xref: /llvm-project/compiler-rt/test/hwasan/TestCases/stack-overflow.c (revision 78f0991abdae723f535fda58a4bb16b53bea7010)
1 // RUN: %clang_hwasan -O0 -g %s -o %t && not %run %t 2>&1 | FileCheck %s
2 // RUN: %clang_hwasan -O3 -g %s -o %t && not %run %t 2>&1 | FileCheck %s
3 
4 // Stack histories currently are not recorded on x86.
5 // XFAIL: target=x86_64{{.*}}
6 
buggy()7 __attribute((noinline)) void buggy() {
8   char c[64];
9   char *volatile p = c;
10   p[65] = 0;
11 }
12 
main()13 int main() {
14   buggy();
15   // CHECK: WRITE of size 1 at
16   // CHECK: #0 {{.*}} in buggy{{.*}}stack-overflow.c:[[@LINE-6]]
17   // CHECK: Cause: stack tag-mismatch
18   // CHECK: is located in stack of thread
19   // CHECK: Potentially referenced stack objects:
20   // CHECK: Cause: stack-buffer-overflow
21   // CHECK-NEXT: 0x{{.*}} is located 1 bytes after a 64-byte local variable c [0x{{.*}},0x{{.*}}) in buggy {{.*}}stack-overflow.c:
22   // CHECK: Memory tags around the buggy address
23 
24   // CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in buggy
25 }
26