* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/* $NetBSD: initfini.c,v 1.10 2012/02/16 23:00:39 joerg Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2007 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Andrew Doran.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
|
|
__RCSID("$NetBSD: initfini.c,v 1.10 2012/02/16 23:00:39 joerg Exp $");
|
|
|
|
#ifdef _LIBC
|
|
#include "namespace.h"
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/exec.h>
|
|
#ifndef __minix
|
|
#include <sys/tls.h>
|
|
#endif
|
|
#include <stdbool.h>
|
|
|
|
void _libc_init(void) __attribute__((__constructor__, __used__));
|
|
|
|
void __guard_setup(void);
|
|
void __libc_thr_init(void);
|
|
void __libc_atomic_init(void);
|
|
void __libc_atexit_init(void);
|
|
void __libc_env_init(void);
|
|
|
|
#if defined(__HAVE_TLS_VARIANT_I) || defined(__HAVE_TLS_VARIANT_II)
|
|
__dso_hidden void __libc_static_tls_setup(void);
|
|
#endif
|
|
|
|
#ifdef __weak_alias
|
|
__weak_alias(_dlauxinfo,___dlauxinfo)
|
|
static void *__libc_dlauxinfo;
|
|
|
|
void *___dlauxinfo(void) __pure;
|
|
|
|
void *
|
|
___dlauxinfo(void)
|
|
{
|
|
return __libc_dlauxinfo;
|
|
}
|
|
#endif
|
|
|
|
static bool libc_initialised;
|
|
|
|
void _libc_init(void);
|
|
|
|
/*
|
|
* Declare as common symbol to allow new libc with older binaries to
|
|
* not trigger an undefined reference.
|
|
*/
|
|
struct ps_strings *__ps_strings;
|
|
|
|
/*
|
|
* _libc_init is called twice. The first time explicitly by crt0.o
|
|
* (for newer versions) and the second time as indirectly via _init().
|
|
*/
|
|
void
|
|
_libc_init(void)
|
|
{
|
|
|
|
if (libc_initialised)
|
|
return;
|
|
|
|
libc_initialised = 1;
|
|
|
|
if (__ps_strings != NULL)
|
|
__libc_dlauxinfo = __ps_strings->ps_argvstr +
|
|
__ps_strings->ps_nargvstr + __ps_strings->ps_nenvstr + 2;
|
|
|
|
/* For -fstack-protector */
|
|
__guard_setup();
|
|
|
|
#ifdef _REENTRANT
|
|
/* Atomic operations */
|
|
__libc_atomic_init();
|
|
#endif
|
|
|
|
#if defined(__HAVE_TLS_VARIANT_I) || defined(__HAVE_TLS_VARIANT_II)
|
|
/* Initialize TLS for statically linked programs. */
|
|
__libc_static_tls_setup();
|
|
#endif
|
|
|
|
#ifdef _REENTRANT
|
|
/* Threads */
|
|
__libc_thr_init();
|
|
#endif
|
|
|
|
/* Initialize the atexit mutexes */
|
|
__libc_atexit_init();
|
|
|
|
/* Initialize environment memory RB tree. */
|
|
__libc_env_init();
|
|
}
|