| // |
| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| // The best case for this test would be that we readelf to get all the symbols |
| // present in each version and make sure they can be referred to in every |
| // following version. We don't have a good way to actually write that test |
| // though. |
| |
| #include <signal.h> |
| |
| // This isn't exposed in the newer headers. |
| extern "C" sighandler_t bsd_signal(int, sighandler_t); |
| |
| void foo() { |
| // signal(2) was an inline (!) referring to bsd_signal until android-21. If |
| // we use it in a static library built against android-9 and then link that |
| // into one built against android-21, we'd get a link error unless |
| // android-21 also provides bsd_signal. We build this against android-21, so |
| // make sure we can resolve a call to bsd_signal. |
| // https://github.com/android-ndk/ndk/issues/160 |
| bsd_signal(SIGINT, NULL); |
| } |
