/*	$NetBSD: common.h,v 1.3 1999/08/19 20:52:36 kleink Exp $	*/

/*
 * Copyright (c) 1995 Christopher G. Demetriou
 * 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 Christopher G. Demetriou
 *	for the NetBSD Project.
 * 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.
 */

#include <sys/types.h>
#include <sys/exec.h>
#include <sys/syscall.h>

#include <stdlib.h>
#ifdef DYNAMIC
#ifdef __weak_alias
#define dlopen	_dlopen
#define dlclose	_dlclose
#define dlsym	_dlsym
#define dlerror	_dlerror
#endif
#include <dlfcn.h>
#include "rtld.h"
#else
typedef void Obj_Entry;
#endif

extern int	__syscall __P((int, ...));
#define	_exit(v)	__syscall(SYS_exit, (v))
#define	write(fd, s, n)	__syscall(SYS_write, (fd), (s), (n))

#define	_FATAL(str)				\
do {						\
	write(2, str, sizeof(str));		\
	_exit(1);				\
} while (0)

static char	*_strrchr __P((char *, char));

char	**environ;
char	*__progname = "";
struct ps_strings *__ps_strings = 0;

extern void	_init __P((void));
extern void	_fini __P((void));

#ifdef DYNAMIC
void	_rtld_setup __P((void (*)(void), const Obj_Entry *obj));

const Obj_Entry *__mainprog_obj;

/*
 * Arrange for _DYNAMIC to be weak and undefined (and therefore to show up
 * as being at address zero, unless something else defines it).  That way,
 * if we happen to be compiling without -static but with without any
 * shared libs present, things will still work.
 */
extern int _DYNAMIC;
__weak_extern(_DYNAMIC);
#endif /* DYNAMIC */

#ifdef MCRT0
extern void	monstartup __P((u_long, u_long));
extern void	_mcleanup __P((void));
extern unsigned char _etext, _eprol;
#endif /* MCRT0 */

int main __P((int, char **, char **));