compiler-rt/test/lsan/TestCases/thread_context_crash.cpp

   1 // Check that concurent GetCurrentThread does not crash.
   2 // RUN: %clangxx_lsan -O3 -pthread %s -o %t && %run %t 100
   3
   4 // REQUIRES: lsan-standalone
   5
   6 // For unknown reason linker can't resolve GetCurrentThread on
   7 // https://ci.chromium.org/p/chromium/builders/try/mac_upload_clang.
   8 // UNSUPPORTED: darwin
   9
  10 #include <pthread.h>
  11 #include <stdlib.h>
  12 #include <vector>
  13
  14 #include <sanitizer/common_interface_defs.h>
  15
  16 namespace __lsan {
  17 class ThreadContextLsanBase *GetCurrentThread();
  18 }
  19
  20 void *try_to_crash(void *args) {
  21   for (int i = 0; i < 100000; ++i)
  22     __lsan::GetCurrentThread();
  23   return nullptr;
  24 }
  25
  26 int main(int argc, char **argv) {
  27   std::vector<pthread_t> threads;
  28   for (int i = 0; i < atoi(argv[1]); ++i) {
  29     threads.resize(10);
  30     for (auto &thread : threads)
  31       pthread_create(&thread, 0, try_to_crash, NULL);
  32
  33     for (auto &thread : threads)
  34       pthread_join(thread, nullptr);
  35   }
  36   return 0;
  37 }