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
|
// RUN: %clang_hwasan %s -DTEST_NO=1 -mllvm -hwasan-instrument-mem-intrinsics -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=WRITE
// RUN: %clang_hwasan %s -DTEST_NO=2 -mllvm -hwasan-instrument-mem-intrinsics -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=READ
// RUN: %clang_hwasan %s -DTEST_NO=3 -mllvm -hwasan-instrument-mem-intrinsics -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=WRITE
// RUN: %clang_hwasan %s -DTEST_NO=2 -mllvm -hwasan-instrument-mem-intrinsics -o %t && not %env_hwasan_opts=halt_on_error=0 %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER
// REQUIRES: stable-runtime, pointer-tagging
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int main() {
char Q[16] __attribute__((aligned(256)));
char P[16] __attribute__((aligned(256)));
#if TEST_NO == 1
memset(Q, 0, 32);
#elif TEST_NO == 2
memmove(Q, Q + 16, 16);
#elif TEST_NO == 3
memcpy(Q, P, 32);
#endif
write(STDOUT_FILENO, "recovered\n", 10);
// WRITE: ERROR: HWAddressSanitizer: tag-mismatch on address
// WRITE: WRITE of size 32 at {{.*}} tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem)
// WRITE: Invalid access starting at offset [16, 32)
// WRITE: Memory tags around the buggy address (one tag corresponds to 16 bytes):
// WRITE: =>{{.*}}[[PTR_TAG]]{{[[:space:]]\[}}[[MEM_TAG]]
// WRITE-NOT: recovered
// READ: ERROR: HWAddressSanitizer: tag-mismatch on address
// READ-NOT: Invalid access starting at offset
// READ: READ {{.*}} tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem)
// READ: Memory tags around the buggy address (one tag corresponds to 16 bytes):
// READ: =>{{.*}}[[PTR_TAG]]{{[[:space:]]\[}}[[MEM_TAG]]
// READ-NOT: recovered
// RECOVER: recovered
return 0;
}
|
