/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 1988 AT&T * All Rights Reserved. */ /* * NOTE: The environment symbol pair may also occur in crt1.o. The definitions * within crt1.o are required for the generation of ABI compliant applications * (see bugid 1181124). No other symbol definitions should be added to this * file. */ /* * The original SVR3 ABI states: * * Application Constraints * As described above, libsys provides symbols for applications. In a few cases, * however, an application is obliged to provide symbols for the library. * * extern char **environ; * Normally, this symbol is synonymous with environ, as * exec(BA_OS) describes. This isn't always true, though, because * ANSI C does not define environ. Thus, an ANSI C-conforming * application can define its own environ symbol, unrelated to the pro- * cess environment. If the application defines environ and intends it * to have the System V Interface Definition, Third Edition semantics, it * must also define _environ so that the two symbols refer to the same * data object. * * The ABI description implies that the process environment should use * _environ and that nothing in libc should make reference to the unadorned * "environ" symbol. This way, an application can define and use a symbol * named "environ" for its own purposes without affecting the actual * process environment. */ #pragma weak environ = _environ const char **_environ = 0;