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
| #include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "../profile_test.h"
int __llvm_profile_runtime = 0;
uint64_t __llvm_profile_get_size_for_buffer(void);
int __llvm_profile_write_buffer(char *);
void __llvm_profile_reset_counters(void);
int __llvm_profile_check_compatibility(const char *, uint64_t);
int g = 0;
void foo(char c) {
if (c == '1')
g++;
else
g--;
}
extern uint64_t libEntry(char *Buffer, uint64_t MaxSize);
int main(int argc, const char *argv[]) {
const uint64_t MaxSize = 10000;
static char ALIGNED(sizeof(uint64_t)) Buffer[MaxSize];
uint64_t Size = __llvm_profile_get_size_for_buffer();
if (Size > MaxSize)
return 1;
__llvm_profile_reset_counters();
foo('0');
if (__llvm_profile_write_buffer(Buffer))
return 1;
/* Now check compatibility. Should return 0. */
if (__llvm_profile_check_compatibility(Buffer, Size))
return 1;
/* Clear the buffer. */
memset(Buffer, 0, MaxSize);
/* Collect profile from shared library. */
Size = libEntry(Buffer, MaxSize);
if (!Size)
return 1;
/* Shared library's profile should not match main executable's. */
if (!__llvm_profile_check_compatibility(Buffer, Size))
return 1;
return 0;
}
|