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
|
// RUN: %clangxx_msan -O0 %s -o %t && %run %t
// Check that strlen() and similar intercepted functions can be called on shadow
// memory.
// The mem_to_shadow's part might need rework
// XFAIL: target={{.*freebsd.*}}
#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "test.h"
const char *mem_to_shadow(const char *p) {
#if defined(__x86_64__)
return (char *)((uintptr_t)p ^ 0x500000000000ULL);
#elif defined(__loongarch_lp64)
return (char *)((uintptr_t)p ^ 0x500000000000ULL);
#elif defined (__mips64)
return (char *)((uintptr_t)p ^ 0x8000000000ULL);
#elif defined(__powerpc64__)
#define LINEARIZE_MEM(mem) \
(((uintptr_t)(mem) & ~0x200000000000ULL) ^ 0x100000000000ULL)
return (char *)(LINEARIZE_MEM(p) + 0x080000000000ULL);
#elif defined(__s390x__)
return (char *)(((uintptr_t)p & ~0xC00000000000ULL) + 0x080000000000ULL);
#elif defined(__aarch64__)
return (char *)((uintptr_t)p ^ 0xB00000000000ULL);
#endif
}
int main(void) {
const char *s = "abcdef";
assert(strlen(s) == 6);
assert(strlen(mem_to_shadow(s)) == 0);
char *t = new char[42];
t[41] = 0;
assert(strlen(mem_to_shadow(t)) == 41);
return 0;
}
|
