1// RUN: rm -rf %t-dir
2// RUN: mkdir %t-dir
3
4// RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib3.so
5// RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t-dir/executable
6// RUN: %env_tsan_opts=suppressions='%s.supp' %deflake %run %t-dir/executable | FileCheck %s
7
8// Tests that unloading of a library matched against called_from_lib suppression
9// causes program crash (this is not supported).
10
11// Some aarch64 kernels do not support non executable write pages
12// REQUIRES: stable-runtime
13
14#ifndef LIB
15
16#include <dlfcn.h>
17#include <stdlib.h>
18#include <stdio.h>
19#include <errno.h>
20#include <libgen.h>
21#include <string>
22
23int main(int argc, char **argv) {
24 std::string lib = std::string(dirname(argv[0])) + "/libignore_lib3.so";
25 void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
26 dlclose(h);
27 fprintf(stderr, "OK\n");
28}
29
30#else // #ifdef LIB
31
32extern "C" void libfunc() {
33}
34
35#endif // #ifdef LIB
36
37// CHECK: ThreadSanitizer: library {{.*}} that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
38// CHECK-NOT: OK
39
40