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comparison compiler-rt/test/tsan/dlclose.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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147:c2174574ed3a 150:1d019706d866
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(lib);
30 fprintf(stderr, "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("error in dlopen: %s\n", dlerror());
40 return 1;
41 }
42 void *f = dlsym(lib, "sofunc");
43 if (f == 0) {
44 printf("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