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

   1 // Ensure that operator new/delete are still replaceable using shared-libsan.
   2
   3 // FIXME: Weak symbols aren't supported on Windows, although some code in
   4 // compiler-rt already exists to solve this problem. We should probably define
   5 // the new/delete interceptors as "weak" using those workarounds as well.
   6 // UNSUPPORTED: target={{.*windows.*}}
   7
   8 // RUN: %clangxx %s -o %t -fsanitize=address -shared-libsan && not %run %t 2>&1 | FileCheck %s
   9
  10 #include <cstdio>
  11 #include <cstdlib>
  12 #include <new>
  13
  14 void *operator new[](size_t size) {
  15   fprintf(stderr, "replaced new\n");
  16   return malloc(size);
  17 }
  18
  19 void operator delete[](void *ptr) noexcept {
  20   fprintf(stderr, "replaced delete\n");
  21   return free(ptr);
  22 }
  23
  24 int main(int argc, char **argv) {
  25   // CHECK: replaced new
  26   char *x = new char[5];
  27   // CHECK: replaced delete
  28   delete[] x;
  29   // CHECK: ERROR: AddressSanitizer
  30   *x = 13;
  31   return 0;
  32 }