Ruby 2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)

cls_pointer.c
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1 /* Area: ffi_call, closure_call
2 Purpose: Check pointer arguments.
3 Limitations: none.
4 PR: none.
5 Originator: Blake Chaffin 6/6/2007 */
6
7 /* { dg-do run { xfail strongarm*-*-* xscale*-*-* } } */
8 #include "ffitest.h"
9
10 void* cls_pointer_fn(void* a1, void* a2)
11 {
12 void* result = (void*)((intptr_t)a1 + (intptr_t)a2);
13
14 printf("0x%08x 0x%08x: 0x%08x\n",
15 (unsigned int)(uintptr_t) a1,
16 (unsigned int)(uintptr_t) a2,
17 (unsigned int)(uintptr_t) result);
18
19 return result;
20 }
21
22 static void
23 cls_pointer_gn(ffi_cif* cif __UNUSED__, void* resp,
24 void** args, void* userdata __UNUSED__)
25 {
26 void* a1 = *(void**)(args[0]);
27 void* a2 = *(void**)(args[1]);
28
29 *(void**)resp = cls_pointer_fn(a1, a2);
30 }
31
32 int main (void)
33 {
34 ffi_cif cif;
35 void *code;
36 ffi_closure* pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
37 void* args[3];
38 /* ffi_type cls_pointer_type; */
39 ffi_type* arg_types[3];
40
41 /* cls_pointer_type.size = sizeof(void*);
42 cls_pointer_type.alignment = 0;
43 cls_pointer_type.type = FFI_TYPE_POINTER;
44 cls_pointer_type.elements = NULL;*/
45
46 void* arg1 = (void*)0x12345678;
47 void* arg2 = (void*)0x89abcdef;
48 ffi_arg res = 0;
49
50 arg_types[0] = &ffi_type_pointer;
51 arg_types[1] = &ffi_type_pointer;
52 arg_types[2] = NULL;
53
54 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_pointer,
55 arg_types) == FFI_OK);
56
57 args[0] = &arg1;
58 args[1] = &arg2;
59 args[2] = NULL;
60
61 ffi_call(&cif, FFI_FN(cls_pointer_fn), &res, args);
62 /* { dg-output "0x12345678 0x89abcdef: 0x9be02467" } */
63 printf("res: 0x%08x\n", (unsigned int) res);
64 /* { dg-output "\nres: 0x9be02467" } */
65
66 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_pointer_gn, NULL, code) == FFI_OK);
67
68 res = (ffi_arg)(uintptr_t)((void*(*)(void*, void*))(code))(arg1, arg2);
69 /* { dg-output "\n0x12345678 0x89abcdef: 0x9be02467" } */
70 printf("res: 0x%08x\n", (unsigned int) res);
71 /* { dg-output "\nres: 0x9be02467" } */
72
73 exit(0);
74 }
ffi_arg
unsigned long ffi_arg
Definition: ffitarget.h:30
uintptr_t
unsigned int uintptr_t
Definition: win32.h:106
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
NULL
#define NULL
Definition: _sdbm.c:101
exit
void exit(int __status) __attribute__((__noreturn__))
ffitest.h
__UNUSED__
#define __UNUSED__
Definition: ffitest.h:28
CHECK
#define CHECK(sub)
Definition: compile.c:448
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition: ffitarget.h:38
main
int main(void)
Definition: cls_pointer.c:32
ffi_prep_cif
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition: prep_cif.c:226
cls_pointer_fn
void * cls_pointer_fn(void *a1, void *a2)
Definition: cls_pointer.c:10
intptr_t
int intptr_t
Definition: win32.h:90
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
ffi_prep_closure_loc
ffi_status ffi_prep_closure_loc(ffi_closure *closure, ffi_cif *cif, void(*fun)(ffi_cif *, void *, void **, void *), void *user_data, void *codeloc)
Definition: ffi.c:928