1// Test that unused globals are included in the root set.
2// RUN: %clangxx_lsan -O2 %s -DTEST_LIB -c -o %t.o
3// RUN: %clangxx_lsan -O2 %s %t.o -o %t
4// RUN: %env_lsan_opts="use_stacks=0:use_registers=0:use_globals=1" %run %t 2>&1 | FileCheck %s --implicit-check-not=leak
5// RUN: %env_lsan_opts="" %run %t 2>&1 | FileCheck %s --implicit-check-not=leak
6
7// FIXME: This check is not very important and fails on arm7.
8// %env_lsan_opts="use_stacks=0:use_registers=0:use_globals=0" not %run %t 2>&1 | FileCheck %s --check-prefixes=LEAK
9
10#include <stdio.h>
11#include <stdlib.h>
12#include <string.h>
13
14#ifdef TEST_LIB
15
16void set(char *a) {
17 strcpy(a, "hello");
18}
19
20#else
21
22static void *g;
23
24void set(char *a);
25void foo(void *a) {
26 // Store from a different function to suppress global localization.
27 g = a;
28}
29
30int main() {
31 char a[10];
32 set(a);
33 char *b = strdup(s: a);
34 printf(format: "%p %s\n", b, b);
35 g = b;
36}
37
38#endif
39
40// LEAK: LeakSanitizer: detected memory leaks
41

source code of compiler-rt/test/lsan/TestCases/use_globals_unused.cpp