compiler-rt/test/hwasan/TestCases/stack-overflow.c

   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
   7 __attribute((noinline)) void buggy() {
   8   char c[64];
   9   char *volatile p = c;
  10   p[65] = 0;
  11 }
  12
  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 }