compiler-rt/test/sanitizer_common/TestCases/Posix/huge_malloc.c

   1 // RUN: %clang -O0 %s -o %t && %env_tool_opts=allocator_may_return_null=1:hard_rss_limit_mb=50:quarantine_size_mb=1 %run %t
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5
   6 // https://github.com/google/sanitizers/issues/981
   7 // UNSUPPORTED: android-26
   8
   9 // FIXME: Hangs.
  10 // UNSUPPORTED: tsan
  11
  12 // Hwasan requires tagging of new allocations, so needs RSS for shadow.
  13 // UNSUPPORTED: hwasan
  14
  15 // FIXME: Something wrong with MADV_FREE or MAP_NORESERVE there.
  16 // UNSUPPORTED: target={{.*solaris.*}}
  17
  18 void *p;
  19
  20 int main(int argc, char **argv) {
  21   for (int i = 0; i < sizeof(void *) * 8; ++i) {
  22     // Calloc avoids MSAN shadow poisoning.
  23     p = calloc(1ull << i, 1);
  24     fprintf(stderr, "%d %llu: %p\n", i, (1ull << i), p);
  25     free(p);
  26   }
  27   return 0;
  28 }