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/*
* Copyright (C) 2025 Kyle Evans <kevans@FreeBSD.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*
*/
#include <unistd.h>
static int exit_code = -1;
static bool fatal_atexit;
extern "C" {
void set_fatal_atexit(bool);
void set_exit_code(int);
}
void
set_fatal_atexit(bool fexit)
{
fatal_atexit = fexit;
}
void
set_exit_code(int code)
{
exit_code = code;
}
struct other_object {
~other_object() {
/*
* In previous versions of our __cxa_atexit handling, we would
* never actually execute this handler because it's added during
* ~object() below; __cxa_finalize would never revisit it. We
* will allow the caller to configure us to exit with a certain
* exit code so that it can run us twice: once to ensure we
* don't crash at the end, and again to make sure the handler
* actually ran.
*/
if (exit_code != -1)
_exit(exit_code);
}
};
void
create_staticobj()
{
static other_object obj;
}
struct object {
~object() {
/*
* If we're doing the fatal_atexit behavior (i.e., create an
* object that will add its own dtor for __cxa_finalize), then
* we don't exit here.
*/
if (fatal_atexit)
create_staticobj();
else if (exit_code != -1)
_exit(exit_code);
}
};
static object obj;
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