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/* $OpenBSD: crt0.c,v 1.7 2016/05/07 19:30:53 guenther Exp $ */ |
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/* |
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* Copyright (c) 1995 Christopher G. Demetriou |
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* All rights reserved. |
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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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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* This product includes software developed by Christopher G. Demetriou |
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* for the NetBSD Project. |
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* 4. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <stdlib.h> |
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#include <limits.h> |
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#include "md_init.h" |
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#ifdef MD_RCRT0_START |
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#include "boot.h" |
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#endif |
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/* some defaults */ |
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#ifndef MD_START_ARGS |
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#define MD_START_ARGS \ |
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int argc, char **argv, char **envp, void (*cleanup)(void) |
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#endif |
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#ifndef MD_START |
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#define MD_START ___start |
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static void ___start(MD_START_ARGS) __used; |
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#endif |
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#ifndef MD_EPROL_LABEL |
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#define MD_EPROL_LABEL __asm(" .text\n_eprol:") |
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#endif |
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char ***_csu_finish(char **_argv, char **_envp, void (*_cleanup)(void)); |
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#ifdef MCRT0 |
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#include <sys/gmon.h> |
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extern unsigned char _etext, _eprol; |
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#endif /* MCRT0 */ |
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#ifdef RCRT0 |
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#ifdef MD_RCRT0_START |
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MD_RCRT0_START; |
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#endif |
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#else |
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#ifdef MD_CRT0_START |
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MD_CRT0_START; |
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#endif |
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#endif |
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void |
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MD_START(MD_START_ARGS) |
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{ |
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char ***environp; |
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#ifdef MD_START_SETUP |
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MD_START_SETUP |
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#endif |
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#ifndef MD_NO_CLEANUP |
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environp = _csu_finish(argv, envp, cleanup); |
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#else |
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environp = _csu_finish(argv, envp, NULL); |
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#endif |
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#ifdef MCRT0 |
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atexit(_mcleanup); |
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_monstartup((u_long)&_eprol, (u_long)&_etext); |
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#endif |
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__init(); |
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exit(main(argc, argv, *environp)); |
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} |
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#ifdef MCRT0 |
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MD_EPROL_LABEL; |
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#endif |