xref: /llvm-project/compiler-rt/test/lsan/TestCases/large_allocation_leak.cpp (revision 49b081c827ee44b8dfaf13333a551b70c128108e)
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: i686,target={{(x86|arm).*}}
8 
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include "sanitizer_common/print_address.h"
12 
main()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: {{.*}}Sanitizer:
23