compiler-rt/test/asan/TestCases/non-executable-pc.cpp

   1 // RUN: %clangxx_asan %s -o %t
   2 // RUN: not %run %t 0 2>&1 | FileCheck %s
   3 // RUN: not %run %t n 2>&1 | FileCheck %s -check-prefix=CHECK -check-prefix=NON_EXEC
   4
   5 // Not every OS lists every memory region in MemoryMappingLayout.
   6 // This is limited to x86_64 because some architectures (e.g. the s390 before
   7 // the z14) don't support NX mappings and others like PowerPC use function
   8 // descriptors.
   9 // REQUIRES: x86-target-arch && (linux || freebsd || netbsd)
  10
  11 #include <assert.h>
  12
  13 typedef void void_f();
  14 int main(int argc, char **argv) {
  15   char *array = new char[42];
  16   void_f *func;
  17   assert(argc > 1);
  18   if (argv[1][0] == '0') {
  19     func = (void_f *)0x04;
  20   } else {
  21     assert(argv[1][0] == 'n');
  22     func = (void_f *)array;
  23   }
  24
  25   func();
  26   // CHECK: DEADLYSIGNAL
  27   // CHECK: {{AddressSanitizer: (SEGV|access-violation).*(address|pc) }}
  28   // NON_EXEC: PC is at a non-executable region. Maybe a wild jump?
  29   return 0;
  30 }