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':verbosity=1 %run %t-dir/executable 2>&1 | FileCheck %s
   7
   8 // Tests that unloading of a library matched against called_from_lib suppression
   9 // is 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;
  26   void (*f)();
  27   // Try opening, closing and reopening the ignored lib.
  28   for (unsigned int k = 0; k < 2; k++) {
  29     h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
  30     if (h == 0)
  31       exit(printf("failed to load the library (%d)\n", errno));
  32     f = (void (*)())dlsym(h, "libfunc");
  33     if (f == 0)
  34       exit(printf("failed to find the func (%d)\n", errno));
  35     f();
  36     dlclose(h);
  37   }
  38   fprintf(stderr, "OK\n");
  39 }
  40
  41 #else  // #ifdef LIB
  42
  43 #  include "ignore_lib_lib.h"
  44
  45 #endif  // #ifdef LIB
  46
  47 // CHECK: Matched called_from_lib suppression 'ignore_lib3.so'
  48 // CHECK: library '{{.*}}ignore_lib3.so' that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
  49 // CHECK: Matched called_from_lib suppression 'ignore_lib3.so'
  50 // CHECK: library '{{.*}}ignore_lib3.so' that was matched against called_from_lib suppression 'ignore_lib3.so' is unloaded
  51 // CHECK: OK