25 lines · c
1// RUN: %clang_hwasan -g %s -o %t && not %run %t 2>&1 | FileCheck %s2 3// Stack histories currently are not recorded on x86.4// XFAIL: target=x86_64{{.*}}5 6__attribute((noinline)) void buggy() {7 char c[64];8 char *volatile p = c;9 p[-2] = 0;10}11 12int main() {13 buggy();14 // CHECK: WRITE of size 1 at15 // CHECK: #0 {{.*}} in buggy{{.*}}stack-underflow.c:[[@LINE-6]]16 // CHECK: Cause: stack tag-mismatch17 // CHECK: is located in stack of thread18 // CHECK: Potentially referenced stack objects:19 // CHECK: Cause: stack-buffer-overflow20 // CHECK-NEXT: 0x{{.*}} is located 2 bytes before a 64-byte local variable c [0x{{.*}},0x{{.*}}) in buggy {{.*}}stack-underflow.c:21 // CHECK: Memory tags around the buggy address22 23 // CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in buggy24}25