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':verbosity=1 %run %t-dir/executable 2>&1 | FileCheck %s
7
8// Tests that unloading of a library matched against called_from_lib suppression
9// is 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;
26 void (*f)();
27 // Try opening, closing and reopening the ignored lib.
28 for (unsigned int k = 0; k < 2; k++) {
29 h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
30 if (h == 0)
31 exit(status: printf(format: "failed to load the library (%d)\n", errno));
32 f = (void (*)())dlsym(handle: h, name: "libfunc");
33 if (f == 0)
34 exit(status: printf(format: "failed to find the func (%d)\n", errno));
35 f();
36 dlclose(handle: h);
37 }
38 fprintf(stderr, format: "OK\n");
39}
40
41#else // #ifdef LIB
42
43# include "ignore_lib_lib.h"
44
45#endif // #ifdef LIB
46
47// CHECK: Matched called_from_lib suppression 'ignore_lib3.so'
48// CHECK: library '{{.*}}ignore_lib3.so' that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
49// CHECK: Matched called_from_lib suppression 'ignore_lib3.so'
50// CHECK: library '{{.*}}ignore_lib3.so' that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
51// CHECK: OK
52

source code of compiler-rt/test/tsan/ignore_lib3.cpp