| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Address Sanitizer doesn't instrument weak symbols on Linux. When a key |
| // function is defined for bad_function_call's vtable, its typeinfo and vtable |
| // will be defined as strong symbols in the library and weak symbols in other |
| // translation units. Only the strong symbol will be instrumented, increasing |
| // its size (due to the redzone) and leading to a serious ODR violation |
| // resulting in a crash. |
| // Some relevant bugs: |
| // https://github.com/google/sanitizers/issues/1017 |
| // https://github.com/google/sanitizers/issues/619 |
| // https://github.com/google/sanitizers/issues/398 |
| // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68016 |
| // UNSUPPORTED: c++03, asan |
| |
| // <functional> |
| |
| #include <functional> |
| |
| #include "test_macros.h" |
| |
| struct Incomplete; |
| template<class T> struct Holder { T t; }; |
| typedef Holder<Incomplete> *Ptr; |
| |
| Ptr no_args() { return nullptr; } |
| Ptr one_arg(Ptr p) { return p; } |
| Ptr two_args(Ptr p, Ptr) { return p; } |
| Ptr three_args(Ptr p, Ptr, Ptr) { return p; } |
| Ptr four_args(Ptr p, Ptr, Ptr, Ptr) { return p; } |
| |
| void one_arg_void(Ptr) { } |
| |
| int main(int, char**) |
| { |
| Ptr x = nullptr; |
| std::function<Ptr()> f(no_args); f(); |
| std::function<Ptr(Ptr)> g(one_arg); g(x); |
| std::function<void(Ptr)> h(one_arg_void); h(x); |
| return 0; |
| } |