platform_bionic/libc/bionic/exit.cpp
Peter Collingbourne b6a592b25b Make fork equivalent to vfork when HWASan or MTE stack tagging is enabled.
Bug: 274056091
Change-Id: Iac029ca6b0e26f57f20c0a54822b75e3cae67344
2023-05-08 15:26:00 -07:00

50 lines
1.9 KiB
C++

/*
* Copyright (C) 2020 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.
*/
#include <stdlib.h>
#include <unistd.h>
#include "private/bionic_defs.h"
#include "pthread_internal.h"
extern "C" void __cxa_finalize(void* dso_handle);
extern "C" void __cxa_thread_finalize();
extern "C" __noreturn void __exit_group(int status);
__attribute__((no_sanitize("memtag"))) void _exit(int status) {
__exit_group(status);
}
__strong_alias(_Exit, _exit);
__BIONIC_WEAK_FOR_NATIVE_BRIDGE
void exit(int status) {
__cxa_thread_finalize();
__cxa_finalize(nullptr);
_exit(status);
}