src/compiler-rt/test/asan/TestCases/Darwin/dladdr-demangling.cc

   1 // In a non-forking sandbox, we fallback to dladdr(). Test that we provide
   2 // properly demangled C++ names in that case.
   3
   4 // RUN: %clangxx_asan -O0 %s -o %t
   5 // RUN: not %run %t 2>&1 | FileCheck %s
   6 // RUN: %env_asan_opts=verbosity=2 not %run sandbox-exec -p '(version 1)(allow default)(deny process-fork)' %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-DLADDR
   7
   8 #include <stdlib.h>
   9
  10 class MyClass {
  11  public:
  12   int my_function(int n) {
  13     char *x = (char*)malloc(n * sizeof(char));
  14     free(x);
  15     return x[5];
  16     // CHECK-DLADDR: Using dladdr symbolizer
  17     // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
  18     // CHECK: {{READ of size 1 at 0x.* thread T0}}
  19     // CHECK-DLADDR: failed to fork
  20     // CHECK: {{    #0 0x.* in MyClass::my_function\(int\)}}
  21     // CHECK: {{freed by thread T0 here:}}
  22     // CHECK: {{    #0 0x.* in wrap_free}}
  23     // CHECK: {{    #1 0x.* in MyClass::my_function\(int\)}}
  24     // CHECK: {{previously allocated by thread T0 here:}}
  25     // CHECK: {{    #0 0x.* in wrap_malloc}}
  26     // CHECK: {{    #1 0x.* in MyClass::my_function\(int\)}}
  27   }
  28 };
  29
  30 int main() {
  31   MyClass o;
  32   return o.my_function(10);
  33 }