1// RUN: %clang_hwasan_oldrt -DSIZE=2 -O0 %s -o %t && %run %t
2// RUN: %clang_hwasan -DSIZE=2 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
3// RUN: %clang_hwasan_oldrt -DSIZE=15 -O0 %s -o %t && %run %t
4// RUN: %clang_hwasan -DSIZE=15 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
5// RUN: %clang_hwasan_oldrt -DSIZE=16 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
6// RUN: %clang_hwasan -DSIZE=16 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
7// RUN: %clang_hwasan -DSIZE=64 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
8// RUN: %clang_hwasan -DSIZE=0x1000 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
9
10// Stack short granules are currently not implemented on x86.
11// RISC-V target doesn't support oldrt
12// XFAIL: target={{(x86_64|riscv64).*}}
13
14#include <stdlib.h>
15#include <sanitizer/hwasan_interface.h>
16
17__attribute__((noinline))
18int f() {
19 char z[SIZE];
20 char *volatile p = z;
21 return p[SIZE];
22}
23
24int main() {
25 f();
26 // CHECK: READ of size 1 at
27 // CHECK: #0 {{.*}} in f{{.*}}stack-oob.c:[[@LINE-6]]
28
29 // CHECK-NOT: Cause: global-overflow
30 // CHECK: Cause: stack tag-mismatch
31 // CHECK: is located in stack of threa
32 // CHECK-NOT: Cause: global-overflow
33
34 // CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in f
35}
36

source code of compiler-rt/test/hwasan/TestCases/stack-oob.c