compiler-rt/test/hwasan/TestCases/use-after-scope-dtor-order.cpp

   1 // This is the ASAN test of the same name ported to HWAsan.
   2
   3 // RUN: %clangxx_hwasan -O1 %s -o %t && \
   4 // RUN:     not %run %t 2>&1 | FileCheck %s
   5
   6 // REQUIRES: aarch64-target-arch || riscv64-target-arch
   7
   8 #include <stdio.h>
   9
  10 struct IntHolder {
  11   explicit IntHolder(int *val = 0) : val_(val) {}
  12   __attribute__((noinline)) ~IntHolder() {
  13     printf("Value: %d\n", *val_); // BOOM
  14     // CHECK: ERROR: HWAddressSanitizer: tag-mismatch
  15     // CHECK:  #0 0x{{.*}} in IntHolder::~IntHolder{{.*}}.cpp:[[@LINE-2]]
  16   }
  17   void set(int *val) { val_ = val; }
  18   int *get() { return val_; }
  19
  20   int *val_;
  21 };
  22
  23 int main(int argc, char *argv[]) {
  24   // It is incorrect to use "x" int IntHolder destructor, because "x" is
  25   // "destroyed" earlier as it's declared later.
  26   IntHolder holder;
  27   int x = argc;
  28   holder.set(&x);
  29   return 0;
  30 }