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
|
// RUN: %clang_cc1 -x c -triple bpf-pc-linux-gnu -dwarf-version=4 -fsyntax-only -verify %s
#define __reloc__ __attribute__((preserve_access_index))
#define __err_reloc__ __attribute__((preserve_access_index(0)))
struct t1 {
int a;
int b[4];
int c:1;
} __reloc__;
union t2 {
int a;
int b[4];
int c:1;
} __reloc__;
struct t3 {
int a;
} __err_reloc__; // expected-error {{'preserve_access_index' attribute takes no arguments}}
struct t4 {
union {
int a;
char b[5];
};
struct {
int c:1;
} __reloc__;
int d;
} __reloc__;
struct __reloc__ p;
struct __reloc__ q;
struct p {
int a;
};
int a __reloc__; // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
struct s *p __reloc__; // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
void invalid1(const int __reloc__ *arg) {} // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
void invalid2() { const int __reloc__ *arg; } // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
int valid3(struct t4 *arg) { return arg->a + arg->b[3] + arg->c + arg->d; }
int valid4(void *arg) {
struct local_t { int a; int b; } __reloc__;
return ((struct local_t *)arg)->b;
}
|
