] = &ffi_type_double;
my_ffi_struct_fields[3] = NULL;
arg_types[0] = &my_ffi_struct_type;
arg_types[1] = &my_ffi_struct_type;
arg_types[2] = NULL;
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &my_ffi_struct_type,
arg_types) == FFI_OK);
args[0] = &g;
args[1] = &f;
args[2] = NULL;
ffi_call(&cif, FFI_FN(callee), &res, args);
/* { dg-output "1 2 3 1 2 3: 2 4 6" } */
printf("res: %g %g %g\n", res.a, res.b, res.c);
/* { dg-output "\nres: 2 4 6" } */
CHECK(ffi_prep_closure_loc(pcl, &cif, stub, NULL, code) == FFI_OK);
res = ((my_ffi_struct(*)(struct my_ffi_struct, struct my_ffi_struct))(code))(g, f);
/* { dg-output "\n1 2 3 1 2 3: 2 4 6" } */
printf("res: %g %g %g\n", res.a, res.b, res.c);
/* { dg-output "\nres: 2 4 6" } */
exit(0);;
}
|