compiler-rt/test/tsan/Darwin/dlopen.cpp

   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)
  26 extern "C" void foo() {
  27   fprintf(stderr, "Hello world.\n");
  28 }
  29 #else  // defined(SHARED_LIB)
  30 int main(int argc, char *argv[]) {
  31   void *handle = dlopen(argv[1], RTLD_NOW);
  32   fprintf(stderr, "handle = %p\n", handle);
  33   void (*foo)() = (void (*)())dlsym(handle, "foo");
  34   fprintf(stderr, "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.