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

   1 // This is the ASAN test of the same name ported to HWAsan.
   2
   3 // RUN: %clangxx_hwasan -std=c++11 -O0 %s -o %t
   4 // RUN: %clangxx_hwasan -fno-exceptions -std=c++11 -O0 %s -o %t-noexcept
   5
   6 // RUN: not %run %t 0 2>&1 | FileCheck %s
   7 // RUN: not %run %t 1 2>&1 | FileCheck %s
   8 // RUN: not %run %t 2 2>&1 | FileCheck %s
   9 // RUN: not %run %t 3 2>&1 | FileCheck %s
  10 // RUN: not %run %t 4 2>&1 | FileCheck %s
  11 // RUN: not %run %t 5 2>&1 | FileCheck %s
  12 // RUN: not %run %t 6 2>&1 | FileCheck %s
  13 // RUN: not %run %t 7 2>&1 | FileCheck %s
  14 // RUN: not %run %t 8 2>&1 | FileCheck %s
  15 // RUN: not %run %t 9 2>&1 | FileCheck %s
  16 // RUN: not %run %t 10 2>&1 | FileCheck %s
  17
  18 // RUN: not %run %t-noexcept 0 2>&1 | FileCheck %s
  19 // RUN: not %run %t-noexcept 1 2>&1 | FileCheck %s
  20 // RUN: not %run %t-noexcept 2 2>&1 | FileCheck %s
  21 // RUN: not %run %t-noexcept 3 2>&1 | FileCheck %s
  22 // RUN: not %run %t-noexcept 4 2>&1 | FileCheck %s
  23 // RUN: not %run %t-noexcept 5 2>&1 | FileCheck %s
  24 // RUN: not %run %t-noexcept 6 2>&1 | FileCheck %s
  25 // RUN: not %run %t-noexcept 7 2>&1 | FileCheck %s
  26 // RUN: not %run %t-noexcept 8 2>&1 | FileCheck %s
  27 // RUN: not %run %t-noexcept 9 2>&1 | FileCheck %s
  28 // RUN: not %run %t-noexcept 10 2>&1 | FileCheck %s
  29
  30 // REQUIRES: aarch64-target-arch || riscv64-target-arch
  31
  32 #include <stdlib.h>
  33 #include <string>
  34 #include <vector>
  35
  36 template <class T>
  37 struct Ptr {
  38   void Store(T *ptr) { t = ptr; }
  39
  40   void Access() { *t = {}; }
  41
  42   T *t;
  43 };
  44
  45 template <class T, size_t N>
  46 struct Ptr<T[N]> {
  47   using Type = T[N];
  48   void Store(Type *ptr) { t = *ptr; }
  49
  50   void Access() { *t = {}; }
  51
  52   T *t;
  53 };
  54
  55 template <class T>
  56 __attribute__((noinline)) void test() {
  57   Ptr<T> ptr;
  58   {
  59     T x;
  60     ptr.Store(&x);
  61   }
  62
  63   ptr.Access();
  64   // CHECK: ERROR: HWAddressSanitizer: tag-mismatch
  65   // CHECK:  #{{[0-9]+}} 0x{{.*}} in {{(void )?test.*\((void)?\) .*}}use-after-scope-types.cpp
  66   // CHECK: Cause: stack tag-mismatch
  67 }
  68
  69 int main(int argc, char **argv) {
  70   using Tests = void (*)();
  71   Tests tests[] = {
  72       &test<bool>,
  73       &test<char>,
  74       &test<int>,
  75       &test<double>,
  76       &test<float>,
  77       &test<void *>,
  78       &test<std::vector<std::string>>,
  79       &test<int[3]>,
  80       &test<int[1000]>,
  81       &test<char[3]>,
  82       &test<char[1000]>,
  83   };
  84
  85   int n = atoi(argv[1]);
  86   if (n == sizeof(tests) / sizeof(tests[0])) {
  87     for (auto te : tests)
  88       te();
  89   } else {
  90     tests[n]();
  91   }
  92
  93   return 0;
  94 }