compiler-rt/test/asan/TestCases/ill.cpp

   1 // Test the handle_sigill option.
   2 //
   3 // RUN: %clangxx_asan %s -o %t && %env_asan_opts=handle_sigill=0 not --crash %run %t 2>&1 | FileCheck %s --check-prefix=CHECK0
   4 // RUN: %clangxx_asan %s -o %t && %env_asan_opts=handle_sigill=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1
   5 // REQUIRES: x86-target-arch
   6
   7 #ifdef _WIN32
   8 #include <windows.h>
   9 #endif
  10
  11 int main(int argc, char **argv) {
  12 #ifdef _WIN32
  13   // Sometimes on Windows this test generates a WER fault dialog. Suppress that.
  14   UINT new_flags = SEM_FAILCRITICALERRORS |
  15                    SEM_NOGPFAULTERRORBOX |
  16                    SEM_NOOPENFILEERRORBOX;
  17   // Preserve existing error mode, as discussed at
  18   // http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx
  19   UINT existing_flags = SetErrorMode(new_flags);
  20   SetErrorMode(existing_flags | new_flags);
  21 #endif
  22
  23   if (argc)
  24     __builtin_trap();
  25   // Unreachable code to avoid confusing the Windows unwinder.
  26 #ifdef _WIN32
  27   SetErrorMode(0);
  28 #endif
  29 }
  30 // CHECK0-NOT: ERROR: AddressSanitizer
  31 // CHECK1: ERROR: AddressSanitizer: {{ILL|illegal-instruction}} on unknown address {{0x0*}}