compiler-rt/test/tsan/ignore_lib3.cpp

   1 // RUN: rm -rf %t-dir
   2 // RUN: mkdir %t-dir
   3
   4 // RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib3.so
   5 // RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t-dir/executable
   6 // RUN: %env_tsan_opts=suppressions='%s.supp' %deflake %run %t-dir/executable | FileCheck %s
   7
   8 // Tests that unloading of a library matched against called_from_lib suppression
   9 // causes program crash (this is not supported).
  10
  11 // Some aarch64 kernels do not support non executable write pages
  12 // REQUIRES: stable-runtime
  13
  14 #ifndef LIB
  15
  16 #include <dlfcn.h>
  17 #include <stdlib.h>
  18 #include <stdio.h>
  19 #include <errno.h>
  20 #include <libgen.h>
  21 #include <string>
  22
  23 int main(int argc, char **argv) {
  24   std::string lib = std::string(dirname(argv[0])) + "/libignore_lib3.so";
  25   void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
  26   dlclose(h);
  27   fprintf(stderr, "OK\n");
  28 }
  29
  30 #else  // #ifdef LIB
  31
  32 extern "C" void libfunc() {
  33 }
  34
  35 #endif  // #ifdef LIB
  36
  37 // CHECK: ThreadSanitizer: library {{.*}} that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
  38 // CHECK-NOT: OK
  39