test/tsan/ignore_lib3.cc

   1 // RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %T/libignore_lib3.so
   2 // RUN: %clangxx_tsan -O1 %s -o %t
   3 // RUN: TSAN_OPTIONS="$TSAN_OPTIONS suppressions=%s.supp" not %run %t 2>&1 | FileCheck %s
   4
   5 // Tests that unloading of a library matched against called_from_lib suppression
   6 // causes program crash (this is not supported).
   7
   8 #ifndef LIB
   9
  10 #include <dlfcn.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <errno.h>
  14 #include <libgen.h>
  15 #include <string>
  16
  17 int main(int argc, char **argv) {
  18   std::string lib = std::string(dirname(argv[0])) + "/libignore_lib3.so";
  19   void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
  20   dlclose(h);
  21   fprintf(stderr, "OK\n");
  22 }
  23
  24 #else  // #ifdef LIB
  25
  26 extern "C" void libfunc() {
  27 }
  28
  29 #endif  // #ifdef LIB
  30
  31 // CHECK: ThreadSanitizer: library {{.*}} that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
  32 // CHECK-NOT: OK
  33