diff options
Diffstat (limited to 'testsuite/libffi.call/struct_by_value_3.c')
-rw-r--r-- | testsuite/libffi.call/struct_by_value_3.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/testsuite/libffi.call/struct_by_value_3.c b/testsuite/libffi.call/struct_by_value_3.c new file mode 100644 index 0000000..55cf113 --- /dev/null +++ b/testsuite/libffi.call/struct_by_value_3.c @@ -0,0 +1,65 @@ +/* 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 int ui01; + unsigned int ui02; + unsigned int ui03; +} test_structure_1; + +static test_structure_1 ABI_ATTR struct1(test_structure_1 ts) +{ + ts.ui03++; + + return ts; +} + +int main (void) +{ + ffi_cif cif; + ffi_type *args[MAX_ARGS]; + void *values[MAX_ARGS]; + ffi_type ts1_type; + ffi_type *ts1_type_elements[4]; + + test_structure_1 ts1_arg; + + /* This is a hack to get a properly aligned result buffer */ + test_structure_1 *ts1_result = + (test_structure_1 *) malloc (sizeof(test_structure_1)); + + ts1_type.size = 0; + ts1_type.alignment = 0; + ts1_type.type = FFI_TYPE_STRUCT; + ts1_type.elements = ts1_type_elements; + ts1_type_elements[0] = &ffi_type_uint; + ts1_type_elements[1] = &ffi_type_uint; + ts1_type_elements[2] = &ffi_type_uint; + ts1_type_elements[3] = NULL; + + args[0] = &ts1_type; + values[0] = &ts1_arg; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, + &ts1_type, args) == FFI_OK); + + ts1_arg.ui03 = 555; + + ffi_call(&cif, FFI_FN(struct1), ts1_result, values); + + CHECK(ts1_result->ui03 == 556); + + /* This will fail if ffi_call isn't passing the struct by value. */ + CHECK(ts1_arg.ui03 == 555); + + free (ts1_result); + exit(0); +} |