1// Checks that on OS X 10.11+ (where we do not re-exec anymore, because
2// interceptors work automatically), dlopen'ing a TSanified library from a
3// non-instrumented program exits with a user-friendly message.
4
5// REQUIRES: osx-autointerception
6
7// XFAIL: ios
8
9// RUN: %clangxx_tsan %s -o %t.so -shared -DSHARED_LIB
10// RUN: %clangxx_tsan -fno-sanitize=thread %s -o %t
11
12// RUN: TSAN_DYLIB_PATH=`%clangxx_tsan %s -### 2>&1 \
13// RUN: | grep "libclang_rt.tsan_osx_dynamic.dylib" \
14// RUN: | sed -e 's/.*"\(.*libclang_rt.tsan_osx_dynamic.dylib\)".*/\1/'`
15
16// Launching a non-instrumented binary that dlopen's an instrumented library should fail.
17// RUN: not %run %t %t.so 2>&1 | FileCheck %s --check-prefix=CHECK-FAIL
18// Launching a non-instrumented binary with an explicit DYLD_INSERT_LIBRARIES should work.
19// RUN: DYLD_INSERT_LIBRARIES=$TSAN_DYLIB_PATH %run %t %t.so 2>&1 | FileCheck %s
20
21#include <dlfcn.h>
22#include <pthread.h>
23#include <stdio.h>
24
25#if defined(SHARED_LIB)
26extern "C" void foo() {
27 fprintf(stderr, "Hello world.\n");
28}
29#else // defined(SHARED_LIB)
30int main(int argc, char *argv[]) {
31 void *handle = dlopen(file: argv[1], RTLD_NOW);
32 fprintf(stderr, format: "handle = %p\n", handle);
33 void (*foo)() = (void (*)())dlsym(handle: handle, name: "foo");
34 fprintf(stderr, format: "foo = %p\n", foo);
35 foo();
36}
37#endif // defined(SHARED_LIB)
38
39// CHECK: Hello world.
40// CHECK-NOT: ERROR: Interceptors are not working.
41
42// CHECK-FAIL-NOT: Hello world.
43// CHECK-FAIL: ERROR: Interceptors are not working.
44

source code of compiler-rt/test/tsan/Darwin/dlopen.cpp