f14fb60209
* 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
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/* $NetBSD: initfini.c,v 1.10 2012/02/16 23:00:39 joerg Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: initfini.c,v 1.10 2012/02/16 23:00:39 joerg Exp $");
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#ifdef _LIBC
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#include "namespace.h"
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#endif
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#include <sys/param.h>
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#include <sys/exec.h>
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#ifndef __minix
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#include <sys/tls.h>
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#endif
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#include <stdbool.h>
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void _libc_init(void) __attribute__((__constructor__, __used__));
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void __guard_setup(void);
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void __libc_thr_init(void);
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void __libc_atomic_init(void);
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void __libc_atexit_init(void);
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void __libc_env_init(void);
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#if defined(__HAVE_TLS_VARIANT_I) || defined(__HAVE_TLS_VARIANT_II)
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__dso_hidden void __libc_static_tls_setup(void);
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#endif
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#ifdef __weak_alias
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__weak_alias(_dlauxinfo,___dlauxinfo)
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static void *__libc_dlauxinfo;
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void *___dlauxinfo(void) __pure;
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void *
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___dlauxinfo(void)
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{
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return __libc_dlauxinfo;
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}
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#endif
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static bool libc_initialised;
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void _libc_init(void);
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/*
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* Declare as common symbol to allow new libc with older binaries to
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* not trigger an undefined reference.
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*/
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struct ps_strings *__ps_strings;
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/*
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* _libc_init is called twice. The first time explicitly by crt0.o
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* (for newer versions) and the second time as indirectly via _init().
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*/
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void
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_libc_init(void)
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{
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if (libc_initialised)
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return;
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libc_initialised = 1;
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if (__ps_strings != NULL)
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__libc_dlauxinfo = __ps_strings->ps_argvstr +
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__ps_strings->ps_nargvstr + __ps_strings->ps_nenvstr + 2;
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/* For -fstack-protector */
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__guard_setup();
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#ifdef _REENTRANT
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/* Atomic operations */
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__libc_atomic_init();
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#endif
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#if defined(__HAVE_TLS_VARIANT_I) || defined(__HAVE_TLS_VARIANT_II)
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/* Initialize TLS for statically linked programs. */
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__libc_static_tls_setup();
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#endif
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#ifdef _REENTRANT
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/* Threads */
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__libc_thr_init();
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#endif
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/* Initialize the atexit mutexes */
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__libc_atexit_init();
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/* Initialize environment memory RB tree. */
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__libc_env_init();
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}
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