test/asan/TestCases/mmap_limit_mb.cc

   1 // Test the mmap_limit_mb flag.
   2 //
   3 // RUN: %clangxx_asan -std=c++11 -O2 %s -o %t
   4 // RUN: %t 100 16
   5 // RUN: %t 100 1000000
   6 // RUN: ASAN_OPTIONS=mmap_limit_mb=500 %t 100 16
   7 // RUN: ASAN_OPTIONS=mmap_limit_mb=500 %t 100 1000000
   8 // RUN: ASAN_OPTIONS=mmap_limit_mb=500 not %t 500 16 2>&1 | FileCheck %s
   9 // RUN: ASAN_OPTIONS=mmap_limit_mb=500 not %t 500 1000000 2>&1 | FileCheck %s
  10
  11 #include <assert.h>
  12 #include <stdlib.h>
  13 #include <stdio.h>
  14
  15 #include <algorithm>
  16 #include <vector>
  17
  18 int main(int argc, char **argv) {
  19   assert(argc == 3);
  20   long total_mb = atoi(argv[1]);
  21   long allocation_size = atoi(argv[2]);
  22   std::vector<char *> v;
  23   for (long total = total_mb << 20; total > 0; total -= allocation_size)
  24     v.push_back(new char[allocation_size]);
  25   for (auto p : v) delete[] p;
  26   printf("PASS\n");
  27   // CHECK: AddressSanitizer CHECK failed{{.*}}total_mmaped{{.*}}mmap_limit_mb
  28   return 0;
  29 }