compiler-rt/test/sanitizer_common/TestCases/Linux/malloc_usable_size.c

   1 // RUN: %clang -O2 %s -o %t && %run %t
   2
   3 // Must not be implemented, no other reason to install interceptors.
   4 // XFAIL: ubsan
   5
   6 #include <assert.h>
   7 #include <malloc.h>
   8 #include <sanitizer/allocator_interface.h>
   9 #include <stdlib.h>
  10
  11 void *p;
  12
  13 int main() {
  14   assert(__sanitizer_get_allocated_size(NULL) == 0);
  15   assert(malloc_usable_size(NULL) == 0);
  16
  17   int size = 1;
  18   p = malloc(size);
  19   assert(__sanitizer_get_allocated_size(p) == size);
  20   assert(__sanitizer_get_allocated_size_fast(p) == size);
  21   assert(malloc_usable_size(p) == size);
  22   free(p);
  23
  24   size = 1234567;
  25   p = malloc(size);
  26   assert(__sanitizer_get_allocated_size(p) == size);
  27   assert(__sanitizer_get_allocated_size_fast(p) == size);
  28   assert(malloc_usable_size(p) == size);
  29   free(p);
  30   return 0;
  31 }