1 | // RUN: %clangxx_tsan -O1 %s -DBUILD_SO -fPIC -shared -o %t-so.so |
2 | // RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t && %run %t 2>&1 | FileCheck %s |
3 | |
4 | // Test case for |
5 | // https://github.com/google/sanitizers/issues/487 |
6 | |
7 | #ifdef BUILD_SO |
8 | |
9 | #include <stdio.h> |
10 | |
11 | extern "C" |
12 | void sofunc() { |
13 | fprintf(stderr, "HELLO FROM SO\n" ); |
14 | } |
15 | |
16 | #else // BUILD_SO |
17 | |
18 | #include <dlfcn.h> |
19 | #include <stdio.h> |
20 | #include <stddef.h> |
21 | #include <unistd.h> |
22 | #include <string> |
23 | |
24 | void *lib; |
25 | void *lib2; |
26 | |
27 | struct Closer { |
28 | ~Closer() { |
29 | dlclose(handle: lib); |
30 | fprintf(stderr, format: "CLOSED SO\n" ); |
31 | } |
32 | }; |
33 | static Closer c; |
34 | |
35 | int main(int argc, char *argv[]) { |
36 | lib = dlopen((std::string(argv[0]) + std::string("-so.so" )).c_str(), |
37 | RTLD_NOW|RTLD_NODELETE); |
38 | if (lib == 0) { |
39 | printf(format: "error in dlopen: %s\n" , dlerror()); |
40 | return 1; |
41 | } |
42 | void *f = dlsym(handle: lib, name: "sofunc" ); |
43 | if (f == 0) { |
44 | printf(format: "error in dlsym: %s\n" , dlerror()); |
45 | return 1; |
46 | } |
47 | ((void(*)())f)(); |
48 | return 0; |
49 | } |
50 | |
51 | #endif // BUILD_SO |
52 | |
53 | // CHECK: HELLO FROM SO |
54 | // CHECK-NOT: Inconsistency detected by ld.so |
55 | // CHECK: CLOSED SO |
56 | |
57 | |