1// Checks that on OS X 10.11+ dlopen'ing a RTsanified library from a
2// non-instrumented program exits with a user-friendly message.
3
4// REQUIRES: osx-autointerception
5
6// XFAIL: ios
7
8// RUN: %clangxx -fsanitize=realtime %s -o %t.so -shared -DSHARED_LIB
9// RUN: %clangxx %s -o %t
10
11// RUN: RTSAN_DYLIB_PATH=`%clangxx -fsanitize=realtime %s -### 2>&1 \
12// RUN: | grep "libclang_rt.rtsan_osx_dynamic.dylib" \
13// RUN: | sed -e 's/.*"\(.*libclang_rt.rtsan_osx_dynamic.dylib\)".*/\1/'`
14
15// Launching a non-instrumented binary that dlopen's an instrumented library should fail.
16// RUN: not %run %t %t.so 2>&1 | FileCheck %s --check-prefix=CHECK-FAIL
17// Launching a non-instrumented binary with an explicit DYLD_INSERT_LIBRARIES should work.
18// RUN: DYLD_INSERT_LIBRARIES=$RTSAN_DYLIB_PATH %run %t %t.so 2>&1 | FileCheck %s
19
20// Launching an instrumented binary with the DYLD_INSERT_LIBRARIES env variable has no error
21// RUN: %clangxx -fsanitize=realtime %s -o %t
22// RUN: DYLD_INSERT_LIBRARIES=$RTSAN_DYLIB_PATH %run %t %t.so 2>&1 | FileCheck %s --check-prefix=CHECK-INSTRUMENTED
23
24#include <dlfcn.h>
25#include <stdio.h>
26
27#if defined(SHARED_LIB)
28extern "C" void foo() { fprintf(stderr, "Hello world.\n"); }
29#else // defined(SHARED_LIB)
30int main(int argc, char *argv[]) {
31 void *handle = dlopen(file: argv[1], RTLD_NOW);
32 void (*foo)() = (void (*)())dlsym(handle: handle, name: "foo");
33 foo();
34}
35#endif // defined(SHARED_LIB)
36
37// CHECK: Hello world.
38// CHECK-NOT: ERROR: Interceptors are not working.
39
40// CHECK-FAIL-NOT: Hello world.
41// CHECK-FAIL: ERROR: Interceptors are not working.
42
43// CHECK-INSTRUMENTED-NOT: ERROR: Interceptors are not working
44// CHECK-INSTRUMENTED: Hello world.
45

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