compiler-rt/test/msan/dtor-vtable.cpp

   1 // RUN: %clangxx_msan %s -O0 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && %run %t
   2
   3 // RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && %run %t
   4
   5 // RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && %run %t
   6
   7 // RUN: %clangxx_msan %s -DVPTRA=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && not %run %t
   8
   9 // RUN: %clangxx_msan %s -DVPTRCA=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && not %run %t
  10
  11 // RUN: %clangxx_msan %s -DVPTRCB=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && not %run %t
  12
  13 // RUN: %clangxx_msan %s -DVPTRC=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && not %run %t
  14
  15 // Expected to quit due to invalid access when invoking
  16 // function using vtable.
  17
  18 #include <sanitizer/msan_interface.h>
  19 #include <stdio.h>
  20 #include <assert.h>
  21
  22 class A {
  23 public:
  24   int x;
  25   ~A() {}
  26   virtual void A_Foo() {}
  27 };
  28
  29 class B {
  30  public:
  31   int y;
  32   ~B() {}
  33   virtual void B_Foo() {}
  34 };
  35
  36 class C : public A, public B {
  37  public:
  38   int z;
  39   ~C() {}
  40   virtual void C_Foo() {}
  41 };
  42
  43 int main() {
  44   A *a = new A();
  45   a->~A();
  46
  47   // Shouldn't be allowed to invoke function via vtable.
  48 #ifdef VPTRA
  49   a->A_Foo();
  50 #endif
  51
  52   C *c = new C();
  53   c->~C();
  54
  55 #ifdef VPTRCA
  56   c->A_Foo();
  57 #endif
  58
  59 #ifdef VPTRCB
  60   c->B_Foo();
  61 #endif
  62
  63 #ifdef VPTRC
  64   c->C_Foo();
  65 #endif
  66
  67   return 0;
  68 }