mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 10:30:20 +00:00
a3c8855372
flavor field last and protect with memory barrier. * stdlib/on_exit.c: Likewise. * stdlib/cxa_finalize.c: Use PTR_DEMANGLE on function pointer before using it. * stdlib/exit.c: Likewise.
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* Copyright (C) 1991, 1996, 2005 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <stdlib.h>
|
|
#include "exit.h"
|
|
#include <atomic.h>
|
|
#include <sysdep.h>
|
|
|
|
/* Register a function to be called by exit. */
|
|
int
|
|
__on_exit (void (*func) (int status, void *arg), void *arg)
|
|
{
|
|
struct exit_function *new = __new_exitfn ();
|
|
|
|
if (new == NULL)
|
|
return -1;
|
|
|
|
#ifdef PTR_MANGLE
|
|
PTR_MANGLE (func);
|
|
#endif
|
|
new->func.on.fn = func;
|
|
new->func.on.arg = arg;
|
|
atomic_write_barrier ();
|
|
new->flavor = ef_on;
|
|
return 0;
|
|
}
|
|
weak_alias (__on_exit, on_exit)
|