compiler-rt/test/lsan/TestCases/large_allocation_leak.cpp

   1 // Test that LargeMmapAllocator's chunks aren't reachable via some internal data structure.
   2 // RUN: %clangxx_lsan %s -o %t
   3 // RUN: %env_lsan_opts=report_objects=1:use_stacks=0:use_registers=0 not %run %t 2>&1 | FileCheck %s
   4
   5 // For 32 bit LSan it's pretty likely that large chunks are "reachable" from some
   6 // internal data structures (e.g. Glibc global data).
   7 // UNSUPPORTED: x86,i686,arm
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include "sanitizer_common/print_address.h"
  12
  13 int main() {
  14   // maxsize in primary allocator is always less than this (1 << 25).
  15   void *large_alloc = malloc(33554432);
  16   print_address("Test alloc: ", 1, large_alloc);
  17   return 0;
  18 }
  19 // CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
  20 // CHECK: LeakSanitizer: detected memory leaks
  21 // CHECK: [[ADDR]] (33554432 bytes)
  22 // CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: