| /* |
| * 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. |
| */ |
| |
| #include <dlfcn.h> |
| #include <stdlib.h> |
| |
| static void* g_libc_close_ptr; |
| |
| static void __attribute__((constructor)) __libc_close_lookup() { |
| g_libc_close_ptr = dlsym(RTLD_NEXT, "close"); |
| } |
| |
| // A libc function used for RTLD_NEXT |
| // This function in not supposed to be called |
| extern "C" int __attribute__((weak)) close(int) { |
| abort(); |
| } |
| |
| extern "C" void* get_libc_close_ptr() { |
| return g_libc_close_ptr; |
| } |
| |
| |