| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| extern void __cxa_finalize(void *); |
| extern void *__dso_handle; |
| |
| __attribute__((destructor)) |
| static void __on_dlclose(void) { |
| __cxa_finalize(&__dso_handle); |
| } |
| |
| /* Define a weak stub function here that will be overridden if the solib uses |
| * emutls. The function needs to be a definition, not just a declaration, |
| * because gold has a bug where it outputs weak+hidden symbols into the .dynsym |
| * table. */ |
| __attribute__((weak,visibility("hidden"))) |
| void __emutls_unregister_key(void) { |
| } |
| |
| /* Use a priority of 0 to run after any ordinary destructor function. The |
| * priority setting moves the function towards the front of the .fini_array |
| * section. */ |
| __attribute__((destructor(0))) |
| static void __on_dlclose_late(void) { |
| __emutls_unregister_key(); |
| } |
| |
| /* CRT_LEGACY_WORKAROUND should only be defined when building |
| * this file as part of the platform's C library. |
| * |
| * The C library already defines a function named 'atexit()' |
| * for backwards compatibility with older NDK-generated binaries. |
| * |
| * For newer ones, 'atexit' is actually embedded in the C |
| * runtime objects that are linked into the final ELF |
| * binary (shared library or executable), and will call |
| * __cxa_atexit() in order to un-register any atexit() |
| * handler when a library is unloaded. |
| * |
| * This function must be global *and* hidden. Only the |
| * code inside the same ELF binary should be able to access it. |
| */ |
| |
| #ifdef CRT_LEGACY_WORKAROUND |
| # include "__dso_handle.h" |
| #else |
| # include "__dso_handle_so.h" |
| # include "atexit.h" |
| #endif |
| #include "pthread_atfork.h" |
