1 // Test for __lsan_do_leak_check(). We test it by making the leak check run
2 // before global destructors, which also tests compatibility with HeapChecker's
3 // "normal" mode (LSan runs in "strict" mode by default).
4 // RUN: LSAN_BASE="use_stacks=0:use_registers=0"
5 // RUN: %clangxx_lsan %s -o %t
6 // RUN: %env_lsan_opts=$LSAN_BASE not %run %t 2>&1 | FileCheck --check-prefix=CHECK-strict %s
7 // RUN: %env_lsan_opts=$LSAN_BASE not %run %t foo 2>&1 | FileCheck --check-prefix=CHECK-normal %s
8
9 // Investigate why LeakyGlobal leak does show
10 // UNSUPPORTED: arm-linux || armhf-linux
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <sanitizer/lsan_interface.h>
15
16 struct LeakyGlobal {
LeakyGlobalLeakyGlobal17 LeakyGlobal() {
18 p = malloc(1337);
19 }
~LeakyGlobalLeakyGlobal20 ~LeakyGlobal() {
21 p = 0;
22 }
23 void *p;
24 };
25
26 LeakyGlobal leaky_global;
27
main(int argc,char * argv[])28 int main(int argc, char *argv[]) {
29 // Register leak check to run before global destructors.
30 if (argc > 1)
31 atexit(&__lsan_do_leak_check);
32 void *p = malloc(666);
33 printf("Test alloc: %p\n", p);
34 printf("Test alloc in leaky global: %p\n", leaky_global.p);
35 return 0;
36 }
37
38 // CHECK-strict: SUMMARY: {{(Leak|Address)}}Sanitizer: 2003 byte(s) leaked in 2 allocation(s)
39 // CHECK-normal: SUMMARY: {{(Leak|Address)}}Sanitizer: 666 byte(s) leaked in 1 allocation(s)
40