compiler-rt/test/asan/TestCases/Windows/msvc/dll_seh.cpp

   1 // RUN: %clang_cl_asan -Od %p/../dll_host.cpp -Fe%t
   2 //
   3 // Check both -GS and -GS- builds:
   4 // RUN: %clang_cl_asan -GS  -LD -Od %s -Fe%t.dll
   5 // RUN: %run %t %t.dll
   6 //
   7 // RUN: %clang_cl_asan -GS- -LD -Od %s -Fe%t.dll
   8 // RUN: %run %t %t.dll
   9
  10 #include <windows.h>
  11 #include <assert.h>
  12 #include <stdio.h>
  13
  14 // Should just "#include <sanitizer/asan_interface.h>" when C++ exceptions are
  15 // supported and we don't need to use CL.
  16 extern "C" bool __asan_address_is_poisoned(void *p);
  17
  18 void ThrowAndCatch();
  19
  20 __declspec(noinline)
  21 void Throw() {
  22   int local, zero = 0;
  23   fprintf(stderr, "Throw:  %p\n", &local);
  24   local = 5 / zero;
  25 }
  26
  27 __declspec(noinline)
  28 void ThrowAndCatch() {
  29   int local;
  30   __try {
  31     Throw();
  32   } __except(EXCEPTION_EXECUTE_HANDLER) {
  33     fprintf(stderr, "__except:  %p\n", &local);
  34   }
  35 }
  36
  37 extern "C" __declspec(dllexport)
  38 int test_function() {
  39   char x[32];
  40   fprintf(stderr, "Before: %p poisoned: %d\n", &x,
  41           __asan_address_is_poisoned(x + 32));
  42   assert(__asan_address_is_poisoned(x + 32));
  43   ThrowAndCatch();
  44   fprintf(stderr, "After:  %p poisoned: %d\n",  &x,
  45           __asan_address_is_poisoned(x + 32));
  46   // FIXME: Invert this assertion once we fix
  47   // https://code.google.com/p/address-sanitizer/issues/detail?id=258
  48   assert(!__asan_address_is_poisoned(x + 32));
  49   return 0;
  50 }