lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-30 22:43:12 +03:00
Code Activity

Update.

Browse Source 
2001-02-26  Ulrich Drepper  <drepper@redhat.com>

	* dlfcn/Makefile (distribute): Add modatexit.c and modcxaatexit.c.
	(tests): Add tstatexit and tstcxaatexit.
	(module-names): Add modatexit and modcxaatexit.
	Add rules to build and run tstatexit and tstcxaatexit.
	* dlfcn/modatexit.c: New file.
	* dlfcn/modcxaatexit.c: New file.
	* dlfcn/tstatexit.c: New file.
	* dlfcn/tstcxaatexit.c: New file.

	* io/Makefile: Pass -DHAVE_DOT_HIDDEN to stat and mknod functions if
	.hidden is available.
	* io/stat.c: If .hidden is available use it to avoid exporting
	functions.
	* io/fstat.c: Likewise.
	* io/lstat.c: Likewise.
	* io/stat64.c: Likewise.
	* io/fstat64.c: Likewise.
	* io/lstat64.c: Likewise.
	* sysdeps/generic/mknod.c: Likewise.

	* malloc/mtrace.c: Use __cxa_atexit and not atexit.
	* sysdeps/generic/bb_init_func.c: Likewise.
	* sysdeps/generic/libc-start.c: Likewise.

	* stdlib/atexit.c (__new_exitfn): Move to cxa_atexit.c.
	(atexit): Implement using __cxa_atexit.
	Use .hidden if availble to avoid exporting atexit.
	* stdlib/cxa_atexit.c (__new_exitfn): Moved to here from atexit.c.
	* stdlib/Versions: Export __new_exitfn for GLIBC_2.2.3.
	* stdlib/Makefile (routines): Add old_atexit.
	(static-only-routines): Add atexit.
	Pass -DHAVE_DOT_HIDDEN for atexit.c if .hidden is available.
	* stdlib/old_atexit.c: New file.

	* intl/Makefile: Remove bogus endif.
This commit is contained in:
Ulrich Drepper
2001-02-26 17:53:15 +00:00
parent d9e77f3d6e
commit c08bc50a60
22 changed files with 420 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

75
stdlib/atexit.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1996, 1999 Free Software Foundation, Inc.
/* Copyright (C) 1991, 1996, 1999, 2001 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
@ -16,75 +16,24 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <bits/libc-lock.h>
#include <stdlib.h>
#include "exit.h"
/* This is defined by newer gcc version unique for each module. */
extern void *__dso_handle __attribute__ ((__weak__));
/* Register FUNC to be executed by `exit'. */
int
atexit (void (*func) (void))
{
struct exit_function *new = __new_exitfn ();
if (new == NULL)
return -1;
new->flavor = ef_at;
new->func.at = func;
return 0;
return __cxa_atexit ((void (*) (void *)) func, NULL,
&__dso_handle == NULL ? NULL : __dso_handle);
}
/* We change global data, so we need locking. */
__libc_lock_define_initialized (static, lock)
static struct exit_function_list initial;
struct exit_function_list *__exit_funcs = &initial;
struct exit_function *
__new_exitfn (void)
{
struct exit_function_list *l;
size_t i = 0;
__libc_lock_lock (lock);
for (l = __exit_funcs; l != NULL; l = l->next)
{
for (i = 0; i < l->idx; ++i)
if (l->fns[i].flavor == ef_free)
break;
if (i < l->idx)
break;
if (l->idx < sizeof (l->fns) / sizeof (l->fns[0]))
{
i = l->idx++;
break;
}
}
if (l == NULL)
{
l = (struct exit_function_list *)
malloc (sizeof (struct exit_function_list));
if (l != NULL)
{
l->next = __exit_funcs;
__exit_funcs = l;
l->idx = 1;
i = 0;
}
}
/* Mark entry as used, but we don't know the flavor now. */
if (l != NULL)
l->fns[i].flavor = ef_us;
__libc_lock_unlock (lock);
return l == NULL ? NULL : &l->fns[i];
}
/* Hide the symbol so that no definition but the one locally in the
executable or DSO is used. */
#ifdef HAVE_DOT_HIDDEN
asm (".hidden\tatexit");
#endif