vendor/compiler-rt/compiler-rt-r224034

1 files changed, 33 insertions, 0 deletions

diff --git a/test/asan/TestCases/Linux/preinit_test.cc b/test/asan/TestCases/Linux/preinit_test.cc
new file mode 100644
index 000000000000..10dde67d6a9b
--- /dev/null
+++ b/test/asan/TestCases/Linux/preinit_test.cc
@@ -0,0 +1,33 @@
+// FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316
+// XFAIL: android
+//
+// RUN: %clangxx      -DFUNC=zzzz %s -shared -o %t.so -fPIC
+// RUN: %clangxx_asan -DFUNC=main %s         -o %t    -Wl,-R. %t.so
+// RUN: %run %t
+
+// GNU driver doesn't handle .so files properly.
+// REQUIRES: Clang
+
+// This test ensures that we call __asan_init early enough.
+// We build a shared library w/o asan instrumentation
+// and the binary with asan instrumentation.
+// Both files include the same header (emulated by -DFUNC here)
+// with C++ template magic which runs global initializer at library load time.
+// The function get() is instrumented with asan, but called
+// before the usual constructors are run.
+// So, we must make sure that __asan_init is executed even earlier.
+//
+// See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56393
+
+struct A {
+  int foo() const { return 0; }
+};
+A get () { return A(); }
+template <class> struct O {
+  static A const e;
+};
+template <class T> A const O <T>::e = get();
+int FUNC() {
+  return O<int>::e.foo();
+}
+