src/libcompiler_builtins/compiler-rt/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: %deflake %run %t | FileCheck %s --check-prefix=CHECK-NOSUPP
   5 // RUN: echo running with suppressions:
   6 // RUN: %env_tsan_opts=suppressions='%s.supp' %run %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 // REQUIRES: stable-runtime
  12
  13 #ifndef LIB
  14
  15 #include <dlfcn.h>
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <errno.h>
  19 #include <libgen.h>
  20 #include <string>
  21
  22 int main(int argc, char **argv) {
  23   std::string lib = std::string(dirname(argv[0])) + "/libignore_lib1.so";
  24   void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
  25   if (h == 0)
  26     exit(printf("failed to load the library (%d)\n", errno));
  27   void (*f)() = (void(*)())dlsym(h, "libfunc");
  28   if (f == 0)
  29     exit(printf("failed to find the func (%d)\n", errno));
  30   f();
  31 }
  32
  33 #else  // #ifdef LIB
  34
  35 #include "ignore_lib_lib.h"
  36
  37 #endif  // #ifdef LIB
  38
  39 // CHECK-NOSUPP: WARNING: ThreadSanitizer: data race
  40 // CHECK-NOSUPP: OK
  41
  42 // CHECK-WITHSUPP-NOT: WARNING: ThreadSanitizer: data race
  43 // CHECK-WITHSUPP: OK
  44