mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
c41041bc2f
1999-12-17 Andreas Jaeger <aj@suse.de> * stdlib/Versions: Export __cxa_atexit and __cxa_finalize. 1999-12-16 Mark Mitchell <mark@codesourcery.com> * stdlib/Makefile (routines): Add cxa_atexit and cxa_finalize. * stdlib/exit.h (flavor): Add ef_cxa. (exit_function): Add cxa variant. * stdlib/exit.c (exit): Handle ef_cxa exit functions. * stdlib/cxa_atexit.c: New file. * stdlib/cxa_finalize.c: New file.
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/* Copyright (C) 1991, 1995, 1996, 1997, 1999 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "exit.h"
|
|
|
|
#ifdef HAVE_GNU_LD
|
|
#include "set-hooks.h"
|
|
DEFINE_HOOK (__libc_atexit, (void))
|
|
#endif
|
|
|
|
|
|
/* Call all functions registered with `atexit' and `on_exit',
|
|
in the reverse of the order in which they were registered
|
|
perform stdio cleanup, and terminate program execution with STATUS. */
|
|
void
|
|
exit (int status)
|
|
{
|
|
/* We do it this way to handle recursive calls to exit () made by
|
|
the functions registered with `atexit' and `on_exit'. We call
|
|
everyone on the list and use the status value in the last
|
|
exit (). */
|
|
while (__exit_funcs != NULL)
|
|
{
|
|
struct exit_function_list *old;
|
|
|
|
while (__exit_funcs->idx > 0)
|
|
{
|
|
const struct exit_function *const f =
|
|
&__exit_funcs->fns[--__exit_funcs->idx];
|
|
switch (f->flavor)
|
|
{
|
|
case ef_free:
|
|
case ef_us:
|
|
break;
|
|
case ef_on:
|
|
(*f->func.on.fn) (status, f->func.on.arg);
|
|
break;
|
|
case ef_at:
|
|
(*f->func.at) ();
|
|
break;
|
|
case ef_cxa:
|
|
(*f->func.cxa.fn) (f->func.cxa.arg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
old = __exit_funcs;
|
|
__exit_funcs = __exit_funcs->next;
|
|
if (__exit_funcs != NULL)
|
|
/* Don't free the last element in the chain, this is the statically
|
|
allocate element. */
|
|
free (old);
|
|
}
|
|
|
|
#ifdef HAVE_GNU_LD
|
|
RUN_HOOK (__libc_atexit, ());
|
|
#else
|
|
{
|
|
extern void _cleanup (void);
|
|
_cleanup ();
|
|
}
|
|
#endif
|
|
|
|
_exit (status);
|
|
}
|