test/tsan/ignore_lib1.cc

   1 // RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %T/libignore_lib1.so
   2 // RUN: %clangxx_tsan -O1 %s -o %t
   3 // RUN: echo running w/o suppressions:
   4 // RUN: not %t 2>&1 | FileCheck %s --check-prefix=CHECK-NOSUPP
   5 // RUN: echo running with suppressions:
   6 // RUN: TSAN_OPTIONS="$TSAN_OPTIONS suppressions=%s.supp" %t 2>&1 | FileCheck %s --check-prefix=CHECK-WITHSUPP
   7
   8 // Tests that interceptors coming from a dynamically loaded library specified
   9 // in called_from_lib suppression are ignored.
  10
  11 #ifndef LIB
  12
  13 #include <dlfcn.h>
  14 #include <stdlib.h>
  15 #include <stdio.h>
  16 #include <errno.h>
  17 #include <libgen.h>
  18 #include <string>
  19
  20 int main(int argc, char **argv) {
  21   std::string lib = std::string(dirname(argv[0])) + "/libignore_lib1.so";
  22   void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
  23   if (h == 0)
  24     exit(printf("failed to load the library (%d)\n", errno));
  25   void (*f)() = (void(*)())dlsym(h, "libfunc");
  26   if (f == 0)
  27     exit(printf("failed to find the func (%d)\n", errno));
  28   f();
  29 }
  30
  31 #else  // #ifdef LIB
  32
  33 #include "ignore_lib_lib.h"
  34
  35 #endif  // #ifdef LIB
  36
  37 // CHECK-NOSUPP: WARNING: ThreadSanitizer: data race
  38 // CHECK-NOSUPP: OK
  39
  40 // CHECK-WITHSUPP-NOT: WARNING: ThreadSanitizer: data race
  41 // CHECK-WITHSUPP: OK
  42