Function do_malloc

libs/tcmalloc-1.4/src/tcmalloc.cc:601–615

}

inline void* do_malloc(size_t size) {
  void* ret = NULL;

  // The following call forces module initialization
  ThreadCache* heap = ThreadCache::GetCache();
  if (size <= kMaxSize) {
    // The common case, and also the simplest.  This just pops the
    // size-appropriate freelist, after replenishing it if it's empty.
    ret = CheckedMallocResult(heap->Allocate(size));
  } else {
    ret = do_malloc_pages(tcmalloc::pages(size));
  }
  if (ret == NULL) errno = ENOMEM;
  return ret;
}

inline void* do_calloc(size_t n, size_t elem_size) {
  // Overflow check