compiler-rt/test/asan/TestCases/Linux/init-order-dlopen.cpp

   1 // Regression test for
   2 // https://code.google.com/p/address-sanitizer/issues/detail?id=178
   3
   4 // RUN: %clangxx_asan -O0 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
   5 // RUN: %clangxx_asan -O0 %s %libdl -Wl,--export-dynamic -o %t
   6 // RUN: %env_asan_opts=strict_init_order=true %run %t 2>&1
   7
   8 // dlopen() can not be intercepted on Android, making strict_init_order nearly
   9 // useless there.
  10 // UNSUPPORTED: android
  11
  12 #if defined(SHARED_LIB)
  13 #include <stdio.h>
  14
  15 struct Bar {
  16   Bar(int val) : val(val) { printf("Bar::Bar(%d)\n", val); }
  17   int val;
  18 };
  19
  20 int get_foo_val();
  21 Bar global_bar(get_foo_val());
  22 #else  // SHARED LIB
  23 #include <dlfcn.h>
  24 #include <stdio.h>
  25 #include <string>
  26 struct Foo {
  27   Foo() : val(42) { printf("Foo::Foo()\n"); }
  28   int val;
  29 };
  30
  31 Foo global_foo;
  32
  33 int get_foo_val() {
  34   return global_foo.val;
  35 }
  36
  37 int main(int argc, char *argv[]) {
  38   std::string path = std::string(argv[0]) + "-so.so";
  39   void *handle = dlopen(path.c_str(), RTLD_NOW);
  40   if (!handle) {
  41     printf("error in dlopen(): %s\n", dlerror());
  42     return 1;
  43   }
  44   printf("%d\n", get_foo_val());
  45   return 0;
  46 }
  47 #endif  // SHARED_LIB