compiler-rt/test/gwp_asan/repeated_alloc.cpp

   1 // REQUIRES: gwp_asan
   2 // This test ensures that normal allocation/memory access/deallocation works
   3 // as expected and we didn't accidentally break the supporting allocator.
   4
   5 // RUN: %clangxx_gwp_asan %s -o %t
   6 // RUN: %env_scudo_options=GWP_ASAN_MaxSimultaneousAllocations=1 %run %t
   7 // RUN: %env_scudo_options=GWP_ASAN_MaxSimultaneousAllocations=2 %run %t
   8 // RUN: %env_scudo_options=GWP_ASAN_MaxSimultaneousAllocations=11 %run %t
   9 // RUN: %env_scudo_options=GWP_ASAN_MaxSimultaneousAllocations=12 %run %t
  10 // RUN: %env_scudo_options=GWP_ASAN_MaxSimultaneousAllocations=13 %run %t
  11
  12 #include <cstdlib>
  13
  14 int main() {
  15   void* Pointers[16];
  16   for (unsigned i = 0; i < 16; ++i) {
  17     char *Ptr = reinterpret_cast<char*>(malloc(1 << i));
  18     Pointers[i] = Ptr;
  19     *Ptr = 0;
  20     Ptr[(1 << i) - 1] = 0;
  21   }
  22
  23   for (unsigned i = 0; i < 16; ++i) {
  24     free(Pointers[i]);
  25   }
  26
  27   return 0;
  28 }