compiler-rt/test/scudo/malloc.cpp

   1 // RUN: %clangxx_scudo %s -lstdc++ -o %t
   2 // RUN: %run %t 2>&1
   3
   4 // Tests that a regular workflow of allocation, memory fill and free works as
   5 // intended. Tests various sizes serviced by the primary and secondary
   6 // allocators.
   7
   8 #include <assert.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11
  12 #include <vector>
  13
  14 int main(int argc, char **argv) {
  15   void *p;
  16   std::vector<ssize_t> sizes{1, 8, 16, 32, 1024, 32768,
  17                              1 << 16, 1 << 17, 1 << 20, 1 << 24};
  18   std::vector<int> offsets{1, 0, -1, -7, -8, -15, -16, -31, -32};
  19
  20   p = malloc(0);
  21   assert(p);
  22   free(p);
  23   for (ssize_t size : sizes) {
  24     for (int offset : offsets) {
  25       ssize_t actual_size = size + offset;
  26       if (actual_size <= 0)
  27         continue;
  28       p = malloc(actual_size);
  29       assert(p);
  30       memset(p, 0xff, actual_size);
  31       free(p);
  32     }
  33   }
  34
  35   return 0;
  36 }