1 files changed, 72 insertions, 0 deletions
diff --git a/test/asan/TestCases/Posix/init-order-dlopen.cc b/test/asan/TestCases/Posix/init-order-dlopen.cc
new file mode 100644
index 0000000000000..6f204775eb4ed
--- /dev/null
+++ b/test/asan/TestCases/Posix/init-order-dlopen.cc
@@ -0,0 +1,72 @@
+// Regression test for
+// https://code.google.com/p/address-sanitizer/issues/detail?id=178
+
+// Assume we're on Darwin and try to pass -U to the linker. If this flag is
+// unsupported, don't use it.
+// RUN: %clangxx_asan -O0 -DSHARED_LIB %s \
+// RUN:     -fPIC -shared -o %t-so.so -Wl,-U,_inc_global || \
+// RUN:     %clangxx_asan -O0 -DSHARED_LIB %s \
+// RUN:         -fPIC -shared -o %t-so.so
+// If the linker doesn't support --export-dynamic (which is ELF-specific),
+// try to link without that option.
+// FIXME: find a better solution.
+// RUN: %clangxx_asan -O0 %s -pthread -o %t -Wl,--export-dynamic || \
+// RUN:     %clangxx_asan -O0 %s -pthread -o %t
+// RUN: ASAN_OPTIONS=strict_init_order=true %run %t 2>&1 | FileCheck %s
+#if !defined(SHARED_LIB)
+#include <dlfcn.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <string>
+
+using std::string;
+
+int foo() {
+  return 42;
+}
+int global = foo();
+
+__attribute__((visibility("default")))
+extern "C"
+void inc_global() {
+  global++;
+}
+
+void *global_poller(void *arg) {
+  while (true) {
+    if (global != 42)
+      break;
+    usleep(100);
+  }
+  return 0;
+}
+
+int main(int argc, char *argv[]) {
+  pthread_t p;
+  pthread_create(&p, 0, global_poller, 0);
+  string path = string(argv[0]) + "-so.so";
+  if (0 == dlopen(path.c_str(), RTLD_NOW)) {
+    fprintf(stderr, "dlerror: %s\n", dlerror());
+    return 1;
+  }
+  pthread_join(p, 0);
+  printf("PASSED\n");
+  // CHECK: PASSED
+  return 0;
+}
+#else  // SHARED_LIB
+#include <stdio.h>
+#include <unistd.h>
+
+extern "C" void inc_global();
+
+int slow_init() {
+  sleep(1);
+  inc_global();
+  return 42;
+}
+
+int slowly_init_glob = slow_init();
+#endif  // SHARED_LIB