/* $OpenBSD: crtbegin.c,v 1.1 1996/11/13 21:28:03 niklas Exp $ */ /* $NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $ */ /* * Copyright (c) 1993 Paul Kranenburg * All rights reserved. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Paul Kranenburg. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #ifndef ECOFF_COMPAT /* * XXX EVENTUALLY SHOULD BE MERGED BACK WITH c++rt0.c */ /* * Run-time module for GNU C++ compiled shared libraries. * * The linker constructs the following arrays of pointers to global * constructors and destructors. The first element contains the * number of pointers in each. * The tables are also null-terminated. */ #include static void (*__CTOR_LIST__[1]) __P((void)) __attribute__((section(".ctors"))) = { (void *)-1 }; /* XXX */ static void (*__DTOR_LIST__[1]) __P((void)) __attribute__((section(".dtors"))) = { (void *)-1 }; /* XXX */ static void __dtors __P((void)); static void __ctors __P((void)); static void __dtors() { unsigned long i = (unsigned long) __DTOR_LIST__[0]; void (**p)(void); if (i == -1) { for (i = 1; __DTOR_LIST__[i] != NULL; i++) ; i--; } p = __DTOR_LIST__ + i; while (i--) (**p--)(); } static void __ctors() { void (**p)(void) = __CTOR_LIST__ + 1; while (*p) (**p++)(); } extern void __init(void) __attribute__((section(".init"))); void __init() { static int initialized = 0; /* * Call global constructors. * Arrange to call global destructors at exit. */ if (!initialized) { initialized = 1; __ctors(); } } extern void __fini(void) __attribute__((section(".fini"))); void __fini() { /* * Call global destructors. */ __dtors(); } #endif /* !ECOFF_COMPAT */