From 2ea3addd3001ed339f0f0600d5c8845aa15d962e Mon Sep 17 00:00:00 2001 From: "vivian, zhang" Date: Sun, 3 Jun 2012 11:36:11 +0800 Subject: Initial import package libffi: A portable foreign function interface library --- testsuite/libffi.call/cls_3byte1.c | 90 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 testsuite/libffi.call/cls_3byte1.c (limited to 'testsuite/libffi.call/cls_3byte1.c') diff --git a/testsuite/libffi.call/cls_3byte1.c b/testsuite/libffi.call/cls_3byte1.c new file mode 100644 index 0000000..5705ce3 --- /dev/null +++ b/testsuite/libffi.call/cls_3byte1.c @@ -0,0 +1,90 @@ +/* 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. Check overlapping. + Limitations: none. + PR: none. + Originator: 20030828 */ + +/* { dg-do run } */ +#include "ffitest.h" + +typedef struct cls_struct_3byte { + unsigned short a; + unsigned char b; +} cls_struct_3byte; + +cls_struct_3byte cls_struct_3byte_fn(struct cls_struct_3byte a1, + struct cls_struct_3byte a2) +{ + struct cls_struct_3byte result; + + result.a = a1.a + a2.a; + result.b = a1.b + a2.b; + + printf("%d %d %d %d: %d %d\n", a1.a, a1.b, a2.a, a2.b, result.a, result.b); + + return result; +} + +static void +cls_struct_3byte_gn(ffi_cif* cif __UNUSED__, void* resp, void** args, + void* userdata __UNUSED__) +{ + + struct cls_struct_3byte a1, a2; + + a1 = *(struct cls_struct_3byte*)(args[0]); + a2 = *(struct cls_struct_3byte*)(args[1]); + + *(cls_struct_3byte*)resp = cls_struct_3byte_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[4]; + ffi_type cls_struct_type; + ffi_type* dbl_arg_types[5]; + + cls_struct_type.size = 0; + cls_struct_type.alignment = 0; + cls_struct_type.type = FFI_TYPE_STRUCT; + cls_struct_type.elements = cls_struct_fields; + + struct cls_struct_3byte g_dbl = { 12, 119 }; + struct cls_struct_3byte f_dbl = { 1, 15 }; + struct cls_struct_3byte res_dbl; + + cls_struct_fields[0] = &ffi_type_ushort; + cls_struct_fields[1] = &ffi_type_uchar; + cls_struct_fields[2] = 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_3byte_fn), &res_dbl, args_dbl); + /* { dg-output "12 119 1 15: 13 134" } */ + printf("res: %d %d\n", res_dbl.a, res_dbl.b); + /* { dg-output "\nres: 13 134" } */ + + CHECK(ffi_prep_closure_loc(pcl, &cif, cls_struct_3byte_gn, NULL, code) == FFI_OK); + + res_dbl = ((cls_struct_3byte(*)(cls_struct_3byte, cls_struct_3byte))(code))(g_dbl, f_dbl); + /* { dg-output "\n12 119 1 15: 13 134" } */ + printf("res: %d %d\n", res_dbl.a, res_dbl.b); + /* { dg-output "\nres: 13 134" } */ + + exit(0); +} -- cgit v1.2.3