Viewing file:  cls_1_1byte.c (2.25 KB) -rw-r--r--
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/* Area: ffi_call, closure_call
Purpose: Check structure passing with different structure size.
Especially with small structures which may fit in one
register. Depending on the ABI.
Limitations: none.
PR: none.
Originator: <andreast@gcc.gnu.org> 20030902 */
/* { dg-do run } */
#include "ffitest.h"
typedef struct cls_struct_1_1byte {
unsigned char a;
} cls_struct_1_1byte;
cls_struct_1_1byte cls_struct_1_1byte_fn(struct cls_struct_1_1byte a1,
struct cls_struct_1_1byte a2)
{
struct cls_struct_1_1byte result;
result.a = a1.a + a2.a;
printf("%d %d: %d\n", a1.a, a2.a, result.a);
return result;
}
static void
cls_struct_1_1byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
void* userdata __UNUSED__)
{
struct cls_struct_1_1byte a1, a2;
a1 = *(struct cls_struct_1_1byte*)(args[0]);
a2 = *(struct cls_struct_1_1byte*)(args[1]);
*(cls_struct_1_1byte*)resp = cls_struct_1_1byte_fn(a1, a2);
}
int main (void)
{
ffi_cif cif;
void *code;
ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
void* args_dbl[5];
ffi_type* cls_struct_fields[2];
ffi_type cls_struct_type;
ffi_type* dbl_arg_types[5];
struct cls_struct_1_1byte g_dbl = { 12 };
struct cls_struct_1_1byte f_dbl = { 178 };
struct cls_struct_1_1byte res_dbl;
cls_struct_type.size = 0;
cls_struct_type.alignment = 0;
cls_struct_type.type = FFI_TYPE_STRUCT;
cls_struct_type.elements = cls_struct_fields;
cls_struct_fields[0] = &ffi_type_uchar;
cls_struct_fields[1] = NULL;
dbl_arg_types[0] = &cls_struct_type;
dbl_arg_types[1] = &cls_struct_type;
dbl_arg_types[2] = NULL;
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type,
dbl_arg_types) == FFI_OK);
args_dbl[0] = &g_dbl;
args_dbl[1] = &f_dbl;
args_dbl[2] = NULL;
ffi_call(&cif, FFI_FN(cls_struct_1_1byte_fn), &res_dbl, args_dbl);
/* { dg-output "12 178: 190" } */
printf("res: %d\n", res_dbl.a);
/* { dg-output "\nres: 190" } */
CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_1_1byte_gn, NULL, code) == FFI_OK);
res_dbl = ((cls_struct_1_1byte(*)(cls_struct_1_1byte, cls_struct_1_1byte))(code))(g_dbl, f_dbl);
/* { dg-output "\n12 178: 190" } */
printf("res: %d\n", res_dbl.a);
/* { dg-output "\nres: 190" } */
exit(0);
}
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