1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/* Check that protocol qualifiers are compiled and encoded properly. */
/* Author: Ziemowit Laski <zlaski@apple.com> */
/* { dg-do run } */
/* { dg-xfail-run-if "Needs OBJC2 ABI" { *-*-darwin* && { lp64 && { ! objc2 } } } { "-fnext-runtime" } { "" } } */
#include "../objc-obj-c++-shared/runtime.h"
#include <objc/Protocol.h>
/* The encoded parameter sizes will be rounded up to match pointer alignment. */
#define ROUND(s,a) (a * ((s + a - 1) / a))
#define aligned_sizeof(T) ROUND(sizeof(T),__alignof(void *))
extern int sscanf(const char *str, const char *format, ...);
extern void abort(void);
#define CHECK_IF(expr) if(!(expr)) abort()
@protocol Retain
+ (oneway void)retainArgument:(out bycopy id)arg1 with:(in signed char **)arg2;
- (bycopy) address:(byref inout id)location with:(out short unsigned **)arg2;
@end
@interface Foo <Retain>
+ (oneway void)retainArgument:(out bycopy id)arg with:(in signed char **)arg2;
@end
@implementation Foo
+ (oneway void)retainArgument:(out bycopy id)arg1 with:(in signed char **)arg2 { }
- (bycopy) address:(byref inout id)location with:(out short unsigned **)arg2 { return nil; }
@end
Protocol *proto;
struct objc_method_description *meth;
struct objc_method_description meth_object;
unsigned totsize, offs0, offs1, offs2, offs3, offs4, offs5, offs6, offs7;
static void scan_initial(const char *pattern) {
totsize = offs0 = offs1 = offs2 = offs3 = offs4 = offs5 = offs6 = offs7 = (unsigned)-1;
sscanf(meth->types, pattern, &totsize, &offs0, &offs1, &offs2, &offs3,
&offs4, &offs5, &offs6, &offs7);
CHECK_IF(!offs0 && offs1 == aligned_sizeof(id) && offs2 == offs1 + aligned_sizeof(SEL) && totsize >= offs2);
}
int main(void) {
proto = @protocol(Retain);
meth_object = protocol_getMethodDescription (proto,
@selector(address:with:), YES, YES);
meth = &meth_object;
scan_initial("O@%u@%u:%uNR@%uo^^S%u");
CHECK_IF(offs3 == offs2 + aligned_sizeof(id) && totsize == offs3 + aligned_sizeof(unsigned));
meth_object = protocol_getMethodDescription (proto,
@selector(retainArgument:with:), YES, NO);
meth = &meth_object;
scan_initial("Vv%u@%u:%uOo@%un^*%u");
CHECK_IF(offs3 == offs2 + aligned_sizeof(id) && totsize == offs3 + aligned_sizeof(char **));
return 0;
}
|
